Experimenting to make video visible.

Removed the hack to set translucent window background in the mediaplayer.

Then tried the following:
1. Direct write to backing store: does not work (backing bitmap is 16MU)
2. Set window background color: does not work (is over-written by control's Draw function)
3. Brush using CWindowGc from widget's paint event: does not work (is over-written by control's Draw function)
4. Hack QSymbianControl to blit a transparent bitmap from the Draw function: does work
5. Hack QSymbianControl to brush using CWindowGc from the Draw function: does work

Configuration 5 is the one being committed.

Other things we could try:
6. Trigger switch to 16MA backing store if child widgets have been created.  This could be tested by calling RWindowTreeNode::Child on the TLW's window.
	- Maybe we could test whether the child window's display mode is 16MA?
7. Somehow tell QSymbianControl not to draw anything at all
	- Based on setting Qt::WA_PaintOnScreen?
	- Then we either:
		- (Ideally) do nothing, and rely on video stack to paint the necessary transparency
		- Brush using CWindowGc from widget's paint event

1 files changed, 33 insertions, 0 deletions

diff --git a/src/gui/kernel/qt_s60_p.h b/src/gui/kernel/qt_s60_p.h
index 1ac6a8e..5331504 100644
--- a/src/gui/kernel/qt_s60_p.h
+++ b/src/gui/kernel/qt_s60_p.h
@@ -74,6 +74,8 @@
 #include <eikspane.h>               // CEikStatusPane
 #endif
 
+#include <fbs.h> // for CFbsBitmap
+
 QT_BEGIN_NAMESPACE
 
 // Application internal HandleResourceChangeL events,
@@ -120,6 +122,8 @@ public:
 };
 class QLongTapTimer;
 
+class CFbsBitmap;
+
 class QSymbianControl : public CCoeControl, public QAbstractLongTapObserver
 {
 public:
@@ -142,6 +146,8 @@ public:
     void sendInputEvent(QWidget *widget, QInputEvent *inputEvent);
     void setIgnoreFocusChanged(bool enabled) { m_ignoreFocusChanged = enabled; }
     void CancelLongTapTimer();
+    
+    void setBlit(TUint32 color);
 
 protected:
     void Draw(const TRect& aRect) const;
@@ -156,13 +162,40 @@ private:
     void sendMouseEvent(QWidget *widget, QMouseEvent *mEvent);
     void HandleLongTapEventL( const TPoint& aPenEventLocation, const TPoint& aPenEventScreenLocation );
 
+	void fillBitmap();
+    
 private:
     QWidget *qwidget;
     bool m_ignoreFocusChanged;
     QLongTapTimer* m_longTapDetector;
     bool m_previousEventLongTap;
+    
+    QScopedPointer<CFbsBitmap> m_bitmap;
+    TUint32 m_color;
 };
 
+
+
+inline void QSymbianControl::setBlit(TUint32 color)
+{
+	m_bitmap.reset( q_check_ptr(new CFbsBitmap) );	// CBase derived object needs check on new
+	qt_symbian_throwIfError( m_bitmap->Create(Size(), EColor16MA) );
+	
+	// Not sure if bitmap pixel data is zero-initialized, so do it here to make sure
+	m_color = color;
+	fillBitmap();
+}
+
+inline void QSymbianControl::fillBitmap() 
+{
+	TUint32* ptr = m_bitmap->DataAddress();
+	for(int y=0; y<Size().iHeight; ++y)
+		for(int x=0; x<Size().iWidth; ++x)
+			*ptr++ = m_color;
+}
+
+
+
 inline void QS60Data::updateScreenSize()
 {
     TPixelsTwipsAndRotation params;