This is objects-x.c in view mode; [Download] [Up]
/* 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 Ben Wing
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Synched up with: Not in FSF. */
/* Authors: Jamie Zawinski, Chuck Thompson, Ben Wing */
#include <config.h>
#include "lisp.h"
#include "device-x.h"
#include "objects-x.h"
#include "buffer.h"
#include "insdel.h"
int handle_nonfull_spec_fonts;
/************************************************************************/
/* color instances */
/************************************************************************/
/* Replacement for XAllocColor() that tries to return the nearest
available color if the colormap is full. From FSF Emacs. */
int
allocate_nearest_color (Display *display, Colormap screen_colormap,
XColor *color_def)
{
int status;
status = XAllocColor (display, screen_colormap, color_def);
if (!status)
{
/* If we got to this point, the colormap is full, so we're
going to try and get the next closest color.
The algorithm used is a least-squares matching, which is
what X uses for closest color matching with StaticColor visuals. */
XColor *cells;
int no_cells;
int nearest;
long nearest_delta, trial_delta;
int x;
no_cells = XDisplayCells (display, XDefaultScreen (display));
cells = (XColor *) alloca (sizeof (XColor) * no_cells);
for (x = 0; x < no_cells; x++)
cells[x].pixel = x;
XQueryColors (display, screen_colormap, cells, no_cells);
nearest = 0;
/* I'm assuming CSE so I'm not going to condense this. */
nearest_delta = ((((color_def->red >> 8) - (cells[0].red >> 8))
* ((color_def->red >> 8) - (cells[0].red >> 8)))
+
(((color_def->green >> 8) - (cells[0].green >> 8))
* ((color_def->green >> 8) - (cells[0].green >> 8)))
+
(((color_def->blue >> 8) - (cells[0].blue >> 8))
* ((color_def->blue >> 8) - (cells[0].blue >> 8))));
for (x = 1; x < no_cells; x++)
{
trial_delta = ((((color_def->red >> 8) - (cells[x].red >> 8))
* ((color_def->red >> 8) - (cells[x].red >> 8)))
+
(((color_def->green >> 8) - (cells[x].green >> 8))
* ((color_def->green >> 8) - (cells[x].green >> 8)))
+
(((color_def->blue >> 8) - (cells[x].blue >> 8))
* ((color_def->blue >> 8) - (cells[x].blue >> 8))));
if (trial_delta < nearest_delta)
{
nearest = x;
nearest_delta = trial_delta;
}
}
color_def->red = cells[nearest].red;
color_def->green = cells[nearest].green;
color_def->blue = cells[nearest].blue;
status = XAllocColor (display, screen_colormap, color_def);
}
return status;
}
static int
x_initialize_color_instance (struct Lisp_Color_Instance *c, Lisp_Object name,
Lisp_Object device, int no_error)
{
Display *dpy;
Screen *xs;
XColor color;
Colormap cmap;
int result;
dpy = DEVICE_X_DISPLAY (XDEVICE (device));
xs = DefaultScreenOfDisplay (dpy);
cmap = DefaultColormapOfScreen (xs);
memset (&color, 0, sizeof (color));
result = XParseColor (dpy, cmap,
string_ext_data (XSTRING (c->name)),
&color);
if (!result)
{
if (no_error)
return 0;
else
signal_simple_error ("unrecognised color", c->name);
}
result = allocate_nearest_color (dpy, cmap, &color);
if (!result)
{
if (no_error)
return 0;
else
signal_simple_error ("couldn't allocate color", c->name);
}
/* Don't allocate the data until we're sure that we will succeed,
or the finalize method may get fucked. */
c->data = malloc_type (struct x_color_instance_data);
COLOR_INSTANCE_X_COLOR (c) = color;
return 1;
}
static void
x_print_color_instance (struct Lisp_Color_Instance *c,
Lisp_Object printcharfun,
int escapeflag)
{
char buf[100];
XColor color = COLOR_INSTANCE_X_COLOR (c);
sprintf (buf, " %ld=(%X,%X,%X)",
color.pixel, color.red, color.green, color.blue);
write_c_string (buf, printcharfun);
}
static void
x_finalize_color_instance (struct Lisp_Color_Instance *c)
{
Display *dpy = DEVICE_X_DISPLAY (XDEVICE (c->device));
if (c->data)
{
XFreeColors (dpy,
DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)),
&COLOR_INSTANCE_X_COLOR (c).pixel, 1, 0);
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 RGV values" == "same cell in the colormap." Arguably we should
be comparing their names instead. */
static int
x_color_instance_equal (struct Lisp_Color_Instance *c1,
struct Lisp_Color_Instance *c2,
int depth)
{
XColor color1 = COLOR_INSTANCE_X_COLOR (c1);
XColor color2 = COLOR_INSTANCE_X_COLOR (c2);
return ((color1.red == color2.red) &&
(color1.green == color2.green) &&
(color1.blue == color2.blue));
}
static unsigned long
x_color_instance_hash (struct Lisp_Color_Instance *c, int depth)
{
XColor color = COLOR_INSTANCE_X_COLOR (c);
return HASH3 (color.red, color.green, color.blue);
}
static Lisp_Object
x_color_instance_rgb_components (struct Lisp_Color_Instance *c)
{
XColor color = COLOR_INSTANCE_X_COLOR (c);
return (list3 (make_number (color.red),
make_number (color.green),
make_number (color.blue)));
}
static int
x_valid_color_name_p (struct device *d, Lisp_Object color)
{
XColor c;
Display *dpy = DEVICE_X_DISPLAY (d);
return XParseColor (dpy,
DefaultColormapOfScreen (DefaultScreenOfDisplay (dpy)),
string_ext_data (XSTRING (color)), &c);
}
/************************************************************************/
/* font instances */
/************************************************************************/
static int
x_initialize_font_instance (struct Lisp_Font_Instance *f, Lisp_Object name,
Lisp_Object device, int no_error)
{
Display *dpy;
unsigned int def_char;
#ifdef MULE
XFontSet xf;
char **missing_charset_list = 0;
int missing_charset_count = 0;
char *def_string = "";
#else
XFontStruct *xf;
#endif
dpy = DEVICE_X_DISPLAY (XDEVICE (device));
#ifdef MULE
xf = XCreateFontSet (dpy, string_ext_data (XSTRING (f->name)),
&missing_charset_list, &missing_charset_count,
&def_string);
#else
xf = XLoadQueryFont (dpy, string_ext_data (XSTRING (f->name)));
#endif
if (!xf)
{
if (no_error)
return 0;
#ifdef MULE
if (!missing_charset_list)
signal_simple_error ("couldn't load font set", f->name);
else
{
Lisp_Object lost = Qnil;
int i;
for (i = missing_charset_count-1; i >= 0; i--)
lost = Fcons (build_string (missing_charset_list[i]),
lost);
signal_simple_error_2
("couldn't load font set (missing required fonts)",
f->name, lost);
}
#else
signal_simple_error ("couldn't load font", f->name);
#endif
}
#ifdef MULE
if (!XExtentsOfFontSet (xf)->max_logical_extent.width)
#else
if (!xf->max_bounds.width)
#endif
{
/* yes, this has been known to happen. */
#ifdef MULE
XFreeFontSet (dpy, xf);
#else
XFreeFont (dpy, xf);
#endif
if (no_error)
return 0;
signal_simple_error ("X font is too small", f->name);
}
/* Don't allocate the data until we're sure that we will succeed,
or the finalize method may get fucked. */
f->data = malloc_type (struct x_font_instance_data);
FONT_INSTANCE_X_TRUENAME (f) = Qnil;
FONT_INSTANCE_X_FONT (f) = xf;
#ifdef MULE
f->height = XExtentsOfFontSet(xf)->max_logical_extent.height;
f->ascent = -XExtentsOfFontSet(xf)->max_logical_extent.y;
f->descent = xf->height - xf->ascent;
#else
f->ascent = xf->ascent;
f->descent = xf->descent;
f->height = xf->ascent + xf->descent;
#endif
/* We used to use 'N' as the default character but that ends up
being a little wide as a default when variable width fonts are
used. 'n' seems to give a much better average. */
#ifdef MULE
{
XFontStruct **fstruct_l;
char **fname_l;
int n;
n= XFontsOfFontSet (xf, &fstruct_l, &fname_l);
if (n == 0)
abort ();
/* first font is iso-8859 and that's the width that we want to use */
lf->width = fstruct_l[0]->max_bounds.width;
def_char =
((fstruct_l[0]->default_char >= fstruct_l[0]->min_char_or_byte2 &&
fstruct_l[0]->default_char <= fstruct_l[0]->max_char_or_byte2)
? fstruct_l[0]->default_char
: 'n');
}
#else
/* Old versions of the R5 font server have garbage (>63k) as def_char. */
def_char = ((xf->default_char >= xf->min_char_or_byte2 &&
xf->default_char <= xf->max_char_or_byte2)
? xf->default_char
: 'n');
once_more:
f->width = (xf->per_char
/* #### what are we supposed to do with byte1 here? */
? xf->per_char [def_char - xf->min_char_or_byte2].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 == 'n')
f->width = xf->max_bounds.width;
else
{
def_char = 'n';
goto once_more;
}
}
#endif
#ifdef MULE
/* !!#### Review this. */
f->proportional_p = 1;
#else
/* 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 ||
(handle_nonfull_spec_fonts &&
!xf->all_chars_exist));
#endif
return 1;
}
static void
x_mark_font_instance (struct Lisp_Font_Instance *f,
void (*markobj) (Lisp_Object))
{
((markobj) (FONT_INSTANCE_X_TRUENAME (f)));
}
static void
x_print_font_instance (struct Lisp_Font_Instance *f,
Lisp_Object printcharfun,
int escapeflag)
{
char buf[200];
sprintf (buf, " 0x%lx", (unsigned long) FONT_INSTANCE_X_FONT (f)->fid);
write_c_string (buf, printcharfun);
}
static void
x_finalize_font_instance (struct Lisp_Font_Instance *f)
{
Display *dpy = DEVICE_X_DISPLAY (XDEVICE (f->device));
if (f->data)
{
# ifdef MULE
XFreeFontSet (dpy, FONT_INSTANCE_X_FONT (f));
# else
XFreeFont (dpy, FONT_INSTANCE_X_FONT (f));
# endif
xfree (f->data);
f->data = 0;
}
}
/* Determining the truename of a font is hard. (Big surprise.)
By "truename" we mean an XLFD-form name which contains no wildcards, yet
which resolves to *exactly* the same font as the one which we already have
the (probably wildcarded) name and `XFontStruct' of.
One might think that the first font returned by XListFonts would be the one
that XOpenFont would pick. Apparently this is the case on some servers,
but not on others. It would seem not to be specified.
The MIT R5 server sometimes appears to be picking the lexicographically
smallest font which matches the name (thus picking "adobe" fonts before
"bitstream" fonts even if the bitstream fonts are earlier in the path, and
also picking 100dpi adobe fonts over 75dpi adobe fonts even though the
75dpi are in the path earlier) but sometimes appears to be doing something
else entirely (for example, removing the bitsream fonts from the path will
cause the 75dpi adobe fonts to be used instead of the100dpi, even though
their relative positions in the path (and their names!) have not changed).
The documentation for XSetFontPath() seems to indicate that the order of
entries in the font path means something, but it's pretty noncommital about
it, and the spirit of the law is apparently not being obeyed...
All the fonts I've seen have a property named `FONT' which contains the
truename of the font. However, there are two problems with using this: the
first is that the X Protocol Document is quite explicit that all properties
are optional, so we can't depend on it being there. The second is that
it's concievable that this alleged truename isn't actually accessible as a
font, due to some difference of opinion between the font designers and
whoever installed the font on the system.
So, our first attempt is to look for a FONT property, and then verify that
the name there is a valid name by running XListFonts on it. There's still
the potential that this could be true but we could still be being lied to,
but that seems pretty remote.
Late breaking news: I've gotten reports that SunOS 4.1.3U1
with OpenWound 3.0 has a font whose truename is really
"-Adobe-Courier-Medium-R-Normal--12-120-75-75-M-70-ISO8859-1"
but whose FONT property contains "Courier".
So we disbelieve the FONT property unless it begins with a dash and
is more than 30 characters long. X Windows: The defacto substandard.
X Windows: Complex nonsolutions to simple nonproblems. X Windows:
Live the nightmare.
If the FONT property doesn't exist, then we try and construct an XLFD name
out of the other font properties (FOUNDRY, FAMILY_NAME, WEIGHT_NAME, etc).
This is necessary at least for some versions of OpenWound. But who knows
what the future will bring.
If that doesn't work, then we use XListFonts and either take the first font
(which I think is the most sensible thing) or we find the lexicographically
least, depending on whether the preprocessor constant `XOPENFONT_SORTS' is
defined. This sucks because the two behaviors are a property of the server
being used, not the architecture on which emacs has been compiled. Also,
as I described above, sorting isn't ALWAYS what the server does. Really it
does something seemingly random. There is no reliable way to win if the
FONT property isn't present.
Another possibility which I haven't bothered to implement would be to map
over all of the matching fonts and find the first one that has the same
character metrics as the font we already have loaded. Even if this didn't
return exactly the same font, it would at least return one whose characters
were the same sizes, which would probably be good enough.
More late-breaking news: on RS/6000 AIX 3.2.4, the expression
XLoadQueryFont (dpy, "-*-Fixed-Medium-R-*-*-*-130-75-75-*-*-ISO8859-1")
actually returns the font
-Misc-Fixed-Medium-R-Normal--13-120-75-75-C-80-ISO8859-1
which is crazy, because that font doesn't even match that pattern! It is
also not included in the output produced by `xlsfonts' with that pattern.
So this is yet another example of XListFonts() and XOpenFont() using
completely different algorithms. This, however, is a goofier example of
this bug, because in this case, it's not just the search order that is
different -- the sets don't even intersect.
If anyone has any better ideas how to do this, or any insights on what it is
that the various servers are actually doing, please let me know! -- jwz. */
static int
valid_x_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;
if (! name)
return 0;
names = XListFonts (dpy, name, 1, &nnames);
if (names)
XFreeFontNames (names);
return (nnames != 0);
}
static char *
truename_via_FONT_prop (Display *dpy, XFontStruct *font)
{
unsigned long value = 0;
char *result = 0;
if (XGetFontProperty (font, XA_FONT, &value))
result = XGetAtomName (dpy, value);
/* result is now 0, or the string value of the FONT property. */
if (result)
{
/* Verify that result is an XLFD name (roughly...) */
if (result [0] != '-' || strlen (result) < (unsigned int) 30)
{
XFree (result);
result = 0;
}
}
return result; /* this must be freed by caller if non-0 */
}
static char *
truename_via_random_props (Display *dpy, XFontStruct *font)
{
struct device *d = get_device_from_display (dpy);
unsigned long value = 0;
char *foundry, *family, *weight, *slant, *setwidth, *add_style;
unsigned long pixel, point, res_x, res_y;
char *spacing;
unsigned long avg_width;
char *registry, *encoding;
char composed_name [2048];
int ok = 0;
char *result;
#define get_string(atom,var) \
if (XGetFontProperty (font, (atom), &value)) \
var = XGetAtomName (dpy, value); \
else { \
var = 0; \
goto FAIL; }
#define get_number(atom,var) \
if (!XGetFontProperty (font, (atom), &var) || \
var > 999) \
goto FAIL;
foundry = family = weight = slant = setwidth = 0;
add_style = spacing = registry = encoding = 0;
get_string (DEVICE_XATOM_FOUNDRY (d), foundry);
get_string (DEVICE_XATOM_FAMILY_NAME (d), family);
get_string (DEVICE_XATOM_WEIGHT_NAME (d), weight);
get_string (DEVICE_XATOM_SLANT (d), slant);
get_string (DEVICE_XATOM_SETWIDTH_NAME (d), setwidth);
get_string (DEVICE_XATOM_ADD_STYLE_NAME (d), add_style);
get_number (DEVICE_XATOM_PIXEL_SIZE (d), pixel);
get_number (DEVICE_XATOM_POINT_SIZE (d), point);
get_number (DEVICE_XATOM_RESOLUTION_X (d), res_x);
get_number (DEVICE_XATOM_RESOLUTION_Y (d), res_y);
get_string (DEVICE_XATOM_SPACING (d), spacing);
get_number (DEVICE_XATOM_AVERAGE_WIDTH (d), avg_width);
get_string (DEVICE_XATOM_CHARSET_REGISTRY (d), registry);
get_string (DEVICE_XATOM_CHARSET_ENCODING (d), encoding);
#undef get_number
#undef get_string
sprintf (composed_name,
"-%s-%s-%s-%s-%s-%s-%ld-%ld-%ld-%ld-%s-%ld-%s-%s",
foundry, family, weight, slant, setwidth, add_style, pixel,
point, res_x, res_y, spacing, avg_width, registry, encoding);
ok = 1;
FAIL:
if (ok)
{
int L = strlen (composed_name) + 1;
result = xmalloc (L);
strncpy (result, composed_name, L);
}
else
result = 0;
if (foundry) XFree (foundry);
if (family) XFree (family);
if (weight) XFree (weight);
if (slant) XFree (slant);
if (setwidth) XFree (setwidth);
if (add_style) XFree (add_style);
if (spacing) XFree (spacing);
if (registry) XFree (registry);
if (encoding) XFree (encoding);
return result;
}
/* Unbounded, for sufficiently small values of infinity... */
#define MAX_FONT_COUNT 5000
static char *
truename_via_XListFonts (Display *dpy, char *font_name)
{
char *result = 0;
char **names;
int count = 0;
#ifndef XOPENFONT_SORTS
/* In a sensible world, the first font returned by XListFonts()
would be the font that XOpenFont() would use. */
names = XListFonts (dpy, font_name, 1, &count);
if (count) result = names [0];
#else
/* But the world I live in is much more perverse. */
names = XListFonts (dpy, font_name, MAX_FONT_COUNT, &count);
while (count--)
/* If names[count] is lexicographically less than result, use it.
(#### Should we be comparing case-insensitively?) */
if (result == 0 || (strcmp (result, names [count]) < 0))
result = names [count];
#endif
if (result)
result = xstrdup (result);
if (names)
XFreeFontNames (names);
return result; /* this must be freed by caller if non-0 */
}
static Lisp_Object
x_font_truename (Display *dpy, char *name, XFontStruct *font)
{
char *truename_FONT = 0;
char *truename_random = 0;
char *truename = 0;
/* The search order is:
- if FONT property exists, and is a valid name, return it.
- if the other props exist, and add up to a valid name, return it.
- if we find a matching name with XListFonts, return it.
- if FONT property exists, return it regardless.
- if other props exist, return the resultant name regardless.
- else return 0.
*/
truename = truename_FONT = truename_via_FONT_prop (dpy, font);
if (truename && !valid_x_font_name_p (dpy, truename))
truename = 0;
if (!truename)
truename = truename_random = truename_via_random_props (dpy, font);
if (truename && !valid_x_font_name_p (dpy, truename))
truename = 0;
if (!truename && name)
truename = truename_via_XListFonts (dpy, name);
if (!truename)
{
/* Gag - we weren't able to find a seemingly-valid truename.
Well, maybe we're on one of those braindead systems where
XListFonts() and XLoadFont() are in violent disagreement.
If we were able to compute a truename, try using that even
if evidence suggests that it's not a valid name - because
maybe it is, really, and that's better than nothing.
X Windows: You'll envy the dead.
*/
if (truename_FONT)
truename = truename_FONT;
else if (truename_random)
truename = truename_random;
}
/* One or both of these are not being used - free them. */
if (truename_FONT && truename_FONT != truename)
XFree (truename_FONT);
if (truename_random && truename_random != truename)
XFree (truename_random);
if (truename)
{
Lisp_Object result = build_string (truename);
xfree (truename);
return result;
}
else
return Qnil;
}
static Lisp_Object
x_font_instance_truename (struct Lisp_Font_Instance *f, int no_error)
{
struct device *d = XDEVICE (f->device);
if (NILP (FONT_INSTANCE_X_TRUENAME (f)))
{
Display *dpy = DEVICE_X_DISPLAY (d);
char *name =
(char *) string_data (XSTRING (f->name));
#ifdef MULE
{
XFontStruct **fonts;
char **names;
int count = XFontsOfFontSet (FONT_INSTANCE_X_FONT (f), &fonts, &names);
Lisp_Object *lnames =
(Lisp_Object *) alloca (count * 2 * sizeof (Lisp_Object));
Lisp_Object comma = build_string (","); /* Q'ing this would be silly */
int i, j;
for (i = 0, j = 0; i < count; i++)
{
Lisp_Object tn = x_font_truename (dpy, names [i], fonts [i]);
if (NILP (tn)) tn = build_string (names [i]);
if (i != 0) lnames [j++] = comma;
lnames [j++] = tn;
}
FONT_INSTANCE_X_TRUENAME (f) = Fconcat (j, lnames);
}
#else
{
FONT_INSTANCE_X_TRUENAME (f) =
x_font_truename (dpy, name, FONT_INSTANCE_X_FONT (f));
}
#endif
if (NILP (FONT_INSTANCE_X_TRUENAME (f)))
{
if (no_error)
/* Ok, just this once, return the font name as the truename.
(This is only used by Fequal() right now.) */
return f->name;
else
{
Lisp_Object font_instance = Qnil;
XSETFONT_INSTANCE (font_instance, f);
signal_simple_error ("couldn't determine font truename",
font_instance);
}
}
}
return (FONT_INSTANCE_X_TRUENAME (f));
}
static Lisp_Object
x_font_instance_properties (struct Lisp_Font_Instance *f)
{
struct device *d = XDEVICE (f->device);
int i;
Lisp_Object result = Qnil;
XFontProp *props;
Display *dpy;
dpy = DEVICE_X_DISPLAY (d);
/* #### Won't work under Mule. */
props = FONT_INSTANCE_X_FONT (f)->properties;
for (i = FONT_INSTANCE_X_FONT (f)->n_properties - 1; i >= 0; i--)
{
char *name_str = 0;
char *val_str = 0;
Lisp_Object name, value;
Atom atom = props [i].name;
name_str = XGetAtomName (dpy, atom);
name = (name_str ? intern (name_str) : Qnil);
if (name_str &&
(atom == XA_FONT ||
atom == DEVICE_XATOM_FOUNDRY (d) ||
atom == DEVICE_XATOM_FAMILY_NAME (d) ||
atom == DEVICE_XATOM_WEIGHT_NAME (d) ||
atom == DEVICE_XATOM_SLANT (d) ||
atom == DEVICE_XATOM_SETWIDTH_NAME (d) ||
atom == DEVICE_XATOM_ADD_STYLE_NAME (d) ||
atom == DEVICE_XATOM_SPACING (d) ||
atom == DEVICE_XATOM_CHARSET_REGISTRY (d) ||
atom == DEVICE_XATOM_CHARSET_ENCODING (d) ||
!strcmp (name_str, "CHARSET_COLLECTIONS") ||
!strcmp (name_str, "FONTNAME_REGISTRY") ||
!strcmp (name_str, "CLASSIFICATION") ||
!strcmp (name_str, "COPYRIGHT") ||
!strcmp (name_str, "DEVICE_FONT_NAME") ||
!strcmp (name_str, "FULL_NAME") ||
!strcmp (name_str, "MONOSPACED") ||
!strcmp (name_str, "QUALITY") ||
!strcmp (name_str, "RELATIVE_SET") ||
!strcmp (name_str, "RELATIVE_WEIGHT") ||
!strcmp (name_str, "STYLE")))
{
val_str = XGetAtomName (dpy, props [i].card32);
value = (val_str ? build_string (val_str) : Qnil);
}
else
value = make_number (props [i].card32);
if (name_str) XFree (name_str);
result = Fcons (Fcons (name, value), result);
}
return result;
}
static Lisp_Object
x_list_fonts (Lisp_Object pattern, Lisp_Object device)
{
char **names;
int count = 0;
Lisp_Object result = Qnil;
names = XListFonts (DEVICE_X_DISPLAY (XDEVICE (device)),
string_ext_data (XSTRING (pattern)),
MAX_FONT_COUNT, &count);
while (count--)
result = Fcons (build_string (names [count]), result);
if (names)
XFreeFontNames (names);
return result;
}
#ifdef EPOCH
/************************************************************************/
/* X resources */
/************************************************************************/
Lisp_Object Qx_resourcep;
static Lisp_Object mark_x_resource (Lisp_Object, void (*) (Lisp_Object));
static void print_x_resource (Lisp_Object, Lisp_Object, int);
static void finalize_x_resource (void *, int);
static int x_resource_equal (Lisp_Object o1, Lisp_Object o2, int depth);
static unsigned long x_resource_hash (Lisp_Object obj, int depth);
DEFINE_LRECORD_IMPLEMENTATION ("x-resource", x_resource,
mark_x_resource, print_x_resource,
finalize_x_resource, x_resource_equal,
x_resource_hash, struct Lisp_X_Resource);
static Lisp_Object
mark_x_resource (Lisp_Object obj, void (*markobj) (Lisp_Object))
{
return Qnil;
}
static void
print_x_resource (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
{
char buf[100];
char *default_string = "Resource";
Lisp_Object atom_symbol;
struct device *d = get_x_device (Qnil);
if (print_readably)
error ("printing unreadable object #<x-resource 0x%x>",
XX_RESOURCE (obj)->xid);
atom_symbol = x_atom_to_symbol (d, XX_RESOURCE (obj)->type);
sprintf (buf, "#<x-resource %s 0x%x>",
(NILP (atom_symbol)
? default_string
: string_data (XSTRING (Fsymbol_name (atom_symbol)))),
XX_RESOURCE (obj)->xid);
write_c_string (buf, printcharfun);
}
static void
finalize_x_resource (void *header, int for_disksave)
{
}
static int
x_resource_equal (Lisp_Object o1, Lisp_Object o2, int depth)
{
return (XX_RESOURCE (o1)->xid == XX_RESOURCE (o2)->xid);
}
static unsigned long
x_resource_hash (Lisp_Object obj, int depth)
{
return XX_RESOURCE (obj)->xid;
}
/*
* Epoch equivalent: epoch::resourcep
*/
DEFUN ("x-resource-p", Fx_resource_p, Sx_resource_p, 1, 1, 0,
"Return non-nil if OBJECT is an X resource object.")
(object)
Lisp_Object object;
{
return (X_RESOURCEP (object) ? Qt : Qnil);
}
/*
* Epoch equivalent: epoch::set-resource-type
*/
DEFUN ("x-set-x-resource-type", Fx_set_x_resource_type, Sx_set_x_resource_type,
2, 2, 0,
"Set the type of RESOURE to TYPE. The new type must be an atom.")
(resource, type)
Lisp_Object resource, type;
{
CHECK_X_RESOURCE (resource, 0);
CHECK_X_RESOURCE (type, 0);
if (XX_RESOURCE (type)->type != XA_ATOM)
error ("New type must be an atom");
XX_RESOURCE (resource)->type = XX_RESOURCE (type)->xid;
return resource;
}
#endif /* EPOCH */
/************************************************************************/
/* initialization */
/************************************************************************/
void
syms_of_objects_x (void)
{
#ifdef EPOCH
defsymbol (&Qx_resourcep, "x-resource-p");
defsubr (&Sx_resource_p);
defsubr (&Sx_set_x_resource_type);
#endif /* EPOCH */
}
void
device_type_create_objects_x (void)
{
/* object methods */
DEVICE_HAS_METHOD (x, initialize_color_instance);
DEVICE_HAS_METHOD (x, print_color_instance);
DEVICE_HAS_METHOD (x, finalize_color_instance);
DEVICE_HAS_METHOD (x, color_instance_equal);
DEVICE_HAS_METHOD (x, color_instance_hash);
DEVICE_HAS_METHOD (x, color_instance_rgb_components);
DEVICE_HAS_METHOD (x, valid_color_name_p);
DEVICE_HAS_METHOD (x, initialize_font_instance);
DEVICE_HAS_METHOD (x, mark_font_instance);
DEVICE_HAS_METHOD (x, print_font_instance);
DEVICE_HAS_METHOD (x, finalize_font_instance);
DEVICE_HAS_METHOD (x, font_instance_truename);
DEVICE_HAS_METHOD (x, font_instance_properties);
DEVICE_HAS_METHOD (x, list_fonts);
}
void
vars_of_objects_x (void)
{
DEFVAR_BOOL ("x-handle-non-fully-specified-fonts",&handle_nonfull_spec_fonts,
"If this is true then fonts which do not have all characters specified\n\
will be considered to be proportional width even if they are actually\n\
fixed-width. If this is not done then characters which are supposed to\n\
have 0 width may appear to actually have some width.\n\
\n\
Note: While setting this to t guarantees correct output in all\n\
circumstances, it also causes a noticeable performance hit when using\n\
fixed-width fonts. Since most people don't use characters which could\n\
cause problems this is set to nil by default.");
handle_nonfull_spec_fonts = 0;
}
void
Xatoms_of_objects_x (struct device *d)
{
#define ATOM(x) XInternAtom (DEVICE_X_DISPLAY (d), (x), False)
DEVICE_XATOM_FOUNDRY (d) = ATOM ("FOUNDRY");
DEVICE_XATOM_FAMILY_NAME (d) = ATOM ("FAMILY_NAME");
DEVICE_XATOM_WEIGHT_NAME (d) = ATOM ("WEIGHT_NAME");
DEVICE_XATOM_SLANT (d) = ATOM ("SLANT");
DEVICE_XATOM_SETWIDTH_NAME (d) = ATOM ("SETWIDTH_NAME");
DEVICE_XATOM_ADD_STYLE_NAME (d) = ATOM ("ADD_STYLE_NAME");
DEVICE_XATOM_PIXEL_SIZE (d) = ATOM ("PIXEL_SIZE");
DEVICE_XATOM_POINT_SIZE (d) = ATOM ("POINT_SIZE");
DEVICE_XATOM_RESOLUTION_X (d) = ATOM ("RESOLUTION_X");
DEVICE_XATOM_RESOLUTION_Y (d) = ATOM ("RESOLUTION_Y");
DEVICE_XATOM_SPACING (d) = ATOM ("SPACING");
DEVICE_XATOM_AVERAGE_WIDTH (d) = ATOM ("AVERAGE_WIDTH");
DEVICE_XATOM_CHARSET_REGISTRY (d) = ATOM ("CHARSET_REGISTRY");
DEVICE_XATOM_CHARSET_ENCODING (d) = ATOM ("CHARSET_ENCODING");
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.