1e8cb5827d
Better preprocessor detection of FreeBSD OS Improved the Qt sample git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/trunk@1143 4e206d99-4929-0410-ac5d-dfc041789085
117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include "QSFMLCanvas.hpp"
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#include <QEvent>
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// Platform-specific headers
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#ifdef Q_WS_X11
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#include <Qt/qx11info_x11.h>
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#include <X11/Xlib.h>
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#endif
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////////////////////////////////////////////////////////////
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/// Construct the QSFMLCanvas
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////////////////////////////////////////////////////////////
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QSFMLCanvas::QSFMLCanvas(const QSize& Size, unsigned int FrameTime, QWidget* Parent) :
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QWidget(Parent)
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{
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// Resize the widget
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resize(Size);
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// Setup some states to allow direct rendering into the widget
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setAttribute(Qt::WA_PaintOnScreen);
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setAttribute(Qt::WA_OpaquePaintEvent);
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setAttribute(Qt::WA_NoSystemBackground);
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// Set strong focus to enable keyboard events to be received
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setFocusPolicy(Qt::StrongFocus);
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// Setup the timer
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myTimer.setInterval(FrameTime);
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}
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////////////////////////////////////////////////////////////
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/// Destructor
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////////////////////////////////////////////////////////////
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QSFMLCanvas::~QSFMLCanvas()
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{
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// Nothing to do...
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}
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////////////////////////////////////////////////////////////
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/// Notification for the derived class that moment is good
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/// for doing initializations
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////////////////////////////////////////////////////////////
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void QSFMLCanvas::OnInit()
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{
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// Nothing to do by default...
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}
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////////////////////////////////////////////////////////////
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/// Notification for the derived class that moment is good
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/// for doing its update and drawing stuff
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////////////////////////////////////////////////////////////
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void QSFMLCanvas::OnUpdate()
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{
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// Nothing to do by default...
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}
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////////////////////////////////////////////////////////////
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/// Return the paint engine used by the widget to draw itself
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////////////////////////////////////////////////////////////
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QPaintEngine* QSFMLCanvas::paintEngine() const
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{
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return 0;
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}
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////////////////////////////////////////////////////////////
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/// Called each time an event is received by the widget ;
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/// we use it to catch the Polish event and initialize
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/// our SFML window
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////////////////////////////////////////////////////////////
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bool QSFMLCanvas::event(QEvent* Event)
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{
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if (Event->type() == QEvent::Polish)
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{
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// Under X11, we need to flush the commands sent to the server to ensure that
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// SFML will get an updated view of the windows
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#ifdef Q_WS_X11
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XFlush(QX11Info::display());
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#endif
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// Create the SFML window with the widget handle
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Create(winId());
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// Let the derived class do its specific stuff
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OnInit();
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// Setup the timer to trigger a refresh at specified framerate
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connect(&myTimer, SIGNAL(timeout()), this, SLOT(repaint()));
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myTimer.start();
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}
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return QWidget::event(Event);
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}
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////////////////////////////////////////////////////////////
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/// Called when the widget needs to be painted ;
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/// we use it to display a new frame
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////////////////////////////////////////////////////////////
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void QSFMLCanvas::paintEvent(QPaintEvent*)
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{
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// Let the derived class do its specific stuff
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OnUpdate();
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// Display on screen
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Display();
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}
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