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Diffstat (limited to 'examples/widgets/doc/concentriccircles.qdoc')
| -rw-r--r-- | examples/widgets/doc/concentriccircles.qdoc | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/examples/widgets/doc/concentriccircles.qdoc b/examples/widgets/doc/concentriccircles.qdoc index 67bc125dbe..aa93b7ece9 100644 --- a/examples/widgets/doc/concentriccircles.qdoc +++ b/examples/widgets/doc/concentriccircles.qdoc @@ -26,7 +26,7 @@ ****************************************************************************/ /*! - \example painting/concentriccircles + \example widgets/painting/concentriccircles \title Concentric Circles Example The Concentric Circles example shows the improved rendering @@ -74,7 +74,7 @@ The CircleWidget class inherits QWidget, and is a custom widget which renders several animated concentric circles. - \snippet painting/concentriccircles/circlewidget.h 0 + \snippet widgets/painting/concentriccircles/circlewidget.h 0 We declare the \c floatBased and \c antialiased variables to hold whether an instance of the class should be rendered with integer @@ -97,7 +97,7 @@ In the constructor we make the widget's rendering integer based and aliased by default: - \snippet painting/concentriccircles/circlewidget.cpp 0 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 0 We initialize the widget's \c frameNo variable, and set the widget's background color using the QWidget::setBackgroundColor() @@ -111,9 +111,9 @@ useful. The widget can also make use of extra space, so it should get as much space as possible. - \snippet painting/concentriccircles/circlewidget.cpp 1 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 1 \codeline - \snippet painting/concentriccircles/circlewidget.cpp 2 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 2 The public \c setFloatBased() and \c setAntialiased() functions update the widget's rendering preferences, i.e. whether the widget @@ -124,9 +124,9 @@ QWidget::update() function, forcing a repaint of the widget with the new rendering preferences. - \snippet painting/concentriccircles/circlewidget.cpp 3 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 3 \codeline - \snippet painting/concentriccircles/circlewidget.cpp 4 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 4 The default implementations of the QWidget::minimumSizeHint() and QWidget::sizeHint() functions return invalid sizes if there is no @@ -136,14 +136,14 @@ We reimplement the functions to give the widget minimum and preferred sizes which are reasonable within our application. - \snippet painting/concentriccircles/circlewidget.cpp 5 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 5 The nextAnimationFrame() slot simply increments the \c frameNo variable's value, and calls the QWidget::update() function which schedules a paint event for processing when Qt returns to the main event loop. - \snippet painting/concentriccircles/circlewidget.cpp 6 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 6 A paint event is a request to repaint all or part of the widget. The \c paintEvent() function is an event handler that can @@ -158,7 +158,7 @@ widget's cocentric circles. The translation ensures that the center of the circles will be equivalent to the widget's center. - \snippet painting/concentriccircles/circlewidget.cpp 7 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 7 When painting a circle, we use the number of "animation frames" to determine the alpha channel of the circle's color. The alpha @@ -166,7 +166,7 @@ fully transparent color, while 255 represents a fully opaque color. - \snippet painting/concentriccircles/circlewidget.cpp 8 + \snippet widgets/painting/concentriccircles/circlewidget.cpp 8 If the calculated alpha channel is fully transparent, we don't draw anything since that would be equivalent to drawing a white @@ -190,7 +190,7 @@ window rendering four \c {CircleWidget}s using different combinations of precision and aliasing. - \snippet painting/concentriccircles/window.h 0 + \snippet widgets/painting/concentriccircles/window.h 0 We declare the various components of the main window, i.e., the text labels and a double array that will hold reference to the four \c @@ -199,12 +199,12 @@ \section1 Window Class Implementation - \snippet painting/concentriccircles/window.cpp 0 + \snippet widgets/painting/concentriccircles/window.cpp 0 In the constructor, we first create the various labels and put them in a QGridLayout. - \snippet painting/concentriccircles/window.cpp 1 + \snippet widgets/painting/concentriccircles/window.cpp 1 Then we create a QTimer. The QTimer class is a high-level programming interface for timers, and provides repetitive and @@ -215,7 +215,7 @@ them to the layout), we connect the QTimer::timeout() signal to each of the widgets' \c nextAnimationFrame() slots. - \snippet painting/concentriccircles/window.cpp 2 + \snippet widgets/painting/concentriccircles/window.cpp 2 Before we set the layout and window title for our main window, we make the timer start with a timeout interval of 100 milliseconds, @@ -224,7 +224,7 @@ four \c {CircleWidget}s, every 100 millisecond which is the reason the circles appear as animated. - \snippet painting/concentriccircles/window.cpp 3 + \snippet widgets/painting/concentriccircles/window.cpp 3 The private \c createLabel() function is implemented to simlify the constructor. |