Added the trunk/branches/tags directories at repository root, and moved previous root into trunk/

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/trunk@1002 4e206d99-4929-0410-ac5d-dfc041789085

samples/qt/QSFMLCanvas.cpp

@@ -0,0 +1,106 @@
+
+////////////////////////////////////////////////////////////
+// Headers
+////////////////////////////////////////////////////////////
+#include "QSFMLCanvas.hpp"
+
+// Platform-specific headers
+#ifdef Q_WS_X11
+    #include <Qt/qx11info_x11.h>
+    #include <X11/Xlib.h>
+#endif
+
+
+////////////////////////////////////////////////////////////
+/// Construct the QSFMLCanvas
+////////////////////////////////////////////////////////////
+QSFMLCanvas::QSFMLCanvas(QWidget* Parent, const QPoint& Position, const QSize& Size, unsigned int FrameTime) :
+QWidget       (Parent),
+myInitialized (false)
+{
+    // Setup some states to allow direct rendering into the widget
+    setAttribute(Qt::WA_PaintOnScreen);
+    setAttribute(Qt::WA_NoSystemBackground);
+
+    // Set strong focus to enable keyboard events to be received
+    setFocusPolicy(Qt::StrongFocus);
+
+    // Setup the widget geometry
+    move(Position);
+    resize(Size);
+
+    // Setup the timer
+    myTimer.setInterval(FrameTime);
+}
+
+
+////////////////////////////////////////////////////////////
+/// Destructor
+////////////////////////////////////////////////////////////
+QSFMLCanvas::~QSFMLCanvas()
+{
+    // Nothing to do...
+}
+
+
+////////////////////////////////////////////////////////////
+/// Notification for the derived class that moment is good
+/// for doing initializations
+////////////////////////////////////////////////////////////
+void QSFMLCanvas::OnInit()
+{
+    // Nothing to do by default...
+}
+
+
+////////////////////////////////////////////////////////////
+/// Notification for the derived class that moment is good
+/// for doing its update and drawing stuff
+////////////////////////////////////////////////////////////
+void QSFMLCanvas::OnUpdate()
+{
+    // Nothing to do by default...
+}
+
+
+////////////////////////////////////////////////////////////
+/// Called when the widget is shown ;
+/// we use it to initialize our SFML window
+////////////////////////////////////////////////////////////
+void QSFMLCanvas::showEvent(QShowEvent*)
+{
+    if (!myInitialized)
+    {
+        // Under X11, we need to flush the commands sent to the server to ensure that
+        // SFML will get an updated view of the windows
+        #ifdef Q_WS_X11
+            XFlush(QX11Info::display());
+        #endif
+
+        // Create the SFML window with the widget handle
+        Create(winId());
+
+        // Let the derived class do its specific stuff
+        OnInit();
+
+        // Setup the timer to trigger a refresh at specified framerate
+        connect(&myTimer, SIGNAL(timeout()), this, SLOT(repaint()));
+        myTimer.start();
+
+        myInitialized = true;
+    }
+}
+
+
+////////////////////////////////////////////////////////////
+/// Called when the widget needs to be painted ;
+/// we use it to display a new frame
+////////////////////////////////////////////////////////////
+void QSFMLCanvas::paintEvent(QPaintEvent*)
+{
+    // Let the derived class do its specific stuff
+    OnUpdate();
+
+    // Display on screen
+    Display();
+}