font.c (font_parse_xlfd): If FONT is a font-entity and pixel size in NAME is invalid...

[gnu-emacs] / src / font.h

diff --git a/src/font.h b/src/font.h
index 60525501703adecce245dca637b5bfc35034a0d8..952ea2694957dc2e484fc7174113a4ec205f1772 100644 (file)
--- a/src/font.h
+++ b/src/font.h
@@ -1,6 +1,6 @@
 /* font.h -- Interface definition for font handling.
-   Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-   Copyright (C) 2006, 2007, 2008, 2009
+   Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2007, 2008, 2009, 2010
      National Institute of Advanced Industrial Science and Technology (AIST)
      Registration Number H13PRO009
 
@@ -68,9 +68,8 @@ struct glyph_string;
 enum font_property_index
   {
     /* FONT-TYPE is a symbol indicating a font backend; currently `x',
-       `xft', `ftx' are available on X and gdi on Windows.
-       For Windows, `bdf' and `uniscribe' backends are in progress.
-       For Mac OS X, we need `atm'.  */
+       `xft', `ftx' are available on X, `uniscribe' and `gdi' on
+       Windows, and `ns' under Cocoa / GNUstep.  */
     FONT_TYPE_INDEX,
 
     /* FONT-FOUNDRY is a foundry name (symbol).  */
@@ -153,8 +152,8 @@ enum font_property_index
     /* In a font-spec, the value is an alist of extra information of a
        font such as name, OpenType features, and language coverage.
        In addition, in a font-entity, the value may contain a pair
-       (font-entity . INFO) where INFO is an extra infomation to
-       identify a font (font-driver dependent).  */
+       (font-entity . INFO) where INFO is extra information to identify
+       a font (font-driver dependent).  */
     FONT_EXTRA_INDEX,          /* alist                alist */
 
     /* This value is the length of font-spec vector.  */
@@ -170,7 +169,7 @@ enum font_property_index
 
     /* XLFD name of the font (string). */
     FONT_NAME_INDEX = FONT_ENTITY_MAX,
-    
+
     /* Full name of the font (string).  It is the name extracted from
        the opend font, and may be different from the above.  It may be
        nil if the opened font doesn't give a name.  */
@@ -241,6 +240,9 @@ extern Lisp_Object QCavgwidth, QCfont_entity, QCfc_unknown_spec;
 extern Lisp_Object Qascii_0;
 extern Lisp_Object Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip;
 
+/* Special ADSTYLE properties to avoid fonts used for Latin characters.  */
+extern Lisp_Object Qja, Qko;
+
 /* Structure for a font-spec.  */
 
 struct font_spec
@@ -499,7 +501,7 @@ struct font_driver
   /* Symbol indicating the type of the font-driver.  */
   Lisp_Object type;
 
-  /* 1 iff the font's foundary, family, and adstyle names are case
+  /* 1 iff the font's foundry, family, and adstyle names are case
      sensitve.  */
   int case_sensitive;
 
@@ -648,7 +650,7 @@ struct font_driver
      makes some data specific to F and stores it in F by calling
      font_put_frame_data ().  */
   int (*start_for_frame) P_ ((FRAME_PTR f));
-  
+
   /* Optional.
      End using the driver for frame F.  Usually this function free
      some data stored for F.  */
@@ -685,6 +687,16 @@ struct font_driver
      the (N-1)th element of VARIATIONS.  */
   int (*get_variation_glyphs) P_ ((struct font *font,
                                   int c, unsigned variations[256]));
+
+  void (*filter_properties) P_ ((Lisp_Object font, Lisp_Object properties));
+
+  /* Optional.
+
+     Return non-zero if FONT_OBJECT can be used as a (cached) font
+     for ENTITY on frame F.  */
+  int (*cached_font_ok) P_ ((struct frame *f,
+                             Lisp_Object font_object,
+                             Lisp_Object entity));
 };
 
 
@@ -739,7 +751,7 @@ extern int font_style_to_value P_ ((enum font_property_index prop,
 extern Lisp_Object font_style_symbolic P_ ((Lisp_Object font,
                                            enum font_property_index prop,
                                            int for_face));
-                           
+
 extern int font_match_p P_ ((Lisp_Object spec, Lisp_Object font));
 extern Lisp_Object font_list_entities P_ ((Lisp_Object frame,
                                           Lisp_Object spec));
@@ -763,6 +775,7 @@ extern Lisp_Object font_load_for_lface P_ ((FRAME_PTR f, Lisp_Object *lface,
 extern void font_prepare_for_face P_ ((FRAME_PTR f, struct face *face));
 extern void font_done_for_face P_ ((FRAME_PTR f, struct face *face));
 
+extern Lisp_Object font_open_by_spec P_ ((FRAME_PTR f, Lisp_Object spec));
 extern Lisp_Object font_open_by_name P_ ((FRAME_PTR f, char *name));
 extern void font_close_object (FRAME_PTR f, Lisp_Object font_object);
 
@@ -823,9 +836,22 @@ extern struct font_driver nsfont_driver;
 #define FONT_DEBUG
 #endif
 
+extern Lisp_Object Vfont_log;
 extern void font_add_log P_ ((char *, Lisp_Object, Lisp_Object));
 extern void font_deferred_log P_ ((char *, Lisp_Object, Lisp_Object));
 
+#define FONT_ADD_LOG(ACTION, ARG, RESULT)      \
+  do {                                         \
+    if (! EQ (Vfont_log, Qt))                  \
+      font_add_log ((ACTION), (ARG), (RESULT));        \
+  } while (0)
+
+#define FONT_DEFERRED_LOG(ACTION, ARG, RESULT)         \
+  do {                                                 \
+    if (! EQ (Vfont_log, Qt))                          \
+      font_deferred_log ((ACTION), (ARG), (RESULT));   \
+  } while (0)
+
 #ifdef FONT_DEBUG
 #define font_assert(X) do {if (!(X)) abort ();} while (0)
 #else  /* not FONT_DEBUG */