Implement wave-style variant of underlining.

  * doc/lispref/display.texi: Document new face attribute.
  * lisp/cus-face.el (custom-face-attributes): Add wave-style underline
  attribute.
  * lisp/faces.el (set-face-attribute): Update docstring.
  * src/dispextern.h (face_underline_type): New enum.
  (face): Add field for underline type.
  * src/nsterm.m (ns_draw_underwave): New function.
  (ns_draw_text_decoration): Use it.
  * src/w32term.c (w32_restore_glyph_string_clip, w32_draw_underwave):
  New functions.
  (x_draw_glyph_string): Use them.
  * src/xfaces.c (Qline, Qwave): New Lisp objects.
  (check_lface_attrs, merge_face_ref)
  (Finternal_set_lisp_face_attribute, realize_x_face): Handle
  wave-style underline face attributes.
  * src/xterm.c (x_draw_underwave): New function.
  (x_draw_glyph_string): Use it.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 321c3b9c62f..d392dd522b3 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,20 @@
+2012-06-16  Aurelien Aptel  <aurelien.aptel@gmail.com>
+
+        Implement wave-style variant of underlining.
+        * dispextern.h (face_underline_type): New enum.
+        (face): Add field for underline type.
+        * nsterm.m (ns_draw_underwave): New function.
+        (ns_draw_text_decoration): Use it.
+        * w32term.c (w32_restore_glyph_string_clip, w32_draw_underwave):
+        New functions.
+        (x_draw_glyph_string): Use them.
+        * xfaces.c (Qline, Qwave): New Lisp objects.
+        (check_lface_attrs, merge_face_ref)
+        (Finternal_set_lisp_face_attribute, realize_x_face): Handle
+        wave-style underline face attributes.
+        * xterm.c (x_draw_underwave): New function.
+        (x_draw_glyph_string): Use it.
+
 2012-06-16  Juanma Barranquero  <lekktu@gmail.com>
 
         * makefile.w32-in ($(BLD)/emacs.$(O), $(BLD)/fringe.$(O))