From c54277d9b1a888d467d839444d2de62e5f3702fc Mon Sep 17 00:00:00 2001
From: handa <handa>
Date: Sat, 13 Mar 2004 00:20:30 +0000
Subject: [PATCH] *** empty log message ***

---
 src/m17n-X.c |   49 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 45 insertions(+), 4 deletions(-)

diff --git a/src/m17n-X.c b/src/m17n-X.c
index 7ef4b42..d8a1aa2 100644
--- a/src/m17n-X.c
+++ b/src/m17n-X.c
@@ -84,6 +84,12 @@ typedef struct
 /* Anchor of the chain of MDisplayInfo objects.  */
 static MPlist *display_info_list;
 
+typedef struct
+{
+  unsigned short r, g, b;
+  GC gc;
+} MColorGC;
+
 struct MWDevice
 {
   /* Common header for the m17n object.  */
@@ -107,6 +113,8 @@ struct MWDevice
   /** List of pointers to realized fontsets on the frame.  */
   MPlist *realized_fontset_list;
 
+  /** List of XColors vs GCs on the frame.  */
+  MPlist *gc_list;
 };
 
 static MPlist *device_list;
@@ -1389,6 +1397,39 @@ struct {
   } while (0)
 
 
+static GC
+get_gc (MWDevice *device, XColor *color)
+{
+  MPlist *plist;
+  unsigned long valuemask = GCForeground;
+  XGCValues values;
+  GC gc;
+  MColorGC *color_gc;
+
+  MPLIST_DO (plist, device->gc_list)
+    {
+      color_gc = MPLIST_VAL (plist);
+
+      if (color->red == color_gc->r
+	  && color->green == color_gc->g
+	  && color->blue == color_gc->b)
+	return color_gc->gc;
+    }
+  if (! XAllocColor (device->display_info->display, device->cmap, color))
+    return DefaultGC (device->display_info->display, device->screen_num);
+  values.foreground = color->pixel;
+  gc = XCreateGC (device->display_info->display, device->drawable,
+		  valuemask, &values);
+  color_gc = malloc (sizeof (MColorGC));
+  color_gc->r = color->red;
+  color_gc->g = color->green;
+  color_gc->b = color->blue;
+  color_gc->gc = gc;
+  mplist_push (plist, Mt, color_gc);
+  return gc;
+}
+
+
 void
 mwin__realize_face (MRealizedFace *rface)
 {
@@ -1722,12 +1763,12 @@ mwin__draw_pixmap (MFrame *frame, MDrawWindow win, MRealizedFace *rface,
     for (j = 0; j < width; j++)
       if (pmp[j])
 	{
-	  float ratio = (float) (pmp[j] >> 5) / 32;
+	  int fore_ratio = pmp[j] >> 5, back_ratio = 7 - fore_ratio;
 	  
 	  color = fore_color;
-	  color.red = fore_color.red * ratio + back_color.red * (1 - ratio);
-	  color.green = fore_color.green * ratio + back_color.green * (1 - ratio);
-	  color.blue = fore_color.blue * ratio + back_color.blue * (1 - ratio);
+	  color.red = ((fore_color.red * fore_ratio) + (back_color.red * back_ratio)) / 7;
+	  color.green = ((fore_color.green * fore_ratio) + (back_color.green * back_ratio)) / 7;
+	  color.blue = ((fore_color.blue * fore_ratio) + (back_color.blue * back_ratio)) / 7;
 	  if (XAllocColor (FRAME_DISPLAY (frame), frame->device->cmap, &color)
 	      && fore_color.pixel != color.pixel)
 	    {
-- 
1.7.10.4