modules/gui/skins2/os2/os2_graphics.hpp

   1 /*****************************************************************************
   2  * os2_graphics.hpp
   3  *****************************************************************************
   4  * Copyright (C) 2003, 2013 the VideoLAN team
   5  *
   6  * Authors: Cyril Deguet      <asmax@via.ecp.fr>
   7  *          Olivier Teulière <ipkiss@via.ecp.fr>
   8  *          KO Myung-Hun      <komh@chollian.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef OS2_GRAPHICS_HPP
  26 #define OS2_GRAPHICS_HPP
  27
  28 #include "../src/os_graphics.hpp"
  29
  30
  31 class GenericBitmap;
  32
  33 /// OS2 implementation of OSGraphics
  34 class OS2Graphics: public OSGraphics
  35 {
  36 public:
  37     OS2Graphics( intf_thread_t *pIntf, int width, int height );
  38     virtual ~OS2Graphics();
  39
  40     /// Clear the graphics
  41     virtual void clear( int xDest = 0, int yDest = 0,
  42                         int width = -1, int height = -1 );
  43
  44     /// Render a bitmap on this graphics
  45     virtual void drawBitmap( const GenericBitmap &rBitmap, int xSrc = 0,
  46                              int ySrc = 0, int xDest = 0, int yDest = 0,
  47                              int width = -1, int height = -1,
  48                              bool blend = false );
  49
  50     /// Draw another graphics on this one
  51     virtual void drawGraphics( const OSGraphics &rGraphics, int xSrc = 0,
  52                                int ySrc = 0, int xDest = 0, int yDest = 0,
  53                                int width = -1, int height = -1 );
  54
  55     /// Draw an empty rectangle on the grahics (color is #RRGGBB)
  56     virtual void drawRect( int left, int top, int width, int height,
  57                            uint32_t color );
  58
  59
  60     /// Draw a filled rectangle on the grahics (color is #RRGGBB)
  61     virtual void fillRect( int left, int top, int width, int height,
  62                            uint32_t color );
  63
  64     /// Set the shape of a window with the mask of this graphics.
  65     virtual void applyMaskToWindow( OSWindow &rWindow );
  66
  67     /// Copy the graphics on a window
  68     virtual void copyToWindow( OSWindow &rWindow, int xSrc,
  69                                int ySrc, int width, int height,
  70                                int xDest, int yDest );
  71
  72     /// Tell whether the pixel at the given position is visible
  73     virtual bool hit( int x, int y ) const;
  74
  75     /// Getters for the size
  76     virtual int getWidth() const { return m_width; }
  77     virtual int getHeight() const { return m_height; }
  78
  79     /// Get the device context handler
  80     virtual HDC getPS() const { return m_hps; }
  81
  82     /// Get the mask
  83     virtual HRGN getMask() const { return m_mask; }
  84
  85 private:
  86     /// Size of the image
  87     int m_width, m_height;
  88
  89     /// Device context
  90     HDC m_hdc;
  91
  92     /// Presentaiton space
  93     HPS m_hps;
  94
  95     /// Bitmap handle
  96     HBITMAP m_hbm;
  97
  98     /// Transparency mask
  99     HRGN m_mask;
 100
 101     /// Add a segment in a region
 102     void addSegmentInRegion( HRGN &rMask, int start, int end, int line,
 103                              int height );
 104
 105     /// check boundaries for graphics and bitmaps
 106     bool checkBoundaries( int x_src, int y_src, int w_src, int h_src,
 107                           int& x_target, int& y_target,
 108                           int& w_target, int& h_target );
 109
 110     /// invert Y of a point against the given height
 111     int invertPointY( int y, int height ) const
 112     {
 113         return ( height - 1 ) - y;
 114     }
 115
 116     /// invert Y of a point against the m_height
 117     int invertPointY( int y ) const
 118     {
 119         return ( m_height - 1 ) - y;
 120     }
 121
 122     /// invert Y of a rectangular against the given height
 123     int invertRectY( int y, int height ) const
 124     {
 125         // bottom is inclusive, top is exclusive
 126         // the following is the short of ( height - 1 ) - ( y - 1 )
 127         return height - y;
 128     }
 129
 130     /// invert Y of a rectangular against the m_height
 131     int invertRectY( int y ) const
 132     {
 133         // bottom is inclusive, top is exclusive
 134         // the following is the short of ( m_height - 1 ) - ( y - 1 )
 135         return m_height - y;
 136     }
 137 };
 138
 139
 140 #endif