cursor.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef MOUSE_H
#define MOUSE_H
 
#include "backends/platform/psp/default_display_client.h"
#include "graphics/blit.h"
 
class Cursor : public DefaultDisplayClient {
private:
    int _hotspotX, _hotspotY;
    uint32 _keyColor;
    int _cursorTargetScale;
    bool _useCursorPalette;
    bool _hasCursorPalette;
    uint32  _mouseLimitWidth;
    uint32  _mouseLimitHeight;
    int32   _x, _y;
    Palette _screenPalette;         // separate palette for screen. default 'palette' is cursor palette.
    bool _fakeAlpha;            // true if treating e.g. 555 as 5551, false if there's a genuine alpha channel
    Graphics::PixelFormat _srcFormat;
    Graphics::PixelFormat _dstFormat;
    Graphics::FastBlitFunc _blitFunc;
 
    void updateRendererOffset();
 
public:
    Cursor() : _hotspotX(0), _hotspotY(0), _keyColor(0), _cursorTargetScale(0),
            _useCursorPalette(false), _hasCursorPalette(false), _mouseLimitWidth(0),
            _mouseLimitHeight(0), _x(0), _y(0), _fakeAlpha(false) { }
    virtual ~Cursor() { deallocate(); }
 
    void setKeyColor(uint32 color);
    void setCursorTargetScale(int scale) { _cursorTargetScale = scale; }
    void setScreenPalette(const byte *colors, uint start, uint num);
    void copyFromArray(const byte *array);
    Palette &palette() { return _palette; }
    Buffer &buffer() { return _buffer; }
    void setCursorPalette(const byte *colors, uint start, uint num);
    void enableCursorPalette(bool enable);
    bool isCursorPaletteEnabled() const { return _useCursorPalette; }
    void setLimits(uint32 width, uint32 height);
    void setXY(int x, int y);
    int32 getX() const { return _x; }
    int32 getY() const { return _y; }
    bool increaseXY(int32 incX, int32 incY); // returns true if there's a change in x or y
    void adjustXYForScreenSize(int32 &x, int32 &y);
    void init();
    void setHotspot(int32 x, int32 y);
    void setScreenPaletteScummvmPixelFormat(const Graphics::PixelFormat *format);
    void setSizeAndScummvmPixelFormat(uint32 widht, uint32 height, const Graphics::PixelFormat *format);
    void clearKeyColor();
    void useGlobalScaler(bool val) { _renderer.setUseGlobalScaler(val); }
    bool allocate();
    void deallocate();
 
private:
    void setSize(uint32 width, uint32 height);
    void getPixelFormatsFromScummvmPixelFormat(const Graphics::PixelFormat *format,
            PSPPixelFormat::Type &bufferFormat,
            PSPPixelFormat::Type &paletteFormat,
            uint32 &numOfEntries);
    void setRendererModePalettized(bool palettized);
};
 
#endif /* MOUSE_H */