got this added\?

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12057 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/drawing/BitmapBuffer.cpp

@@ -0,0 +1,73 @@
+// BitmapBuffer.h
+
+#include <Bitmap.h>
+
+#include "BitmapBuffer.h"
+
+// constructor
+BitmapBuffer::BitmapBuffer(BBitmap* bitmap)
+	: fBitmap(bitmap)
+{
+}
+
+// destructor
+BitmapBuffer::~BitmapBuffer()
+{
+	delete fBitmap;
+}
+
+// InitCheck
+status_t
+BitmapBuffer::InitCheck() const
+{
+	status_t ret = B_NO_INIT;
+	if (fBitmap)
+		ret = fBitmap->InitCheck();
+	return ret;
+}
+
+// ColorSpace
+color_space
+BitmapBuffer::ColorSpace() const
+{
+	if (InitCheck() >= B_OK)
+		return fBitmap->ColorSpace();
+	return B_NO_COLOR_SPACE;
+}
+
+// Bits
+void*
+BitmapBuffer::Bits() const
+{
+	if (InitCheck() >= B_OK)
+		return fBitmap->Bits();
+	return NULL;
+}
+
+// BytesPerRow
+uint32
+BitmapBuffer::BytesPerRow() const
+{
+	if (InitCheck() >= B_OK)
+		return fBitmap->BytesPerRow();
+	return 0;
+}
+
+// Width
+uint32
+BitmapBuffer::Width() const
+{
+	if (InitCheck() >= B_OK)
+		return fBitmap->Bounds().IntegerWidth() + 1;
+	return 0;
+}
+
+// Height
+uint32
+BitmapBuffer::Height() const
+{
+	if (InitCheck() >= B_OK)
+		return fBitmap->Bounds().IntegerHeight() + 1;
+	return 0;
+}
+

src/servers/app/drawing/BitmapBuffer.h

@@ -0,0 +1,31 @@
+// BitmapBuffer.h
+
+#ifndef BITMAP_BUFFER_H
+#define BITMAP_BUFFER_H
+
+#include "RenderingBuffer.h"
+
+class BBitmap;
+
+class BitmapBuffer : public RenderingBuffer {
+ public:
+								BitmapBuffer(BBitmap* bitmap);
+	virtual						~BitmapBuffer();
+
+	virtual	status_t			InitCheck() const;
+
+	virtual	color_space			ColorSpace() const;
+	virtual	void*				Bits() const;
+	virtual	uint32				BytesPerRow() const;
+	virtual	uint32				Width() const;
+	virtual	uint32				Height() const;
+
+								// BitmapBuffer
+			const BBitmap*		Bitmap() const
+									{ return fBitmap; }
+ private:
+
+			BBitmap*			fBitmap;
+};
+
+#endif // BITMAP_BUFFER_H