1 files changed, 59 insertions, 0 deletions
diff --git a/examples/opengl/overlay_x11/rubberbandwidget.cpp b/examples/opengl/overlay_x11/rubberbandwidget.cpp
new file mode 100644
index 0000000..7a3b003
--- /dev/null
+++ b/examples/opengl/overlay_x11/rubberbandwidget.cpp
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Implementation of a widget that draws a rubberband. Designed to be used 
+** in an X11 overlay visual
+**
+** Copyright (C) 1999-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "rubberbandwidget.h"
+#include <qpainter.h>
+
+
+RubberbandWidget::RubberbandWidget( QColor transparentColor, QWidget *parent, 
+				    const char *name, WFlags f )
+    : QWidget( parent, name, f )
+{
+    setBackgroundColor( transparentColor );
+    on = FALSE;
+}
+
+
+void RubberbandWidget::mousePressEvent( QMouseEvent* e )
+{
+    p1 = e->pos();
+    p2 = p1;
+    p3 = p1;
+    on = TRUE;
+    setMouseTracking( TRUE );
+}
+
+
+void RubberbandWidget::mouseMoveEvent( QMouseEvent* e )
+{
+    if ( on ) {
+	p2 = e->pos();
+	QPainter p( this );
+	// Erase last drawn rubberband:
+	p.setPen( QPen( backgroundColor(), 3 ) );
+	p.drawRect( QRect( p1, p3 ) );
+	// Draw the new one:
+	p.setPen( QPen( white, 3 ) );
+	p.drawRect( QRect(p1, p2) );
+	p3 = p2;
+    }
+}
+
+void RubberbandWidget::mouseReleaseEvent( QMouseEvent* )
+{
+    if ( on ) {
+	QPainter p ( this );
+	p.eraseRect( rect() );
+    }
+    on = FALSE;
+    setMouseTracking( FALSE );
+}