Zen Emacs

Here's a quick patch to set a pleasant background (PNG image) in Emacs. This needs GTK with cairo build (you need the cairo API cairo_image_surface_create_from_png()).

 

 

 

modified   src/xterm.c
@@ -408,6 +408,8 @@ x_end_cr_clip (struct frame *f)
     x_mark_frame_dirty (f);
 }
 
+static cairo_surface_t *image;
+
 void
 x_set_cr_source_with_gc_foreground (struct frame *f, GC gc)
 {
@@ -432,6 +434,10 @@ x_set_cr_source_with_gc_background (struct frame *f, GC gc)
   x_query_colors (f, &color, 1);
   cairo_set_source_rgb (FRAME_CR_CONTEXT (f), color.red / 65535.0,
             color.green / 65535.0, color.blue / 65535.0);
+
+  if (!image)
+     image = cairo_image_surface_create_from_png ("/home/anand/back.png");
+  cairo_set_source_surface(FRAME_CR_CONTEXT (f), image, 0, 0);
 }
 
 static const cairo_user_data_key_t xlib_surface_key, saved_drawable_key;

Emacs uses the foreground and background colors defined for faces. This includes highlighted text (mouse and region faces). If you want to use a different background from the face definition, you need to ensure you only draw that when face background color is same as graphics context background.