Dogcows Code - chaz/openbox/blob - otk_c/gccache.h

   1 // -*- mode: C; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef __gccache_h
   3 #define __gccache_h
   4
   5 #include <X11/Xlib.h>
   6
   7 #include "display.h"
   8 #include "color.h"
   9
  10 struct OtkGCCacheItem;
  11
  12 typedef struct OtkGCCacheContext {
  13   GC gc;
  14   unsigned long pixel;
  15   unsigned long fontid;
  16   int function;
  17   int subwindow;
  18   Bool used;
  19   int screen;
  20   int linewidth;
  21 } OtkGCCacheContext;
  22
  23 OtkGCCacheContext *OtkGCCacheContext_New();
  24 void OtkGCCacheContext_Destroy(OtkGCCacheContext *self);
  25
  26 void OtkGCCacheContext_Set(OtkGCCacheContext *self,
  27                            OtkColor *color, XFontStruct *font,
  28                            int function, int subwindow, int linewidth);
  29 void OtkGCCacheContext_SetFont(OtkGCCacheContext *self,
  30                                XFontStruct *font);
  31
  32
  33 typedef struct OtkGCCacheItem {
  34   OtkGCCacheContext *ctx;
  35   unsigned int count;
  36   unsigned int hits;
  37   Bool fault;
  38 } OtkGCCacheItem;
  39
  40 OtkGCCacheItem *OtkGCCacheItem_New();
  41
  42
  43 typedef struct OtkGCCache {
  44   // this is closely modelled after the Qt GC cache, but with some of the
  45   // complexity stripped out
  46   unsigned int context_count;
  47   unsigned int cache_size;
  48   unsigned int cache_buckets;
  49   unsigned int cache_total_size;
  50   OtkGCCacheContext **contexts;
  51   OtkGCCacheItem **cache;
  52 } OtkGCCache;
  53
  54 void OtkGCCache_Initialize();
  55 //void OtkGCCache_Destroy();
  56
  57 // cleans up the cache
  58 void OtkGCCache_Purge();
  59
  60 OtkGCCacheItem *OtkGCCache_Find(OtkColor *color,
  61                                 XFontStruct *font, int function,
  62                                 int subwindow, int linewidth);
  63 void OtkGCCache_Release(OtkGCCacheItem *item);
  64
  65
  66 /*
  67
  68
  69 class BPen {
  70 public:
  71   inline BPen(const BColor &_color,  const XFontStruct * const _font = 0,
  72               int _linewidth = 0, int _function = GXcopy,
  73               int _subwindow = ClipByChildren)
  74     : color(_color), font(_font), linewidth(_linewidth), function(_function),
  75       subwindow(_subwindow), cache(OBDisplay::gcCache()), item(0) { }
  76
  77   inline ~BPen(void) { if (item) cache->release(item); }
  78
  79   inline const GC &gc(void) const {
  80     if (! item) item = cache->find(color, font, function, subwindow,
  81                                    linewidth);
  82     return item->gc();
  83   }
  84
  85 private:
  86   const BColor &color;
  87   const XFontStruct *font;
  88   int linewidth;
  89   int function;
  90   int subwindow;
  91
  92   mutable BGCCache *cache;
  93   mutable BGCCacheItem *item;
  94 };
  95
  96 }*/
  97
  98 #endif // __gccache_h