* macfns.c (validate_x_resource_name): Use SSET.

[bpt/emacs.git] / src / fontset.h

diff --git a/src/fontset.h b/src/fontset.h
index 7e99913..1a920ac 100644 (file)
--- a/src/fontset.h
+++ b/src/fontset.h
@@ -1,5 +1,5 @@
 /* Header for fontset handler.
 /* Header for fontset handler.

-   Copyright (C) 1995, 1997 Electrotechnical Laboratory, JAPAN.
+   Copyright (C) 1995, 1997, 2000 Electrotechnical Laboratory, JAPAN.

    Licensed to the Free Software Foundation.
 
 This file is part of GNU Emacs.
    Licensed to the Free Software Foundation.
 
 This file is part of GNU Emacs.


@@ -19,12 +19,8 @@ along with GNU Emacs; see the file COPYING.  If not, write to
 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 

-#ifndef _FONTSET_H
-#define _FONTSET_H
-
-/* 
-
-#define GENERIC_FONT_PTR void
+#ifndef EMACS_FONTSET_H
+#define EMACS_FONTSET_H

 
 /* This data type is used for the font_table field of window system
    depending data area (e.g. struct x_display_info on X window).  */
 
 /* This data type is used for the font_table field of window system
    depending data area (e.g. struct x_display_info on X window).  */


@@ -47,15 +43,25 @@ struct font_info
   /* Charset of characters displayed by the font.  */
   int charset;
 
   /* Charset of characters displayed by the font.  */
   int charset;
 

+#ifdef WINDOWSNT
+  /* Codepage of characters that will be displayed by the font.  */
+  int codepage;
+#endif
+

   /* Maximum bound width over all existing characters of the font.  On
      X window, this is same as (font->max_bounds.width) */
   int size;
 
   /* Maximum bound width over all existing characters of the font.  On
      X window, this is same as (font->max_bounds.width) */
   int size;
 

-  /* Height of the font.  On X window, this is same as (font->ascent
-     + font->descent).  */
+  /* Height of the font.  On X window, this is the same as
+     (font->ascent + font->descent).  */

   int height;
 
   int height;
 

-  /* Encodings of the font indexed by CHARSET.  The value an integer
+  /* 1 iff `vertical-centering-font-regexp' matches this font name.
+     In this case, we render characters at vartical center positions
+     of lines.  */
+  int vertical_centering;
+
+  /* Encodings of the font indexed by CHARSET.  The value is one of

      0, 1, 2, or 3:
        0: code points 0x20..0x7F or 0x2020..0x7F7F are used
        1: code points 0xA0..0xFF or 0xA0A0..0xFFFF are used
      0, 1, 2, or 3:
        0: code points 0x20..0x7F or 0x2020..0x7F7F are used
        1: code points 0xA0..0xFF or 0xA0A0..0xFFFF are used


@@ -69,7 +75,10 @@ struct font_info
      consult `font-encoding-alist' to get of the corresponding charset
      whose default value is defined in lisp/fontset.el.  Since there's
      no charset whose id is 1, we use encoding[1] to store the
      consult `font-encoding-alist' to get of the corresponding charset
      whose default value is defined in lisp/fontset.el.  Since there's
      no charset whose id is 1, we use encoding[1] to store the

-     encoding information decided by the font itself.  */
+     encoding information decided by the font itself.
+
+     If the member `font_encoder' is not NULL, this member is ignored.
+  */

   unsigned char encoding[MAX_CHARSET + 1];
 
   /* The baseline position of a font is normally `ascent' value of the
   unsigned char encoding[MAX_CHARSET + 1];
 
   /* The baseline position of a font is normally `ascent' value of the


@@ -125,50 +134,13 @@ struct font_info
   struct ccl_program *font_encoder;
 };
 
   struct ccl_program *font_encoder;
 };
 

-/* A value which may appear in the member encoding of struch font_info
-   indicating that a font itself doesn't tell which encoding to be
-   used.  */
-#define FONT_ENCODING_NOT_DECIDED 4
-
-#define FONT_NOT_OPENED -1
-#define FONT_NOT_FOUND  -2
-
-struct fontset_info
-{
-  /* Name of the fontset.  */
-  char *name;
-
-  /* Size of the fontset.  This is the same as the size of ASCII font
-     of this fontset.  */
-  int size;
-
-  /* Height of the tallest font in the fontset.  */
-  int height;
-
-  /* Table of font name for each character set.  */
-  char *fontname[MAX_CHARSET + 1];
-
-  /* Table of index numbers of fonts indexed by charset.  If a font is
-     not yet loaded, the value is -1 (FONT_NOT_OPENED).  If font
-     loading is failed, the value is -2 (FONT_NOT_FOUND).  */
-  int font_indexes[MAX_CHARSET + 1];
-};
-
-/* This data type is used for the fontset_data field of struct frame.  */
-
-struct fontset_data
-{
-  /* A table of pointers to all the fontsets.  */
-  struct fontset_info **fontset_table;
-
-  /* The current capacity of fontset_table.  */
-  int fontset_table_size;
+/* A value which may appear in the member `encoding' of struch
+   font_info indicating that a font itself doesn't tell which encoding
+   to be used.  */
+#define FONT_ENCODING_NOT_DECIDED 255

 
 

-  /* The number of fontsets actually stored in fontset_table.
-     fontset_table[n] is used and valid iff 0 <= n < n_fontsets.
-     0 <= n_fontsets <= fontset_table_size.  */
-  int n_fontsets;
-};
+/* Forward declaration for prototypes.  */
+struct frame;

 
 /* The following six are window system dependent functions.
    Initialization routine of each window system should set appropriate
 
 /* The following six are window system dependent functions.
    Initialization routine of each window system should set appropriate


@@ -176,40 +148,91 @@ struct fontset_data
    x_term_init does this.  */
 
 /* Return a pointer to struct font_info of font FONT_IDX of frame F.  */
    x_term_init does this.  */
 
 /* Return a pointer to struct font_info of font FONT_IDX of frame F.  */

-extern struct font_info *(*get_font_info_func) (/* FRAME_PTR f;
-                                                   int font_idx */);
+extern struct font_info *(*get_font_info_func) P_ ((struct frame *f,
+                                                   int font_idx));

 
 /* Return a list of font names which matches PATTERN.  See the document of
    `x-list-fonts' for more detail.  */
 
 /* Return a list of font names which matches PATTERN.  See the document of
    `x-list-fonts' for more detail.  */

-extern Lisp_Object (*list_fonts_func) (/* Lisp_Object pattern, face, frame,
-                                         width */);
+extern Lisp_Object (*list_fonts_func) P_ ((struct frame *f,
+                                          Lisp_Object pattern,
+                                          int size,
+                                          int maxnames));

 
 /* Load a font named NAME for frame F and return a pointer to the
    information of the loaded font.  If loading is failed, return -1.  */
 
 /* Load a font named NAME for frame F and return a pointer to the
    information of the loaded font.  If loading is failed, return -1.  */

-extern struct font_info *(*load_font_func) (/* FRAME_PTR f; char *name */);
+extern struct font_info *(*load_font_func) P_ ((struct frame *f,
+                                               char *name, int));

 
 /* Return a pointer to struct font_info of a font named NAME for frame F.
    If no such font is loaded, return NULL.  */
 
 /* Return a pointer to struct font_info of a font named NAME for frame F.
    If no such font is loaded, return NULL.  */

-extern struct font_info *(*query_font_func) (/* FRAME_PTR f; char *name */);
+extern struct font_info *(*query_font_func) P_ ((struct frame *f, char *name));

 
 /* Additional function for setting fontset or changing fontset
    contents of frame F.  This function may change the coordinate of
    the frame.  */
 
 /* Additional function for setting fontset or changing fontset
    contents of frame F.  This function may change the coordinate of
    the frame.  */

-extern void (*set_frame_fontset_func) (/* FRAME_PTR f; Lisp_Object arg, oldval */);
+extern void (*set_frame_fontset_func) P_ ((struct frame *f, Lisp_Object arg,
+                                          Lisp_Object oldval));
+
+/* To find a CCL program, fs_load_font calls this function.
+   The argument is a pointer to the struct font_info.
+   This function set the memer `encoder' of the structure.  */
+extern void (*find_ccl_program_func) P_ ((struct font_info *));

 
 /* Check if any window system is used now.  */
 
 /* Check if any window system is used now.  */

-extern void (*check_window_system_func) ();
+extern void (*check_window_system_func) P_ ((void));
+
+struct face;

 
 

-extern struct fontset_data *alloc_fontset_data ();
-extern void free_fontset_data ();
-extern struct font_info *fs_load_font ();
-extern Lisp_Object list_fontsets ();
-extern Lisp_Object Vglobal_fontset_alist;
+extern void free_face_fontset P_ ((FRAME_PTR, struct face *));
+extern Lisp_Object fontset_font_pattern P_ ((FRAME_PTR, int, int));
+extern int face_suitable_for_char_p P_ ((struct face *, int));
+extern int face_for_char P_ ((FRAME_PTR, struct face *, int));
+extern int make_fontset_for_ascii_face P_ ((FRAME_PTR, int));
+extern struct font_info *fs_load_font P_ ((struct frame *, int, char *, int,
+                                          struct face *));
+extern int fs_query_fontset P_ ((Lisp_Object, int));
+EXFUN (Fquery_fontset, 2);
+extern Lisp_Object list_fontsets P_ ((struct frame *, Lisp_Object, int));

 
 extern Lisp_Object Qfontset;
 extern Lisp_Object Vuse_default_ascent; 
 
 extern Lisp_Object Qfontset;
 extern Lisp_Object Vuse_default_ascent; 

-extern Lisp_Object Valternative_fontname_alist;
-extern Lisp_Object Vhighlight_wrong_size_font;
-extern Lisp_Object Vclip_large_size_font;
-
-#endif /* _FONTSET_H */
+extern Lisp_Object Vignore_relative_composition;
+extern Lisp_Object Valternate_fontname_alist;
+extern Lisp_Object Vfontset_alias_alist;
+extern Lisp_Object Vvertical_centering_font_regexp;
+
+/* Load a font named FONTNAME for displaying character C.  All fonts
+   for frame F is stored in a table pointed by FONT_TABLE.  Return a
+   pointer to the struct font_info of the loaded font.  If loading
+   fails, return 0; If FONTNAME is NULL, the name is taken from the
+   information of FONTSET.  If FONTSET is given, try to load a font
+   whose size matches that of FONTSET, and, the font index is stored
+   in the table for FONTSET.  */
+
+#define FS_LOAD_FONT(f, c, fontname, fontset)  \
+  fs_load_font (f, c, fontname, fontset, NULL)
+
+#define FS_LOAD_FACE_FONT(f, c, fontname, face) \
+  fs_load_font (f, c, fontname, -1, face)
+
+/* Return an immutable id for font_info FONT_INFO on frame F.  The
+   reason for this macro is hat one cannot hold pointers to font_info
+   structures in other data structures, because the table is
+   reallocated in x_list_fonts.  */
+
+#define FONT_INFO_ID(F, FONT_INFO) \
+     (FONT_INFO) - (FRAME_X_DISPLAY_INFO ((F))->font_table)
+
+/* Given a font_info id ID, return a pointer to the font_info
+   structure on frame F.  If ID is invalid, return null.  */
+
+#define FONT_INFO_FROM_ID(F, ID)                                       \
+     (((ID) >= 0 && (ID) < FRAME_X_DISPLAY_INFO ((F))->font_table_size)        \
+      ? (FRAME_X_DISPLAY_INFO ((F))->font_table + (ID))                        \
+      : 0)
+
+extern Lisp_Object fontset_name P_ ((int));
+extern Lisp_Object fontset_ascii P_ ((int));
+extern int fontset_height P_ ((int));
+
+#endif /* EMACS_FONTSET_H */