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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef __rendercolor_hh
   3 #define __rendercolor_hh
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 }
   8
   9 #include <map>
  10
  11 namespace otk {
  12
  13 struct RGB {
  14   int r;
  15   int g;
  16   int b;
  17   RGB(int red, int green, int blue) : r(red), g(green), b(blue) {}
  18   // color is in ARGB format
  19   RGB(unsigned long color)
  20     : r((color >> 16) & 0xff),
  21       g((color >> 8) & 0xff),
  22       b((color) & 0xff) {}
  23 };
  24
  25 class RenderColor {
  26 private:
  27   struct CacheItem {
  28     GC gc;
  29     unsigned long pixel;
  30     int count;
  31     CacheItem(GC g, unsigned long p) : gc(g), pixel(p), count(0) {}
  32   };
  33   static std::map<unsigned long, CacheItem*> *_cache;
  34
  35   int _screen;
  36   unsigned char _red;
  37   unsigned char _green;
  38   unsigned char _blue;
  39
  40   mutable unsigned long _pixel;
  41   mutable GC _gc;
  42
  43   mutable bool _allocated;
  44   mutable bool _created;
  45
  46   void create() const;
  47
  48 public:
  49   static void initialize();
  50   static void destroy();
  51
  52   RenderColor(int screen, unsigned char red,
  53               unsigned char green, unsigned char blue);
  54   RenderColor(int screen, RGB rgb);
  55   virtual ~RenderColor();
  56
  57   inline int screen() const { return _screen; }
  58   inline unsigned char red() const { return _red; }
  59   inline unsigned char green() const { return _green; }
  60   inline unsigned char blue() const { return _blue; }
  61   unsigned long pixel() const;
  62   GC gc() const;
  63 };
  64
  65 }
  66
  67 #endif // __rendercolor_hh