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diff --git a/src/tools/qdoc/doc/qdoc-manual.qdoc b/src/tools/qdoc/doc/qdoc-manual.qdoc new file mode 100644 index 0000000000..3e67579f2a --- /dev/null +++ b/src/tools/qdoc/doc/qdoc-manual.qdoc @@ -0,0 +1,8764 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** GNU Free Documentation License +** Alternatively, this file may be used under the terms of the GNU Free +** Documentation License version 1.3 as published by the Free Software +** Foundation and appearing in the file included in the packaging of +** this file. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms +** and conditions contained in a signed written agreement between you +** and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \page index.html + \nextpage Introduction to QDoc + + \title Table of Contents + + \list + \li \l {Introduction to QDoc} + \li \l {Getting Started with QDoc} + \li \l {Command Index} + \li \l {Topic Commands} + \li \l {Context Commands} + \list + \li \l {Document Navigation} + \li \l {Reporting Status} + \li \l {Thread Support} + \li \l {Relating Things} + \li \l {Grouping Things} + \li \l {Naming Things} + \endlist + \li \l{Markup Commands} + \list + \li \l {Text Markup} + \li \l {Document Structure} + \li \l {Including Code Inline} + \li \l {Including External Code} + \li \l {Creating Links} + \li \l {Including Images} + \li \l {Tables and Lists} + \li \l {Special Content} + \li \l {Miscellaneous} + \endlist + \li \l{Creating DITA Maps} + \li \l {The QDoc Configuration File} + \list + \li \l {Generic Configuration Variables} + \li \l {Creating Help Project Files} + \li \l {C++ Specific Configuration Variables} + \li \l {HTML Specific Configuration Variables} + \li \l {Supporting Derived Projects} + \li \l {qt.qdocconf} + \li \l {minimum.qdocconf} + \li \l {Generating DITA XML Output} + \endlist + \endlist + +*/ + +/*! + \page 01-qdoc-manual.html + \contentspage Table of Contents + \previouspage Table of Contents + \nextpage Command Index + + \title Introduction to QDoc + + QDoc is a tool used by Qt Developers to generate documentation for + software projects. It works by extracting \e {qdoc comments} from + project source files and then formatting these comments as HTML + pages or DITA XML documents, etc. QDoc finds qdoc comments in \c + {.cpp} files and in \c {.qdoc} files. QDoc does not look for qdoc + comments in \c {.h} files. A qdoc comment always begins with an + exclamation mark \b{!} e.g.: + + \code + / *! + \class QObject + \brief The QObject class is the base class of all Qt objects. + + \ingroup objectmodel + + \reentrant + + QObject is the heart of the Qt \l{Object Model}. The + central feature in this model is a very powerful mechanism + for seamless object communication called \l{signals and + slots}. You can connect a signal to a slot with connect() + and destroy the connection with disconnect(). To avoid + never ending notification loops you can temporarily block + signals with blockSignals(). The protected functions + connectNotify() and disconnectNotify() make it possible to + track connections. + + QObjects organize themselves in \l {Object Trees & + Ownership} {object trees}. When you create a QObject with + another object as parent, the object will automatically + add itself to the parent's children() list. The parent + takes ownership of the object; i.e., it will automatically + delete its children in its destructor. You can look for an + object by name and optionally type using findChild() or + findChildren(). + + Every object has an objectName() and its class name can be + found via the corresponding metaObject() (see + QMetaObject::className()). You can determine whether the + object's class inherits another class in the QObject + inheritance hierarchy by using the inherits() function. + + .... + * / + \endcode + + From the qdoc comment above, QDoc generates the now famous HTML + page \l {http://doc.qt.nokia.com/qobject.html#details} + {QObject Class Reference}. + + This manual explains how to use the QDoc commands in qdoc comments + to embed good documentation in your source files. It also explains + how to make a \l {The QDoc Configuration File} {QDoc configuration + file}, which you will pass to QDoc on the command line. + + \section1 Running QDoc + + The current name of the QDoc program is \c {qdoc3}. To run qdoc3 + from the command line, give it the name of a configuration file: + + \quotation + \c {$ ../../bin/qdoc3 ./config.qdocconf} + \endquotation + + QDoc recognizes the \c {.qdocconf} suffix as a \l{The QDoc + Configuration File} {QDoc configuration file}. The configuration + file is where you tell QDoc where to find the project source + files, header files, and \c {.qdoc} files. It is also where you + tell QDoc what kind of output to generate (HTML, DITA XML,...), + and where to put the generated documentation. The configuration + file also contains other information for QDoc. + + See \l{The QDoc Configuration File} for a instructions on how to + build a Qdoc configuration file. + + \section1 How QDoc Works + + QDoc begins by reading the configuarion file you specified on the + command line. It stores all the variables from the configuration + file for later use. One of the first variables it uses is \c + {outputformats}. This variable tells QDoc which output generators + it will run. The default value is \e {HTML}, so if you don't set + \c {outputformats} in your configuration file, QDoc will generate + HTML output. That's usually what you will want anyway, but you can + also specify \e {DITAXML} to get DITA XML output instead. + + Next, QDoc uses the values of the \l + {22-qdoc-configuration-generalvariables.html#headerdirs-variable} + {headerdirs} variable and/or the \l + {22-qdoc-configuration-generalvariables.html#headers-variable} + {headers} variable to find and parse all the header files for your + project. QDoc does \e not scan header files for qdoc comments. It + parses the header files to build a master tree of all the items + that should be documented (i.e. the items that QDoc should find + qdoc comments for). + + After parsing all the header files and building the master tree of + items to be documented, QDoc uses the value of the \l + {22-qdoc-configuration-generalvariables.html#sourcedirs-variable} + {sourcedirs} variable and/or the value of the \l + {22-qdoc-configuration-generalvariables.html#sources-variable} + {sources} variable to find and parse all the \c {.cpp} and \c + {.qdoc} files for your project. These are the files QDoc scans for + \e {qdoc comments}. Remember that a qdoc comment begins with + an exclamation mark, i.e. \b {/*!} . + + For each qdoc comment it finds, it searches the master tree for + the item where the documentation belongs. The it interprets the + qdoc commands in the comment and stores the interpreted commands + and the comment text in the tree node for the item. + + Finally, QDoc traverses the master tree. For each node, if the + node has stored documentation, QDoc calls the output generator + specified by the \c {outputformats} variable to format and write + the documentation in the directory specified in the configuration + file in the \l + {22-qdoc-configuration-generalvariables.html#outputdir-variable} + {outputdir} variable. + + \section1 Command Types + + QDoc interprets three types of commands: + + \list + \li \l {Topic Commands} + \li \l {Context Commands} + \li \l {Markup Commands} + \endlist + + Topic commands identify the elememt you are documenting, e.g. a C++ + class, function, or type, an example, or an extra page of text + that doesn't map to an underlying C++ elememnt. + + Context commands tell QDoc how the element being documented + relates to other documented elememnts, e.g. next and previous page + links or inclusion in page groups or library modules. Context + commands can also provide information about the documented element + that QDoc can't get from the source files, e.g. whether the + element is thread-safe, an overloaded or reimplemented function, + or that it has been deprecated. + + Markup commands tell QDoc how text and image elements in the + document should be rendered, or about the document's outline + structure. +*/ + +/*! + \page 03-qdoc-commands-markup.html + \contentspage Table of Contents + \previouspage Naming Things + \nextpage Text Markup + + \title Markup Commands + + The markup commands indicate the generated documentation's visual + appearance and logical structure. + + \list + \li \l {04-qdoc-commands-textmarkup.html#a-command} {\\a} + \li \l {11-qdoc-commands-specialcontent.html#abstract-command} {\\abstract} + \li \l {12-0-qdoc-commands-miscellaneous.html#annotatedlist-command} {\\annotatedlist} + \li \l {04-qdoc-commands-textmarkup.html#b-command} {\\b} \span {class="newStuff"} {(new 5/3/2012)} + \li \l {06-qdoc-commands-includecodeinline.html#badcode-command} {\\badcode} + \li \l {04-qdoc-commands-textmarkup.html#b-command} {\\bold} {(deprecated, use \\b)} + \li \l {11-qdoc-commands-specialcontent.html#brief-command} {\\brief} + \li \l {04-qdoc-commands-textmarkup.html#c-command} {\\c} + \li \l {09-qdoc-commands-includingimages.html#caption-command} {\\caption} + \li \l {05-qdoc-commands-documentstructure.html#chapter-command} {\\chapter} + \li \l {06-qdoc-commands-includecodeinline.html#code-command} {\\code} + \li \l {07-0-qdoc-commands-includingexternalcode.html#codeline-command} {\\codeline} + \li \l {04-qdoc-commands-textmarkup.html#div-command} {\\div} + \li \l {07-0-qdoc-commands-includingexternalcode.html#dots-command} {\\dots} + \li \l {04-qdoc-commands-textmarkup.html#e-command} {\\e} \span {class="newStuff"} {(new 5/3/2012)} + \li \l {12-0-qdoc-commands-miscellaneous.html#else-command} {\\else} + \li \l {12-0-qdoc-commands-miscellaneous.html#endif-command} {\\endif} + \li \l {12-0-qdoc-commands-miscellaneous.html#expire-command} {\\expire} + \li \l {11-qdoc-commands-specialcontent.html#footnote-command} {\\footnote} + \li \l {12-0-qdoc-commands-miscellaneous.html#generatelist-command} {\\generatelist} + \li \l {10-qdoc-commands-tablesandlists.html#header-command} {\\header} + \li \l {04-qdoc-commands-textmarkup.html#e-command} {\\i} \span {class="newStuff"} {(deprecated, use \\e)} + \li \l {12-0-qdoc-commands-miscellaneous.html#if-command} {\\if} + \li \l {09-qdoc-commands-includingimages.html#image-command} {\\image} + \li \l {12-0-qdoc-commands-miscellaneous.html#include-command} {\\include} + \li \l {12-0-qdoc-commands-miscellaneous.html#include-command} {\\input} + \li \l {09-qdoc-commands-includingimages.html#inlineimage-command} {\\inlineimage} + \li \l {08-qdoc-commands-creatinglinks.html#keyword-command} {\\keyword} + \li \l {08-qdoc-commands-creatinglinks.html#l-command} {\\l} + \li \l {11-qdoc-commands-specialcontent.html#legalese-command} {\\legalese} + \li \l {10-qdoc-commands-tablesandlists.html#li-command} {\\li} \span {class="newStuff"} {(new 5/3/2012)} + \li \l {10-qdoc-commands-tablesandlists.html#list-command} {\\list} + \li \l {12-0-qdoc-commands-miscellaneous.html#meta-command} {\\meta} + \li \l {06-qdoc-commands-includecodeinline.html#newcode-command} {\\newcode} + \li \l {10-qdoc-commands-tablesandlists.html#li-command} {\\o} \span {class="newStuff"} {(deprecated, use \\li)} + \li \l {06-qdoc-commands-includecodeinline.html#oldcode-command} {\\oldcode} + \li \l {12-0-qdoc-commands-miscellaneous.html#omit-command} {\\omit} + \li \l {05-qdoc-commands-documentstructure.html#part-command} {\\part} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printline-command} {\\printline} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printto-command} {\\printto} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printuntil-command} {\\printuntil} + \li \l {11-qdoc-commands-specialcontent.html#quotation-command} {\\quotation} + \li \l {07-0-qdoc-commands-includingexternalcode.html#quotefile-command} {\\quotefile} + \li \l {07-0-qdoc-commands-includingexternalcode.html#quotefromfile-command} {\\quotefromfile} + \li \l {12-0-qdoc-commands-miscellaneous.html#raw-command} {\\raw} + \li \l {10-qdoc-commands-tablesandlists.html#row-command} {\\row} + \li \l {08-qdoc-commands-creatinglinks.html#sa-command} {\\sa} + \li \l {05-qdoc-commands-documentstructure.html#sectionOne-command} {\\section1} + \li \l {05-qdoc-commands-documentstructure.html#sectionTwo-command} {\\section2} + \li \l {05-qdoc-commands-documentstructure.html#sectionThree-command} {\\section3} + \li \l {05-qdoc-commands-documentstructure.html#sectionFour-command} {\\section4} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipline-command} {\\skipline} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipto-command} {\\skipto} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipuntil-command} {\\skipuntil} + \li \l {07-0-qdoc-commands-includingexternalcode.html#snippet-command} {\\snippet} + \li \l {04-qdoc-commands-textmarkup.html#span-command} {\\span} + \li \l {04-qdoc-commands-textmarkup.html#sub-command} {\\sub} + \li \l {04-qdoc-commands-textmarkup.html#sup-command} {\\sup} + \li \l {10-qdoc-commands-tablesandlists.html#table-command} {\\table} + \li \l {11-qdoc-commands-specialcontent.html#tableofcontents-command} {\\tableofcontents} + \li \l {08-qdoc-commands-creatinglinks.html#target-command} {\\target} + \li \l {04-qdoc-commands-textmarkup.html#tt-command} {\\tt} + \li \l {04-qdoc-commands-textmarkup.html#underline-command} {\\underline} + \li \l {12-0-qdoc-commands-miscellaneous.html#raw-command} {\\unicode} + \li \l {11-qdoc-commands-specialcontent.html#warning-command} {\\warning} + \li \l {04-qdoc-commands-textmarkup.html#backslash-command} {\\\\} + \endlist +*/ + +/*! + \page 04-qdoc-commands-textmarkup.html + \contentspage Table of Contents + \previouspage Markup Commands + \nextpage Document Structure + + \title Text Markup + + The text formatting commands indicate how text is to be rendered. + + \target a-command + \section1 \\a (parameter marker) + + The \\a command tells QDoc the next word is a formal parameter name. + + A warning is emitted when a formal parameter is not documented or + is misspelled, so when you document a function you should mention + each formal parameter by name in the function description, + preceded by the \\a command. The parameter name is then rendered + in italics. + + \code + / *! + Constructs a line edit containing the text + \a contents. The \a parent parameter is sent + to the QWidget constructor. + * / + + QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent) + { + ... + } + + \endcode + + QDoc renders this as: + + \quotation + \b {QLineEdit::QLineEdit ( const QString & + contents, QWidget *parent )} + + Constructs a line edit containing the text \a contents. + The \a parent parameter is sent to the QWidget constructor. + \endquotation + + You can enclose the formal parameter name in curly brackets, if + you want to, but it isn't necessary. + + \target c-command + \section1 \\c (code font) + + The \\c command is used for rendering variable names, user-defined + class names, and C++ keywords (e.g. \c int and \c for) in the code + font. + + The command renders its argument using a typewriter font. For + example: + + \code + / *! + The \c AnalogClock class provides a clock widget with hour + and minute hands that is automatically updated every + few seconds. + * / + \endcode + + QDoc renders this as: + + \quotation + The \c AnalogClock class provides a clock widget with hour + and minute hands that is automatically updated every + few seconds. + \endquotation + + If the text to be rendered in the code font contains spaces, enclose the + entire text in curly brackets. + + \code + \c {QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent)} + \endcode + + QDoc renders this as: + + \quotation + \c {QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent)} + \endquotation + + The \\c command accepts the special character \c \ within its + argument, i.e. it renders it as a normal character. So if you want + to use nested commands, you must use the \l {tt-command} {teletype + (\\tt)} command instead. + + See also \l {tt-command} {\\tt} and \l {code-command} {\\code}. + + \target div-command + \section1 \\div + + The \\div and \\enddiv commands delimit a large or small block of + text (which may include other QDoc commands) to which special + formatting attributes should be applied. + + An argument must be provided in curly braces, as in the qdoc + comment shown below. The argument is not interpreted but is used + as attribute(s) of the tag that is ultimately output by qdoc. + + For example, we might want to render an inline image so that it + floats to the right of the current block of text: + + \code + / *! + \div {class="float-right"} + \inlineimage qml-column.png + \enddiv + + * / + \endcode + + If qdoc is generating HTML, it will translate these commands to: + + \code + <div class="float-right"><p><img src="images/qml-column.png" /></p></div> + \endcode + + For HTML, the attribute value \e {float-right} then will refer to + a clause in the style.css file. which in this case could be: + + \code + div.float-right + { + float: right; margin-left: 2em + } + \endcode + + If qdoc is generating DITA XML, it will translate the commands to: + + \code + <sectiondiv outputclass="float-right"> + <p> + <fig> + <image href="images/qml-column.png" placement="inline"/> + </fig> + </p> + </sectiondiv> + \endcode + + Your DITA XML publishing program must then recognize the \e + {outputclass} attribute value. + + \note The \b {\\div} command can be nested. + + Below is an example taken from the index.qdoc file used to + generate index.html for Qt 4.7: + + \code + \div {class="indexbox guide"} + \div {class="heading"} + Qt Developer Guide + \enddiv + \div {class="indexboxcont indexboxbar"} + \div {class="section indexIcon"} \emptyspan + \enddiv + \div {class="section"} + Qt is a cross-platform application and UI + framework. Using Qt, you can write web-enabled + applications once and deploy them across desktop, + mobile and embedded operating systems without + rewriting the source code. + \enddiv + \div {class="section sectionlist"} + \list + \li \l{Getting Started Guides} {Getting started} + \li \l{Installation} {Installation} + \li \l{how-to-learn-qt.html} {How to learn Qt} + \li \l{tutorials.html} {Tutorials} + \li \l{Qt Examples} {Examples} + \li \l{qt4-7-intro.html} {What's new in Qt 4.7} + \endlist + \enddiv + \enddiv + \enddiv + \endcode + + When all the class attribute values are defined as they are in the + style.css file that is used for rendering the Qt 4.7 documentation, + the above example is rendered as: + + \div {class="indexbox guide"} + \div {class="heading"} + Qt Developer Guide + \enddiv + \div {class="indexboxcont indexboxbar"} + \div {class="section indexIcon"} \emptyspan + \enddiv + \div {class="section"} + Qt is a cross-platform application and UI + framework. Using Qt, you can write web-enabled + applications once and deploy them across desktop, + mobile and embedded operating systems without + rewriting the source code. + \enddiv + \div {class="section sectionlist"} + \list + \li \l{Getting Started Guides} {Getting started} + \li \l{Installation} {Installation} + \li \l{how-to-learn-qt.html} {How to learn Qt} + \li \l{tutorials.html} {Tutorials} + \li \l{Qt Examples} {Examples} + \li \l{qt4-7-intro.html} {What's new in Qt 4.7} + \endlist + \enddiv + \enddiv + \enddiv + + When generating DITA XML, qdoc outputs the nested \e {div} commands as: + + \code + <sectiondiv outputclass="indexbox guide"> + <sectiondiv outputclass="heading"> + <p>Qt Developer Guide</p> + </sectiondiv> + <sectiondiv outputclass="indexboxcont indexboxbar"> + <sectiondiv outputclass="section indexIcon"/> + <sectiondiv outputclass="section"> + <p>Qt is a cross-platform application and UI + framework. Using Qt, you can write + web-enabled applications once and deploy + them across desktop, mobile and embedded + operating systems without rewriting the + source code. + </p> + </sectiondiv> + <sectiondiv outputclass="section sectionlist"> + <ul> + <li> + <xref href="gettingstarted.xml#id-606ee7a8-219b-47b7-8f94-91bc8c76e54c">Getting started</xref> + </li> + <li> + <xref href="installation.xml#id-075c20e2-aa1e-4f88-a316-a46517e50443">Installation</xref> + </li> + <li> + <xref href="how-to-learn-qt.xml#id-49f509b5-52f9-4cd9-9921-74217b9a5182">How to learn Qt</xref> + </li> + <li> + <xref href="tutorials.xml#id-a737f955-a904-455f-b4aa-0dc69ed5a64f">Tutorials</xref> + </li> + <li> + <xref href="all-examples.xml#id-98d95159-d65b-4706-b08f-13d80080448d">Examples</xref> + </li> + <li> + <xref href="qt4-7-intro.xml#id-519ae0e3-4242-4c2a-b2be-e05d1e95f177">What's new in Qt 4.7</xref> + </li> + </ul> + </sectiondiv> + </sectiondiv> + </sectiondiv> + \endcode + + Your DITA XML publishing program must recognize the values of the + \e {outputclass} attribute. + + See also \l {span-command} {\\span}. + + \target span -command + \section1 \\span + + The \\span command is for applying special formatting + attributes to a small block of text. + + Two arguments must be provided, each argument in curly braces, as + shown in the qdoc comment below. The first argument is not + interpreted but is used as the formatting attribute(s) of the tag + that is ultimately output by qdoc. The second argument is the text + to be rendered with the special formatting attributes. + + For example, we might want to render the first word of each + element in a numeric list in blue. + + \code + / *! + Global variables with complex types: + \list 1 + \li \span {class="variableName"} {mutableComplex1} in globals.cpp at line 14 + \li \span {class="variableName"} {mutableComplex2} in globals.cpp at line 15 + \li \span {class="variableName"} {constComplex1} in globals.cpp at line 16 + \li \span {class="variableName"} {constComplex2} in globals.cpp at line 17 + \endlist + * / + \endcode + + Class \e {variableName} refers to a clause in your style.css. + + \code + .variableName + { + font-family: courier; + color: blue + } + \endcode + + Using the \e {variableName} clause shown above, the example is rendered as: + + Global variables with complex types: + \list 1 + \li \span {class="variableName"} {mutableComplex1} in globals.cpp at line 14 + \li \span {class="variableName"} {mutableComplex2} in globals.cpp at line 15 + \li \span {class="variableName"} {constComplex1} in globals.cpp at line 16 + \li \span {class="variableName"} {constComplex2} in globals.cpp at line 17 + \endlist + + \note The \b span command does not cause a new paragraph to be + started. + + See also \l {div-command} {\\div}. + + \target tt-command + \section1 \\tt (teletype font) + + The \\tt command renders its argument in a monospace font. This + command behaves just like the \l {c-command} {\\c} command, except + that \\tt allows you to nest QDoc commands within the argument + (e.g. \l {e-command} {\\e}, \l {b-command} {\\b} and \l + {underline-command} {\\underline}). + + \code + / *! + After \c setupUi() populates the main container with + child widgets it scans the main container's list of + slots for names with the form + \tt{on_\e{objectName}_\e{signalName}().} + * / + \endcode + + QDoc renders this as: + + \quotation + After \c setupUi() populates the main container with + child widgets it scans the main container's list of + slots for names with the form + \tt{on_\e{objectName}_\e{signalName}().} + \endquotation + + If the text to be rendered in the code font contains spaces, enclose the + entire text in curly brackets. + + \code + \tt {QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent)} + \endcode + + QDoc renders this as: + + \quotation + \tt {QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent)} + \endquotation + + See also \l {c-command} {\\c}. + + \target b-command + \section1 \\b + + The \\b command renders its argument in bold font. This command used + to be called \\bold. + + \code + / *! + This is regular text; \b {this text is + rendered using the \\b command}. + * / + \endcode + + QDoc renders this as: + + \quotation + This is regular text; \b {this text is rendered using + the \\b command}. + \endquotation + + \target e-command + \section1 \\e (emphasis, italics) \span {class="newStuff"} {(new 5/3/2012)} + + The \\e command renders its argument in a special font, normally italics. This + command used to be called \\i, which is now deprecated. Use \e for italics. + + If the argument contains spaces or other punctuation, enclose the + argument in curly brackets. + + \code + / *! + Here, we render \e {a few words} in italic. + * / + \endcode + + QDoc renders this as: + + \quotation + Here, we render \e {a few words} in italic. + \endquotation + + If you want to use other QDoc commands within an argument that + contains spaces, you always need to enclose the argument in + braces. But QDoc is smart enough to count parentheses [3], so you + don't need braces in cases like this: + + \code + / *! + An argument can sometimes contain whitespaces, + for example: \e QPushButton(tr("A Brand New Button")) + * / + \endcode + + QDoc renders this as: + + \quotation + An argument can sometimes contain whitespaces, + for example: \e QPushButton(tr("A Brand New Button")) + \endquotation + + Finally, trailing punctuation is not included in an argument [4], + nor is 's [5] + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + <tr valign="top" bgcolor="#a2c511"> + <th></th> + <th>QDoc Syntax</th> + <th>Generated Documentation</th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td>1</td> + <td>A variation of a command button is a \e menu + button.</td> + <td>A variation of a command button is a <i>menu</i> + button.</td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td>2</td> + <td>The QPushButton widget provides a + \e {command button}.</td> + <td>The QPushButton widget provides a + <i>command button</i>.</td> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td>3</td> + <td>Another class of buttons are option buttons + \e (see QRadioButton).</td> + <td>Another class of buttons are option buttons + <i> (see QRadioButton)</i>.</td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td>4</td> + <td>A push button emits the signal \e clicked().</td> + <td>A push button emits the signal <i>clicked</i>().</td> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td>5</td> + <td>The \e QPushButton's checked property is + false by default.</td> + <td>The <i>QPushButton</i>'s checked property is + false by default.</td> + </tr> + + </table> + \endraw + + \target sub-command + \section1 \\sub + + The \\sub command renders its argument lower than the baseline of + the regular text, using a smaller font. + + \code + / *! + Definition (Range): Consider the sequence + {x\sub n}\sub {n > 1} . The set + + {x\sub 2, x\sub 3, x\sub 4, ...} = {x\sub n ; n = 2, 3, 4, ...} + + is called the range of the sequence. + * / + \endcode + + QDoc renders this as: + + \quotation + Definition (Range): Consider the sequence + {x\sub n}\sub {n > 1} . The set + + {x\sub 2, x\sub 3, x\sub 4, ...} = {x\sub n ; n = 2, 3, 4, ...} + + is called the range of the sequence. + \endquotation + + If the argument contains spaces or other punctuation, enclose the + argument in curly brackets. + + \target sup-command + \section1 \\sup + + The \\sup command renders its argument higher than + the baseline of the regular text, using a smaller font. + + \code + / *! + The series + + 1 + a + a\sup 2 + a\sup 3 + a\sup 4 + ... + + is called the \i {geometric series}. + * / + \endcode + + QDoc renders this as: + + \quotation + The series + + 1 + a + a\sup 2 + a\sup 3 + a\sup 4 + ... + + is called the \e {geometric series}. + \endquotation + + If the argument contains spaces or other punctuation, enclose the + argument in curly brackets. + + \target underline-command + \section1 \\underline + + The \\underline command renders its argument underlined. + + \code + / *! + The \underline {F}ile menu gives the users the possibility + to open, and edit, an existing file, save a new or modified + file, and exit the application. + * / + \endcode + + QDoc renders this as: + + \quotation + The \underline {F}ile menu gives the users the possibility + to open, and edit, an existing file, save a new or modified + file, and exit the application. + \endquotation + + If the argument contains spaces or other punctuation, enclose the + argument in curly brackets. + + \target backslash-command + \section1 \\\\ (double backslash) + + The \\\\ command expands to a single backslash. + + QDoc commands always start with a backslash alone. To display an + actual backslash in the text you need to type two of the kind. If + you want to display two backslashes, you need to type four, and so + forth. + + \code + / *! + The \\\\ command is useful if you want a + backslash to appear verbatim, for example, + writing C:\\windows\\home\\. + * / + \endcode + + QDoc renders this as: + + \quotation + The \\\\ command is useful if you want a + backslash to appear verbatim, for example, + writing C:\\windows\\home\\. + \endquotation + + However, if you want your text to appear in a typewriter font as + well, you can use the \l {c-command} {\\c} command instead, which + accepts and renders the backslash as any other character. For + example: + + \code + / *! + The \\c command is useful if you want a + backslash to appear verbatim, and the word + that contains it written in a typewriter font, + like this: \c {C:\windows\home\}. + * / + \endcode + + QDoc renders this as: + + \quotation + The \\c command is useful if you want a + backslash to appear verbatim, and the word + that contains it written in a typewriter font, + like this: \c {C:\windows\home\}. + \endquotation + +*/ + +/*! + \page 05-qdoc-commands-documentstructure.html + \previouspage Text Markup + \contentspage Table of Contents + \nextpage Including Code Inline + + \title Document Structure + + The document structuring commands are for dividing your document + into sections. QDoc supports six kinds of sections: \c \part, \c + \chapter, \c \section1, \c \section2, \c \section3 and \c + \section4. The \c \section1..4 commands are the most useful. The + correspond to the traditional section, subsection, etc used in + outlining. + + \target part-command + \section1 \\part + + The \\part command is intended for use in a large document, like a + book. + + In general a document structuring command considers everything + that follows it until the first line break as its argument. The + argument is rendered as the unit's title. If the title needs to be + spanned over several lines, make sure that each line (except the + last one) is ended with a backslash. + + In total, there are six levels of sections in QDoc: \c \part, \c + \chapter, \c \section1, \c \section2, \c \section3 and \c + \section4. \c \section1 to \c \section4 correspond to the + traditional section, subsection, subsubsection and + subsubsubsection. + + There is a strict ordering of the section units: + + \code + part + | + chapter + | + section1 + | + section2 + | + section3 + | + section4 + \endcode + + For example, a \c section1 unit can only appear as the top level + section or inside a \c chapter unit. Skipping a section unit, for + example from \c part to \c section1, is not allowed. + + You can \e begin with either of the three: \c part, \c chapter or + \c section1. + + + \code + / *! + \part Basic Qt + + This is the first part. + + + \chapter Getting Started + + This is the first part's first chapter. + + + \section1 Hello Qt + + This is the first chapter's first section. + + + \section1 Making Connections + + This is the first chapter's second section. + + + \section1 Using the Reference Documentation + + This is the first chapter's third section. + + + \chapter Creating Dialogs + + This is the first part's second chapter. + + + \section1 Subclassing QDialog + + This is the second chapter's first section. + + ... + + + \part Intermediate Qt + + This is the second part. + + + \chapter Layout Management + + This is the second part's first chapter. + + + \section1 Basic Layouts + + This is the first chapter's first section. + + ... + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <a name="Basic Qt"> + <h1>Basic Qt</h1> + </a> + <p>This is the first part.</p> + + <a name="Getting started"> + <h2>Getting Started</h2> + </a> + This is the first part's first chapter.</p> + + <a name="Hello Qt"> + <h3>Hello Qt</h3> + </a> + <p>This is the first chapter's first section.</p> + + <a name="Making Connections"> + <h3>Making Connections</h3> + </a> + <p>This is the first chapter's second section.</p> + + <a name="Using the Reference Documentation"> + <h3>Using the Reference Documentation</h3> + </a> + <p>This is the first chapter's third section.</p> + + <a name="Creating Dialogs"> + <h2>Creating Dialogs</h2> + </a> + <p>This is the first part's second chapter.</p> + + <a name="Subclassing QDialog"> + <h3>Subclassing QDialog</h3> + </a> + <p>This is the second chapter's first section.</p> + + ... + + <a name="Intermediate Qt"> + <h1>Intermediate Qt</h1> + </a> + <p>This is the second part.</p> + + <a name="Layout Management"> + <h2>Layout Management</h2> + </a> + <p>This is the second part's first chapter.</p> + + <a name="Basic Layouts"> + <h3>Basic Layouts</h3> + </a> + <p>This is the first chapter's first section.</p> + + ... + + \endraw + \endquotation + + Each section is a logical unit in the document. The section + heading appears in the automatically generated table of contents + that normally appears in the upper righthand corner of the page. + + \target chapter-command + \section1 \\chapter + + The \\chapter command is intended for use in + larger documents, and divides the document into chapters. + + See \l{part} {\\part} for an explanation of the various + section units, command argument and rendering. + + \target sectionOne-command + \section1 \\section1 + + The \\section1 command starts a new section. + + See \l{part} {\\part} for an explanation of the various + section units, command argument and rendering. + + \target sectionTwo-command + \section1 \\section2 + + The \\section2 command starts a new section. + + See \l{part} {\\part} for an explanation of the various + section units, command argument and rendering. + + \target sectionThree-command + \section1 \\section3 + + The \\section3 command starts a new section. + + See \l{part} {\\part} for an explanation of the various + section units, command argument and rendering. + + \target sectionFour-command + \section1 \\section4 + + The \\section4 command starts a new section. + + See \l{part} {\\part} for an explanation of the various + section units, command argument and rendering. + +*/ + +/*! + \page 06-qdoc-commands-includecodeinline.html + \previouspage Document Structure + \contentspage Table of Contents + \nextpage Including External Code + + \title Including Code Inline + + The following commands are used to render source code without + formatting. The source code begins on a new line, rendered in the + code. + + \b{Note:} Although all these commands are for rendering C++ + code, the + \l{07-0-qdoc-commands-includingexternalcode.html#snippet-command} + {\\snippet} and + \l{07-0-qdoc-commands-includingexternalcode.html#codeline-command} + {\\codeline} commands are preferred over the others. These + commands allow equivalent code snippets for other Qt language + bindings to be substituted for the C++ snippets in the + documentation. + + \target code-command + \section1 \\code + + The \\code and \\endcode commands enclose a snippet of source code. + + \note The \l {c-command} {\\c} command can be used for short code + fragments within a sentence. The \\code command is for longer code + snippets. It renders the code verbatim in a separate paragraph in + the code font. + + When processing any of the \\code, \l {badcode-command} + {\\badcode}, \l {newcode-command} {\\newcode} or \l + {oldcode-command} {\\oldcode} commands, QDoc removes all + indentation that is common for the verbatim code blocks within a + \c{/}\c{*!} ... \c{*}\c{/} comment before it adds the standard + indentation. For that reason the recommended style is to use 8 + spaces for the verbatim code contained within these commands + + \note This doesn't apply to externally quoted code using the \l + {quotefromfile-command} {\\quotefromfile} or \l + {quotefile-command} {\\quotefile} command. + + \code + / *! + \code + #include <QApplication> + #include <QPushButton> + + int main(int argc, char *argv[]) + { + ... + } + \ endcode + * / + \endcode + + QDoc renders this as: + + \code + #include <QApplication> + #include <QPushButton> + + int main(int argc, char *argv[]) + { + ... + } + \endcode + + Other QDoc commands are disabled within \\code... \\endcode, and + the special character '\\' is accepted and rendered like the rest + of the code. + + To include code snippets from an external file, use the + \l{07-0-qdoc-commands-includingexternalcode.html#snippet-command} + {\\snippet} and + \l{07-0-qdoc-commands-includingexternalcode.html#codeline-command} + {\\codeline} commands. + + See also \l {c-command} {\\c}, \l + {07-0-qdoc-commands-includingexternalcode.html#quotefromfile-command} + {\\quotefromfile}, \l {badcode-command} {\\badcode}, \l + {newcode-command} {\\newcode} and \l {oldcode-command} + {\\oldcode}. + + \target badcode-command + \section1 \\badcode + + The \\badcode and \\endcode commands delimit a snippet of code + that doesn't compile or is wrong for some other reason. + + The \\badcode command is similar to the \l {code-command} {\\code} + command, but it renders the code snippet using a grey font instead + of black. + + Like the \l {code-command} {\\code} command, this command begins + its code snippet on a new line rendered in the code font and with + the standard indentation. + + \code + / *! + The statement below is rendered using the + regular \\code command: + + \code + statusbar()->message(tr("Host %1 found").arg(hostName)); + \ endcode + + While the following statement is rendered using + the \\badcode command: + + \badcode + statusbar()->message(tr("Host" + hostName + " found")); + \ endcode + * / + \endcode + + QDoc renders this as: + + \quotation + The statement below is rendered using the + regular \\code command: + + \code + statusbar()->message(tr("Host %1 found").arg(hostName)); + \endcode + + While the following statement is rendered using + the \\badcode command: + + \badcode + statusbar()->message(tr("Host" + hostName + " found")); + \endcode + \endquotation + + Other QDoc commands are disabled within \\badcode... \\endcode, + and the special character '\\' is accepted and rendered like the + rest of the code. + + See also \l {code-command} {\\code}, \l {newcode-command} + {\\newcode} and \l {oldcode-command} {\\oldcode}. + + \target newcode-command + \section1 \\newcode + + The \\newcode, \\oldcode, and \\endcode commands enable you to + show how to port a snippet of code to a new version of an API. + + The \\newcode command, and its companion the \\oldcode command, is + a convenience combination of the \l {code-command} {\\code} and \l + {badcode-command} {\\badcode} commands: The combination provides a + text relating the two code snippets to each other. The command + requires a preceding \\oldcode statement. + + Like the \l {code-command} {\\code} and \l {badcode-command} + {\\badcode} commands, the \\newcode command renders its code on a + new line in the documentation using a typewriter font and the + standard indentation. + + \code + / *! + \oldcode + if (printer->setup(parent)) + ... + \newcode + QPrintDialog dialog(printer, parent); + if (dialog.exec()) + ... + \ endcode + * / + \endcode + + QDoc renders this as: + + \quotation + \oldcode + if (printer->setup(parent)) + ... + \newcode + QPrintDialog dialog(printer, parent); + if (dialog.exec()) + ... + \endcode + \endquotation + + Other QDoc commands are disabled within \\oldcode ... \\endcode, + and the '\\' character doesn't need to be escaped. + + \target oldcode-command + \section1 \\oldcode + + The \\oldcode command requires a corresponding + \\newcode statement; otherwise QDoc fails to parse the command + and emits a warning. + + See also \l {newcode-command} {\\newcode} and \l {badcode-command} {\\badcode}. + + \target qml-command + \section1 \\qml + + The \\qml and \\endqml commands enclose a snippet of QML source + code. Currently, QDoc handles \\qml and \\endqml exactly the same + as \\code and \\endcode. + + \code + / *! + \qml + import QtQuick 1.0 + + Row { + Rectangle { + width: 100; height: 100 + color: "blue" + transform: Translate { y: 20 } + } + Rectangle { + width: 100; height: 100 + color: "red" + transform: Translate { y: -20 } + } + } + \endqml + * / + \endcode + + QDoc renders this as: + + \qml + import QtQuick 1.0 + + Row { + Rectangle { + width: 100; height: 100 + color: "blue" + transform: Translate { y: 20 } + } + Rectangle { + width: 100; height: 100 + color: "red" + transform: Translate { y: -20 } + } + } + \endqml +*/ + +/*! + \page 07-0-qdoc-commands-includingexternalcode.html + \previouspage Including Code Inline + \contentspage Table of Contents + \nextpage Creating Links + + \title Including External Code + + The following commands enable you to include code snippets from + external files. You can make QDoc include the complete contents of + a file, or you can quote specific parts of the file and skip + others. The typical use of the latter is to quote a file chunk by + chunk. + + \b{Note:} Although all these commands are for rendering C++ + code, the + \l{07-0-qdoc-commands-includingexternalcode.html#snippet-command} + {\\snippet} and + \l{07-0-qdoc-commands-includingexternalcode.html#codeline-command} + {\\codeline} commands are preferred over the others. These + commands allow equivalent code snippets for other Qt language + bindings to be substituted for the C++ snippets in the + documentation. + + \target quotefile-command + \section1 \\quotefile + + The \\quotefile command expands to the complete contents of the + file given as argument. + + The command considers the rest of the line as part of its + argument, make sure to follow the file name with a line break. + + The file's contents is rendered in a separate paragraph, using a + typewriter font and the standard indentation. The code is shown + verbatim. + + \code + / *! + This is a simple "Hello world" example: + + \quotefile examples/main.cpp + + It contains only the bare minimum you need + to get a Qt application up and running. + * / + \endcode + + QDoc renders this as: + + \quotation + This is a simple "Hello world" example: + + \quotefile examples/main.cpp + + It contains only the bare minimum you need to get a Qt + application up and running. + \endquotation + + See also \l {quotefromfile-command} {\\quotefromfile} and + \l {code-command} {\\code}. + + + \target quotefromfile-command + \section1 \\quotefromfile + + The \\quotefromfile command opens the file given as argument for + quoting. + + The command considers the rest of the line as part of its + argument, make sure to follow the file name with a line break. + + The command is intended for use when quoting parts from file with + the walkthrough commands: \l {printline-command} {\\printline}, \l + {printto-command} {\\printto}, \l {printuntil-command} + {\\printuntil}, \l {skipline-command} {\\skipline}, \l + {skipto-command} {\\skipto}, \l {skipuntil-command} + {\\skipuntil}. This enables you to quote specific portions of a + file. + + \code + / *! + The whole application is contained within + the \c main() function: + + \quotefromfile examples/main.cpp + + \skipto main + \printuntil app(argc, argv) + + First we create a QApplication object using + the \c argc and \c argv parameters. + + \skipto QPushButton + \printuntil resize + + Then we create a QPushButton, and give it a reasonable + size using the QWidget::resize() function. + + ... + * / + \endcode + + QDoc renders this as: + + \quotation + The whole application is contained within + the \c main() function: + + \quotefromfile examples/main.cpp + + \skipto main + \printuntil app(argc, argv) + + First we create a QApplication object using the \c argc + and \c argv parameters. + + \skipto QPushButton + \printuntil resize + + Then we create a QPushButton, and give it a reasonable + size using the QWidget::resize() function. + + ... + \endquotation + + (\l {Example File} {The complete example file...}) + + QDoc remembers which file it is quoting from, and the current + position in that file (see \l {file} {\\printline} for more + information). There is no need to "close" the file. + + See also \l {quotefile-command} {\\quotefile}, \l {code-command} + {\\code} and \l {dots} {\\dots}. + + \target printline-command + \section1 \\printline + + The \\printline command expands to the line from the current + position to the next non-blank line of the current souce file. + + To ensure that the documentation remains synchronized with the + source file, a substring of the line must be specified as an + argument to the command. Note that the command considers the rest + of the line as part of its argument, make sure to follow the + substring with a line break. + + The line from the source file is rendered as a separate paragraph, + using a typewriter font and the standard indentation. The code is + shown verbatim. + + \code + / *! + There has to be exactly one QApplication object + in every GUI application that uses Qt. + + \quotefromfile examples/main.cpp + + \printline QApplication + + This line includes the QApplication class + definition. QApplication manages various + application-wide resources, such as the + default font and cursor. + + \printline QPushButton + + This line includes the QPushButton class + definition. The QPushButton widget provides a command + button. + + \printline main + + The main function... + * / + \endcode + + QDoc renders this as: + + \quotation + There has to be exactly one QApplication object + in every GUI application that uses Qt. + + \quotefromfile examples/main.cpp + + \skipto QApplication + \printline QApplication + + This line includes the QApplication class + definition. QApplication manages various + application-wide resources, such as the + default font and cursor. + + \printline QPushButton + + This line includes the QPushButton class + definition. The QPushButton widget provides a command + button. + + \printline main + + The main function... + \endquotation + + (\l {Example File} {The complete example file...}) + + \target file + + QDoc reads the file sequentially. To move the current position + forward you can use either of the \l {skipline-command} + {\\skip...} commands. To move the current position backward, you + can use the \l {quotefromfile-command} {\\quotefromfile} command + again. + + \target substring + + If the substring argument is surrounded by slashes it is + interpreted as a \l {regular expression}. + + \code + / *! + \quotefromfile examples/mainwindow.cpp + + \skipto closeEvent + \printuntil /^\}/ + + Close events are sent to widgets that the users want to + close, usually by clicking \c File|Exit or by clicking + the \c X title bar button. By reimplementing the event + handler, we can intercept attempts to close the + application. + * / + \endcode + + QDoc renders this as: + + \quotation + \quotefromfile examples/mainwindow.cpp + + \skipto closeEvent + \printuntil /^\}/ + + Close events are sent to widgets that the users want to + close, usually by clicking \c File|Exit or by clicking + the \c X title bar button. By reimplementing the event + handler, we can intercept attempts to close the + application. + \endquotation + + (\l {widgets/scribble} {The complete example file...}) + + The regular expression \c /^\}/ makes QDoc print until the first + '}' character occurring at the beginning of the line without + indentation. /.../ encloses the regular expression, and '^' means + the beginning of the line. The '}' character must be escaped since + it is a special character in regular expressions. + + QDoc will emit a warning if the specified substring or regular + expression cannot be located, i.e. if the source code has changed. + + See also \l {printto-command} {\\printto} and \l + {printuntil-command} {\\printuntil}. + + \target printto-command + \section1 \\printto + + The \\printto command expands to all the lines from the current + position up to and \e excluding the next line containing a given + substring. + + The command considers the rest of the line as part of its + argument, make sure to follow the substring with a line break. The + command also follows the same conventions for \l {file} + {positioning} and \l {substring} {argument} as the \l + {printline-command} {\\printline} command. + + The lines from the source file are rendered in a separate + paragraph, using a typewriter font and the standard + indentation. The code is shown verbatim. + + \code + / *! + The whole application is contained within the + \c main() function: + + \quotefromfile examples/main.cpp + \printto hello + + First we create a QApplication object using the \c argc and + \c argv parameters... + * / + \endcode + + QDoc renders this as: + + \quotation + The whole application is contained within the + \c main() function: + + \quotefromfile examples/main.cpp + \skipto main + \printto hello + + First we create a QApplication object using the \c argc + and \c argv parameters... + \endquotation + + (\l {Example File} {The complete example file...}) + + See also \l {printline-command} {\\printline} and \l + {printuntil-command} {\\printuntil}. + + \target printuntil-command + \section1 \\printuntil + + The \\printuntil command expands to all the lines from the current + position up to and \e including the next line containing a given + substring. + + The command considers the rest of the line as part of its + argument, make sure to follow the substring with a line break. The + command also follows the same conventions for \l {file} + {positioning} and \l {substring} {argument} as the \l + {printline-command} {\\printline} command. + + The lines from the source file are rendered in a separate + paragraph, using a typewriter font and the standard + indentation. The code is shown verbatim. + + \code + / *! + The whole application is contained within the + \c main() function: + + \quotefromfile examples/main.cpp + \skipto main + \printuntil hello + + First we create a QApplication object using the + \c argc and \c argv parameters, then we create + a QPushButton. + * / + \endcode + + QDoc renders this as: + + \quotation + The whole application is contained within the + \c main() function: + + \quotefromfile examples/main.cpp + \skipto main + \printuntil hello + + First we create a \l + {http://qt.nokia.com/doc/4.0/qapplication} {QApplication} + object using the \c argc and \c argv parameters, then we + create a \l + {http://qt.nokia.com/doc/4.0/qpushbutton} {QPushButton}. + \endquotation + + (\l {Example File} {The complete example file...}) + + See also \l {printline-command} {\\printline} and \l + {printto-command} {\\printto}. + + \target skipline-command + \section1 \\skipline + + The \\skipline command ignores the next non-blank line in the + current source file. + + Doc reads the file sequentially, and the \\skipline command is + used to move the current position (omitting a line of the source + file). See the remark about \l {file} {file positioning} above. + + The command considers the rest of the line as part of its + argument, make sure to follow the substring with a line break. The + command also follows the same conventions for \l {substring} + {argument} as the \l {printline-command} {\\printline} command, + and it is used in conjunction with the \l {quotefromfile-command} + {\\quotefromfile} command. + + \code + / *! + QPushButton is a GUI push button that the user + can press and release. + + \quotefromfile examples/main.cpp + \skipline QApplication + \printline QPushButton + + This line includes the QPushButton class + definition. For each class that is part of the + public Qt API, there exists a header file of + the same name that contains its definition. + * / + \endcode + + QDoc renders this as: + + \quotation + \l + QPushButton is a GUI push button that the user + can press and release. + + \quotefromfile examples/main.cpp + \skipto QApplication + \skipline QApplication + \printline QPushButton + + This line includes the QPushButton class + definition. For each class that is part of the public + Qt API, there exists a header file of the same name + that contains its definition. + \endquotation + + (\l {Example File} {The complete example file...}) + + See also \l {skipto-command} {\\skipto}, \l {skipuntil-command} + {\\skipuntil} and \l {dots} {\\dots}. + + \target skipto-command + \section1 \\skipto + + The \\skipto command ignores all the lines from the current + position up to and \e excluding the next line containing a given + substring. + + QDoc reads the file sequentially, and the \\skipto command is used + to move the current position (omitting one or several lines of the + source file). See the remark about \l {file} {file positioning} + above. + + The command considers the rest of the line as part of its + argument, make sure to follow the substring with a line break. + + The command also follows the same conventions for \l {substring} + {argument} as the \l {printline-command} {\\printline} command, + and it is used in conjunction with the \l {quotefromfile-command} + {\\quotefromfile} command. + + \code + / *! + The whole application is contained within + the \c main() function: + + \quotefromfile examples/main.cpp + \skipto main + \printuntil } + + First we create a QApplication object. There + has to be exactly one such object in + every GUI application that uses Qt. Then + we create a QPushButton, resize it to a reasonable + size... + * / + \endcode + + QDoc renders this as: + + \quotation + The whole application is contained within + the \c main() function: + + \quotefromfile examples/main.cpp + \skipto main + \printuntil } + + First we create a QApplication object. There has to be + exactly one such object in every GUI application that + uses Qt. Then we create a QPushButton, resize it to a + reasonable size ... + \endquotation + + (\l {Example File} {The complete example file...}) + + See also \l {skipline-command} {\\skipline}, \l + {skipuntil-command} {\\skipuntil} and \l {dots} {\\dots}. + + \target skipuntil-command + \section1 \\skipuntil + + The \\skipuntil command ignores all the lines from the current + position up to and \e including the next line containing a given + substring. + + QDoc reads the file sequentially, and the \\skipuntil command is + used to move the current position (omitting one or several lines + of the source file). See the remark about \l {file} {file + positioning} above. + + The command considers the rest of the line as part of its + argument, make sure to follow the substring with a line break. + + The command also follows the same conventions for \l {substring} + {argument} as the \l {printline-command} {\\printline} command, + and it is used in conjunction with the \l {quotefromfile-command} + {\\quotefromfile} command. + + \code + / *! + The first thing we did in the \c main() function + was to create a QApplication object \c app. + + \quotefromfile examples/main.cpp + \skipuntil show + \dots + \printuntil } + + In the end we must remember to make \c main() pass the + control to Qt. QCoreApplication::exec() will return when + the application exits... + * / + \endcode + + QDoc renders this as: + + \quotation + The first thing we did in the \c main() function was to + create a QApplication object \c app. + + \quotefromfile examples/main.cpp + \skipuntil show + \dots + \printuntil } + + In the end we must remember to make \c main() pass the + control to Qt. QCoreApplication::exec() + will return when the application exits... + \endquotation + + (\l {Example File} {The complete example file...}) + + See also \l {skipline-command} {\\skipline}, \l {skipto-command} + {\\skipto} and \l {dots} {\\dots}. + + \target dots-command + \section1 \\dots + + The \\dots command indicates that parts of the source file have + been omitted when quoting a file. + + The command is used in conjunction with the \l + {quotefromfile-command} {\\quotefromfile} command, and should be + stated on its own line. The dots are rendered on a new line, using + a typewriter font. + + \code + / *! + \quotefromfile examples/main.cpp + \skipto main + \printuntil { + \dots + \skipuntil exec + \printline } + * / + \endcode + + QDoc renders this as: + + \quotefromfile examples/main.cpp + \skipto main + \printuntil { + \dots + \skipuntil exec + \printline } + + (\l {Example File} {The complete example file...}) + + The default indentation is 4 spaces, but this can be adjusted + using the command's optional argument. + + \code + / *! + \dots 0 + \dots + \dots 8 + \dots 12 + \dots 16 + * / + \endcode + + QDoc renders this as: + + \dots 0 + \dots + \dots 8 + \dots 12 + \dots 16 + + See also \l {skipline-command} {\\skipline}, \l {skipto-command} + {\\skipto} and \l {skipuntil-command} {\\skipuntil}. + + \target snippet-command + \section1 \\snippet + + The \\snippet command causes a code snippet to be included + verbatim as preformatted text, which may be syntax highlighted. + + Each code snippet are referenced by the file that holds it and by + a unique identifier for that file. Snippet files are typically + stored in a \c{snippets} directory inside the documentation + directory (e.g., \c{$QTDIR/doc/src/snippets}). + + For example, the following documentation references a snippet in a + file residing in a subdirectory of the documentation directory: + + \code + \snippet snippets/textdocument-resources/main.cpp Adding a resource + \endcode + + The text following the file name is the unique identifier for the + snippet. This is used to delimit the quoted code in the relevant + snippet file as shown in the following example that corresponds to + the above \c{\\snippet} command: + + \dots + \code + QImage image(64, 64, QImage::Format_RGB32); + image.fill(qRgb(255, 160, 128)); + + //! [Adding a resource] + document->addResource(QTextDocument::ImageResource, + QUrl("mydata://image.png"), QVariant(image)); + //! [Adding a resource] + \endcode + \dots + + \target codeline-command + \section1 \\codeline + + The \\codeline command inserts a blank line of preformatted + text. It is used to insert gaps between snippets without closing + the current preformatted text area and opening a new one. + +*/ + +/*! + \page 07-1-example.html + \previouspage Including External Code + \contentspage Table of Contents + + \title Example File + + \quotefile examples/main.cpp +*/ + +/*! + \page 08-qdoc-commands-creatinglinks.html + \previouspage Including External Code + \contentspage Table of Contents + \nextpage Including Images + + \title Creating Links + + These commands are for creating hyperlinks to classes, functions, + examples, and other targets. + + \target l-command + \section1 \\l (link) + + The \\l link command is used to create a hyperlink to many + different kinds of targets. The command's general syntax is: + + \code + \l {link target} {link text} + \endcode + + \code + / *! + Read the \l {http://qt.nokia.com/doc/4.0/} + {Qt's Reference Documentation} carefully. + * / + \endcode + + QDoc renders this as: + + \quotation + Read the \l {http://qt.nokia.com/doc/4.0/} + {Qt's Reference Documentation} carefully. + \endquotation + + If the link target is equivalent to the link text, the second + argument can be omitted. + + For example, if you have documentation like: + + \code + / *! + \target assertions + + Assertions make some statement about the text at the + point where they occur in the regexp but they do not + match any characters. + + ... + + Regexps are built up from expressions, quantifiers, and + \l {assertions} {assertions}. + * / + \endcode + + You can simplify this as follows: + + \code + / *! + \target assertions + + Assertions make some statement about the text at the + point where they occur in the regexp but they do not + match any characters. + + ... + + Regexps are built up from expressions, quantifiers, and + \l assertions. + * / + \endcode + + For the one-parameter version the braces can often be omitted. + The \\l command supports several kinds of links: + + \list + + \li \c {\l QWidget} - The name of a class documented with the \l + {class-command} {\\class} command. + + \li \c {\l QWidget::sizeHint()} - The name of a member function, + documented with or without an \l {fn-command} {\\fn} command. + + \li \c {\l <QtGlobal>} - The subject of a \l {headerfile-command} + {\\headerfile} command. + + \li \c {\l widgets/wiggly} - The relative path used in an \l + {example-command} {\\example} command. + + \li \c {\l {QWidget Class Reference}} - The title used in a + \l {title-command} {\\title} command. + + \li \c {\l {Introduction to QDoc}}- The text from one of the + \l{part-command} {\\part}, \l{chapter} {\\chapter} or \l + {sectionOne-command} {\\section} commands. + + \li \c {\l fontmatching} - The argument of a \l {target-command} + {\\target} command. + + \li \c {\l {Shared Classes}} - A keyword named in a \l + {keyword-command} {\\keyword} command. + + \li \c {\l network.html} - The file name used in a \l + {page-command} {\\page} command. + + \li \c {\l http://qt.nokia.com/} - A URL. + + \endlist + + QDoc also tries to make a link out of any words that don't + resemble any normal English words, for example Qt class names or + functions, like QWidget or QWidget::sizeHint(). In these cases, + the \\l command can actually be omitted, but by using the command, + you ensure that QDoc will emit a warning if it cannot find the + link target. In addition, if you only want the function name to + appear in the link, you can use the following syntax: + + \list + \li \c {\l {QWidget::} {sizeHint()}} + \endlist + + QDoc renders this as: + + \quotation + \l {QWidget::} {sizeHint()} + \endquotation + + See also \l {sa-command} {\\sa}, \l {target-command} {\\target} + and \l {keyword-command} {\\keyword}. + + + \target sa-command + \section1 \\sa (see also) + + The \\sa command defines a list of links that will be rendered in + a separate "See also" section at the bottom of the documentation + unit. + + The command takes a comma-separated list of links as its + argument. If the line ends with a comma, you can continue + the list on the next line. The general syntax is: + + \code + \sa {the first link}, {the second link}, + {the third link}, ... + \endcode + + QDoc will automatically try to generate "See also" links + interconnecting a property's various functions. For example, a + setVisible() function will automatically get a link to visible() + and vice versa. + + In general, QDoc will generate "See also" links that interconnect + the functions that access the same property. It recognizes four + different syntax versions: + + \list + \li \c property() + \li \c setProperty() + \li \c isProperty() + \li \c hasProperty() + \endlist + + The \\sa command supports the same kind of links as the \l + {l-command} {\\l} command. + + \code + / *! + Appends the actions \a actions to this widget's + list of actions. + + \sa removeAction(), QMenu, addAction() + * / + void QWidget::addActions(QList<QAction *> actions) + { + ... + } + \endcode + + QDoc renders this as: + + \quotation + \b {void QWidget::addActions ( QList<QAction*> + \e actions )} + + Appends the actions \e actions to this widget's list of + actions. + + See also \l {QWidget::removeAction()} {removeAction()}, + \l QMenu, and \l {QWidget::addAction()} {addAction()}. + \endquotation + + See also \l {l-command} {\\l}, \l {target-command} {\\target} and + \l {keyword-command} {\\keyword}. + + + \target target-command + \section1 \\target + + The \\target command names a place in the documentation that you + can link to using the \l {l-command} {\\l (link)} and \l + {sa-command} {\\sa (see also)} commands. + + The text up to the line break becomes the target name. Be sure to + follow the target name with a line break. Curly brackets are not + required around the target name, but they may be required when the + target name is used in a link cammand. See below. + + \code + / *! + \target capturing parentheses + \section1 Capturing Text + + Parentheses allow us to group elements together so that + we can quantify and capture them. + + ... + * / + \endcode + + The target name \e{capturing parentheses} can be linked from + within the same document containing the target in two ways: + + \list + \li \c {\l {capturing parentheses}} (from within the same qdoc comment) + \li \c {\l qregexp.html#capturing-parentheses} (from elsewhere in the same document) + \endlist + + \note The brackets in the link example are required because the + target name contains spaces. + + From other documents, the target name can be linked this way: + + \list + \li \c {\l http://doc.qt.nokia.com/4.0/qregexp.html#capturing-parentheses} + \endlist + + See also \l {l-command} {\\l}, \l {sa-command} {\\sa} and \l + {keyword-command} {\\keyword}. + + \target keyword-command + \section1 \\keyword + + The \\keyword command names a place in the documentation that you + can link to using the \l {l-command} {\\l (link)} and \l + {sa-command} {\\sa (see also)} commands. + + The \\keyword command is like the \l {target-command} {\\target} + command, but stronger. A keyword can be linked from anywhere using + a simple syntax. + + Keywords must be unique over all the documents processed during + the QDoc run. The command uses the rest of the line as its + argument. Be sure to follow the keyword with a line break. + + + \code + / *! + \class QRegExp + \reentrant + \brief The QRegExp class provides pattern + matching using regular expressions. + \ingroup tools + \ingroup misc + \ingroup shared + \mainclass + + \keyword regular expression + + Regular expressions, or "regexps", provide a way to + find patterns within text. + + ... + * / + \endcode + + The location marked with the keyword can be linked with: + + \code + / *! + When a string is surrounded by slashes, it is + interpreted as a \l {regular expression}. + * / + \endcode + + QDoc renders this as: + + \quotation + When a string is surrounded by slashes, it's + interpreted as a \l {regular expression}. + \endquotation + + If the keyword text contains spaces, the brackets are required. + + See also \l {l-command} {\\l (link)}, \l {sa-command} {\\sa (see + also)} and \l {target-command} {\\target}. + +*/ + +/*! + \page 09-qdoc-commands-includingimages.html + \previouspage Creating Links + \contentspage Table of Contents + \nextpage Tables and Lists + + \title Including Images + + The graphic commands makes it possible to include images in the + documentation. The images can be rendered as separate paragraphs, + or within running text. + + \target image-command + \section1 \\image + + The \\image command expands to the image specified by its first + argument, and renders it centered as a separate paragraph. + + The command takes two arguments. The first argument is the name of + the image file. The second argument is optional and is a simple + description of the image, equivalent to the HTML alt="" in an image + tag. The description is used for tooltips, and for when a browser + doesn't support images, like the Lynx text browser. + + The remaining text \e{after} the file name is the optional, + description argument. Be sure to follow the file name or the + description with a line break. Curly brackets are required if the + description argument spans multiple lines. + + \code + / *! + Qt is a C++ toolkit for cross-platform GUI application development. + + \image happyguy.jpg "Happy guy" + + Qt provides single-source portability across Microsoft + Windows, Mac OS X, Linux, and all major commercial Unix + variants. It is also available for embedded devices. + * / + \endcode + + QDoc renders this as: + + \quotation + Qt is a C++ toolkit for cross-platform GUI application development. + + \image happyguy.jpg image "Happy guy" + + Qt provides single-source portability across Microsoft + Windows, Mac OS X, Linux, and all major commercial Unix + variants. It is also available for embedded devices. + \endquotation + + See also \l {inlineimage-command} {\\inlineimage} and \l + {caption-command} {\\caption}. + + \target inlineimage-command + \section1 \\inlineimage + + The \\inlineimage command expands to the image specified by its + argument. The image is rendered inline with the rest of the text. + + The command takes two arguments. The first argument is the name of + the image file. The second argument is optional and is a simple + description of the image, equivalent to the HTML alt="" in an image + tag. The description is used for tooltips, and for when a browser + doesn't support images, like the Lynx text browser. + + The most common use of the \\inlineimage command is in lists and + tables. Here is an example of including inline images in a list: + + \code + / *! + \list 1 + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \endlist + * / + \endcode + + QDoc renders this as: + + \list 1 + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \endlist + + Here is an example of including inline images in a table: + + \code + / *! + \table + \header + \li Qt + \li Qt Creator + \row + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \row + \li \inlineimage happy.gif Oh so happy! + \li \inlineimage happy.gif Oh so happy! + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + <tr valign="top" bgcolor="#a2c511"> + <th>Qt</th> + <th>Qt Creator</th> + </tr> + <tr valign="top" bgcolor="#f0f0f0"> + <td><img src="images/happy.gif" alt="Oh so happy!" /> + </td> + <td><img src="images/happy.gif" alt="Oh so happy!" /> + </td> + </tr> + <tr valign="top" bgcolor="#f0f0f0"> + <td><img src="images/happy.gif" alt="Oh so happy!"/> + </td> + <td><img src="images/happy.gif" alt="Oh so happy!" /> + </td> + </tr> + </table> + \endraw + + The command can also be used to insert an image inline with the + text. + + \code + / *! + \inlineimage training.jpg Qt Training + The Qt Programming course is offered as a + five day Open Enrollment Course. The classes + are open to the public. While the course is open + to anyone who wants to learn, attendees should + have significant experience in C++ development + to derive maximum benefit from the course. + * / + \endcode + + QDoc renders this as: + + \quotation + \inlineimage training.jpg Qt Training + The Qt Programming course is offered as a + five day Open Enrollment Course. The classes + are open to the public. While the course is open + to anyone who wants to learn, attendees should + have significant experience in C++ development + to derive maximum benefit from the course. + \endquotation + + See also \l {image-command} {\\image} and \l {caption-command} {\\caption}. + + \target caption-command + \section1 \\caption + + The \\caption command provides a caption for an image. + + The command takes all the text up to the end of the paragraph to + be the caption. Experiment until you get the effect you want. + + \code + / *! + \table 100% + \row + \li \image windowsvista-pushbutton.png + \caption The QPushButton widget provides a command button. + \li \image windowsvista-toolbutton.png + \caption The QToolButton class provides a quick-access button to commands + or options, usually used inside a QToolBar. + \endtable + * / + \endcode + + QDoc renders this as: + + \table 100% + \row + \li \image windowsvista-pushbutton.png + \caption The QPushButton widget provides a command button. + \li \image windowsvista-toolbutton.png + \caption The QToolButton class provides a quick-access button to commands + or options, usually used inside a QToolBar. + \endtable + + See also \l {image-command} {\\image} and \l {inlineimage-command} + {\\inlineimage} +*/ + +/*! + \page 10-qdoc-commands-tablesandlists.html + \previouspage Including Images + \contentspage Table of Contents + \nextpage Special Content + + \title Tables and Lists + + These commands enable creating lists and tables. A list is + rendered left aligned as a separate paragraph. A table is rendered + centered as a separate paragraph. The table width depends on the + width of its contents. + + \target table-command + \section1 \\table + + The \\table and \\endtable commands delimit the contents of a + table. + + The command accepts a single argument specifying the table's width + as a percentage of the page width: + + \code + / *! + \table 100 % + + ... + + \endtable + * / + \endcode + + The code above ensures that the table will fill all available + space. If the table's width is smaller than 100 %, the table will + be centered in the generated documentation. + + A table can contain headers, rows and columns. A row starts with a + \l {row-command} {\\row} command and consists of cells, each of which + starts with an \l {li-command} {\\li} command. There is also a \l + {header-command} {\\header} command which is a special kind of row + that has a special format. + + \code + / *! + \table + \header + \li Qt Core Feature + \li Brief Description + \row + \li \l {Signal and Slots} + \li Signals and slots are used for communication + between objects. + \row + \li \l {Layout Management} + \li The Qt layout system provides a simple + and powerful way of specifying the layout + of child widgets. + \row + \li \l {Drag and Drop} + \li Drag and drop provides a simple visual + mechanism which users can use to transfer + information between and within applications. + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + <tr valign="top" bgcolor="#a2c511"> + <th>Qt Core Feature</th> + <th>Brief Description</th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td> + <a href="http://qt.nokia.com/doc/4.0/signalsandslots.html"> + Signals and Slots</a> + </td> + <td>Signals and slots are used for communication + between objects.</td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td> + <a href=http://qt.nokia.com/doc/4.0/layout.html"> + Layout Management</a></td> + <td>The Qt layout system provides a simple + and powerful way of specifying the layout + of child widgets.</td> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td> + <a href=http://qt.nokia.com/doc/4.0/dnd.html"> + Drag and Drop</a></td> + <td>Drag and drop provides a simple visual + mechanism which users can use to transfer + information between and within applications.</td> + </tr> + + </table> + \endraw + + You can also make cells span several rows and columns. For + example: + + \code + / *! + \table + \header + \li {3,1} This header cell spans three columns + but only one row. + \row + \li {2, 1} This table cell spans two columns + but only one row + \li {1, 2} This table cell spans only one column, + but two rows. + \row + \li A regular table cell + \li A regular table cell + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" cellspacing="1" + border="0"> + + <tr valign="top" bgcolor="#a2c511"> + <th colspan="3" rowspan=" 1"> + This header cell spans three columns but only one row + </th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td colspan="2" rowspan=" 1"> + This table cell spans two columns but only one row + </td> + <td rowspan=" 2"> + This table cell spans only one column, but two rows. + </td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td>A regular table cell</td> + <td>A regular table cell</td> + </tr> + + </table> + \endraw + + See also \l {header-command} {\\header}, \l {row-command} {\\row} and \l {li-command} {\\li}. + + \target header-command + \section1 \\header + + The \\header command indicates that the following table cells are + the current table's column headers. + + The command can only be used within the \l{table-command} + {\\table...\\endtable} commands. A header can contain several + cells. A cell is created with the \l {li-command} {\\li} command. + + A header cell's text is centered within the table cell and + rendered using a bold font. + + \code + / *! + \table + \header + \li Qt Core Feature + \li Brief Description + \row + \li \l {Signal and Slots} + \li Signals and slots are used for communication + between objects. + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + <tr valign="top" bgcolor="#a2c511"> + <th>Qt Core Feature</th> + <th>Brief Description</th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td> + <a href="http://qt.nokia.com/doc/4.0/signalsandslots.html"> + Signals and Slots</a> + </td> + <td>Signals and slots are used for communication + between objects.</td> + </tr> + </table> + \endraw + + See also \l {table-command} {\\table}, \l {row-command} {\\row} and \l {li-command} {\\li}. + + \target row-command + \section1 \\row + + The \\row command begins a new row in a table. The \l {li-command} + {\\li items} that belong in the new row will immediately follow the + \\row. + + The command can only be used within the \l{table-command} + {\\table...\\endtable} commands. A row can contain several + cells. A cell is created with the \l {li-command} {\\li} command. + + The background cell color of each row alternates between two + shades of grey, making it easier to distinguish the rows from each + other. The cells' contents is left aligned. + + \code + / *! + \table + \header + \li Qt Core Feature + \li Brief Description + \row + \li \l {Signal and Slots} + \li Signals and slots are used for communication + between objects. + \row + \li \l {Layout Management} + \li The Qt layout system provides a simple + and powerful way of specifying the layout + of child widgets. + \row + \li \l {Drag and Drop} + \li Drag and drop provides a simple visual + mechanism which users can use to transfer + information between and within applications. + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + <tr valign="top" bgcolor="#a2c511"> + <th>Qt Core Feature</th> + <th>Brief Description</th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td> + <a href="http://qt.nokia.com/doc/4.0/signalsandslots.html"> + Signals and Slots</a> + </td> + <td>Signals and slots are used for communication + between objects.</td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td> + <a href=http://qt.nokia.com/doc/4.0/layout.html"> + Layout Management</a></td> + <td>The Qt layout system provides a simple + and powerful way of specifying the layout + of child widgets.</td> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td> + <a href=http://qt.nokia.com/doc/4.0/dnd.html"> + Drag and Drop</a></td> + <td>Drag and drop provides a simple visual + mechanism which users can use to transfer + information between and within applications.</td> + </tr> + + </table> + \endraw + + See also \l {table-command} {\\table}, \l {header-command} + {\\header} and \l {li-command} {\\li}. + + \target value-command + \section1 \\value + + The \\value command starts the documentation of a C++ enum item. + + The command's first argument is the enum item. Then follows its + associated description. The description argument ends at the next + blank line or \\value. The arguments are rendered within a table. + + The documentation will be located in the associated class, header + file or namespace documentation. See the \l {enum-command} + {\\enum} documentation for an example. + + See also \l {enum-command} {\\enum} and \l {omitvalue-command} {\\omitvalue}. + + \target omitvalue-command + \section1 \\omitvalue + + The \\omitvalue command excludes a C++ enum item from the + documentation. + + The command's only argument is the name of the enum item that will + be omitted. See the \l {enum-command} {\\enum} documentation for + an example. + + See also \l {enum-command} {\\enum} and \l {value-command} + {\\value}. + + \target list-command + \section1 \\list + + The \\list and \\endlist commands delimit a list of items. + + Create each list item with the \l {li-command} {\\li} command. A + list always contains one or more items. Lists can be nested. For + example: + + \code + / *! + \list + \li Qt Reference Documentation: Getting Started + \list + \li How to Learn Qt + \li Installation + \list + \li Qt/X11 + \li Qt/Windows + \li Qt/Mac + \li Qt/Embedded + \endlist + \li Tutorial and Examples + \endlist + \endlist + * / + \endcode + + QDoc renders this as: + + \list + \li Qt Reference Documentation: Getting Started + \list + \li How to Learn Qt + \li Installation + \list + \li Qt/X11 + \li Qt/Windows + \li Qt/Mac + \li Qt/Embedded + \endlist + \li Tutorial and Examples + \endlist + \endlist + + The \\list command takes an optional argument providing + alternative appearances for the list items. + + \code + / *! + \list + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + * / + \endcode + + QDoc renders the list items with bullets (the default): + + \list + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + + \warning There appears to be a bug in qdoc3 here. If you include + any of the argument types, you get a numeric list. We're looking + into it. + + If you provide 'A' as an argument to the \\list command, the + bullets are replaced with characters in alphabetical order: + + \list A + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + + If you replace 'A' with '1', the list items are numbered in + ascending order: + + \list 1 + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + + \endlist + + If you provide 'i' as the argument, the bullets are replaced with + roman numerals: + + \list i + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + + Finally, you can make the list items appear with roman numbers + following in ascending order if you provide 'I' as the optional + argument: + + \list I + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + + You can also make the listing start at any character or number by + simply provide the number or character you want to start at. For + example: + + \code + / *! + \list G + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + * / + \endcode + + QDoc renders this as: + + \list G + \li How to Learn Qt + \li Installation + \li Tutorial and Examples + \endlist + + See also \l {li-command} {\\li}. + + \target li-command + \section1 \\li (table cell, list item) + + The \\li command marks a table cell or a list item. This command + is only used in \l{table-command} {tables} and \l{list-command} + {lists}. + + It considers everything until the next \\li command, or until the + next \l {table-command} {\\endtable} or \l {list-command} {\\endlist} + command, as its argument. See \l {table-command} {\\table} and \l + {list-command} {\\list} for examples. + + If the command is used within a table, you can also specify + how many rows or columns the item should span. + + \code + / *! + \table + \header + \li {3,1} This header cell spans three columns + but only one row. + \row + \li {2, 1} This table item spans two columns + but only one row + \li {1, 2} This table item spans only one column, + but two rows. + \row + \li A regular table item + \li A regular table item + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" cellspacing="1" + border="0"> + + <tr valign="top" bgcolor="#a2c511"> + <th colspan="3" rowspan=" 1"> + This header cell spans three columns but only one row + </th> + </tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td colspan="2" rowspan=" 1"> + This table item spans two columns but only one row + </td> + <td rowspan=" 2"> + This table item spans only one column, but two rows. + </td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td>A regular table item</td> + <td>A regular table item</td> + </tr> + + </table> + \endraw + + If not specified, the item will span one column and one row. + + See also \l {table-command} {\\table}, \l {header-command} + {\\header}, and \l {list-command} {\\list}. + +*/ + +/*! + \page 11-qdoc-commands-specialcontent.html + \previouspage Tables and Lists + \contentspage Table of Contents + \nextpage Miscellaneous + + \title Special Content + + The document contents commands identify parts of the documentation, + i.e. parts with a special rendering, conceptual meaning or + function. + + \target abstract-command + \section1 \\abstract + + The \\abstract and \\endabstract commands delimit a + document's abstract section. + + The abstract section is rendered as an indented italicized + paragraph. + + \warning The \b{\\abstract} and \b{\\endabstract} commands + have not been implemented. The abstract section is rendered as a + regular HTML paragraph. + + \target quotation-command + \section1 \\quotation + + The \\quotation and \\endquotation commands delimit a long quotation. + + The text in the delimited block is surrounded by + \b{<blockquote>} and \b{</blockquote>} in the html output, + e.g.: + + \code + / *! + While the prospect of a significantly broader market is + good news for Firstlogic, the notion also posed some + challenges. Dave Dobson, director of technology for the La + Crosse, Wisconsin-based company, said: + + \quotation + As our solutions were being adopted into new + environments, we saw an escalating need for easier + integration with a wider range of enterprise + applications. + \endquotation + * / + \endcode + + The text in the \b{\\quotation} block will appear in the generated HTML as: + + \code + <blockquote> + <p>As our solutions were being adopted into new environments, + we saw an escalating need for easier integration with a wider + range of enterprise applications.</p> + </blockquote> + \endcode + + The built-in style sheet for most browsers will render the + contents of the <blockquote> tag with left and right + indentations. The example above would be rendered as: + + \quotation + As our solutions were being adopted into new + environments, we saw an escalating need for easier + integration with a wider range of enterprise + applications. + \endquotation + + But you can redefine the \b{<blockquote>} tag in your style.css file. + + \target footnote-command + \section1 \\footnote + + The \\footnote and \\endfootnote commands delimit a footnote. + + The footnote is rendered at the bottom of the page. + + \warning The \b{\\footnote} and \b{\\endfootnote} commands + have not been implemented. The footnote is rendered as a regular + HTML paragraph. + + \target tableofcontents-command + \section1 \\tableofcontents + + The \\tableofcontents command has been disabled because QDoc + now generates a table of contents automatically. + + The automatically generated table of contents appears in the upper + righthand corner of the page. + + \target brief-command + \section1 \\brief + + The \\brief command introduces a one-sentence description of a + class, namespace, header file, property or variable. + + The brief text is used to introduce the documentation of the + associated object, and in lists generated using the \l + {generatelist-command} {\\generatelist} command and the \l + {annotatedlist-command} {\\annotatedlist} command. + + The \\brief command can be used in two significant different ways: + \l {brief class} {One for classes, namespaces and header files}, + and \l {brief-property} {one for properties and variables}. + + \target brief-property + + When the \\brief command is used to describe a property or a + variable, the brief text must be a sentence fragment starting with + "whether" (for a boolean property or variable) or starting with + "the" (for any other property or variable). + + For example the boolean QWidget::isWindow property: + + \code + / *! + \property QWidget::isActiveWindow + \brief whether this widget's window is the active window + + The active window is the window that contains the widget that + has keyboard focus. + + When popup windows are visible, this property is true + for both the active window \e and for the popup. + + \sa activateWindow(), QApplication::activeWindow() + * / + \endcode + + and the QWidget::geometry property + + \code + / *! + \property QWidget::geometry + \brief the geometry of the widget relative to its parent and + excluding the window frame + + When changing the geometry, the widget, if visible, + receives a move event (moveEvent()) and/or a resize + event (resizeEvent()) immediately. + + ... + + \sa frameGeometry(), rect(), ... + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h3>geometry : + <a href="http://qt.nokia.com/doc/4.0/qrect.html">QRect</a> + </h3> + \endraw + + This property holds the geometry of the widget relative + to its parent and excluding the window frame. + + ... + + Access functions: + \list + \li \b {const QRect & geometry () const} + \li \b {void setGeometry ( int x, int y, int w, int h )} + \li \b {void setGeometry ( const QRect & )} + \endlist + + See also \l + {QWidget::frameGeometry()} {frameGeometry()}, \l + {QWidget::rect()} {rect()}, ... + \endquotation + + \target brief class + + When the \\brief command is used to describe a class, the brief + text should be a complete sentence and must start like this: + + \code + The <classname> class is|provides|contains|specifies... + \endcode + + \warning The brief statement is used as the first paragraph of the + detailed description. Do not repeat the sentence. + + \code + / *! + \class PreviewWindow + \brief The PreviewWindow class is a custom widget + displaying the names of its currently set + window flags in a read-only text editor. + + The PreviewWindow class inherits QWidget. The widget + displays the names of its window flags set with the + setWindowFlags() function. It is also provided with a + QPushButton that closes the window. + + ... + + \sa QWidget + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h1>PreviewWindow Class Reference</h1> + \endraw + + The PreviewWindow class is a custom widget displaying + the names of its currently set window flags in a + read-only text editor. \l {preview window} {More...} + + \raw HTML + <h3>Properties</h3> + \endraw + + \list + \li 52 properties inherited from QWidget + \li 1 property inherited from QObject + \endlist + + \raw HTML + <h3>Public Functions</h3> + \endraw + + \list + \li \l {constructor} {PreviewWindow}(QWidget *parent = 0) + \li void \l {function} {setWindowFlags}(Qt::WindowFlags flags) + \endlist + + \list + \li 183 public functions inherited from QWidget + \li 28 public functions inherited from QObject + \endlist + + \raw HTML + <h3>Public Slots</h3> + \endraw + + \list + \li 17 public slots inherited from QWidget + \li 1 public slot inherited from QObject + \endlist + + \raw HTML + <h3>Additional Inherited Members</h3> + \endraw + + \list + \li 1 signal inherited from QWidget + \li 1 signal inherited from QObject + \li 4 static public members inherited from QWidget + \li 4 static public members inherited from QObject + \li 39 protected functions inherited from QWidget + \li 7 protected functions inherited from QObject + \endlist + + \target preview window + + \raw HTML + <hr /> + <h2>Detailed Description</h2> + \endraw + + The PreviewWindow class is a custom widget displaying + the names of its currently set window flags in a + read-only text editor. + + The PreviewWindow class inherits QWidget. The widget + displays the names of its window flags set with the \l + {function} {setWindowFlags()} function. It is also + provided with a QPushButton that closes the window. + + ... + + See also QWidget. + + \raw HTML + <hr /> + <h2>Member Function Documentation</h2> + \endraw + + \target constructor + \raw HTML + <h3>PreviewWindow(QWidget *parent = 0)</h3> + \endraw + + Constructs a preview window widget with \e parent. + + \target function + \raw HTML + <h3>setWindowFlags(Qt::WindowFlags flags)</h3> + \endraw + + Sets the widgets flags using the + QWidget::setWindowFlags() function. + + Then runs through the available window flags, + creating a text that contains the names of the flags + that matches the flags parameter, displaying + the text in the widgets text editor. + \endquotation + + Using \\brief in a \l{namespace-command}{\\namespace}: + + \code + / *! + \namespace Qt + + \brief The Qt namespace contains miscellaneous identifiers + used throughout the Qt library. + * / + \endcode + + Using \\brief in a \l{headerfile-command}{\\headerfile}: + + \code + / *! + \headerfile <QtGlobal> + \title Global Qt Declarations + + \brief The <QtGlobal> header file provides basic + declarations and is included by all other Qt headers. + + \sa <QtAlgorithms> + * / + \endcode + + See also \l{property-command} {\\property}, \l{class-command} + {\\class}, \l{namespace-command} {\\namespace} and + \l{headerfile-command} {\\headerfile}. + + \target legalese-command + \section1 \\legalese + + The \\legalese and \\endlegalese commands delimit a licence agreement. + + In the generated HTML, the delimited text is surrounded by a \b + {<div class="LegaleseLeft">} and \b {</div>} tags. + + For example, here is a license agreement enclosed in \\legalese + and \\endlegalese: + + \code + / *! + \legalese + Copyright 1996 Daniel Dardailler. + + Permission to use, copy, modify, distribute, and sell this + software for any purpose is hereby granted without fee, + provided that the above copyright notice appear in all + copies and that both that copyright notice and this + permission notice appear in supporting documentation, and + that the name of Daniel Dardailler not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. Daniel + Dardailler makes no representations about the suitability of + this software for any purpose. It is provided "as is" + without express or implied warranty. + + Modifications Copyright 1999 Matt Koss, under the same + license as above. + \endlegalese + * / + \endcode + + It will appear in the generated HTML as: + + \code + <div class="LegaleseLeft"> + <p>Copyright 1996 Daniel Dardailler.</p> + <p>Permission to use, copy, modify, distribute, and sell + this software for any purpose is hereby granted without fee, + provided that the above copyright notice appear in all + copies and that both that copyright notice and this + permission notice appear in supporting documentation, and + that the name of Daniel Dardailler not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. Daniel + Dardailler makes no representations about the suitability of + this software for any purpose. It is provided "as is" + without express or implied warranty.</p> + + <p>Modifications Copyright 1999 Matt Koss, under the same + license as above.</p> + </div> + \endcode + + If the \\endlegalese command is omitted, QDoc will process the + \\legalese command but considers the rest of the documentation + page as the license agreement. + + Ideally, the license text is located with the licensed code. + + Elsewhere, the documentation identified as \e{\\legalese} command + can be accumulated using \l {generatelist-command} {\\generatelist} + with \c {legalese-command} as the argument. This is useful for + generating an overview of the license agreements associated with + the source code. + + \target warning-command + \section1 \\warning + + The \\warning command prepends "Warning:" to the command's + argument, in bold font. + + \code + / *! + Qt::HANDLE is a platform-specific handle type + for system objects. This is equivalent to + \c{void *} on Windows and Mac OS X, and to + \c{unsigned long} on X11. + + \warning Using this type is not portable. + * / + \endcode + + QDoc renders this as: + + \quotation + Qt::HANDLE is a platform-specific handle type + for system objects. This is equivalent to + \c{void *} on Windows and Mac OS X, and to + \c{unsigned long} on X11. + + \warning Using this type is not portable. + \endquotation + +*/ + +/*! + \page 12-0-qdoc-commands-miscellaneous.html + \previouspage Special Content + \contentspage Table of Contents + \nextpage Creating DITA Maps + + \title Miscellaneous + + These commands provide miscellaneous functions connected to the + visual appearance of the documentation, and to the process of + generating the documentation. + + \target expire-command + \section1 \\expire + + The \\expire command allows you to define an expiration + date for your documentation. + + When using the \\expire command, QDoc will emit a warning when the + current date is larger than the specified date. The command + accepts one argument; the argument's format is yyyy-mm-dd. For + example: + + \code + / *! + \page porting.html + + \title Porting to Qt 3.x + + \expire 2004-12-31 + + This document describes porting applications from Qt + 2.x to Qt 3.x. + + The Qt 3.x series is not binary compatible with the + 2.x series. + ... + * / + \endcode + + If you run QDoc on 4 July 2005, it will emit the warning + + \quotation + porting.qdoc:6: Documentation expired 185 days ago + \endquotation + + + \target annotatedlist-command + \section1 \\annotatedlist + + The \\annotatedlist command expands to a list of the members of a + group, each member listed with its \e {brief} text. Below is an + example from the Qt Reference Documentation: + + \code + / *! + ... + \section1 Drag and Drop Classes + + These classes deal with drag and drop and the necessary mime type + encoding and decoding. + + \annotatedlist draganddrop + + * / + \endcode + + This generates a list of all the classes in the \e{draganddrop} group. + A class in the \e{draganddrop} group will have the \\ingroup command + in its \\class or \\qmlclass comment. + + + \target generatelist-command + \section1 \\generatelist + + The \\generatelist command expands to a list of various + documentation or links to documentation. Below is an example from + the Qt Reference Documentation: + + \code + / *! + \page classes.html + \title All Classes + + For a shorter list that only includes the most + frequently used classes, see \l{Qt's Main Classes}. For + a list of Qt 3 support classes, see \l{Qt3Support + Classes}. + + \generatelist classes + * / + \endcode + + This generates the \l {All Classes} page. The command accepts the + following arguments: + + \target table example + \section2 \c annotatedclasses + + The \c annotatedclasses argument provides a table containing the + names of all the classes, and a description of each class. Each + class name is a link to the class's reference documentation. For + example: + + \table + \row + \li QDial + \li Rounded range control (like a speedometer or potentiometer) + \row + \li QDialog + \li The base class of dialog windows + \row + \li QDir + \li Access to directory structures and their contents + \endtable + + A C++ class is documented with the \l {class-command} {\\class} + command. The annotation for the class is taken from the argument + of the class comment's \l {brief-command} {\\brief} command. + + \target list example + \section2 \c classes + + The \c classes argument provides a complete alphabetical list of + the classes. Each class name is a link to the class's reference + documentation. This command is uded to generate the \l + {classes.html} {All Classes} page this way: + + \code + / *! + \page classes.html + \title All Classes + \ingroup classlists + + \brief If you know the name of the class you want, find it here. + + This is a list of all Qt classes. For a list of the classes + provided for compatibility with Qt3, see \l{Qt3 Support + Classes}. For classes that have been deprecated, see the + \l{Obsolete Classes} list. + + \generatelist classes + * / + \endcode + + A C++ class is documented with the \l {class-command} {\\class} + command. + + \section2 \c classesbymodule + + When this argument is used, a second argument is required, which + specifies the module whose classes are to be listed. QDoc + generates a table containing those classes. Each class is listed + with the text of its \l{brief-command} {\\brief} command. + + This command is used to generate the \l {phonon-module.html} + {Phonon Module} page this way. + + \code + / *! + \page phonon-module.html + \module Phonon + \title Phonon Module + \ingroup modules + + \brief The Phonon module contains namespaces and classes for multimedia functionality. + + \generatelist{classesbymodule Phonon} + + ... + + * / + \endcode + + Each class that is a member of the specified module must be marked + with the \l {inmodule-command} {\\inmodule} command in its \\class + comment. + + \section2 \c compatclasses + + The \c compatclasses argument generates a list in alphabetical + order of the support classes. It is normally used only to + generate the \l {compatclasses.html} {Qt3 Support Classes} page + this way: + + \code + / *! + \page compatclasses.html + \title Qt3 Support Classes + \ingroup classlists + + \brief These classes ease the porting of code from Qt 3 to Qt 4. + + These are the classes that Qt provides for compatibility with Qt + 3. Most of these are provided by the Qt3Support module. + + \generatelist compatclasses + * / + \endcode + + A support class is identified in the \\class comment with the \l + {compat-command} {\\compat} command. + + \section2 \c functionindex + + The \c functionindex argument provides a complete alphabetical + list of all the documented member functions. It is normally used + only to generate the \l {functions.html} {Qt function index} page + this way: + + \code + / *! + \page functions.html + \title All Functions + \ingroup funclists + + \brief All documented Qt functions listed alphabetically with a + link to where each one is declared. + + This is the list of all documented member functions and global + functions in the Qt API. Each function has a link to the + class or header file where it is declared and documented. + + \generatelist functionindex + * / + \endcode + + \section2 \c legalese + + The \c legalese argument tells QDoc to generate a complete list of + licenses in the documentation. Each license is identified using + the \l {legalese-command} {\\legalese} command. This command is + used to generate the \l {licenses.html} {Qt license information} + page this way: + + \code + / *! + \page licenses.html + \title Other Licenses Used in Qt + \ingroup licensing + \brief Information about other licenses used for Qt components and third-party code. + + Qt contains some code that is not provided under the + \l{GNU General Public License (GPL)}, + \l{GNU Lesser General Public License (LGPL)} or the + \l{Qt Commercial Edition}{Qt Commercial License Agreement}, but rather under + specific licenses from the original authors. Some pieces of code were developed + by Nokia and others originated from third parties. + This page lists the licenses used, names the authors, and links + to the places where it is used. + + Nokia gratefully acknowledges these and other contributions + to Qt. We recommend that programs that use Qt also acknowledge + these contributions, and quote these license statements in an + appendix to the documentation. + + See also: \l{Licenses for Fonts Used in Qt for Embedded Linux} + + \generatelist legalese + * / + \endcode + + \section2 \c mainclasses + + The \c mainclasses argument tells QDoc to generate an alphabetical + list of the main classes. A class is marked as a main class by + including a \l {mainclass-command} {\\mainclass} command in the + \\class comment. + + \note The Qt documentation no longer includes a main classes page, + but you can generate one for your main classes if you want it. + + \section2 \c overviews + + The \c overviews argument is used to tell QDoc to generate a list + by concatenating the contents of all the \l {group-command} + {\\group} pages. Qt uses it to generate the \l {overviews.html} + {overviews} page this way: + + \code + / *! + \page overviews.html + + \title All Overviews and HOWTOs + + \generatelist overviews + * / + \endcode + + \section2 \c related + + The \c related argument is used in combination with the \l + {group-command} {\\group} and \l {ingroup-command} {\\ingroup} + commands to list all the overviews related to a specified + group. For example, the page for the \l {Programming with Qt} + {Programming with Qt} page is generated this way: + + \code + / *! + \group qt-basic-concepts + \title Programming with Qt + + \brief The basic architecture of the Qt cross-platform application and UI framework. + + Qt is a cross-platform application and UI framework for + writing web-enabled applications for desktop, mobile, and + embedded operating systems. This page contains links to + articles and overviews explaining key components and + techniuqes used in Qt development. + + \generatelist {related} + * / + \endcode + + Each page listed on this group page contains the command: + + \code + \ingroup qt-basic-concepts + \endcode + + \section2 \c service + + The \c service argument tells QDoc to generate an alphabetical + list of the services. Each service name is a link to the service's + reference documentation. + + A service is identified with the \l {service-command} {\\service} + command. + + \note This command and the \l {service-command} {\\service} + command are not used in the Qt documentation. + + \target if-command + \section1 \\if + + The \\if command and the corresponding \\endif command + enclose parts of a QDoc comment that only will be included if + the condition specified by the command's argument is true. + + The command reads the rest of the line and parses it as an C++ #if + statement. + + \code + / *! + \if defined(opensourceedition) + + \b{Note:} This edition is for the development of + \l{Qt Open Source Edition} {Free and Open Source} + software only; see \l{Qt Commercial Editions}. + + \endif + * / + \endcode + + This QDoc comment will only be rendered if the \c + opensourceedition preprocessor symbol is defined, and specified in + the \l {defines-variable} {defines} variable in the configuration + file to make QDoc process the code within #ifdef and #endif: + + \code + defines = opensourceedition + \endcode + + You can also define the preprocessor symbol manually on the + command line. For more information see the documentation of the \l + {defines-variable} {defines} variable. + + See also \l{endif-command} {\\endif}, \l{else-command} {\\else}, + \l {defines-variable} {defines} and \l {falsehoods-variable} + {falsehoods}. + + \target endif-command + \section1 \\endif + + The \\endif command and the corresponding \\if command + enclose parts of a QDoc comment that will be included if + the condition specified by the \l {if-command} {\\if} command's + argument is true. + + For more information, see the documentation of the \l {if-command} + {\\if} command. + + See also \l{if-command} {\\if}, \l{else-command} {\\else}, \l + {defines-variable} {defines} and \l {falsehoods-variable} + {falsehoods}. + + \target else-command + \section1 \\else + + The \\else command specifies an alternative if the + condition in the \l {if-command} {\\if} command is false. + + The \\else command can only be used within \l {if-command} + {\\if...\\endif} commands, but is useful when there is only two + alternatives. + + \code + / *! + The Qt 3 support library is provided to keep old + source code working. + + In addition to the \c Qt3Support classes, Qt 4 provides + compatibility functions when it's possible for an old + API to cohabit with the new one. + + \if !defined(QT3_SUPPORT) + \if defined(QT3_SUPPORTWARNINGS) + The compiler emits a warning when a + compatibility function is called. (This works + only with GCC 3.2+ and MSVC 7.) + \else + To use the Qt 3 support library, you need to + have the line QT += qt3support in your .pro + file (qmake automatically define the + QT3_SUPPORT symbol, turning on compatibility + function support). + + You can also define the symbol manually (e.g., + if you don't want to link against the \c + Qt3Support library), or you can define \c + QT3_SUPPORT_WARNINGS instead, telling the + compiler to emit a warning when a compatibility + function is called. (This works only with GCC + 3.2+ and MSVC 7.) + \endif + \endif + * / + \endcode + + If the \c QT3_SUPPORT is defined, the comment will be rendered + like this: + + \quotation + The Qt 3 support library is provided to keep old source + code working. + + In addition to the Qt3Support classes, Qt 4 provides + compatibility functions when it's possible for an old + API to cohabit with the new one. + \endquotation + + If \c QT3_SUPPORT is not defined but \c QT3_SUPPORT_WARNINGS is + defined, the comment will be rendered like this: + + \quotation + The Qt 3 support library is provided to keep old source + code working. + + In addition to the Qt3Support classes, Qt 4 provides + compatibility functions when it's possible for an old + API to cohabit with the new one. + + The compiler emits a warning when a compatibility + function is called. (This works only with GCC 3.2+ and + MSVC 7.) + \endquotation + + If none of the symbols are defined, the comment will be + rendered as + + \quotation + The Qt 3 support library is provided to keep old + source code working. + + In addition to the \c Qt3Support classes, Qt 4 provides + compatibility functions when it's possible for an old + API to cohabit with the new one. + + To use the Qt 3 support library, you need to have the + line QT += qt3support in your .pro file (qmake + automatically define the QT3_SUPPORT symbol, turning on + compatibility function support). + + You can also define the symbol manually (e.g., if you + don't want to link against the \c Qt3Support library), + or you can define \c QT3_SUPPORT_WARNINGS instead, + telling the compiler to emit a warning when a + compatibility function is called. (This works only with + GCC 3.2+ and MSVC 7.) + \endquotation + + See also \l{if-command} {\\if}, \l{endif-command} {\\endif}, \l + {defines-variable} {defines} and \l {falsehoods-variable} + {falsehoods}. + + \target include-command + \section1 \\include + + The \\include command sends all or part of the file specified by + its first argument to the QDoc input stream to be processed as a + qdoc comment snippet. This command is often assigned the alias, + \e {input}, in the QDoc configuration file, e.g. \e {alias.include + = input}. + + The command is useful when some snippet of commands and text is to + be used in multiple places in the documentation. In that case, + move the snippet into a separate file and use the \\include + command wherever you want to insert the snippet into the + documentation. To prevent QDoc from reading the file as a + stand-alone page of documentation, we recommend that you use the + \c .qdocinc extension for these \e {include} files. + + The command can have either one or two arguments. The first + argument is always a file name. The contents of the file must be + QDoc input, i.e. a sequence of QDoc commands and text, but without + the enclosing qdoc comment \c{/}\c{*!} ... \c{*}\c{/} delimeters. + If you want to include the entire named file, don't use the second + argument. If you want to include only part of the file, see the + \l{2-argument-form}{two argument form} below. Here is an example + of the one argument form: + + \code + / *! + \page corefeatures.html + \title Core Features + + \include examples/signalandslots.qdocinc + \include examples/objectmodel.qdocinc + \include examples/layoutmanagement.qdocinc + * / + \endcode + + Here are links to the \c .qdocinc files used above: + \l{signalandslots.qdocinc}, \l{objectmodel.qdocinc}, + \l{layoutmanagement.qdocinc}. QDoc renders this page + \l{corefeatures.html} {as shown here}. + + \target 2-argument-form} + \section2 \\include filename snippet-identifier + + It is kind of a pain to make a separate \c .qdocinc file for every + QDoc include snippet you want to use in multiple places in the + documentation, especially given that you probably have to put the + copyright/license notice in every one of these files. So if you + have lots of these include snippets, you can put them all in a + single file if you want, and surround each one with: + \code + //! [snippet-id1] + + QDoc commands and text... + + //! [snippet-id1] + + //! [snippet-id2] + + More QDoc commands and text... + + //! [snippet-id2] + \endcode + + Then you can use the two-argument form of the command: + + \code + \input examples/signalandslots.qdocinc snippet-id2 + \input examples/objectmodel.qdocinc another-snippet-id + \endcode + + It works as expected. The sequence of QDoc commands and text found + between the two tags with the same name as the second argument is + sent to the QDoc input stream. You can even nest these snippets, + although it's not clear why you would want to do that. + + \target meta-command + \section1 \\meta + + The \\meta command is mainly used for including metadata in DITA + XML files. It is also used when generating HTML output for specifying + the \e maintainer(s) of a C++ class. + + The command has two arguments: The first argument is the name of the + metadata attribute you wish to set, and the second argument is the + value for the attribute. Each argument should be enclosed in curly + brackets, as shown in this example: + + \code + / *! + \class QWidget + \brief The QWidget class is the base class of all user interface objects. + + \ingroup basicwidgets + + \meta {technology} {User Interface} + \meta {platform} {OS X 10.6} + \meta {platform} {Symbian} + \meta {platform} {MeeGo} + \meta {audience} {user} + \meta {audience} {programmer} + \meta {audience} {designer} + * / + \endcode + + When running QDoc to generate HTML, the example above will have no + effect on the generated output, but if you run QDoc to generate + DITA XML, the example will generate the following: + + \code + <?xml version="1.0" encoding="UTF-8"?> + <!DOCTYPE cxxClass PUBLIC "-//NOKIA//DTD DITA C++ API Class Reference Type v0.6.0//EN" "dtd/cxxClass.dtd"> + <!--qwidget.cpp--> + <cxxClass id="id-9a14268e-6b09-4eee-b940-21a00a0961df"> + <apiName>QWidget</apiName> + <shortdesc>the QWidget class is the base class of all user interface objects.</shortdesc> + <prolog> + <author>Qt Development Frameworks</author> + <publisher>Nokia</publisher> + <copyright> + <copyryear year="2011"/> + <copyrholder>Nokia</copyrholder> + </copyright> + <permissions view="all"/> + <metadata> + <audience type="designer"/> + <audience type="programmer"/> + <audience type="user"/> + <category>Class reference</category> + <prodinfo> + <prodname>Qt Reference Documentation</prodname> + <vrmlist> + <vrm version="4" release="7" modification="3"/> + </vrmlist> + <component>QtGui</component> + </prodinfo> + <othermeta name="platform" content="MeeGo"/> + <othermeta name="platform" content="Symbian"/> + <othermeta name="platform" content="OS X 10.6"/> + <othermeta name="technology" content="User Interface"/> + </metadata> + </prolog> + \endcode + + In the example output, several values have been set using defualt + values obtained from the QDoc configuration file. See \l + {Generating DITA XML Output} for details. + + \target omit-command + \section1 \\omit + + The \\omit command and the correspondning \\endomit command + delimit parts of the documentation that you want QDoc to skip. For + example: + + \code + / *! + \table + \row + \li Basic Widgets + \li Basic GUI widgets such as buttons, comboboxes + and scrollbars. + + \omit + \row + \li Component Model + \li Interfaces and helper classes for the Qt + Component Model. + \endomit + + \row + \li Database Classes + \li Database related classes, e.g. for SQL databases. + \endtable + * / + \endcode + + QDoc renders this as: + + \raw HTML + <table align="center" cellpadding="2" + cellspacing="1" border="0"> + + <tr valign="top" bgcolor="#d0d0d0"> + <td>Basic Widgets</td> + <td>Basic GUI widgets such as buttons, comboboxes + and scrollbars.</td> + </tr> + + <tr valign="top" bgcolor="#c0c0c0"> + <td>Database Classes</td> + <td>Database related classes, e.g. for SQL databases.</td> + </tr> + </table> + \endraw + + \target raw-command + \section1 \\raw \span {class="newStuff"} {(avoid)} + + The \\raw command and the corresponding + \\endraw command delimit a block of raw mark-up language code. + + \note Avoid using this command if possible, because it generates + DITA XML code that causes problems. If you are trying to generate + special table or list behavior, try to get the behavior you want + using the \l {span-command} {\\span} and \l {div-command} {\\div} + commands in your \l {table-command} {\\table} or \l {list-command} + {\\list}. + + The command takes an argument specifying the code's format; + currently the only supported format is HTML. + + The \\raw command is useful if you want some special HTML effects + in your documentation. + + \code + / *! + Qt has some predefined QColor objects. + + \raw HTML + <style type="text/css" id="colorstyles"> + #color-blue { background-color: #0000ff; color: #ffffff } + #color-darkBlue { background-color: #000080; color: #ffffff } + #color-cyan { background-color: #00ffff; color: #000000 } + </style> + + <p> + <tt id="color-blue">Blue(#0000ff)</tt>, + <tt id="color-darkBlue">dark blue(#000080)</tt> and + <tt id="color-cyan">cyan(#00ffff)</tt>. + </p> + \endraw + * / + \endcode + + QDoc renders this as: + + \quotation + Qt has some predefined QColor objects. + + \raw HTML + <style type="text/css" id="colorstyles"> + #color-blue { background-color: #0000ff; color: #ffffff } + #color-darkBlue { background-color: #000080; color: #ffffff } + #color-cyan { background-color: #00ffff; color: #000000 } + </style> + + <p> + <tt id="color-blue">Blue(#0000ff)</tt>, + <tt id="color-darkBlue">dark blue(#000080)</tt> and + <tt id="color-cyan">cyan(#00ffff)</tt>. + </p> + \endraw + \endquotation + + \note But you can achieve the exact same thing using qdoc + commands. In this case, all you have to do is include the color + styles in your style.css file. Then you can write: + + \code + \tt {\span {id="color-blue"} {Blue(#0000ff)}}, + \tt {\span {id="color-darkBlue"} {dark blue(#000080)}} and + \tt {\span {id="color-cyan"} {cyan(#00ffff)}}. + \endcode + + ...which is rendered again as: + + \tt {\span {id="color-blue"} {Blue(#0000ff)}}, + \tt {\span {id="color-darkBlue"} {dark blue(#000080)}} and + \tt {\span {id="color-cyan"} {cyan(#00ffff)}}. + + \target unicode-command + \section1 \\unicode + + The \\unicode command allows you to insert an arbitrary Unicode + character in the document. + + The command takes an argument specifying the character as an + integer. By default, base 10 is assumed, unless a '0x' or '0' + prefix is specified (for base 16 and 8, respectively). For + example: + + \code + O G\unicode{0xEA}nio e as Rosas + + \unicode 0xC0 table en famille avec 15 \unicode 0x20AC par jour + + \unicode 0x3A3 \e{a}\sub{\e{i}} + \endcode + + QDoc renders this as: + + \quotation + O G\unicode{0xEA}nio e as Rosas + + \unicode 0xC0 table en famille avec 15 \unicode 0x20AC par jour + + \unicode 0x3A3 \e{a}\sub{\e{i}} + \endquotation +*/ + +/*! + \page 12-1-signalandslots.html + \previouspage Miscellaneous + \contentspage Table of Contents + + \title signalandslots.qdocinc + + \quotefile examples/signalandslots.qdocinc +*/ + +/*! + \page 12-2-objectmodel.html + \previouspage Miscellaneous + \contentspage Table of Contents + + \title objectmodel.qdocinc + + \quotefile examples/objectmodel.qdocinc +*/ + +/*! + \page 12-3-layoutmanagement.html + \previouspage Miscellaneous + \contentspage Table of Contents + + \title layoutmanagement.qdocinc + + \quotefile examples/layoutmanagement.qdocinc +*/ + +/*! + \page 13-qdoc-commands-topics.html + \previouspage Command Index + \contentspage Table of Contents + \nextpage Context Commands + + \title Topic Commands + + A topic command tells QDoc which source code element is being + documented. Some topic commands allow you to create documentation + pages that aren't tied to any underlying source code element. + + When QDoc processes a QDoc comment, it tries to connect the + comment to an element in the source code by first looking for a + topic command that names the source code element. If there is no + topic command, QDoc tries to connect the comment to the source + code element that immediately follows the comment. If it can't do + either of these and if there is no topic command that indicates + the comment does not have an underlying source code element (e.g. + \l{page-command} {\\page}), then the comment is discarded. + + \target topic argument + + The name of the entity being documented is usually the only + argument for a topic command. Use the complete name. Sometimes + there can be a second parameter in the argument. See e.g. \l + {page-command} {\\page}. + + \code + \enum QComboBox::InsertPolicy + \endcode + + The \l {fn-command} {\\fn} command is a special case. For the \l + {fn-command} {\\fn} command, use the function's signature + including the class qualifier. + + \code + \fn void QGraphicsWidget::setWindowFlags(Qt::WindowFlags wFlags) + \endcode + + A topic command can appear anywhere in a comment but must stand + alone on its own line. Best practice is to let the topic commend + be the first line of the comment. If the argument spans several + lines, make sure that each line (except the last one) is ended + with a backslash. In addition QDoc counts parentheses, which means + that if it encounters a '(' it considers everything until the + closing ')' as its argument. + + If a topic command is repeated with different arguments, the + same documentation will appear for both the units. + + \code + / *! + \fn void PreviewWindow::setWindowFlags() + \fn void ControllerWindow::setWindowFlags() + + Sets the widgets flags using the QWidget::setWindowFlags() + function. + + Then runs through the available window flags, creating a text + that contains the names of the flags that matches the flags + parameter, displaying the text in the widgets text editor. + * / + \endcode + + The \c PreviewWindow::setWindowFlags() and \c + ControllerWindow::setWindowFlags() functions will get the same + documentation. + + \target class-command + \section1 \\class + + The \\class command is for documenting a C++ class. The argument + is the complete name of the class. The command tells QDoc that a + class is part of the public API, and lets you enter a detailed + description. + + \code + / *! + \class QMap::iterator + + \brief The QMap::iterator class provides an STL-style + non-const iterator for QMap and QMultiMap. + + QMap features both \l{STL-style iterators} and + \l{Java-style iterators}. The STL-style iterators ... + * / + \endcode + + The HTML documentation for the named class is written to a + \c{.html} file named from the class name, in lower case, and with + the double colon qulifier(s) replaced with '-'. For example, the + documentation for the \c QMap::Iterator class is written to \c + qmap-iterator.html. + + \target framework + + The file contains the class description from the \\class comment, + plus the documentation generated from QDoc comments for all the + class members, i.e. a list of the class's types, properties, + functions, signals, and slots. + + In addition to the detailed description of the class, the \\class + comment typically contains a \l {brief-command} {\\brief} command + and one or more \l{Markup Commands}. See the \\class command for + any of the Qt class for examples. Here is a very simple example: + + \code + / *! + \class PreviewWindow + \brief The PreviewWindow class is a custom widget + displaying the names of its currently set + window flags in a read-only text editor. + + \ingroup miscellaneous + + The PreviewWindow class inherits QWidget. The widget + displays the names of its window flags set with the \l + {function} {setWindowFlags()} function. It is also + provided with a QPushButton that closes the window. + + ... + + \sa QWidget + * / + \endcode + + The way QDoc renders this \\class will depend a lot on your \c + {style.css} file, but the general outline of the class reference + page will look like this: + + \quotation + \raw HTML + <h1>PreviewWindow Class Reference</h1> + \endraw + + The PreviewWindow class is a custom widget displaying + the names of its currently set window flags in a + read-only text editor. \l {preview window} {More...} + + \raw HTML + <h3>Properties</h3> + \endraw + + \list + \li 52 properties inherited from QWidget + \li 1 property inherited from QObject + \endlist + + \raw HTML + <h3>Public Functions</h3> + \endraw + + \list + \li \l {constructor} {PreviewWindow}(QWidget *parent = 0) + \li void \l {function} {setWindowFlags}(Qt::WindowFlags flags) + \endlist + + \list + \li 183 public functions inherited from QWidget + \li 28 public functions inherited from QObject + \endlist + + \raw HTML + <h3>Public Slots</h3> + \endraw + + \list + \li 17 public slots inherited from QWidget + \li 1 public slot inherited from QObject + \endlist + + \raw HTML + <h3>Additional Inherited Members</h3> + \endraw + + \list + \li 1 signal inherited from QWidget + \li 1 signal inherited from QObject + \li 4 static public members inherited from QWidget + \li 4 static public members inherited from QObject + \li 39 protected functions inherited from QWidget + \li 7 protected functions inherited from QObject + \endlist + + \target preview window + + \raw HTML + <hr /> + <h2>Detailed Description</h2> + \endraw + + The PreviewWindow class is a custom widget displaying + the names of its currently set window flags in a + read-only text editor. + + The PreviewWindow class inherits QWidget. The widget + displays the names of its window flags set with the \l + {function} {setWindowFlags()} function. It is also + provided with a QPushButton that closes the window. + + ... + + See also QWidget. + + \raw HTML + <hr /> + <h2>Member Function Documentation</h2> + \endraw + + \target constructor + \raw HTML + <h3>PreviewWindow(QWidget *parent = 0)</h3> + \endraw + + Constructs a preview window widget with \e parent. + + \target function + \raw HTML + <h3>setWindowFlags(Qt::WindowFlags flags)</h3> + \endraw + + Sets the widgets flags using the + QWidget::setWindowFlags() function. + + Then runs through the available window flags, + creating a text that contains the names of the flags + that matches the flags parameter, displaying + the text in the widgets text editor. + \endquotation + + \target enum-command + \section1 \\enum + + The \\enum command is for documenting a C++ enum type. The + argument is the full name of the enum type. + + The enum values are documented in the \\enum comment using the \l + {value-command} {\\value} command. If an enum value is not + documented with \\value, QDoc emits a warning. These warnings can + be avoided using the \l {omitvalue-command} {\\omitvalue} command + to tell QDoc that an enum value should not be documented. The enum + documentation will be included on the class reference page, header + file page, or namespace page where the enum type is defined. For + example, consider the enum type \c {Corner} in the Qt namespace: + + \code + enum Corner { + TopLeftCorner = 0x00000, + TopRightCorner = 0x00001, + BottomLeftCorner = 0x00002, + BottomRightCorner = 0x00003 + #if defined(QT3_SUPPORT) && !defined(Q_MOC_RUN) + ,TopLeft = TopLeftCorner, + TopRight = TopRightCorner, + BottomLeft = BottomLeftCorner, + BottomRight = BottomRightCorner + #endif + }; + \endcode + + This enum can be cocumented this way: + + \code + / *! + \enum Qt::Corner + + This enum type specifies a corner in a rectangle: + + \value TopLeftCorner + The top-left corner of the rectangle. + \value TopRightCorner + The top-right corner of the rectangle. + \value BottomLeftCorner + The bottom-left corner of the rectangle. + \value BottomRightCorner + The bottom-right corner of the rectangle. + + \omitvalue TopLeft + \omitvalue TopRight + \omitvalue BottomLeft + \omitvalue BottomRight + * / + \endcode + + Note the inclusion of the namespace qualifier. QDoc will render + this enum type in \c {qt.html} like this: + + \quotation + \raw HTML + <h3 class="fn"><a name="Corner-enum"></a>enum Qt::Corner</h3> + + <p>This enum type specifies a corner in a rectangle:</p> + + <table border="1" cellpadding="2" cellspacing="1" width="100%"> + <tr> + <th width="25%">Constant</th> + <th width="15%">Value</th> + <th width="60%">Description</th> + </tr> + + <tr> + <td valign="top"><tt>Qt::TopLeftCorner</tt></td> + <td align="center" valign="top"><tt>0x00000</tt></td> + <td valign="top">The top-left corner of the rectangle.</td> + </tr> + + <tr> + <td valign="top"><tt>Qt::TopRightCorner</tt></td> + <td align="center" valign="top"><tt>0x00001</tt></td> + <td valign="top">The top-right corner of the rectangle.</td> + </tr> + + <tr> + <td valign="top"><tt>Qt::BottomLeftCorner</tt></td> + <td align="center" valign="top"><tt>0x00002</tt></td> + <td valign="top">The bottom-left corner of the rectangle.</td> + </tr> + + <tr> + <td valign="top"><tt>Qt::BottomRightCorner</tt></td> + <td align="center" valign="top"><tt>0x00003</tt></td> + <td valign="top">The bottom-right corner of the rectangle.</td> + </tr> + + </table> + \endraw + \endquotation + + See also \l {value-command} {\\value} and \l {omitvalue-command} {\\omitvalue}. + + \target example-command + \section1 \\example + + The \\example command is for documenting an example. The argument + is the example's path relative to omne of the paths listed in the + \l {exampledirs-variable} {exampledirs} variable in the QDoc + configuration file. + + The documentation page will be output to \c {path-to-example}.html. + QDoc will add a list of all the example's source files at the top + of the page. + + For example, if \l {exampledirs-variable} {exampledirs} contains + \c $QTDIR/examples/widgets/imageviewer, then + + \code + / *! + \example widgets/imageviewer + \title ImageViewer Example + \subtitle + + The example shows how to combine QLabel and QScrollArea + to display an image. + + ... + * / + \endcode + + QDoc renders this example in widgets-imageviewer.html: + + \quotation + \raw HTML + <center><h1>Image Viewer Example</h1></center> + \endraw + + Files: + \list + \li \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-imageviewer-cpp.html} + {widgets/imageviewer/imageviewer.cpp} + \li \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-imageviewer-h.html} + {widgets/imageviewer/imageviewer.h} + \li \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-main-cpp.html} + {widgets/imageviewer/main.cpp} + \endlist + + The example shows how to combine QLabel and QScrollArea + to display an image. + + ... + \endquotation + + \target externalpage-command + \section1 \\externalpage + + The \\externalpage command assigns a title to an external URL. + + \code + / *! + \externalpage http://doc.qt.nokia.com/index.html + \title Qt Documentation Site + * / + \endcode + + This allows you to include a link to the external page in your + documentation this way: + + \code + / *! + At the \l {Qt Documentation Site} you can find the latest + documentation for Qt, Qt Creator, the Qt SDK and much more. + * / + \endcode + + QDoc renders this as: + + \quotation + At the \l {http://doc.qt.nokia.com/index.html}{Qt Documentation Site} + you can find the latest documentation for Qt, Qt Creator, the Qt SDK + and much more. + \endquotation + + To achieve the same result without using the \\externalpage + command, you would have to hard code the address into your + documentation: + + \code + / *! + At the \l {http://doc.qt.nokia.com/index.html}{Qt Documentation Site} + you can find the latest documentation for Qt, Qt Creator, the Qt SDK + and much more. + * / + \endcode + + The \\externalpage command makes it easier to maintain the + documentation. If the address changes, you only need to change the + argument of the \\externalpage command. + + \target fn-command + \section1 \\fn (function) + + The \\fn command is for documenting a function. The argument is + the function's signature, including its return type, const-ness, + and list of formal arguments with types. If the named function + doesn't exist, QDoc emits a warning. + + \note The \\fn command is QDoc's default command, i.e. when no + topic command can be found in a QDoc comment, QDoc tries to tie + the documentation to the following code as if it is the + documentation for a function. Hence, it is normally not necessary + to include this command when documenting a function, if the + function's QDoc comment is written immediately above the function + implementation in the \c .cpp file. But it must be present when + documenting an inline function in the \c .cpp file that is + implemented in the \c .h file. + + \code + / *! + \fn bool QToolBar::isAreaAllowed(Qt::ToolBarArea area) const + + Returns true if this toolbar is dockable in the given + \a area; otherwise returns false. + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h3>bool QToolBar::isAreaAllowed(Qt::ToolBarArea area) const + </h3> + \endraw + + Returns true if this toolbar is dockable in the given + \a area; otherwise returns false. + \endquotation + + See also \l {overload-command} {\\overload}. + + \target group-command + \section1 \\group + + The \\group command creates a separate page that lists the classes + belonging to the group. The argument is the group name. + + A class is included in a group by using the \l {ingroup-command} + {\\ingroup} command. Overview pages can also be related to a group + using the same command, but the list of overview pages must be + requested explicitly using the \l {generatelist-command} + {\\generatelist} command (see example below). + + The \\group command is typically followed by a \l {title-command} + {\\title} command and a short introduction to the group. The + HTML page for the group is written to a \c {.html} file put in + <lower-case>\e{group}.html. + + Each class name is listed as a link to the class reference page + followed by the text from the class's \l {brief-command} {\\brief} + texts. + + \code + / *! + \group io + + \title Input/Output and Networking + + These classes are used to handle input and output to + and from external devices, processes, files etc. as + well as manipulating files and directories. + * / + \endcode + + QDoc generates a group page in \c{io.html} that will look + like this: + + \quotation + \raw HTML + + <h1>Input/Output and Networking</h1> + + <p>These classes are used to handle input and output + to and from external devices, processes, files etc. as + well as manipulating files and directories.</p> + + <p> + <table width="100%"> + <tr valign="top" bgcolor="#e0e0e0"> + <td><b> + <a href="http://qt.nokia.com/doc/4.0/qabstractsocket.html">QAbstractSocket</a> + </b></td> + <td> + The base functionality common to all socket types + </td></tr> + + <tr valign="top" bgcolor="#e0e0e0"> + <td><b> + <a href="http://qt.nokia.com/doc/4.0/qbuffer.html">QBuffer</a> + </b></td> + <td> + QIODevice interface for a QByteArray + </td></tr> + + <tr valign="top" bgcolor="#e0e0e0"> + <td><b> + <a href="http://qt.nokia.com/doc/4.0/qclipboard.html">QClipboard</a> + </b></td> + <td> + Access to the window system clipboard + </td></tr> + </table> + \endraw + \endquotation + + Note that overview pages related to the group, must be listed + explicitly using the \l {generatelist-command} {\\generatelist} + command with the \c related argument. + + \code + / *! + \group architecture + + \title Architecture + + These documents describe aspects of Qt's architecture + and design, including overviews of core Qt features and + technologies. + + \generatelist{related} + * / + \endcode + + See also \l {ingroup-command} {\\ingroup} and \l + {generatelist-command} {\\generatelist}. + + \target headerfile-command + \section1 \\headerfile + + The \\headerfile command is for documenting the global functions, + types and macros that are declared in a header file but not in a + namespace. The argument is the name of the header file. The HTML + page is written to a \c {.html} file constructed from the header + file aregument. + + The documentation for a function, type, or macro that is declared + in the header file being documented is included in the header file + page using the \l {relates-command} {\\relates} command. + + If the argument doesn't exist as a header file, the \\headerfile + command creates a documentation page for the header file anyway. + + \code + / *! + \headerfile <QtAlgorithms> + + \title Generic Algorithms + + \brief The <QtAlgorithms> header file provides + generic template-based algorithms. + + Qt provides a number of global template functions in \c + <QtAlgorithms> that work on containers and perform + well-know algorithms. + * / + \endcode + + QDoc generates a header file page \c{qtalgorithms.html} that looks + like this: + + \quotation + \raw HTML + <center><h1><QtAlgorithms> - + Generic Algorithms</h1></center> + <p>The <QtAlgorithms> header file provides generic + template-based algorithms. + <a href="13-qdoc-commands-topics.html#header-command">More...</a> + </p> + + <h3>Functions</h3> + <ul> + <li>RandomAccessIterator + <a href="http://qt.nokia.com/doc/4.0/qlineedit.html#EchoMode-enum">qBinaryFind</a></b> + (RandomAccessIterator begin, RandomAccessIterator end, + const T & value)</li> + <li>...</li></ul> + <hr /> + \endraw + + \target header + + \raw HTML + <h2>Detailed Description</h2> + <p>The <QtAlgorithms> header file provides generic + template-based algorithms. </p> + \endraw + + Qt provides a number of global template functions in \c + <QtAlgorithms> that work on containers and perform + well-know algorithms. + + ... + \endquotation + + \target macro-command + \section1 \\macro + + The \\macro command is for documententin a C++ macro. The argument + is the macro in one of three styles: function-like macros like + Q_ASSERT(), declaration-style macros like Q_PROPERTY(), and macros + without parentheses like Q_OBJECT. + + The \\macro comment must contain a \l {relates-command} + {\\relates} command that attaches the macro comment to a class, + header file, or namespace. Otherwise, the documentation will be + lost. Here are three example macro comments followed by what they + might look like in \c {qtglobal.html} or \c {qobject.html}: + + \code + / *! + \macro void Q_ASSERT(bool test) + \relates <QtGlobal> + + Prints a warning message containing the source code + file name and line number if \a test is false. + + ... + + \sa Q_ASSERT_X(), qFatal(), {Debugging Techniques} + * / + \endcode + + \quotation + \raw HTML + <h3>void Q_ASSERT ( bool <i>test</i> )</h3> + \endraw + + Prints a warning message containing the source code + file name and line number if \a test is false. + + ... + + See also Q_ASSERT_X(), qFatal() and \l {Debugging Techniques}. + + \endquotation + + \code + / *! + \macro Q_PROPERTY(...) + \relates QObject + + This macro declares a QObject property. The syntax is: + + ... + + \sa {Qt's Property System} + * / + \endcode + + \quotation + \raw HTML + <h3>Q_PROPERTY ( ... )</h3> + \endraw + + This macro declares a QObject property. The syntax is: + + ... + + See also \l {Qt's Property System}. + \endquotation + + \code + / *! + \macro Q_OBJECT + \relates QObject + + The Q_OBJECT macro must appear in the private section + of a class definition that declares its own signals and + slots or that uses other services provided by Qt's + meta-object system. + + ... + + \sa {Meta-Object System}, {Signals and Slots}, {Qt's + Property System} + * / + \endcode + + \quotation + \raw HTML + <h3>Q_OBJECT</h3> + \endraw + + The Q_OBJECT macro must appear in the private section + of a class definition that declares its own signals and + slots or that uses other services provided by Qt's + meta-object system. + + ... + + See also \l {Meta-Object System}, \l {Signals & + Slots} and \l {Qt's Property System}. + \endquotation + + \target module-command + \section1 \\module + + The \\module creates a page that lists the classes belonging to + the module specified by the command's argument. A class included + in the module by including the \l {inmodule-command} {\\inmodule} + command in the \\class comment. + + The \\module command is typically followed by a \l {title-command} + {\\title} and a \l {brief-command} {\\brief} command. Each class + is listed as a link to the class reference page followed by the + text from the class's \l {brief-command} {\\brief} command. For + example: + + \code + / *! + \module QtNetwork + + \title QtNetwork Module + + \brief The QtNetwork module offers classes that allow + you to write TCP/IP clients and servers. + + The network module provides classes to make network + programming easier and portable. It offers both + high-level classes such as QNetworkAccessManager that + implements application-level protocols, and + lower-level classes such as QTcpSocket, QTcpServer, and + QUdpSocket. + * / + \endcode + + QDoc renders this in \c {qtnetwork.html} like this: + + \quotation + \raw HTML + <h1><center>QtNetwork Module</center></h1> + \endraw + + The QtNetwork module offers classes that allow you to + write TCP/IP clients and servers.\l {module + details} {More...} + + \raw HTML + <p> + <table width="100%"> + <tr valign="top" bgcolor="#d0d0d0"> + <td><b> + <a href="http://qt.nokia.com/doc/4.0/qabstractsocket.html">QAbstractSocket</a> + </b></td> + <td> + The base functionality common to all socket types + </td></tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td><b> + <a href="http://qt.nokia.com/doc/4.0/qftp.html">QFtp</a> + </b></td> + <td> + Implementation of the FTP protocol + </td></tr> + + <tr valign="top" bgcolor="#d0d0d0"> + <td>...</td> + <td>...</td> + </tr> + </table> + + <p><hr /></p> + \endraw + + \target module details + + \raw HTML + <h2>Detailed Description</h2> + + <p> + The QtNetwork module offers classes that allow you to + write TCP/IP clients and servers. + </p> + + <p> + The network module provides classes to make network + programming easier and portable. It offers both + high-level classes such as QNetworkAccessManager that + implements application-level protocols, and + lower-level classes such as QTcpSocket, QTcpServer, and + QUdpSocket. + </p> + \endraw + + ... + + \endquotation + + See also \l {inmodule-command} {\\inmodule} + + \target namespace-command + \section1 \\namespace + + The \\namespace command is for documenting the contents of the C++ + namespace named as its argument. The documentation outline QDoc + generates for a namespace is similar to the outline it generates + for a C++ class. + + \code + / *! + \namespace Qt + + \brief The Qt namespace contains miscellaneous + identifiers used throughout the Qt library. + * / + \endcode + + QDoc renders this in \c{qt.html} like this: + + \quotation + \raw HTML + <center><h1>Qt Namespace Reference</h1></center> + <p>The Qt namespace contains miscellaneous + identifiers used throughout the Qt library. + <a href="13-qdoc-commands-topics.html#name">More...</a> + </p> + + <pre>#include <Qt></pre> + <ul> + <li> + <a href="http://qt.nokia.com/doc/4.0/qt-qt3.html"> + Qt 3 support members</a></li> + </ul> + + + <h3>Types</h3> + <ul> + <li>flags + <a href="http://qt.nokia.com/doc/4.0/qt.html#AlignmentFlag-enum">Alignment</a></b></li> + <li>...</li></ul> + <hr /> + \endraw + + \target name + + \raw HTML + <h2>Detailed Description</h2> + <p>The Qt namespace contains miscellaneous identifiers + used throughout the Qt library.</p> + \endraw + + ... + \endquotation + + \target page-command + \section1 \\page + + The \\page command is for creating a stand-alone documentation + page. The argument can consist of two parts separated by a + space. The first part is the name of the file where QDoc should + store the page. The second part, if present, is a word that + specifies the page type. Currently, the second part can be one of + the following list of words: + + \list + + \li faq - A frequently asked question. + + \li howto - A user guide for how to use some component of the + software. + + \li example - A page that describes a working example. + + \li overview - For text pages that provide an overview of some + important subject. + + \li tutorial - For text pages that are part of a tutorial. + + \li api - This is the type of page used for C++ class references + and QML element references, etc. You should never use this one for + the pages you write, because this one is reserved for qdoc. + + \endlist + + The page title is set using the \l {title-command} {\\title} + command. + + \code + / *! + \page aboutqt.html + + \title About Qt + + Qt is a C++ toolkit for cross-platform GUI + application development. Qt provides single-source + portability across Microsoft Windows, Mac OS X, Linux, + and all major commercial Unix variants. + + Qt provides application developers with all the + functionality needed to build applications with + state-of-the-art graphical user interfaces. Qt is fully + object-oriented, easily extensible, and allows true + component programming. + + ... + * / + \endcode + + QDoc renders this page in \c {aboutqt.html}. + + \target property-command + \section1 \\property + + The \\property command is for documenting a Qt property. The + argument is the full property name. + + A property is defined using the Q_PROPERTY() macro. The macro + takes as arguments the property's name and its set, reset and get + functions. + + \code + Q_PROPERTY(QString state READ state WRITE setState) + \endcode + + The set, reset and get functions don't need to be documented, + documenting the property is sufficient. QDoc will generate a list + of the access function that will appear in the property + documentation which in turn will be located in the documentation + of the class that defines the property. + + The \\property command comment typically includes a \l + {brief-command} {\\brief} command. Forproperties the \l + {brief-command} {\\brief} command's argument is a sentence + fragment that will be included in a one line description of the + property. The command follows the same rules for the \l + {brief-property} {description} as the \l {variable-command} + {\\variable} command. + + \code + / *! + \property QPushButton::flat + \brief whether the border is disabled + + This property's default is false. + * / + \endcode + + QDoc includes this in \c {qpushbutton.html} like this: + + \quotation + \raw HTML + <h3>flat : bool</h3> + \endraw + + This property holds whether the border is disabled. + + This property's default is false. + + Access functions: + + \list + \li \b { bool isFlat () const} + \li \b { void setFlat ( bool )} + \endlist + + \endquotation + + \code + / *! + \property QWidget::width + \brief the width of the widget excluding any window frame + + See the \l {Window Geometry} documentation for an + overview of window geometry. + + \sa geometry, height, size + * / + \endcode + + QDoc includes this in \c {qwidget.html} like this: + + \quotation + \raw HTML + <h3>width : const int</h3> + \endraw + + This property holds the width of the widget excluding + any window frame. + + See the \l {Window Geometry} documentation for an + overview of window geometry. + + Access functions: + + \list + \li \b { int width () const} + \endlist + + See also \l{QWidget::geometry} {geometry}, + \l{QWidget::height} {height}, and \l{QWidget::size} {size}. + \endquotation + + \target service-command + \section1 \\service + + The \\service command tells QDoc that a class is a service class + and names the service. The command takes two arguments, the name + of the class and the name of the service. Currently, this command + is not used in the Qt documentation. + + \code + / *! + \service TimeService Time + ... + * / + class TimeService : public QCopObjectService + { + ... + } + \endcode + + See also \l {class-command} {\\class} and \l + {generatelist-command} {\\generatelist}. + + \target qmlattachedproperty-command + \section1 \\qmlattachedproperty + + The \\qmlattachedproperty command is for documenting a QML + property that will be attached to some QML element type. See + \l{http://doc.qt.nokia.com/4.7/qdeclarativeintroduction.html#attached-properties} + {Attached Properties}. The argument is the rest of the line. The + argument text should be the property type, followed by the QML + element name where the property is being declared, the \c{::} + qualifier, and finally the property name. If we have a QML + attached property named \c isCurrentItem in QML element \c ListView, + and the property has type \c {bool}, the \\qmlattachedproperty for + it would look like this: + + \code + / *! + \qmlattachedproperty bool ListView::isCurrentItem + This attached property is true if this delegate is the current + item; otherwise false. + + It is attached to each instance of the delegate. + + This property may be used to adjust the appearance of the current + item, for example: + + \snippet doc/src/snippets/declarative/listview/listview.qml isCurrentItem + * / + \endcode + + QDoc includes this attached property on the QML reference page for the + \l{http://doc.qt.nokia.com/4.7/qml-listview.html#isCurrentItem-prop} + {ListView} element. + + \target qmlattachedsignal-command + \section1 \\qmlattachedsignal + + The \\qmlattachedsignal command is for documenting an attachable + \l{http://doc.qt.nokia.com/4.7/qdeclarativeintroduction.html#signal-handlers} + {signal handler}. The \\qmlattachedsignal command is used just like + the \l{qmlsignal-command} {\\qmlsignal} command. + + The argument is the rest of the line. It should be the name of the + QML element where the signal handler is declared, the \c{::} + qualifier, and finally the signal handler name. If we have a QML + attached signal handler named \c onAdd() in the \c GridView + element, the \\qmlattachedsignal for it would look like this: + + \code + / *! + \qmlattachedsignal GridView::onAdd() + This attached handler is called immediately after an item is + added to the view. + * / + \endcode + + QDoc includes this documentation on the QML reference page for the + \l{http://doc.qt.nokia.com/4.7/qml-gridview.html#onAdd-signal} + {GridView} element. + + \target qmlbasictype-command + \section1 \\qmlbasictype + + The \\qmlbasictype command is for documenting a basic type for QML. + The argument is the type name. The type must be included in the + QML basic types group using the \l{ingroup-command}{\\ingroup} + command as shown below. This will cause QDoc to include the + documentation for the type on the + \l{http://doc.qt.nokia.com/4.7/qdeclarativebasictypes.html} + {QML Basic Types} page. The \l{brief-command} {\\brief} command + is also required, because it appears on the + \l{http://doc.qt.nokia.com/4.7/qdeclarativebasictypes.html} + {QML Basic Types} page as well. + + \code + / *! + \qmlbasictype int + \ingroup qmlbasictypes + + \brief An integer is a whole number, e.g. 0, 10, or -20. + + An integer is a whole number, e.g. 0, 10, or -20. The possible + \c int values range from around -2000000000 to around + 2000000000, although most elements will only accept a reduced + range (which they mention in their documentation). + + Example: + \qml + Item { width: 100; height: 200 } + \endqml + + \sa {QML Basic Types} + * / + \endcode + + QDoc outputs this as \l{http://doc.qt.nokia.com/4.7/qml-int.html} + {qml-int.html}. + + \target qmlclass-command + \section1 \\qmlclass + + The \\qmlclass command is for documenting a QML element that is + instantiated by a C++ class. The command has two arguments. The + first argument is the name of the QML element. The second argument + is the name of the C++ class that instantiates the QML element. + + \code + / *! + \qmlclass Transform QGraphicsTransform + \ingroup qml-transform-elements + \since 4.7 + \brief The Transform elements provide a way of building + advanced transformations on Items. + + The Transform element is a base type which cannot be + instantiated directly. The following concrete Transform types + are available: + + \list + \li \l Rotation + \li \l Scale + \li \l Translate + \endlist + + The Transform elements let you create and control advanced + transformations that can be configured independently using + specialized properties. + + You can assign any number of Transform elements to an \l + Item. Each Transform is applied in order, one at a time. + + * / + \endcode + + This example generates the + \l {http://doc.qt.nokia.com/4.7/qml-transform.html} {QML Transform + Element} page. The \\qmlclass comment should include the \l + {since-command} {\\since} command, because all QML elements are + new. It should also include the \l{brief-command} {\\brief} + command. And since every QML element is a member of a group of QML + elements, it should also include one or more \l{ingroup-command} + {\\ingroup} commands. + + \target qmlmethod-command + \section1 \\qmlmethod + + The \\qmlmethod command is for documenting a QML method. The + argument is the complete method signature, including return + type and parameter names and types. + + \code + / *! + \qmlmethod void TextInput::select(int start, int end) + + Causes the text from \a start to \a end to be selected. + + If either start or end is out of range, the selection is not changed. + + After calling this, selectionStart will become the lesser and + selectionEnd will become the greater (regardless of the order + passed to this method). + + \sa selectionStart, selectionEnd + * / + \endcode + + QDoc includes this documentation on the element refence page for the + \l{http://doc.qt.nokia.com/4.7/qml-textinput.html#select-method} + {TextInput} element. + + \target qmlproperty-command + \section1 \\qmlproperty + + The \\qmlproperty command is for documenting a QML property. The + argument is the rest of the line. The argument text should be the + property type, followed by the QML element name, the \c{::} + qualifier, and finally the property name. If we have a QML + property named \c x in QML element \c Translate, and the property + has type \c {real}, the \\qmlproperty for it would look like this: + + \code + / *! + \qmlproperty real Translate::x + + The translation along the X axis. + * / + \endcode + + QDoc includes this QML property on the QML reference page for the + \l {http://doc.qt.nokia.com/4.7/qml-translate.html} {Translate} + element. + + \target qmlsignal-command + \section1 \\qmlsignal + + The \\qmlsignal command is for documenting a + \l{http://doc.qt.nokia.com/4.7/qdeclarativeintroduction.html#signal-handlers} + {signal handler}. + The argument is the rest of the line. It should be the QML element where the + signal handler is declared, the \c{::} qualifier, and finally the signal + handler name. If we have a QML signal handler named \c onAdd() in QML + element \c MouseArea, the \\qmlsignal for it would look like this: + + \code + / *! + \qmlsignal MouseArea::onEntered() + + This handler is called when the mouse enters the mouse area. + + By default the onEntered handler is only called while a button is + pressed. Setting hoverEnabled to true enables handling of + onEntered when no mouse button is pressed. + + \sa hoverEnabled + * / + \endcode + + QDoc includes this documentation on the QML reference page for the + \l{http://doc.qt.nokia.com/4.7/qml-mousearea.html#onEntered-signal} + {MouseArea} element. + + \target qmlmodule-command + \section1 \\qmlmodule + + Insert the \c{\\qmlmodule} command to create a \c QML module page. A QML + module is a collection of QML components or any related material. This + command is similar to the \l{group-command}. + + A QML class may belong to a module by inserting the + \l{inqmlmodule-command}{\\inqmlmodule} command as a topic command. + Every member of a group must be linked to using the module name and two + colons (\c{::}). + + \code + A link to the UI Component's TabWidget is \l {UIComponent::TabWidget}. + \endcode + + QDoc will generate a page for the module with a listing of the members + of the module. + + \code + \qmlmodule ClickableComponents + + This is a list of the Clickable Components set. A Clickable component + responds to a \c clicked() event. + \endcode + + The \l{componentset}{UIComponents} example demonstrates proper usage of + QDoc commands to document QML components and QML modules. + + \target inqmlmodule-command + \section1 \\inqmlmodule + + A QML class may belong to a \l{qmlmodule-command}{QML module} by inserting + the \l{inqmlmodule-command}{\\inqmlmodule} command as a topic command. + Every member of a group must be linked to using the module name and two + colons (\c{::}). + + \code + \qmlclass ClickableButton + \inqmlmodule ClickableComponents + + A clickable button that responds to the \c click() event. + \endcode + + To link to the \c ClickableButton, use the + \c{\l ClickableComponents::ClickableButton} format. + + The \l{componentset}{UIComponents} example demonstrates proper usage of + QDoc commands to document QML components and QML modules. + + \target typedef-command + \section1 \\typedef + + The \\typedef command is for documenting a C++ typedef. The + argument is the name of the typedef. The documentation for + the typedef will be included in the refernece documentation + for the class, namespace, or header file in which the typedef + is declared. To relat the \\typedef to a class, namespace, or + header file, the \\typedef comment must contain a + \l {relates-command} {\\relates} command. + + \code + / *! + \typedef QObjectList + \relates QObject + + Synonym for QList<QObject>. + * / + \endcode + + QDoc includes this in \c {qobject.html} as: + + \quotation + \raw HTML + <h3>typedef QObjectList</h3> + \endraw + + Synonym for QList<QObject>. + \endquotation + + Another, although more rare, example: + + \code + / *! + \typedef QMsgHandler + \relates QtGlobal + + This is a typedef for a pointer to a function with the + following signature: + + \code + void myMsgHandler(QtMsgType, const char *); + \ endcode + + \sa QtMsgType, qInstallMsgHandler() + * / + \endcode + + QDoc includes this in \c {qtglobal.html} as: + + \quotation + \raw HTML + <h3>typedef QtMsgHandler</h3> + \endraw + + This is a typedef for a pointer to a function with the + following signature: + + \raw HTML + <tt> + <pre> void myMsgHandler(QtMsgType, const char *);</pre> + </tt> + \endraw + + See also QtMsgType and qInstallMsgHandler(). + \endquotation + + Other typedefs are located on the reference page for the class + that defines them. + + \code + / *! + \typedef QLinkedList::Iterator + + Qt-style synonym for QList::iterator. + * / + \endcode + + QDoc includes this one on the reference page for class QLinkedList as: + + \quotation + \raw HTML + <h3>typedef QLinkedList::Iterator</h3> + \endraw + + Qt-style synonym for QList::iterator. + \endquotation + + \target variable-command + \section1 \\variable + + The \\variable command is for documenting a class member variable + or a constant. The argument is the variable or constant name. The + \\variable command comment includes a \l {brief-command} {\\brief} + command. QDoc generates the documentation based on the text from + \\brief command. + + The documentation will be located in the in the associated class, + header file or namespace documentation. + + In case of a member variable: + + \code + / *! + \variable QStyleOption::palette + \brief the palette that should be used when painting + the control + * / + \endcode + + QDoc includes this in qstyleoption.html as: + + \quotation + \raw HTML + <h3> + <a href="http://qt.nokia.com/doc/4.0/qpalette.html"> + QPalette + </a> + QStyleOption::palette + </h3> + \endraw + + This variable holds the palette that should be used + when painting the control. + \endquotation + + You can also document constants with the \\variable command. For + example, suppose you have the \c Type and \c UserType constants in + the QTreeWidgetItem class: + + \code + enum { Type = 0, UserType = 1000 }; + \endcode + + For these, the \\vaqriable command can be used this way: + + \code + / *! + \variable QTreeWidgetItem::Type + + The default type for tree widget items. + + \sa UserType, type() + * / + \endcode + \code + / *! + \variable QTreeWidgetItem::UserType + + The minimum value for custom types. Values below + UserType are reserved by Qt. + + \sa Type, type() + * / + \endcode + + QDoc includes these in qtreewidget.html as: + + \quotation + \raw HTML + <h3> + const int QTreeWidgetItem::Type + </h3> + \endraw + + The default type for tree widget items. + + See also \l {QTreeWidgetItem::UserType} {UserType} and \l + {QTreeWidgetItem::type()} {type()}. + + \raw HTML + <h3> + const int QTreeWidgetItem::UserType + </h3> + \endraw + + The minimum value for custom types. Values below + UserType are reserved by Qt. + + See also \l {QTreeWidgetItem::Type} {Type} and + \l{QTreeWidgetItem::type()} {type()}. + + \endquotation +*/ + +/*! + \page 14-qdoc-commands-contextcommands.html + \previouspage Topic Commands + \contentspage Table of Contents + \nextpage Document Navigation + + \title Context Commands + + The context commands provide information about the element being + documented that QDoc can't deduce on its own. e.g. Is a class + thread-safe? Is a function reentrant? Which module is the class a + member of? Context commands can appear anywhere in a QDoc comment, + but they are normally placed near the top of the comment, just + below the \l {Topic Commands} {topic} command. + + \list + \li \l {16-qdoc-commands-status.html#compat-command}{\\compat}, + \li \l {15-qdoc-commands-navigation.html#contentspage-command}{\\contentspage}, + \li \l {15-qdoc-commands-navigation.html#indexpage-command}{\\indexpage}, + \li \l {19-qdoc-commands-grouping.html#ingroup-command}{\\ingroup}, + \li \l {18-qdoc-commands-relating.html#inherits-command}{\\inherits}, + \li \l {19-qdoc-commands-grouping.html#inmodule-command}{\\inmodule}, + \li \l {16-qdoc-commands-status.html#internal-command}{\\internal}, + \li \l {19-qdoc-commands-grouping.html#mainclass-command}{\\mainclass}, + \li \l {15-qdoc-commands-navigation.html#nextpage-command}{\\nextpage}, + \li \l {17-qdoc-commands-thread.html#nonreentrant-command}{\\nonreentrant}, + \li \l {16-qdoc-commands-status.html#obsolete-command}{\\obsolete}, + \li \l {18-qdoc-commands-relating.html#overload-command}{\\overload}, + \li \l {16-qdoc-commands-status.html#preliminary-command}{\\preliminary}, + \li \l {15-qdoc-commands-navigation.html#previouspage-command}{\\previouspage}, + \li \l {17-qdoc-commands-thread.html#reentrant-command}{\\reentrant}, + \li \l {18-qdoc-commands-relating.html#reimp-command}{\\reimp}, + \li \l {18-qdoc-commands-relating.html#relates-command}{\\relates}, + \li \l {16-qdoc-commands-status.html#since-command}{\\since}, + \li \l {15-qdoc-commands-navigation.html#startpage-command}{\\startpage}, + \li \l {20-qdoc-commands-namingthings.html#subtitle-command}{\\subtitle} + \li \l {17-qdoc-commands-thread.html#threadsafe-command}{\\threadsafe}, + \li \l {20-qdoc-commands-namingthings.html#title-command}{\\title} + \endlist + +*/ + +/*! + \page 15-qdoc-commands-navigation.html + \previouspage Context Commands + \contentspage Table of Contents + \nextpage Reporting Status + + \title Document Navigation + + The navigation commands are for linking the pages of a document in + a meaningful sequence. Below is a sequence of QDoc comments that + shows a typical use of the navigation commands. + + \section1 Example + + \code + / *! + \page basicqt.html + \contentspage {Basic Qt} {Contents} + \nextpage Getting Started + + \indexpage Index + \startpage Basic Qt + + \title Basic Qt + + The Qt toolkit is a C++ class library and a set of tools for + building multiplatform GUI programs using a "write once, + compile anywhere approach". + + Table of contents: + + \list + \li \l {Getting Started} + \li \l {Creating Dialogs} + \li \l {Creating Main Windows} + \endlist + * / + + / *! + \page gettingstarted.html + \previouspage Basic Qt + \contentspage {Basic Qt} {Contents} + \nextpage Creating Dialogs + + \indexpage Index + \startpage Basic Qt + + \title Getting Started + + This chapter shows how to combine basic C++ with the + functionality provided by Qt to create a few small graphical + interface (GUI) applications. + * / + + / *! + \page creatingdialogs.html + \previouspage Getting Started + \contentspage {Basic Qt} {Contents} + + \indexpage Index + \startpage Basic Qt + + \title Creating Dialogs + + This chapter will teach you how to create dialog boxes using Qt. + * / + + / *! + \page index.html + + \indexpage Index + \startpage Basic Qt + + \title Index + + \list + \li \l {Basic Qt} + \li \l {Creating Dialogs} + \li \l {Getting Started} + \endlist + * / + \endcode + + QDoc renders the "Getting Started" page in \c{creatingdialogs.html}: + + \quotation + \raw HTML + <table border="0" cellpadding="0" cellspacing="5" width="100%"> + + <tr> + <p> + [Previous: <a href="15-qdoc-commands-navigation.html#deadlink"> + Basic Qt</a>] + [<a href="15-qdoc-commands-navigation.html#deadlink">Contents</a>] + [Next: <a href="15-qdoc-commands-navigation.html#deadlink"> + Creating Dialogs</a>] + </p> + + <h1 align="center">Getting Started<br /></h1> + + <p> + This chapter shows how to combine basic C++ with the + functionality provided by Qt to create a few small graphical + interface (GUI) applications. + </p> + + <p> + [Previous: <a href="15-qdoc-commands-navigation.html#deadlink"> + Basic Qt</a>] + [<a href="15-qdoc-commands-navigation.html#deadlink">Contents</a>] + [Next: <a href="15-qdoc-commands-navigation.html#deadlink"> + Creating Dialogs</a>] + </p> + + </table> + \endraw + \endquotation + + The \l {indexpage-command} {\\indexpage} and \l + {startpage-command} {\\startpage} commands create links to the + page's index page and start page. These links can be used by + browsers and search engines. + + The index page is typically an alphabetical list of the document's + titles and topics, while the start page is the page considered by + the author to be the starting point of a multipage document. + + The links are included in the generated HTML source code but have + no visual effect on the documentation: + + \code + <head> + ... + <link rel="index" href="index.html" /> + <link rel="start" href="basicqt.html" /> + ... + </head> + \endcode + + \section1 Commands + + \target previouspage-command + \section2 \\previouspage + + The \\previouspage command links the current page to the previous + page in a sequence.a The command has two arguments, each enclosed + by curly braces: The first is the link target, i.e. the title of + the previous page, the second is the link text. If the page's + title is equivalent to the link text, the second argument can be + omitted. + + The command must stand alone on its own line. + + \target nextpage-command + \section2 \\nextpage + + The \\nextpage command links the current page to the next page in + a sequence. The command follows the same syntax and argument + convention as the \l {previouspage-command} {\\previouspage} + command. + + \target startpage-command + \section2 \\startpage + + The \\startpage command specifies the first page of a sequence of + pages. The command must stand alone on its own line, and its + unique argument is the title of the first document. + + QDoc will generate a link to the start page and include it in the + generated HTML file, but this has no visual effect on the + documentation. The generated link type tells browsers and search + engines which document is considered by the author to be the + starting point of the collection. + + \target contentspage-command + \section2 \\contentspage + + The \\contentspage command links the current page to a table of + contents page. The command follows the same syntax and argument + convention as the \l {previouspage-command} {\\previouspage} + command. + + \target indexpage-command + \section2 \\indexpage + + The \\indexpage command specifies an index page for the current + document. The command must stand alone on its own line, and its + unique argument is the title of the index document. + + QDoc will generate a link to the index page and include it in the + generated HTML file, but this has no visual effect on the + documentation. The generated link type tells browsers and search + engines which document is considered by the author to be the + index page of the collection. +*/ + +/*! + \page 16-qdoc-commands-status.html + \previouspage Document Navigation + \contentspage Table of Contents + \nextpage Thread Support + + \title Reporting Status + + These commands are for indicating that a documented element is + still under development, is becoming obsolete, is provided for + compatibility reasons, or is simply not to be included in the + public interface. The \l {since-command}{\\since} command is for + including information about the version when a function or class + first appeared. + + \target compat-command + \section1 \\compat + + The \\compat command is for indicating that a class or function is + part of the support library provided to keep old source code + working. + + The command must stand on its own line. + + Usually an equivalent function or class is provided as an + alternative. + + If the command is used in the documentation of a class, the + command expands to a warning that the referenced class is part of + the support library. The warning is located at the top of the + documentation page. + + \code + / *! + \class MyQt3SupportClass + \compat + * / + \endcode + + QDoc renders this at the top of the MyQt3SupportClass class + reference page. + + \quotation + \b {This class is part of the Qt 3 support + library.} It is provided to keep old source code + working. We strongly advise against using it in new + code. See the \l + {http://qt.nokia.com/doc/4.0/porting4.html} {Porting + Guide} for more information. + \endquotation + + If the command is used when documenting a function, QDoc will + create and link to a separate page documenting Qt 3 support + members when generating the reference documentation for the + associated class. + + \code + / *! + \fn MyClass::MyQt3SupportMemberFunction + \compat + + Use MyNewFunction() instead. + * / + \endcode + + QDoc renders this in \c{myclass-qt3.html} as: + + \quotation + \raw HTML + <h1>Qt 3 Support Members for MyClass</h1> + \endraw + + \b {The following class members are part of the Qt 3 + support layer.} They are provided to help you port old code to + Qt 4. We advise against using them in new code. + + ... + + \list + \li void MyQt3SupportMemberFunction() + \li ... + \endlist + + \raw HTML + <hr /> + <h2>Member Function Documentation</h2> + <h3>void MyQt3SupportMemberFunction ()</h3> + <p>Use MyNewFunction() instead.</p> + \endraw + ... + \endquotation + + \target default-command + \section1 \\default + + The \\default command is for marking a QML property as the + \l {http://doc.qt.nokia.com/4.7/qdeclarativeintroduction.html#default-properties} + {default property}. The word \span {class="newStuff"} {default} is shown in red in + the documentation of the property. + + \code + / *! + \qmlproperty list<Change> State::changes + This property holds the changes to apply for this state + \default + + By default these changes are applied against the default state. If the state + extends another state, then the changes are applied against the state being + extended. + * / + \endcode + + See how QDoc renders this property on the reference page for the + \l {http://doc.qt.nokia.com/4.7/qml-state.html#changes-prop} {State} + element. + + \target obsolete-command + \section1 \\obsolete + + The \\obsolete command is for indicating that a function is being + deprecated, and it should no longer be used in new code. There is + no guarantee for how long it will remain in the library. + + The command must stand on its own line. + + When generating the reference documentation for a class, QDoc will + create and link to a separate page documenting its obsolete + functions. Usually an equivalent function is provided as an + alternative. + + \code + / *! + \fn MyClass::MyObsoleteFunction + \obsolete + + Use MyNewFunction() instead. + * / + \endcode + + QDoc renders this in \c{myclass-obsolete.html} as: + + \quotation + \raw HTML + <h1>Obsolete Members for MyClass</h1> + \endraw + + \b {The following class members are obsolete.} They are + provided to keep old source code working. We strongly advise + against using them in new code. + + ... + + \list + \li void MyObsoleteFunction() \c (obsolete) + \li ... + \endlist + + \raw HTML + <hr /> + <h2>Member Function Documentation</h2> + <h3>void MyObsoleteFunction ()</h3> + <p>Use MyNewFunction() instead.</p> + \endraw + ... + \endquotation + + \target internal-command + \section1 \\internal + + The \\internal command indicates that the referenced + function is not part of the public interface. + + The command must stand on its own line. + + QDoc ignores the documentation as well as the documented item, + when generating the associated class reference documenation. + + \code + / *! + \internal + + Tries to find the decimal separator. If it can't find + it and the thousand delimiter is != '.' it will try to + find a '.'; + * / + int QDoubleSpinBoxPrivate::findDelimiter + (const QString &str, int index) const + { + int dotindex = str.indexOf(delimiter, index); + if (dotindex == -1 && thousand != dot && delimiter != dot) + dotindex = str.indexOf(dot, index); + return dotindex; + } + \endcode + + This function will not be included in the documentation. + + \target preliminary-command + \section1 \\preliminary + + The \\preliminary command is for indicating that a referenced + function is still under development. + + The command must stand on its own line. + + The \\preliminary command expands to a notification in the + function documentation, and marks the function as preliminary when + it appears in lists. + + \code + / *! + \preliminary + + Returns information about the joining properties of the + character (needed for certain languages such as + Arabic). + * / + QChar::Joining QChar::joining() const + { + return ::joining(*this); + } + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h3> + <a href="http://qt.nokia.com/doc/4.0/qchar.html#Joining-enum">Joining</a> + QChar::joining () const</h3> + \endraw + + \b {This function is under development and + subject to change.} + + Returns information about the joining properties of the + character (needed for certain languages such as + Arabic). + \endquotation + + And the function's entry in QChar's list of functions will be + rendered as: + + \quotation + \list + \li ... + \li Joining + \l {http://qt.nokia.com/doc/4.0/qchar.html#Joining-enum} + {joining}() + const \c (preliminary) + \li ... + \endlist + \endquotation + + \target since-command + \section1 \\since + + The \\since command tells in which minor release + the associated functionality was added. + + \code + / *! + \since 4.1 + + Returns an icon for \a standardIcon. + + ... + + \sa standardIconImplementation(), standardPixmap() + * / + QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option, const QWidget *widget) const + { + } + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h3>QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option, const QWidget *widget) const</h3> + \endraw + + This function was introduced in Qt version 4.1 + + Returns an icon for \a standardIcon. + + ... + + See also \l {QStyle::standardIconImplementation()} + {standardIconImplementation()} and \l + {QStyle::standardPixmap()} {standardPixmap()}. + \endquotation + + QDoc generates the "Qt" reference from the \l + {25-qdoc-configuration-derivedprojects.html#project} {\c project} + configuration variable. For that reason this reference will change + according to the current documentation project. + + See also \l {25-qdoc-configuration-derivedprojects.html#project} + {\c project}. +*/ + +/*! + \page 17-qdoc-commands-thread.html + \previouspage Reporting Status + \contentspage Table of Contents + \nextpage Relating Things + + \title Thread Support + + The thread support commands are for specifying the level of + support for multithreaded programming in a class or function. + There are three levels of support: \c threadsafe, \c reentrant and + \c nonreentrant. + + The default is \c nonreentrant which means that the associated + class or function cannot be called by multiple threads. \c + Reentrant and \c threadsafe are levels primarily used for classes. + + \c Reentrant means that all the functions in the referenced class + can be called simultaneously by multiple threads, provided that + each invocation of the functions reference unique data. While \c + threadsafe means that all the functions in the referenced class + can be called simultaneously by multiple threads even when each + invocation references shared data. + + When a class is marked \l {reentrant-command} {\\reentrant} or \l + {threadsafe-command} {\\threadsafe}, functions in that class can + be marked \c nonreentrant using the \l {nonreentrant-command} + {\\nonreentrant} command. + + \section1 Example + + \target reentrant-example + \code + / *! + \class QLocale + \brief The QLocale class converts between numbers and their + string representations in various languages. + + \reentrant + \ingroup i18n + \ingroup text + \mainclass + + QLocale is initialized with a language/country pair in its + constructor and offers number-to-string and string-to-number + conversion functions similar to those in QString. + + ... + * / + + / *! + \nonreentrant + + Sets the global default locale to \a locale. These values are + used when a QLocale object is constructed with no + arguments. If this function is not called, the system's locale + is used. + + \warning In a multithreaded application, the default locale + should be set at application startup, before any non-GUI + threads are created. + + \sa system() c() + * / + void QLocale::setDefault(const QLocale &locale) + { + default_d = locale.d; + } + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h1><center>QLocale Class Reference</center></h1> + \endraw + + The QLocale class converts between numbers and their string + representations in various languages. More... + + \code + #include <QLocale> + \endcode + + \b {Note:} All the functions in this class are \l + {threads.html#reentrant} {reentrant}, except \l + {QLocale::setDefault()} {setDefault()}. + + ... + + \raw HTML + <hr /> + <h2>Member Type Documentation</h2> + \endraw + + ... + + \raw HTML + <h3>void QLocale::setDefault ( const QLocale & locale ) </h3> + \endraw + + Sets the global default locale to locale. These values are + used when a QLocale object is constructed with no + arguments. If this function is not called, the system's locale + is used. + + \warning In a multithreaded application, the default locale + should be set at application startup, before any non-GUI + threads are created. + + \warning This function is not reentrant. + + See also \l {QLocale::system()} {system()} and \l + {QLocale::c()} {c()}. + + ... + \endquotation + + As shown above, QDoc generates a notification when a class is + declared reentrant, and lists the exceptions (the declared + nonreentrant functions). A link to the general documentation on \l + {threads.html#reentrant} {reentrancy and thread-safety} is + included. In addition a warning, "\b Warning: This function is + not reentrant.", is generated in the nonreentrant functions' + documentation. + + QDoc will generate the same notification and warnings when a class + is declared threadsafe. + + For more information see the general documentation on \l + {threads.html#reentrant} {reentrancy and thread-safety}. + + \section1 Commands + + \target threadsafe-command + \section2 \\threadsafe + + The \\threadsafe command includes a line in the documentation to + indicate that the associated class or function is \e threadsafe + and can be called simultaneously by multiple threads, even when + separate invocations reference shared data. + + The command must stand on its own line. + + The documentation generated from this command will be similar to + the what is generated for the \l {reentrant-command} {\\reentrant} + command. See the example above in the \l {reentrant-example} + {introduction}. + + See also \l{reentrant-command} {\\reentrant} and + \l{nonreentrant-command} {\\nonreentrant}. + + \target reentrant-command + \section2 \\reentrant + + The \\reentrant command indicates that the associated class or + function can be called simultaneously by multiple threads, + provided that each invocation references its own data. See the \l + {reentrant-example} {example} above. + + The command must stand on its own line. + + See also \l{nonreentrant-command} {\\nonreentrant} and + \l{threadsafe-command} {\\threadsafe}. + + \target nonreentrant-command + \section2 \\nonreentrant + + The \\nonreentrant command indicates that the associated class or + function cannot be called by multiple threads. Nonreentrant is the + default case. + + The command must stand on its own line. + + When a class is marked \l {reentrant-command} {\\reentrant} or \l + {threadsafe-command} {\\threadsafe}, functions in that class can + be marked \c nonreentrant using this command in the \l{fn-command} + {\\fn} comment of the functions to be excluded. + + See also \l{reentrant-command} {\\reentrant} and + \l{threadsafe-command} {\\threadsafe}. +*/ + +/*! + \page 18-qdoc-commands-relating.html + \previouspage Thread Support + \contentspage Table of Contents + \nextpage Grouping Things + + \title Relating Things + + The relating commands are for specifying how one documented + element relates to another documented element. e.g., This function + is an overload of another function, or this function is a + reimplementation of another function, or this typedef is \e + related to some class or header file. There is also a command + for documenting that a QML element inherits some other QML + element. + + \section1 Commands + + \target inherits-command + \section2 \\inherits + + The \\inherits command is for documenting that one QML element + inherits some other QML element. It must be included in the + inheriting element's \l{qmlclass-command}{\\qmlclass} comment. + The argument is the name of the inherited QML element. + + \code + / *! + \qmlclass PauseAnimation QDeclarativePauseAnimation + \ingroup qml-animation-transition + \since 4.7 + \inherits Animation + \brief The PauseAnimation element provides a pause for an animation. + + When used in a SequentialAnimation, PauseAnimation is a step + when nothing happens, for a specified duration. + + A 500ms animation sequence, with a 100ms pause between two animations: + + SequentialAnimation { + NumberAnimation { ... duration: 200 } + PauseAnimation { duration: 100 } + NumberAnimation { ... duration: 200 } + } + + \sa {QML Animation and Transitions}, {declarative/animation/basics}{Animation basics example} + * / + \endcode + + QDoc includes this line on the reference page for the + \l{http://doc.qt.nokia.com/4.7/qml-pauseanimation.html} {PauseAnimation} + element: + + \quotation + Inherits \l{http://doc.qt.nokia.com/4.7/qml-animation.html} {Animation} + \endquotation + + \target overload-command + \section2 \\overload + + The \\overload command is for indicating that a function is a + secondary overload of its name. + + The command must stand on its own line. + + For a function name that is overloaded (except constructors), QDoc + expects one primary version of the function, and all the others + marked with the \b {\\overload command}. The primary version + should be fully documented. Each overload can have whatever extra + documentation you want to add for just that overloaded version. + + From Qt 4.5, you can include the function name plus '()' as a + parameter to the \b{\\overload} command, which will include a + standard \e{This function overloads...} line of text with a link + to the documentation for the primary version of the function. + + \code + / *! + \overload addAction() + + This convenience function creates a new action with an + \a icon and some \a text. The function adds the newly + created action to the menu's list of actions, and + returns it. + + \sa QWidget::addAction() + * / + QAction *QMenu::addAction(const QIcon &icon, const QString &text) + { + QAction *ret = new QAction(icon, text, this); + addAction(ret); + return ret; + } + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h3><a href="http://qt.nokia.com/doc/4.0/qaction.html">QAction</a> + * QMenu::addAction ( const QIcon & <i>icon</i>, + const QString & <i>text</i> ) + </h3> + \endraw + + This function overloads \l {http://qt.nokia.com/doc/4.0/qwidget.html#addAction} {addAction()} + + This convenience function creates a new action with an + \e icon and some \e text. The function adds the newly + created action to the menu's list of actions, and + returns it. + + See also + \l {http://qt.nokia.com/doc/4.0/qwidget.html#addAction} + {QWidget::addAction}(). + \endquotation + + If you don't include the function name with the \b{\\overlaod} + command, then instead of the "This function overloads..." line + with the link to the documentation for the primary version, you + get the old standard line: + + \quotation + This is an overloaded member function, provided for + convenience. + \endquotation. + + \target reimp-command + \section2 \\reimp + + The \\reimp command is for indicating that a function is a + reimplementation of a virtual function. + + The command must stand on its own line. + + QDoc will omit the reimplemented function from the class + reference. + + \code + / *! + \reimp + * / + void QToolButton::nextCheckState() + { + Q_D(QToolButton); + if (!d->defaultAction) + QAbstractButton::nextCheckState(); + else + d->defaultAction->trigger(); + } + \endcode + + This function will not be included in the documentation. Instead, + a link to the base function QAbstractButton::nextCheckState() will + appear in the documentation. + + \target relates-command + \section2 \\relates + + The \\relates command is for including the documentation of a + global element to some class or header file. The argument is a + class name or header file. + + \code + / *! + \relates QChar + + Reads a char from the stream \a in into char \a chr. + + \sa {Format of the QDataStream operators} + * / + QDataStream &operator>>(QDataStream &in, QChar &chr) + { + quint16 u; + in >> u; + chr.unicode() = ushort(u); + return in; + } + \endcode + + The documentation for this function will be included on the reference page + for class QChra. +*/ + +/*! + \page 19-qdoc-commands-grouping.html + \previouspage Relating Things + \contentspage Table of Contents + \nextpage Naming Things + + \title Grouping Things + + The grouping commands relate classes to defined groups and + modules. The groups are used when generating lists of related + classes in the documentation, while the modules are elements of + Qt's structure. + + \section1 Commands + + \target mainclass-command + \section2 \\mainclass + + The \\mainclass command relates the documented class to + a group called mainclasses. + + The command must stand on its own line. + + \code + / *! + \class QWidget qwidget.h + \brief The QWidget class is the base class of + all user interface objects. + + \mainclass + + ... + * / + \endcode + + This will include the QWidget class in the \e mainclasses + group, which means, for example, that the class will appear on the + list created by calling the \l {generatelist-command} + {\\generatelist} command with the \c mainclasses argument: + + \l http://qt.nokia.com/doc/4.0/mainclasses.html + + \note The Qt documentation no longer includes the \e mainclasses + page. + + See also \l {generatelist-command} {\\generatelist}. + + \target ingroup-command + \section2 \\ingroup + + The \\ingroup command indicates that the given + overview or documented class belongs to a certain group of + related docmentation. + + A class or overview may belong to many groups. + + The \\ingroup command's argument is a group name, but note + that the command considers the rest of the line as part of + its argument. Make sure that the group name is followed by + a linebreak. + + \code + / *! + \class QDir + \brief The QDir class provides access to directory + structures and their contents. + + \ingroup io + ... + * / + \endcode + + This will include the QDir class in the \c io group, which means, + for example, that QDir will appear on the list created by calling + the \l {group-command} {\\group} command with the \c io argument. + + To list overviews that are related to a certain group, you must + generate the list explicitly using the \l {generatelist-command} + {\\generatelist} command with the \c related argument. + + See also \l {group-command} {\\group}. + + \target inmodule-command + \section2 \\inmodule + + The \\inmodule command relates a class to the module specified by + the command's argument. + + For the basic classes in Qt, a class's module is determined by its + location, i.e. its directory. However, for extensions, like + ActiveQt and Qt Designer, a class must be related to a module + explicitly. + + The command's argument is a module name, but note that the command + considers the rest of the line as part of its argument. Make sure + that the module name is followed by a linebreak. + + \code + /*! + \class QDesignerTaskMenuExtension + \inmodule QtDesigner + * / + \endcode + + This ensures that the QDesignerTaskMenuExtension class is included + in the \c QtDesigner module, which means, for example, that the + class will appear on the list created by calling the \l + {generatelist-command} {\\generatelist} command with the \c + {{classesbymodule QtDesigner}} argument. + + See also \l {module-command} {\\module} and \l + {generatelist-command} {\\generatelist}. +*/ + +/*! + \page 20-qdoc-commands-namingthings.html + \previouspage Grouping Things + \contentspage Table of Contents + \nextpage Markup Commands + + \title Naming Things + + In general, a title command considers everything that follows it + until the first line break as its argument. If the title is so + long it must span multiple lines, end each line (except the last + one) with a backslash. + + \section1 Commands + + \target title-command + \section2 \\title + + The \\title command sets the title for a documentation page, or + allows you to override it. + + \code + / *! + \page signalandslots.html + + \title Signals & Slots + + Signals and slots are used for communication between + objects. The signals and slots mechanism is a central + feature of Qt and probably the part that differs most + from the features provided by other frameworks. + + ... + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h1><center>Signal and Slots</center></h1> + \endraw + + Signals and slots are used for communication between + objects. The signals and slots mechanism is a central + feature of Qt and probably the part that differs most + from the features provided by other frameworks. + ... + \endquotation + See also \l {subtitle-command} {\\subtitle}. + + \target subtitle-command + \section2 \\subtitle + + The \\subtitle command sets a subtitle for a documentation page. + + \code + / *! + \page qtopiacore-overview.html + + \title Qtopia Core + \subtitle Qt for Embedded Linux + + Qt/Embedded, the embedded Linux port of Qt, is a + complete and self-contained C++ GUI and platform + development tool for Linux-based embedded development. + ... + * / + \endcode + + QDoc renders this as: + + \quotation + \raw HTML + <h1><center>Qtopia Core</center></h1> + <h2><center>Qt for Embedded Linux</center></h2> + \endraw + + Qt/Embedded, the embedded Linux port of Qt, is a + complete and self-contained C++ GUI and platform + development tool for Linux-based embedded development. + ... + \endquotation + + See also \l {title-command} {\\title}. + +*/ + +/*! + \page 21-0-qdoc-creating-dita-maps.html + \previouspage Miscellaneous + \contentspage Table of Contents + \nextpage The QDoc Configuration File + + \title Creating DITA Maps + + You can create DITA map files using three new qdoc commands, the \l{ditamap-command} + {ditamap} command, the \l{topicref-command} {topicref} command, and the \l{mapref-command} + {mapref} command. How these DITA maps will be used automatically or manually by the + documentation build process is still under consideration. This section will be updated + as the decisions are made. + + \section1 What is a DITA map? + + A complete description of DITA can be found at the + \l{http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=dita} + {OASIS Darwin Information Typing Architecture} site. + + An explanation of the DITA map is found at that site + \l{http://docs.oasis-open.org/dita/v1.2/os/spec/langref/map.html}{here}. + + \target ditamap-command + \section1 \\ditamap + + The \\ditamap command is for creating a DITA map using qdoc commands. + The \\ditamap command is a kind of \\page command that produces a + \e{.ditamap} instead of a \e{.html} or \e{.xml} file. The file that + is created actually contains XML text, but the \e{.ditamap} suffix is + used to identify the file as containing a DITA MAP. + + The argument is the name of the the file to be created. In the following + example, the file \e{creator.ditamap} is output: + \code + \ditamap creator.ditamap + \endcode + + \target topicref-command + \section1 \\topicref \\endtopicref + + The \\topicref \\endtopicref commands are for creating a topicref + in the ditamap. The \\endtopicref command is required because + \\topicref commands can be nested. + + \\topicref has two arguments. The first argument becomes the value + of the \e navtitle attribute. Normally, you use the title of the + topic being referenced. This title is often what will appear in a + table of contents constructed from the ditamap. + + The second argument is the name of the page being referenced. The + second argument is actually optional, for example if you are using + a topicref as a container for other topicrefs and maprefs. It is + also optional if you want qdoc to find the page name for you by + looking up the title in its internal data structure. It is recommended + that you provide the second parameter if you know the page name. + + \code + \topicref {QML Module QtQuick 2} {qtquick-2.xml} + \mapref {Creator Manual} {creator-manual.ditamap} \endmapref + \topicref {QML Mouse Events} {qtquick2-mouseevents.xml} \endtopicref + \topicref {Property Binding} {qtquick2-propertybinding.xml} \endtopicref + \endtopicref + \endcode + + \target mapref-command + \section1 \\mapref + + The \\mapref command is for creating a mapref in the ditamap. A + mapref refers to another ditamap, which you want to include in + your ditamap. Like the \\topicref command, the \\mapref command + has two arguments, but for the \\mapref command, both arguments + are required. The arguments are essentially the same as described + for \\topicref, but for \\mapref, the second command must be the + name of another ditamap, i.e. it must have the \e{.ditamap} + suffix. You must provide the file name. qdoc can't look up the + file name for you. + + \code + \mapref {Creator Manual} {creator-manual.ditamap} \endmapref + \endcode + + \section1 An example ditamap page + + The following example uses the three qdoc ditamap commands described above. + + \code + \ditamap creator.ditamap + \title The DITA Map For Creator + + \topicref {QML Module QtQuick 1} + \topicref {QML Mouse Events} \endtopicref + \topicref {Property Binding} \endtopicref + \endtopicref + + \topicref {QML Module QtQuick 2} {qtquick-2.xml} + \mapref {Creator Manual} {creator-manual.ditamap} \endmapref + \topicref {QML Mouse Events} {qtquick2-mouseevents.xml} \endtopicref + \topicref {Property Binding} {qtquick2-propertybinding.xml} \endtopicref + \endtopicref + + \topicref {QML Module QtQuick.Particles 2} {qtquick-particles-2.xml} + \topicref {Age} {qml-qtquick-particles2-age.xml} \endtopicref + \endtopicref + \endcode + + \section1 The resulting ditamap file + + This is the \e{.ditamap} file you get when you input the qdoc + ditamap page shown above. Note that you can write ditamap files + directly in XML just as easily as you can write them using the + qdoc commands. The choice is yours. + + \code + <?xml version="1.0" encoding="UTF-8"?> + <!DOCTYPE map PUBLIC "-//OASIS//DTD DITA Map//EN" "map.dtd"> + <map> + <topicmeta> + <shortdesc>The DITA Map For Creator</shortdesc> + </topicmeta> + <topicref navtitle="QML Module QtQuick 1" href="qtquick-1.xml"> + <topicref navtitle="QML Mouse Events" href="qtquick2-mouseevents.xml"/> + <topicref navtitle="Property Binding" href="qtquick2-propertybinding.xml"/> + </topicref> + <topicref navtitle="QML Module QtQuick 2" href="qtquick-2.xml"> + <mapref navtitle="Creator Manual" href="creator-manual.ditamap"/> + <topicref navtitle="QML Mouse Events" href="qtquick2-mouseevents.xml"/> + <topicref navtitle="Property Binding" href="qtquick2-propertybinding.xml"/> + </topicref> + <topicref navtitle="QML Module QtQuick.Particles 2" href="qtquick-particles-2.xml"> + <topicref navtitle="Age" href="qml-qtquick-particles2-age.xml"/> + </topicref> + </map> + \endcode + +*/ + +/*! + \page 21-0-qdoc-configuration.html + \previouspage Creating DITA Maps + \contentspage Table of Contents + \nextpage Generic Configuration Variables + + \title The QDoc Configuration File + + Before running QDoc, you must create a QDoc configuration file to + tell QDoc where to find the source files that contain the QDoc + comments. The pathname to your configuration file is passed to + QDoc on the command line: + + \quotation + \c {/current/dir$ ../../bin/qdoc3 ./config.qdocconf} + \endquotation + + \section1 General Description + + The configuration file is a list of entries of the form \e + {"variable = value"}. Using the configuration variables, you can + define where QDoc should find the various source files, images and + examples, where to put generated documentation etc. The + configuration file can also contain directives like \c + include. For an example, see the \l minimum.qdocconf file. + + You can also use configuration variables to get QDoc to support + \l{Supporting Derived Projects} {derived projects}, i.e QDoc can + generate links in your project's documentation to elements in the + Qt online documentation. See the \l {Supporting Derived projects} + section. + + The value of a configuration variable can be set using either '=' + or '+='. The difference is that '=' overrides the previous value, + while '+=' adds a new value to the current one. + + Some configuration variables accept a list of strings as their + value, e.g. + \l {22-qdoc-configuration-generalvariables.html#sourcedirs-variable} + {\c{sourcedirs}}, while others accept only a single string. Double + quotes around a value string are optional, but including them allows + you to use special characters like '=' and ' \" ' within the valuem + string, e.g.: + + \code + HTML.postheader = "<a href=\"index.html\">Home</a>" + \endcode + + If an entry spans many lines, use a backslash at the end of every + line but the last: + + \code + sourcedirs = kernel \ + tools \ + widgets + \endcode + + \section1 Configuration Variables + + \section1 Variable List + + \list + \li \l {22-qdoc-configuration-generalvariables.html#alias-variable} {alias} + \li \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoredirectives-variable} {Cpp.ignoredirectives} + \li \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoretokens-variable} {Cpp.ignoretokens} + \li \l {22-qdoc-configuration-generalvariables.html#basedir-variable} {basedir} \span {class="newStuff"} {(experimental)} + \li \l {22-qdoc-configuration-generalvariables.html#defines-variable} {defines} + \li \l {22-qdoc-configuration-generalvariables.html#edition-variable} {edition} + \li \l {22-qdoc-configuration-generalvariables.html#exampledirs-variable} {exampledirs} + \li \l {22-qdoc-configuration-generalvariables.html#examples-variable} {examples} + \li \l {22-qdoc-configuration-generalvariables.html#examples.fileextensions-variable} {examples.fileextensions} + \li \l {22-qdoc-configuration-generalvariables.html#excludedirs-variable} {excludedirs} + \li \l {22-qdoc-configuration-generalvariables.html#excludefiles-variable} {excludefiles} + \li \l {22-qdoc-configuration-generalvariables.html#extraimages-variable} {extraimages} + \li \l {22-qdoc-configuration-generalvariables.html#falsehoods-variable} {falsehoods} + \li \l {22-qdoc-configuration-generalvariables.html#headerdirs-variable} {headerdirs} + \li \l {22-qdoc-configuration-generalvariables.html#headers-variable} {headers} + \li \l {22-qdoc-configuration-generalvariables.html#headers.fileextensions-variable} {headers.fileextensions} + \li \l {24-qdoc-configuration-htmlvariables.html#HTML.footer-variable} {HTML.footer} + \li \l {24-qdoc-configuration-htmlvariables.html#HTML.postheader-variable} {HTML.postheader} + \li \l {24-qdoc-configuration-htmlvariables.html#HTML.style-variable} {HTML.style} + \li \l {22-qdoc-configuration-generalvariables.html#imagedirs-variable} {imagedirs} + \li \l {22-qdoc-configuration-generalvariables.html#images-variable} {images} + \li \l {22-qdoc-configuration-generalvariables.html#images.fileextensions-variable} {images.fileextensions} + \li \l {22-qdoc-configuration-generalvariables.html#language-variable} {language} + \li \l {22-qdoc-configuration-generalvariables.html#macro-variable} {macro} + \li \l {22-qdoc-configuration-generalvariables.html#outputdir-variable} {outputdir} + \li \l {22-qdoc-configuration-generalvariables.html#outputformats-variable} {outputformats} + \li \l {22-qdoc-configuration-generalvariables.html#sourcedirs-variable} {sourcedirs} + \li \l {22-qdoc-configuration-generalvariables.html#sources-variable} {sources} + \li \l {22-qdoc-configuration-generalvariables.html#sources.fileextensions-variable} {sources.fileextensions} + \li \l {22-qdoc-configuration-generalvariables.html#spurious-variable} {spurious} + \li \l {22-qdoc-configuration-generalvariables.html#tabsize-variable} {tabsize} + \li \l {22-qdoc-configuration-generalvariables.html#version-variable} {version} + \li \l {22-qdoc-configuration-generalvariables.html#versionsym-variable} {versionsym} + \endlist + + \section1 Categories + + \list + \li \l {Generic Configuration Variables} + \li \l {C++ Specific Configuration Variables} + \li \l {HTML Specific Configuration Variables} + \endlist + + \section1 Configuration File Examples + + \list + \li A minimum configuration file: \l minimum.qdocconf + \li The Qt configuration file: \l qt.qdocconf + \endlist +*/ + +/*! + \page 21-1-minimum-qdocconf.html + \previouspage qt.qdocconf + \contentspage Table of Contents + \nextpage Generating DITA XML Output + + \title minimum.qdocconf + + \quotefile examples/minimum.qdocconf +*/ + +/*! + \page 21-2-qt-qdocconf.html + \previouspage Supporting Derived Projects + \contentspage Table of Contents + \nextpage minimum.qdocconf + + \title qt.qdocconf + + \quotefile files/qt.qdocconf +*/ + +/*! + \page 21-3-qt-dita-xml-output.html + \previouspage minimum.qdocconf + \contentspage Table of Contents + \nextpage Table of Contents + + \title Generating DITA XML Output + + QDoc can generate \l {http://dita.xml.org} {DITA XML output}. + + In your confifiguration file, set your \c {outputformats} variable + to \c {DITAXML}, and send the output to an appropriate directory: + + \code + outputdir = $QTDIR/doc/ditaxml + outputformats = DITAXML + \endcode + + And include these macros in your configuration file to prevent + QDoc from doing some escaping that doesn't validate in XML: + + \code + macro.aacute.DITAXML = "á" + macro.Aring.DITAXML = "Å" + macro.aring.DITAXML = "å" + macro.Auml.DITAXML = "Ä" + macro.br.DITAXML = " " + macro.BR.DITAXML = " " + macro.copyright.DITAXML = "©" + macro.eacute.DITAXML = "é" + macro.hr.DITAXML = " " + macro.iacute.DITAXML = "í" + macro.oslash.DITAXML = "ø" + macro.ouml.DITAXML = "ö" + macro.raisedaster.DITAXML = "<sup>*</sup>" + macro.rarrow.DITAXML = "→" + macro.reg.DITAXML = "<sup>®</sup>" + macro.uuml.DITAXML = "ü" + macro.mdash.DITAXML = "—" + macro.emptyspan.DITAXML = " " + \endcode + + You can also set default values for some of the tags in the DITA + \c {<prolog>} and \c {<metadata>} elements: + + \code + dita.metadata.default.author = Qt Development Frameworks + dita.metadata.default.permissions = all + dita.metadata.default.publisher = Nokia + dita.metadata.default.copyryear = 2011 + dita.metadata.default.copyrholder = Nokia + dita.metadata.default.audience = programmer + \endcode + + See the \l {12-0-qdoc-commands-miscellaneous.html#meta-command} + {\\meta} command for more details on DITA metadata. + +*/ + +/*! + \page 22-qdoc-configuration-generalvariables.html + \previouspage The QDoc Configuration File + \contentspage Table of Contents + \nextpage Creating Help Project Files + + \title Generic Configuration Variables + + With the general QDoc configuration variables, you can define + where QDoc will find the various source files it needs to generate + the documentation, as well as the directory to put the generated + documentation. You can also do some minor manipulation of QDoc + itself, controlling its output and processing behavior. + + \target alias-variable + \section1 alias + + The \c alias variable renames a QDoc command. + + The general syntax is \tt {alias.\e{original-command-name} = \e + temporary-command-name}. + + \code + alias.e = i + \endcode + + This renames the built-in command \\e (italics) to be \\i. The \c + alias variable is often used for compatibility reasons. + + See also \l {macro-variable} {macro}. + + \target codeindent-variable + \section1 codeindent + + The \c codeindent variable specifies the level of indentation that + QDoc uses when writing code snippets. + + QDoc originally used a hard-coded value of four spaces for code + indentation to ensure that code snippets could be easily + distinguished from surrounding text. Since we can use \l{HTML + Specific Configuration Variables#HTML.stylesheets} {stylesheets} + to adjust the appearance of certain types of HTML elements, this + level of indentation is not always required. + + \target basedir-variable + \section1 basedir + + The \c basedir variable tells QDoc two things. First, the fact that + it is set it tells QDoc to the put the output files in subdirectories + of the output directory. Second, the value of basedir is the name of + the bundle directory for your project. .e.g. if you are working with + the Qt5 bundle, you will have checked out the bundle into some root + subdirectory (the base directory), and that root directory might + very well be \e {qt5} + + Then in your qdocconf file, you would assign to the basedir variable: + + \code + basedir = qt5 + \endcode + + Now, QDoc knows to scan the file path of each source file it parses, + looking for \e qt5. For example, this file would be: + + \code + ~/depot/qt5/qtdoc/tools/qdoc3/doc/qdoc-manual.qdoc + \endcode + + QDoc scans the path for the basedir \e{qt5} and the next subdirectory + \e{qtdoc} becomes one of the subdirectories in the output directory. + The HTML output file created from this file will be stored in the + \e{qtdoc} subdirectory. + + \note This is an experimental command. It is currently used only by + the Qt documentation group. If you use it, be advised that you might + find some broken links in your HTML output due to remaining problems + with cross-subdirectory linking. + + \target defines-variable + \section1 defines + + The \c defines variable specifies the C++ preprocessor symbols + that QDoc will recognize and respond to. + + When a preprocessor symbol is specified using the \c defines + variable, you can also use the \l {if-command} {\\if} command to + enclose documentation that only will be included if the + preprocessor symbol is defined. + + The values of the variable are regular expressions (see QRegExp + for details). By default, no symbol is defined, meaning that code + protected with #ifdef...#endif will be ignored. + + \code + defines = Q_QDOC \ + QT_.*_SUPPORT \ + QT_.*_LIB \ + QT_COMPAT \ + QT3_SUPPORT \ + Q_WS_.* \ + Q_OS_.* \ + Q_BYTE_ORDER \ + __cplusplus + \endcode + + This ensures that QDoc will process the code that requires these + symbols to be defined. For example: + + \code + #ifdef Q_WS_WIN + HDC getDC() const; + void releaseDC(HDC) const; + #endif + \endcode + + Since the Q_WS_.* regular expression (specified using the \c + defines variable) matches Q_WS_WIN, QDoc will process the code + within #ifdef and #endif in our example. + + You can also define preprocessor symbols manually on the command + line using the -D option. For example: + + \code + currentdirectory$ qdoc3 -Dconsoleedition qt.qdocconf + \endcode + + In this case the -D option ensures that the \c consoleedition + preprocessor symbol is defined when QDoc processes the source + files defined in the qt.qdocconf file. + + See also \l {falsehoods-variable} {falsehoods} and \l {if-command} {\\if}. + + \target edition-variable + \section1 edition + + The \c edition variable specifies which modules are included in + each edition of a package, and provides QDoc with information to + provide class lists for each edition. + + This feature is mostly used when providing documentation for Qt + packages. + + The \c edition variable is always used with a particular edition + name to define the modules for that edition: + + \code + edition.Console = QtCore QtNetwork QtSql QtXml + edition.Desktop = QtCore QtGui QtNetwork QtOpenGL QtSql QtXml \ + QtDesigner QtAssistant Qt3Support QAxContainer \ + QAxServer + edition.DesktopLight = QtCore QtGui Qt3SupportLight + \endcode + + In the above examples, the \c Console edition only includes the + contents of four modules. Only the classes from these modules will + be used when the \l{Miscellaneous#generatelist-command} + {generatelist} command is used to generate a list of classes for + this edition: + + \code + \generatelist{classesbyedition Console} + \endcode + + \target exampledirs-variable + \section1 exampledirs + + The \c exampledirs variable specifies the directories containing + the source code of the example files. + + The \l {examples-variable} {examples} {examples} and \l + {exampledirs-variable} {exampledirs} variables are used by the \l + {quotefromfile-command} {\\quotefromfile}, \l {quotefile-command} + {\\quotefile} and \l {example-command} {\\example} commands. If + both the \l {examples-variable} {examples} and \l + {exampledirs-variable} {exampledirs} variables are defined, QDoc + will search in both, first in \l {examples-variable} {examples} + then in \l {exampledirs-variable} {exampledirs}. + + QDoc will search through the directories in the specified order, + and accept the first matching file it finds. It will only search + in the specified directories, \e not in subdirectories. + + \code + exampledirs = $QTDIR/doc/src \ + $QTDIR/examples \ + $QTDIR \ + $QTDIR/qmake/examples + + examples = $QTDIR/examples/widgets/analogclock/analogclock.cpp + \endcode + + When processing + + \code + \quotefromfile widgets/calculator/calculator.cpp + \endcode + + QDoc will then see if there exists a file called \c calculator.cpp + listed as a value in the \l {examples} {\c examples} variable. If + it doesn't, it will search in the \c exampledirs variable, and + first see if there exists a file called + + \code + $QTDIR/doc/src/widgets/calculator/calculator.cpp + \endcode + + If it doesn't, QDoc will continue looking for a file called + + \code + $QTDIR/examples/widgets/calculator/calculator.cpp + \endcode + + and so forth. + + See also \l examples. + + \target examples-variable + \section1 examples + + The \c examples variable allows you to specify individual example + files in addition to those located in the directories specified by + the \l {exampledirs-variable} {\c exampledirs} variable. + + The \c examples and \l {exampledirs-variable} {\c exampledirs} + variables are used by the \l {quotefromfile-command} + {\\quotefromfile}, \l {quotefile-command} {\\quotefile} and \l + {example} {\\example} commands. If both the \c examples and \l + {exampledirs-variable} {\c exampledirs} variables are defined, + QDoc will search in both, first in \c examples then in \l + {exampledirs-variable} {\c exampledirs}. + + QDoc will search through the values listed for the \c examples + variable, in the specified order, and accept the first one it + finds. + + For an extensive example, see the \l {exampledirs-variable} {\c + exampledirs} command. But note that if you know the file is listed + in the \c examples variable, you don't need to specify its path: + + \code + \quotefromfile calculator.cpp + \endcode + + See also \l {exampledirs-variable} {exampledirs}. + + \target examples.fileextensions-variable + \section1 examples.fileextensions + + The \c examples.fileextensions variable specifies the file + extensions that qdoc will look for when collecting example files + for display in the documentation. + + The default extensions are *.cpp, *.h, *.js, *.xq, *.svg, *.xml + and *.ui. + + The extensions are given as standard wildcard expressions. You + can add a file extension to the filter using '+='. For example: + + \code + examples.fileextensions += *.qrc + \endcode + + See also \l{headers.fileextensions}. + + \target excludedirs-variable + \section1 excludedirs + + The \c excludedirs variable is for listing directories that should \e{not} + be processed by qdoc, even if the same directories are included by the + \l {sourcedirs-variable} {sourcedirs} or \l {headerdirs-variable} {headerdirs} + variables. + + For example in \l qt.qdocconf + + \code + excludedirs = $QTDIR/extensions/activeqt \ + $QTDIR/extensions/motif \ + $QTDIR/tools/designer/src/lib/extension \ + $QTDIR/tools/designer/src/lib/sdk \ + $QTDIR/tools/designer/src/lib/uilib + \endcode + + When executed, QDoc will exclude the listed directories from + further consideration. Files in these directories will not be + read by qdoc. + + See also \l {excludefiles-variable} {excludefiles}. + + \target excludefiles-variable + \section1 excludefiles + + The \c excludefiles variable allows you to specify individual files + that should \e{not} be processed by qdoc. + + \code + excludefiles += $QT_CORE_SOURCES/../../src/widgets/kernel/qwidget.h \ + $QT_CORE_SOURCES/../../src/widgets/kernel/qwidget.cpp + \endcode + + If you include the above in your qdocconf file for qtbase, there + will be no qwidget.html generated for html and no qwidget.xml + generated for DITA XML. + + See also \l {excludedirs-variable} {excludedirs}. + + \target extraimages-variable + \section1 extraimages + + The \c extraimages variable tells QDoc to incorporate specific + images in the generated documentation. + + QDoc will not recognize images used within HTML (or any other + markup language). If we want the images to be copied from the + directories specified by \l {imagedirs} {\c imagedirs} (the images + in question must be located in these directories) to the output + directory, we must specify the images using the \c extraimages + variable. + + The general syntax is \tt {extraimages.\e{format} = \e image}. The + file extension is optional. + + For example, in \l qt.qdocconf we use a couple of images within + the HTML.postheader variable which value is pure HTML. For that + reason, these images are specified using the \c extraimages + variable: + + \code + extraimages.HTML = qt-logo + \endcode + + See also \l images and \l imagedirs. + + \target falsehoods-variable + \section1 falsehoods + + The \c falsehoods variable defines the truth value of specified + preprocessor symbols as false. + + If this variable is not set for a preprocessor symbol, QDoc + assumes its truth value is true. The exception is '0', which value + always is false. + + QDoc will recognize, and is able to evaluate, the following + preprocessor syntax: + + \code + #ifdef NOTYET + ... + #endif + + #if defined (NOTYET) + ... + #end if + \endcode + + However, faced with unknown syntax like + + \code + #if NOTYET + ... + #endif + \endcode + + QDoc will evaluate it as true by default, \e unless the + preprocessor symbol is specified within the \c falsehoods variable + entry: + + \code + falsehoods = NOTYET + \endcode + + See also \l defines. + + \target generateindex-variable + \section1 generateindex + + The \c generateindex variable contains a boolean value that + specifies whether to generate an index file when HTML + documentation is generated. + + By default, an index file is always generated with HTML + documentation, so this variable is typically only used when + disabling this feature (by setting the value to \c false) or when + enabling index generation for the WebXML output (by setting the + value to \c true). + + \target headerdirs-variable + \section1 headerdirs + + The \c headerdirs variable specifies the directories containing + the header files associated with the \c .cpp source files used in + the documentation. + + \code + headerdirs = $QTDIR/src \ + $QTDIR/extensions/activeqt \ + $QTDIR/extensions/motif \ + $QTDIR/tools/designer/src/lib/extension \ + $QTDIR/tools/designer/src/lib/sdk \ + $QTDIR/tools/designer/src/lib/uilib + \endcode + + When executed, the first thing QDoc will do is to read through the + headers specified in the \l {headers} {\c headers} variable, and + the ones located in the directories specified in the \c headerdir + variable (including all subdirectories), building an internal + structure of the classes and their functions. + + Then it will read through the sources specified in the \l + {sources-variable} {\c sources}, and the ones located in the + directories specified in the \l {sourcedirs-variable} {\c + sourcedirs} varible (including all subdirectories), merging the + documentation with the structure it retrieved from the header + files. + + If both the \c headers and \c headerdirs variables are defined, + QDoc will read through both, first \l {headers} {\c headers} then + \c headerdirs. + + In the specified directories, QDoc will only read the files with + the fileextensions specified in the \l {headers.fileextensions} + {\c headers.fileextensions} variable. The default extensions are + *.ch, *.h, *.h++, *.hh, *.hpp and *.hxx". The files specified by + \l {headers} {\c headers} will be read independent of their + fileextensions. + + See also \l headers and \l headers.fileextensions. + + \target headers-variable + \section1 headers + + The \c headers variable allows you to specify individual header + files in addition to those located in the directories specified by + the \l {headerdirs} {\c headerdirs} variable. + + \code + headers = $QTDIR/src/gui/widgets/qlineedit.h \ + $QTDIR/src/gui/widgets/qpushbutton.h + \endcode + + When processing the \c headers variable, QDoc behaves in the same + way as it does when processing the \l {headerdirs} {\c headerdirs} + variable. For more information, see the \l {headerdirs} {\c + headerdirs} variable. + + See also \l headerdirs. + + \target headers.fileextensions-variable + \section1 headers.fileextensions + + The \c headers.fileextensions variable specify the extension used + by the headers. + + When processing the header files specified in the \l {headerdirs} + {\c headerdirs} variable, QDoc will only read the files with the + fileextensions specified in the \c headers.fileextensions + variable. In this way QDoc avoid spending time reading irrelevant + files. + + The default extensions are *.ch, *.h, *.h++, *.hh, *.hpp and + *.hxx. + + The extensions are given as standard wildcard expressions. You + can add a file extension to the filter using '+='. For example: + + \code + header.fileextensions += *.H + \endcode + + \warning The above assignment may not work as described. + + See also \l headerdirs. + + \target imagedirs-variable + \section1 imagedirs + + The \c imagedirs variable specifies the directories containing the + images used in the documentation. + + The \l {images} {\c images} and \c imagedirs variables are used by + the \l {image-command} {\\image} and \l {inlineimage-command} + {\\inlineimage} commands. If both the \l {images} {\c images} and + \c imagedirs variables are defined, QDoc will search in both, + first in \l {images} {\c images} then in \c imagedirs. + + QDoc will search through the directories in the specified order, + and accept the first matching file it finds. It will only search + in the specified directories, \e not in subdirectories. + + \code + imagedirs = $QTDIR/doc/src/images \ + $QTDIR/examples + + images = $QTDIR/doc/src/images/calculator-example.png + \endcode + + When processing + + \code + \image calculator-example.png + \endcode + + QDoc will then see if there exists a file called + calculator-example.png listed as a value in the \c images + variable. If it doesn't, it will search in the \c imagedirs + variable, and first see if there exists a file called + + \code + $QTDIR/doc/src/images/calculator-example.png + \endcode + + If it doesn't, QDoc will look for a file called + + \code + $QTDIR/examples/calculator-example.png + \endcode + + You can filter the images in an image directory using the \l + {images.fileextensions} {\c images.fileextensions} variable. The + general idea behind the \l {images.fileextensions} {\c images.fileextensions} + variable is to enable different image format for different output format. + + \warning The \l {images.fileextensions} {\c images.fileextensions} + variable's functionality is preliminay since QDoc at this point + only support HTML. + + See also \l images and \l images.fileextensions. + + \target images-variable + \section1 images + + The \c images variable allows you to specify individual image + files in addition to those located in the directories specified by + the \l {imagedirs} {\c imagedirs} variable. + + \code + images = $QTDIR/doc/src/images/calculator-example.png + \endcode + + When processing the \c images variable, QDoc behaves in the same + way as it does when processing the \l {imagedirs} {\c imagedirs} + variable. For more information, see the \l {imagedirs} {\c + imagedirs} variable. + + See also \l imagedirs and \l images.fileextensions. + + \target images.fileextensions-variable + \section1 images.fileextensions + + The images.fileextensions variable filters the files within an + image directory. + + The variable's values (the extensions) are given as standard + wildcard expressions. The general syntax is: \tt + {images.fileextensions.\e{format} = *.\e{extension}}. + + The idea is to enable different image format for different output + format. + + \code + images.fileextensions.HTML = *.png + images.fileextensions.LOUT = *.eps + \endcode + + Then, when processing the \l {image-command} {\\image} and \l + {inlineimage-command} {\\inlineimage} commands, QDoc will only + search for files with extensions specified in the output format's + associated image extension variable. + + \warning This is preliminary functionality since QDoc at this + point only support HTML. + + The default extensions for HTML are *.png, *.jpg, *.jpeg and + *.gif. + + You can add a file extension to the filter using '+='. For + example: + + \code + images.fileextensions.HTML += *.eps + \endcode + + See also \l imagedirs and \l images. + + \target language-variable + \section1 language + + The \c language variable specifies the language of the source code + that is used in the documentation. + + Currently, C++ is the only language that QDoc understands. It is + also the default language, and doesn't really need to be + specified. But for example in \l qt.qdocconf: + + \code + language = Cpp + \endcode + + identifies the language of the Qt source code as C++. + + \target macro-variable + \section1 macro + + The \c macro variable is used to create your own simple QDoc + commands. The syntax is \tt {macro.\e{command} = \e{definition}}, + where the definition is written using QDoc syntax. + + A macro variable can be restricted for use in one type of output + generation. By appending \c {.HTML} to the macro name, for + example, the macro is only used when generating HTML output. By + appending \c {.DITAXML} to the macro name, the macro is only used + when generating DITA XML. + + \code + macro.gui = "\\b" + macro.raisedaster.HTML = "<sup>*</sup>" + \endcode + + The first macro defines the \\gui command to render its argument + using a bold font. The second macro defines the \\raisedaster + command to render a superscript asterisk, but only when generating + HTML. + + See also \l {alias-variable} {alias}. + + \target naturallanguage-variable + \section1 naturallanguage + + The \c naturallanguage variable specifies the natural language + used for the documentation generated by qdoc. + + \code + naturallanguage = zh-Hans + \endcode + + By default, the natural language is \c en for compatibility with + legacy documentation. + + qdoc will add the natural language information to the HTML it + generates, using the \c lang and \c xml:lang attributes. + + See also \l {sourceencoding-variable} {sourceencoding}, + \l {outputencoding-variable} {outputencoding}, + \l{http://www.w3.org/TR/xhtml1/#C_7} + {C.7. The lang and xml:lang Attributes} and + \l{http://www.w3.org/TR/i18n-html-tech-lang/#ri20040429.113217290} + {Best Practice 13: Using Hans and Hant codes}. + + \target outputdir-variable + \section1 outputdir + + The \c outputdir variable specifies the directory where QDoc will + put the generated documentation. + + In qt.qdocconf: + + \code + outputdir = $QTDIR/doc/html + \endcode + + locates the generated Qt reference documentation in + $QTDIR/doc/html. For example, the documentation of the QWidget + class is located in + + \code + $QTDIR/doc/html/qwidget.html + \endcode + + The associated images will be put in an \c images subdirectory. + + \warning When running QDoc multiple times using the same output + directory, all files from the previous run will be lost. + + \target outputencoding-variable + \section1 outputencoding + + The \c outputencoding variable specifies the encoding used for the + documentation generated by qdoc. + + \code + outputencoding = UTF-8 + \endcode + + By default, the output encoding is \c ISO-8859-1 (Latin1) for + compatibility with legacy documentation. When generating + documentation for some languages, particularly non-European + languages, this is not sufficient and an encoding such as UTF-8 is + required. + + qdoc will encode HTML using this encoding and generate the correct + declarations to indicate to browsers which encoding is being + used. The \l naturallanguage configuration variable should also be + specified to provide browsers with a complete set of character + encoding and language information. + + See also \l outputencoding and \l naturallanguage. + + \target outputformats-variable + \section1 outputformats + + The \c outputformats variable specifies the format of + the generated documentation. + + Currently, QDoc only supports the HTML format. It is also + the default format, and doesn't need to be specified. + + \target outputprefixes + \section1 outputprefixes + + The \c outputprefixes variable specifies a mapping between types of files + and the prefixes to prepend to the HTML file names in the generated + documentation. + + \code + outputprefixes = QML + outputprefixes.QML = qt-components- + \endcode + + By default, files containing the API documentation for QML elements + or components are prefixed with "qml-". In the above example, the + prefix "qt-components-" is used instead. + + \target qhp-variable + \section1 qhp + + The \c qhp variable is used to define the information to be + written out to Qt Help Project (\c{qhp}) files. + + See the \l{Creating Help Project Files} chapter for information + about this process. + + \target sourcedirs-variable + \section1 sourcedirs + + The \c sourcedirs variable specifies the directories containing + the \c .cpp or \c .qdoc files used in the documentation. + + For example in \l qt.qdocconf + + \code + sourcedirs = $QTDIR/src \ + $QTDIR/doc/src \ + $QTDIR/extensions/activeqt \ + $QTDIR/extensions/motif \ + $QTDIR/tools/designer/src/lib/extension \ + $QTDIR/tools/designer/src/lib/sdk \ + $QTDIR/tools/designer/src/lib/uilib + \endcode + + When executed, the first thing QDoc will do is to read through the + headers specified in the \l {header-command} {\c header} variable, + and the ones located in the directories specified in the \c + headerdir variable (including all subdirectories), building an + internal structure of the classes and their functions. + + Then it will read through the sources specified in the \l + {sources} {\c sources}, and the ones located in the directories + specified in the \l {sourcedirs} {\c sourcedirs} varible + (including all subdirectories), merging the documentation with the + structure it retrieved from the header files. + + If both the \c sources and \c sourcedirs variables are defined, + QDoc will read through both, first \l {sources} {\c sources} then + \c sourcedirs. + + In the specified directories, QDoc will only read the files with + the fileextensions specified in the \l {sources.fileextensions} + {\c sources.fileextensions} variable. The default extensions are + *.c++, *.cc, *.cpp and *.cxx. The files specified by \l {sources} + {\c sources} will be read independent of their fileextensions. + + See also \l {sources-variable} {sources} and + \l {sources.fileextensions-variable} {sources.fileextensions}. + + \target sourceencoding-variable + \section1 sourceencoding + + The \c sourceencoding variable specifies the encoding used for the + source code and documentation. + + \code + sourceencoding = UTF-8 + \endcode + + By default, the source encoding is \c ISO-8859-1 (Latin1) for + compatibility with legacy documentation. For some languages, + particularly non-European languages, this is not sufficient and an + encoding such as UTF-8 is required. + + Although qdoc will use the encoding to read source and + documentation files, limitations of C++ compilers may prevent you + from using non-ASCII characters in source code comments. In cases + like these, it is possible to write API documentation completely + in documentation files. + + See also \l {naturallanguage-variable} {naturallanguage} and + \l {outputencoding-variable} {outputencoding}. + + \target sources-variable + \section1 sources + + The \c sources variable allows you to specify individual source + files in addition to those located in the directories specified by + the \l {sourcedirs-variable} {sourcedirs} variable. + + \code + sources = $QTDIR/src/gui/widgets/qlineedit.cpp \ + $QTDIR/src/gui/widgets/qpushbutton.cpp + \endcode + + When processing the \c sources variable, QDoc behaves in the same + way as it does when processing the \l {sourcedirs-variable} + {sourcedirs} variable. For more information, see the \l + {sourcedirs-variable} {sourcedirs} variable. + + See also \l {sourcedirs-variable} {sourcedirs}. + + \target sources.fileextensions-variable + \section1 sources.fileextensions + + The \c sources.fileextensions variable filters the files within a + source directory. + + When processing the source files specified in the \l {sourcedirs} + {\c sourcedirs} variable, QDoc will only read the files with the + fileextensions specified in the \c sources.fileextensions + variable. In this way QDoc avoid spending time reading irrelevant + files. + + The default extensions are *.c++, *.cc, *.cpp and *.cxx. + + The extensions are given as standard wildcard expressions. You + can add a file extension to the filter using '+='. For example: + + \code + sources.fileextensions += *.CC + \endcode + + \warning The above assignment may not work as described. + + See also \l {sourcedirs-variable} {sourcedirs} and \l + (sources-variable} {sources}. + + + \target spurious-variable + \section1 spurious + + The \c spurious variable excludes specified QDoc warnings from the + output. The warnings are specified using standard wildcard + expressions. + + \code + spurious = "Cannot find .*" \ + "Missing .*" + \endcode + + makes sure that warnings matching either of these expressions, + will not be part of the output when running QDoc. For example + would the following warning be omitted from the output: + + \code + qt-4.0/src/opengl/qgl_mac.cpp:156: Missing parameter name + \endcode + + \target syntaxhighlighting + \section1 syntaxhighlighting + + The \c syntaxhighlighting variable specifies whether QDoc should + perform syntax highlighting on source code quoted in the + documentation it generates. + + \code + syntaxhighlighting = true + \endcode + + will enable syntax highlighting for all supported programming + languages. + + \target tabsize-variable + \section1 tabsize + + The \c tabsize variable defines the size of a tab character. + + \code + tabsize = 4 + \endcode + + will give the tab character the size of 4 spaces. The default + value of the variable is 8, and doesn't need to be specified. + + \target tagfile-variable + \section1 tagfile + + The \c tagfile variable specifies the Doxygen tag file to be + written when HTML is generated. + + \target version-variable + \section1 version + + The \c version variable specifies the version number of the + documented software. + + \code + version = 4.0.1 + \endcode + + When a version number is specified (using the \tt{\l version} or + \tt {\l versionsym} variables in a \c .qdocconf file), it is + accessible through the corresponding \\version command for use in + the documentation. + + \warning The \\version command's functionality is not fully + implemented; currently it only works within raw HTML code. + + See also \l versionsym. + + \target versionsym-variable + \section1 versionsym + + The \c versionsym variable specifies a C++ preprocessor symbol + that defines the version number of the documented software. + + For example in \l qt.qdocconf: + + \code + versionsym = QT_VERSION_STR + \endcode + + QT_VERSION_STR is defined in qglobal.h as follows + + \code + #define QT_VERSION_STR "4.0.1" + \endcode + + When a version number is specified (using the \tt{\l version} or + \tt {\l versionsym} variables in a \c .qdocconf file), it is + accessible through the corresponding \\version command for use in + the documentation. + + \warning The \\version command's functionality is not fully + implemented; currently it only works within raw HTML code. + + See also \l {version} {\\version}. +*/ + +/*! + \page 22-creating-help-project-files.html + \previouspage Generic Configuration Variables + \contentspage Table of Contents + \nextpage C++ Specific Configuration Variables + + \title Creating Help Project Files + + \section1 Overview + + Starting with Qt 4.4, Qt Assistant uses a different system for managing + Qt documentation that requires QDoc to generate inventories of files in a + format that is similar to the old style DCF format, but with additional + features. + + Instead of hard-coding information about the documentation sets for Qt, + QDoc allows configuration variables to be used to specify which pages are + to be used in each documentation set it generates. These are specified as + subvariables of the \c qch variable with each set declared using a unique + identifier as a subvariable. + + For example, the configuration file for the Qt documentation defines a + \c Qt documentation set by specifying information about the set as + subvariables with the \c{qhp.Qt} prefix: + + \code + qhp.Qt.file = qt.qhp + qhp.Qt.namespace = com.trolltech.qt.440 + qhp.Qt.virtualFolder = qdoc + qhp.Qt.indexTitle = Qt Reference Documentation + qhp.Qt.indexRoot = + qhp.Qt.extraFiles = classic.css images/qt-logo.png + qhp.Qt.filterAttributes = qt 4.4.0 qtrefdoc + qhp.Qt.customFilters.Qt.name = Qt 4.4.0 + qhp.Qt.customFilters.Qt.filterAttributes = qt 4.4.0 + qhp.Qt.subprojects = classes overviews examples + qhp.Qt.subprojects.classes.title = Classes + qhp.Qt.subprojects.classes.indexTitle = Qt's Classes + qhp.Qt.subprojects.classes.selectors = class + qhp.Qt.subprojects.overviews.title = Overviews + qhp.Qt.subprojects.overviews.indexTitle = All Overviews and HOWTOs + qhp.Qt.subprojects.overviews.selectors = fake:page,group,module + qhp.Qt.subprojects.examples.title = Tutorials and Examples + qhp.Qt.subprojects.examples.indexTitle = Qt Examples + qhp.Qt.subprojects.examples.selectors = fake:example + \endcode + + To create a table of contents for a manual, create a subproject with + a \c{type} property and set it to \c{manual}. The page in the documentation + referred to by the \c{indexTitle} property must contain a list of links + that acts as a table of contents for the whole manual. QDoc will take the + information in this list and create a table of contents for the subproject. + + For example, the configuration file for Qt Creator defines only one + subproject for its documentation, including all the documentation in a + single manual: + + \code + qhp.QtCreator.subprojects = manual + qhp.QtCreator.subprojects.manual.title = Qt Creator Manual + qhp.QtCreator.subprojects.manual.indexTitle = Qt Creator Manual + qhp.QtCreator.subprojects.manual.type = manual + \endcode + + In this example, the page entitled "Qt Creator Manual" contains a nested + list of links to pages in the documentation which is duplicated in + Qt Assistant's Contents tab. +*/ + +/*! + \page 23-qdoc-configuration-cppvariables.html + \previouspage Creating Help Project Files + \contentspage Table of Contents + \nextpage HTML Specific Configuration Variables + + \title C++ Specific Configuration Variables + + The C++ specific configuration variables are provided to avoid + erroneous documentation due to non-standard C++ constructs. + + \target Cpp.ignoredirectives-variable + \section1 Cpp.ignoredirectives + + The \c Cpp.ignoredirectives variable makes QDoc ignore the + specified non-standard constructs, within C++ source code. + + If not specified by the \tt {\l Cpp.ignoretokens} or \tt {\l + Cpp.ignoredirectives} variables, non-standard constructs + (typically macros) can result in erroneous documentation. + + In \l qt.qdocconf: + + \code + Cpp.ignoredirectives = Q_DECLARE_INTERFACE \ + Q_DECLARE_OPERATORS_FOR_FLAGS \ + Q_DECLARE_PRIVATE \ + Q_DECLARE_PUBLIC \ + Q_DISABLE_COPY \ + Q_DUMMY_COMPARISON_OPERATOR \ + Q_ENUMS \ + Q_FLAGS \ + Q_INTERFACES \ + __attribute__ + \endcode + + makes sure that when processing the code below, for example, QDoc + will simply ignore the 'Q_ENUMS' and 'Q_FLAGS' expressions: + + \code + class Q_CORE_EXPORT Qt { + Q_OBJECT + Q_ENUMS(Orientation TextFormat BackgroundMode + DateFormat ScrollBarPolicy FocusPolicy + ContextMenuPolicy CaseSensitivity + LayoutDirection ArrowType) + Q_ENUMS(ToolButtonStyle) + Q_FLAGS(Alignment) + Q_FLAGS(Orientations) + Q_FLAGS(DockWidgetAreas) + + public: + ... + }; + \endcode + + The Q_OBJECT macro, however, is an exception: QDoc recognizes this + particular non-standard construct, so there is no need specifying + it using the \tt {\l Cpp.ignoredirectives} variable. + + Regarding the Q_CORE_EXPORT macro; see the documentation of the + \tt {\l Cpp.ignoretokens} variable. + + See also \l Cpp.ignoretokens. + + \target Cpp.ignoretokens-variable + \section1 Cpp.ignoretokens + + The \c Cpp.ignoretokens variable makes QDoc ignore the specified + non-standard constructs, within C++ source code. + + If not specified by the \tt {\l Cpp.ignoretokens} or \tt {\l + Cpp.ignoredirectives} variables, non-standard constructs + (typically macros) can result in erroneous documentation. + + In \l qt.qdocconf: + + \code + Cpp.ignoretokens = QAXFACTORY_EXPORT \ + QM_EXPORT_CANVAS \ + ... + Q_COMPAT_EXPORT \ + Q_CORE_EXPORT \ + Q_EXPLICIT \ + Q_EXPORT \ + ... + Q_XML_EXPORT + \endcode + + makes sure that when processing the code below, for example, QDoc + will simply ignore the 'Q_CORE_EXPORT' expression: + + \code + class Q_CORE_EXPORT Qt { + Q_OBJECT + Q_ENUMS(Orientation TextFormat BackgroundMode + DateFormat ScrollBarPolicy FocusPolicy + ContextMenuPolicy CaseSensitivity + LayoutDirection ArrowType) + Q_ENUMS(ToolButtonStyle) + Q_FLAGS(Alignment) + Q_FLAGS(Orientations) + Q_FLAGS(DockWidgetAreas) + public: + ... + }; + \endcode + + Regarding the Q_OBJECT, Q_ENUMS and Q_FLAGS macros; see the + documentation of the \tt {\l Cpp.ignoredirectives} variable. + + See also \l Cpp.ignoredirectives. +*/ + +/*! + \page 24-qdoc-configuration-htmlvariables.html + \previouspage C++ Specific Configuration Variables + \contentspage Table of Contents + \nextpage Supporting Derived Projects + + \title HTML Specific Configuration Variables + + The HTML specific configuration variables define the generated + documentation's style, or define the contents of the + documentation's footer or postheader. The format of the variable + values are raw HTML. + + \target HTML.footer-variable + \section1 HTML.footer + + The \c HTML.footer variable defines the content of the generated + HTML documentation's footer. + + The footer is rendered at the bottom of the generated + documentation page. + + The variable's value is given as raw HTML code enclosed by + quotation marks. Note that if the value spans several lines, each + line needs to be enclosed by quotation marks. + + For example in \l qt.qdocconf: + + \code + HTML.footer = "<p /><address><hr /><div align=\"center\">\n" \ + ... + "</tr></table></div></address>" + \endcode + + The complete variable entry in \l qt.qdocconf provides the + standard footer of the \l {http://qt.nokia.com/doc/4.0/index.html} + {Qt Reference Documentation}. + + \target HTML.postheader-variable + \section1 HTML.postheader + + The \c HTML.postheader variable defines the content of the + generated HTML documentation's postheader. + + The header is rendered at the top of the generated documentation + page. + + The variable's value is given as raw HTML enclosed by quotation + marks. Note that if the value spans several lines, each line needs + to be enclosed by quotation marks. + + For example in \l qt.qdocconf: + + \code + HTML.postheader = "<table border=\"0\"..." \ + ... + "<img src=\"images/qt-logo.png\" \ + "align=\"right\" width=\"203\" height=\"32\""\ + "border=\"0\" />" \ + "</td></tr>" \ + "</table>" + \endcode + + The complete variable entry in \l qt.qdocconf provides the + standard header of the \l {http://doc.qt.nokia.com/} + {Qt Reference Documentation}. + + \target HTML.style-variable + \section1 HTML.style + + The HTML.style variable defines the style for + the generated HTML documentation. + + The variable's value is given as raw HTML enclosed by quotation + marks. Note that if the value spans several lines, each line needs + to be enclosed by quotation marks. + + For example in \l qt.qdocconf: + + \code + HTML.style = "h3.fn,span.fn" \ + "{ margin-left: 1cm; text-indent: -1cm; }\n" \ + "a:link { color: #004faf; text-decoration: none }\n" \ + "a:visited" \ + "{ color: #672967; text-decoration: none }\n" \ + "td.postheader { font-family: sans-serif }\n" \ + "tr.address { font-family: sans-serif }\n" \ + "body { background: #ffffff; color: black; }" + \endcode + + provides the HTML style for the \l + {http://qt.nokia.com/doc/4.0/index.html} {Qt Reference + Documentation}. + + \target HTML.stylesheets-variable + \section1 HTML.stylesheets + + The HTML.stylesheets variable defines a list of stylesheets + to use for the generated HTML documentation. + + Using separate stylesheets for the documentation makes it easier + to customize and experiment with the style used once the contents + has been generated. Typically, it is only necessary to define a + single stylesheet for any set of documentation; for example: + + \code + HTML.stylesheets = classic.css + \endcode + + QDoc expects to find stylesheets in the directory containing the + \l qt.qdocconf file, and it will copy those specified to the output + directory alongside the HTML pages. + +*/ + +/*! + \page 25-qdoc-configuration-derivedprojects.html + \previouspage HTML Specific Configuration Variables + \contentspage Table of Contents + + \title Supporting Derived Projects + + Some configuration variables allow you to use QDoc to support + Qt-based projects; i.e allow your project to contain links to the + online Qt documentation. This means that QDoc will be able to + create links to the class reference documentation, without any + explicit linking command. + + \target description-variable + \section1 description + + The description variable holds a short description of the + associated project. + + See also \l project. + + \target indexes-variable + \section1 indexes + + The \c indexes variable lists the index files that will be used to + generate references. + + For example. to make a derived Qt project contain links to the Qt + Reference documentation, you need to specify the associated index + file: + + \code + indexes = $QTDIR/doc/html/qt.index + \endcode + + See also \l project and \l url. + + \target project-variable + \section1 project + + The \c project variable provides a name for the project associated + with the \c .qdocconf file. + + The project's name is used to form a file name for the associated + project's \e index file. + + \code + project = QtCreator + \endcode + + This will cause an index file called \c qtcreator.index to be + created. + + See also \l description and \l indexes. + + \target url-variable + \section1 url + + The \c url variable holds the base URL for the reference + documentation associated with the current project. + + The URL is stored in the generated index file for the + project. When we use the index on its own, QDoc will use this as + the base URL when constructing links to classes, functions, and + other things listed in the index. + + \code + project = Qt + description = Qt Reference Documentation + url = http://doc.qt.nokia.com/4.7 + + ... + \endcode + + This makes sure that whenever \c qt.index is used to generate + references to for example Qt classes, the base URL is \c + http://doc.qt.nokia.com/4.7. + + See also \l indexes. + + \target howto + \section1 How to Support Derived Projects + + This feature makes use of the comprehensive indexes generated by + QDoc when it creates the Qt reference documentation. + + For example, \l qt.qdocconf (the configuration file for Qt) + contains the following variable definitions: + + \code + project = Qt + description = Qt Reference Documentation + url = http://doc.qt.nokia.com/4.7 + + ... + \endcode + + The \l project variable name is used to form a file name for the + index file; in this case the \c qt.index file is created. The \l + url is stored in the index file. Later, when we use the index on + its own, QDoc will use this as the base URL when constructing + links to classes, functions, and other things listed in the index. + + In a mini-project, you can use an index file by defining an \l + indexes configuration variable in your \c .qdocconf file. + + For example, you can create a \c qtcreator.qdocconf file to help you + check the Qt Creator documentation: + + \code + project = QtCreator + description = Qt Creator Class Documentation + url = http://doc.qt.nokia.com/qtcreator-2.2 + + indexes = $QTDIR/doc/html/qt.index + + outputdir = html + + headerdirs = src + sourcedirs = src \ + examples + sources.fileextensions = "*.cpp *.qdoc *.doc" + + exampledirs = examples + \endcode + + The code above requires that you run QDoc from the directory that + contains this file. + + \b {To resolve the actual links to Qt classes, the + mini-project's \c .qdocconf file needs to assign a value to the \l + indexes variable; \c $QTDIR/doc/html/qt.index makes sure that you + always use the updated index file for the Qt documentation.} + + The only disadvantages with this approach are the extra file that + QDoc has to generate and the time it takes to do so. Reading the + index back again later isn't instantaneous either, but it's + quicker than processing all the Qt classes each time you need to + write a new document. +*/ + +/*! + \page 27-qdoc-commmands-alphabetical.html + \previouspage Introduction to QDoc + \contentspage Table of Contents + \nextpage Topic Commands + + \title Command Index + + This is a complete, alphabetized list of the QDoc commands. + + \list + + \li \l {04-qdoc-commands-textmarkup.html#a-command} {\\a} + \li \l {11-qdoc-commands-specialcontent.html#abstract-command} {\\abstract} + \li \l {12-0-qdoc-commands-miscellaneous.html#annotatedlist-command} {\\annotatedlist} + \li \l {04-qdoc-commands-textmarkup.html#b-command} {\\b} \span {class="newStuff"} {(new 5/3/2012)} + \li \l { 22-qdoc-configuration-generalvariables.html#basedir-variable} {basedir} \span {class="newStuff"} {(experimental)} + \li \l {06-qdoc-commands-includecodeinline.html#badcode-command} {\\badcode} + \li \l {04-qdoc-commands-textmarkup.html#b-command} {\\bold} \span {class="newStuff"} {(deprecated, use \\b)} + \li \l {11-qdoc-commands-specialcontent.html#brief-command} {\\brief} + \li \l {04-qdoc-commands-textmarkup.html#c-command} {\\c} + \li \l {09-qdoc-commands-includingimages.html#caption-command} {\\caption} + \li \l {05-qdoc-commands-documentstructure.html#chapter-command} {\\chapter} + \li \l {13-qdoc-commands-topics.html#class-command} {\\class} + \li \l {06-qdoc-commands-includecodeinline.html#code-command} {\\code} + \li \l {07-0-qdoc-commands-includingexternalcode.html#codeline-command} {\\codeline}, + \li \l {16-qdoc-commands-status.html#compat-command} {\\compat} + \li \l {15-qdoc-commands-navigation.html#contentspage-command} {\\contentspage} + \li \l {16-qdoc-commands-status.html#default-command} {\\default} + \li \l {21-0-qdoc-creating-dita-maps.html#ditamap-command} {\\ditamap} \span {class="newStuff"} {(new 05/03/12)} + \li \l {04-qdoc-commands-textmarkup.html#div-command} {\\div} + \li \l {07-0-qdoc-commands-includingexternalcode.html#dots-command} {\\dots} + \li \l {04-qdoc-commands-textmarkup.html#e-command} {\\e} \span {class="newStuff"} {(new 5/3/2012)} + \li \l {12-0-qdoc-commands-miscellaneous.html#else-command} {\\else} + \li \l {12-0-qdoc-commands-miscellaneous.html#endif-command} {\\endif} + \li \l {13-qdoc-commands-topics.html#enum-command} {\\enum} + \li \l {13-qdoc-commands-topics.html#example-command} {\\example} + \li \l {12-0-qdoc-commands-miscellaneous.html#expire-command} {\\expire} + \li \l {13-qdoc-commands-topics.html#externalpage-command} {\\externalpage} + \li \l {13-qdoc-commands-topics.html#fn-command} {\\fn} + \li \l {11-qdoc-commands-specialcontent.html#footnote-command} {\\footnote} + \li \l {12-0-qdoc-commands-miscellaneous.html#generatelist-command} {\\generatelist} + \li \l {13-qdoc-commands-topics.html#group-command} {\\group} + \li \l {10-qdoc-commands-tablesandlists.html#header-command} {\\header} + \li \l {13-qdoc-commands-topics.html#headerfile-command} {\\headerfile} + \li \l {04-qdoc-commands-textmarkup.html#e-command} {\\i} \span {class="newStuff"} {(deprecated, use \\e)} + \li \l {12-0-qdoc-commands-miscellaneous.html#if-command} {\\if} + \li \l {09-qdoc-commands-includingimages.html#image-command} {\\image} + \li \l {12-0-qdoc-commands-miscellaneous.html#include-command} {\\include} + \li \l {15-qdoc-commands-navigation.html#indexpage-command} {\\indexpage} + \li \l {19-qdoc-commands-grouping.html#ingroup-command} {\\ingroup} + \li \l {18-qdoc-commands-relating.html#inherits-command}{\\inherits} + \li \l {19-qdoc-commands-grouping.html#inmodule-command} {\\inmodule} + \li \l {09-qdoc-commands-includingimages.html#inlineimage-command} {\\inlineimage} + \li \l {16-qdoc-commands-status.html#internal-command} {\\internal} + \li \l {08-qdoc-commands-creatinglinks.html#keyword-command} {\\keyword} + \li \l {08-qdoc-commands-creatinglinks.html#l-command} {\\l} + \li \l {11-qdoc-commands-specialcontent.html#legalese-command} {\\legalese} + \li \l {10-qdoc-commands-tablesandlists.html#li-command} {\\li} \span {class="newStuff"} {(new 5/3/2012)} + \li \l {10-qdoc-commands-tablesandlists.html#list-command} {\\list} + \li \l {13-qdoc-commands-topics.html#macro-command} {\\macro} + \li \l {19-qdoc-commands-grouping.html#mainclass-command} {\\mainclass} + \li \l {21-0-qdoc-creating-dita-maps.html#mapref-command} {\\mapref} \span {class="newStuff"} {(new 05/03/12)} + \li \l {12-0-qdoc-commands-miscellaneous.html#meta-command} {\\meta} + \li \l {13-qdoc-commands-topics.html#module-command} {\\module} + \li \l {13-qdoc-commands-topics.html#namespace-command} {\\namespace} + \li \l {15-qdoc-commands-navigation.html#nextpage-command} {\\nextpage} + \li \l {06-qdoc-commands-includecodeinline.html#newcode-command} {\\newcode} + \li \l {17-qdoc-commands-thread.html#nonreentrant-command} {\\nonreentrant} + \li \l {10-qdoc-commands-tablesandlists.html#li-command} {\\o} \span {class="newStuff"} {(deprecated, use \\li)} + + \li \l {16-qdoc-commands-status.html#obsolete-command} {\\obsolete} + \li \l {06-qdoc-commands-includecodeinline.html#oldcode-command} {\\oldcode} + \li \l {12-0-qdoc-commands-miscellaneous.html#omit-command} {\\omit} + \li \l {10-qdoc-commands-tablesandlists.html#omitvalue-command} {\\omitvalue} + \li \l {18-qdoc-commands-relating.html#overload-command} {\\overload} + \li \l {13-qdoc-commands-topics.html#page-command} {\\page} + \li \l {05-qdoc-commands-documentstructure.html#part-command} {\\part} + \li \l {16-qdoc-commands-status.html#preliminary-command} {\\preliminary} + \li \l {15-qdoc-commands-navigation.html#previouspage-command} {\\previouspage} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printline-command} {\\printline} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printto-command} {\\printto} + \li \l {07-0-qdoc-commands-includingexternalcode.html#printuntil-command} {\\printuntil} + \li \l {13-qdoc-commands-topics.html#property-command} {\\property} + \li \l {13-qdoc-commands-topics.html#qmlattachedproperty-command} {\\qmlattachedproperty} + \li \l {13-qdoc-commands-topics.html#qmlattachedsignal-command} {\\qmlattachedsignal} + \li \l {13-qdoc-commands-topics.html#qmlbasictype-command} {\\qmlbasictype} + \li \l {13-qdoc-commands-topics.html#qmlclass-command} {\\qmlclass} + \li \l {13-qdoc-commands-topics.html#qmlmethod-command} {\\qmlmethod} + \li \l {13-qdoc-commands-topics.html#qmlproperty-command} {\\qmlproperty} + \li \l {13-qdoc-commands-topics.html#qmlsignal-command} {\\qmlsignal} + \li \l {13-qdoc-commands-topics.html#qmlmodule-command} {\\qmlmodule} + \li \l {13-qdoc-commands-topics.html#inqmlmodule-command} {\\inqmlmodule} + \li \l {11-qdoc-commands-specialcontent.html#quotation-command} {\\quotation} + \li \l {07-0-qdoc-commands-includingexternalcode.html#quotefile-command} {\\quotefile} + \li \l {07-0-qdoc-commands-includingexternalcode.html#quotefromfile-command} {\\quotefromfile} + \li \l {12-0-qdoc-commands-miscellaneous.html#raw-command} {\\raw} \span {class="newStuff"} {(avoid)} + \li \l {17-qdoc-commands-thread.html#reentrant-command} {\\reentrant} + \li \l {18-qdoc-commands-relating.html#reimp-command} {\\reimp} + \li \l {18-qdoc-commands-relating.html#relates-command} {\\relates} + \li \l {10-qdoc-commands-tablesandlists.html#row-command} {\\row} + \li \l {08-qdoc-commands-creatinglinks.html#sa-command} {\\sa} + \li \l {05-qdoc-commands-documentstructure.html#sectionOne-command} {\\section1} + \li \l {05-qdoc-commands-documentstructure.html#sectionTwo-command} {\\section2} + \li \l {05-qdoc-commands-documentstructure.html#sectionThree-command} {\\section3} + \li \l {05-qdoc-commands-documentstructure.html#sectionFour-command} {\\section4} + \li \l {13-qdoc-commands-topics.html#service-command} {\\service} + \li \l {16-qdoc-commands-status.html#since-command} {\\since} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipline-command} {\\skipline} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipto-command} {\\skipto} + \li \l {07-0-qdoc-commands-includingexternalcode.html#skipuntil-command} {\\skipuntil} + \li \l {07-0-qdoc-commands-includingexternalcode.html#snippet-command} {\\snippet}, + \li \l {04-qdoc-commands-textmarkup.html#span-command} {\\span} + \li \l {15-qdoc-commands-navigation.html#startpage-command} {\\startpage} + \li \l {04-qdoc-commands-textmarkup.html#sub-command} {\\sub} + \li \l {20-qdoc-commands-namingthings.html#subtitle-command} {\\subtitle} + \li \l {04-qdoc-commands-textmarkup.html#sup-command} {\\sup} + \li \l {10-qdoc-commands-tablesandlists.html#table-command} {\\table} + \li \l {11-qdoc-commands-specialcontent.html#tableofcontents-command} {\\tableofcontents} + \li \l {08-qdoc-commands-creatinglinks.html#target-command} {\\target} + \li \l {17-qdoc-commands-thread.html#threadsafe-command} {\\threadsafe} + \li \l {20-qdoc-commands-namingthings.html#title-command} {\\title} + \li \l {21-0-qdoc-creating-dita-maps.html#topicref-command} {\\topicref} \span {class="newStuff"} {(new 05/03/12)} + \li \l {04-qdoc-commands-textmarkup.html#tt-command} {\\tt} + \li \l {13-qdoc-commands-topics.html#typedef-command} {\\typedef} + \li \l {04-qdoc-commands-textmarkup.html#underline-command} {\\underline} + \li \l {13-qdoc-commands-topics.html#variable-command} {\\variable} + \li \l {10-qdoc-commands-tablesandlists.html#value-command} {\\value} + \li \l {11-qdoc-commands-specialcontent.html#warning-command} {\\warning} + \endlist +*/ + +/*! + \externalpage http://qt.nokia.com/about + \title About Qt +*/ |