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diff --git a/src/widgets/styles/qstyle.cpp b/src/widgets/styles/qstyle.cpp new file mode 100644 index 0000000000..c6e4b488c1 --- /dev/null +++ b/src/widgets/styles/qstyle.cpp @@ -0,0 +1,2459 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** 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. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qstyle.h" +#include "qapplication.h" +#include "qpainter.h" +#include "qwidget.h" +#include "qbitmap.h" +#include "qpixmapcache.h" +#include "qstyleoption.h" +#include "private/qstyle_p.h" +#include "private/qguiapplication_p.h" +#ifndef QT_NO_DEBUG +#include "qdebug.h" +#endif + +#ifdef Q_WS_X11 +#include <qx11info_x11.h> +#endif + +#include <limits.h> + +QT_BEGIN_NAMESPACE + +static const int MaxBits = 8 * sizeof(QSizePolicy::ControlType); + +static int unpackControlTypes(QSizePolicy::ControlTypes controls, QSizePolicy::ControlType *array) +{ + if (!controls) + return 0; + + // optimization: exactly one bit is set + if ((controls & (controls - 1)) == 0) { + array[0] = QSizePolicy::ControlType(uint(controls)); + return 1; + } + + int count = 0; + for (int i = 0; i < MaxBits; ++i) { + if (uint bit = (controls & (0x1 << i))) + array[count++] = QSizePolicy::ControlType(bit); + } + return count; +} + +/*! + \class QStyle + \brief The QStyle class is an abstract base class that encapsulates the look and feel of a GUI. + + \ingroup appearance + + Qt contains a set of QStyle subclasses that emulate the styles of + the different platforms supported by Qt (QWindowsStyle, + QMacStyle, QMotifStyle, etc.). By default, these styles are built + into the QtGui library. Styles can also be made available as + plugins. + + Qt's built-in widgets use QStyle to perform nearly all of their + drawing, ensuring that they look exactly like the equivalent + native widgets. The diagram below shows a QComboBox in eight + different styles. + + \img qstyle-comboboxes.png Eight combo boxes + + Topics: + + \tableofcontents + + \section1 Setting a Style + + The style of the entire application can be set using the + QApplication::setStyle() function. It can also be specified by the + user of the application, using the \c -style command-line option: + + \snippet doc/src/snippets/code/src_gui_styles_qstyle.cpp 0 + + If no style is specified, Qt will choose the most appropriate + style for the user's platform or desktop environment. + + A style can also be set on an individual widget using the + QWidget::setStyle() function. + + \section1 Developing Style-Aware Custom Widgets + + If you are developing custom widgets and want them to look good on + all platforms, you can use QStyle functions to perform parts of + the widget drawing, such as drawItemText(), drawItemPixmap(), + drawPrimitive(), drawControl(), and drawComplexControl(). + + Most QStyle draw functions take four arguments: + \list + \o an enum value specifying which graphical element to draw + \o a QStyleOption specifying how and where to render that element + \o a QPainter that should be used to draw the element + \o a QWidget on which the drawing is performed (optional) + \endlist + + For example, if you want to draw a focus rectangle on your + widget, you can write: + + \snippet doc/src/snippets/styles/styles.cpp 1 + + QStyle gets all the information it needs to render the graphical + element from QStyleOption. The widget is passed as the last + argument in case the style needs it to perform special effects + (such as animated default buttons on Mac OS X), but it isn't + mandatory. In fact, you can use QStyle to draw on any paint + device, not just widgets, by setting the QPainter properly. + + QStyleOption has various subclasses for the various types of + graphical elements that can be drawn. For example, + PE_FrameFocusRect expects a QStyleOptionFocusRect argument. + + To ensure that drawing operations are as fast as possible, + QStyleOption and its subclasses have public data members. See the + QStyleOption class documentation for details on how to use it. + + For convenience, Qt provides the QStylePainter class, which + combines a QStyle, a QPainter, and a QWidget. This makes it + possible to write + + \snippet doc/src/snippets/styles/styles.cpp 5 + \dots + \snippet doc/src/snippets/styles/styles.cpp 7 + + instead of + + \snippet doc/src/snippets/styles/styles.cpp 2 + \dots + \snippet doc/src/snippets/styles/styles.cpp 3 + + \section1 Creating a Custom Style + + You can create a custom look and feel for your application by + creating a custom style. There are two approaches to creating a + custom style. In the static approach, you either choose an + existing QStyle class, subclass it, and reimplement virtual + functions to provide the custom behavior, or you create an entire + QStyle class from scratch. In the dynamic approach, you modify the + behavior of your system style at runtime. The static approach is + described below. The dynamic approach is described in QProxyStyle. + + The first step in the static approach is to pick one of the styles + provided by Qt from which you will build your custom style. Your + choice of QStyle class will depend on which style resembles your + desired style the most. The most general class that you can use as + a base is QCommonStyle (not QStyle). This is because Qt requires + its styles to be \l{QCommonStyle}s. + + Depending on which parts of the base style you want to change, + you must reimplement the functions that are used to draw those + parts of the interface. To illustrate this, we will modify the + look of the spin box arrows drawn by QWindowsStyle. The arrows + are \e{primitive elements} that are drawn by the drawPrimitive() + function, so we need to reimplement that function. We need the + following class declaration: + + \snippet doc/src/snippets/customstyle/customstyle.h 0 + + To draw its up and down arrows, QSpinBox uses the + PE_IndicatorSpinUp and PE_IndicatorSpinDown primitive elements. + Here's how to reimplement the drawPrimitive() function to draw + them differently: + + \snippet doc/src/snippets/customstyle/customstyle.cpp 2 + \snippet doc/src/snippets/customstyle/customstyle.cpp 3 + \snippet doc/src/snippets/customstyle/customstyle.cpp 4 + + Notice that we don't use the \c widget argument, except to pass it + on to the QWindowStyle::drawPrimitive() function. As mentioned + earlier, the information about what is to be drawn and how it + should be drawn is specified by a QStyleOption object, so there is + no need to ask the widget. + + If you need to use the \c widget argument to obtain additional + information, be careful to ensure that it isn't 0 and that it is + of the correct type before using it. For example: + + \snippet doc/src/snippets/customstyle/customstyle.cpp 0 + \dots + \snippet doc/src/snippets/customstyle/customstyle.cpp 1 + + When implementing a custom style, you cannot assume that the + widget is a QSpinBox just because the enum value is called + PE_IndicatorSpinUp or PE_IndicatorSpinDown. + + The documentation for the \l{widgets/styles}{Styles} example + covers this topic in more detail. + + \warning Qt style sheets are currently not supported for custom QStyle + subclasses. We plan to address this in some future release. + + + \section1 Using a Custom Style + + There are several ways of using a custom style in a Qt + application. The simplest way is to pass the custom style to the + QApplication::setStyle() static function before creating the + QApplication object: + + \snippet snippets/customstyle/main.cpp using a custom style + + You can call QApplication::setStyle() at any time, but by calling + it before the constructor, you ensure that the user's preference, + set using the \c -style command-line option, is respected. + + You may want to make your custom style available for use in other + applications, which may not be yours and hence not available for + you to recompile. The Qt Plugin system makes it possible to create + styles as plugins. Styles created as plugins are loaded as shared + objects at runtime by Qt itself. Please refer to the \link + plugins-howto.html Qt Plugin\endlink documentation for more + information on how to go about creating a style plugin. + + Compile your plugin and put it into Qt's \c plugins/styles + directory. We now have a pluggable style that Qt can load + automatically. To use your new style with existing applications, + simply start the application with the following argument: + + \snippet doc/src/snippets/code/src_gui_styles_qstyle.cpp 1 + + The application will use the look and feel from the custom style you + implemented. + + \section1 Right-to-Left Desktops + + Languages written from right to left (such as Arabic and Hebrew) + usually also mirror the whole layout of widgets, and require the + light to come from the screen's top-right corner instead of + top-left. + + If you create a custom style, you should take special care when + drawing asymmetric elements to make sure that they also look + correct in a mirrored layout. An easy way to test your styles is + to run applications with the \c -reverse command-line option or + to call QApplication::setLayoutDirection() in your \c main() + function. + + Here are some things to keep in mind when making a style work well in a + right-to-left environment: + + \list + \o subControlRect() and subElementRect() return rectangles in screen coordinates + \o QStyleOption::direction indicates in which direction the item should be drawn in + \o If a style is not right-to-left aware it will display items as if it were left-to-right + \o visualRect(), visualPos(), and visualAlignment() are helpful functions that will + translate from logical to screen representations. + \o alignedRect() will return a logical rect aligned for the current direction + \endlist + + \section1 Styles in Item Views + + The painting of items in views is performed by a delegate. Qt's + default delegate, QStyledItemDelegate, is also used for for calculating bounding + rectangles of items, and their sub-elements for the various kind + of item \l{Qt::ItemDataRole}{data roles} + QStyledItemDelegate supports. See the QStyledItemDelegate class + description to find out which datatypes and roles are supported. You + can read more about item data roles in \l{Model/View Programming}. + + When QStyledItemDelegate paints its items, it draws + CE_ItemViewItem, and calculates their size with CT_ItemViewItem. + Note also that it uses SE_ItemViewItemText to set the size of + editors. When implementing a style to customize drawing of item + views, you need to check the implementation of QCommonStyle (and + any other subclasses from which your style + inherits). This way, you find out which and how + other style elements are painted, and you can then reimplement the + painting of elements that should be drawn differently. + + We include a small example where we customize the drawing of item + backgrounds. + + \snippet doc/src/snippets/customviewstyle.cpp 0 + + The primitive element PE_PanelItemViewItem is responsible for + painting the background of items, and is called from + \l{QCommonStyle}'s implementation of CE_ItemViewItem. + + To add support for drawing of new datatypes and item data roles, + it is necessary to create a custom delegate. But if you only + need to support the datatypes implemented by the default + delegate, a custom style does not need an accompanying + delegate. The QStyledItemDelegate class description gives more + information on custom delegates. + + The drawing of item view headers is also done by the style, giving + control over size of header items and row and column sizes. + + \sa QStyleOption, QStylePainter, {Styles Example}, + {Styles and Style Aware Widgets}, QStyledItemDelegate +*/ + +/*! + Constructs a style object. +*/ +QStyle::QStyle() + : QObject(*new QStylePrivate) +{ + Q_D(QStyle); + d->proxyStyle = this; +} + +/*! + \internal + + Constructs a style object. +*/ +QStyle::QStyle(QStylePrivate &dd) + : QObject(dd) +{ + Q_D(QStyle); + d->proxyStyle = this; +} + +/*! + Destroys the style object. +*/ +QStyle::~QStyle() +{ +} + +/*! + Initializes the appearance of the given \a widget. + + This function is called for every widget at some point after it + has been fully created but just \e before it is shown for the very + first time. + + Note that the default implementation does nothing. Reasonable + actions in this function might be to call the + QWidget::setBackgroundMode() function for the widget. Do not use + the function to set, for example, the geometry. Reimplementing + this function provides a back-door through which the appearance + of a widget can be changed, but with Qt's style engine it is + rarely necessary to implement this function; reimplement + drawItemPixmap(), drawItemText(), drawPrimitive(), etc. instead. + + The QWidget::inherits() function may provide enough information to + allow class-specific customizations. But because new QStyle + subclasses are expected to work reasonably with all current and \e + future widgets, limited use of hard-coded customization is + recommended. + + \sa unpolish() +*/ +void QStyle::polish(QWidget * /* widget */) +{ +} + +/*! + Uninitialize the given \a{widget}'s appearance. + + This function is the counterpart to polish(). It is called for + every polished widget whenever the style is dynamically changed; + the former style has to unpolish its settings before the new style + can polish them again. + + Note that unpolish() will only be called if the widget is + destroyed. This can cause problems in some cases, e.g, if you + remove a widget from the UI, cache it, and then reinsert it after + the style has changed; some of Qt's classes cache their widgets. + + \sa polish() +*/ +void QStyle::unpolish(QWidget * /* widget */) +{ +} + +/*! + \fn void QStyle::polish(QApplication * application) + \overload + + Late initialization of the given \a application object. +*/ +void QStyle::polish(QApplication * /* app */) +{ +} + +/*! + \fn void QStyle::unpolish(QApplication * application) + \overload + + Uninitialize the given \a application. +*/ +void QStyle::unpolish(QApplication * /* app */) +{ +} + +/*! + \fn void QStyle::polish(QPalette & palette) + \overload + + Changes the \a palette according to style specific requirements + for color palettes (if any). + + \sa QPalette, QApplication::setPalette() +*/ +void QStyle::polish(QPalette & /* pal */) +{ +} + +/*! + \fn QRect QStyle::itemTextRect(const QFontMetrics &metrics, const QRect &rectangle, int alignment, bool enabled, const QString &text) const + + Returns the area within the given \a rectangle in which to draw + the provided \a text according to the specified font \a metrics + and \a alignment. The \a enabled parameter indicates whether or + not the associated item is enabled. + + If the given \a rectangle is larger than the area needed to render + the \a text, the rectangle that is returned will be offset within + \a rectangle according to the specified \a alignment. For + example, if \a alignment is Qt::AlignCenter, the returned + rectangle will be centered within \a rectangle. If the given \a + rectangle is smaller than the area needed, the returned rectangle + will be the smallest rectangle large enough to render the \a text. + + \sa Qt::Alignment +*/ +QRect QStyle::itemTextRect(const QFontMetrics &metrics, const QRect &rect, int alignment, bool enabled, + const QString &text) const +{ + QRect result; + int x, y, w, h; + rect.getRect(&x, &y, &w, &h); + if (!text.isEmpty()) { + result = metrics.boundingRect(x, y, w, h, alignment, text); + if (!enabled && proxy()->styleHint(SH_EtchDisabledText)) { + result.setWidth(result.width()+1); + result.setHeight(result.height()+1); + } + } else { + result = QRect(x, y, w, h); + } + return result; +} + +/*! + \fn QRect QStyle::itemPixmapRect(const QRect &rectangle, int alignment, const QPixmap &pixmap) const + + Returns the area within the given \a rectangle in which to draw + the specified \a pixmap according to the defined \a alignment. +*/ +QRect QStyle::itemPixmapRect(const QRect &rect, int alignment, const QPixmap &pixmap) const +{ + QRect result; + int x, y, w, h; + rect.getRect(&x, &y, &w, &h); + if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter) + y += h/2 - pixmap.height()/2; + else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom) + y += h - pixmap.height(); + if ((alignment & Qt::AlignRight) == Qt::AlignRight) + x += w - pixmap.width(); + else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter) + x += w/2 - pixmap.width()/2; + else if ((alignment & Qt::AlignLeft) != Qt::AlignLeft && QApplication::isRightToLeft()) + x += w - pixmap.width(); + result = QRect(x, y, pixmap.width(), pixmap.height()); + return result; +} + +/*! + \fn void QStyle::drawItemText(QPainter *painter, const QRect &rectangle, int alignment, const QPalette &palette, bool enabled, const QString& text, QPalette::ColorRole textRole) const + + Draws the given \a text in the specified \a rectangle using the + provided \a painter and \a palette. + + The text is drawn using the painter's pen, and aligned and wrapped + according to the specified \a alignment. If an explicit \a + textRole is specified, the text is drawn using the \a palette's + color for the given role. The \a enabled parameter indicates + whether or not the item is enabled; when reimplementing this + function, the \a enabled parameter should influence how the item is + drawn. + + \sa Qt::Alignment, drawItemPixmap() +*/ +void QStyle::drawItemText(QPainter *painter, const QRect &rect, int alignment, const QPalette &pal, + bool enabled, const QString& text, QPalette::ColorRole textRole) const +{ + if (text.isEmpty()) + return; + QPen savedPen; + if (textRole != QPalette::NoRole) { + savedPen = painter->pen(); + painter->setPen(QPen(pal.brush(textRole), savedPen.widthF())); + } + if (!enabled) { + if (proxy()->styleHint(SH_DitherDisabledText)) { + QRect br; + painter->drawText(rect, alignment, text, &br); + painter->fillRect(br, QBrush(painter->background().color(), Qt::Dense5Pattern)); + return; + } else if (proxy()->styleHint(SH_EtchDisabledText)) { + QPen pen = painter->pen(); + painter->setPen(pal.light().color()); + painter->drawText(rect.adjusted(1, 1, 1, 1), alignment, text); + painter->setPen(pen); + } + } + painter->drawText(rect, alignment, text); + if (textRole != QPalette::NoRole) + painter->setPen(savedPen); +} + +/*! + \fn void QStyle::drawItemPixmap(QPainter *painter, const QRect &rectangle, int alignment, + const QPixmap &pixmap) const + + Draws the given \a pixmap in the specified \a rectangle, according + to the specified \a alignment, using the provided \a painter. + + \sa drawItemText() +*/ + +void QStyle::drawItemPixmap(QPainter *painter, const QRect &rect, int alignment, + const QPixmap &pixmap) const +{ + QRect aligned = alignedRect(QApplication::layoutDirection(), QFlag(alignment), pixmap.size(), rect); + QRect inter = aligned.intersected(rect); + + painter->drawPixmap(inter.x(), inter.y(), pixmap, inter.x() - aligned.x(), inter.y() - aligned.y(), inter.width(), inter.height()); +} + +/*! + \enum QStyle::PrimitiveElement + + This enum describes the various primitive elements. A + primitive element is a common GUI element, such as a checkbox + indicator or button bevel. + + \omitvalue PE_IndicatorViewItemCheck + \value PE_FrameStatusBar Frame + + \value PE_PanelButtonCommand Button used to initiate an action, for + example, a QPushButton. + + \value PE_FrameDefaultButton This frame around a default button, e.g. in a dialog. + \value PE_PanelButtonBevel Generic panel with a button bevel. + \value PE_PanelButtonTool Panel for a Tool button, used with QToolButton. + \value PE_PanelLineEdit Panel for a QLineEdit. + \value PE_IndicatorButtonDropDown Indicator for a drop down button, for example, a tool + button that displays a menu. + + \value PE_FrameFocusRect Generic focus indicator. + + \value PE_IndicatorArrowUp Generic Up arrow. + \value PE_IndicatorArrowDown Generic Down arrow. + \value PE_IndicatorArrowRight Generic Right arrow. + \value PE_IndicatorArrowLeft Generic Left arrow. + + \value PE_IndicatorSpinUp Up symbol for a spin widget, for example a QSpinBox. + \value PE_IndicatorSpinDown Down symbol for a spin widget. + \value PE_IndicatorSpinPlus Increase symbol for a spin widget. + \value PE_IndicatorSpinMinus Decrease symbol for a spin widget. + + \value PE_IndicatorItemViewItemCheck On/off indicator for a view item. + + \value PE_IndicatorCheckBox On/off indicator, for example, a QCheckBox. + \value PE_IndicatorRadioButton Exclusive on/off indicator, for example, a QRadioButton. + + \value PE_Q3DockWindowSeparator Item separator for Qt 3 compatible dock window + and toolbar contents. + \value PE_IndicatorDockWidgetResizeHandle Resize handle for dock windows. + + \value PE_Frame Generic frame + \value PE_FrameMenu Frame for popup windows/menus; see also QMenu. + \value PE_PanelMenuBar Panel for menu bars. + \value PE_PanelScrollAreaCorner Panel at the bottom-right (or + bottom-left) corner of a scroll area. + + \value PE_FrameDockWidget Panel frame for dock windows and toolbars. + \value PE_FrameTabWidget Frame for tab widgets. + \value PE_FrameLineEdit Panel frame for line edits. + \value PE_FrameGroupBox Panel frame around group boxes. + \value PE_FrameButtonBevel Panel frame for a button bevel. + \value PE_FrameButtonTool Panel frame for a tool button. + + \value PE_IndicatorHeaderArrow Arrow used to indicate sorting on a list or table + header. + \value PE_FrameStatusBarItem Frame for an item of a status bar; see also QStatusBar. + + \value PE_FrameWindow Frame around a MDI window or a docking window. + + \value PE_Q3Separator Qt 3 compatible generic separator. + + \value PE_IndicatorMenuCheckMark Check mark used in a menu. + + \value PE_IndicatorProgressChunk Section of a progress bar indicator; see also QProgressBar. + + \value PE_Q3CheckListController Qt 3 compatible controller part of a list view item. + \value PE_Q3CheckListIndicator Qt 3 compatible checkbox part of a list view item. + \value PE_Q3CheckListExclusiveIndicator Qt 3 compatible radio button part of a list view item. + + \value PE_IndicatorBranch Lines used to represent the branch of a tree in a tree view. + \value PE_IndicatorToolBarHandle The handle of a toolbar. + \value PE_IndicatorToolBarSeparator The separator in a toolbar. + \value PE_PanelToolBar The panel for a toolbar. + \value PE_PanelTipLabel The panel for a tip label. + \value PE_FrameTabBarBase The frame that is drawn for a tab bar, ususally drawn for a tab bar that isn't part of a tab widget. + \value PE_IndicatorTabTear An indicator that a tab is partially scrolled out of the visible tab bar when there are many tabs. + \value PE_IndicatorColumnViewArrow An arrow in a QColumnView. + + \value PE_Widget A plain QWidget. + + \value PE_CustomBase Base value for custom primitive elements. + All values above this are reserved for custom use. Custom values + must be greater than this value. + + \value PE_IndicatorItemViewItemDrop An indicator that is drawn to show where an item in an item view is about to be dropped + during a drag-and-drop operation in an item view. + \value PE_PanelItemViewItem The background for an item in an item view. + \value PE_PanelItemViewRow The background of a row in an item view. + + \value PE_PanelStatusBar The panel for a status bar. + + \value PE_IndicatorTabClose The close button on a tab bar. + \value PE_PanelMenu The panel for a menu. + + \sa drawPrimitive() +*/ + +/*! + \typedef QStyle::SFlags + \internal +*/ + +/*! + \typedef QStyle::SCFlags + \internal +*/ + +/*! + \enum QStyle::StateFlag + + This enum describes flags that are used when drawing primitive + elements. + + Note that not all primitives use all of these flags, and that the + flags may mean different things to different items. + + \value State_None Indicates that the widget does not have a state. + \value State_Active Indicates that the widget is active. + \value State_AutoRaise Used to indicate if auto-raise appearance should be usd on a tool button. + \value State_Children Used to indicate if an item view branch has children. + \value State_DownArrow Used to indicate if a down arrow should be visible on the widget. + \value State_Editing Used to indicate if an editor is opened on the widget. + \value State_Enabled Used to indicate if the widget is enabled. + \value State_HasEditFocus Used to indicate if the widget currently has edit focus. + \value State_HasFocus Used to indicate if the widget has focus. + \value State_Horizontal Used to indicate if the widget is laid out horizontally, for example. a tool bar. + \value State_KeyboardFocusChange Used to indicate if the focus was changed with the keyboard, e.g., tab, backtab or shortcut. + \value State_MouseOver Used to indicate if the widget is under the mouse. + \value State_NoChange Used to indicate a tri-state checkbox. + \value State_Off Used to indicate if the widget is not checked. + \value State_On Used to indicate if the widget is checked. + \value State_Raised Used to indicate if a button is raised. + \value State_ReadOnly Used to indicate if a widget is read-only. + \value State_Selected Used to indicate if a widget is selected. + \value State_Item Used by item views to indicate if a horizontal branch should be drawn. + \value State_Open Used by item views to indicate if the tree branch is open. + \value State_Sibling Used by item views to indicate if a vertical line needs to be drawn (for siblings). + \value State_Sunken Used to indicate if the widget is sunken or pressed. + \value State_UpArrow Used to indicate if an up arrow should be visible on the widget. + \value State_Mini Used to indicate a mini style Mac widget or button. + \value State_Small Used to indicate a small style Mac widget or button. + \omitvalue State_Window + \omitvalue State_Bottom + \omitvalue State_Default + \omitvalue State_FocusAtBorder + \omitvalue State_Top + + \sa drawPrimitive() +*/ + +/*! + \fn void QStyle::drawPrimitive(PrimitiveElement element, const QStyleOption *option, \ + QPainter *painter, const QWidget *widget) const + + Draws the given primitive \a element with the provided \a painter using the style + options specified by \a option. + + The \a widget argument is optional and may contain a widget that may + aid in drawing the primitive element. + + The table below is listing the primitive elements and their + associated style option subclasses. The style options contain all + the parameters required to draw the elements, including + QStyleOption::state which holds the style flags that are used when + drawing. The table also describes which flags that are set when + casting the given option to the appropriate subclass. + + Note that if a primitive element is not listed here, it is because + it uses a plain QStyleOption object. + + \table + \header \o Primitive Element \o QStyleOption Subclass \o Style Flag \o Remark + \row \o \l PE_FrameFocusRect \o \l QStyleOptionFocusRect + \o \l State_FocusAtBorder + \o Whether the focus is is at the border or inside the widget. + \row \o{1,2} \l PE_IndicatorCheckBox \o{1,2} \l QStyleOptionButton + \o \l State_NoChange \o Indicates a "tri-state" checkbox. + \row \o \l State_On \o Indicates the indicator is checked. + \row \o \l PE_IndicatorRadioButton \o \l QStyleOptionButton + \o \l State_On \o Indicates that a radio button is selected. + \row \o{1,3} \l PE_Q3CheckListExclusiveIndicator, \l PE_Q3CheckListIndicator + \o{1,3} \l QStyleOptionQ3ListView \o \l State_On + \o Indicates whether or not the controller is selected. + \row \o \l State_NoChange \o Indicates a "tri-state" controller. + \row \o \l State_Enabled \o Indicates the controller is enabled. + \row \o{1,4} \l PE_IndicatorBranch \o{1,4} \l QStyleOption + \o \l State_Children \o Indicates that the control for expanding the tree to show child items, should be drawn. + \row \o \l State_Item \o Indicates that a horizontal branch (to show a child item), should be drawn. + \row \o \l State_Open \o Indicates that the tree branch is expanded. + \row \o \l State_Sibling \o Indicates that a vertical line (to show a sibling item), should be drawn. + \row \o \l PE_IndicatorHeaderArrow \o \l QStyleOptionHeader + \o \l State_UpArrow \o Indicates that the arrow should be drawn up; + otherwise it should be down. + \row \o \l PE_FrameGroupBox, \l PE_Frame, \l PE_FrameLineEdit, + \l PE_FrameMenu, \l PE_FrameDockWidget, \l PE_FrameWindow + \o \l QStyleOptionFrame \o \l State_Sunken + \o Indicates that the Frame should be sunken. + \row \o \l PE_IndicatorToolBarHandle \o \l QStyleOption + \o \l State_Horizontal \o Indicates that the window handle is horizontal + instead of vertical. + \row \o \l PE_Q3DockWindowSeparator \o \l QStyleOption + \o \l State_Horizontal \o Indicates that the separator is horizontal + instead of vertical. + \row \o \l PE_IndicatorSpinPlus, \l PE_IndicatorSpinMinus, \l PE_IndicatorSpinUp, + \l PE_IndicatorSpinDown, + \o \l QStyleOptionSpinBox + \o \l State_Sunken \o Indicates that the button is pressed. + \row \o{1,5} \l PE_PanelButtonCommand + \o{1,5} \l QStyleOptionButton + \o \l State_Enabled \o Set if the button is enabled. + \row \o \l State_HasFocus \o Set if the button has input focus. + \row \o \l State_Raised \o Set if the button is not down, not on and not flat. + \row \o \l State_On \o Set if the button is a toggle button and is toggled on. + \row \o \l State_Sunken + \o Set if the button is down (i.e., the mouse button or the + space bar is pressed on the button). + \endtable + + \sa drawComplexControl(), drawControl() +*/ + +/*! + \enum QStyle::ControlElement + + This enum represents a control element. A control element is a + part of a widget that performs some action or displays information + to the user. + + \value CE_PushButton A QPushButton, draws CE_PushButtonBevel, CE_PushButtonLabel and PE_FrameFocusRect. + \value CE_PushButtonBevel The bevel and default indicator of a QPushButton. + \value CE_PushButtonLabel The label (an icon with text or pixmap) of a QPushButton. + + \value CE_DockWidgetTitle Dock window title. + \value CE_Splitter Splitter handle; see also QSplitter. + + + \value CE_CheckBox A QCheckBox, draws a PE_IndicatorCheckBox, a CE_CheckBoxLabel and a PE_FrameFocusRect. + \value CE_CheckBoxLabel The label (text or pixmap) of a QCheckBox. + + \value CE_RadioButton A QRadioButton, draws a PE_IndicatorRadioButton, a CE_RadioButtonLabel and a PE_FrameFocusRect. + \value CE_RadioButtonLabel The label (text or pixmap) of a QRadioButton. + + \value CE_TabBarTab The tab and label within a QTabBar. + \value CE_TabBarTabShape The tab shape within a tab bar. + \value CE_TabBarTabLabel The label within a tab. + + \value CE_ProgressBar A QProgressBar, draws CE_ProgressBarGroove, CE_ProgressBarContents and CE_ProgressBarLabel. + \value CE_ProgressBarGroove The groove where the progress + indicator is drawn in a QProgressBar. + \value CE_ProgressBarContents The progress indicator of a QProgressBar. + \value CE_ProgressBarLabel The text label of a QProgressBar. + + \value CE_ToolButtonLabel A tool button's label. + + \value CE_MenuBarItem A menu item in a QMenuBar. + \value CE_MenuBarEmptyArea The empty area of a QMenuBar. + + \value CE_MenuItem A menu item in a QMenu. + \value CE_MenuScroller Scrolling areas in a QMenu when the + style supports scrolling. + \value CE_MenuTearoff A menu item representing the tear off section of + a QMenu. + \value CE_MenuEmptyArea The area in a menu without menu items. + \value CE_MenuHMargin The horizontal extra space on the left/right of a menu. + \value CE_MenuVMargin The vertical extra space on the top/bottom of a menu. + + \value CE_Q3DockWindowEmptyArea The empty area of a QDockWidget. + + \value CE_ToolBoxTab The toolbox's tab and label within a QToolBox. + \value CE_SizeGrip Window resize handle; see also QSizeGrip. + + \value CE_Header A header. + \value CE_HeaderSection A header section. + \value CE_HeaderLabel The header's label. + + \value CE_ScrollBarAddLine Scroll bar line increase indicator. + (i.e., scroll down); see also QScrollBar. + \value CE_ScrollBarSubLine Scroll bar line decrease indicator (i.e., scroll up). + \value CE_ScrollBarAddPage Scolllbar page increase indicator (i.e., page down). + \value CE_ScrollBarSubPage Scroll bar page decrease indicator (i.e., page up). + \value CE_ScrollBarSlider Scroll bar slider. + \value CE_ScrollBarFirst Scroll bar first line indicator (i.e., home). + \value CE_ScrollBarLast Scroll bar last line indicator (i.e., end). + + \value CE_RubberBand Rubber band used in for example an icon view. + + \value CE_FocusFrame Focus frame that is style controlled. + + \value CE_ItemViewItem An item inside an item view. + + \value CE_CustomBase Base value for custom control elements; + custom values must be greater than this value. + \value CE_ComboBoxLabel The label of a non-editable QComboBox. + \value CE_ToolBar A toolbar like QToolBar. + \value CE_ToolBoxTabShape The toolbox's tab shape. + \value CE_ToolBoxTabLabel The toolbox's tab label. + \value CE_HeaderEmptyArea The area of a header view where there are no header sections. + + \value CE_ShapedFrame The frame with the shape specified in the QStyleOptionFrameV3; see QFrame. + + \omitvalue CE_ColumnViewGrip + + \sa drawControl() +*/ + +/*! + \fn void QStyle::drawControl(ControlElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const + + Draws the given \a element with the provided \a painter with the + style options specified by \a option. + + The \a widget argument is optional and can be used as aid in + drawing the control. The \a option parameter is a pointer to a + QStyleOption object that can be cast to the correct subclass + using the qstyleoption_cast() function. + + The table below is listing the control elements and their + associated style option subclass. The style options contain all + the parameters required to draw the controls, including + QStyleOption::state which holds the style flags that are used when + drawing. The table also describes which flags that are set when + casting the given option to the appropriate subclass. + + Note that if a control element is not listed here, it is because + it uses a plain QStyleOption object. + + \table + \header \o Control Element \o QStyleOption Subclass \o Style Flag \o Remark + \row \o{1,5} \l CE_MenuItem, \l CE_MenuBarItem + \o{1,5} \l QStyleOptionMenuItem + \o \l State_Selected \o The menu item is currently selected item. + \row \o \l State_Enabled \o The item is enabled. + \row \o \l State_DownArrow \o Indicates that a scroll down arrow should be drawn. + \row \o \l State_UpArrow \o Indicates that a scroll up arrow should be drawn + \row \o \l State_HasFocus \o Set if the menu bar has input focus. + + \row \o{1,5} \l CE_PushButton, \l CE_PushButtonBevel, \l CE_PushButtonLabel + \o{1,5} \l QStyleOptionButton + \o \l State_Enabled \o Set if the button is enabled. + \row \o \l State_HasFocus \o Set if the button has input focus. + \row \o \l State_Raised \o Set if the button is not down, not on and not flat. + \row \o \l State_On \o Set if the button is a toggle button and is toggled on. + \row \o \l State_Sunken + \o Set if the button is down (i.e., the mouse button or the + space bar is pressed on the button). + + \row \o{1,6} \l CE_RadioButton, \l CE_RadioButtonLabel, + \l CE_CheckBox, \l CE_CheckBoxLabel + \o{1,6} \l QStyleOptionButton + \o \l State_Enabled \o Set if the button is enabled. + \row \o \l State_HasFocus \o Set if the button has input focus. + \row \o \l State_On \o Set if the button is checked. + \row \o \l State_Off \o Set if the button is not checked. + \row \o \l State_NoChange \o Set if the button is in the NoChange state. + \row \o \l State_Sunken + \o Set if the button is down (i.e., the mouse button or + the space bar is pressed on the button). + + \row \o{1,2} \l CE_ProgressBarContents, \l CE_ProgressBarLabel, + \l CE_ProgressBarGroove + \o{1,2} \l QStyleOptionProgressBar + \o \l State_Enabled \o Set if the progress bar is enabled. + \row \o \l State_HasFocus \o Set if the progress bar has input focus. + + \row \o \l CE_Header, \l CE_HeaderSection, \l CE_HeaderLabel \o \l QStyleOptionHeader \o \o + + \row \o{1,3} \l CE_TabBarTab, CE_TabBarTabShape, CE_TabBarTabLabel + \o{1,3} \l QStyleOptionTab + \o \l State_Enabled \o Set if the tab bar is enabled. + \row \o \l State_Selected \o The tab bar is the currently selected tab bar. + \row \o \l State_HasFocus \o Set if the tab bar tab has input focus. + + \row \o{1,7} \l CE_ToolButtonLabel + \o{1,7} \l QStyleOptionToolButton + \o \l State_Enabled \o Set if the tool button is enabled. + \row \o \l State_HasFocus \o Set if the tool button has input focus. + \row \o \l State_Sunken + \o Set if the tool button is down (i.e., a mouse button or + the space bar is pressed). + \row \o \l State_On \o Set if the tool button is a toggle button and is toggled on. + \row \o \l State_AutoRaise \o Set if the tool button has auto-raise enabled. + \row \o \l State_MouseOver \o Set if the mouse pointer is over the tool button. + \row \o \l State_Raised \o Set if the button is not down and is not on. + + \row \o \l CE_ToolBoxTab \o \l QStyleOptionToolBox + \o \l State_Selected \o The tab is the currently selected tab. + \row \o{1,3} \l CE_HeaderSection \o{1,3} \l QStyleOptionHeader + \o \l State_Sunken \o Indicates that the section is pressed. + \row \o \l State_UpArrow \o Indicates that the sort indicator should be pointing up. + \row \o \l State_DownArrow \o Indicates that the sort indicator should be pointing down. + \endtable + + \sa drawPrimitive(), drawComplexControl() +*/ + +/*! + \enum QStyle::SubElement + + This enum represents a sub-area of a widget. Style implementations + use these areas to draw the different parts of a widget. + + \value SE_PushButtonContents Area containing the label (icon + with text or pixmap). + \value SE_PushButtonFocusRect Area for the focus rect (usually + larger than the contents rect). + \value SE_PushButtonLayoutItem Area that counts for the parent layout. + + \value SE_CheckBoxIndicator Area for the state indicator (e.g., check mark). + \value SE_CheckBoxContents Area for the label (text or pixmap). + \value SE_CheckBoxFocusRect Area for the focus indicator. + \value SE_CheckBoxClickRect Clickable area, defaults to SE_CheckBoxFocusRect. + \value SE_CheckBoxLayoutItem Area that counts for the parent layout. + + \value SE_DateTimeEditLayoutItem Area that counts for the parent layout. + + \value SE_RadioButtonIndicator Area for the state indicator. + \value SE_RadioButtonContents Area for the label. + \value SE_RadioButtonFocusRect Area for the focus indicator. + \value SE_RadioButtonClickRect Clickable area, defaults to SE_RadioButtonFocusRect. + \value SE_RadioButtonLayoutItem Area that counts for the parent layout. + + \value SE_ComboBoxFocusRect Area for the focus indicator. + + \value SE_SliderFocusRect Area for the focus indicator. + \value SE_SliderLayoutItem Area that counts for the parent layout. + + \value SE_SpinBoxLayoutItem Area that counts for the parent layout. + + \value SE_Q3DockWindowHandleRect Area for the tear-off handle. + + \value SE_ProgressBarGroove Area for the groove. + \value SE_ProgressBarContents Area for the progress indicator. + \value SE_ProgressBarLabel Area for the text label. + \value SE_ProgressBarLayoutItem Area that counts for the parent layout. + + \omitvalue SE_DialogButtonAccept + \omitvalue SE_DialogButtonReject + \omitvalue SE_DialogButtonApply + \omitvalue SE_DialogButtonHelp + \omitvalue SE_DialogButtonAll + \omitvalue SE_DialogButtonRetry + \omitvalue SE_DialogButtonAbort + \omitvalue SE_DialogButtonIgnore + \omitvalue SE_DialogButtonCustom + \omitvalue SE_ViewItemCheckIndicator + + \value SE_FrameContents Area for a frame's contents. + \value SE_ShapedFrameContents Area for a frame's contents using the shape in QStyleOptionFrameV3; see QFrame + \value SE_FrameLayoutItem Area that counts for the parent layout. + + \value SE_HeaderArrow Area for the sort indicator for a header. + \value SE_HeaderLabel Area for the label in a header. + + \value SE_LabelLayoutItem Area that counts for the parent layout. + + \value SE_LineEditContents Area for a line edit's contents. + + \value SE_TabWidgetLeftCorner Area for the left corner widget in a tab widget. + \value SE_TabWidgetRightCorner Area for the right corner widget in a tab widget. + \value SE_TabWidgetTabBar Area for the tab bar widget in a tab widget. + \value SE_TabWidgetTabContents Area for the contents of the tab widget. + \value SE_TabWidgetTabPane Area for the pane of a tab widget. + \value SE_TabWidgetLayoutItem Area that counts for the parent layout. + + \value SE_ToolBoxTabContents Area for a toolbox tab's icon and label. + + \value SE_ToolButtonLayoutItem Area that counts for the parent layout. + + \value SE_ItemViewItemCheckIndicator Area for a view item's check mark. + + \value SE_TabBarTearIndicator Area for the tear indicator on a tab bar with scroll arrows. + + \value SE_TreeViewDisclosureItem Area for the actual disclosure item in a tree branch. + + \value SE_DialogButtonBoxLayoutItem Area that counts for the parent layout. + + \value SE_GroupBoxLayoutItem Area that counts for the parent layout. + + \value SE_CustomBase Base value for custom sub-elements. + Custom values must be greater than this value. + + \value SE_DockWidgetFloatButton The float button of a dock + widget. + \value SE_DockWidgetTitleBarText The text bounds of the dock + widgets title. + \value SE_DockWidgetCloseButton The close button of a dock + widget. + \value SE_DockWidgetIcon The icon of a dock widget. + \value SE_ComboBoxLayoutItem Area that counts for the parent layout. + + + \value SE_ItemViewItemDecoration Area for a view item's decoration (icon). + \value SE_ItemViewItemText Area for a view item's text. + \value SE_ItemViewItemFocusRect Area for a view item's focus rect. + + \value SE_TabBarTabLeftButton Area for a widget on the left side of a tab in a tab bar. + \value SE_TabBarTabRightButton Area for a widget on the right side of a tab in a tab bar. + \value SE_TabBarTabText Area for the text on a tab in a tab bar. + + \value SE_ToolBarHandle Area for the handle of a tool bar. + + \sa subElementRect() +*/ + +/*! + \fn QRect QStyle::subElementRect(SubElement element, const QStyleOption *option, const QWidget *widget) const + + Returns the sub-area for the given \a element as described in the + provided style \a option. The returned rectangle is defined in + screen coordinates. + + The \a widget argument is optional and can be used to aid + determining the area. The QStyleOption object can be cast to the + appropriate type using the qstyleoption_cast() function. See the + table below for the appropriate \a option casts: + + \table + \header \o Sub Element \o QStyleOption Subclass + \row \o \l SE_PushButtonContents \o \l QStyleOptionButton + \row \o \l SE_PushButtonFocusRect \o \l QStyleOptionButton + \row \o \l SE_CheckBoxIndicator \o \l QStyleOptionButton + \row \o \l SE_CheckBoxContents \o \l QStyleOptionButton + \row \o \l SE_CheckBoxFocusRect \o \l QStyleOptionButton + \row \o \l SE_RadioButtonIndicator \o \l QStyleOptionButton + \row \o \l SE_RadioButtonContents \o \l QStyleOptionButton + \row \o \l SE_RadioButtonFocusRect \o \l QStyleOptionButton + \row \o \l SE_ComboBoxFocusRect \o \l QStyleOptionComboBox + \row \o \l SE_Q3DockWindowHandleRect \o \l QStyleOptionQ3DockWindow + \row \o \l SE_ProgressBarGroove \o \l QStyleOptionProgressBar + \row \o \l SE_ProgressBarContents \o \l QStyleOptionProgressBar + \row \o \l SE_ProgressBarLabel \o \l QStyleOptionProgressBar + \endtable +*/ + +/*! + \enum QStyle::ComplexControl + + This enum describes the available complex controls. Complex + controls have different behavior depending upon where the user + clicks on them or which keys are pressed. + + \value CC_SpinBox A spinbox, like QSpinBox. + \value CC_ComboBox A combobox, like QComboBox. + \value CC_ScrollBar A scroll bar, like QScrollBar. + \value CC_Slider A slider, like QSlider. + \value CC_ToolButton A tool button, like QToolButton. + \value CC_TitleBar A Title bar, like those used in QMdiSubWindow. + \value CC_Q3ListView Used for drawing the Q3ListView class. + \value CC_GroupBox A group box, like QGroupBox. + \value CC_Dial A dial, like QDial. + \value CC_MdiControls The minimize, close, and normal + button in the menu bar for a + maximized MDI subwindow. + + \value CC_CustomBase Base value for custom complex controls. Custom + values must be greater than this value. + + \sa SubControl drawComplexControl() +*/ + +/*! + \enum QStyle::SubControl + + This enum describes the available sub controls. A subcontrol is a + control element within a complex control (ComplexControl). + + \value SC_None Special value that matches no other sub control. + + \value SC_ScrollBarAddLine Scroll bar add line (i.e., down/right + arrow); see also QScrollBar. + \value SC_ScrollBarSubLine Scroll bar sub line (i.e., up/left arrow). + \value SC_ScrollBarAddPage Scroll bar add page (i.e., page down). + \value SC_ScrollBarSubPage Scroll bar sub page (i.e., page up). + \value SC_ScrollBarFirst Scroll bar first line (i.e., home). + \value SC_ScrollBarLast Scroll bar last line (i.e., end). + \value SC_ScrollBarSlider Scroll bar slider handle. + \value SC_ScrollBarGroove Special sub-control which contains the + area in which the slider handle may move. + + \value SC_SpinBoxUp Spin widget up/increase; see also QSpinBox. + \value SC_SpinBoxDown Spin widget down/decrease. + \value SC_SpinBoxFrame Spin widget frame. + \value SC_SpinBoxEditField Spin widget edit field. + + \value SC_ComboBoxEditField Combobox edit field; see also QComboBox. + \value SC_ComboBoxArrow Combobox arrow button. + \value SC_ComboBoxFrame Combobox frame. + \value SC_ComboBoxListBoxPopup The reference rectangle for the combobox popup. + Used to calculate the position of the popup. + + \value SC_SliderGroove Special sub-control which contains the area + in which the slider handle may move. + \value SC_SliderHandle Slider handle. + \value SC_SliderTickmarks Slider tickmarks. + + \value SC_ToolButton Tool button (see also QToolButton). + \value SC_ToolButtonMenu Sub-control for opening a popup menu in a + tool button; see also Q3PopupMenu. + + \value SC_TitleBarSysMenu System menu button (i.e., restore, close, etc.). + \value SC_TitleBarMinButton Minimize button. + \value SC_TitleBarMaxButton Maximize button. + \value SC_TitleBarCloseButton Close button. + \value SC_TitleBarLabel Window title label. + \value SC_TitleBarNormalButton Normal (restore) button. + \value SC_TitleBarShadeButton Shade button. + \value SC_TitleBarUnshadeButton Unshade button. + \value SC_TitleBarContextHelpButton Context Help button. + + \value SC_Q3ListView The list view area. + \value SC_Q3ListViewExpand Expand item (i.e., show/hide child items). + + \value SC_DialHandle The handle of the dial (i.e. what you use to control the dial). + \value SC_DialGroove The groove for the dial. + \value SC_DialTickmarks The tickmarks for the dial. + + \value SC_GroupBoxFrame The frame of a group box. + \value SC_GroupBoxLabel The title of a group box. + \value SC_GroupBoxCheckBox The optional check box of a group box. + \value SC_GroupBoxContents The group box contents. + + \value SC_MdiNormalButton The normal button for a MDI + subwindow in the menu bar. + \value SC_MdiMinButton The minimize button for a MDI + subwindow in the menu bar. + \value SC_MdiCloseButton The close button for a MDI subwindow + in the menu bar. + + \value SC_All Special value that matches all sub-controls. + \omitvalue SC_Q3ListViewBranch + \omitvalue SC_CustomBase + + \sa ComplexControl +*/ + +/*! + \fn void QStyle::drawComplexControl(ComplexControl control, const QStyleOptionComplex *option, QPainter *painter, const QWidget *widget) const + + Draws the given \a control using the provided \a painter with the + style options specified by \a option. + + The \a widget argument is optional and can be used as aid in + drawing the control. + + The \a option parameter is a pointer to a QStyleOptionComplex + object that can be cast to the correct subclass using the + qstyleoption_cast() function. Note that the \c rect member of the + specified \a option must be in logical + coordinates. Reimplementations of this function should use + visualRect() to change the logical coordinates into screen + coordinates before calling the drawPrimitive() or drawControl() + function. + + The table below is listing the complex control elements and their + associated style option subclass. The style options contain all + the parameters required to draw the controls, including + QStyleOption::state which holds the \l {QStyle::StateFlag}{style + flags} that are used when drawing. The table also describes which + flags that are set when casting the given \a option to the + appropriate subclass. + + \table + \header \o Complex Control \o QStyleOptionComplex Subclass \o Style Flag \o Remark + \row \o{1,2} \l{CC_SpinBox} \o{1,2} \l QStyleOptionSpinBox + \o \l State_Enabled \o Set if the spin box is enabled. + \row \o \l State_HasFocus \o Set if the spin box has input focus. + + \row \o{1,2} \l {CC_ComboBox} \o{1,2} \l QStyleOptionComboBox + \o \l State_Enabled \o Set if the combobox is enabled. + \row \o \l State_HasFocus \o Set if the combobox has input focus. + + \row \o{1,2} \l {CC_ScrollBar} \o{1,2} \l QStyleOptionSlider + \o \l State_Enabled \o Set if the scroll bar is enabled. + \row \o \l State_HasFocus \o Set if the scroll bar has input focus. + + \row \o{1,2} \l {CC_Slider} \o{1,2} \l QStyleOptionSlider + \o \l State_Enabled \o Set if the slider is enabled. + \row \o \l State_HasFocus \o Set if the slider has input focus. + + \row \o{1,2} \l {CC_Dial} \o{1,2} \l QStyleOptionSlider + \o \l State_Enabled \o Set if the dial is enabled. + \row \o \l State_HasFocus \o Set if the dial has input focus. + + \row \o{1,6} \l {CC_ToolButton} \o{1,6} \l QStyleOptionToolButton + \o \l State_Enabled \o Set if the tool button is enabled. + \row \o \l State_HasFocus \o Set if the tool button has input focus. + \row \o \l State_DownArrow \o Set if the tool button is down (i.e., a mouse + button or the space bar is pressed). + \row \o \l State_On \o Set if the tool button is a toggle button + and is toggled on. + \row \o \l State_AutoRaise \o Set if the tool button has auto-raise enabled. + \row \o \l State_Raised \o Set if the button is not down, not on, and doesn't + contain the mouse when auto-raise is enabled. + + \row \o \l{CC_TitleBar} \o \l QStyleOptionTitleBar + \o \l State_Enabled \o Set if the title bar is enabled. + + \row \o \l{CC_Q3ListView} \o \l QStyleOptionQ3ListView + \o \l State_Enabled \o Set if the list view is enabled. + + \endtable + + \sa drawPrimitive(), drawControl() +*/ + + +/*! + \fn QRect QStyle::subControlRect(ComplexControl control, + const QStyleOptionComplex *option, SubControl subControl, + const QWidget *widget) const = 0 + + Returns the rectangle containing the specified \a subControl of + the given complex \a control (with the style specified by \a + option). The rectangle is defined in screen coordinates. + + The \a option argument is a pointer to QStyleOptionComplex or + one of its subclasses, and can be cast to the appropriate type + using the qstyleoption_cast() function. See drawComplexControl() + for details. The \a widget is optional and can contain additional + information for the function. + + \sa drawComplexControl() +*/ + +/*! + \fn QStyle::SubControl QStyle::hitTestComplexControl(ComplexControl control, + const QStyleOptionComplex *option, const QPoint &position, + const QWidget *widget) const = 0 + + Returns the sub control at the given \a position in the given + complex \a control (with the style options specified by \a + option). + + Note that the \a position is expressed in screen coordinates. + + The \a option argument is a pointer to a QStyleOptionComplex + object (or one of its subclasses). The object can be cast to the + appropriate type using the qstyleoption_cast() function. See + drawComplexControl() for details. The \a widget argument is + optional and can contain additional information for the function. + + \sa drawComplexControl(), subControlRect() +*/ + +/*! + \enum QStyle::PixelMetric + + This enum describes the various available pixel metrics. A pixel + metric is a style dependent size represented by a single pixel + value. + + \value PM_ButtonMargin Amount of whitespace between push button + labels and the frame. + \value PM_DockWidgetTitleBarButtonMargin Amount of whitespace between dock widget's + title bar button labels and the frame. + \value PM_ButtonDefaultIndicator Width of the default-button indicator frame. + \value PM_MenuButtonIndicator Width of the menu button indicator + proportional to the widget height. + \value PM_ButtonShiftHorizontal Horizontal contents shift of a + button when the button is down. + \value PM_ButtonShiftVertical Vertical contents shift of a button when the + button is down. + + \value PM_DefaultFrameWidth Default frame width (usually 2). + \value PM_SpinBoxFrameWidth Frame width of a spin box, defaults to PM_DefaultFrameWidth. + \value PM_ComboBoxFrameWidth Frame width of a combo box, defaults to PM_DefaultFrameWidth. + + \value PM_MDIFrameWidth Obsolete. Use PM_MdiSubWindowFrameWidth instead. + \value PM_MdiSubWindowFrameWidth Frame width of an MDI window. + \value PM_MDIMinimizedWidth Obsolete. Use PM_MdiSubWindowMinimizedWidth instead. + \value PM_MdiSubWindowMinimizedWidth Width of a minimized MDI window. + + \value PM_LayoutLeftMargin Default \l{QLayout::setContentsMargins()}{left margin} for a + QLayout. + \value PM_LayoutTopMargin Default \l{QLayout::setContentsMargins()}{top margin} for a QLayout. + \value PM_LayoutRightMargin Default \l{QLayout::setContentsMargins()}{right margin} for a + QLayout. + \value PM_LayoutBottomMargin Default \l{QLayout::setContentsMargins()}{bottom margin} for a + QLayout. + \value PM_LayoutHorizontalSpacing Default \l{QLayout::spacing}{horizontal spacing} for a + QLayout. + \value PM_LayoutVerticalSpacing Default \l{QLayout::spacing}{vertical spacing} for a QLayout. + + \value PM_MaximumDragDistance The maximum allowed distance between + the mouse and a scrollbar when dragging. Exceeding the specified + distance will cause the slider to jump back to the original + position; a value of -1 disables this behavior. + + \value PM_ScrollBarExtent Width of a vertical scroll bar and the + height of a horizontal scroll bar. + \value PM_ScrollBarSliderMin The minimum height of a vertical + scroll bar's slider and the minimum width of a horizontal + scroll bar's slider. + + \value PM_SliderThickness Total slider thickness. + \value PM_SliderControlThickness Thickness of the slider handle. + \value PM_SliderLength Length of the slider. + \value PM_SliderTickmarkOffset The offset between the tickmarks + and the slider. + \value PM_SliderSpaceAvailable The available space for the slider to move. + + \value PM_DockWidgetSeparatorExtent Width of a separator in a + horizontal dock window and the height of a separator in a + vertical dock window. + \value PM_DockWidgetHandleExtent Width of the handle in a + horizontal dock window and the height of the handle in a + vertical dock window. + \value PM_DockWidgetFrameWidth Frame width of a dock window. + \value PM_DockWidgetTitleMargin Margin of the dock window title. + + \value PM_MenuBarPanelWidth Frame width of a menu bar, defaults to PM_DefaultFrameWidth. + \value PM_MenuBarItemSpacing Spacing between menu bar items. + \value PM_MenuBarHMargin Spacing between menu bar items and left/right of bar. + \value PM_MenuBarVMargin Spacing between menu bar items and top/bottom of bar. + + \value PM_ToolBarFrameWidth Width of the frame around toolbars. + \value PM_ToolBarHandleExtent Width of a toolbar handle in a + horizontal toolbar and the height of the handle in a vertical toolbar. + \value PM_ToolBarItemMargin Spacing between the toolbar frame and the items. + \value PM_ToolBarItemSpacing Spacing between toolbar items. + \value PM_ToolBarSeparatorExtent Width of a toolbar separator in a + horizontal toolbar and the height of a separator in a vertical toolbar. + \value PM_ToolBarExtensionExtent Width of a toolbar extension + button in a horizontal toolbar and the height of the button in a + vertical toolbar. + + \value PM_TabBarTabOverlap Number of pixels the tabs should overlap. + (Currently only used in styles, not inside of QTabBar) + \value PM_TabBarTabHSpace Extra space added to the tab width. + \value PM_TabBarTabVSpace Extra space added to the tab height. + \value PM_TabBarBaseHeight Height of the area between the tab bar + and the tab pages. + \value PM_TabBarBaseOverlap Number of pixels the tab bar overlaps + the tab bar base. + \value PM_TabBarScrollButtonWidth + \value PM_TabBarTabShiftHorizontal Horizontal pixel shift when a + tab is selected. + \value PM_TabBarTabShiftVertical Vertical pixel shift when a + tab is selected. + + \value PM_ProgressBarChunkWidth Width of a chunk in a progress bar indicator. + + \value PM_SplitterWidth Width of a splitter. + + \value PM_TitleBarHeight Height of the title bar. + + \value PM_IndicatorWidth Width of a check box indicator. + \value PM_IndicatorHeight Height of a checkbox indicator. + \value PM_ExclusiveIndicatorWidth Width of a radio button indicator. + \value PM_ExclusiveIndicatorHeight Height of a radio button indicator. + + \value PM_MenuPanelWidth Border width (applied on all sides) for a QMenu. + \value PM_MenuHMargin Additional border (used on left and right) for a QMenu. + \value PM_MenuVMargin Additional border (used for bottom and top) for a QMenu. + \value PM_MenuScrollerHeight Height of the scroller area in a QMenu. + \value PM_MenuTearoffHeight Height of a tear off area in a QMenu. + \value PM_MenuDesktopFrameWidth The frame width for the menu on the desktop. + + \value PM_CheckListButtonSize Area (width/height) of the + checkbox/radio button in a Q3CheckListItem. + \value PM_CheckListControllerSize Area (width/height) of the + controller in a Q3CheckListItem. + + \omitvalue PM_DialogButtonsSeparator + \omitvalue PM_DialogButtonsButtonWidth + \omitvalue PM_DialogButtonsButtonHeight + + \value PM_HeaderMarkSize The size of the sort indicator in a header. + \value PM_HeaderGripMargin The size of the resize grip in a header. + \value PM_HeaderMargin The size of the margin between the sort indicator and the text. + \value PM_SpinBoxSliderHeight The height of the optional spin box slider. + + \value PM_ToolBarIconSize Default tool bar icon size + \value PM_SmallIconSize Default small icon size + \value PM_LargeIconSize Default large icon size + + \value PM_FocusFrameHMargin Horizontal margin that the focus frame will outset the widget by. + \value PM_FocusFrameVMargin Vertical margin that the focus frame will outset the widget by. + \value PM_IconViewIconSize The default size for icons in an icon view. + \value PM_ListViewIconSize The default size for icons in a list view. + + \value PM_ToolTipLabelFrameWidth The frame width for a tool tip label. + \value PM_CheckBoxLabelSpacing The spacing between a check box indicator and its label. + \value PM_RadioButtonLabelSpacing The spacing between a radio button indicator and its label. + \value PM_TabBarIconSize The default icon size for a tab bar. + \value PM_SizeGripSize The size of a size grip. + \value PM_MessageBoxIconSize The size of the standard icons in a message box + \value PM_ButtonIconSize The default size of button icons + \value PM_TextCursorWidth The width of the cursor in a line edit or text edit + \value PM_TabBar_ScrollButtonOverlap The distance between the left and right buttons in a tab bar. + + \value PM_TabCloseIndicatorWidth The default width of a close button on a tab in a tab bar. + \value PM_TabCloseIndicatorHeight The default height of a close button on a tab in a tab bar. + + \value PM_CustomBase Base value for custom pixel metrics. Custom + values must be greater than this value. + + The following values are obsolete: + + \value PM_DefaultTopLevelMargin Use PM_LayoutLeftMargin, + PM_LayoutTopMargin, + PM_LayoutRightMargin, and + PM_LayoutBottomMargin instead. + \value PM_DefaultChildMargin Use PM_LayoutLeftMargin, + PM_LayoutTopMargin, + PM_LayoutRightMargin, and + PM_LayoutBottomMargin instead. + \value PM_DefaultLayoutSpacing Use PM_LayoutHorizontalSpacing + and PM_LayoutVerticalSpacing + instead. + + \value PM_ScrollView_ScrollBarSpacing Distance between frame and scrollbar + with SH_ScrollView_FrameOnlyAroundContents set. + \value PM_SubMenuOverlap The horizontal overlap between a submenu and its parent. + + + \sa pixelMetric() +*/ + +/*! + \fn int QStyle::pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const; + + Returns the value of the given pixel \a metric. + + The specified \a option and \a widget can be used for calculating + the metric. In general, the \a widget argument is not used. The \a + option can be cast to the appropriate type using the + qstyleoption_cast() function. Note that the \a option may be zero + even for PixelMetrics that can make use of it. See the table below + for the appropriate \a option casts: + + \table + \header \o Pixel Metric \o QStyleOption Subclass + \row \o \l PM_SliderControlThickness \o \l QStyleOptionSlider + \row \o \l PM_SliderLength \o \l QStyleOptionSlider + \row \o \l PM_SliderTickmarkOffset \o \l QStyleOptionSlider + \row \o \l PM_SliderSpaceAvailable \o \l QStyleOptionSlider + \row \o \l PM_ScrollBarExtent \o \l QStyleOptionSlider + \row \o \l PM_TabBarTabOverlap \o \l QStyleOptionTab + \row \o \l PM_TabBarTabHSpace \o \l QStyleOptionTab + \row \o \l PM_TabBarTabVSpace \o \l QStyleOptionTab + \row \o \l PM_TabBarBaseHeight \o \l QStyleOptionTab + \row \o \l PM_TabBarBaseOverlap \o \l QStyleOptionTab + \endtable + + Some pixel metrics are called from widgets and some are only called + internally by the style. If the metric is not called by a widget, it is the + discretion of the style author to make use of it. For some styles, this + may not be appropriate. +*/ + +/*! + \enum QStyle::ContentsType + + This enum describes the available contents types. These are used to + calculate sizes for the contents of various widgets. + + \value CT_CheckBox A check box, like QCheckBox. + \value CT_ComboBox A combo box, like QComboBox. + \omitvalue CT_DialogButtons + \value CT_Q3DockWindow A Q3DockWindow. + \value CT_HeaderSection A header section, like QHeader. + \value CT_LineEdit A line edit, like QLineEdit. + \value CT_Menu A menu, like QMenu. + \value CT_Q3Header A Qt 3 header section, like Q3Header. + \value CT_MenuBar A menu bar, like QMenuBar. + \value CT_MenuBarItem A menu bar item, like the buttons in a QMenuBar. + \value CT_MenuItem A menu item, like QMenuItem. + \value CT_ProgressBar A progress bar, like QProgressBar. + \value CT_PushButton A push button, like QPushButton. + \value CT_RadioButton A radio button, like QRadioButton. + \value CT_SizeGrip A size grip, like QSizeGrip. + \value CT_Slider A slider, like QSlider. + \value CT_ScrollBar A scroll bar, like QScrollBar. + \value CT_SpinBox A spin box, like QSpinBox. + \value CT_Splitter A splitter, like QSplitter. + \value CT_TabBarTab A tab on a tab bar, like QTabBar. + \value CT_TabWidget A tab widget, like QTabWidget. + \value CT_ToolButton A tool button, like QToolButton. + \value CT_GroupBox A group box, like QGroupBox. + \value CT_ItemViewItem An item inside an item view. + + \value CT_CustomBase Base value for custom contents types. + Custom values must be greater than this value. + + \value CT_MdiControls The minimize, normal, and close button + in the menu bar for a maximized MDI + subwindow. + + \sa sizeFromContents() +*/ + +/*! + \fn QSize QStyle::sizeFromContents(ContentsType type, const QStyleOption *option, \ + const QSize &contentsSize, const QWidget *widget) const + + Returns the size of the element described by the specified + \a option and \a type, based on the provided \a contentsSize. + + The \a option argument is a pointer to a QStyleOption or one of + its subclasses. The \a option can be cast to the appropriate type + using the qstyleoption_cast() function. The \a widget is an + optional argument and can contain extra information used for + calculating the size. + + See the table below for the appropriate \a option casts: + + \table + \header \o Contents Type \o QStyleOption Subclass + \row \o \l CT_PushButton \o \l QStyleOptionButton + \row \o \l CT_CheckBox \o \l QStyleOptionButton + \row \o \l CT_RadioButton \o \l QStyleOptionButton + \row \o \l CT_ToolButton \o \l QStyleOptionToolButton + \row \o \l CT_ComboBox \o \l QStyleOptionComboBox + \row \o \l CT_Splitter \o \l QStyleOption + \row \o \l CT_Q3DockWindow \o \l QStyleOptionQ3DockWindow + \row \o \l CT_ProgressBar \o \l QStyleOptionProgressBar + \row \o \l CT_MenuItem \o \l QStyleOptionMenuItem + \endtable + + \sa ContentsType QStyleOption +*/ + +/*! + \enum QStyle::RequestSoftwareInputPanel + + This enum describes under what circumstances a software input panel will be + requested by input capable widgets. + + \value RSIP_OnMouseClickAndAlreadyFocused Requests an input panel if the user + clicks on the widget, but only if it is already focused. + \value RSIP_OnMouseClick Requests an input panel if the user clicks on the + widget. + + \sa QEvent::RequestSoftwareInputPanel, QInputContext +*/ + +/*! + \enum QStyle::StyleHint + + This enum describes the available style hints. A style hint is a general look + and/or feel hint. + + \value SH_EtchDisabledText Disabled text is "etched" as it is on Windows. + + \value SH_DitherDisabledText Disabled text is dithered as it is on Motif. + + \value SH_GUIStyle The GUI style to use. + + \value SH_ScrollBar_ContextMenu Whether or not a scroll bar has a context menu. + + \value SH_ScrollBar_MiddleClickAbsolutePosition A boolean value. + If true, middle clicking on a scroll bar causes the slider to + jump to that position. If false, middle clicking is + ignored. + + \value SH_ScrollBar_LeftClickAbsolutePosition A boolean value. + If true, left clicking on a scroll bar causes the slider to + jump to that position. If false, left clicking will + behave as appropriate for each control. + + \value SH_ScrollBar_ScrollWhenPointerLeavesControl A boolean + value. If true, when clicking a scroll bar SubControl, holding + the mouse button down and moving the pointer outside the + SubControl, the scroll bar continues to scroll. If false, the + scollbar stops scrolling when the pointer leaves the + SubControl. + + \value SH_ScrollBar_RollBetweenButtons A boolean value. + If true, when clicking a scroll bar button (SC_ScrollBarAddLine or + SC_ScrollBarSubLine) and dragging over to the opposite button (rolling) + will press the new button and release the old one. When it is false, the + original button is released and nothing happens (like a push button). + + \value SH_TabBar_Alignment The alignment for tabs in a + QTabWidget. Possible values are Qt::AlignLeft, + Qt::AlignCenter and Qt::AlignRight. + + \value SH_Header_ArrowAlignment The placement of the sorting + indicator may appear in list or table headers. Possible values + are Qt::Left or Qt::Right. + + \value SH_Slider_SnapToValue Sliders snap to values while moving, + as they do on Windows. + + \value SH_Slider_SloppyKeyEvents Key presses handled in a sloppy + manner, i.e., left on a vertical slider subtracts a line. + + \value SH_ProgressDialog_CenterCancelButton Center button on + progress dialogs, like Motif, otherwise right aligned. + + \value SH_ProgressDialog_TextLabelAlignment The alignment for text + labels in progress dialogs; Qt::AlignCenter on Windows, + Qt::AlignVCenter otherwise. + + \value SH_PrintDialog_RightAlignButtons Right align buttons in + the print dialog, as done on Windows. + + \value SH_MainWindow_SpaceBelowMenuBar One or two pixel space between + the menu bar and the dockarea, as done on Windows. + + \value SH_FontDialog_SelectAssociatedText Select the text in the + line edit, or when selecting an item from the listbox, or when + the line edit receives focus, as done on Windows. + + \value SH_Menu_KeyboardSearch Typing causes a menu to be search + for relevant items, otherwise only mnemnonic is considered. + + \value SH_Menu_AllowActiveAndDisabled Allows disabled menu + items to be active. + + \value SH_Menu_SpaceActivatesItem Pressing the space bar activates + the item, as done on Motif. + + \value SH_Menu_SubMenuPopupDelay The number of milliseconds + to wait before opening a submenu (256 on Windows, 96 on Motif). + + \value SH_Menu_Scrollable Whether popup menus must support scrolling. + + \value SH_Menu_SloppySubMenus Whether popupmenu's must support + sloppy submenu; as implemented on Mac OS. + + \value SH_ScrollView_FrameOnlyAroundContents Whether scrollviews + draw their frame only around contents (like Motif), or around + contents, scroll bars and corner widgets (like Windows). + + \value SH_MenuBar_AltKeyNavigation Menu bars items are navigable + by pressing Alt, followed by using the arrow keys to select + the desired item. + + \value SH_ComboBox_ListMouseTracking Mouse tracking in combobox + drop-down lists. + + \value SH_Menu_MouseTracking Mouse tracking in popup menus. + + \value SH_MenuBar_MouseTracking Mouse tracking in menu bars. + + \value SH_Menu_FillScreenWithScroll Whether scrolling popups + should fill the screen as they are scrolled. + + \value SH_Menu_SelectionWrap Whether popups should allow the selections + to wrap, that is when selection should the next item be the first item. + + \value SH_ItemView_ChangeHighlightOnFocus Gray out selected items + when losing focus. + + \value SH_Widget_ShareActivation Turn on sharing activation with + floating modeless dialogs. + + \value SH_TabBar_SelectMouseType Which type of mouse event should + cause a tab to be selected. + + \value SH_Q3ListViewExpand_SelectMouseType Which type of mouse event should + cause a list view expansion to be selected. + + \value SH_TabBar_PreferNoArrows Whether a tab bar should suggest a size + to prevent scoll arrows. + + \value SH_ComboBox_Popup Allows popups as a combobox drop-down + menu. + + \value SH_Workspace_FillSpaceOnMaximize The workspace should + maximize the client area. + + \value SH_TitleBar_NoBorder The title bar has no border. + + \value SH_ScrollBar_StopMouseOverSlider Obsolete. Use + SH_Slider_StopMouseOverSlider instead. + + \value SH_Slider_StopMouseOverSlider Stops auto-repeat when + the slider reaches the mouse position. + + \value SH_BlinkCursorWhenTextSelected Whether cursor should blink + when text is selected. + + \value SH_RichText_FullWidthSelection Whether richtext selections + should extend to the full width of the document. + + \value SH_GroupBox_TextLabelVerticalAlignment How to vertically align a + group box's text label. + + \value SH_GroupBox_TextLabelColor How to paint a group box's text label. + + \value SH_DialogButtons_DefaultButton Which button gets the + default status in a dialog's button widget. + + \value SH_ToolBox_SelectedPageTitleBold Boldness of the selected + page title in a QToolBox. + + \value SH_LineEdit_PasswordCharacter The Unicode character to be + used for passwords. + + \value SH_Table_GridLineColor The RGB value of the grid for a table. + + \value SH_UnderlineShortcut Whether shortcuts are underlined. + + \value SH_SpellCheckUnderlineStyle A + QTextCharFormat::UnderlineStyle value that specifies the way + misspelled words should be underlined. + + \value SH_SpinBox_AnimateButton Animate a click when up or down is + pressed in a spin box. + \value SH_SpinBox_KeyPressAutoRepeatRate Auto-repeat interval for + spinbox key presses. + \value SH_SpinBox_ClickAutoRepeatRate Auto-repeat interval for + spinbox mouse clicks. + \value SH_SpinBox_ClickAutoRepeatThreshold Auto-repeat threshold for + spinbox mouse clicks. + \value SH_ToolTipLabel_Opacity An integer indicating the opacity for + the tip label, 0 is completely transparent, 255 is completely + opaque. + \value SH_DrawMenuBarSeparator Indicates whether or not the menu bar draws separators. + \value SH_TitleBar_ModifyNotification Indicates if the title bar should show + a '*' for windows that are modified. + + \value SH_Button_FocusPolicy The default focus policy for buttons. + + \value SH_CustomBase Base value for custom style hints. + Custom values must be greater than this value. + + \value SH_MenuBar_DismissOnSecondClick A boolean indicating if a menu in + the menu bar should be dismissed when it is clicked on a second time. (Example: + Clicking and releasing on the File Menu in a menu bar and then + immediately clicking on the File Menu again.) + + \value SH_MessageBox_UseBorderForButtonSpacing A boolean indicating what the to + use the border of the buttons (computed as half the button height) for the spacing + of the button in a message box. + + \value SH_MessageBox_CenterButtons A boolean indicating whether the buttons in the + message box should be centered or not (see QDialogButtonBox::setCentered()). + + \value SH_MessageBox_TextInteractionFlags A boolean indicating if + the text in a message box should allow user interfactions (e.g. + selection) or not. + + \value SH_TitleBar_AutoRaise A boolean indicating whether + controls on a title bar ought to update when the mouse is over them. + + \value SH_ToolButton_PopupDelay An int indicating the popup delay in milliseconds + for menus attached to tool buttons. + + \value SH_FocusFrame_Mask The mask of the focus frame. + + \value SH_RubberBand_Mask The mask of the rubber band. + + \value SH_WindowFrame_Mask The mask of the window frame. + + \value SH_SpinControls_DisableOnBounds Determines if the spin controls will shown + as disabled when reaching the spin range boundary. + + \value SH_Dial_BackgroundRole Defines the style's preferred + background role (as QPalette::ColorRole) for a dial widget. + + \value SH_ScrollBar_BackgroundMode The background mode for a scroll bar. + + \value SH_ComboBox_LayoutDirection The layout direction for the + combo box. By default it should be the same as indicated by the + QStyleOption::direction variable. + + \value SH_ItemView_EllipsisLocation The location where ellipses should be + added for item text that is too long to fit in an view item. + + \value SH_ItemView_ShowDecorationSelected When an item in an item + view is selected, also highlight the branch or other decoration. + + \value SH_ItemView_ActivateItemOnSingleClick Emit the activated signal + when the user single clicks on an item in an item in an item view. + Otherwise the signal is emitted when the user double clicks on an item. + + \value SH_Slider_AbsoluteSetButtons Which mouse buttons cause a slider + to set the value to the position clicked on. + + \value SH_Slider_PageSetButtons Which mouse buttons cause a slider + to page step the value. + + \value SH_TabBar_ElideMode The default eliding style for a tab bar. + + \value SH_DialogButtonLayout Controls how buttons are laid out in a QDialogButtonBox, returns a QDialogButtonBox::ButtonLayout enum. + + \value SH_WizardStyle Controls the look and feel of a QWizard. Returns a QWizard::WizardStyle enum. + + \value SH_FormLayoutWrapPolicy Provides a default for how rows are wrapped in a QFormLayout. Returns a QFormLayout::RowWrapPolicy enum. + \value SH_FormLayoutFieldGrowthPolicy Provides a default for how fields can grow in a QFormLayout. Returns a QFormLayout::FieldGrowthPolicy enum. + \value SH_FormLayoutFormAlignment Provides a default for how a QFormLayout aligns its contents within the available space. Returns a Qt::Alignment enum. + \value SH_FormLayoutLabelAlignment Provides a default for how a QFormLayout aligns labels within the available space. Returns a Qt::Alignment enum. + + \value SH_ItemView_ArrowKeysNavigateIntoChildren Controls whether the tree view will select the first child when it is exapanded and the right arrow key is pressed. + \value SH_ComboBox_PopupFrameStyle The frame style used when drawing a combobox popup menu. + + \value SH_DialogButtonBox_ButtonsHaveIcons Indicates whether or not StandardButtons in QDialogButtonBox should have icons or not. + \value SH_ItemView_MovementWithoutUpdatingSelection The item view is able to indicate a current item without changing the selection. + \value SH_ToolTip_Mask The mask of a tool tip. + + \value SH_FocusFrame_AboveWidget The FocusFrame is stacked above the widget that it is "focusing on". + + \value SH_TextControl_FocusIndicatorTextCharFormat Specifies the text format used to highlight focused anchors in rich text + documents displayed for example in QTextBrowser. The format has to be a QTextCharFormat returned in the variant of the + QStyleHintReturnVariant return value. The QTextFormat::OutlinePen property is used for the outline and QTextFormat::BackgroundBrush + for the background of the highlighted area. + + \value SH_Menu_FlashTriggeredItem Flash triggered item. + \value SH_Menu_FadeOutOnHide Fade out the menu instead of hiding it immediately. + + \value SH_TabWidget_DefaultTabPosition Default position of the tab bar in a tab widget. + + \value SH_ToolBar_Movable Determines if the tool bar is movable by default. + + \value SH_ItemView_PaintAlternatingRowColorsForEmptyArea Whether QTreeView paints alternating row colors for the area that does not have any items. + + \value SH_Menu_Mask The mask for a popup menu. + + \value SH_ItemView_DrawDelegateFrame Determines if there should be a frame for a delegate widget. + + \value SH_TabBar_CloseButtonPosition Determines the position of the close button on a tab in a tab bar. + + \value SH_DockWidget_ButtonsHaveFrame Determines if dockwidget buttons should have frames. Default is true. + + \value SH_ToolButtonStyle Determines the default system style for tool buttons that uses Qt::ToolButtonFollowStyle. + + \value SH_RequestSoftwareInputPanel Determines when a software input panel should + be requested by input widgets. Returns an enum of type QStyle::RequestSoftwareInputPanel. + + \omitvalue SH_UnderlineAccelerator + + \sa styleHint() +*/ + +/*! + \fn int QStyle::styleHint(StyleHint hint, const QStyleOption *option, \ + const QWidget *widget, QStyleHintReturn *returnData) const + + Returns an integer representing the specified style \a hint for + the given \a widget described by the provided style \a option. + + \a returnData is used when the querying widget needs more detailed data than + the integer that styleHint() returns. See the QStyleHintReturn class + description for details. +*/ + +/*! + \enum QStyle::StandardPixmap + + This enum describes the available standard pixmaps. A standard pixmap is a pixmap that + can follow some existing GUI style or guideline. + + \value SP_TitleBarMinButton Minimize button on title bars (e.g., + in QMdiSubWindow). + \value SP_TitleBarMenuButton Menu button on a title bar. + \value SP_TitleBarMaxButton Maximize button on title bars. + \value SP_TitleBarCloseButton Close button on title bars. + \value SP_TitleBarNormalButton Normal (restore) button on title bars. + \value SP_TitleBarShadeButton Shade button on title bars. + \value SP_TitleBarUnshadeButton Unshade button on title bars. + \value SP_TitleBarContextHelpButton The Context help button on title bars. + \value SP_MessageBoxInformation The "information" icon. + \value SP_MessageBoxWarning The "warning" icon. + \value SP_MessageBoxCritical The "critical" icon. + \value SP_MessageBoxQuestion The "question" icon. + \value SP_DesktopIcon The "desktop" icon. + \value SP_TrashIcon The "trash" icon. + \value SP_ComputerIcon The "My computer" icon. + \value SP_DriveFDIcon The floppy icon. + \value SP_DriveHDIcon The harddrive icon. + \value SP_DriveCDIcon The CD icon. + \value SP_DriveDVDIcon The DVD icon. + \value SP_DriveNetIcon The network icon. + \value SP_DirHomeIcon The home directory icon. + \value SP_DirOpenIcon The open directory icon. + \value SP_DirClosedIcon The closed directory icon. + \value SP_DirIcon The directory icon. + \value SP_DirLinkIcon The link to directory icon. + \value SP_FileIcon The file icon. + \value SP_FileLinkIcon The link to file icon. + \value SP_FileDialogStart The "start" icon in a file dialog. + \value SP_FileDialogEnd The "end" icon in a file dialog. + \value SP_FileDialogToParent The "parent directory" icon in a file dialog. + \value SP_FileDialogNewFolder The "create new folder" icon in a file dialog. + \value SP_FileDialogDetailedView The detailed view icon in a file dialog. + \value SP_FileDialogInfoView The file info icon in a file dialog. + \value SP_FileDialogContentsView The contents view icon in a file dialog. + \value SP_FileDialogListView The list view icon in a file dialog. + \value SP_FileDialogBack The back arrow in a file dialog. + \value SP_DockWidgetCloseButton Close button on dock windows (see also QDockWidget). + \value SP_ToolBarHorizontalExtensionButton Extension button for horizontal toolbars. + \value SP_ToolBarVerticalExtensionButton Extension button for vertical toolbars. + \value SP_DialogOkButton Icon for a standard OK button in a QDialogButtonBox. + \value SP_DialogCancelButton Icon for a standard Cancel button in a QDialogButtonBox. + \value SP_DialogHelpButton Icon for a standard Help button in a QDialogButtonBox. + \value SP_DialogOpenButton Icon for a standard Open button in a QDialogButtonBox. + \value SP_DialogSaveButton Icon for a standard Save button in a QDialogButtonBox. + \value SP_DialogCloseButton Icon for a standard Close button in a QDialogButtonBox. + \value SP_DialogApplyButton Icon for a standard Apply button in a QDialogButtonBox. + \value SP_DialogResetButton Icon for a standard Reset button in a QDialogButtonBox. + \value SP_DialogDiscardButton Icon for a standard Discard button in a QDialogButtonBox. + \value SP_DialogYesButton Icon for a standard Yes button in a QDialogButtonBox. + \value SP_DialogNoButton Icon for a standard No button in a QDialogButtonBox. + \value SP_ArrowUp Icon arrow pointing up. + \value SP_ArrowDown Icon arrow pointing down. + \value SP_ArrowLeft Icon arrow pointing left. + \value SP_ArrowRight Icon arrow pointing right. + \value SP_ArrowBack Equivalent to SP_ArrowLeft when the current layout direction is Qt::LeftToRight, otherwise SP_ArrowRight. + \value SP_ArrowForward Equivalent to SP_ArrowRight when the current layout direction is Qt::LeftToRight, otherwise SP_ArrowLeft. + \value SP_CommandLink Icon used to indicate a Vista style command link glyph. + \value SP_VistaShield Icon used to indicate UAC prompts on Windows Vista. This will return a null pixmap or icon on all other platforms. + \value SP_BrowserReload Icon indicating that the current page should be reloaded. + \value SP_BrowserStop Icon indicating that the page loading should stop. + \value SP_MediaPlay Icon indicating that media should begin playback. + \value SP_MediaStop Icon indicating that media should stop playback. + \value SP_MediaPause Icon indicating that media should pause playback. + \value SP_MediaSkipForward Icon indicating that media should skip forward. + \value SP_MediaSkipBackward Icon indicating that media should skip backward. + \value SP_MediaSeekForward Icon indicating that media should seek forward. + \value SP_MediaSeekBackward Icon indicating that media should seek backward. + \value SP_MediaVolume Icon indicating a volume control. + \value SP_MediaVolumeMuted Icon indicating a muted volume control. + \value SP_CustomBase Base value for custom standard pixmaps; + custom values must be greater than this value. + + \sa standardIcon() +*/ + +/*! + \fn QPixmap QStyle::generatedIconPixmap(QIcon::Mode iconMode, + const QPixmap &pixmap, const QStyleOption *option) const + + Returns a copy of the given \a pixmap, styled to conform to the + specified \a iconMode and taking into account the palette + specified by \a option. + + The \a option parameter can pass extra information, but + it must contain a palette. + + Note that not all pixmaps will conform, in which case the returned + pixmap is a plain copy. + + \sa QIcon +*/ + +/*! + \fn QPixmap QStyle::standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option, \ + const QWidget *widget) const + + \obsolete + Returns a pixmap for the given \a standardPixmap. + + A standard pixmap is a pixmap that can follow some existing GUI + style or guideline. The \a option argument can be used to pass + extra information required when defining the appropriate + pixmap. The \a widget argument is optional and can also be used to + aid the determination of the pixmap. + + Developers calling standardPixmap() should instead call standardIcon() + Developers who re-implemented standardPixmap() should instead re-implement + the slot standardIconImplementation(). + + \sa standardIcon() +*/ + + +/*! + \fn QRect QStyle::visualRect(Qt::LayoutDirection direction, const QRect &boundingRectangle, const QRect &logicalRectangle) + + Returns the given \a logicalRectangle converted to screen + coordinates based on the specified \a direction. The \a + boundingRectangle is used when performing the translation. + + This function is provided to support right-to-left desktops, and + is typically used in implementations of the subControlRect() + function. + + \sa QWidget::layoutDirection +*/ +QRect QStyle::visualRect(Qt::LayoutDirection direction, const QRect &boundingRect, const QRect &logicalRect) +{ + if (direction == Qt::LeftToRight) + return logicalRect; + QRect rect = logicalRect; + rect.translate(2 * (boundingRect.right() - logicalRect.right()) + + logicalRect.width() - boundingRect.width(), 0); + return rect; +} + +/*! + \fn QPoint QStyle::visualPos(Qt::LayoutDirection direction, const QRect &boundingRectangle, const QPoint &logicalPosition) + + Returns the given \a logicalPosition converted to screen + coordinates based on the specified \a direction. The \a + boundingRectangle is used when performing the translation. + + \sa QWidget::layoutDirection +*/ +QPoint QStyle::visualPos(Qt::LayoutDirection direction, const QRect &boundingRect, const QPoint &logicalPos) +{ + if (direction == Qt::LeftToRight) + return logicalPos; + return QPoint(boundingRect.right() - logicalPos.x(), logicalPos.y()); +} + +/*! + Returns a new rectangle of the specified \a size that is aligned to the given \a + rectangle according to the specified \a alignment and \a direction. + */ +QRect QStyle::alignedRect(Qt::LayoutDirection direction, Qt::Alignment alignment, const QSize &size, const QRect &rectangle) +{ + alignment = visualAlignment(direction, alignment); + int x = rectangle.x(); + int y = rectangle.y(); + int w = size.width(); + int h = size.height(); + if ((alignment & Qt::AlignVCenter) == Qt::AlignVCenter) + y += rectangle.size().height()/2 - h/2; + else if ((alignment & Qt::AlignBottom) == Qt::AlignBottom) + y += rectangle.size().height() - h; + if ((alignment & Qt::AlignRight) == Qt::AlignRight) + x += rectangle.size().width() - w; + else if ((alignment & Qt::AlignHCenter) == Qt::AlignHCenter) + x += rectangle.size().width()/2 - w/2; + return QRect(x, y, w, h); +} + +/*! + Transforms an \a alignment of Qt::AlignLeft or Qt::AlignRight + without Qt::AlignAbsolute into Qt::AlignLeft or Qt::AlignRight with + Qt::AlignAbsolute according to the layout \a direction. The other + alignment flags are left untouched. + + If no horizontal alignment was specified, the function returns the + default alignment for the given layout \a direction. + + QWidget::layoutDirection +*/ +Qt::Alignment QStyle::visualAlignment(Qt::LayoutDirection direction, Qt::Alignment alignment) +{ + return QGuiApplicationPrivate::visualAlignment(direction, alignment); +} + +/*! + Converts the given \a logicalValue to a pixel position. The \a min + parameter maps to 0, \a max maps to \a span and other values are + distributed evenly in-between. + + This function can handle the entire integer range without + overflow, providing that \a span is less than 4096. + + By default, this function assumes that the maximum value is on the + right for horizontal items and on the bottom for vertical items. + Set the \a upsideDown parameter to true to reverse this behavior. + + \sa sliderValueFromPosition() +*/ + +int QStyle::sliderPositionFromValue(int min, int max, int logicalValue, int span, bool upsideDown) +{ + if (span <= 0 || logicalValue < min || max <= min) + return 0; + if (logicalValue > max) + return upsideDown ? span : min; + + uint range = max - min; + uint p = upsideDown ? max - logicalValue : logicalValue - min; + + if (range > (uint)INT_MAX/4096) { + double dpos = (double(p))/(double(range)/span); + return int(dpos); + } else if (range > (uint)span) { + return (2 * p * span + range) / (2*range); + } else { + uint div = span / range; + uint mod = span % range; + return p * div + (2 * p * mod + range) / (2 * range); + } + // equiv. to (p * span) / range + 0.5 + // no overflow because of this implicit assumption: + // span <= 4096 +} + +/*! + \fn int QStyle::sliderValueFromPosition(int min, int max, int position, int span, bool upsideDown) + + Converts the given pixel \a position to a logical value. 0 maps to + the \a min parameter, \a span maps to \a max and other values are + distributed evenly in-between. + + This function can handle the entire integer range without + overflow. + + By default, this function assumes that the maximum value is on the + right for horizontal items and on the bottom for vertical + items. Set the \a upsideDown parameter to true to reverse this + behavior. + + \sa sliderPositionFromValue() +*/ + +int QStyle::sliderValueFromPosition(int min, int max, int pos, int span, bool upsideDown) +{ + if (span <= 0 || pos <= 0) + return upsideDown ? max : min; + if (pos >= span) + return upsideDown ? min : max; + + uint range = max - min; + + if ((uint)span > range) { + int tmp = (2 * pos * range + span) / (2 * span); + return upsideDown ? max - tmp : tmp + min; + } else { + uint div = range / span; + uint mod = range % span; + int tmp = pos * div + (2 * pos * mod + span) / (2 * span); + return upsideDown ? max - tmp : tmp + min; + } + // equiv. to min + (pos*range)/span + 0.5 + // no overflow because of this implicit assumption: + // pos <= span < sqrt(INT_MAX+0.0625)+0.25 ~ sqrt(INT_MAX) +} + +/*! + Returns the style's standard palette. + + Note that on systems that support system colors, the style's + standard palette is not used. In particular, the Windows XP, + Vista, and Mac styles do not use the standard palette, but make + use of native theme engines. With these styles, you should not set + the palette with QApplication::setStandardPalette(). + + */ +QPalette QStyle::standardPalette() const +{ +#ifdef Q_WS_X11 + QColor background; + if (QX11Info::appDepth() > 8) + background = QColor(0xd4, 0xd0, 0xc8); // win 2000 grey + else + background = QColor(192, 192, 192); +#else + QColor background(0xd4, 0xd0, 0xc8); // win 2000 grey +#endif + QColor light(background.lighter()); + QColor dark(background.darker()); + QColor mid(Qt::gray); + QPalette palette(Qt::black, background, light, dark, mid, Qt::black, Qt::white); + palette.setBrush(QPalette::Disabled, QPalette::WindowText, dark); + palette.setBrush(QPalette::Disabled, QPalette::Text, dark); + palette.setBrush(QPalette::Disabled, QPalette::ButtonText, dark); + palette.setBrush(QPalette::Disabled, QPalette::Base, background); + return palette; +} + +/*! + \since 4.1 + + Returns an icon for the given \a standardIcon. + + The \a standardIcon is a standard pixmap which can follow some + existing GUI style or guideline. The \a option argument can be + used to pass extra information required when defining the + appropriate icon. The \a widget argument is optional and can also + be used to aid the determination of the icon. + + \warning Because of binary compatibility constraints, this + function is not virtual. If you want to provide your own icons in + a QStyle subclass, reimplement the standardIconImplementation() + slot in your subclass instead. The standardIcon() function will + dynamically detect the slot and call it. + + \sa standardIconImplementation() +*/ +QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option, + const QWidget *widget) const +{ + QIcon result; + // ### Qt 4.1: invokeMethod should accept const functions, to avoid this dirty cast + QMetaObject::invokeMethod(const_cast<QStyle*>(this), + "standardIconImplementation", Qt::DirectConnection, + Q_RETURN_ARG(QIcon, result), + Q_ARG(StandardPixmap, standardIcon), + Q_ARG(const QStyleOption*, option), + Q_ARG(const QWidget*, widget)); + return result; +} + +/*! + \since 4.1 + + Returns an icon for the given \a standardIcon. + + Reimplement this slot to provide your own icons in a QStyle + subclass; because of binary compatibility constraints, the + standardIcon() function (introduced in Qt 4.1) is not + virtual. Instead, standardIcon() will dynamically detect and call + \e this slot. + + The \a standardIcon is a standard pixmap which can follow some + existing GUI style or guideline. The \a option argument can be + used to pass extra information required when defining the + appropriate icon. The \a widget argument is optional and can also + be used to aid the determination of the icon. + + \sa standardIcon() +*/ +QIcon QStyle::standardIconImplementation(StandardPixmap standardIcon, const QStyleOption *option, + const QWidget *widget) const +{ + return QIcon(standardPixmap(standardIcon, option, widget)); +} + +/*! + \since 4.3 + + Returns the spacing that should be used between \a control1 and + \a control2 in a layout. \a orientation specifies whether the + controls are laid out side by side or stacked vertically. The \a + option parameter can be used to pass extra information about the + parent widget. The \a widget parameter is optional and can also + be used if \a option is 0. + + This function is called by the layout system. It is used only if + PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a + negative value. + + For binary compatibility reasons, this function is not virtual. + If you want to specify custom layout spacings in a QStyle + subclass, implement a slot called layoutSpacingImplementation(). + QStyle will discover the slot at run-time (using Qt's + \l{meta-object system}) and direct all calls to layoutSpacing() + to layoutSpacingImplementation(). + + \sa combinedLayoutSpacing(), layoutSpacingImplementation() +*/ +int QStyle::layoutSpacing(QSizePolicy::ControlType control1, QSizePolicy::ControlType control2, + Qt::Orientation orientation, const QStyleOption *option, + const QWidget *widget) const +{ + Q_D(const QStyle); + if (d->layoutSpacingIndex == -1) { + d->layoutSpacingIndex = metaObject()->indexOfMethod( + "layoutSpacingImplementation(QSizePolicy::ControlType,QSizePolicy::ControlType," + "Qt::Orientation,const QStyleOption*,const QWidget*)" + ); + } + if (d->layoutSpacingIndex < 0) + return -1; + int result = -1; + void *param[] = {&result, &control1, &control2, &orientation, &option, &widget}; + + const_cast<QStyle *>(this)->qt_metacall(QMetaObject::InvokeMetaMethod, + d->layoutSpacingIndex, param); + return result; +} + +/*! + \since 4.3 + + Returns the spacing that should be used between \a controls1 and + \a controls2 in a layout. \a orientation specifies whether the + controls are laid out side by side or stacked vertically. The \a + option parameter can be used to pass extra information about the + parent widget. The \a widget parameter is optional and can also + be used if \a option is 0. + + \a controls1 and \a controls2 are OR-combination of zero or more + \l{QSizePolicy::ControlTypes}{control types}. + + This function is called by the layout system. It is used only if + PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a + negative value. + + \sa layoutSpacing(), layoutSpacingImplementation() +*/ +int QStyle::combinedLayoutSpacing(QSizePolicy::ControlTypes controls1, + QSizePolicy::ControlTypes controls2, Qt::Orientation orientation, + QStyleOption *option, QWidget *widget) const +{ + QSizePolicy::ControlType array1[MaxBits]; + QSizePolicy::ControlType array2[MaxBits]; + int count1 = unpackControlTypes(controls1, array1); + int count2 = unpackControlTypes(controls2, array2); + int result = -1; + + for (int i = 0; i < count1; ++i) { + for (int j = 0; j < count2; ++j) { + int spacing = layoutSpacing(array1[i], array2[j], orientation, option, widget); + result = qMax(spacing, result); + } + } + return result; +} + +/*! + \since 4.3 + + This slot is called by layoutSpacing() to determine the spacing + that should be used between \a control1 and \a control2 in a + layout. \a orientation specifies whether the controls are laid + out side by side or stacked vertically. The \a option parameter + can be used to pass extra information about the parent widget. + The \a widget parameter is optional and can also be used if \a + option is 0. + + If you want to provide custom layout spacings in a QStyle + subclass, implement a slot called layoutSpacingImplementation() + in your subclass. Be aware that this slot will only be called if + PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a + negative value. + + The default implementation returns -1. + + \sa layoutSpacing(), combinedLayoutSpacing() +*/ +int QStyle::layoutSpacingImplementation(QSizePolicy::ControlType /* control1 */, + QSizePolicy::ControlType /* control2 */, + Qt::Orientation /*orientation*/, + const QStyleOption * /* option */, + const QWidget * /* widget */) const +{ + return -1; +} + +QT_BEGIN_INCLUDE_NAMESPACE +#include <QDebug> +QT_END_INCLUDE_NAMESPACE + +#if !defined(QT_NO_DEBUG_STREAM) +QDebug operator<<(QDebug debug, QStyle::State state) +{ +#if !defined(QT_NO_DEBUG) + debug << "QStyle::State("; + + QStringList states; + if (state & QStyle::State_Active) states << QLatin1String("Active"); + if (state & QStyle::State_AutoRaise) states << QLatin1String("AutoRaise"); + if (state & QStyle::State_Bottom) states << QLatin1String("Bottom"); + if (state & QStyle::State_Children) states << QLatin1String("Children"); + if (state & QStyle::State_DownArrow) states << QLatin1String("DownArrow"); + if (state & QStyle::State_Editing) states << QLatin1String("Editing"); + if (state & QStyle::State_Enabled) states << QLatin1String("Enabled"); + if (state & QStyle::State_FocusAtBorder) states << QLatin1String("FocusAtBorder"); + if (state & QStyle::State_HasFocus) states << QLatin1String("HasFocus"); + if (state & QStyle::State_Horizontal) states << QLatin1String("Horizontal"); + if (state & QStyle::State_Item) states << QLatin1String("Item"); + if (state & QStyle::State_KeyboardFocusChange) states << QLatin1String("KeyboardFocusChange"); + if (state & QStyle::State_MouseOver) states << QLatin1String("MouseOver"); + if (state & QStyle::State_NoChange) states << QLatin1String("NoChange"); + if (state & QStyle::State_Off) states << QLatin1String("Off"); + if (state & QStyle::State_On) states << QLatin1String("On"); + if (state & QStyle::State_Open) states << QLatin1String("Open"); + if (state & QStyle::State_Raised) states << QLatin1String("Raised"); + if (state & QStyle::State_ReadOnly) states << QLatin1String("ReadOnly"); + if (state & QStyle::State_Selected) states << QLatin1String("Selected"); + if (state & QStyle::State_Sibling) states << QLatin1String("Sibling"); + if (state & QStyle::State_Sunken) states << QLatin1String("Sunken"); + if (state & QStyle::State_Top) states << QLatin1String("Top"); + if (state & QStyle::State_UpArrow) states << QLatin1String("UpArrow"); + + qSort(states); + debug << states.join(QLatin1String(" | ")); + debug << ')'; +#else + Q_UNUSED(state); +#endif + return debug; +} +#endif + +/*! + \since 4.6 + + \fn const QStyle *QStyle::proxy() const + + This function returns the current proxy for this style. + By default most styles will return themselves. However + when a proxy style is in use, it will allow the style to + call back into its proxy. +*/ +const QStyle * QStyle::proxy() const +{ + Q_D(const QStyle); + return d->proxyStyle; +} + +/* \internal + + This function sets the base style that style calls will be + redirected to. Note that ownership is not transferred. +*/ +void QStyle::setProxy(QStyle *style) +{ + Q_D(QStyle); + d->proxyStyle = style; +} + +QT_END_NAMESPACE |