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Diffstat (limited to 'examples/widgets/doc/imageviewer.qdoc')
| -rw-r--r-- | examples/widgets/doc/imageviewer.qdoc | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/examples/widgets/doc/imageviewer.qdoc b/examples/widgets/doc/imageviewer.qdoc index 908f1345a1..3556d52f7e 100644 --- a/examples/widgets/doc/imageviewer.qdoc +++ b/examples/widgets/doc/imageviewer.qdoc @@ -26,7 +26,7 @@ ****************************************************************************/ /*! - \example widgets/widgets/imageviewer + \example widgets/imageviewer \title Image Viewer Example The example shows how to combine QLabel and QScrollArea to @@ -69,7 +69,7 @@ \section1 ImageViewer Class Definition - \snippet widgets/widgets/imageviewer/imageviewer.h 0 + \snippet widgets/imageviewer/imageviewer.h 0 The \c ImageViewer class inherits from QMainWindow. We reimplement the constructor, and create several private slots to facilitate @@ -85,7 +85,7 @@ \section1 ImageViewer Class Implementation - \snippet widgets/widgets/imageviewer/imageviewer.cpp 0 + \snippet widgets/imageviewer/imageviewer.cpp 0 In the constructor we first create the label and the scroll area. @@ -109,8 +109,8 @@ we create the associated actions and menus, and customize the \c {ImageViewer}'s appearance. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 1 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 2 + \snippet widgets/imageviewer/imageviewer.cpp 1 + \snippet widgets/imageviewer/imageviewer.cpp 2 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 @@ -133,8 +133,8 @@ information message with an \uicontrol OK button (the default) is sufficient, since the message is part of a normal operation. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 3 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 4 + \snippet widgets/imageviewer/imageviewer.cpp 3 + \snippet widgets/imageviewer/imageviewer.cpp 4 If the format is supported, we display the image in \c imageLabel by setting the label's \l {QLabel::pixmap}{pixmap}. Then we enable @@ -156,8 +156,8 @@ In the \c print() slot, we first make sure that an image has been loaded into the application: - \snippet widgets/widgets/imageviewer/imageviewer.cpp 5 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 6 + \snippet widgets/imageviewer/imageviewer.cpp 5 + \snippet widgets/imageviewer/imageviewer.cpp 6 If the application is built in debug mode, the \c Q_ASSERT() macro will expand to @@ -184,8 +184,8 @@ Another approach is to add this line directly to the \c .pro file. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 7 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 8 + \snippet widgets/imageviewer/imageviewer.cpp 7 + \snippet widgets/imageviewer/imageviewer.cpp 8 Then we present a print dialog allowing the user to choose a printer and to set a few options. We construct a painter with a @@ -196,8 +196,8 @@ In the end we draw the pixmap at position (0, 0). - \snippet widgets/widgets/imageviewer/imageviewer.cpp 9 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 10 + \snippet widgets/imageviewer/imageviewer.cpp 9 + \snippet widgets/imageviewer/imageviewer.cpp 10 We implement the zooming slots using the private \c scaleImage() function. We set the scaling factors to 1.25 and 0.8, @@ -216,8 +216,8 @@ \li \inlineimage imageviewer-zoom_in_2.png \endtable - \snippet widgets/widgets/imageviewer/imageviewer.cpp 11 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 12 + \snippet widgets/imageviewer/imageviewer.cpp 11 + \snippet widgets/imageviewer/imageviewer.cpp 12 When zooming, we use the QLabel's ability to scale its contents. Such scaling doesn't change the actual size hint of the contents. @@ -226,8 +226,8 @@ normal size of the currently displayed image is to call \c adjustSize() and reset the scale factor to 1.0. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 13 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 14 + \snippet widgets/imageviewer/imageviewer.cpp 13 + \snippet widgets/imageviewer/imageviewer.cpp 14 The \c fitToWindow() slot is called each time the user toggled the \uicontrol {Fit to Window} option. If the slot is called to turn on @@ -266,14 +266,14 @@ label's size to its content. And in the end we update the view menu entries. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 15 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 16 + \snippet widgets/imageviewer/imageviewer.cpp 15 + \snippet widgets/imageviewer/imageviewer.cpp 16 We implement the \c about() slot to create a message box describing what the example is designed to show. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 17 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 18 + \snippet widgets/imageviewer/imageviewer.cpp 17 + \snippet widgets/imageviewer/imageviewer.cpp 18 In the private \c createAction() function, we create the actions providing the application features. @@ -284,8 +284,8 @@ been loaded into the application. In addition we make the \c fitToWindowAct \l {QAction::checkable}{checkable}. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 19 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 20 + \snippet widgets/imageviewer/imageviewer.cpp 19 + \snippet widgets/imageviewer/imageviewer.cpp 20 In the private \c createMenu() function, we add the previously created actions to the \uicontrol File, \uicontrol View and \uicontrol Help menus. @@ -297,16 +297,16 @@ menu bar which we retrieve with the QMainWindow::menuBar() function. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 21 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 22 + \snippet widgets/imageviewer/imageviewer.cpp 21 + \snippet widgets/imageviewer/imageviewer.cpp 22 The private \c updateActions() function enables or disables the \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 widgets/widgets/imageviewer/imageviewer.cpp 23 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 24 + \snippet widgets/imageviewer/imageviewer.cpp 23 + \snippet widgets/imageviewer/imageviewer.cpp 24 In \c scaleImage(), we use the \c factor parameter to calculate the new scaling factor for the displayed image, and resize \c @@ -321,8 +321,8 @@ image pixmap from becoming too large, consuming too much resources in the window system. - \snippet widgets/widgets/imageviewer/imageviewer.cpp 25 - \snippet widgets/widgets/imageviewer/imageviewer.cpp 26 + \snippet widgets/imageviewer/imageviewer.cpp 25 + \snippet widgets/imageviewer/imageviewer.cpp 26 Whenever we zoom in or out, we need to adjust the scroll bars in consequence. It would have been tempting to simply call |