Mercurial > hg > xemacs-beta
view src/objects-gtk.c @ 665:fdefd0186b75
[xemacs-hg @ 2001-09-20 06:28:42 by ben]
The great integral types renaming.
The purpose of this is to rationalize the names used for various
integral types, so that they match their intended uses and follow
consist conventions, and eliminate types that were not semantically
different from each other.
The conventions are:
-- All integral types that measure quantities of anything are
signed. Some people disagree vociferously with this, but their
arguments are mostly theoretical, and are vastly outweighed by
the practical headaches of mixing signed and unsigned values,
and more importantly by the far increased likelihood of
inadvertent bugs: Because of the broken "viral" nature of
unsigned quantities in C (operations involving mixed
signed/unsigned are done unsigned, when exactly the opposite is
nearly always wanted), even a single error in declaring a
quantity unsigned that should be signed, or even the even more
subtle error of comparing signed and unsigned values and
forgetting the necessary cast, can be catastrophic, as
comparisons will yield wrong results. -Wsign-compare is turned
on specifically to catch this, but this tends to result in a
great number of warnings when mixing signed and unsigned, and
the casts are annoying. More has been written on this
elsewhere.
-- All such quantity types just mentioned boil down to EMACS_INT,
which is 32 bits on 32-bit machines and 64 bits on 64-bit
machines. This is guaranteed to be the same size as Lisp
objects of type `int', and (as far as I can tell) of size_t
(unsigned!) and ssize_t. The only type below that is not an
EMACS_INT is Hashcode, which is an unsigned value of the same
size as EMACS_INT.
-- Type names should be relatively short (no more than 10
characters or so), with the first letter capitalized and no
underscores if they can at all be avoided.
-- "count" == a zero-based measurement of some quantity. Includes
sizes, offsets, and indexes.
-- "bpos" == a one-based measurement of a position in a buffer.
"Charbpos" and "Bytebpos" count text in the buffer, rather than
bytes in memory; thus Bytebpos does not directly correspond to
the memory representation. Use "Membpos" for this.
-- "Char" refers to internal-format characters, not to the C type
"char", which is really a byte.
-- For the actual name changes, see the script below.
I ran the following script to do the conversion. (NOTE: This script
is idempotent. You can safely run it multiple times and it will
not screw up previous results -- in fact, it will do nothing if
nothing has changed. Thus, it can be run repeatedly as necessary
to handle patches coming in from old workspaces, or old branches.)
There are two tags, just before and just after the change:
`pre-integral-type-rename' and `post-integral-type-rename'. When
merging code from the main trunk into a branch, the best thing to
do is first merge up to `pre-integral-type-rename', then apply the
script and associated changes, then merge from
`post-integral-type-change' to the present. (Alternatively, just do
the merging in one operation; but you may then have a lot of
conflicts needing to be resolved by hand.)
Script `fixtypes.sh' follows:
----------------------------------- cut ------------------------------------
files="*.[ch] s/*.h m/*.h config.h.in ../configure.in Makefile.in.in ../lib-src/*.[ch] ../lwlib/*.[ch]"
gr Memory_Count Bytecount $files
gr Lstream_Data_Count Bytecount $files
gr Element_Count Elemcount $files
gr Hash_Code Hashcode $files
gr extcount bytecount $files
gr bufpos charbpos $files
gr bytind bytebpos $files
gr memind membpos $files
gr bufbyte intbyte $files
gr Extcount Bytecount $files
gr Bufpos Charbpos $files
gr Bytind Bytebpos $files
gr Memind Membpos $files
gr Bufbyte Intbyte $files
gr EXTCOUNT BYTECOUNT $files
gr BUFPOS CHARBPOS $files
gr BYTIND BYTEBPOS $files
gr MEMIND MEMBPOS $files
gr BUFBYTE INTBYTE $files
gr MEMORY_COUNT BYTECOUNT $files
gr LSTREAM_DATA_COUNT BYTECOUNT $files
gr ELEMENT_COUNT ELEMCOUNT $files
gr HASH_CODE HASHCODE $files
----------------------------------- cut ------------------------------------
`fixtypes.sh' is a Bourne-shell script; it uses 'gr':
----------------------------------- cut ------------------------------------
#!/bin/sh
# Usage is like this:
# gr FROM TO FILES ...
# globally replace FROM with TO in FILES. FROM and TO are regular expressions.
# backup files are stored in the `backup' directory.
from="$1"
to="$2"
shift 2
echo ${1+"$@"} | xargs global-replace "s/$from/$to/g"
----------------------------------- cut ------------------------------------
`gr' in turn uses a Perl script to do its real work,
`global-replace', which follows:
----------------------------------- cut ------------------------------------
: #-*- Perl -*-
### global-modify --- modify the contents of a file by a Perl expression
## Copyright (C) 1999 Martin Buchholz.
## Copyright (C) 2001 Ben Wing.
## Authors: Martin Buchholz <martin@xemacs.org>, Ben Wing <ben@xemacs.org>
## Maintainer: Ben Wing <ben@xemacs.org>
## Current Version: 1.0, May 5, 2001
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with XEmacs; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
eval 'exec perl -w -S $0 ${1+"$@"}'
if 0;
use strict;
use FileHandle;
use Carp;
use Getopt::Long;
use File::Basename;
(my $myName = $0) =~ s@.*/@@; my $usage="
Usage: $myName [--help] [--backup-dir=DIR] [--line-mode] [--hunk-mode]
PERLEXPR FILE ...
Globally modify a file, either line by line or in one big hunk.
Typical usage is like this:
[with GNU print, GNU xargs: guaranteed to handle spaces, quotes, etc.
in file names]
find . -name '*.[ch]' -print0 | xargs -0 $0 's/\bCONST\b/const/g'\n
[with non-GNU print, xargs]
find . -name '*.[ch]' -print | xargs $0 's/\bCONST\b/const/g'\n
The file is read in, either line by line (with --line-mode specified)
or in one big hunk (with --hunk-mode specified; it's the default), and
the Perl expression is then evalled with \$_ set to the line or hunk of
text, including the terminating newline if there is one. It should
destructively modify the value there, storing the changed result in \$_.
Files in which any modifications are made are backed up to the directory
specified using --backup-dir, or to `backup' by default. To disable this,
use --backup-dir= with no argument.
Hunk mode is the default because it is MUCH MUCH faster than line-by-line.
Use line-by-line only when it matters, e.g. you want to do a replacement
only once per line (the default without the `g' argument). Conversely,
when using hunk mode, *ALWAYS* use `g'; otherwise, you will only make one
replacement in the entire file!
";
my %options = ();
$Getopt::Long::ignorecase = 0;
&GetOptions (
\%options,
'help', 'backup-dir=s', 'line-mode', 'hunk-mode',
);
die $usage if $options{"help"} or @ARGV <= 1;
my $code = shift;
die $usage if grep (-d || ! -w, @ARGV);
sub SafeOpen {
open ((my $fh = new FileHandle), $_[0]);
confess "Can't open $_[0]: $!" if ! defined $fh;
return $fh;
}
sub SafeClose {
close $_[0] or confess "Can't close $_[0]: $!";
}
sub FileContents {
my $fh = SafeOpen ("< $_[0]");
my $olddollarslash = $/;
local $/ = undef;
my $contents = <$fh>;
$/ = $olddollarslash;
return $contents;
}
sub WriteStringToFile {
my $fh = SafeOpen ("> $_[0]");
binmode $fh;
print $fh $_[1] or confess "$_[0]: $!\n";
SafeClose $fh;
}
foreach my $file (@ARGV) {
my $changed_p = 0;
my $new_contents = "";
if ($options{"line-mode"}) {
my $fh = SafeOpen $file;
while (<$fh>) {
my $save_line = $_;
eval $code;
$changed_p = 1 if $save_line ne $_;
$new_contents .= $_;
}
} else {
my $orig_contents = $_ = FileContents $file;
eval $code;
if ($_ ne $orig_contents) {
$changed_p = 1;
$new_contents = $_;
}
}
if ($changed_p) {
my $backdir = $options{"backup-dir"};
$backdir = "backup" if !defined ($backdir);
if ($backdir) {
my ($name, $path, $suffix) = fileparse ($file, "");
my $backfulldir = $path . $backdir;
my $backfile = "$backfulldir/$name";
mkdir $backfulldir, 0755 unless -d $backfulldir;
print "modifying $file (original saved in $backfile)\n";
rename $file, $backfile;
}
WriteStringToFile ($file, $new_contents);
}
}
----------------------------------- cut ------------------------------------
In addition to those programs, I needed to fix up a few other
things, particularly relating to the duplicate definitions of
types, now that some types merged with others. Specifically:
1. in lisp.h, removed duplicate declarations of Bytecount. The
changed code should now look like this: (In each code snippet
below, the first and last lines are the same as the original, as
are all lines outside of those lines. That allows you to locate
the section to be replaced, and replace the stuff in that
section, verifying that there isn't anything new added that
would need to be kept.)
--------------------------------- snip -------------------------------------
/* Counts of bytes or chars */
typedef EMACS_INT Bytecount;
typedef EMACS_INT Charcount;
/* Counts of elements */
typedef EMACS_INT Elemcount;
/* Hash codes */
typedef unsigned long Hashcode;
/* ------------------------ dynamic arrays ------------------- */
--------------------------------- snip -------------------------------------
2. in lstream.h, removed duplicate declaration of Bytecount.
Rewrote the comment about this type. The changed code should
now look like this:
--------------------------------- snip -------------------------------------
#endif
/* The have been some arguments over the what the type should be that
specifies a count of bytes in a data block to be written out or read in,
using Lstream_read(), Lstream_write(), and related functions.
Originally it was long, which worked fine; Martin "corrected" these to
size_t and ssize_t on the grounds that this is theoretically cleaner and
is in keeping with the C standards. Unfortunately, this practice is
horribly error-prone due to design flaws in the way that mixed
signed/unsigned arithmetic happens. In fact, by doing this change,
Martin introduced a subtle but fatal error that caused the operation of
sending large mail messages to the SMTP server under Windows to fail.
By putting all values back to be signed, avoiding any signed/unsigned
mixing, the bug immediately went away. The type then in use was
Lstream_Data_Count, so that it be reverted cleanly if a vote came to
that. Now it is Bytecount.
Some earlier comments about why the type must be signed: This MUST BE
SIGNED, since it also is used in functions that return the number of
bytes actually read to or written from in an operation, and these
functions can return -1 to signal error.
Note that the standard Unix read() and write() functions define the
count going in as a size_t, which is UNSIGNED, and the count going
out as an ssize_t, which is SIGNED. This is a horrible design
flaw. Not only is it highly likely to lead to logic errors when a
-1 gets interpreted as a large positive number, but operations are
bound to fail in all sorts of horrible ways when a number in the
upper-half of the size_t range is passed in -- this number is
unrepresentable as an ssize_t, so code that checks to see how many
bytes are actually written (which is mandatory if you are dealing
with certain types of devices) will get completely screwed up.
--ben
*/
typedef enum lstream_buffering
--------------------------------- snip -------------------------------------
3. in dumper.c, there are four places, all inside of switch()
statements, where XD_BYTECOUNT appears twice as a case tag. In
each case, the two case blocks contain identical code, and you
should *REMOVE THE SECOND* and leave the first.
| author | ben |
|---|---|
| date | Thu, 20 Sep 2001 06:31:11 +0000 |
| parents | 190b164ddcac |
| children | 026c5bf9c134 |
line wrap: on
line source
/* X-specific Lisp objects. Copyright (C) 1993, 1994 Free Software Foundation, Inc. Copyright (C) 1995 Board of Trustees, University of Illinois. Copyright (C) 1995 Tinker Systems. Copyright (C) 1995, 1996 Ben Wing. Copyright (C) 1995 Sun Microsystems, Inc. This file is part of XEmacs. XEmacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ /* Authors: Jamie Zawinski, Chuck Thompson, Ben Wing */ /* Gtk version by William Perry */ #include <config.h> #include "lisp.h" #include "console-gtk.h" #include "objects-gtk.h" #include "buffer.h" #include "device.h" #include "insdel.h" /* sigh */ #include <gdk/gdkx.h> /************************************************************************/ /* color instances */ /************************************************************************/ /* Replacement for XAllocColor() that tries to return the nearest available color if the colormap is full. Original was from FSFmacs, but rewritten by Jareth Hein <jareth@camelot-soft.com> 97/11/25 Modified by Lee Kindness <lkindness@csl.co.uk> 31/08/99 to handle previous total failure which was due to a read/write colorcell being the nearest match - tries the next nearest... Gdk takes care of all this behind the scenes, so we don't need to worry about it. Return value is 1 for normal success, 2 for nearest color success, 3 for Non-deallocable sucess. */ int allocate_nearest_color (GdkColormap *colormap, GdkVisual *visual, GdkColor *color_def) { int rc; rc = gdk_colormap_alloc_color (colormap, color_def, FALSE, TRUE); if (rc == TRUE) return (1); return (0); } int gtk_parse_nearest_color (struct device *d, GdkColor *color, Intbyte *name, Bytecount len, Error_Behavior errb) { GdkColormap *cmap; GdkVisual *visual; int result; cmap = DEVICE_GTK_COLORMAP(d); visual = DEVICE_GTK_VISUAL (d); xzero (*color); { const Extbyte *extname; Bytecount extnamelen; TO_EXTERNAL_FORMAT (DATA, (name, len), ALLOCA, (extname, extnamelen), Qbinary); result = gdk_color_parse (extname, color); } if (result == FALSE) { maybe_invalid_argument ("unrecognized color", make_string (name, len), Qcolor, errb); return 0; } result = allocate_nearest_color (cmap, visual, color); if (!result) { maybe_signal_error (Qgui_error, "couldn't allocate color", make_string (name, len), Qcolor, errb); return 0; } return result; } static int gtk_initialize_color_instance (struct Lisp_Color_Instance *c, Lisp_Object name, Lisp_Object device, Error_Behavior errb) { GdkColor color; int result; result = gtk_parse_nearest_color (XDEVICE (device), &color, XSTRING_DATA (name), XSTRING_LENGTH (name), errb); if (!result) return 0; /* Don't allocate the data until we're sure that we will succeed, or the finalize method may get fucked. */ c->data = xnew (struct gtk_color_instance_data); if (result == 3) COLOR_INSTANCE_GTK_DEALLOC (c) = 0; else COLOR_INSTANCE_GTK_DEALLOC (c) = 1; COLOR_INSTANCE_GTK_COLOR (c) = gdk_color_copy (&color); return 1; } static void gtk_print_color_instance (struct Lisp_Color_Instance *c, Lisp_Object printcharfun, int escapeflag) { char buf[100]; GdkColor *color = COLOR_INSTANCE_GTK_COLOR (c); sprintf (buf, " %ld=(%X,%X,%X)", color->pixel, color->red, color->green, color->blue); write_c_string (buf, printcharfun); } static void gtk_finalize_color_instance (struct Lisp_Color_Instance *c) { if (c->data) { if (DEVICE_LIVE_P (XDEVICE (c->device))) { if (COLOR_INSTANCE_GTK_DEALLOC (c)) { gdk_colormap_free_colors (DEVICE_GTK_COLORMAP (XDEVICE (c->device)), COLOR_INSTANCE_GTK_COLOR (c), 1); } gdk_color_free (COLOR_INSTANCE_GTK_COLOR (c)); } xfree (c->data); c->data = 0; } } /* Color instances are equal if they resolve to the same color on the screen (have the same RGB values). I imagine that "same RGB values" == "same cell in the colormap." Arguably we should be comparing their names or pixel values instead. */ static int gtk_color_instance_equal (struct Lisp_Color_Instance *c1, struct Lisp_Color_Instance *c2, int depth) { return (gdk_color_equal (COLOR_INSTANCE_GTK_COLOR (c1), COLOR_INSTANCE_GTK_COLOR (c2))); } static unsigned long gtk_color_instance_hash (struct Lisp_Color_Instance *c, int depth) { return (gdk_color_hash (COLOR_INSTANCE_GTK_COLOR (c), NULL)); } static Lisp_Object gtk_color_instance_rgb_components (struct Lisp_Color_Instance *c) { GdkColor *color = COLOR_INSTANCE_GTK_COLOR (c); return (list3 (make_int (color->red), make_int (color->green), make_int (color->blue))); } static int gtk_valid_color_name_p (struct device *d, Lisp_Object color) { GdkColor c; const char *extname; TO_EXTERNAL_FORMAT (LISP_STRING, color, C_STRING_ALLOCA, extname, Qctext); if (gdk_color_parse (extname, &c) != TRUE) return(0); return (1); } /************************************************************************/ /* font instances */ /************************************************************************/ static int gtk_initialize_font_instance (struct Lisp_Font_Instance *f, Lisp_Object name, Lisp_Object device, Error_Behavior errb) { GdkFont *gf; XFontStruct *xf; const char *extname; TO_EXTERNAL_FORMAT (LISP_STRING, f->name, C_STRING_ALLOCA, extname, Qctext); gf = gdk_font_load (extname); if (!gf) { maybe_signal_error (Qgui_error, "couldn't load font", f->name, Qfont, errb); return 0; } xf = GDK_FONT_XFONT (gf); /* Don't allocate the data until we're sure that we will succeed, or the finalize method may get fucked. */ f->data = xnew (struct gtk_font_instance_data); FONT_INSTANCE_GTK_TRUENAME (f) = Qnil; FONT_INSTANCE_GTK_FONT (f) = gf; f->ascent = gf->ascent; f->descent = gf->descent; f->height = gf->ascent + gf->descent; /* Now lets figure out the width of the font */ { /* following change suggested by Ted Phelps <phelps@dstc.edu.au> */ unsigned int def_char = 'n'; /*xf->default_char;*/ unsigned int byte1, byte2; once_more: byte1 = def_char >> 8; byte2 = def_char & 0xFF; if (xf->per_char) { /* Old versions of the R5 font server have garbage (>63k) as def_char. 'n' might not be a valid character. */ if (byte1 < xf->min_byte1 || byte1 > xf->max_byte1 || byte2 < xf->min_char_or_byte2 || byte2 > xf->max_char_or_byte2) f->width = 0; else f->width = xf->per_char[(byte1 - xf->min_byte1) * (xf->max_char_or_byte2 - xf->min_char_or_byte2 + 1) + (byte2 - xf->min_char_or_byte2)].width; } else f->width = xf->max_bounds.width; /* Some fonts have a default char whose width is 0. This is no good. If that's the case, first try 'n' as the default char, and if n has 0 width too (unlikely) then just use the max width. */ if (f->width == 0) { if (def_char == xf->default_char) f->width = xf->max_bounds.width; else { def_char = xf->default_char; goto once_more; } } } /* If all characters don't exist then there could potentially be 0-width characters lurking out there. Not setting this flag trips an optimization that would make them appear to have width to redisplay. This is bad. So we set it if not all characters have the same width or if not all characters are defined. */ /* #### This sucks. There is a measurable performance increase when using proportional width fonts if this flag is not set. Unfortunately so many of the fucking X fonts are not fully defined that we could almost just get rid of this damn flag and make it an assertion. */ f->proportional_p = (xf->min_bounds.width != xf->max_bounds.width || (/* x_handle_non_fully_specified_fonts */ 0 && !xf->all_chars_exist)); #if 0 f->width = gdk_char_width (gf, 'n'); f->proportional_p = (gdk_char_width (gf, '|') != gdk_char_width (gf, 'W')) ? 1 : 0; #endif return 1; } static void gtk_mark_font_instance (struct Lisp_Font_Instance *f) { mark_object (FONT_INSTANCE_GTK_TRUENAME (f)); } static void gtk_print_font_instance (struct Lisp_Font_Instance *f, Lisp_Object printcharfun, int escapeflag) { char buf[200]; sprintf (buf, " 0x%lx", (unsigned long) gdk_font_id (FONT_INSTANCE_GTK_FONT (f))); write_c_string (buf, printcharfun); } static void gtk_finalize_font_instance (struct Lisp_Font_Instance *f) { if (f->data) { if (DEVICE_LIVE_P (XDEVICE (f->device))) { gdk_font_unref (FONT_INSTANCE_GTK_FONT (f)); } xfree (f->data); f->data = 0; } } /* Forward declarations for X specific functions at the end of the file */ Lisp_Object __get_gtk_font_truename (GdkFont *gdk_font, int expandp); static Lisp_Object __gtk_list_fonts_internal (const char *pattern); static Lisp_Object gtk_font_instance_truename (struct Lisp_Font_Instance *f, Error_Behavior errb) { if (NILP (FONT_INSTANCE_GTK_TRUENAME (f))) { FONT_INSTANCE_GTK_TRUENAME (f) = __get_gtk_font_truename (FONT_INSTANCE_GTK_FONT (f), 1); if (NILP (FONT_INSTANCE_GTK_TRUENAME (f))) { /* Ok, just this once, return the font name as the truename. (This is only used by Fequal() right now.) */ return f->name; } } return (FONT_INSTANCE_GTK_TRUENAME (f)); } static Lisp_Object gtk_font_instance_properties (struct Lisp_Font_Instance *f) { Lisp_Object result = Qnil; /* #### BILL!!! */ /* There seems to be no way to get this information under Gtk */ return result; } static Lisp_Object gtk_list_fonts (Lisp_Object pattern, Lisp_Object device) { const char *patternext; TO_EXTERNAL_FORMAT (LISP_STRING, pattern, C_STRING_ALLOCA, patternext, Qbinary); return (__gtk_list_fonts_internal (patternext)); } #ifdef MULE static int gtk_font_spec_matches_charset (struct device *d, Lisp_Object charset, const Intbyte *nonreloc, Lisp_Object reloc, Bytecount offset, Bytecount length) { if (UNBOUNDP (charset)) return 1; /* Hack! Short font names don't have the registry in them, so we just assume the user knows what they're doing in the case of ASCII. For other charsets, you gotta give the long form; sorry buster. */ if (EQ (charset, Vcharset_ascii)) { const Intbyte *the_nonreloc = nonreloc; int i; Bytecount the_length = length; if (!the_nonreloc) the_nonreloc = XSTRING_DATA (reloc); fixup_internal_substring (nonreloc, reloc, offset, &the_length); the_nonreloc += offset; if (!memchr (the_nonreloc, '*', the_length)) { for (i = 0;; i++) { const Intbyte *new_nonreloc = (const Intbyte *) memchr (the_nonreloc, '-', the_length); if (!new_nonreloc) break; new_nonreloc++; the_length -= new_nonreloc - the_nonreloc; the_nonreloc = new_nonreloc; } /* If it has less than 5 dashes, it's a short font. Of course, long fonts always have 14 dashes or so, but short fonts never have more than 1 or 2 dashes, so this is some sort of reasonable heuristic. */ if (i < 5) return 1; } } return (fast_string_match (XCHARSET_REGISTRY (charset), nonreloc, reloc, offset, length, 1, ERROR_ME, 0) >= 0); } /* find a font spec that matches font spec FONT and also matches (the registry of) CHARSET. */ static Lisp_Object gtk_find_charset_font (Lisp_Object device, Lisp_Object font, Lisp_Object charset); #endif /* MULE */ /************************************************************************/ /* initialization */ /************************************************************************/ void syms_of_objects_gtk (void) { } void console_type_create_objects_gtk (void) { /* object methods */ CONSOLE_HAS_METHOD (gtk, initialize_color_instance); CONSOLE_HAS_METHOD (gtk, print_color_instance); CONSOLE_HAS_METHOD (gtk, finalize_color_instance); CONSOLE_HAS_METHOD (gtk, color_instance_equal); CONSOLE_HAS_METHOD (gtk, color_instance_hash); CONSOLE_HAS_METHOD (gtk, color_instance_rgb_components); CONSOLE_HAS_METHOD (gtk, valid_color_name_p); CONSOLE_HAS_METHOD (gtk, initialize_font_instance); CONSOLE_HAS_METHOD (gtk, mark_font_instance); CONSOLE_HAS_METHOD (gtk, print_font_instance); CONSOLE_HAS_METHOD (gtk, finalize_font_instance); CONSOLE_HAS_METHOD (gtk, font_instance_truename); CONSOLE_HAS_METHOD (gtk, font_instance_properties); CONSOLE_HAS_METHOD (gtk, list_fonts); #ifdef MULE CONSOLE_HAS_METHOD (gtk, find_charset_font); CONSOLE_HAS_METHOD (gtk, font_spec_matches_charset); #endif } void vars_of_objects_gtk (void) { } /* #### BILL!!! Try to make this go away eventually */ /* X Specific stuff */ #include <X11/Xatom.h> /* Unbounded, for sufficiently small values of infinity... */ #define MAX_FONT_COUNT 5000 #ifdef MULE /* find a font spec that matches font spec FONT and also matches (the registry of) CHARSET. */ static Lisp_Object gtk_find_charset_font (Lisp_Object device, Lisp_Object font, Lisp_Object charset) { char **names; int count = 0; Lisp_Object result = Qnil; const char *patternext; int i; TO_EXTERNAL_FORMAT (LISP_STRING, font, C_STRING_ALLOCA, patternext, Qbinary); names = XListFonts (GDK_DISPLAY (), patternext, MAX_FONT_COUNT, &count); /* ### This code seems awfully bogus -- mrb */ for (i = 0; i < count; i ++) { const Intbyte *intname; Bytecount intlen; TO_INTERNAL_FORMAT (C_STRING, names[i], ALLOCA, (intname, intlen), Qctext); if (gtk_font_spec_matches_charset (XDEVICE (device), charset, intname, Qnil, 0, -1)) { result = make_string ((char *) intname, intlen); break; } } if (names) XFreeFontNames (names); /* Check for a short font name. */ if (NILP (result) && gtk_font_spec_matches_charset (XDEVICE (device), charset, 0, font, 0, -1)) return font; return result; } #endif /* MULE */ /* Unbounded, for sufficiently small values of infinity... */ #define MAX_FONT_COUNT 5000 static int valid_font_name_p (Display *dpy, char *name) { /* Maybe this should be implemented by callign XLoadFont and trapping the error. That would be a lot of work, and wasteful as hell, but might be more correct. */ int nnames = 0; char **names = 0; if (! name) return 0; names = XListFonts (dpy, name, 1, &nnames); if (names) XFreeFontNames (names); return (nnames != 0); } Lisp_Object __get_gtk_font_truename (GdkFont *gdk_font, int expandp) { Display *dpy = GDK_FONT_XDISPLAY (gdk_font); GSList *names = ((GdkFontPrivate *) gdk_font)->names; Lisp_Object font_name = Qnil; while (names) { if (names->data) { if (valid_font_name_p (dpy, names->data)) { if (!expandp) { /* They want the wildcarded version */ font_name = build_string (names->data); } else { /* Need to expand out */ int nnames = 0; char **x_font_names = 0; x_font_names = XListFonts (dpy, names->data, 1, &nnames); if (x_font_names) { font_name = build_string (x_font_names[0]); XFreeFontNames (x_font_names); } } break; } } names = names->next; } return (font_name); } static Lisp_Object __gtk_list_fonts_internal (const char *pattern) { char **names; int count = 0; Lisp_Object result = Qnil; names = XListFonts (GDK_DISPLAY (), pattern, MAX_FONT_COUNT, &count); while (count--) result = Fcons (build_ext_string (names [count], Qbinary), result); if (names) XFreeFontNames (names); return result; }