2 * Unified font management for GTK.
4 * PuTTY is willing to use both old-style X server-side bitmap
5 * fonts _and_ GTK2/Pango client-side fonts. This requires us to
6 * do a bit of work to wrap the two wildly different APIs into
7 * forms the rest of the code can switch between seamlessly, and
8 * also requires a custom font selector capable of handling both
16 #include <gdk/gdkkeysyms.h>
19 #include <X11/Xutil.h>
20 #include <X11/Xatom.h>
29 * - it would be nice to have a display of the current font name,
30 * and in particular whether it's client- or server-side,
31 * during the progress of the font selector.
33 * - it would be nice if we could move the processing of
34 * underline and VT100 double width into this module, so that
35 * instead of using the ghastly pixmap-stretching technique
36 * everywhere we could tell the Pango backend to scale its
37 * fonts to double size properly and at full resolution.
38 * However, this requires me to learn how to make Pango stretch
39 * text to an arbitrary aspect ratio (for double-width only
40 * text, which perversely is harder than DW+DH), and right now
41 * I haven't the energy.
45 * Ad-hoc vtable mechanism to allow font structures to be
48 * Any instance of `unifont' used in the vtable functions will
49 * actually be the first element of a larger structure containing
50 * data specific to the subtype. This is permitted by the ISO C
51 * provision that one may safely cast between a pointer to a
52 * structure and a pointer to its first element.
55 #define FONTFLAG_CLIENTSIDE 0x0001
56 #define FONTFLAG_SERVERSIDE 0x0002
57 #define FONTFLAG_SERVERALIAS 0x0004
58 #define FONTFLAG_NONMONOSPACED 0x0008
60 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
62 typedef void (*fontsel_add_entry
)(void *ctx
, const char *realfontname
,
63 const char *family
, const char *charset
,
64 const char *style
, const char *stylekey
,
66 const struct unifont_vtable
*fontclass
);
68 struct unifont_vtable
{
70 * `Methods' of the `class'.
72 unifont
*(*create
)(GtkWidget
*widget
, const char *name
, int wide
, int bold
,
73 int shadowoffset
, int shadowalways
);
74 unifont
*(*create_fallback
)(GtkWidget
*widget
, int height
, int wide
,
75 int bold
, int shadowoffset
, int shadowalways
);
76 void (*destroy
)(unifont
*font
);
77 int (*has_glyph
)(unifont
*font
, wchar_t glyph
);
78 void (*draw_text
)(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
79 int x
, int y
, const wchar_t *string
, int len
, int wide
,
80 int bold
, int cellwidth
);
81 void (*enum_fonts
)(GtkWidget
*widget
,
82 fontsel_add_entry callback
, void *callback_ctx
);
83 char *(*canonify_fontname
)(GtkWidget
*widget
, const char *name
, int *size
,
84 int *flags
, int resolve_aliases
);
85 char *(*scale_fontname
)(GtkWidget
*widget
, const char *name
, int size
);
88 * `Static data members' of the `class'.
93 /* ----------------------------------------------------------------------
94 * X11 font implementation, directly using Xlib calls.
97 static int x11font_has_glyph(unifont
*font
, wchar_t glyph
);
98 static void x11font_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
99 int x
, int y
, const wchar_t *string
, int len
,
100 int wide
, int bold
, int cellwidth
);
101 static unifont
*x11font_create(GtkWidget
*widget
, const char *name
,
103 int shadowoffset
, int shadowalways
);
104 static void x11font_destroy(unifont
*font
);
105 static void x11font_enum_fonts(GtkWidget
*widget
,
106 fontsel_add_entry callback
, void *callback_ctx
);
107 static char *x11font_canonify_fontname(GtkWidget
*widget
, const char *name
,
108 int *size
, int *flags
,
109 int resolve_aliases
);
110 static char *x11font_scale_fontname(GtkWidget
*widget
, const char *name
,
116 * Actual font objects. We store a number of these, for
117 * automatically guessed bold and wide variants.
119 * The parallel array `allocated' indicates whether we've
120 * tried to fetch a subfont already (thus distinguishing NULL
121 * because we haven't tried yet from NULL because we tried and
122 * failed, so that we don't keep trying and failing
125 XFontStruct
*fonts
[4];
128 * `sixteen_bit' is true iff the font object is indexed by
129 * values larger than a byte. That is, this flag tells us
130 * whether we use XDrawString or XDrawString16, etc.
134 * `variable' is true iff the font is non-fixed-pitch. This
135 * enables some code which takes greater care over character
136 * positioning during text drawing.
140 * real_charset is the charset used when translating text into the
141 * font's internal encoding inside draw_text(). This need not be
142 * the same as the public_charset provided to the client; for
143 * example, public_charset might be CS_ISO8859_1 while
144 * real_charset is CS_ISO8859_1_X11.
148 * Data passed in to unifont_create().
150 int wide
, bold
, shadowoffset
, shadowalways
;
153 static const struct unifont_vtable x11font_vtable
= {
155 NULL
, /* no fallback fonts in X11 */
160 x11font_canonify_fontname
,
161 x11font_scale_fontname
,
165 static char *x11_guess_derived_font_name(XFontStruct
*xfs
, int bold
, int wide
)
167 Display
*disp
= GDK_DISPLAY();
168 Atom fontprop
= XInternAtom(disp
, "FONT", False
);
170 if (XGetFontProperty(xfs
, fontprop
, &ret
)) {
171 char *name
= XGetAtomName(disp
, (Atom
)ret
);
172 if (name
&& name
[0] == '-') {
174 char *dupname
, *extrafree
= NULL
, *ret
;
178 p
= q
= dupname
= dupstr(name
); /* skip initial minus */
181 while (*p
&& nstr
< lenof(strings
)) {
184 strings
[nstr
++] = p
+1;
189 if (nstr
< lenof(strings
))
190 return NULL
; /* XLFD was malformed */
196 /* 4 is `wideness', which obviously may have changed. */
197 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
198 strings
[4] = strings
[5] = "*";
199 strings
[11] = extrafree
= dupprintf("%d", 2*atoi(strings
[11]));
202 ret
= dupcat("-", strings
[ 0], "-", strings
[ 1], "-", strings
[ 2],
203 "-", strings
[ 3], "-", strings
[ 4], "-", strings
[ 5],
204 "-", strings
[ 6], "-", strings
[ 7], "-", strings
[ 8],
205 "-", strings
[ 9], "-", strings
[10], "-", strings
[11],
206 "-", strings
[12], NULL
);
216 static int x11_font_width(XFontStruct
*xfs
, int sixteen_bit
)
222 return XTextWidth16(xfs
, &space
, 1);
224 return XTextWidth(xfs
, "0", 1);
228 static int x11_font_has_glyph(XFontStruct
*xfs
, int byte1
, int byte2
)
233 * Not to be confused with x11font_has_glyph, which is a method of
234 * the x11font 'class' and hence takes a unifont as argument. This
235 * is the low-level function which grubs about in an actual
236 * XFontStruct to see if a given glyph exists.
238 * We must do this ourselves rather than letting Xlib's
239 * XTextExtents16 do the job, because XTextExtents will helpfully
240 * substitute the font's default_char for any missing glyph and
241 * not tell us it did so, which precisely won't help us find out
242 * which glyphs _are_ missing.
244 * The man page for XQueryFont is rather confusing about how the
245 * per_char array in the XFontStruct is laid out, because it gives
246 * formulae for determining the two-byte X character code _from_
247 * an index into the per_char array. Going the other way, it's
250 * The valid character codes have byte1 between min_byte1 and
251 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
252 * max_char_or_byte2 inclusive. This gives a rectangle of size
253 * (max_byte2-min_byte1+1) by
254 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
255 * rectangle encoded in the per_char array. Hence, given a
256 * character code which is valid in the sense that it falls
257 * somewhere in that rectangle, its index in per_char is given by
260 * x = byte2 - min_char_or_byte2
261 * y = byte1 - min_byte1
262 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
264 * If min_byte1 and min_byte2 are both zero, that's a special case
265 * which can be treated as if min_byte2 was 1 instead, i.e. the
266 * per_char array just runs from min_char_or_byte2 to
267 * max_char_or_byte2 inclusive, and byte1 should always be zero.
270 if (byte2
< xfs
->min_char_or_byte2
|| byte2
> xfs
->max_char_or_byte2
)
273 if (xfs
->min_byte1
== 0 && xfs
->max_byte1
== 0) {
274 index
= byte2
- xfs
->min_char_or_byte2
;
276 if (byte1
< xfs
->min_byte1
|| byte1
> xfs
->max_byte1
)
278 index
= ((byte2
- xfs
->min_char_or_byte2
) +
279 ((byte1
- xfs
->min_byte1
) *
280 (xfs
->max_char_or_byte2
- xfs
->min_char_or_byte2
+ 1)));
283 return (xfs
->per_char
[index
].ascent
+ xfs
->per_char
[index
].descent
> 0 ||
284 xfs
->per_char
[index
].width
> 0);
287 static unifont
*x11font_create(GtkWidget
*widget
, const char *name
,
289 int shadowoffset
, int shadowalways
)
291 struct x11font
*xfont
;
293 Display
*disp
= GDK_DISPLAY();
294 Atom charset_registry
, charset_encoding
, spacing
;
295 unsigned long registry_ret
, encoding_ret
, spacing_ret
;
296 int pubcs
, realcs
, sixteen_bit
, variable
;
299 xfs
= XLoadQueryFont(disp
, name
);
303 charset_registry
= XInternAtom(disp
, "CHARSET_REGISTRY", False
);
304 charset_encoding
= XInternAtom(disp
, "CHARSET_ENCODING", False
);
306 pubcs
= realcs
= CS_NONE
;
310 if (XGetFontProperty(xfs
, charset_registry
, ®istry_ret
) &&
311 XGetFontProperty(xfs
, charset_encoding
, &encoding_ret
)) {
313 reg
= XGetAtomName(disp
, (Atom
)registry_ret
);
314 enc
= XGetAtomName(disp
, (Atom
)encoding_ret
);
316 char *encoding
= dupcat(reg
, "-", enc
, NULL
);
317 pubcs
= realcs
= charset_from_xenc(encoding
);
320 * iso10646-1 is the only wide font encoding we
321 * support. In this case, we expect clients to give us
322 * UTF-8, which this module must internally convert
323 * into 16-bit Unicode.
325 if (!strcasecmp(encoding
, "iso10646-1")) {
327 pubcs
= realcs
= CS_UTF8
;
331 * Hack for X line-drawing characters: if the primary font
332 * is encoded as ISO-8859-1, and has valid glyphs in the
333 * low character positions, it is assumed that those
334 * glyphs are the VT100 line-drawing character set.
336 if (pubcs
== CS_ISO8859_1
) {
338 for (ch
= 1; ch
< 32; ch
++)
339 if (!x11_font_has_glyph(xfs
, 0, ch
))
342 realcs
= CS_ISO8859_1_X11
;
349 spacing
= XInternAtom(disp
, "SPACING", False
);
350 if (XGetFontProperty(xfs
, spacing
, &spacing_ret
)) {
352 spc
= XGetAtomName(disp
, (Atom
)spacing_ret
);
354 if (spc
&& strchr("CcMm", spc
[0]))
358 xfont
= snew(struct x11font
);
359 xfont
->u
.vt
= &x11font_vtable
;
360 xfont
->u
.width
= x11_font_width(xfs
, sixteen_bit
);
361 xfont
->u
.ascent
= xfs
->ascent
;
362 xfont
->u
.descent
= xfs
->descent
;
363 xfont
->u
.height
= xfont
->u
.ascent
+ xfont
->u
.descent
;
364 xfont
->u
.public_charset
= pubcs
;
365 xfont
->u
.want_fallback
= TRUE
;
366 xfont
->real_charset
= realcs
;
367 xfont
->fonts
[0] = xfs
;
368 xfont
->allocated
[0] = TRUE
;
369 xfont
->sixteen_bit
= sixteen_bit
;
370 xfont
->variable
= variable
;
373 xfont
->shadowoffset
= shadowoffset
;
374 xfont
->shadowalways
= shadowalways
;
376 for (i
= 1; i
< lenof(xfont
->fonts
); i
++) {
377 xfont
->fonts
[i
] = NULL
;
378 xfont
->allocated
[i
] = FALSE
;
381 return (unifont
*)xfont
;
384 static void x11font_destroy(unifont
*font
)
386 Display
*disp
= GDK_DISPLAY();
387 struct x11font
*xfont
= (struct x11font
*)font
;
390 for (i
= 0; i
< lenof(xfont
->fonts
); i
++)
392 XFreeFont(disp
, xfont
->fonts
[i
]);
396 static void x11_alloc_subfont(struct x11font
*xfont
, int sfid
)
398 Display
*disp
= GDK_DISPLAY();
399 char *derived_name
= x11_guess_derived_font_name
400 (xfont
->fonts
[0], sfid
& 1, !!(sfid
& 2));
401 xfont
->fonts
[sfid
] = XLoadQueryFont(disp
, derived_name
);
402 xfont
->allocated
[sfid
] = TRUE
;
404 /* Note that xfont->fonts[sfid] may still be NULL, if XLQF failed. */
407 static int x11font_has_glyph(unifont
*font
, wchar_t glyph
)
409 struct x11font
*xfont
= (struct x11font
*)font
;
411 if (xfont
->sixteen_bit
) {
413 * This X font has 16-bit character indices, which means
414 * we can directly use our Unicode input value.
416 return x11_font_has_glyph(xfont
->fonts
[0], glyph
>> 8, glyph
& 0xFF);
419 * This X font has 8-bit indices, so we must convert to the
420 * appropriate character set.
423 int sblen
= wc_to_mb(xfont
->real_charset
, 0, &glyph
, 1,
424 sbstring
, 2, "", NULL
, NULL
);
426 return FALSE
; /* not even in the charset */
428 return x11_font_has_glyph(xfont
->fonts
[0], 0, sbstring
[0]);
432 #if !GTK_CHECK_VERSION(2,0,0)
433 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
436 static void x11font_really_draw_text_16(GdkDrawable
*target
, XFontStruct
*xfs
,
438 const XChar2b
*string
, int nchars
,
440 int fontvariable
, int cellwidth
)
442 Display
*disp
= GDK_DISPLAY();
443 int step
, nsteps
, centre
;
447 * In a variable-pitch font, we draw one character at a
448 * time, and centre it in the character cell.
455 * In a fixed-pitch font, we can draw the whole lot in one go.
462 while (nsteps
-- > 0) {
465 X
+= (cellwidth
- XTextWidth16(xfs
, string
, step
)) / 2;
467 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
470 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
471 X
+ shadowoffset
, y
, string
, step
);
478 static void x11font_really_draw_text(GdkDrawable
*target
, XFontStruct
*xfs
,
480 const char *string
, int nchars
,
482 int fontvariable
, int cellwidth
)
484 Display
*disp
= GDK_DISPLAY();
485 int step
, nsteps
, centre
;
489 * In a variable-pitch font, we draw one character at a
490 * time, and centre it in the character cell.
497 * In a fixed-pitch font, we can draw the whole lot in one go.
504 while (nsteps
-- > 0) {
507 X
+= (cellwidth
- XTextWidth(xfs
, string
, step
)) / 2;
509 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
512 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
513 X
+ shadowoffset
, y
, string
, step
);
520 static void x11font_draw_text(GdkDrawable
*target
, GdkGC
*gdkgc
, unifont
*font
,
521 int x
, int y
, const wchar_t *string
, int len
,
522 int wide
, int bold
, int cellwidth
)
524 Display
*disp
= GDK_DISPLAY();
525 struct x11font
*xfont
= (struct x11font
*)font
;
526 GC gc
= GDK_GC_XGC(gdkgc
);
528 int shadowoffset
= 0;
529 int mult
= (wide ?
2 : 1);
535 * Decide which subfont we're using, and whether we have to
538 if (xfont
->shadowalways
&& bold
) {
539 shadowoffset
= xfont
->shadowoffset
;
542 sfid
= 2 * wide
+ bold
;
543 if (!xfont
->allocated
[sfid
])
544 x11_alloc_subfont(xfont
, sfid
);
545 if (bold
&& !xfont
->fonts
[sfid
]) {
547 shadowoffset
= xfont
->shadowoffset
;
548 sfid
= 2 * wide
+ bold
;
549 if (!xfont
->allocated
[sfid
])
550 x11_alloc_subfont(xfont
, sfid
);
553 if (!xfont
->fonts
[sfid
])
554 return; /* we've tried our best, but no luck */
556 XSetFont(disp
, gc
, xfont
->fonts
[sfid
]->fid
);
558 if (xfont
->sixteen_bit
) {
560 * This X font has 16-bit character indices, which means
561 * we can directly use our Unicode input string.
566 xcs
= snewn(len
, XChar2b
);
567 for (i
= 0; i
< len
; i
++) {
568 xcs
[i
].byte1
= string
[i
] >> 8;
569 xcs
[i
].byte2
= string
[i
];
572 x11font_really_draw_text_16(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
573 xcs
, len
, shadowoffset
,
574 xfont
->variable
, cellwidth
* mult
);
578 * This X font has 8-bit indices, so we must convert to the
579 * appropriate character set.
581 char *sbstring
= snewn(len
+1, char);
582 int sblen
= wc_to_mb(xfont
->real_charset
, 0, string
, len
,
583 sbstring
, len
+1, ".", NULL
, NULL
);
584 x11font_really_draw_text(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
585 sbstring
, sblen
, shadowoffset
,
586 xfont
->variable
, cellwidth
* mult
);
591 static void x11font_enum_fonts(GtkWidget
*widget
,
592 fontsel_add_entry callback
, void *callback_ctx
)
596 int nnames
, i
, max
, tmpsize
;
600 fontnames
= XListFonts(GDK_DISPLAY(), "*", max
, &nnames
);
602 XFreeFontNames(fontnames
);
610 for (i
= 0; i
< nnames
; i
++) {
611 if (fontnames
[i
][0] == '-') {
613 * Dismember an XLFD and convert it into the format
614 * we'll be using in the font selector.
616 char *components
[14];
617 char *p
, *font
, *style
, *stylekey
, *charset
;
618 int j
, weightkey
, slantkey
, setwidthkey
;
619 int thistmpsize
, fontsize
, flags
;
621 thistmpsize
= 4 * strlen(fontnames
[i
]) + 256;
622 if (tmpsize
< thistmpsize
) {
623 tmpsize
= thistmpsize
;
624 tmp
= sresize(tmp
, tmpsize
, char);
626 strcpy(tmp
, fontnames
[i
]);
629 for (j
= 0; j
< 14; j
++) {
633 while (*p
&& *p
!= '-')
639 * Font name is made up of fields 0 and 1, in reverse
640 * order with parentheses. (This is what the GTK 1.2 X
641 * font selector does, and it seems to come out
642 * looking reasonably sensible.)
645 p
+= 1 + sprintf(p
, "%s (%s)", components
[1], components
[0]);
648 * Charset is made up of fields 12 and 13.
651 p
+= 1 + sprintf(p
, "%s-%s", components
[12], components
[13]);
654 * Style is a mixture of quite a lot of the fields,
655 * with some strange formatting.
658 p
+= sprintf(p
, "%s", components
[2][0] ? components
[2] :
660 if (!g_strcasecmp(components
[3], "i"))
661 p
+= sprintf(p
, " italic");
662 else if (!g_strcasecmp(components
[3], "o"))
663 p
+= sprintf(p
, " oblique");
664 else if (!g_strcasecmp(components
[3], "ri"))
665 p
+= sprintf(p
, " reverse italic");
666 else if (!g_strcasecmp(components
[3], "ro"))
667 p
+= sprintf(p
, " reverse oblique");
668 else if (!g_strcasecmp(components
[3], "ot"))
669 p
+= sprintf(p
, " other-slant");
670 if (components
[4][0] && g_strcasecmp(components
[4], "normal"))
671 p
+= sprintf(p
, " %s", components
[4]);
672 if (!g_strcasecmp(components
[10], "m"))
673 p
+= sprintf(p
, " [M]");
674 if (!g_strcasecmp(components
[10], "c"))
675 p
+= sprintf(p
, " [C]");
676 if (components
[5][0])
677 p
+= sprintf(p
, " %s", components
[5]);
680 * Style key is the same stuff as above, but with a
681 * couple of transformations done on it to make it
682 * sort more sensibly.
686 if (!g_strcasecmp(components
[2], "medium") ||
687 !g_strcasecmp(components
[2], "regular") ||
688 !g_strcasecmp(components
[2], "normal") ||
689 !g_strcasecmp(components
[2], "book"))
691 else if (!g_strncasecmp(components
[2], "demi", 4) ||
692 !g_strncasecmp(components
[2], "semi", 4))
696 if (!g_strcasecmp(components
[3], "r"))
698 else if (!g_strncasecmp(components
[3], "r", 1))
702 if (!g_strcasecmp(components
[4], "normal"))
707 p
+= sprintf(p
, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
709 (int)strlen(components
[2]), components
[2],
711 (int)strlen(components
[3]), components
[3],
713 (int)strlen(components
[4]), components
[4],
714 (int)strlen(components
[10]), components
[10],
715 (int)strlen(components
[5]), components
[5]);
717 assert(p
- tmp
< thistmpsize
);
720 * Size is in pixels, for our application, so we
721 * derive it directly from the pixel size field,
724 fontsize
= atoi(components
[6]);
727 * Flags: we need to know whether this is a monospaced
728 * font, which we do by examining the spacing field
731 flags
= FONTFLAG_SERVERSIDE
;
732 if (!strchr("CcMm", components
[10][0]))
733 flags
|= FONTFLAG_NONMONOSPACED
;
736 * Not sure why, but sometimes the X server will
737 * deliver dummy font types in which fontsize comes
738 * out as zero. Filter those out.
741 callback(callback_ctx
, fontnames
[i
], font
, charset
,
742 style
, stylekey
, fontsize
, flags
, &x11font_vtable
);
745 * This isn't an XLFD, so it must be an alias.
746 * Transmit it with mostly null data.
748 * It would be nice to work out if it's monospaced
749 * here, but at the moment I can't see that being
750 * anything but computationally hideous. Ah well.
752 callback(callback_ctx
, fontnames
[i
], fontnames
[i
], NULL
,
753 NULL
, NULL
, 0, FONTFLAG_SERVERALIAS
, &x11font_vtable
);
756 XFreeFontNames(fontnames
);
759 static char *x11font_canonify_fontname(GtkWidget
*widget
, const char *name
,
760 int *size
, int *flags
,
764 * When given an X11 font name to try to make sense of for a
765 * font selector, we must attempt to load it (to see if it
766 * exists), and then canonify it by extracting its FONT
767 * property, which should give its full XLFD even if what we
768 * originally had was a wildcard.
770 * However, we must carefully avoid canonifying font
771 * _aliases_, unless specifically asked to, because the font
772 * selector treats them as worthwhile in their own right.
775 Display
*disp
= GDK_DISPLAY();
776 Atom fontprop
, fontprop2
;
779 xfs
= XLoadQueryFont(disp
, name
);
782 return NULL
; /* didn't make sense to us, sorry */
784 fontprop
= XInternAtom(disp
, "FONT", False
);
786 if (XGetFontProperty(xfs
, fontprop
, &ret
)) {
787 char *newname
= XGetAtomName(disp
, (Atom
)ret
);
789 unsigned long fsize
= 12;
791 fontprop2
= XInternAtom(disp
, "PIXEL_SIZE", False
);
792 if (XGetFontProperty(xfs
, fontprop2
, &fsize
) && fsize
> 0) {
794 XFreeFont(disp
, xfs
);
796 if (name
[0] == '-' || resolve_aliases
)
797 *flags
= FONTFLAG_SERVERSIDE
;
799 *flags
= FONTFLAG_SERVERALIAS
;
801 return dupstr(name
[0] == '-' || resolve_aliases ?
807 XFreeFont(disp
, xfs
);
809 return NULL
; /* something went wrong */
812 static char *x11font_scale_fontname(GtkWidget
*widget
, const char *name
,
815 return NULL
; /* shan't */
818 #if GTK_CHECK_VERSION(2,0,0)
820 /* ----------------------------------------------------------------------
821 * Pango font implementation (for GTK 2 only).
824 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
825 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
828 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
);
829 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
830 int x
, int y
, const wchar_t *string
, int len
,
831 int wide
, int bold
, int cellwidth
);
832 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
834 int shadowoffset
, int shadowalways
);
835 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
837 int shadowoffset
, int shadowalways
);
838 static void pangofont_destroy(unifont
*font
);
839 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
841 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
842 int *size
, int *flags
,
843 int resolve_aliases
);
844 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
852 PangoFontDescription
*desc
;
855 * The containing widget.
859 * Data passed in to unifont_create().
861 int bold
, shadowoffset
, shadowalways
;
864 static const struct unifont_vtable pangofont_vtable
= {
866 pangofont_create_fallback
,
870 pangofont_enum_fonts
,
871 pangofont_canonify_fontname
,
872 pangofont_scale_fontname
,
877 * This function is used to rigorously validate a
878 * PangoFontDescription. Later versions of Pango have a nasty
879 * habit of accepting _any_ old string as input to
880 * pango_font_description_from_string and returning a font
881 * description which can actually be used to display text, even if
882 * they have to do it by falling back to their most default font.
883 * This is doubtless helpful in some situations, but not here,
884 * because we need to know if a Pango font string actually _makes
885 * sense_ in order to fall back to treating it as an X font name
886 * if it doesn't. So we check that the font family is actually one
887 * supported by Pango.
889 static int pangofont_check_desc_makes_sense(PangoContext
*ctx
,
890 PangoFontDescription
*desc
)
892 #ifndef PANGO_PRE_1POINT6
895 PangoFontFamily
**families
;
896 int i
, nfamilies
, matched
;
899 * Ask Pango for a list of font families, and iterate through
900 * them to see if one of them matches the family in the
901 * PangoFontDescription.
903 #ifndef PANGO_PRE_1POINT6
904 map
= pango_context_get_font_map(ctx
);
907 pango_font_map_list_families(map
, &families
, &nfamilies
);
909 pango_context_list_families(ctx
, &families
, &nfamilies
);
913 for (i
= 0; i
< nfamilies
; i
++) {
914 if (!g_strcasecmp(pango_font_family_get_name(families
[i
]),
915 pango_font_description_get_family(desc
))) {
925 static unifont
*pangofont_create_internal(GtkWidget
*widget
,
927 PangoFontDescription
*desc
,
929 int shadowoffset
, int shadowalways
)
931 struct pangofont
*pfont
;
932 #ifndef PANGO_PRE_1POINT6
936 PangoFontMetrics
*metrics
;
938 #ifndef PANGO_PRE_1POINT6
939 map
= pango_context_get_font_map(ctx
);
941 pango_font_description_free(desc
);
944 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
945 pango_context_get_language(ctx
));
947 fset
= pango_context_load_fontset(ctx
, desc
,
948 pango_context_get_language(ctx
));
951 pango_font_description_free(desc
);
954 metrics
= pango_fontset_get_metrics(fset
);
956 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
957 pango_font_description_free(desc
);
958 g_object_unref(fset
);
962 pfont
= snew(struct pangofont
);
963 pfont
->u
.vt
= &pangofont_vtable
;
965 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics
));
966 pfont
->u
.ascent
= PANGO_PIXELS(pango_font_metrics_get_ascent(metrics
));
967 pfont
->u
.descent
= PANGO_PIXELS(pango_font_metrics_get_descent(metrics
));
968 pfont
->u
.height
= pfont
->u
.ascent
+ pfont
->u
.descent
;
969 pfont
->u
.want_fallback
= FALSE
;
970 /* The Pango API is hardwired to UTF-8 */
971 pfont
->u
.public_charset
= CS_UTF8
;
974 pfont
->widget
= widget
;
976 pfont
->shadowoffset
= shadowoffset
;
977 pfont
->shadowalways
= shadowalways
;
979 pango_font_metrics_unref(metrics
);
981 return (unifont
*)pfont
;
984 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
986 int shadowoffset
, int shadowalways
)
989 PangoFontDescription
*desc
;
991 desc
= pango_font_description_from_string(name
);
994 ctx
= gtk_widget_get_pango_context(widget
);
996 pango_font_description_free(desc
);
999 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1000 pango_font_description_free(desc
);
1003 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1004 shadowoffset
, shadowalways
);
1007 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
1009 int shadowoffset
, int shadowalways
)
1012 PangoFontDescription
*desc
;
1014 desc
= pango_font_description_from_string("Monospace");
1017 ctx
= gtk_widget_get_pango_context(widget
);
1019 pango_font_description_free(desc
);
1022 pango_font_description_set_absolute_size(desc
, height
* PANGO_SCALE
);
1023 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1024 shadowoffset
, shadowalways
);
1027 static void pangofont_destroy(unifont
*font
)
1029 struct pangofont
*pfont
= (struct pangofont
*)font
;
1030 pango_font_description_free(pfont
->desc
);
1031 g_object_unref(pfont
->fset
);
1035 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
)
1037 /* Pango implements font fallback, so assume it has everything */
1041 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1042 int x
, int y
, const wchar_t *string
, int len
,
1043 int wide
, int bold
, int cellwidth
)
1045 struct pangofont
*pfont
= (struct pangofont
*)font
;
1046 PangoLayout
*layout
;
1047 PangoRectangle rect
;
1048 char *utfstring
, *utfptr
;
1050 int shadowbold
= FALSE
;
1055 y
-= pfont
->u
.ascent
;
1057 layout
= pango_layout_new(gtk_widget_get_pango_context(pfont
->widget
));
1058 pango_layout_set_font_description(layout
, pfont
->desc
);
1059 if (bold
> pfont
->bold
) {
1060 if (pfont
->shadowalways
)
1063 PangoFontDescription
*desc2
=
1064 pango_font_description_copy_static(pfont
->desc
);
1065 pango_font_description_set_weight(desc2
, PANGO_WEIGHT_BOLD
);
1066 pango_layout_set_font_description(layout
, desc2
);
1071 * Pango always expects UTF-8, so convert the input wide character
1074 utfstring
= snewn(len
*6+1, char); /* UTF-8 has max 6 bytes/char */
1075 utflen
= wc_to_mb(CS_UTF8
, 0, string
, len
,
1076 utfstring
, len
*6+1, ".", NULL
, NULL
);
1079 while (utflen
> 0) {
1083 * We want to display every character from this string in
1084 * the centre of its own character cell. In the worst case,
1085 * this requires a separate text-drawing call for each
1086 * character; but in the common case where the font is
1087 * properly fixed-width, we can draw many characters in one
1088 * go which is much faster.
1090 * This still isn't really ideal. If you look at what
1091 * happens in the X protocol as a result of all of this, you
1092 * find - naturally enough - that each call to
1093 * gdk_draw_layout() generates a separate set of X RENDER
1094 * operations involving creating a picture, setting a clip
1095 * rectangle, doing some drawing and undoing the whole lot.
1096 * In an ideal world, we should _always_ be able to turn the
1097 * contents of this loop into a single RenderCompositeGlyphs
1098 * operation which internally specifies inter-character
1099 * deltas to get the spacing right, which would give us full
1100 * speed _even_ in the worst case of a non-fixed-width font.
1101 * However, Pango's architecture and documentation are so
1102 * unhelpful that I have no idea how if at all to persuade
1107 * Start by extracting a single UTF-8 character from the
1111 while (clen
< utflen
&&
1112 (unsigned char)utfptr
[clen
] >= 0x80 &&
1113 (unsigned char)utfptr
[clen
] < 0xC0)
1118 * If it's a right-to-left character, we must display it on
1119 * its own, to stop Pango helpfully re-reversing our already
1122 if (!is_rtl(string
[0])) {
1125 * See if that character has the width we expect.
1127 pango_layout_set_text(layout
, utfptr
, clen
);
1128 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1130 if (rect
.width
== cellwidth
) {
1132 * Try extracting more characters, for as long as they
1133 * stay well-behaved.
1135 while (clen
< utflen
) {
1137 clen
++; /* skip UTF-8 introducer byte */
1138 while (clen
< utflen
&&
1139 (unsigned char)utfptr
[clen
] >= 0x80 &&
1140 (unsigned char)utfptr
[clen
] < 0xC0)
1143 pango_layout_set_text(layout
, utfptr
, clen
);
1144 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1145 if (rect
.width
!= n
* cellwidth
) {
1154 pango_layout_set_text(layout
, utfptr
, clen
);
1155 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1156 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2,
1157 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1159 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2 + pfont
->shadowoffset
,
1160 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1170 g_object_unref(layout
);
1174 * Dummy size value to be used when converting a
1175 * PangoFontDescription of a scalable font to a string for
1178 #define PANGO_DUMMY_SIZE 12
1180 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
1184 #ifndef PANGO_PRE_1POINT6
1187 PangoFontFamily
**families
;
1190 ctx
= gtk_widget_get_pango_context(widget
);
1195 * Ask Pango for a list of font families, and iterate through
1198 #ifndef PANGO_PRE_1POINT6
1199 map
= pango_context_get_font_map(ctx
);
1202 pango_font_map_list_families(map
, &families
, &nfamilies
);
1204 pango_context_list_families(ctx
, &families
, &nfamilies
);
1206 for (i
= 0; i
< nfamilies
; i
++) {
1207 PangoFontFamily
*family
= families
[i
];
1208 const char *familyname
;
1210 PangoFontFace
**faces
;
1214 * Set up our flags for this font family, and get the name
1217 flags
= FONTFLAG_CLIENTSIDE
;
1218 #ifndef PANGO_PRE_1POINT4
1220 * In very early versions of Pango, we can't tell
1221 * monospaced fonts from non-monospaced.
1223 if (!pango_font_family_is_monospace(family
))
1224 flags
|= FONTFLAG_NONMONOSPACED
;
1226 familyname
= pango_font_family_get_name(family
);
1229 * Go through the available font faces in this family.
1231 pango_font_family_list_faces(family
, &faces
, &nfaces
);
1232 for (j
= 0; j
< nfaces
; j
++) {
1233 PangoFontFace
*face
= faces
[j
];
1234 PangoFontDescription
*desc
;
1235 const char *facename
;
1237 int k
, nsizes
, dummysize
;
1240 * Get the face name string.
1242 facename
= pango_font_face_get_face_name(face
);
1245 * Set up a font description with what we've got so
1246 * far. We'll fill in the size field manually and then
1247 * call pango_font_description_to_string() to give the
1248 * full real name of the specific font.
1250 desc
= pango_font_face_describe(face
);
1253 * See if this font has a list of specific sizes.
1255 #ifndef PANGO_PRE_1POINT4
1256 pango_font_face_list_sizes(face
, &sizes
, &nsizes
);
1259 * In early versions of Pango, that call wasn't
1260 * supported; we just have to assume everything is
1267 * Write a single entry with a dummy size.
1269 dummysize
= PANGO_DUMMY_SIZE
* PANGO_SCALE
;
1275 * If so, go through them one by one.
1277 for (k
= 0; k
< nsizes
; k
++) {
1281 pango_font_description_set_size(desc
, sizes
[k
]);
1283 fullname
= pango_font_description_to_string(desc
);
1286 * Construct the sorting key for font styles.
1292 n
= pango_font_description_get_weight(desc
);
1293 /* Weight: normal, then lighter, then bolder */
1294 if (n
<= PANGO_WEIGHT_NORMAL
)
1295 n
= PANGO_WEIGHT_NORMAL
- n
;
1296 p
+= sprintf(p
, "%4d", n
);
1298 n
= pango_font_description_get_style(desc
);
1299 p
+= sprintf(p
, " %2d", n
);
1301 n
= pango_font_description_get_stretch(desc
);
1302 /* Stretch: closer to normal sorts earlier */
1303 n
= 2 * abs(PANGO_STRETCH_NORMAL
- n
) +
1304 (n
< PANGO_STRETCH_NORMAL
);
1305 p
+= sprintf(p
, " %2d", n
);
1307 n
= pango_font_description_get_variant(desc
);
1308 p
+= sprintf(p
, " %2d", n
);
1313 * Got everything. Hand off to the callback.
1314 * (The charset string is NULL, because only
1315 * server-side X fonts use it.)
1317 callback(callback_ctx
, fullname
, familyname
, NULL
, facename
,
1319 (sizes
== &dummysize ?
0 : PANGO_PIXELS(sizes
[k
])),
1320 flags
, &pangofont_vtable
);
1324 if (sizes
!= &dummysize
)
1327 pango_font_description_free(desc
);
1334 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
1335 int *size
, int *flags
,
1336 int resolve_aliases
)
1339 * When given a Pango font name to try to make sense of for a
1340 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1341 * extract its original size (in pixels) into the `size' field.
1344 #ifndef PANGO_PRE_1POINT6
1347 PangoFontDescription
*desc
;
1349 PangoFontMetrics
*metrics
;
1350 char *newname
, *retname
;
1352 desc
= pango_font_description_from_string(name
);
1355 ctx
= gtk_widget_get_pango_context(widget
);
1357 pango_font_description_free(desc
);
1360 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1361 pango_font_description_free(desc
);
1364 #ifndef PANGO_PRE_1POINT6
1365 map
= pango_context_get_font_map(ctx
);
1367 pango_font_description_free(desc
);
1370 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
1371 pango_context_get_language(ctx
));
1373 fset
= pango_context_load_fontset(ctx
, desc
,
1374 pango_context_get_language(ctx
));
1377 pango_font_description_free(desc
);
1380 metrics
= pango_fontset_get_metrics(fset
);
1382 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
1383 pango_font_description_free(desc
);
1384 g_object_unref(fset
);
1388 *size
= PANGO_PIXELS(pango_font_description_get_size(desc
));
1389 *flags
= FONTFLAG_CLIENTSIDE
;
1390 pango_font_description_set_size(desc
, PANGO_DUMMY_SIZE
* PANGO_SCALE
);
1391 newname
= pango_font_description_to_string(desc
);
1392 retname
= dupstr(newname
);
1395 pango_font_metrics_unref(metrics
);
1396 pango_font_description_free(desc
);
1397 g_object_unref(fset
);
1402 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
1405 PangoFontDescription
*desc
;
1406 char *newname
, *retname
;
1408 desc
= pango_font_description_from_string(name
);
1411 pango_font_description_set_size(desc
, size
* PANGO_SCALE
);
1412 newname
= pango_font_description_to_string(desc
);
1413 retname
= dupstr(newname
);
1415 pango_font_description_free(desc
);
1420 #endif /* GTK_CHECK_VERSION(2,0,0) */
1422 /* ----------------------------------------------------------------------
1423 * Outermost functions which do the vtable dispatch.
1427 * Complete list of font-type subclasses. Listed in preference
1428 * order for unifont_create(). (That is, in the extremely unlikely
1429 * event that the same font name is valid as both a Pango and an
1430 * X11 font, it will be interpreted as the former in the absence
1431 * of an explicit type-disambiguating prefix.)
1433 * The 'multifont' subclass is omitted here, as discussed above.
1435 static const struct unifont_vtable
*unifont_types
[] = {
1436 #if GTK_CHECK_VERSION(2,0,0)
1443 * Function which takes a font name and processes the optional
1444 * scheme prefix. Returns the tail of the font name suitable for
1445 * passing to individual font scheme functions, and also provides
1446 * a subrange of the unifont_types[] array above.
1448 * The return values `start' and `end' denote a half-open interval
1449 * in unifont_types[]; that is, the correct way to iterate over
1452 * for (i = start; i < end; i++) {...}
1454 static const char *unifont_do_prefix(const char *name
, int *start
, int *end
)
1456 int colonpos
= strcspn(name
, ":");
1459 if (name
[colonpos
]) {
1461 * There's a colon prefix on the font name. Use it to work
1462 * out which subclass to use.
1464 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1465 if (strlen(unifont_types
[i
]->prefix
) == colonpos
&&
1466 !strncmp(unifont_types
[i
]->prefix
, name
, colonpos
)) {
1469 return name
+ colonpos
+ 1;
1473 * None matched, so return an empty scheme list to prevent
1474 * any scheme from being called at all.
1477 return name
+ colonpos
+ 1;
1480 * No colon prefix, so just use all the subclasses.
1483 *end
= lenof(unifont_types
);
1488 unifont
*unifont_create(GtkWidget
*widget
, const char *name
, int wide
,
1489 int bold
, int shadowoffset
, int shadowalways
)
1493 name
= unifont_do_prefix(name
, &start
, &end
);
1495 for (i
= start
; i
< end
; i
++) {
1496 unifont
*ret
= unifont_types
[i
]->create(widget
, name
, wide
, bold
,
1497 shadowoffset
, shadowalways
);
1501 return NULL
; /* font not found in any scheme */
1504 void unifont_destroy(unifont
*font
)
1506 font
->vt
->destroy(font
);
1509 void unifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1510 int x
, int y
, const wchar_t *string
, int len
,
1511 int wide
, int bold
, int cellwidth
)
1513 font
->vt
->draw_text(target
, gc
, font
, x
, y
, string
, len
,
1514 wide
, bold
, cellwidth
);
1517 /* ----------------------------------------------------------------------
1518 * Multiple-font wrapper. This is a type of unifont which encapsulates
1519 * up to two other unifonts, permitting missing glyphs in the main
1520 * font to be filled in by a fallback font.
1522 * This is a type of unifont just like the previous two, but it has a
1523 * separate constructor which is manually called by the client, so it
1524 * doesn't appear in the list of available font types enumerated by
1525 * unifont_create. This means it's not used by unifontsel either, so
1526 * it doesn't need to support any methods except draw_text and
1530 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1531 int x
, int y
, const wchar_t *string
, int len
,
1532 int wide
, int bold
, int cellwidth
);
1533 static void multifont_destroy(unifont
*font
);
1541 static const struct unifont_vtable multifont_vtable
= {
1542 NULL
, /* creation is done specially */
1546 multifont_draw_text
,
1553 unifont
*multifont_create(GtkWidget
*widget
, const char *name
,
1555 int shadowoffset
, int shadowalways
)
1558 unifont
*font
, *fallback
;
1559 struct multifont
*mfont
;
1561 font
= unifont_create(widget
, name
, wide
, bold
,
1562 shadowoffset
, shadowalways
);
1566 if (font
->want_fallback
) {
1567 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1568 if (unifont_types
[i
]->create_fallback
) {
1569 fallback
= unifont_types
[i
]->create_fallback
1570 (widget
, font
->height
, wide
, bold
,
1571 shadowoffset
, shadowalways
);
1579 * Construct our multifont. Public members are all copied from the
1580 * primary font we're wrapping.
1582 mfont
= snew(struct multifont
);
1583 mfont
->u
.vt
= &multifont_vtable
;
1584 mfont
->u
.width
= font
->width
;
1585 mfont
->u
.ascent
= font
->ascent
;
1586 mfont
->u
.descent
= font
->descent
;
1587 mfont
->u
.height
= font
->height
;
1588 mfont
->u
.public_charset
= font
->public_charset
;
1589 mfont
->u
.want_fallback
= FALSE
; /* shouldn't be needed, but just in case */
1591 mfont
->fallback
= fallback
;
1593 return (unifont
*)mfont
;
1596 static void multifont_destroy(unifont
*font
)
1598 struct multifont
*mfont
= (struct multifont
*)font
;
1599 unifont_destroy(mfont
->main
);
1600 if (mfont
->fallback
)
1601 unifont_destroy(mfont
->fallback
);
1605 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1606 int x
, int y
, const wchar_t *string
, int len
,
1607 int wide
, int bold
, int cellwidth
)
1609 struct multifont
*mfont
= (struct multifont
*)font
;
1614 * Find a maximal sequence of characters which are, or are
1615 * not, supported by our main font.
1617 ok
= mfont
->main
->vt
->has_glyph(mfont
->main
, string
[0]);
1620 !mfont
->main
->vt
->has_glyph(mfont
->main
, string
[i
]) == !ok
;
1626 unifont_draw_text(target
, gc
, ok ? mfont
->main
: mfont
->fallback
,
1627 x
, y
, string
, i
, wide
, bold
, cellwidth
);
1634 #if GTK_CHECK_VERSION(2,0,0)
1636 /* ----------------------------------------------------------------------
1637 * Implementation of a unified font selector. Used on GTK 2 only;
1638 * for GTK 1 we still use the standard font selector.
1641 typedef struct fontinfo fontinfo
;
1643 typedef struct unifontsel_internal
{
1644 /* This must be the structure's first element, for cross-casting */
1646 GtkListStore
*family_model
, *style_model
, *size_model
;
1647 GtkWidget
*family_list
, *style_list
, *size_entry
, *size_list
;
1648 GtkWidget
*filter_buttons
[4];
1649 GtkWidget
*preview_area
;
1650 GdkPixmap
*preview_pixmap
;
1651 int preview_width
, preview_height
;
1652 GdkColor preview_fg
, preview_bg
;
1654 tree234
*fonts_by_realname
, *fonts_by_selorder
;
1656 int selsize
, intendedsize
;
1657 int inhibit_response
; /* inhibit callbacks when we change GUI controls */
1658 } unifontsel_internal
;
1661 * The structure held in the tree234s. All the string members are
1662 * part of the same allocated area, so don't need freeing
1667 char *family
, *charset
, *style
, *stylekey
;
1670 * Fallback sorting key, to permit multiple identical entries
1671 * to exist in the selorder tree.
1675 * Indices mapping fontinfo structures to indices in the list
1676 * boxes. sizeindex is irrelevant if the font is scalable
1679 int familyindex
, styleindex
, sizeindex
;
1681 * The class of font.
1683 const struct unifont_vtable
*fontclass
;
1686 struct fontinfo_realname_find
{
1687 const char *realname
;
1691 static int strnullcasecmp(const char *a
, const char *b
)
1696 * If exactly one of the inputs is NULL, it compares before
1699 if ((i
= (!b
) - (!a
)) != 0)
1703 * NULL compares equal.
1709 * Otherwise, ordinary strcasecmp.
1711 return g_strcasecmp(a
, b
);
1714 static int fontinfo_realname_compare(void *av
, void *bv
)
1716 fontinfo
*a
= (fontinfo
*)av
;
1717 fontinfo
*b
= (fontinfo
*)bv
;
1720 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1722 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1723 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1724 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1728 static int fontinfo_realname_find(void *av
, void *bv
)
1730 struct fontinfo_realname_find
*a
= (struct fontinfo_realname_find
*)av
;
1731 fontinfo
*b
= (fontinfo
*)bv
;
1734 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1736 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1737 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1738 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1742 static int fontinfo_selorder_compare(void *av
, void *bv
)
1744 fontinfo
*a
= (fontinfo
*)av
;
1745 fontinfo
*b
= (fontinfo
*)bv
;
1747 if ((i
= strnullcasecmp(a
->family
, b
->family
)) != 0)
1750 * Font class comes immediately after family, so that fonts
1751 * from different classes with the same family
1753 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1754 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1755 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1756 if ((i
= strnullcasecmp(a
->charset
, b
->charset
)) != 0)
1758 if ((i
= strnullcasecmp(a
->stylekey
, b
->stylekey
)) != 0)
1760 if ((i
= strnullcasecmp(a
->style
, b
->style
)) != 0)
1762 if (a
->size
!= b
->size
)
1763 return (a
->size
< b
->size ?
-1 : +1);
1764 if (a
->index
!= b
->index
)
1765 return (a
->index
< b
->index ?
-1 : +1);
1769 static void unifontsel_deselect(unifontsel_internal
*fs
)
1771 fs
->selected
= NULL
;
1772 gtk_list_store_clear(fs
->style_model
);
1773 gtk_list_store_clear(fs
->size_model
);
1774 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
1775 gtk_widget_set_sensitive(fs
->size_entry
, FALSE
);
1778 static void unifontsel_setup_familylist(unifontsel_internal
*fs
)
1781 int i
, listindex
, minpos
= -1, maxpos
= -1;
1782 char *currfamily
= NULL
;
1786 gtk_list_store_clear(fs
->family_model
);
1790 * Search through the font tree for anything matching our
1791 * current filter criteria. When we find one, add its font
1792 * name to the list box.
1794 for (i
= 0 ;; i
++) {
1795 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1797 * info may be NULL if we've just run off the end of the
1798 * tree. We must still do a processing pass in that
1799 * situation, in case we had an unfinished font record in
1802 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1803 info
->familyindex
= -1;
1804 continue; /* we're filtering out this font */
1806 if (!info
|| strnullcasecmp(currfamily
, info
->family
) ||
1807 currflags
!= (info
->flags
& FONTFLAG_SORT_MASK
)) {
1809 * We've either finished a family, or started a new
1813 gtk_list_store_append(fs
->family_model
, &iter
);
1814 gtk_list_store_set(fs
->family_model
, &iter
,
1815 0, currfamily
, 1, minpos
, 2, maxpos
+1, -1);
1820 currfamily
= info
->family
;
1821 currflags
= info
->flags
& FONTFLAG_SORT_MASK
;
1825 break; /* now we're done */
1826 info
->familyindex
= listindex
;
1831 * If we've just filtered out the previously selected font,
1832 * deselect it thoroughly.
1834 if (fs
->selected
&& fs
->selected
->familyindex
< 0)
1835 unifontsel_deselect(fs
);
1838 static void unifontsel_setup_stylelist(unifontsel_internal
*fs
,
1842 int i
, listindex
, minpos
= -1, maxpos
= -1, started
= FALSE
;
1843 char *currcs
= NULL
, *currstyle
= NULL
;
1846 gtk_list_store_clear(fs
->style_model
);
1851 * Search through the font tree for anything matching our
1852 * current filter criteria. When we find one, add its charset
1853 * and/or style name to the list box.
1855 for (i
= start
; i
<= end
; i
++) {
1859 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1861 * info may be NULL if we've just run off the end of the
1862 * relevant data. We must still do a processing pass in
1863 * that situation, in case we had an unfinished font
1864 * record in progress.
1866 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1867 info
->styleindex
= -1;
1868 continue; /* we're filtering out this font */
1870 if (!info
|| !started
|| strnullcasecmp(currcs
, info
->charset
) ||
1871 strnullcasecmp(currstyle
, info
->style
)) {
1873 * We've either finished a style/charset, or started a
1878 gtk_list_store_append(fs
->style_model
, &iter
);
1879 gtk_list_store_set(fs
->style_model
, &iter
,
1880 0, currstyle
, 1, minpos
, 2, maxpos
+1,
1886 if (info
->charset
&& strnullcasecmp(currcs
, info
->charset
)) {
1887 gtk_list_store_append(fs
->style_model
, &iter
);
1888 gtk_list_store_set(fs
->style_model
, &iter
,
1889 0, info
->charset
, 1, -1, 2, -1,
1893 currcs
= info
->charset
;
1894 currstyle
= info
->style
;
1898 break; /* now we're done */
1899 info
->styleindex
= listindex
;
1904 static const int unifontsel_default_sizes
[] = { 10, 12, 14, 16, 20, 24, 32 };
1906 static void unifontsel_setup_sizelist(unifontsel_internal
*fs
,
1914 gtk_list_store_clear(fs
->size_model
);
1918 * Search through the font tree for anything matching our
1919 * current filter criteria. When we find one, add its font
1920 * name to the list box.
1922 for (i
= start
; i
< end
; i
++) {
1923 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1924 if (info
->flags
&~ fs
->filter_flags
) {
1925 info
->sizeindex
= -1;
1926 continue; /* we're filtering out this font */
1929 sprintf(sizetext
, "%d", info
->size
);
1930 info
->sizeindex
= listindex
;
1931 gtk_list_store_append(fs
->size_model
, &iter
);
1932 gtk_list_store_set(fs
->size_model
, &iter
,
1933 0, sizetext
, 1, i
, 2, info
->size
, -1);
1941 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++) {
1942 sprintf(sizetext
, "%d", unifontsel_default_sizes
[j
]);
1943 gtk_list_store_append(fs
->size_model
, &iter
);
1944 gtk_list_store_set(fs
->size_model
, &iter
, 0, sizetext
, 1, i
,
1945 2, unifontsel_default_sizes
[j
], -1);
1952 static void unifontsel_set_filter_buttons(unifontsel_internal
*fs
)
1956 for (i
= 0; i
< lenof(fs
->filter_buttons
); i
++) {
1957 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data
1958 (GTK_OBJECT(fs
->filter_buttons
[i
]),
1960 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs
->filter_buttons
[i
]),
1961 !!(fs
->filter_flags
& flagbit
));
1965 static void unifontsel_draw_preview_text(unifontsel_internal
*fs
)
1968 char *sizename
= NULL
;
1969 fontinfo
*info
= fs
->selected
;
1972 sizename
= info
->fontclass
->scale_fontname
1973 (GTK_WIDGET(fs
->u
.window
), info
->realname
, fs
->selsize
);
1974 font
= info
->fontclass
->create(GTK_WIDGET(fs
->u
.window
),
1975 sizename ? sizename
: info
->realname
,
1976 FALSE
, FALSE
, 0, 0);
1980 if (fs
->preview_pixmap
) {
1981 GdkGC
*gc
= gdk_gc_new(fs
->preview_pixmap
);
1982 gdk_gc_set_foreground(gc
, &fs
->preview_bg
);
1983 gdk_draw_rectangle(fs
->preview_pixmap
, gc
, 1, 0, 0,
1984 fs
->preview_width
, fs
->preview_height
);
1985 gdk_gc_set_foreground(gc
, &fs
->preview_fg
);
1988 * The pangram used here is rather carefully
1989 * constructed: it contains a sequence of very narrow
1990 * letters (`jil') and a pair of adjacent very wide
1993 * If the user selects a proportional font, it will be
1994 * coerced into fixed-width character cells when used
1995 * in the actual terminal window. We therefore display
1996 * it the same way in the preview pane, so as to show
1997 * it the way it will actually be displayed - and we
1998 * deliberately pick a pangram which will show the
1999 * resulting miskerning at its worst.
2001 * We aren't trying to sell people these fonts; we're
2002 * trying to let them make an informed choice. Better
2003 * that they find out the problems with using
2004 * proportional fonts in terminal windows here than
2005 * that they go to the effort of selecting their font
2006 * and _then_ realise it was a mistake.
2008 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2010 L
"bankrupt jilted showmen quiz convex fogey",
2011 41, FALSE
, FALSE
, font
->width
);
2012 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2013 0, font
->ascent
+ font
->height
,
2014 L
"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2015 41, FALSE
, FALSE
, font
->width
);
2017 * The ordering of punctuation here is also selected
2018 * with some specific aims in mind. I put ` and '
2019 * together because some software (and people) still
2020 * use them as matched quotes no matter what Unicode
2021 * might say on the matter, so people can quickly
2022 * check whether they look silly in a candidate font.
2023 * The sequence #_@ is there to let people judge the
2024 * suitability of the underscore as an effectively
2025 * alphabetic character (since that's how it's often
2026 * used in practice, at least by programmers).
2028 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2029 0, font
->ascent
+ font
->height
* 2,
2030 L
"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2031 42, FALSE
, FALSE
, font
->width
);
2034 gdk_window_invalidate_rect(fs
->preview_area
->window
, NULL
, FALSE
);
2037 info
->fontclass
->destroy(font
);
2042 static void unifontsel_select_font(unifontsel_internal
*fs
,
2043 fontinfo
*info
, int size
, int leftlist
,
2044 int size_is_explicit
)
2048 GtkTreePath
*treepath
;
2051 fs
->inhibit_response
= TRUE
;
2053 fs
->selected
= info
;
2055 if (size_is_explicit
)
2056 fs
->intendedsize
= size
;
2058 gtk_widget_set_sensitive(fs
->u
.ok_button
, TRUE
);
2061 * Find the index of this fontinfo in the selorder list.
2064 findpos234(fs
->fonts_by_selorder
, info
, NULL
, &index
);
2068 * Adjust the font selector flags and redo the font family
2069 * list box, if necessary.
2071 if (leftlist
<= 0 &&
2072 (fs
->filter_flags
| info
->flags
) != fs
->filter_flags
) {
2073 fs
->filter_flags
|= info
->flags
;
2074 unifontsel_set_filter_buttons(fs
);
2075 unifontsel_setup_familylist(fs
);
2079 * Find the appropriate family name and select it in the list.
2081 assert(info
->familyindex
>= 0);
2082 treepath
= gtk_tree_path_new_from_indices(info
->familyindex
, -1);
2083 gtk_tree_selection_select_path
2084 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->family_list
)),
2086 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->family_list
),
2087 treepath
, NULL
, FALSE
, 0.0, 0.0);
2088 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, treepath
);
2089 gtk_tree_path_free(treepath
);
2092 * Now set up the font style list.
2094 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
,
2095 1, &minval
, 2, &maxval
, -1);
2097 unifontsel_setup_stylelist(fs
, minval
, maxval
);
2100 * Find the appropriate style name and select it in the list.
2103 assert(info
->styleindex
>= 0);
2104 treepath
= gtk_tree_path_new_from_indices(info
->styleindex
, -1);
2105 gtk_tree_selection_select_path
2106 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->style_list
)),
2108 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->style_list
),
2109 treepath
, NULL
, FALSE
, 0.0, 0.0);
2110 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->style_model
),
2112 gtk_tree_path_free(treepath
);
2115 * And set up the size list.
2117 gtk_tree_model_get(GTK_TREE_MODEL(fs
->style_model
), &iter
,
2118 1, &minval
, 2, &maxval
, -1);
2120 unifontsel_setup_sizelist(fs
, minval
, maxval
);
2123 * Find the appropriate size, and select it in the list.
2126 assert(info
->sizeindex
>= 0);
2127 treepath
= gtk_tree_path_new_from_indices(info
->sizeindex
, -1);
2128 gtk_tree_selection_select_path
2129 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->size_list
)),
2131 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2132 treepath
, NULL
, FALSE
, 0.0, 0.0);
2133 gtk_tree_path_free(treepath
);
2137 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++)
2138 if (unifontsel_default_sizes
[j
] == size
) {
2139 treepath
= gtk_tree_path_new_from_indices(j
, -1);
2140 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs
->size_list
),
2141 treepath
, NULL
, FALSE
);
2142 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2143 treepath
, NULL
, FALSE
, 0.0,
2145 gtk_tree_path_free(treepath
);
2150 * And set up the font size text entry box.
2154 sprintf(sizetext
, "%d", size
);
2155 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), sizetext
);
2159 unifontsel_setup_sizelist(fs
, 0, 0);
2160 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), "");
2164 * Grey out the font size edit box if we're not using a
2167 gtk_entry_set_editable(GTK_ENTRY(fs
->size_entry
), fs
->selected
->size
== 0);
2168 gtk_widget_set_sensitive(fs
->size_entry
, fs
->selected
->size
== 0);
2170 unifontsel_draw_preview_text(fs
);
2172 fs
->inhibit_response
= FALSE
;
2175 static void unifontsel_button_toggled(GtkToggleButton
*tb
, gpointer data
)
2177 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2178 int newstate
= gtk_toggle_button_get_active(tb
);
2180 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(tb
),
2184 newflags
= fs
->filter_flags
| flagbit
;
2186 newflags
= fs
->filter_flags
& ~flagbit
;
2188 if (fs
->filter_flags
!= newflags
) {
2189 fs
->filter_flags
= newflags
;
2190 unifontsel_setup_familylist(fs
);
2194 static void unifontsel_add_entry(void *ctx
, const char *realfontname
,
2195 const char *family
, const char *charset
,
2196 const char *style
, const char *stylekey
,
2197 int size
, int flags
,
2198 const struct unifont_vtable
*fontclass
)
2200 unifontsel_internal
*fs
= (unifontsel_internal
*)ctx
;
2205 totalsize
= sizeof(fontinfo
) + strlen(realfontname
) +
2206 (family ?
strlen(family
) : 0) + (charset ?
strlen(charset
) : 0) +
2207 (style ?
strlen(style
) : 0) + (stylekey ?
strlen(stylekey
) : 0) + 10;
2208 info
= (fontinfo
*)smalloc(totalsize
);
2209 info
->fontclass
= fontclass
;
2210 p
= (char *)info
+ sizeof(fontinfo
);
2212 strcpy(p
, realfontname
);
2219 info
->family
= NULL
;
2225 info
->charset
= NULL
;
2234 strcpy(p
, stylekey
);
2237 info
->stylekey
= NULL
;
2238 assert(p
- (char *)info
<= totalsize
);
2240 info
->flags
= flags
;
2241 info
->index
= count234(fs
->fonts_by_selorder
);
2244 * It's just conceivable that a misbehaving font enumerator
2245 * might tell us about the same font real name more than once,
2246 * in which case we should silently drop the new one.
2248 if (add234(fs
->fonts_by_realname
, info
) != info
) {
2253 * However, we should never get a duplicate key in the
2254 * selorder tree, because the index field carefully
2255 * disambiguates otherwise identical records.
2257 add234(fs
->fonts_by_selorder
, info
);
2260 static fontinfo
*update_for_intended_size(unifontsel_internal
*fs
,
2263 fontinfo info2
, *below
, *above
;
2267 * Copy the info structure. This doesn't copy its dynamic
2268 * string fields, but that's unimportant because all we're
2269 * going to do is to adjust the size field and use it in one
2273 info2
.size
= fs
->intendedsize
;
2276 * Search in the tree to find the fontinfo structure which
2277 * best approximates the size the user last requested.
2279 below
= findrelpos234(fs
->fonts_by_selorder
, &info2
, NULL
,
2281 above
= index234(fs
->fonts_by_selorder
, pos
+1);
2284 * See if we've found it exactly, which is an easy special
2285 * case. If we have, it'll be in `below' and not `above',
2286 * because we did a REL234_LE rather than REL234_LT search.
2288 if (!fontinfo_selorder_compare(&info2
, below
))
2292 * Now we've either found two suitable fonts, one smaller and
2293 * one larger, or we're at one or other extreme end of the
2294 * scale. Find out which, by NULLing out either of below and
2295 * above if it differs from this one in any respect but size
2296 * (and the disambiguating index field). Bear in mind, also,
2297 * that either one might _already_ be NULL if we're at the
2298 * extreme ends of the font list.
2301 info2
.size
= below
->size
;
2302 info2
.index
= below
->index
;
2303 if (fontinfo_selorder_compare(&info2
, below
))
2307 info2
.size
= above
->size
;
2308 info2
.index
= above
->index
;
2309 if (fontinfo_selorder_compare(&info2
, above
))
2314 * Now return whichever of above and below is non-NULL, if
2315 * that's unambiguous.
2323 * And now we really do have to make a choice about whether to
2324 * round up or down. We'll do it by rounding to nearest,
2325 * breaking ties by rounding up.
2327 if (above
->size
- fs
->intendedsize
<= fs
->intendedsize
- below
->size
)
2333 static void family_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2335 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2336 GtkTreeModel
*treemodel
;
2337 GtkTreeIter treeiter
;
2341 if (fs
->inhibit_response
) /* we made this change ourselves */
2344 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2347 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2348 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2349 info
= update_for_intended_size(fs
, info
);
2351 return; /* _shouldn't_ happen unless font list is completely funted */
2353 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2354 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2358 static void style_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2360 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2361 GtkTreeModel
*treemodel
;
2362 GtkTreeIter treeiter
;
2366 if (fs
->inhibit_response
) /* we made this change ourselves */
2369 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2372 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2374 return; /* somehow a charset heading got clicked */
2375 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2376 info
= update_for_intended_size(fs
, info
);
2378 return; /* _shouldn't_ happen unless font list is completely funted */
2380 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2381 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2385 static void size_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2387 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2388 GtkTreeModel
*treemodel
;
2389 GtkTreeIter treeiter
;
2393 if (fs
->inhibit_response
) /* we made this change ourselves */
2396 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2399 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, 2, &size
, -1);
2400 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2401 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: size
, 3, TRUE
);
2404 static void size_entry_changed(GtkEditable
*ed
, gpointer data
)
2406 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2410 if (fs
->inhibit_response
) /* we made this change ourselves */
2413 text
= gtk_entry_get_text(GTK_ENTRY(ed
));
2417 assert(fs
->selected
->size
== 0);
2418 unifontsel_select_font(fs
, fs
->selected
, size
, 3, TRUE
);
2422 static void alias_resolve(GtkTreeView
*treeview
, GtkTreePath
*path
,
2423 GtkTreeViewColumn
*column
, gpointer data
)
2425 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2427 int minval
, newsize
;
2428 fontinfo
*info
, *newinfo
;
2431 if (fs
->inhibit_response
) /* we made this change ourselves */
2434 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, path
);
2435 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
, 1,&minval
, -1);
2436 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2439 struct fontinfo_realname_find f
;
2441 newname
= info
->fontclass
->canonify_fontname
2442 (GTK_WIDGET(fs
->u
.window
), info
->realname
, &newsize
, &flags
, TRUE
);
2444 f
.realname
= newname
;
2446 newinfo
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2450 return; /* font name not in our index */
2451 if (newinfo
== info
)
2452 return; /* didn't change under canonification => not an alias */
2453 unifontsel_select_font(fs
, newinfo
,
2454 newinfo
->size ? newinfo
->size
: newsize
,
2459 static gint
unifontsel_expose_area(GtkWidget
*widget
, GdkEventExpose
*event
,
2462 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2464 if (fs
->preview_pixmap
) {
2465 gdk_draw_pixmap(widget
->window
,
2466 widget
->style
->fg_gc
[GTK_WIDGET_STATE(widget
)],
2468 event
->area
.x
, event
->area
.y
,
2469 event
->area
.x
, event
->area
.y
,
2470 event
->area
.width
, event
->area
.height
);
2475 static gint
unifontsel_configure_area(GtkWidget
*widget
,
2476 GdkEventConfigure
*event
, gpointer data
)
2478 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2479 int ox
, oy
, nx
, ny
, x
, y
;
2482 * Enlarge the pixmap, but never shrink it.
2484 ox
= fs
->preview_width
;
2485 oy
= fs
->preview_height
;
2488 if (x
> ox
|| y
> oy
) {
2489 if (fs
->preview_pixmap
)
2490 gdk_pixmap_unref(fs
->preview_pixmap
);
2492 nx
= (x
> ox ? x
: ox
);
2493 ny
= (y
> oy ? y
: oy
);
2494 fs
->preview_pixmap
= gdk_pixmap_new(widget
->window
, nx
, ny
, -1);
2495 fs
->preview_width
= nx
;
2496 fs
->preview_height
= ny
;
2498 unifontsel_draw_preview_text(fs
);
2501 gdk_window_invalidate_rect(widget
->window
, NULL
, FALSE
);
2506 unifontsel
*unifontsel_new(const char *wintitle
)
2508 unifontsel_internal
*fs
= snew(unifontsel_internal
);
2509 GtkWidget
*table
, *label
, *w
, *ww
, *scroll
;
2510 GtkListStore
*model
;
2511 GtkTreeViewColumn
*column
;
2512 int lists_height
, preview_height
, font_width
, style_width
, size_width
;
2515 fs
->inhibit_response
= FALSE
;
2516 fs
->selected
= NULL
;
2520 * Invent some magic size constants.
2523 label
= gtk_label_new("Quite Long Font Name (Foundry)");
2524 gtk_widget_size_request(label
, &req
);
2525 font_width
= req
.width
;
2526 lists_height
= 14 * req
.height
;
2527 preview_height
= 5 * req
.height
;
2528 gtk_label_set_text(GTK_LABEL(label
), "Italic Extra Condensed");
2529 gtk_widget_size_request(label
, &req
);
2530 style_width
= req
.width
;
2531 gtk_label_set_text(GTK_LABEL(label
), "48000");
2532 gtk_widget_size_request(label
, &req
);
2533 size_width
= req
.width
;
2534 #if GTK_CHECK_VERSION(2,10,0)
2535 g_object_ref_sink(label
);
2536 g_object_unref(label
);
2538 gtk_object_sink(GTK_OBJECT(label
));
2543 * Create the dialog box and initialise the user-visible
2544 * fields in the returned structure.
2546 fs
->u
.user_data
= NULL
;
2547 fs
->u
.window
= GTK_WINDOW(gtk_dialog_new());
2548 gtk_window_set_title(fs
->u
.window
, wintitle
);
2549 fs
->u
.cancel_button
= gtk_dialog_add_button
2550 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_CANCEL
, GTK_RESPONSE_CANCEL
);
2551 fs
->u
.ok_button
= gtk_dialog_add_button
2552 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_OK
, GTK_RESPONSE_OK
);
2553 gtk_widget_grab_default(fs
->u
.ok_button
);
2556 * Now set up the internal fields, including in particular all
2557 * the controls that actually allow the user to select fonts.
2559 table
= gtk_table_new(8, 3, FALSE
);
2560 gtk_widget_show(table
);
2561 gtk_table_set_col_spacings(GTK_TABLE(table
), 8);
2562 #if GTK_CHECK_VERSION(2,4,0)
2563 /* GtkAlignment seems to be the simplest way to put padding round things */
2564 w
= gtk_alignment_new(0, 0, 1, 1);
2565 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2566 gtk_container_add(GTK_CONTAINER(w
), table
);
2571 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fs
->u
.window
)->vbox
),
2574 label
= gtk_label_new_with_mnemonic("_Font:");
2575 gtk_widget_show(label
);
2576 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2577 gtk_table_attach(GTK_TABLE(table
), label
, 0, 1, 0, 1, GTK_FILL
, 0, 0, 0);
2580 * The Font list box displays only a string, but additionally
2581 * stores two integers which give the limits within the
2582 * tree234 of the font entries covered by this list entry.
2584 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2585 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2586 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2587 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2589 column
= gtk_tree_view_column_new_with_attributes
2590 ("Font", gtk_cell_renderer_text_new(),
2591 "text", 0, (char *)NULL
);
2592 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2593 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2594 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2595 "changed", G_CALLBACK(family_changed
), fs
);
2596 g_signal_connect(G_OBJECT(w
), "row-activated",
2597 G_CALLBACK(alias_resolve
), fs
);
2599 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2600 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2602 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2603 gtk_widget_show(scroll
);
2604 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2605 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2606 gtk_widget_set_size_request(scroll
, font_width
, lists_height
);
2607 gtk_table_attach(GTK_TABLE(table
), scroll
, 0, 1, 1, 3, GTK_FILL
,
2608 GTK_EXPAND
| GTK_FILL
, 0, 0);
2609 fs
->family_model
= model
;
2610 fs
->family_list
= w
;
2612 label
= gtk_label_new_with_mnemonic("_Style:");
2613 gtk_widget_show(label
);
2614 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2615 gtk_table_attach(GTK_TABLE(table
), label
, 1, 2, 0, 1, GTK_FILL
, 0, 0, 0);
2618 * The Style list box can contain insensitive elements
2619 * (character set headings for server-side fonts), so we add
2620 * an extra column to the list store to hold that information.
2622 model
= gtk_list_store_new(4, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
,
2624 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2625 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2626 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2628 column
= gtk_tree_view_column_new_with_attributes
2629 ("Style", gtk_cell_renderer_text_new(),
2630 "text", 0, "sensitive", 3, (char *)NULL
);
2631 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2632 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2633 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2634 "changed", G_CALLBACK(style_changed
), fs
);
2636 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2637 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2639 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2640 gtk_widget_show(scroll
);
2641 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2642 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2643 gtk_widget_set_size_request(scroll
, style_width
, lists_height
);
2644 gtk_table_attach(GTK_TABLE(table
), scroll
, 1, 2, 1, 3, GTK_FILL
,
2645 GTK_EXPAND
| GTK_FILL
, 0, 0);
2646 fs
->style_model
= model
;
2649 label
= gtk_label_new_with_mnemonic("Si_ze:");
2650 gtk_widget_show(label
);
2651 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2652 gtk_table_attach(GTK_TABLE(table
), label
, 2, 3, 0, 1, GTK_FILL
, 0, 0, 0);
2655 * The Size label attaches primarily to a text input box so
2656 * that the user can select a size of their choice. The list
2657 * of available sizes is secondary.
2659 fs
->size_entry
= w
= gtk_entry_new();
2660 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2661 gtk_widget_set_size_request(w
, size_width
, -1);
2663 gtk_table_attach(GTK_TABLE(table
), w
, 2, 3, 1, 2, GTK_FILL
, 0, 0, 0);
2664 g_signal_connect(G_OBJECT(w
), "changed", G_CALLBACK(size_entry_changed
),
2667 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2668 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2669 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2671 column
= gtk_tree_view_column_new_with_attributes
2672 ("Size", gtk_cell_renderer_text_new(),
2673 "text", 0, (char *)NULL
);
2674 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2675 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2676 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2677 "changed", G_CALLBACK(size_changed
), fs
);
2679 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2680 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2682 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2683 gtk_widget_show(scroll
);
2684 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2685 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2686 gtk_table_attach(GTK_TABLE(table
), scroll
, 2, 3, 2, 3, GTK_FILL
,
2687 GTK_EXPAND
| GTK_FILL
, 0, 0);
2688 fs
->size_model
= model
;
2694 fs
->preview_area
= gtk_drawing_area_new();
2695 fs
->preview_pixmap
= NULL
;
2696 fs
->preview_width
= 0;
2697 fs
->preview_height
= 0;
2698 fs
->preview_fg
.pixel
= fs
->preview_bg
.pixel
= 0;
2699 fs
->preview_fg
.red
= fs
->preview_fg
.green
= fs
->preview_fg
.blue
= 0x0000;
2700 fs
->preview_bg
.red
= fs
->preview_bg
.green
= fs
->preview_bg
.blue
= 0xFFFF;
2701 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_fg
,
2703 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_bg
,
2705 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "expose_event",
2706 GTK_SIGNAL_FUNC(unifontsel_expose_area
), fs
);
2707 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "configure_event",
2708 GTK_SIGNAL_FUNC(unifontsel_configure_area
), fs
);
2709 gtk_widget_set_size_request(fs
->preview_area
, 1, preview_height
);
2710 gtk_widget_show(fs
->preview_area
);
2711 ww
= fs
->preview_area
;
2712 w
= gtk_frame_new(NULL
);
2713 gtk_container_add(GTK_CONTAINER(w
), ww
);
2715 #if GTK_CHECK_VERSION(2,4,0)
2717 /* GtkAlignment seems to be the simplest way to put padding round things */
2718 w
= gtk_alignment_new(0, 0, 1, 1);
2719 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2720 gtk_container_add(GTK_CONTAINER(w
), ww
);
2724 w
= gtk_frame_new("Preview of font");
2725 gtk_container_add(GTK_CONTAINER(w
), ww
);
2727 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 3, 4,
2728 GTK_EXPAND
| GTK_FILL
, GTK_EXPAND
| GTK_FILL
, 0, 8);
2731 w
= gtk_check_button_new_with_label("Show client-side fonts");
2732 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2733 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE
));
2734 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2735 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2737 fs
->filter_buttons
[i
++] = w
;
2738 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 4, 5, GTK_FILL
, 0, 0, 0);
2739 w
= gtk_check_button_new_with_label("Show server-side fonts");
2740 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2741 GINT_TO_POINTER(FONTFLAG_SERVERSIDE
));
2742 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2743 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2745 fs
->filter_buttons
[i
++] = w
;
2746 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 5, 6, GTK_FILL
, 0, 0, 0);
2747 w
= gtk_check_button_new_with_label("Show server-side font aliases");
2748 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2749 GINT_TO_POINTER(FONTFLAG_SERVERALIAS
));
2750 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2751 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2753 fs
->filter_buttons
[i
++] = w
;
2754 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 6, 7, GTK_FILL
, 0, 0, 0);
2755 w
= gtk_check_button_new_with_label("Show non-monospaced fonts");
2756 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2757 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED
));
2758 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2759 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2761 fs
->filter_buttons
[i
++] = w
;
2762 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 7, 8, GTK_FILL
, 0, 0, 0);
2764 assert(i
== lenof(fs
->filter_buttons
));
2765 fs
->filter_flags
= FONTFLAG_CLIENTSIDE
| FONTFLAG_SERVERSIDE
|
2766 FONTFLAG_SERVERALIAS
;
2767 unifontsel_set_filter_buttons(fs
);
2770 * Go and find all the font names, and set up our master font
2773 fs
->fonts_by_realname
= newtree234(fontinfo_realname_compare
);
2774 fs
->fonts_by_selorder
= newtree234(fontinfo_selorder_compare
);
2775 for (i
= 0; i
< lenof(unifont_types
); i
++)
2776 unifont_types
[i
]->enum_fonts(GTK_WIDGET(fs
->u
.window
),
2777 unifontsel_add_entry
, fs
);
2780 * And set up the initial font names list.
2782 unifontsel_setup_familylist(fs
);
2784 fs
->selsize
= fs
->intendedsize
= 13; /* random default */
2785 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
2787 return (unifontsel
*)fs
;
2790 void unifontsel_destroy(unifontsel
*fontsel
)
2792 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2795 if (fs
->preview_pixmap
)
2796 gdk_pixmap_unref(fs
->preview_pixmap
);
2798 freetree234(fs
->fonts_by_selorder
);
2799 while ((info
= delpos234(fs
->fonts_by_realname
, 0)) != NULL
)
2801 freetree234(fs
->fonts_by_realname
);
2803 gtk_widget_destroy(GTK_WIDGET(fs
->u
.window
));
2807 void unifontsel_set_name(unifontsel
*fontsel
, const char *fontname
)
2809 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2810 int i
, start
, end
, size
, flags
;
2811 const char *fontname2
= NULL
;
2815 * Provide a default if given an empty or null font name.
2817 if (!fontname
|| !*fontname
)
2818 fontname
= "server:fixed";
2821 * Call the canonify_fontname function.
2823 fontname
= unifont_do_prefix(fontname
, &start
, &end
);
2824 for (i
= start
; i
< end
; i
++) {
2825 fontname2
= unifont_types
[i
]->canonify_fontname
2826 (GTK_WIDGET(fs
->u
.window
), fontname
, &size
, &flags
, FALSE
);
2831 return; /* font name not recognised */
2834 * Now look up the canonified font name in our index.
2837 struct fontinfo_realname_find f
;
2838 f
.realname
= fontname2
;
2840 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2844 * If we've found the font, and its size field is either
2845 * correct or zero (the latter indicating a scalable font),
2846 * then we're done. Otherwise, try looking up the original
2847 * font name instead.
2849 if (!info
|| (info
->size
!= size
&& info
->size
!= 0)) {
2850 struct fontinfo_realname_find f
;
2851 f
.realname
= fontname
;
2854 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2855 if (!info
|| info
->size
!= size
)
2856 return; /* font name not in our index */
2860 * Now we've got a fontinfo structure and a font size, so we
2861 * know everything we need to fill in all the fields in the
2864 unifontsel_select_font(fs
, info
, size
, 0, TRUE
);
2867 char *unifontsel_get_name(unifontsel
*fontsel
)
2869 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2875 if (fs
->selected
->size
== 0) {
2876 name
= fs
->selected
->fontclass
->scale_fontname
2877 (GTK_WIDGET(fs
->u
.window
), fs
->selected
->realname
, fs
->selsize
);
2879 char *ret
= dupcat(fs
->selected
->fontclass
->prefix
, ":",
2886 return dupcat(fs
->selected
->fontclass
->prefix
, ":",
2887 fs
->selected
->realname
, NULL
);
2890 #endif /* GTK_CHECK_VERSION(2,0,0) */