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Diffstat (limited to 'doc/src/examples/imageviewer.qdoc')
| -rw-r--r-- | doc/src/examples/imageviewer.qdoc | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/doc/src/examples/imageviewer.qdoc b/doc/src/examples/imageviewer.qdoc index 638c0c3fb4..554543e252 100644 --- a/doc/src/examples/imageviewer.qdoc +++ b/doc/src/examples/imageviewer.qdoc @@ -45,25 +45,25 @@ \image imageviewer-example.png Screenshot of the Image Viewer example With the Image Viewer application, the users can view an image of - their choice. The \gui File menu gives the user the possibility + their choice. The \uicontrol File menu gives the user the possibility to: \list - \li \gui{Open...} - Open an image file - \li \gui{Print...} - Print an image - \li \gui{Exit} - Exit the application + \li \uicontrol{Open...} - Open an image file + \li \uicontrol{Print...} - Print an image + \li \uicontrol{Exit} - Exit the application \endlist - Once an image is loaded, the \gui View menu allows the users to: + Once an image is loaded, the \uicontrol View menu allows the users to: \list - \li \gui{Zoom In} - Scale the image up by 25% - \li \gui{Zoom Out} - Scale the image down by 25% - \li \gui{Normal Size} - Show the image at its original size - \li \gui{Fit to Window} - Stretch the image to occupy the entire window + \li \uicontrol{Zoom In} - Scale the image up by 25% + \li \uicontrol{Zoom Out} - Scale the image down by 25% + \li \uicontrol{Normal Size} - Show the image at its original size + \li \uicontrol{Fit to Window} - Stretch the image to occupy the entire window \endlist - In addition the \gui Help menu provides the users with information + In addition the \uicontrol Help menu provides the users with information about the Image Viewer example in particular, and about Qt in general. @@ -78,7 +78,7 @@ We use \c createActions() and \c createMenus() when constructing the \c ImageViewer widget. We use the \c updateActions() function to update the menu entries when a new image is loaded, or when - the \gui {Fit to Window} option is toggled. The zoom slots use \c + the \uicontrol {Fit to Window} option is toggled. The zoom slots use \c scaleImage() to perform the zooming. In turn, \c scaleImage() uses \c adjustScrollBar() to preserve the focal point after scaling an image. @@ -91,7 +91,7 @@ We set \c {imageLabel}'s size policy to \l {QSizePolicy::Ignored}{ignored}, making the users able to scale - the image to whatever size they want when the \gui {Fit to Window} + the image to whatever size they want when the \uicontrol {Fit to Window} option is turned on. Otherwise, the default size polizy (\l {QSizePolicy::Preferred}{preferred}) will make scroll bars appear when the scroll area becomes smaller than the label's minimum size @@ -115,7 +115,7 @@ In the \c open() slot, we show a file dialog to the user. The easiest way to create a QFileDialog is to use the static convenience functions. QFileDialog::getOpenFileName() returns an - existing file selected by the user. If the user presses \gui + existing file selected by the user. If the user presses \uicontrol Cancel, QFileDialog returns an empty string. Unless the file name is a empty string, we check if the file's @@ -130,7 +130,7 @@ messages arranged along two axes: severity (question, information, warning and critical) and complexity (the number of necessary response buttons). In this particular example an - information message with an \gui OK button (the default) is + information message with an \uicontrol OK button (the default) is sufficient, since the message is part of a normal operation. \snippet examples/widgets/imageviewer/imageviewer.cpp 3 @@ -138,11 +138,11 @@ If the format is supported, we display the image in \c imageLabel by setting the label's \l {QLabel::pixmap}{pixmap}. Then we enable - the \gui Print and \gui {Fit to Window} menu entries and update - the rest of the view menu entries. The \gui Open and \gui Exit + the \uicontrol Print and \uicontrol {Fit to Window} menu entries and update + the rest of the view menu entries. The \uicontrol Open and \uicontrol Exit entries are enabled by default. - If the \gui {Fit to Window} option is turned off, the + If the \uicontrol {Fit to Window} option is turned off, the QScrollArea::widgetResizable property is \c false and it is our responsibility (not QScrollArea's) to give the QLabel a reasonable size based on its contents. We call @@ -164,7 +164,7 @@ In release mode, the macro simply disappear. The mode can be set in the application's \c .pro file. One way to do so is to add an - option to \gui qmake when building the application: + option to \uicontrol qmake when building the application: \snippet doc/src/snippets/code/doc_src_examples_imageviewer.qdoc 2 @@ -192,8 +192,8 @@ We implement the zooming slots using the private \c scaleImage() function. We set the scaling factors to 1.25 and 0.8, - respectively. These factor values ensure that a \gui {Zoom In} - action and a \gui {Zoom Out} action will cancel each other (since + respectively. These factor values ensure that a \uicontrol {Zoom In} + action and a \uicontrol {Zoom Out} action will cancel each other (since 1.25 * 0.8 == 1), and in that way the normal image size can be restored using the zooming features. @@ -221,10 +221,10 @@ \snippet examples/widgets/imageviewer/imageviewer.cpp 14 The \c fitToWindow() slot is called each time the user toggled - the \gui {Fit to Window} option. If the slot is called to turn on + the \uicontrol {Fit to Window} option. If the slot is called to turn on the option, we tell the scroll area to resize its child widget with the QScrollArea::setWidgetResizable() function. Then we - disable the \gui {Zoom In}, \gui {Zoom Out} and \gui {Normal + disable the \uicontrol {Zoom In}, \uicontrol {Zoom Out} and \uicontrol {Normal Size} menu entries using the private \c updateActions() function. If the \l {QScrollArea::widgetResizable} property is set to \c @@ -240,7 +240,7 @@ label's minimum size hint. The screenshots below shows an image in its normal size, and the - same image with the \gui {Fit to window} option turned on. + same image with the \uicontrol {Fit to window} option turned on. Enlarging the window will stretch the image further, as shown in the third screenshot. @@ -279,7 +279,7 @@ \snippet examples/widgets/imageviewer/imageviewer.cpp 20 In the private \c createMenu() function, we add the previously - created actions to the \gui File, \gui View and \gui Help menus. + created actions to the \uicontrol File, \uicontrol View and \uicontrol Help menus. The QMenu class provides a menu widget for use in menu bars, context menus, and other popup menus. The QMenuBar class provides @@ -292,8 +292,8 @@ \snippet examples/widgets/imageviewer/imageviewer.cpp 22 The private \c updateActions() function enables or disables the - \gui {Zoom In}, \gui {Zoom Out} and \gui {Normal Size} menu - entries depending on whether the \gui {Fit to Window} option is + \uicontrol {Zoom In}, \uicontrol {Zoom Out} and \uicontrol {Normal Size} menu + entries depending on whether the \uicontrol {Fit to Window} option is turned on or off. \snippet examples/widgets/imageviewer/imageviewer.cpp 23 |