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[Emacs-diffs] master 41e20ee 4/7: Add terminal hook defined_color_hook


From: Alexander Gramiak
Subject: [Emacs-diffs] master 41e20ee 4/7: Add terminal hook defined_color_hook
Date: Fri, 26 Apr 2019 18:59:16 -0400 (EDT)

branch: master
commit 41e20ee4bc01576d23fb8fd4f875385ce57eb36a
Author: Alexander Gramiak <address@hidden>
Commit: Alexander Gramiak <address@hidden>

    Add terminal hook defined_color_hook
    
    * src/termhooks.h (defined_color_hook): New terminal hook.
    
    * src/xterm.c:
    * src/nsterm.m:
    * src/term.c:
    * src/w32term.c: Set defined_color_hook.
    
    * src/xfaces.c: Use defined_color_hook.
    (defined_color): Remove.
    
    * src/image.c: Remove redefinitions of x_defined_color, and use
    defined_color_hook.
---
 src/dispextern.h |  3 +++
 src/image.c      | 50 ++++++++++++++++++++++++++++++++++--------------
 src/nsterm.m     |  1 +
 src/term.c       |  2 ++
 src/termhooks.h  | 12 ++++++++++++
 src/w32fns.c     | 10 +++++-----
 src/w32term.c    |  5 +++--
 src/w32term.h    |  4 ++--
 src/xfaces.c     | 58 +++++++++++++++++++-------------------------------------
 src/xfns.c       |  8 ++++----
 src/xterm.c      |  1 +
 src/xterm.h      |  2 +-
 12 files changed, 89 insertions(+), 67 deletions(-)

diff --git a/src/dispextern.h b/src/dispextern.h
index 6c1cdf3..4d6d037 100644
--- a/src/dispextern.h
+++ b/src/dispextern.h
@@ -3413,6 +3413,9 @@ void x_free_colors (struct frame *, unsigned long *, int);
 
 void update_face_from_frame_parameter (struct frame *, Lisp_Object,
                                        Lisp_Object);
+extern bool tty_defined_color (struct frame *f, const char *, XColor *, bool,
+                               bool);
+
 Lisp_Object tty_color_name (struct frame *, int);
 void clear_face_cache (bool);
 unsigned long load_color (struct frame *, struct face *, Lisp_Object,
diff --git a/src/image.c b/src/image.c
index 1cf90c8..0023b93 100644
--- a/src/image.c
+++ b/src/image.c
@@ -89,8 +89,6 @@ typedef struct w32_bitmap_record Bitmap_Record;
 #define PIX_MASK_RETAIN        0
 #define PIX_MASK_DRAW  1
 
-#define x_defined_color w32_defined_color
-
 #endif /* HAVE_NTGUI */
 
 #ifdef HAVE_NS
@@ -101,8 +99,6 @@ typedef struct ns_bitmap_record Bitmap_Record;
 
 #define PIX_MASK_RETAIN        0
 
-#define x_defined_color(f, name, color_def, alloc) \
-  ns_defined_color (f, name, color_def, alloc, 0)
 #endif /* HAVE_NS */
 
 #if (defined HAVE_X_WINDOWS \
@@ -1424,7 +1420,11 @@ image_alloc_image_color (struct frame *f, struct image 
*img,
 
   eassert (STRINGP (color_name));
 
-  if (x_defined_color (f, SSDATA (color_name), &color, 1)
+  if (FRAME_TERMINAL (f)->defined_color_hook (f,
+                                              SSDATA (color_name),
+                                              &color,
+                                              true,
+                                              false)
       && img->ncolors < min (min (PTRDIFF_MAX, SIZE_MAX) / sizeof *img->colors,
                             INT_MAX))
     {
@@ -4470,8 +4470,8 @@ xpm_load_image (struct frame *f,
            {
              if (xstrcasecmp (SSDATA (XCDR (specified_color)), "None") == 0)
                color_val = Qt;
-             else if (x_defined_color (f, SSDATA (XCDR (specified_color)),
-                                       &cdef, 0))
+             else if (FRAME_TERMINAL (f)->defined_color_hook
+                       (f, SSDATA (XCDR (specified_color)), &cdef, false, 
false))
                color_val = make_fixnum (cdef.pixel);
            }
        }
@@ -4479,7 +4479,8 @@ xpm_load_image (struct frame *f,
        {
          if (xstrcasecmp (max_color, "None") == 0)
            color_val = Qt;
-         else if (x_defined_color (f, max_color, &cdef, 0))
+         else if (FRAME_TERMINAL (f)->defined_color_hook
+                   (f, max_color, &cdef, false, false))
            color_val = make_fixnum (cdef.pixel);
        }
       if (!NILP (color_val))
@@ -5681,7 +5682,11 @@ pbm_load (struct frame *f, struct image *img)
 #ifdef USE_CAIRO
       if (! fmt[PBM_FOREGROUND].count
           || ! STRINGP (fmt[PBM_FOREGROUND].value)
-          || ! x_defined_color (f, SSDATA (fmt[PBM_FOREGROUND].value), &xfg, 
0))
+          || ! FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                       SSDATA 
(fmt[PBM_FOREGROUND].value),
+                                                       &xfg,
+                                                       false,
+                                                       false))
         {
           xfg.pixel = fg;
           x_query_colors (f, &xfg, 1);
@@ -5690,7 +5695,11 @@ pbm_load (struct frame *f, struct image *img)
 
       if (! fmt[PBM_BACKGROUND].count
           || ! STRINGP (fmt[PBM_BACKGROUND].value)
-          || ! x_defined_color (f, SSDATA (fmt[PBM_BACKGROUND].value), &xbg, 
0))
+          || ! FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                       SSDATA 
(fmt[PBM_BACKGROUND].value),
+                                                       &xbg,
+                                                       false,
+                                                       false))
        {
           xbg.pixel = bg;
           x_query_colors (f, &xbg, 1);
@@ -6349,7 +6358,11 @@ png_load_body (struct frame *f, struct image *img, 
struct png_load_context *c)
         current frame background, ignoring any default background
         color set by the image.  */
       if (STRINGP (specified_bg)
-         ? x_defined_color (f, SSDATA (specified_bg), &color, false)
+         ? FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                    SSDATA (specified_bg),
+                                                    &color,
+                                                    false,
+                                                    false)
          : (image_query_frame_background_color (f, &color), true))
        /* The user specified `:background', use that.  */
        {
@@ -8036,7 +8049,8 @@ gif_load (struct frame *f, struct image *img)
   if (STRINGP (specified_bg))
     {
       XColor color;
-      if (x_defined_color (f, SSDATA (specified_bg), &color, 0))
+      if (FRAME_TERMINAL (f)->defined_color_hook
+          (f, SSDATA (specified_bg), &color, false, false))
         {
           uint32_t *dataptr = data32;
           int r = color.red/256;
@@ -8797,7 +8811,11 @@ imagemagick_load_image (struct frame *f, struct image 
*img,
 
     specified_bg = image_spec_value (img->spec, QCbackground, NULL);
     if (!STRINGP (specified_bg)
-       || !x_defined_color (f, SSDATA (specified_bg), &bgcolor, 0))
+       || !FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                    SSDATA (specified_bg),
+                                                    &bgcolor,
+                                                    false,
+                                                    false))
       image_query_frame_background_color (f, &bgcolor);
 
     bg_wand = NewPixelWand ();
@@ -9532,7 +9550,11 @@ svg_load_image (struct frame *f, struct image *img, char 
*contents,
     XColor background;
     Lisp_Object specified_bg = image_spec_value (img->spec, QCbackground, 
NULL);
     if (!STRINGP (specified_bg)
-       || !x_defined_color (f, SSDATA (specified_bg), &background, 0))
+       || !FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                    SSDATA (specified_bg),
+                                                    &background,
+                                                    false,
+                                                    false))
       image_query_frame_background_color (f, &background);
 
     /* SVG pixmaps specify transparency in the last byte, so right
diff --git a/src/nsterm.m b/src/nsterm.m
index ae49b65..1217eb8 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -5232,6 +5232,7 @@ ns_create_terminal (struct ns_display_info *dpyinfo)
   terminal->update_end_hook = ns_update_end;
   terminal->read_socket_hook = ns_read_socket;
   terminal->frame_up_to_date_hook = ns_frame_up_to_date;
+  terminal->defined_color_hook = ns_defined_color;
   terminal->mouse_position_hook = ns_mouse_position;
   terminal->get_focus_frame = ns_get_focus_frame;
   terminal->focus_frame_hook = ns_focus_frame;
diff --git a/src/term.c b/src/term.c
index 2de0a0e..6a8fc2e 100644
--- a/src/term.c
+++ b/src/term.c
@@ -3838,6 +3838,7 @@ clear_tty_hooks (struct terminal *terminal)
   terminal->update_begin_hook = 0;
   terminal->update_end_hook = 0;
   terminal->set_terminal_window_hook = 0;
+  terminal->defined_color_hook = 0;
   terminal->mouse_position_hook = 0;
   terminal->frame_rehighlight_hook = 0;
   terminal->frame_raise_lower_hook = 0;
@@ -3881,6 +3882,7 @@ set_tty_hooks (struct terminal *terminal)
   terminal->menu_show_hook = &tty_menu_show;
 #endif
   terminal->set_terminal_window_hook = &tty_set_terminal_window;
+  terminal->defined_color_hook = &tty_defined_color; /* xfaces.c */
   terminal->read_socket_hook = &tty_read_avail_input; /* keyboard.c */
   terminal->delete_frame_hook = &tty_free_frame_resources;
   terminal->delete_terminal_hook = &delete_tty;
diff --git a/src/termhooks.h b/src/termhooks.h
index b66233c..fbc3726 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -24,6 +24,7 @@ along with GNU Emacs.  If not, see 
<https://www.gnu.org/licenses/>.  */
 /* Miscellanea.   */
 
 #include "lisp.h"
+#include "dispextern.h"
 #include "systime.h" /* for Time */
 
 struct glyph;
@@ -488,6 +489,17 @@ struct terminal
   void (*update_end_hook) (struct frame *);
   void (*set_terminal_window_hook) (struct frame *, int);
 
+  /* Decide if color named COLOR_NAME is valid for the display
+   associated with the frame F; if so, return the RGB values in
+   COLOR_DEF.  If ALLOC (and MAKEINDEX for NS), allocate a new
+   colormap cell.
+
+   If MAKEINDEX (on NS), set COLOR_DEF pixel to ARGB.  */
+  bool (*defined_color_hook) (struct frame *f, const char *color_name,
+                              XColor *color_def,
+                              bool alloc,
+                              bool makeIndex);
+
   /* Multi-frame and mouse support hooks.  */
 
   /* Graphical window systems are expected to define all of the
diff --git a/src/w32fns.c b/src/w32fns.c
index 30e5479..525642b 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -1173,9 +1173,9 @@ gamma_correct (struct frame *f, COLORREF *color)
    the selected frame; if so, return the rgb values in COLOR_DEF.
    If ALLOC is nonzero, allocate a new colormap cell.  */
 
-int
+bool
 w32_defined_color (struct frame *f, const char *color, XColor *color_def,
-                  bool alloc_p)
+                  bool alloc_p, bool _makeIndex)
 {
   register Lisp_Object tem;
   COLORREF w32_color_ref;
@@ -1262,7 +1262,7 @@ w32_decode_color (struct frame *f, Lisp_Object arg, int 
def)
 
   /* w32_defined_color is responsible for coping with failures
      by looking for a near-miss.  */
-  if (w32_defined_color (f, SSDATA (arg), &cdef, true))
+  if (w32_defined_color (f, SSDATA (arg), &cdef, true, false))
     return cdef.pixel;
 
   /* defined_color failed; return an ultimate default.  */
@@ -6105,7 +6105,7 @@ DEFUN ("xw-color-defined-p", Fxw_color_defined_p, 
Sxw_color_defined_p, 1, 2, 0,
 
   CHECK_STRING (color);
 
-  if (w32_defined_color (f, SSDATA (color), &foo, false))
+  if (w32_defined_color (f, SSDATA (color), &foo, false, false))
     return Qt;
   else
     return Qnil;
@@ -6120,7 +6120,7 @@ DEFUN ("xw-color-values", Fxw_color_values, 
Sxw_color_values, 1, 2, 0,
 
   CHECK_STRING (color);
 
-  if (w32_defined_color (f, SSDATA (color), &foo, false))
+  if (w32_defined_color (f, SSDATA (color), &foo, false, false))
     return list3i ((GetRValue (foo.pixel) << 8) | GetRValue (foo.pixel),
                   (GetGValue (foo.pixel) << 8) | GetGValue (foo.pixel),
                   (GetBValue (foo.pixel) << 8) | GetBValue (foo.pixel));
diff --git a/src/w32term.c b/src/w32term.c
index fca1ef9..9d05098 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -7159,6 +7159,7 @@ w32_create_terminal (struct w32_display_info *dpyinfo)
   terminal->update_end_hook = w32_update_end;
   terminal->read_socket_hook = w32_read_socket;
   terminal->frame_up_to_date_hook = w32_frame_up_to_date;
+  terminal->defined_color_hook = w32_defined_color;
   terminal->query_colors = w32_query_colors;
   terminal->mouse_position_hook = w32_mouse_position;
   terminal->get_focus_frame = w32_get_focus_frame;
@@ -7262,8 +7263,8 @@ w32_term_init (Lisp_Object display_name, char 
*xrm_option, char *resource_name)
   /* initialize palette with white and black */
   {
     XColor color;
-    w32_defined_color (0, "white", &color, 1);
-    w32_defined_color (0, "black", &color, 1);
+    w32_defined_color (0, "white", &color, true, false);
+    w32_defined_color (0, "black", &color, true, false);
   }
 
 #ifdef WINDOWSNT
diff --git a/src/w32term.h b/src/w32term.h
index 6d27659..d5bb08d 100644
--- a/src/w32term.h
+++ b/src/w32term.h
@@ -241,8 +241,8 @@ extern void w32_set_scroll_bar_default_height (struct frame 
*);
 
 extern struct w32_display_info *w32_term_init (Lisp_Object,
                                               char *, char *);
-extern int w32_defined_color (struct frame *f, const char *color,
-                              XColor *color_def, bool alloc_p);
+extern bool w32_defined_color (struct frame *, const char *, XColor *,
+                               bool, bool);
 extern int w32_display_pixel_height (struct w32_display_info *);
 extern int w32_display_pixel_width (struct w32_display_info *);
 extern void initialize_frame_menubar (struct frame *);
diff --git a/src/xfaces.c b/src/xfaces.c
index 925c3d5..7e04c0e 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -893,11 +893,11 @@ tty_lookup_color (struct frame *f, Lisp_Object color, 
XColor *tty_color,
     return false;
 }
 
-/* A version of defined_color for non-X frames.  */
+/* An implementation of defined_color_hook for tty frames.  */
 
-static bool
+bool
 tty_defined_color (struct frame *f, const char *color_name,
-                  XColor *color_def, bool alloc)
+                  XColor *color_def, bool alloc, bool _makeIndex)
 {
   bool status = true;
 
@@ -924,36 +924,6 @@ tty_defined_color (struct frame *f, const char *color_name,
   return status;
 }
 
-
-/* Decide if color named COLOR_NAME is valid for the display
-   associated with the frame F; if so, return the rgb values in
-   COLOR_DEF.  If ALLOC, allocate a new colormap cell.
-
-   This does the right thing for any type of frame.  */
-
-static bool
-defined_color (struct frame *f, const char *color_name, XColor *color_def,
-              bool alloc)
-{
-  if (!FRAME_WINDOW_P (f))
-    return tty_defined_color (f, color_name, color_def, alloc);
-#ifdef HAVE_X_WINDOWS
-  else if (FRAME_X_P (f))
-    return x_defined_color (f, color_name, color_def, alloc);
-#endif
-#ifdef HAVE_NTGUI
-  else if (FRAME_W32_P (f))
-    return w32_defined_color (f, color_name, color_def, alloc);
-#endif
-#ifdef HAVE_NS
-  else if (FRAME_NS_P (f))
-    return ns_defined_color (f, color_name, color_def, alloc, true);
-#endif
-  else
-    emacs_abort ();
-}
-
-
 /* Given the index IDX of a tty color on frame F, return its name, a
    Lisp string.  */
 
@@ -998,7 +968,8 @@ face_color_gray_p (struct frame *f, const char *color_name)
   XColor color;
   bool gray_p;
 
-  if (defined_color (f, color_name, &color, false))
+  if (FRAME_TERMINAL (f)->defined_color_hook
+      (f, color_name, &color, false, true))
     gray_p = (/* Any color sufficiently close to black counts as gray.  */
              (color.red < 5000 && color.green < 5000 && color.blue < 5000)
              ||
@@ -1038,7 +1009,7 @@ face_color_supported_p (struct frame *f, const char 
*color_name,
           && face_color_gray_p (f, color_name)))
     :
 #endif
-    tty_defined_color (f, color_name, &not_used, false);
+    tty_defined_color (f, color_name, &not_used, false, false);
 }
 
 
@@ -1082,9 +1053,10 @@ load_color2 (struct frame *f, struct face *face, 
Lisp_Object name,
           || target_index == LFACE_STRIKE_THROUGH_INDEX
           || target_index == LFACE_BOX_INDEX);
 
-  /* if the color map is full, defined_color will return a best match
+  /* if the color map is full, defined_color_hook will return a best match
      to the values in an existing cell. */
-  if (!defined_color (f, SSDATA (name), color, true))
+  if (!FRAME_TERMINAL (f)->defined_color_hook
+      (f, SSDATA (name), color, true, true))
     {
       add_to_log ("Unable to load color \"%s\"", name);
 
@@ -4235,11 +4207,19 @@ two lists of the form (RED GREEN BLUE) aforementioned. 
*/)
 
   if (!(CONSP (color1) && parse_rgb_list (color1, &cdef1))
       && !(STRINGP (color1)
-          && defined_color (f, SSDATA (color1), &cdef1, false)))
+           && FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                      SSDATA (color1),
+                                                      &cdef1,
+                                                      false,
+                                                      true)))
     signal_error ("Invalid color", color1);
   if (!(CONSP (color2) && parse_rgb_list (color2, &cdef2))
       && !(STRINGP (color2)
-          && defined_color (f, SSDATA (color2), &cdef2, false)))
+           && FRAME_TERMINAL (f)->defined_color_hook (f,
+                                                      SSDATA (color2),
+                                                      &cdef2,
+                                                      false,
+                                                      true)))
     signal_error ("Invalid color", color2);
 
   if (NILP (metric))
diff --git a/src/xfns.c b/src/xfns.c
index c4bdb3f..2ceb55a 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -653,7 +653,7 @@ gamma_correct (struct frame *f, XColor *color)
 
 bool
 x_defined_color (struct frame *f, const char *color_name,
-                XColor *color, bool alloc_p)
+                XColor *color, bool alloc_p, bool _makeIndex)
 {
   bool success_p = false;
   Colormap cmap = FRAME_X_COLORMAP (f);
@@ -698,7 +698,7 @@ x_decode_color (struct frame *f, Lisp_Object color_name, 
int mono_color)
 
   /* x_defined_color is responsible for coping with failures
      by looking for a near-miss.  */
-  if (x_defined_color (f, SSDATA (color_name), &cdef, true))
+  if (x_defined_color (f, SSDATA (color_name), &cdef, true, false))
     return cdef.pixel;
 
   signal_error ("Undefined color", color_name);
@@ -4110,7 +4110,7 @@ DEFUN ("xw-color-defined-p", Fxw_color_defined_p, 
Sxw_color_defined_p, 1, 2, 0,
 
   CHECK_STRING (color);
 
-  if (x_defined_color (f, SSDATA (color), &foo, false))
+  if (x_defined_color (f, SSDATA (color), &foo, false, false))
     return Qt;
   else
     return Qnil;
@@ -4126,7 +4126,7 @@ DEFUN ("xw-color-values", Fxw_color_values, 
Sxw_color_values, 1, 2, 0,
 
   CHECK_STRING (color);
 
-  if (x_defined_color (f, SSDATA (color), &foo, false))
+  if (x_defined_color (f, SSDATA (color), &foo, false, false))
     return list3i (foo.red, foo.green, foo.blue);
   else
     return Qnil;
diff --git a/src/xterm.c b/src/xterm.c
index a89f139..d65ad98 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -13271,6 +13271,7 @@ x_create_terminal (struct x_display_info *dpyinfo)
   terminal->read_socket_hook = XTread_socket;
   terminal->frame_up_to_date_hook = XTframe_up_to_date;
   terminal->buffer_flipping_unblocked_hook = XTbuffer_flipping_unblocked_hook;
+  terminal->defined_color_hook = x_defined_color;
   terminal->query_colors = x_query_colors;
   terminal->mouse_position_hook = XTmouse_position;
   terminal->get_focus_frame = x_get_focus_frame;
diff --git a/src/xterm.h b/src/xterm.h
index 20d043e..f4007d6 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -1222,7 +1222,7 @@ extern void destroy_frame_xic (struct frame *);
 extern void xic_set_preeditarea (struct window *, int, int);
 extern void xic_set_statusarea (struct frame *);
 extern void xic_set_xfontset (struct frame *, const char *);
-extern bool x_defined_color (struct frame *, const char *, XColor *, bool);
+extern bool x_defined_color (struct frame *, const char *, XColor *, bool, 
bool);
 #ifdef HAVE_X_I18N
 extern void free_frame_xic (struct frame *);
 # if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT



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