#ifndef _VIEW_BUFFER_H_
#define _VIEW_BUFFER_H_

#include <SupportDefs.h>
#include <View.h>

typedef void (*resize_callback)(int32 width, int32 height, void *data);

class ViewBuffer : public BView {
public:
                                                        ViewBuffer(BRect frame);
virtual                                         ~ViewBuffer();

virtual void                            FrameResized(float new_width, float new_height);
                void                            SetResizeCallback(resize_callback callback, void *data);
                status_t                        GetSize(int32 *width, int32 *height);

                uint8                           ForegroundColor(uint8 attr);
                uint8                           BackgroundColor(uint8 attr);
                rgb_color                       GetPaletteEntry(uint8 index);

                void                            PutGlyph(int32 x, int32 y, uint8 glyph, uint8 attr);
                void                            FillGlyph(int32 x, int32 y, int32 width, int32 height, uint8 glyph, uint8 attr);
                void                            RenderGlyph(int32 x, int32 y, uint8 glyph, uint8 attr);

virtual void                            Draw(BRect updateRect);

                void                            DrawCursor(int32 x, int32 y);
                void                            MoveCursor(int32 x, int32 y);

                void                            Blit(int32 srcx, int32 srcy, int32 width, int32 height, int32 destx, int32 desty);
                void                            Clear(uint8 attr);

private:
                void                            _RenderGlyph(int32 x, int32 y, const char* string, uint8 attr, bool fill = true);

                int32                           fColumns;
                int32                           fRows;

                uint16*                         fGlyphGrid;

                resize_callback         fResizeCallback;
                void                            *fResizeCallbackData;
                int32                           fCursorX;
                int32                           fCursorY;

                rgb_color                       fPalette[8];
};

#endif