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,
429 (unsigned char)sbstring
[0]);
433 #if !GTK_CHECK_VERSION(2,0,0)
434 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
437 static void x11font_really_draw_text_16(GdkDrawable
*target
, XFontStruct
*xfs
,
439 const XChar2b
*string
, int nchars
,
441 int fontvariable
, int cellwidth
)
443 Display
*disp
= GDK_DISPLAY();
444 int step
, nsteps
, centre
;
448 * In a variable-pitch font, we draw one character at a
449 * time, and centre it in the character cell.
456 * In a fixed-pitch font, we can draw the whole lot in one go.
463 while (nsteps
-- > 0) {
466 X
+= (cellwidth
- XTextWidth16(xfs
, string
, step
)) / 2;
468 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
471 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
472 X
+ shadowoffset
, y
, string
, step
);
479 static void x11font_really_draw_text(GdkDrawable
*target
, XFontStruct
*xfs
,
481 const char *string
, int nchars
,
483 int fontvariable
, int cellwidth
)
485 Display
*disp
= GDK_DISPLAY();
486 int step
, nsteps
, centre
;
490 * In a variable-pitch font, we draw one character at a
491 * time, and centre it in the character cell.
498 * In a fixed-pitch font, we can draw the whole lot in one go.
505 while (nsteps
-- > 0) {
508 X
+= (cellwidth
- XTextWidth(xfs
, string
, step
)) / 2;
510 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
513 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
514 X
+ shadowoffset
, y
, string
, step
);
521 static void x11font_draw_text(GdkDrawable
*target
, GdkGC
*gdkgc
, unifont
*font
,
522 int x
, int y
, const wchar_t *string
, int len
,
523 int wide
, int bold
, int cellwidth
)
525 Display
*disp
= GDK_DISPLAY();
526 struct x11font
*xfont
= (struct x11font
*)font
;
527 GC gc
= GDK_GC_XGC(gdkgc
);
529 int shadowoffset
= 0;
530 int mult
= (wide ?
2 : 1);
536 * Decide which subfont we're using, and whether we have to
539 if (xfont
->shadowalways
&& bold
) {
540 shadowoffset
= xfont
->shadowoffset
;
543 sfid
= 2 * wide
+ bold
;
544 if (!xfont
->allocated
[sfid
])
545 x11_alloc_subfont(xfont
, sfid
);
546 if (bold
&& !xfont
->fonts
[sfid
]) {
548 shadowoffset
= xfont
->shadowoffset
;
549 sfid
= 2 * wide
+ bold
;
550 if (!xfont
->allocated
[sfid
])
551 x11_alloc_subfont(xfont
, sfid
);
554 if (!xfont
->fonts
[sfid
])
555 return; /* we've tried our best, but no luck */
557 XSetFont(disp
, gc
, xfont
->fonts
[sfid
]->fid
);
559 if (xfont
->sixteen_bit
) {
561 * This X font has 16-bit character indices, which means
562 * we can directly use our Unicode input string.
567 xcs
= snewn(len
, XChar2b
);
568 for (i
= 0; i
< len
; i
++) {
569 xcs
[i
].byte1
= string
[i
] >> 8;
570 xcs
[i
].byte2
= string
[i
];
573 x11font_really_draw_text_16(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
574 xcs
, len
, shadowoffset
,
575 xfont
->variable
, cellwidth
* mult
);
579 * This X font has 8-bit indices, so we must convert to the
580 * appropriate character set.
582 char *sbstring
= snewn(len
+1, char);
583 int sblen
= wc_to_mb(xfont
->real_charset
, 0, string
, len
,
584 sbstring
, len
+1, ".", NULL
, NULL
);
585 x11font_really_draw_text(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
586 sbstring
, sblen
, shadowoffset
,
587 xfont
->variable
, cellwidth
* mult
);
592 static void x11font_enum_fonts(GtkWidget
*widget
,
593 fontsel_add_entry callback
, void *callback_ctx
)
597 int nnames
, i
, max
, tmpsize
;
601 fontnames
= XListFonts(GDK_DISPLAY(), "*", max
, &nnames
);
603 XFreeFontNames(fontnames
);
611 for (i
= 0; i
< nnames
; i
++) {
612 if (fontnames
[i
][0] == '-') {
614 * Dismember an XLFD and convert it into the format
615 * we'll be using in the font selector.
617 char *components
[14];
618 char *p
, *font
, *style
, *stylekey
, *charset
;
619 int j
, weightkey
, slantkey
, setwidthkey
;
620 int thistmpsize
, fontsize
, flags
;
622 thistmpsize
= 4 * strlen(fontnames
[i
]) + 256;
623 if (tmpsize
< thistmpsize
) {
624 tmpsize
= thistmpsize
;
625 tmp
= sresize(tmp
, tmpsize
, char);
627 strcpy(tmp
, fontnames
[i
]);
630 for (j
= 0; j
< 14; j
++) {
634 while (*p
&& *p
!= '-')
640 * Font name is made up of fields 0 and 1, in reverse
641 * order with parentheses. (This is what the GTK 1.2 X
642 * font selector does, and it seems to come out
643 * looking reasonably sensible.)
646 p
+= 1 + sprintf(p
, "%s (%s)", components
[1], components
[0]);
649 * Charset is made up of fields 12 and 13.
652 p
+= 1 + sprintf(p
, "%s-%s", components
[12], components
[13]);
655 * Style is a mixture of quite a lot of the fields,
656 * with some strange formatting.
659 p
+= sprintf(p
, "%s", components
[2][0] ? components
[2] :
661 if (!g_strcasecmp(components
[3], "i"))
662 p
+= sprintf(p
, " italic");
663 else if (!g_strcasecmp(components
[3], "o"))
664 p
+= sprintf(p
, " oblique");
665 else if (!g_strcasecmp(components
[3], "ri"))
666 p
+= sprintf(p
, " reverse italic");
667 else if (!g_strcasecmp(components
[3], "ro"))
668 p
+= sprintf(p
, " reverse oblique");
669 else if (!g_strcasecmp(components
[3], "ot"))
670 p
+= sprintf(p
, " other-slant");
671 if (components
[4][0] && g_strcasecmp(components
[4], "normal"))
672 p
+= sprintf(p
, " %s", components
[4]);
673 if (!g_strcasecmp(components
[10], "m"))
674 p
+= sprintf(p
, " [M]");
675 if (!g_strcasecmp(components
[10], "c"))
676 p
+= sprintf(p
, " [C]");
677 if (components
[5][0])
678 p
+= sprintf(p
, " %s", components
[5]);
681 * Style key is the same stuff as above, but with a
682 * couple of transformations done on it to make it
683 * sort more sensibly.
687 if (!g_strcasecmp(components
[2], "medium") ||
688 !g_strcasecmp(components
[2], "regular") ||
689 !g_strcasecmp(components
[2], "normal") ||
690 !g_strcasecmp(components
[2], "book"))
692 else if (!g_strncasecmp(components
[2], "demi", 4) ||
693 !g_strncasecmp(components
[2], "semi", 4))
697 if (!g_strcasecmp(components
[3], "r"))
699 else if (!g_strncasecmp(components
[3], "r", 1))
703 if (!g_strcasecmp(components
[4], "normal"))
708 p
+= sprintf(p
, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
710 (int)strlen(components
[2]), components
[2],
712 (int)strlen(components
[3]), components
[3],
714 (int)strlen(components
[4]), components
[4],
715 (int)strlen(components
[10]), components
[10],
716 (int)strlen(components
[5]), components
[5]);
718 assert(p
- tmp
< thistmpsize
);
721 * Size is in pixels, for our application, so we
722 * derive it directly from the pixel size field,
725 fontsize
= atoi(components
[6]);
728 * Flags: we need to know whether this is a monospaced
729 * font, which we do by examining the spacing field
732 flags
= FONTFLAG_SERVERSIDE
;
733 if (!strchr("CcMm", components
[10][0]))
734 flags
|= FONTFLAG_NONMONOSPACED
;
737 * Not sure why, but sometimes the X server will
738 * deliver dummy font types in which fontsize comes
739 * out as zero. Filter those out.
742 callback(callback_ctx
, fontnames
[i
], font
, charset
,
743 style
, stylekey
, fontsize
, flags
, &x11font_vtable
);
746 * This isn't an XLFD, so it must be an alias.
747 * Transmit it with mostly null data.
749 * It would be nice to work out if it's monospaced
750 * here, but at the moment I can't see that being
751 * anything but computationally hideous. Ah well.
753 callback(callback_ctx
, fontnames
[i
], fontnames
[i
], NULL
,
754 NULL
, NULL
, 0, FONTFLAG_SERVERALIAS
, &x11font_vtable
);
757 XFreeFontNames(fontnames
);
760 static char *x11font_canonify_fontname(GtkWidget
*widget
, const char *name
,
761 int *size
, int *flags
,
765 * When given an X11 font name to try to make sense of for a
766 * font selector, we must attempt to load it (to see if it
767 * exists), and then canonify it by extracting its FONT
768 * property, which should give its full XLFD even if what we
769 * originally had was a wildcard.
771 * However, we must carefully avoid canonifying font
772 * _aliases_, unless specifically asked to, because the font
773 * selector treats them as worthwhile in their own right.
776 Display
*disp
= GDK_DISPLAY();
777 Atom fontprop
, fontprop2
;
780 xfs
= XLoadQueryFont(disp
, name
);
783 return NULL
; /* didn't make sense to us, sorry */
785 fontprop
= XInternAtom(disp
, "FONT", False
);
787 if (XGetFontProperty(xfs
, fontprop
, &ret
)) {
788 char *newname
= XGetAtomName(disp
, (Atom
)ret
);
790 unsigned long fsize
= 12;
792 fontprop2
= XInternAtom(disp
, "PIXEL_SIZE", False
);
793 if (XGetFontProperty(xfs
, fontprop2
, &fsize
) && fsize
> 0) {
795 XFreeFont(disp
, xfs
);
797 if (name
[0] == '-' || resolve_aliases
)
798 *flags
= FONTFLAG_SERVERSIDE
;
800 *flags
= FONTFLAG_SERVERALIAS
;
802 return dupstr(name
[0] == '-' || resolve_aliases ?
808 XFreeFont(disp
, xfs
);
810 return NULL
; /* something went wrong */
813 static char *x11font_scale_fontname(GtkWidget
*widget
, const char *name
,
816 return NULL
; /* shan't */
819 #if GTK_CHECK_VERSION(2,0,0)
821 /* ----------------------------------------------------------------------
822 * Pango font implementation (for GTK 2 only).
825 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
826 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
829 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
);
830 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
831 int x
, int y
, const wchar_t *string
, int len
,
832 int wide
, int bold
, int cellwidth
);
833 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
835 int shadowoffset
, int shadowalways
);
836 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
838 int shadowoffset
, int shadowalways
);
839 static void pangofont_destroy(unifont
*font
);
840 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
842 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
843 int *size
, int *flags
,
844 int resolve_aliases
);
845 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
853 PangoFontDescription
*desc
;
856 * The containing widget.
860 * Data passed in to unifont_create().
862 int bold
, shadowoffset
, shadowalways
;
865 static const struct unifont_vtable pangofont_vtable
= {
867 pangofont_create_fallback
,
871 pangofont_enum_fonts
,
872 pangofont_canonify_fontname
,
873 pangofont_scale_fontname
,
878 * This function is used to rigorously validate a
879 * PangoFontDescription. Later versions of Pango have a nasty
880 * habit of accepting _any_ old string as input to
881 * pango_font_description_from_string and returning a font
882 * description which can actually be used to display text, even if
883 * they have to do it by falling back to their most default font.
884 * This is doubtless helpful in some situations, but not here,
885 * because we need to know if a Pango font string actually _makes
886 * sense_ in order to fall back to treating it as an X font name
887 * if it doesn't. So we check that the font family is actually one
888 * supported by Pango.
890 static int pangofont_check_desc_makes_sense(PangoContext
*ctx
,
891 PangoFontDescription
*desc
)
893 #ifndef PANGO_PRE_1POINT6
896 PangoFontFamily
**families
;
897 int i
, nfamilies
, matched
;
900 * Ask Pango for a list of font families, and iterate through
901 * them to see if one of them matches the family in the
902 * PangoFontDescription.
904 #ifndef PANGO_PRE_1POINT6
905 map
= pango_context_get_font_map(ctx
);
908 pango_font_map_list_families(map
, &families
, &nfamilies
);
910 pango_context_list_families(ctx
, &families
, &nfamilies
);
914 for (i
= 0; i
< nfamilies
; i
++) {
915 if (!g_strcasecmp(pango_font_family_get_name(families
[i
]),
916 pango_font_description_get_family(desc
))) {
926 static unifont
*pangofont_create_internal(GtkWidget
*widget
,
928 PangoFontDescription
*desc
,
930 int shadowoffset
, int shadowalways
)
932 struct pangofont
*pfont
;
933 #ifndef PANGO_PRE_1POINT6
937 PangoFontMetrics
*metrics
;
939 #ifndef PANGO_PRE_1POINT6
940 map
= pango_context_get_font_map(ctx
);
942 pango_font_description_free(desc
);
945 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
946 pango_context_get_language(ctx
));
948 fset
= pango_context_load_fontset(ctx
, desc
,
949 pango_context_get_language(ctx
));
952 pango_font_description_free(desc
);
955 metrics
= pango_fontset_get_metrics(fset
);
957 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
958 pango_font_description_free(desc
);
959 g_object_unref(fset
);
963 pfont
= snew(struct pangofont
);
964 pfont
->u
.vt
= &pangofont_vtable
;
966 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics
));
967 pfont
->u
.ascent
= PANGO_PIXELS(pango_font_metrics_get_ascent(metrics
));
968 pfont
->u
.descent
= PANGO_PIXELS(pango_font_metrics_get_descent(metrics
));
969 pfont
->u
.height
= pfont
->u
.ascent
+ pfont
->u
.descent
;
970 pfont
->u
.want_fallback
= FALSE
;
971 /* The Pango API is hardwired to UTF-8 */
972 pfont
->u
.public_charset
= CS_UTF8
;
975 pfont
->widget
= widget
;
977 pfont
->shadowoffset
= shadowoffset
;
978 pfont
->shadowalways
= shadowalways
;
980 pango_font_metrics_unref(metrics
);
982 return (unifont
*)pfont
;
985 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
987 int shadowoffset
, int shadowalways
)
990 PangoFontDescription
*desc
;
992 desc
= pango_font_description_from_string(name
);
995 ctx
= gtk_widget_get_pango_context(widget
);
997 pango_font_description_free(desc
);
1000 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1001 pango_font_description_free(desc
);
1004 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1005 shadowoffset
, shadowalways
);
1008 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
1010 int shadowoffset
, int shadowalways
)
1013 PangoFontDescription
*desc
;
1015 desc
= pango_font_description_from_string("Monospace");
1018 ctx
= gtk_widget_get_pango_context(widget
);
1020 pango_font_description_free(desc
);
1023 pango_font_description_set_absolute_size(desc
, height
* PANGO_SCALE
);
1024 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1025 shadowoffset
, shadowalways
);
1028 static void pangofont_destroy(unifont
*font
)
1030 struct pangofont
*pfont
= (struct pangofont
*)font
;
1031 pango_font_description_free(pfont
->desc
);
1032 g_object_unref(pfont
->fset
);
1036 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
)
1038 /* Pango implements font fallback, so assume it has everything */
1042 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1043 int x
, int y
, const wchar_t *string
, int len
,
1044 int wide
, int bold
, int cellwidth
)
1046 struct pangofont
*pfont
= (struct pangofont
*)font
;
1047 PangoLayout
*layout
;
1048 PangoRectangle rect
;
1049 char *utfstring
, *utfptr
;
1051 int shadowbold
= FALSE
;
1056 y
-= pfont
->u
.ascent
;
1058 layout
= pango_layout_new(gtk_widget_get_pango_context(pfont
->widget
));
1059 pango_layout_set_font_description(layout
, pfont
->desc
);
1060 if (bold
> pfont
->bold
) {
1061 if (pfont
->shadowalways
)
1064 PangoFontDescription
*desc2
=
1065 pango_font_description_copy_static(pfont
->desc
);
1066 pango_font_description_set_weight(desc2
, PANGO_WEIGHT_BOLD
);
1067 pango_layout_set_font_description(layout
, desc2
);
1072 * Pango always expects UTF-8, so convert the input wide character
1075 utfstring
= snewn(len
*6+1, char); /* UTF-8 has max 6 bytes/char */
1076 utflen
= wc_to_mb(CS_UTF8
, 0, string
, len
,
1077 utfstring
, len
*6+1, ".", NULL
, NULL
);
1080 while (utflen
> 0) {
1084 * We want to display every character from this string in
1085 * the centre of its own character cell. In the worst case,
1086 * this requires a separate text-drawing call for each
1087 * character; but in the common case where the font is
1088 * properly fixed-width, we can draw many characters in one
1089 * go which is much faster.
1091 * This still isn't really ideal. If you look at what
1092 * happens in the X protocol as a result of all of this, you
1093 * find - naturally enough - that each call to
1094 * gdk_draw_layout() generates a separate set of X RENDER
1095 * operations involving creating a picture, setting a clip
1096 * rectangle, doing some drawing and undoing the whole lot.
1097 * In an ideal world, we should _always_ be able to turn the
1098 * contents of this loop into a single RenderCompositeGlyphs
1099 * operation which internally specifies inter-character
1100 * deltas to get the spacing right, which would give us full
1101 * speed _even_ in the worst case of a non-fixed-width font.
1102 * However, Pango's architecture and documentation are so
1103 * unhelpful that I have no idea how if at all to persuade
1108 * Start by extracting a single UTF-8 character from the
1112 while (clen
< utflen
&&
1113 (unsigned char)utfptr
[clen
] >= 0x80 &&
1114 (unsigned char)utfptr
[clen
] < 0xC0)
1119 * If it's a right-to-left character, we must display it on
1120 * its own, to stop Pango helpfully re-reversing our already
1123 if (!is_rtl(string
[0])) {
1126 * See if that character has the width we expect.
1128 pango_layout_set_text(layout
, utfptr
, clen
);
1129 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1131 if (rect
.width
== cellwidth
) {
1133 * Try extracting more characters, for as long as they
1134 * stay well-behaved.
1136 while (clen
< utflen
) {
1138 clen
++; /* skip UTF-8 introducer byte */
1139 while (clen
< utflen
&&
1140 (unsigned char)utfptr
[clen
] >= 0x80 &&
1141 (unsigned char)utfptr
[clen
] < 0xC0)
1144 pango_layout_set_text(layout
, utfptr
, clen
);
1145 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1146 if (rect
.width
!= n
* cellwidth
) {
1155 pango_layout_set_text(layout
, utfptr
, clen
);
1156 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1157 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2,
1158 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1160 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2 + pfont
->shadowoffset
,
1161 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1171 g_object_unref(layout
);
1175 * Dummy size value to be used when converting a
1176 * PangoFontDescription of a scalable font to a string for
1179 #define PANGO_DUMMY_SIZE 12
1181 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
1185 #ifndef PANGO_PRE_1POINT6
1188 PangoFontFamily
**families
;
1191 ctx
= gtk_widget_get_pango_context(widget
);
1196 * Ask Pango for a list of font families, and iterate through
1199 #ifndef PANGO_PRE_1POINT6
1200 map
= pango_context_get_font_map(ctx
);
1203 pango_font_map_list_families(map
, &families
, &nfamilies
);
1205 pango_context_list_families(ctx
, &families
, &nfamilies
);
1207 for (i
= 0; i
< nfamilies
; i
++) {
1208 PangoFontFamily
*family
= families
[i
];
1209 const char *familyname
;
1211 PangoFontFace
**faces
;
1215 * Set up our flags for this font family, and get the name
1218 flags
= FONTFLAG_CLIENTSIDE
;
1219 #ifndef PANGO_PRE_1POINT4
1221 * In very early versions of Pango, we can't tell
1222 * monospaced fonts from non-monospaced.
1224 if (!pango_font_family_is_monospace(family
))
1225 flags
|= FONTFLAG_NONMONOSPACED
;
1227 familyname
= pango_font_family_get_name(family
);
1230 * Go through the available font faces in this family.
1232 pango_font_family_list_faces(family
, &faces
, &nfaces
);
1233 for (j
= 0; j
< nfaces
; j
++) {
1234 PangoFontFace
*face
= faces
[j
];
1235 PangoFontDescription
*desc
;
1236 const char *facename
;
1238 int k
, nsizes
, dummysize
;
1241 * Get the face name string.
1243 facename
= pango_font_face_get_face_name(face
);
1246 * Set up a font description with what we've got so
1247 * far. We'll fill in the size field manually and then
1248 * call pango_font_description_to_string() to give the
1249 * full real name of the specific font.
1251 desc
= pango_font_face_describe(face
);
1254 * See if this font has a list of specific sizes.
1256 #ifndef PANGO_PRE_1POINT4
1257 pango_font_face_list_sizes(face
, &sizes
, &nsizes
);
1260 * In early versions of Pango, that call wasn't
1261 * supported; we just have to assume everything is
1268 * Write a single entry with a dummy size.
1270 dummysize
= PANGO_DUMMY_SIZE
* PANGO_SCALE
;
1276 * If so, go through them one by one.
1278 for (k
= 0; k
< nsizes
; k
++) {
1282 pango_font_description_set_size(desc
, sizes
[k
]);
1284 fullname
= pango_font_description_to_string(desc
);
1287 * Construct the sorting key for font styles.
1293 n
= pango_font_description_get_weight(desc
);
1294 /* Weight: normal, then lighter, then bolder */
1295 if (n
<= PANGO_WEIGHT_NORMAL
)
1296 n
= PANGO_WEIGHT_NORMAL
- n
;
1297 p
+= sprintf(p
, "%4d", n
);
1299 n
= pango_font_description_get_style(desc
);
1300 p
+= sprintf(p
, " %2d", n
);
1302 n
= pango_font_description_get_stretch(desc
);
1303 /* Stretch: closer to normal sorts earlier */
1304 n
= 2 * abs(PANGO_STRETCH_NORMAL
- n
) +
1305 (n
< PANGO_STRETCH_NORMAL
);
1306 p
+= sprintf(p
, " %2d", n
);
1308 n
= pango_font_description_get_variant(desc
);
1309 p
+= sprintf(p
, " %2d", n
);
1314 * Got everything. Hand off to the callback.
1315 * (The charset string is NULL, because only
1316 * server-side X fonts use it.)
1318 callback(callback_ctx
, fullname
, familyname
, NULL
, facename
,
1320 (sizes
== &dummysize ?
0 : PANGO_PIXELS(sizes
[k
])),
1321 flags
, &pangofont_vtable
);
1325 if (sizes
!= &dummysize
)
1328 pango_font_description_free(desc
);
1335 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
1336 int *size
, int *flags
,
1337 int resolve_aliases
)
1340 * When given a Pango font name to try to make sense of for a
1341 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1342 * extract its original size (in pixels) into the `size' field.
1345 #ifndef PANGO_PRE_1POINT6
1348 PangoFontDescription
*desc
;
1350 PangoFontMetrics
*metrics
;
1351 char *newname
, *retname
;
1353 desc
= pango_font_description_from_string(name
);
1356 ctx
= gtk_widget_get_pango_context(widget
);
1358 pango_font_description_free(desc
);
1361 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1362 pango_font_description_free(desc
);
1365 #ifndef PANGO_PRE_1POINT6
1366 map
= pango_context_get_font_map(ctx
);
1368 pango_font_description_free(desc
);
1371 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
1372 pango_context_get_language(ctx
));
1374 fset
= pango_context_load_fontset(ctx
, desc
,
1375 pango_context_get_language(ctx
));
1378 pango_font_description_free(desc
);
1381 metrics
= pango_fontset_get_metrics(fset
);
1383 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
1384 pango_font_description_free(desc
);
1385 g_object_unref(fset
);
1389 *size
= PANGO_PIXELS(pango_font_description_get_size(desc
));
1390 *flags
= FONTFLAG_CLIENTSIDE
;
1391 pango_font_description_set_size(desc
, PANGO_DUMMY_SIZE
* PANGO_SCALE
);
1392 newname
= pango_font_description_to_string(desc
);
1393 retname
= dupstr(newname
);
1396 pango_font_metrics_unref(metrics
);
1397 pango_font_description_free(desc
);
1398 g_object_unref(fset
);
1403 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
1406 PangoFontDescription
*desc
;
1407 char *newname
, *retname
;
1409 desc
= pango_font_description_from_string(name
);
1412 pango_font_description_set_size(desc
, size
* PANGO_SCALE
);
1413 newname
= pango_font_description_to_string(desc
);
1414 retname
= dupstr(newname
);
1416 pango_font_description_free(desc
);
1421 #endif /* GTK_CHECK_VERSION(2,0,0) */
1423 /* ----------------------------------------------------------------------
1424 * Outermost functions which do the vtable dispatch.
1428 * Complete list of font-type subclasses. Listed in preference
1429 * order for unifont_create(). (That is, in the extremely unlikely
1430 * event that the same font name is valid as both a Pango and an
1431 * X11 font, it will be interpreted as the former in the absence
1432 * of an explicit type-disambiguating prefix.)
1434 * The 'multifont' subclass is omitted here, as discussed above.
1436 static const struct unifont_vtable
*unifont_types
[] = {
1437 #if GTK_CHECK_VERSION(2,0,0)
1444 * Function which takes a font name and processes the optional
1445 * scheme prefix. Returns the tail of the font name suitable for
1446 * passing to individual font scheme functions, and also provides
1447 * a subrange of the unifont_types[] array above.
1449 * The return values `start' and `end' denote a half-open interval
1450 * in unifont_types[]; that is, the correct way to iterate over
1453 * for (i = start; i < end; i++) {...}
1455 static const char *unifont_do_prefix(const char *name
, int *start
, int *end
)
1457 int colonpos
= strcspn(name
, ":");
1460 if (name
[colonpos
]) {
1462 * There's a colon prefix on the font name. Use it to work
1463 * out which subclass to use.
1465 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1466 if (strlen(unifont_types
[i
]->prefix
) == colonpos
&&
1467 !strncmp(unifont_types
[i
]->prefix
, name
, colonpos
)) {
1470 return name
+ colonpos
+ 1;
1474 * None matched, so return an empty scheme list to prevent
1475 * any scheme from being called at all.
1478 return name
+ colonpos
+ 1;
1481 * No colon prefix, so just use all the subclasses.
1484 *end
= lenof(unifont_types
);
1489 unifont
*unifont_create(GtkWidget
*widget
, const char *name
, int wide
,
1490 int bold
, int shadowoffset
, int shadowalways
)
1494 name
= unifont_do_prefix(name
, &start
, &end
);
1496 for (i
= start
; i
< end
; i
++) {
1497 unifont
*ret
= unifont_types
[i
]->create(widget
, name
, wide
, bold
,
1498 shadowoffset
, shadowalways
);
1502 return NULL
; /* font not found in any scheme */
1505 void unifont_destroy(unifont
*font
)
1507 font
->vt
->destroy(font
);
1510 void unifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1511 int x
, int y
, const wchar_t *string
, int len
,
1512 int wide
, int bold
, int cellwidth
)
1514 font
->vt
->draw_text(target
, gc
, font
, x
, y
, string
, len
,
1515 wide
, bold
, cellwidth
);
1518 /* ----------------------------------------------------------------------
1519 * Multiple-font wrapper. This is a type of unifont which encapsulates
1520 * up to two other unifonts, permitting missing glyphs in the main
1521 * font to be filled in by a fallback font.
1523 * This is a type of unifont just like the previous two, but it has a
1524 * separate constructor which is manually called by the client, so it
1525 * doesn't appear in the list of available font types enumerated by
1526 * unifont_create. This means it's not used by unifontsel either, so
1527 * it doesn't need to support any methods except draw_text and
1531 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1532 int x
, int y
, const wchar_t *string
, int len
,
1533 int wide
, int bold
, int cellwidth
);
1534 static void multifont_destroy(unifont
*font
);
1542 static const struct unifont_vtable multifont_vtable
= {
1543 NULL
, /* creation is done specially */
1547 multifont_draw_text
,
1554 unifont
*multifont_create(GtkWidget
*widget
, const char *name
,
1556 int shadowoffset
, int shadowalways
)
1559 unifont
*font
, *fallback
;
1560 struct multifont
*mfont
;
1562 font
= unifont_create(widget
, name
, wide
, bold
,
1563 shadowoffset
, shadowalways
);
1567 if (font
->want_fallback
) {
1568 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1569 if (unifont_types
[i
]->create_fallback
) {
1570 fallback
= unifont_types
[i
]->create_fallback
1571 (widget
, font
->height
, wide
, bold
,
1572 shadowoffset
, shadowalways
);
1580 * Construct our multifont. Public members are all copied from the
1581 * primary font we're wrapping.
1583 mfont
= snew(struct multifont
);
1584 mfont
->u
.vt
= &multifont_vtable
;
1585 mfont
->u
.width
= font
->width
;
1586 mfont
->u
.ascent
= font
->ascent
;
1587 mfont
->u
.descent
= font
->descent
;
1588 mfont
->u
.height
= font
->height
;
1589 mfont
->u
.public_charset
= font
->public_charset
;
1590 mfont
->u
.want_fallback
= FALSE
; /* shouldn't be needed, but just in case */
1592 mfont
->fallback
= fallback
;
1594 return (unifont
*)mfont
;
1597 static void multifont_destroy(unifont
*font
)
1599 struct multifont
*mfont
= (struct multifont
*)font
;
1600 unifont_destroy(mfont
->main
);
1601 if (mfont
->fallback
)
1602 unifont_destroy(mfont
->fallback
);
1606 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1607 int x
, int y
, const wchar_t *string
, int len
,
1608 int wide
, int bold
, int cellwidth
)
1610 struct multifont
*mfont
= (struct multifont
*)font
;
1615 * Find a maximal sequence of characters which are, or are
1616 * not, supported by our main font.
1618 ok
= mfont
->main
->vt
->has_glyph(mfont
->main
, string
[0]);
1621 !mfont
->main
->vt
->has_glyph(mfont
->main
, string
[i
]) == !ok
;
1627 unifont_draw_text(target
, gc
, ok ? mfont
->main
: mfont
->fallback
,
1628 x
, y
, string
, i
, wide
, bold
, cellwidth
);
1635 #if GTK_CHECK_VERSION(2,0,0)
1637 /* ----------------------------------------------------------------------
1638 * Implementation of a unified font selector. Used on GTK 2 only;
1639 * for GTK 1 we still use the standard font selector.
1642 typedef struct fontinfo fontinfo
;
1644 typedef struct unifontsel_internal
{
1645 /* This must be the structure's first element, for cross-casting */
1647 GtkListStore
*family_model
, *style_model
, *size_model
;
1648 GtkWidget
*family_list
, *style_list
, *size_entry
, *size_list
;
1649 GtkWidget
*filter_buttons
[4];
1650 GtkWidget
*preview_area
;
1651 GdkPixmap
*preview_pixmap
;
1652 int preview_width
, preview_height
;
1653 GdkColor preview_fg
, preview_bg
;
1655 tree234
*fonts_by_realname
, *fonts_by_selorder
;
1657 int selsize
, intendedsize
;
1658 int inhibit_response
; /* inhibit callbacks when we change GUI controls */
1659 } unifontsel_internal
;
1662 * The structure held in the tree234s. All the string members are
1663 * part of the same allocated area, so don't need freeing
1668 char *family
, *charset
, *style
, *stylekey
;
1671 * Fallback sorting key, to permit multiple identical entries
1672 * to exist in the selorder tree.
1676 * Indices mapping fontinfo structures to indices in the list
1677 * boxes. sizeindex is irrelevant if the font is scalable
1680 int familyindex
, styleindex
, sizeindex
;
1682 * The class of font.
1684 const struct unifont_vtable
*fontclass
;
1687 struct fontinfo_realname_find
{
1688 const char *realname
;
1692 static int strnullcasecmp(const char *a
, const char *b
)
1697 * If exactly one of the inputs is NULL, it compares before
1700 if ((i
= (!b
) - (!a
)) != 0)
1704 * NULL compares equal.
1710 * Otherwise, ordinary strcasecmp.
1712 return g_strcasecmp(a
, b
);
1715 static int fontinfo_realname_compare(void *av
, void *bv
)
1717 fontinfo
*a
= (fontinfo
*)av
;
1718 fontinfo
*b
= (fontinfo
*)bv
;
1721 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1723 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1724 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1725 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1729 static int fontinfo_realname_find(void *av
, void *bv
)
1731 struct fontinfo_realname_find
*a
= (struct fontinfo_realname_find
*)av
;
1732 fontinfo
*b
= (fontinfo
*)bv
;
1735 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1737 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1738 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1739 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1743 static int fontinfo_selorder_compare(void *av
, void *bv
)
1745 fontinfo
*a
= (fontinfo
*)av
;
1746 fontinfo
*b
= (fontinfo
*)bv
;
1748 if ((i
= strnullcasecmp(a
->family
, b
->family
)) != 0)
1751 * Font class comes immediately after family, so that fonts
1752 * from different classes with the same family
1754 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1755 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1756 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1757 if ((i
= strnullcasecmp(a
->charset
, b
->charset
)) != 0)
1759 if ((i
= strnullcasecmp(a
->stylekey
, b
->stylekey
)) != 0)
1761 if ((i
= strnullcasecmp(a
->style
, b
->style
)) != 0)
1763 if (a
->size
!= b
->size
)
1764 return (a
->size
< b
->size ?
-1 : +1);
1765 if (a
->index
!= b
->index
)
1766 return (a
->index
< b
->index ?
-1 : +1);
1770 static void unifontsel_deselect(unifontsel_internal
*fs
)
1772 fs
->selected
= NULL
;
1773 gtk_list_store_clear(fs
->style_model
);
1774 gtk_list_store_clear(fs
->size_model
);
1775 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
1776 gtk_widget_set_sensitive(fs
->size_entry
, FALSE
);
1779 static void unifontsel_setup_familylist(unifontsel_internal
*fs
)
1782 int i
, listindex
, minpos
= -1, maxpos
= -1;
1783 char *currfamily
= NULL
;
1787 gtk_list_store_clear(fs
->family_model
);
1791 * Search through the font tree for anything matching our
1792 * current filter criteria. When we find one, add its font
1793 * name to the list box.
1795 for (i
= 0 ;; i
++) {
1796 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1798 * info may be NULL if we've just run off the end of the
1799 * tree. We must still do a processing pass in that
1800 * situation, in case we had an unfinished font record in
1803 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1804 info
->familyindex
= -1;
1805 continue; /* we're filtering out this font */
1807 if (!info
|| strnullcasecmp(currfamily
, info
->family
) ||
1808 currflags
!= (info
->flags
& FONTFLAG_SORT_MASK
)) {
1810 * We've either finished a family, or started a new
1814 gtk_list_store_append(fs
->family_model
, &iter
);
1815 gtk_list_store_set(fs
->family_model
, &iter
,
1816 0, currfamily
, 1, minpos
, 2, maxpos
+1, -1);
1821 currfamily
= info
->family
;
1822 currflags
= info
->flags
& FONTFLAG_SORT_MASK
;
1826 break; /* now we're done */
1827 info
->familyindex
= listindex
;
1832 * If we've just filtered out the previously selected font,
1833 * deselect it thoroughly.
1835 if (fs
->selected
&& fs
->selected
->familyindex
< 0)
1836 unifontsel_deselect(fs
);
1839 static void unifontsel_setup_stylelist(unifontsel_internal
*fs
,
1843 int i
, listindex
, minpos
= -1, maxpos
= -1, started
= FALSE
;
1844 char *currcs
= NULL
, *currstyle
= NULL
;
1847 gtk_list_store_clear(fs
->style_model
);
1852 * Search through the font tree for anything matching our
1853 * current filter criteria. When we find one, add its charset
1854 * and/or style name to the list box.
1856 for (i
= start
; i
<= end
; i
++) {
1860 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1862 * info may be NULL if we've just run off the end of the
1863 * relevant data. We must still do a processing pass in
1864 * that situation, in case we had an unfinished font
1865 * record in progress.
1867 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1868 info
->styleindex
= -1;
1869 continue; /* we're filtering out this font */
1871 if (!info
|| !started
|| strnullcasecmp(currcs
, info
->charset
) ||
1872 strnullcasecmp(currstyle
, info
->style
)) {
1874 * We've either finished a style/charset, or started a
1879 gtk_list_store_append(fs
->style_model
, &iter
);
1880 gtk_list_store_set(fs
->style_model
, &iter
,
1881 0, currstyle
, 1, minpos
, 2, maxpos
+1,
1887 if (info
->charset
&& strnullcasecmp(currcs
, info
->charset
)) {
1888 gtk_list_store_append(fs
->style_model
, &iter
);
1889 gtk_list_store_set(fs
->style_model
, &iter
,
1890 0, info
->charset
, 1, -1, 2, -1,
1894 currcs
= info
->charset
;
1895 currstyle
= info
->style
;
1899 break; /* now we're done */
1900 info
->styleindex
= listindex
;
1905 static const int unifontsel_default_sizes
[] = { 10, 12, 14, 16, 20, 24, 32 };
1907 static void unifontsel_setup_sizelist(unifontsel_internal
*fs
,
1915 gtk_list_store_clear(fs
->size_model
);
1919 * Search through the font tree for anything matching our
1920 * current filter criteria. When we find one, add its font
1921 * name to the list box.
1923 for (i
= start
; i
< end
; i
++) {
1924 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1925 if (info
->flags
&~ fs
->filter_flags
) {
1926 info
->sizeindex
= -1;
1927 continue; /* we're filtering out this font */
1930 sprintf(sizetext
, "%d", info
->size
);
1931 info
->sizeindex
= listindex
;
1932 gtk_list_store_append(fs
->size_model
, &iter
);
1933 gtk_list_store_set(fs
->size_model
, &iter
,
1934 0, sizetext
, 1, i
, 2, info
->size
, -1);
1942 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++) {
1943 sprintf(sizetext
, "%d", unifontsel_default_sizes
[j
]);
1944 gtk_list_store_append(fs
->size_model
, &iter
);
1945 gtk_list_store_set(fs
->size_model
, &iter
, 0, sizetext
, 1, i
,
1946 2, unifontsel_default_sizes
[j
], -1);
1953 static void unifontsel_set_filter_buttons(unifontsel_internal
*fs
)
1957 for (i
= 0; i
< lenof(fs
->filter_buttons
); i
++) {
1958 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data
1959 (GTK_OBJECT(fs
->filter_buttons
[i
]),
1961 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs
->filter_buttons
[i
]),
1962 !!(fs
->filter_flags
& flagbit
));
1966 static void unifontsel_draw_preview_text(unifontsel_internal
*fs
)
1969 char *sizename
= NULL
;
1970 fontinfo
*info
= fs
->selected
;
1973 sizename
= info
->fontclass
->scale_fontname
1974 (GTK_WIDGET(fs
->u
.window
), info
->realname
, fs
->selsize
);
1975 font
= info
->fontclass
->create(GTK_WIDGET(fs
->u
.window
),
1976 sizename ? sizename
: info
->realname
,
1977 FALSE
, FALSE
, 0, 0);
1981 if (fs
->preview_pixmap
) {
1982 GdkGC
*gc
= gdk_gc_new(fs
->preview_pixmap
);
1983 gdk_gc_set_foreground(gc
, &fs
->preview_bg
);
1984 gdk_draw_rectangle(fs
->preview_pixmap
, gc
, 1, 0, 0,
1985 fs
->preview_width
, fs
->preview_height
);
1986 gdk_gc_set_foreground(gc
, &fs
->preview_fg
);
1989 * The pangram used here is rather carefully
1990 * constructed: it contains a sequence of very narrow
1991 * letters (`jil') and a pair of adjacent very wide
1994 * If the user selects a proportional font, it will be
1995 * coerced into fixed-width character cells when used
1996 * in the actual terminal window. We therefore display
1997 * it the same way in the preview pane, so as to show
1998 * it the way it will actually be displayed - and we
1999 * deliberately pick a pangram which will show the
2000 * resulting miskerning at its worst.
2002 * We aren't trying to sell people these fonts; we're
2003 * trying to let them make an informed choice. Better
2004 * that they find out the problems with using
2005 * proportional fonts in terminal windows here than
2006 * that they go to the effort of selecting their font
2007 * and _then_ realise it was a mistake.
2009 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2011 L
"bankrupt jilted showmen quiz convex fogey",
2012 41, FALSE
, FALSE
, font
->width
);
2013 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2014 0, font
->ascent
+ font
->height
,
2015 L
"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2016 41, FALSE
, FALSE
, font
->width
);
2018 * The ordering of punctuation here is also selected
2019 * with some specific aims in mind. I put ` and '
2020 * together because some software (and people) still
2021 * use them as matched quotes no matter what Unicode
2022 * might say on the matter, so people can quickly
2023 * check whether they look silly in a candidate font.
2024 * The sequence #_@ is there to let people judge the
2025 * suitability of the underscore as an effectively
2026 * alphabetic character (since that's how it's often
2027 * used in practice, at least by programmers).
2029 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2030 0, font
->ascent
+ font
->height
* 2,
2031 L
"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2032 42, FALSE
, FALSE
, font
->width
);
2035 gdk_window_invalidate_rect(fs
->preview_area
->window
, NULL
, FALSE
);
2038 info
->fontclass
->destroy(font
);
2043 static void unifontsel_select_font(unifontsel_internal
*fs
,
2044 fontinfo
*info
, int size
, int leftlist
,
2045 int size_is_explicit
)
2049 GtkTreePath
*treepath
;
2052 fs
->inhibit_response
= TRUE
;
2054 fs
->selected
= info
;
2056 if (size_is_explicit
)
2057 fs
->intendedsize
= size
;
2059 gtk_widget_set_sensitive(fs
->u
.ok_button
, TRUE
);
2062 * Find the index of this fontinfo in the selorder list.
2065 findpos234(fs
->fonts_by_selorder
, info
, NULL
, &index
);
2069 * Adjust the font selector flags and redo the font family
2070 * list box, if necessary.
2072 if (leftlist
<= 0 &&
2073 (fs
->filter_flags
| info
->flags
) != fs
->filter_flags
) {
2074 fs
->filter_flags
|= info
->flags
;
2075 unifontsel_set_filter_buttons(fs
);
2076 unifontsel_setup_familylist(fs
);
2080 * Find the appropriate family name and select it in the list.
2082 assert(info
->familyindex
>= 0);
2083 treepath
= gtk_tree_path_new_from_indices(info
->familyindex
, -1);
2084 gtk_tree_selection_select_path
2085 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->family_list
)),
2087 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->family_list
),
2088 treepath
, NULL
, FALSE
, 0.0, 0.0);
2089 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, treepath
);
2090 gtk_tree_path_free(treepath
);
2093 * Now set up the font style list.
2095 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
,
2096 1, &minval
, 2, &maxval
, -1);
2098 unifontsel_setup_stylelist(fs
, minval
, maxval
);
2101 * Find the appropriate style name and select it in the list.
2104 assert(info
->styleindex
>= 0);
2105 treepath
= gtk_tree_path_new_from_indices(info
->styleindex
, -1);
2106 gtk_tree_selection_select_path
2107 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->style_list
)),
2109 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->style_list
),
2110 treepath
, NULL
, FALSE
, 0.0, 0.0);
2111 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->style_model
),
2113 gtk_tree_path_free(treepath
);
2116 * And set up the size list.
2118 gtk_tree_model_get(GTK_TREE_MODEL(fs
->style_model
), &iter
,
2119 1, &minval
, 2, &maxval
, -1);
2121 unifontsel_setup_sizelist(fs
, minval
, maxval
);
2124 * Find the appropriate size, and select it in the list.
2127 assert(info
->sizeindex
>= 0);
2128 treepath
= gtk_tree_path_new_from_indices(info
->sizeindex
, -1);
2129 gtk_tree_selection_select_path
2130 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->size_list
)),
2132 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2133 treepath
, NULL
, FALSE
, 0.0, 0.0);
2134 gtk_tree_path_free(treepath
);
2138 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++)
2139 if (unifontsel_default_sizes
[j
] == size
) {
2140 treepath
= gtk_tree_path_new_from_indices(j
, -1);
2141 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs
->size_list
),
2142 treepath
, NULL
, FALSE
);
2143 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2144 treepath
, NULL
, FALSE
, 0.0,
2146 gtk_tree_path_free(treepath
);
2151 * And set up the font size text entry box.
2155 sprintf(sizetext
, "%d", size
);
2156 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), sizetext
);
2160 unifontsel_setup_sizelist(fs
, 0, 0);
2161 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), "");
2165 * Grey out the font size edit box if we're not using a
2168 gtk_entry_set_editable(GTK_ENTRY(fs
->size_entry
), fs
->selected
->size
== 0);
2169 gtk_widget_set_sensitive(fs
->size_entry
, fs
->selected
->size
== 0);
2171 unifontsel_draw_preview_text(fs
);
2173 fs
->inhibit_response
= FALSE
;
2176 static void unifontsel_button_toggled(GtkToggleButton
*tb
, gpointer data
)
2178 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2179 int newstate
= gtk_toggle_button_get_active(tb
);
2181 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(tb
),
2185 newflags
= fs
->filter_flags
| flagbit
;
2187 newflags
= fs
->filter_flags
& ~flagbit
;
2189 if (fs
->filter_flags
!= newflags
) {
2190 fs
->filter_flags
= newflags
;
2191 unifontsel_setup_familylist(fs
);
2195 static void unifontsel_add_entry(void *ctx
, const char *realfontname
,
2196 const char *family
, const char *charset
,
2197 const char *style
, const char *stylekey
,
2198 int size
, int flags
,
2199 const struct unifont_vtable
*fontclass
)
2201 unifontsel_internal
*fs
= (unifontsel_internal
*)ctx
;
2206 totalsize
= sizeof(fontinfo
) + strlen(realfontname
) +
2207 (family ?
strlen(family
) : 0) + (charset ?
strlen(charset
) : 0) +
2208 (style ?
strlen(style
) : 0) + (stylekey ?
strlen(stylekey
) : 0) + 10;
2209 info
= (fontinfo
*)smalloc(totalsize
);
2210 info
->fontclass
= fontclass
;
2211 p
= (char *)info
+ sizeof(fontinfo
);
2213 strcpy(p
, realfontname
);
2220 info
->family
= NULL
;
2226 info
->charset
= NULL
;
2235 strcpy(p
, stylekey
);
2238 info
->stylekey
= NULL
;
2239 assert(p
- (char *)info
<= totalsize
);
2241 info
->flags
= flags
;
2242 info
->index
= count234(fs
->fonts_by_selorder
);
2245 * It's just conceivable that a misbehaving font enumerator
2246 * might tell us about the same font real name more than once,
2247 * in which case we should silently drop the new one.
2249 if (add234(fs
->fonts_by_realname
, info
) != info
) {
2254 * However, we should never get a duplicate key in the
2255 * selorder tree, because the index field carefully
2256 * disambiguates otherwise identical records.
2258 add234(fs
->fonts_by_selorder
, info
);
2261 static fontinfo
*update_for_intended_size(unifontsel_internal
*fs
,
2264 fontinfo info2
, *below
, *above
;
2268 * Copy the info structure. This doesn't copy its dynamic
2269 * string fields, but that's unimportant because all we're
2270 * going to do is to adjust the size field and use it in one
2274 info2
.size
= fs
->intendedsize
;
2277 * Search in the tree to find the fontinfo structure which
2278 * best approximates the size the user last requested.
2280 below
= findrelpos234(fs
->fonts_by_selorder
, &info2
, NULL
,
2282 above
= index234(fs
->fonts_by_selorder
, pos
+1);
2285 * See if we've found it exactly, which is an easy special
2286 * case. If we have, it'll be in `below' and not `above',
2287 * because we did a REL234_LE rather than REL234_LT search.
2289 if (!fontinfo_selorder_compare(&info2
, below
))
2293 * Now we've either found two suitable fonts, one smaller and
2294 * one larger, or we're at one or other extreme end of the
2295 * scale. Find out which, by NULLing out either of below and
2296 * above if it differs from this one in any respect but size
2297 * (and the disambiguating index field). Bear in mind, also,
2298 * that either one might _already_ be NULL if we're at the
2299 * extreme ends of the font list.
2302 info2
.size
= below
->size
;
2303 info2
.index
= below
->index
;
2304 if (fontinfo_selorder_compare(&info2
, below
))
2308 info2
.size
= above
->size
;
2309 info2
.index
= above
->index
;
2310 if (fontinfo_selorder_compare(&info2
, above
))
2315 * Now return whichever of above and below is non-NULL, if
2316 * that's unambiguous.
2324 * And now we really do have to make a choice about whether to
2325 * round up or down. We'll do it by rounding to nearest,
2326 * breaking ties by rounding up.
2328 if (above
->size
- fs
->intendedsize
<= fs
->intendedsize
- below
->size
)
2334 static void family_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2336 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2337 GtkTreeModel
*treemodel
;
2338 GtkTreeIter treeiter
;
2342 if (fs
->inhibit_response
) /* we made this change ourselves */
2345 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2348 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2349 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2350 info
= update_for_intended_size(fs
, info
);
2352 return; /* _shouldn't_ happen unless font list is completely funted */
2354 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2355 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2359 static void style_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2361 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2362 GtkTreeModel
*treemodel
;
2363 GtkTreeIter treeiter
;
2367 if (fs
->inhibit_response
) /* we made this change ourselves */
2370 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2373 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2375 return; /* somehow a charset heading got clicked */
2376 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2377 info
= update_for_intended_size(fs
, info
);
2379 return; /* _shouldn't_ happen unless font list is completely funted */
2381 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2382 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2386 static void size_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2388 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2389 GtkTreeModel
*treemodel
;
2390 GtkTreeIter treeiter
;
2394 if (fs
->inhibit_response
) /* we made this change ourselves */
2397 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2400 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, 2, &size
, -1);
2401 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2402 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: size
, 3, TRUE
);
2405 static void size_entry_changed(GtkEditable
*ed
, gpointer data
)
2407 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2411 if (fs
->inhibit_response
) /* we made this change ourselves */
2414 text
= gtk_entry_get_text(GTK_ENTRY(ed
));
2418 assert(fs
->selected
->size
== 0);
2419 unifontsel_select_font(fs
, fs
->selected
, size
, 3, TRUE
);
2423 static void alias_resolve(GtkTreeView
*treeview
, GtkTreePath
*path
,
2424 GtkTreeViewColumn
*column
, gpointer data
)
2426 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2428 int minval
, newsize
;
2429 fontinfo
*info
, *newinfo
;
2432 if (fs
->inhibit_response
) /* we made this change ourselves */
2435 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, path
);
2436 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
, 1,&minval
, -1);
2437 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2440 struct fontinfo_realname_find f
;
2442 newname
= info
->fontclass
->canonify_fontname
2443 (GTK_WIDGET(fs
->u
.window
), info
->realname
, &newsize
, &flags
, TRUE
);
2445 f
.realname
= newname
;
2447 newinfo
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2451 return; /* font name not in our index */
2452 if (newinfo
== info
)
2453 return; /* didn't change under canonification => not an alias */
2454 unifontsel_select_font(fs
, newinfo
,
2455 newinfo
->size ? newinfo
->size
: newsize
,
2460 static gint
unifontsel_expose_area(GtkWidget
*widget
, GdkEventExpose
*event
,
2463 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2465 if (fs
->preview_pixmap
) {
2466 gdk_draw_pixmap(widget
->window
,
2467 widget
->style
->fg_gc
[GTK_WIDGET_STATE(widget
)],
2469 event
->area
.x
, event
->area
.y
,
2470 event
->area
.x
, event
->area
.y
,
2471 event
->area
.width
, event
->area
.height
);
2476 static gint
unifontsel_configure_area(GtkWidget
*widget
,
2477 GdkEventConfigure
*event
, gpointer data
)
2479 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2480 int ox
, oy
, nx
, ny
, x
, y
;
2483 * Enlarge the pixmap, but never shrink it.
2485 ox
= fs
->preview_width
;
2486 oy
= fs
->preview_height
;
2489 if (x
> ox
|| y
> oy
) {
2490 if (fs
->preview_pixmap
)
2491 gdk_pixmap_unref(fs
->preview_pixmap
);
2493 nx
= (x
> ox ? x
: ox
);
2494 ny
= (y
> oy ? y
: oy
);
2495 fs
->preview_pixmap
= gdk_pixmap_new(widget
->window
, nx
, ny
, -1);
2496 fs
->preview_width
= nx
;
2497 fs
->preview_height
= ny
;
2499 unifontsel_draw_preview_text(fs
);
2502 gdk_window_invalidate_rect(widget
->window
, NULL
, FALSE
);
2507 unifontsel
*unifontsel_new(const char *wintitle
)
2509 unifontsel_internal
*fs
= snew(unifontsel_internal
);
2510 GtkWidget
*table
, *label
, *w
, *ww
, *scroll
;
2511 GtkListStore
*model
;
2512 GtkTreeViewColumn
*column
;
2513 int lists_height
, preview_height
, font_width
, style_width
, size_width
;
2516 fs
->inhibit_response
= FALSE
;
2517 fs
->selected
= NULL
;
2521 * Invent some magic size constants.
2524 label
= gtk_label_new("Quite Long Font Name (Foundry)");
2525 gtk_widget_size_request(label
, &req
);
2526 font_width
= req
.width
;
2527 lists_height
= 14 * req
.height
;
2528 preview_height
= 5 * req
.height
;
2529 gtk_label_set_text(GTK_LABEL(label
), "Italic Extra Condensed");
2530 gtk_widget_size_request(label
, &req
);
2531 style_width
= req
.width
;
2532 gtk_label_set_text(GTK_LABEL(label
), "48000");
2533 gtk_widget_size_request(label
, &req
);
2534 size_width
= req
.width
;
2535 #if GTK_CHECK_VERSION(2,10,0)
2536 g_object_ref_sink(label
);
2537 g_object_unref(label
);
2539 gtk_object_sink(GTK_OBJECT(label
));
2544 * Create the dialog box and initialise the user-visible
2545 * fields in the returned structure.
2547 fs
->u
.user_data
= NULL
;
2548 fs
->u
.window
= GTK_WINDOW(gtk_dialog_new());
2549 gtk_window_set_title(fs
->u
.window
, wintitle
);
2550 fs
->u
.cancel_button
= gtk_dialog_add_button
2551 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_CANCEL
, GTK_RESPONSE_CANCEL
);
2552 fs
->u
.ok_button
= gtk_dialog_add_button
2553 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_OK
, GTK_RESPONSE_OK
);
2554 gtk_widget_grab_default(fs
->u
.ok_button
);
2557 * Now set up the internal fields, including in particular all
2558 * the controls that actually allow the user to select fonts.
2560 table
= gtk_table_new(8, 3, FALSE
);
2561 gtk_widget_show(table
);
2562 gtk_table_set_col_spacings(GTK_TABLE(table
), 8);
2563 #if GTK_CHECK_VERSION(2,4,0)
2564 /* GtkAlignment seems to be the simplest way to put padding round things */
2565 w
= gtk_alignment_new(0, 0, 1, 1);
2566 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2567 gtk_container_add(GTK_CONTAINER(w
), table
);
2572 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fs
->u
.window
)->vbox
),
2575 label
= gtk_label_new_with_mnemonic("_Font:");
2576 gtk_widget_show(label
);
2577 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2578 gtk_table_attach(GTK_TABLE(table
), label
, 0, 1, 0, 1, GTK_FILL
, 0, 0, 0);
2581 * The Font list box displays only a string, but additionally
2582 * stores two integers which give the limits within the
2583 * tree234 of the font entries covered by this list entry.
2585 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2586 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2587 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2588 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2590 column
= gtk_tree_view_column_new_with_attributes
2591 ("Font", gtk_cell_renderer_text_new(),
2592 "text", 0, (char *)NULL
);
2593 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2594 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2595 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2596 "changed", G_CALLBACK(family_changed
), fs
);
2597 g_signal_connect(G_OBJECT(w
), "row-activated",
2598 G_CALLBACK(alias_resolve
), fs
);
2600 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2601 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2603 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2604 gtk_widget_show(scroll
);
2605 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2606 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2607 gtk_widget_set_size_request(scroll
, font_width
, lists_height
);
2608 gtk_table_attach(GTK_TABLE(table
), scroll
, 0, 1, 1, 3, GTK_FILL
,
2609 GTK_EXPAND
| GTK_FILL
, 0, 0);
2610 fs
->family_model
= model
;
2611 fs
->family_list
= w
;
2613 label
= gtk_label_new_with_mnemonic("_Style:");
2614 gtk_widget_show(label
);
2615 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2616 gtk_table_attach(GTK_TABLE(table
), label
, 1, 2, 0, 1, GTK_FILL
, 0, 0, 0);
2619 * The Style list box can contain insensitive elements
2620 * (character set headings for server-side fonts), so we add
2621 * an extra column to the list store to hold that information.
2623 model
= gtk_list_store_new(4, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
,
2625 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2626 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2627 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2629 column
= gtk_tree_view_column_new_with_attributes
2630 ("Style", gtk_cell_renderer_text_new(),
2631 "text", 0, "sensitive", 3, (char *)NULL
);
2632 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2633 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2634 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2635 "changed", G_CALLBACK(style_changed
), fs
);
2637 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2638 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2640 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2641 gtk_widget_show(scroll
);
2642 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2643 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2644 gtk_widget_set_size_request(scroll
, style_width
, lists_height
);
2645 gtk_table_attach(GTK_TABLE(table
), scroll
, 1, 2, 1, 3, GTK_FILL
,
2646 GTK_EXPAND
| GTK_FILL
, 0, 0);
2647 fs
->style_model
= model
;
2650 label
= gtk_label_new_with_mnemonic("Si_ze:");
2651 gtk_widget_show(label
);
2652 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2653 gtk_table_attach(GTK_TABLE(table
), label
, 2, 3, 0, 1, GTK_FILL
, 0, 0, 0);
2656 * The Size label attaches primarily to a text input box so
2657 * that the user can select a size of their choice. The list
2658 * of available sizes is secondary.
2660 fs
->size_entry
= w
= gtk_entry_new();
2661 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2662 gtk_widget_set_size_request(w
, size_width
, -1);
2664 gtk_table_attach(GTK_TABLE(table
), w
, 2, 3, 1, 2, GTK_FILL
, 0, 0, 0);
2665 g_signal_connect(G_OBJECT(w
), "changed", G_CALLBACK(size_entry_changed
),
2668 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2669 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2670 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2672 column
= gtk_tree_view_column_new_with_attributes
2673 ("Size", gtk_cell_renderer_text_new(),
2674 "text", 0, (char *)NULL
);
2675 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2676 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2677 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2678 "changed", G_CALLBACK(size_changed
), fs
);
2680 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2681 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2683 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2684 gtk_widget_show(scroll
);
2685 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2686 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2687 gtk_table_attach(GTK_TABLE(table
), scroll
, 2, 3, 2, 3, GTK_FILL
,
2688 GTK_EXPAND
| GTK_FILL
, 0, 0);
2689 fs
->size_model
= model
;
2695 fs
->preview_area
= gtk_drawing_area_new();
2696 fs
->preview_pixmap
= NULL
;
2697 fs
->preview_width
= 0;
2698 fs
->preview_height
= 0;
2699 fs
->preview_fg
.pixel
= fs
->preview_bg
.pixel
= 0;
2700 fs
->preview_fg
.red
= fs
->preview_fg
.green
= fs
->preview_fg
.blue
= 0x0000;
2701 fs
->preview_bg
.red
= fs
->preview_bg
.green
= fs
->preview_bg
.blue
= 0xFFFF;
2702 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_fg
,
2704 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_bg
,
2706 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "expose_event",
2707 GTK_SIGNAL_FUNC(unifontsel_expose_area
), fs
);
2708 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "configure_event",
2709 GTK_SIGNAL_FUNC(unifontsel_configure_area
), fs
);
2710 gtk_widget_set_size_request(fs
->preview_area
, 1, preview_height
);
2711 gtk_widget_show(fs
->preview_area
);
2712 ww
= fs
->preview_area
;
2713 w
= gtk_frame_new(NULL
);
2714 gtk_container_add(GTK_CONTAINER(w
), ww
);
2716 #if GTK_CHECK_VERSION(2,4,0)
2718 /* GtkAlignment seems to be the simplest way to put padding round things */
2719 w
= gtk_alignment_new(0, 0, 1, 1);
2720 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2721 gtk_container_add(GTK_CONTAINER(w
), ww
);
2725 w
= gtk_frame_new("Preview of font");
2726 gtk_container_add(GTK_CONTAINER(w
), ww
);
2728 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 3, 4,
2729 GTK_EXPAND
| GTK_FILL
, GTK_EXPAND
| GTK_FILL
, 0, 8);
2732 w
= gtk_check_button_new_with_label("Show client-side fonts");
2733 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2734 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE
));
2735 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2736 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2738 fs
->filter_buttons
[i
++] = w
;
2739 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 4, 5, GTK_FILL
, 0, 0, 0);
2740 w
= gtk_check_button_new_with_label("Show server-side fonts");
2741 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2742 GINT_TO_POINTER(FONTFLAG_SERVERSIDE
));
2743 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2744 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2746 fs
->filter_buttons
[i
++] = w
;
2747 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 5, 6, GTK_FILL
, 0, 0, 0);
2748 w
= gtk_check_button_new_with_label("Show server-side font aliases");
2749 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2750 GINT_TO_POINTER(FONTFLAG_SERVERALIAS
));
2751 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2752 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2754 fs
->filter_buttons
[i
++] = w
;
2755 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 6, 7, GTK_FILL
, 0, 0, 0);
2756 w
= gtk_check_button_new_with_label("Show non-monospaced fonts");
2757 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2758 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED
));
2759 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2760 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2762 fs
->filter_buttons
[i
++] = w
;
2763 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 7, 8, GTK_FILL
, 0, 0, 0);
2765 assert(i
== lenof(fs
->filter_buttons
));
2766 fs
->filter_flags
= FONTFLAG_CLIENTSIDE
| FONTFLAG_SERVERSIDE
|
2767 FONTFLAG_SERVERALIAS
;
2768 unifontsel_set_filter_buttons(fs
);
2771 * Go and find all the font names, and set up our master font
2774 fs
->fonts_by_realname
= newtree234(fontinfo_realname_compare
);
2775 fs
->fonts_by_selorder
= newtree234(fontinfo_selorder_compare
);
2776 for (i
= 0; i
< lenof(unifont_types
); i
++)
2777 unifont_types
[i
]->enum_fonts(GTK_WIDGET(fs
->u
.window
),
2778 unifontsel_add_entry
, fs
);
2781 * And set up the initial font names list.
2783 unifontsel_setup_familylist(fs
);
2785 fs
->selsize
= fs
->intendedsize
= 13; /* random default */
2786 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
2788 return (unifontsel
*)fs
;
2791 void unifontsel_destroy(unifontsel
*fontsel
)
2793 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2796 if (fs
->preview_pixmap
)
2797 gdk_pixmap_unref(fs
->preview_pixmap
);
2799 freetree234(fs
->fonts_by_selorder
);
2800 while ((info
= delpos234(fs
->fonts_by_realname
, 0)) != NULL
)
2802 freetree234(fs
->fonts_by_realname
);
2804 gtk_widget_destroy(GTK_WIDGET(fs
->u
.window
));
2808 void unifontsel_set_name(unifontsel
*fontsel
, const char *fontname
)
2810 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2811 int i
, start
, end
, size
, flags
;
2812 const char *fontname2
= NULL
;
2816 * Provide a default if given an empty or null font name.
2818 if (!fontname
|| !*fontname
)
2819 fontname
= "server:fixed";
2822 * Call the canonify_fontname function.
2824 fontname
= unifont_do_prefix(fontname
, &start
, &end
);
2825 for (i
= start
; i
< end
; i
++) {
2826 fontname2
= unifont_types
[i
]->canonify_fontname
2827 (GTK_WIDGET(fs
->u
.window
), fontname
, &size
, &flags
, FALSE
);
2832 return; /* font name not recognised */
2835 * Now look up the canonified font name in our index.
2838 struct fontinfo_realname_find f
;
2839 f
.realname
= fontname2
;
2841 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2845 * If we've found the font, and its size field is either
2846 * correct or zero (the latter indicating a scalable font),
2847 * then we're done. Otherwise, try looking up the original
2848 * font name instead.
2850 if (!info
|| (info
->size
!= size
&& info
->size
!= 0)) {
2851 struct fontinfo_realname_find f
;
2852 f
.realname
= fontname
;
2855 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2856 if (!info
|| info
->size
!= size
)
2857 return; /* font name not in our index */
2861 * Now we've got a fontinfo structure and a font size, so we
2862 * know everything we need to fill in all the fields in the
2865 unifontsel_select_font(fs
, info
, size
, 0, TRUE
);
2868 char *unifontsel_get_name(unifontsel
*fontsel
)
2870 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2876 if (fs
->selected
->size
== 0) {
2877 name
= fs
->selected
->fontclass
->scale_fontname
2878 (GTK_WIDGET(fs
->u
.window
), fs
->selected
->realname
, fs
->selsize
);
2880 char *ret
= dupcat(fs
->selected
->fontclass
->prefix
, ":",
2887 return dupcat(fs
->selected
->fontclass
->prefix
, ":",
2888 fs
->selected
->realname
, NULL
);
2891 #endif /* GTK_CHECK_VERSION(2,0,0) */