(x_setup_relief_colors): Use `IMAGE_BACKGROUND' and

`IMAGE_BACKGROUND_TRANSPARENT' to calculate the correct background color
to use for image glyph reliefs.

2 files changed, 32 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 463bcdc0364..7575bb25261 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,32 @@
+2001-10-25  Miles Bader  <miles@gnu.org>
+
+        * dispextern.h (struct image): Add `background',
+        `background_valid', and `background_transparent' fields.
+        (image_background, image_background_transparent): New declarations.
+        (IMAGE_BACKGROUND, IMAGE_BACKGROUND_TRANSPARENT): New macros.
+        * xfns.c (image_background, image_background_transparent)
+        (four_corners_best): New functions.
+        (xpm_format, png_format, jpeg_format, tiff_format, gif_format) 
+        (gs_format): Add `:background' entry.
+        (lookup_image): Set IMG's background color if specified.
+        (pbm_load, xbm_load_image, png_load): Set IMG's background field
+        when appropriate.
+        (x_clear_image_1): Reset `background_valid' and
+        `background_transparent_valid' fields.
+        (x_build_heuristic_mask): Use IMAGE_BACKGROUND instead of
+        calculating it here.  Set IMG's background_transparent field.
+        (enum xpm_keyword_index): Add XPM_BACKGROUND.
+        (enum png_keyword_index): Add PNG_BACKGROUND.
+        (enum jpeg_keyword_index): Add JPEG_BACKGROUND.
+        (enum tiff_keyword_index): Add TIFF_BACKGROUND.
+        (enum gif_keyword_index): Add GIF_BACKGROUND.
+        (enum gs_keyword_index): Add GS_BACKGROUND.
+        (pbm_load, png_load, jpeg_load, tiff_load, gif_load): 
+        Pre-calculate image background color where necessary.
+        * xterm.c (x_setup_relief_colors): Use `IMAGE_BACKGROUND' and
+        `IMAGE_BACKGROUND_TRANSPARENT' to calculate the correct background
+        color to use for image glyph reliefs.
+
 2001-10-24  Gerd Moellmann  <gerd@gnu.org>
 
         * xterm.c (x_draw_glyphs): Don't check for cursor overwriting
diff --git a/src/xterm.c b/src/xterm.c
index a757caaa668..11a8e07bc4a 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -3823,6 +3823,9 @@ x_setup_relief_colors (s)
 
   if (s->face->use_box_color_for_shadows_p)
     color = s->face->box_color;
+  else if (s->first_glyph->type == IMAGE_GLYPH
+           && !IMAGE_BACKGROUND_TRANSPARENT (s->img, s->f, 0))
+    color = IMAGE_BACKGROUND (s->img, s->f, 0);
   else
     {
       XGCValues xgcv;