Dogcows Code - chaz/openbox/blob - otk/rendercontrol.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef __rendercontrol_hh
   3 #define __rendercontrol_hh
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 #include <X11/Xutil.h>
   8 }
   9
  10 #include "surface.hh"
  11
  12 namespace otk {
  13
  14 class ScreenInfo;
  15 class RenderTexture;
  16 class Font;
  17 class RenderColor;
  18 class ustring;
  19 class PixmapMask;
  20
  21 class RenderControl {
  22 protected:
  23   int _screen;
  24
  25 //  bool _dither;
  26
  27   RenderControl(int screen);
  28
  29   virtual void reduceDepth(Surface &sf, XImage *im) const = 0;
  30
  31   inline void highlight(pixel32 *x, pixel32 *y, bool raised) const;
  32   void verticalGradient(Surface &sf, const RenderTexture &texture) const;
  33   void diagonalGradient(Surface &sf, const RenderTexture &texture) const;
  34   void crossDiagonalGradient(Surface &sf, const RenderTexture &texture) const;
  35   virtual void drawGradientBackground(Surface &sf,
  36                                       const RenderTexture &texture) const;
  37   virtual void drawSolidBackground(Surface& sf,
  38                                    const RenderTexture& texture) const;
  39
  40 public:
  41   virtual ~RenderControl();
  42
  43   static RenderControl *getRenderControl(int screen);
  44
  45   virtual void drawRoot(const RenderColor &color) const;
  46
  47   //! Draws a background onto a Surface, as specified by a RenderTexture
  48   /*!
  49     This function will overwrite the entire surface.
  50   */
  51   virtual void drawBackground(Surface &sf,
  52                               const RenderTexture &texture) const;
  53
  54   //! Draws an image onto the surface
  55   /*!
  56     This function will overwrite the entire surface.<br>
  57     The image must be specified in 32-bit packed ARGB format. The current
  58     background will be used for applying the alpha.
  59   */
  60   virtual void drawImage(Surface &sf, int w, int h,
  61                          unsigned long *data) const;
  62
  63   //! Draws a string onto a Surface
  64   virtual void drawString(Surface &sf, const Font &font, int x, int y,
  65                           const RenderColor &color,
  66                           const ustring &string) const;
  67
  68   //! Draws a PixmapMask with a specified color onto a Surface
  69   virtual void drawMask(Surface &sf, const RenderColor &color,
  70                         const PixmapMask &mask) const;
  71 };
  72
  73 }
  74
  75 #endif // __rendercontrol_hh