tb_renderer.h

// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#ifndef TB_RENDERER_H
#define TB_RENDERER_H

#include "tb_core.h"
#include "tb_geometry.h"
#include "tb_color.h"
#include "tb_linklist.h"

namespace tb {

class TBBitmapFragment;

class TBRendererListener : public TBLinkOf<TBRendererListener>
{
public:
    virtual ~TBRendererListener() {}

    virtual void OnContextLost() = 0;

    virtual void OnContextRestored() = 0;
};

class TBBitmap
{
public:
    virtual ~TBBitmap() {}

    virtual int Width() = 0;
    virtual int Height() = 0;

    virtual void SetData(uint32_t *data) = 0;
};

class TBRenderer
{
public:
    virtual ~TBRenderer() {}

    virtual void BeginPaint(int render_target_w, int render_target_h) = 0;
    virtual void EndPaint() = 0;

    virtual void Translate(int dx, int dy) = 0;

    virtual void SetOpacity(float opacity) = 0;
    virtual float GetOpacity() = 0;

    virtual TBRect SetClipRect(const TBRect &rect, bool add_to_current) = 0;

    virtual TBRect GetClipRect() = 0;

    virtual void DrawBitmap(const TBRect &dst_rect, const TBRect &src_rect, TBBitmapFragment *bitmap_fragment) = 0;

    virtual void DrawBitmap(const TBRect &dst_rect, const TBRect &src_rect, TBBitmap *bitmap) = 0;

    virtual void DrawBitmapColored(const TBRect &dst_rect, const TBRect &src_rect, const TBColor &color, TBBitmapFragment *bitmap_fragment) = 0;

    virtual void DrawBitmapColored(const TBRect &dst_rect, const TBRect &src_rect, const TBColor &color, TBBitmap *bitmap) = 0;

    virtual void DrawBitmapTile(const TBRect &dst_rect, TBBitmap *bitmap) = 0;

    virtual void DrawBitmapTileColored(const TBRect &dst_rect, const TBColor &color, TBBitmap *bitmap) = 0;

    virtual void FlushBitmapFragment(TBBitmapFragment *bitmap_fragment) = 0;

    virtual TBBitmap *CreateBitmap(int width, int height, uint32_t *data) = 0;

    void AddListener(TBRendererListener *listener) { m_listeners.AddLast(listener); }

    void RemoveListener(TBRendererListener *listener) { m_listeners.Remove(listener); }

    void InvokeContextLost();

    void InvokeContextRestored();

    enum BATCH_HINT {
        BATCH_HINT_DRAW_BITMAP_FRAGMENT
    };

    virtual void BeginBatchHint(BATCH_HINT /*hint*/) {}

    virtual void EndBatchHint() {}
private:
    TBLinkListOf<TBRendererListener> m_listeners;
};

} // namespace tb

#endif // TB_RENDERER_H