Implemented and fixed font functions in DisplayDriver

Added some copy functions to ServerBitmap
Replaced LayerData component of Decorator with DrawData


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6601 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/servers/app/Decorator.h

@@ -122,7 +122,7 @@ protected:
 	
 	ColorSet *_colors;
 	DisplayDriver *_driver;
-	LayerData _layerdata;
+	DrawData _drawdata;
 	int32 _look, _feel, _flags;
 	BRect _zoomrect,_closerect,_minimizerect,_tabrect,_frame,
 		_resizerect,_borderrect;

headers/private/servers/app/DisplayDriver.h

@@ -132,6 +132,11 @@ public:
 	void SetSize(const int32 &w, const int32 &h) { _width=w; _height=h; }
 	void SetBuffer(void *ptr) { _buffer=(uint8*)ptr; }
 	void SetBitsPerPixel(color_space space,int32 bytesperline) { _HandleSpace(space,bytesperline); }
+	void ShallowCopy(const FBBitmap *from)
+	{
+		ServerBitmap::ShallowCopy((ServerBitmap*)from);
+		SetBuffer(from->Bits());
+	}
 };
 
 /*!
@@ -269,6 +274,10 @@ protected:
 	virtual bool AcquireBuffer(FBBitmap *bmp);
 	virtual void ReleaseBuffer(void);
 	
+	// This is for drivers which are internally double buffered and calling this will cause the real
+	// framebuffer to be updated
+	virtual void Invalidate(const BRect &r);
+	
 	void FillArc(const BRect &r, const float &angle, const float &span, DisplayDriver*, SetHorizontalLineFuncType setLine);
 	void FillBezier(BPoint *pts, DisplayDriver* driver, SetHorizontalLineFuncType setLine);
 	void FillEllipse(const BRect &r, DisplayDriver* driver, SetHorizontalLineFuncType setLine);

headers/private/servers/app/ServerBitmap.h

@@ -88,6 +88,25 @@ public:
 	//! Returns the identifier token for the bitmap
 	int32 Token(void) const { return _token; }
 	
+	//! Does a shallow copy of the bitmap passed to it
+	void ShallowCopy(const ServerBitmap *from)
+	{
+		if(!from)
+			return;
+		
+		_initialized=from->_initialized;
+		_area=from->_area;
+		_buffer=from->_buffer;
+		_width=from->_width;
+		_height=from->_height;
+		_bytesperrow=from->_bytesperrow;
+		_space=from->_space;
+		_flags=from->_flags;
+		_bpp=from->_bpp;
+		_token=from->_token;
+		_offset=from->_offset;
+	}
+	
 protected:
 	friend class BitmapManager;
 	friend class PicturePlayer;