Add QPlatformGLWidgetSurface::filterEvent

This allows platform integrations to do something special when
the QGLWidget recieves an event. Of particular interest is the
ParentAboutToChange and ParentChange events.

2 files changed, 15 insertions, 0 deletions

diff --git a/src/opengl/qgl_lite.cpp b/src/opengl/qgl_lite.cpp
index fa1439c..0ffda5f 100644
--- a/src/opengl/qgl_lite.cpp
+++ b/src/opengl/qgl_lite.cpp
@@ -68,6 +68,12 @@ QPlatformGLWidgetSurface::~QPlatformGLWidgetSurface()
 {
 }
 
+bool QPlatformGLWidgetSurface::filterEvent(QEvent*)
+{
+    // By default, return false to allow the event to pass through
+    return false;
+}
+
 
 bool QGLFormat::hasOpenGL()
 {
@@ -242,6 +248,14 @@ void QGLWidget::setMouseTracking(bool enable)
 
 bool QGLWidget::event(QEvent *e)
 {
+    Q_D(QGLWidget);
+
+    if (d->wsurf) {
+        bool eventFiltered = d->wsurf->filterEvent(e);
+        if (eventFiltered)
+            return true;
+    }
+
     return QWidget::event(e);
 }
 
diff --git a/src/opengl/qglplatformintegration_lite.h b/src/opengl/qglplatformintegration_lite.h
index 94d4da0..bec920c 100644
--- a/src/opengl/qglplatformintegration_lite.h
+++ b/src/opengl/qglplatformintegration_lite.h
@@ -59,6 +59,7 @@ public:
     virtual bool create(QGLWidget*, QGLFormat&) = 0;
 
     virtual void setGeometry(const QRect&) = 0;
+    virtual bool filterEvent(QEvent*);
 };