wg_painter.h

// wg_painter.h
//
// CPainter class which provides useful graphics routines
//
//
// Copyright (c) 2002-2004 Rob Wiskow
// rob-dev@boxedchaos.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//


#ifndef _WG_GRAPHICS_H_
#define _WG_GRAPHICS_H_

#include "wg_rect.h"
#include "wg_color.h"
#include "wg_point.h"
#include "wg_window.h"
#include "SDL.h"


namespace wGui
{


class CPainter
{
public:
     enum EPaintMode {
          PAINT_IGNORE = 0,  
          PAINT_REPLACE,  
          PAINT_NORMAL,  
          PAINT_OR,  
          PAINT_AND,  
          PAINT_XOR,  
          PAINT_ADDITIVE  
     };

     CPainter(SDL_Surface* pSurface, EPaintMode ePaintMode = PAINT_NORMAL);

     CPainter(CWindow* pWindow, EPaintMode ePaintMode = PAINT_NORMAL);

     virtual ~CPainter(void) { }


     void DrawHLine(int xStart, int xEnd, int y, const CRGBColor& LineColor = DEFAULT_LINE_COLOR);

     void DrawVLine(int yStart, int yEnd, int x, const CRGBColor& LineColor = DEFAULT_LINE_COLOR);

     void DrawRect(const CRect& Rect, bool bFilled, const CRGBColor& BorderColor = DEFAULT_LINE_COLOR,
          const CRGBColor& FillColor = DEFAULT_FOREGROUND_COLOR);

     void DrawLine(const CPoint& StartPoint, const CPoint& EndPoint, const CRGBColor& LineColor = DEFAULT_LINE_COLOR);

     void DrawPoint(const CPoint& Point, const CRGBColor& PointColor = DEFAULT_LINE_COLOR);

     CRGBColor ReadPoint(const CPoint& Point);

     void ReplaceColor(const CRGBColor& NewColor, const CRGBColor& OldColor);

     void TransparentColor(const CRGBColor& TransparentColor);


protected:
     void LockSurface(void);

     void UnlockSurface(void);

     CRGBColor MixColor(const CRGBColor& ColorBase, const CRGBColor& ColorAdd);

     SDL_Surface* m_pSurface;  
     CWindow* m_pWindow;  
     EPaintMode m_PaintMode;  
};


}

#endif // _WG_GRAPHICS_H_

---