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 #if !GTK_CHECK_VERSION(3,0,0)
17 #include <gdk/gdkkeysyms.h>
22 #include <X11/Xutil.h>
23 #include <X11/Xatom.h>
33 * - it would be nice to have a display of the current font name,
34 * and in particular whether it's client- or server-side,
35 * during the progress of the font selector.
37 * - it would be nice if we could move the processing of
38 * underline and VT100 double width into this module, so that
39 * instead of using the ghastly pixmap-stretching technique
40 * everywhere we could tell the Pango backend to scale its
41 * fonts to double size properly and at full resolution.
42 * However, this requires me to learn how to make Pango stretch
43 * text to an arbitrary aspect ratio (for double-width only
44 * text, which perversely is harder than DW+DH), and right now
45 * I haven't the energy.
48 #if !GLIB_CHECK_VERSION(1,3,7)
49 #define g_ascii_strcasecmp g_strcasecmp
50 #define g_ascii_strncasecmp g_strncasecmp
54 * Ad-hoc vtable mechanism to allow font structures to be
57 * Any instance of `unifont' used in the vtable functions will
58 * actually be the first element of a larger structure containing
59 * data specific to the subtype. This is permitted by the ISO C
60 * provision that one may safely cast between a pointer to a
61 * structure and a pointer to its first element.
64 #define FONTFLAG_CLIENTSIDE 0x0001
65 #define FONTFLAG_SERVERSIDE 0x0002
66 #define FONTFLAG_SERVERALIAS 0x0004
67 #define FONTFLAG_NONMONOSPACED 0x0008
69 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
71 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
72 const char *family, const char *charset,
73 const char *style, const char *stylekey,
75 const struct unifont_vtable *fontclass);
77 struct unifont_vtable {
79 * `Methods' of the `class'.
81 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
82 int shadowoffset, int shadowalways);
83 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
84 int bold, int shadowoffset, int shadowalways);
85 void (*destroy)(unifont *font);
86 int (*has_glyph)(unifont *font, wchar_t glyph);
87 void (*draw_text)(GdkDrawable *target, GdkGC *gc, unifont *font,
88 int x, int y, const wchar_t *string, int len, int wide,
89 int bold, int cellwidth);
90 void (*enum_fonts)(GtkWidget *widget,
91 fontsel_add_entry callback, void *callback_ctx);
92 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
93 int *flags, int resolve_aliases);
94 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
97 * `Static data members' of the `class'.
102 #ifndef NOT_X_WINDOWS
104 /* ----------------------------------------------------------------------
105 * X11 font implementation, directly using Xlib calls. Conditioned out
106 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
107 * back end other than X).
110 static int x11font_has_glyph(unifont *font, wchar_t glyph);
111 static void x11font_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
112 int x, int y, const wchar_t *string, int len,
113 int wide, int bold, int cellwidth);
114 static unifont *x11font_create(GtkWidget *widget, const char *name,
116 int shadowoffset, int shadowalways);
117 static void x11font_destroy(unifont *font);
118 static void x11font_enum_fonts(GtkWidget *widget,
119 fontsel_add_entry callback, void *callback_ctx);
120 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
121 int *size, int *flags,
122 int resolve_aliases);
123 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
129 * Actual font objects. We store a number of these, for
130 * automatically guessed bold and wide variants.
132 * The parallel array `allocated' indicates whether we've
133 * tried to fetch a subfont already (thus distinguishing NULL
134 * because we haven't tried yet from NULL because we tried and
135 * failed, so that we don't keep trying and failing
138 XFontStruct *fonts[4];
141 * `sixteen_bit' is true iff the font object is indexed by
142 * values larger than a byte. That is, this flag tells us
143 * whether we use XDrawString or XDrawString16, etc.
147 * `variable' is true iff the font is non-fixed-pitch. This
148 * enables some code which takes greater care over character
149 * positioning during text drawing.
153 * real_charset is the charset used when translating text into the
154 * font's internal encoding inside draw_text(). This need not be
155 * the same as the public_charset provided to the client; for
156 * example, public_charset might be CS_ISO8859_1 while
157 * real_charset is CS_ISO8859_1_X11.
161 * Data passed in to unifont_create().
163 int wide, bold, shadowoffset, shadowalways;
166 static const struct unifont_vtable x11font_vtable = {
168 NULL, /* no fallback fonts in X11 */
173 x11font_canonify_fontname,
174 x11font_scale_fontname,
178 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
180 Display *disp = GDK_DISPLAY();
181 Atom fontprop = XInternAtom(disp, "FONT", False);
183 if (XGetFontProperty(xfs, fontprop, &ret)) {
184 char *name = XGetAtomName(disp, (Atom)ret);
185 if (name && name[0] == '-') {
186 const char *strings[13];
187 char *dupname, *extrafree = NULL, *ret;
191 p = q = dupname = dupstr(name); /* skip initial minus */
194 while (*p && nstr < lenof(strings)) {
197 strings[nstr++] = p+1;
202 if (nstr < lenof(strings)) {
204 return NULL; /* XLFD was malformed */
211 /* 4 is `wideness', which obviously may have changed. */
212 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
213 strings[4] = strings[5] = "*";
214 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
217 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
218 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
219 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
220 "-", strings[ 9], "-", strings[10], "-", strings[11],
221 "-", strings[12], NULL);
231 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
237 return XTextWidth16(xfs, &space, 1);
239 return XTextWidth(xfs, "0", 1);
243 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
248 * Not to be confused with x11font_has_glyph, which is a method of
249 * the x11font 'class' and hence takes a unifont as argument. This
250 * is the low-level function which grubs about in an actual
251 * XFontStruct to see if a given glyph exists.
253 * We must do this ourselves rather than letting Xlib's
254 * XTextExtents16 do the job, because XTextExtents will helpfully
255 * substitute the font's default_char for any missing glyph and
256 * not tell us it did so, which precisely won't help us find out
257 * which glyphs _are_ missing.
259 * The man page for XQueryFont is rather confusing about how the
260 * per_char array in the XFontStruct is laid out, because it gives
261 * formulae for determining the two-byte X character code _from_
262 * an index into the per_char array. Going the other way, it's
265 * The valid character codes have byte1 between min_byte1 and
266 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
267 * max_char_or_byte2 inclusive. This gives a rectangle of size
268 * (max_byte2-min_byte1+1) by
269 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
270 * rectangle encoded in the per_char array. Hence, given a
271 * character code which is valid in the sense that it falls
272 * somewhere in that rectangle, its index in per_char is given by
275 * x = byte2 - min_char_or_byte2
276 * y = byte1 - min_byte1
277 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
279 * If min_byte1 and min_byte2 are both zero, that's a special case
280 * which can be treated as if min_byte2 was 1 instead, i.e. the
281 * per_char array just runs from min_char_or_byte2 to
282 * max_char_or_byte2 inclusive, and byte1 should always be zero.
285 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
288 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
289 index = byte2 - xfs->min_char_or_byte2;
291 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
293 index = ((byte2 - xfs->min_char_or_byte2) +
294 ((byte1 - xfs->min_byte1) *
295 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
298 if (!xfs->per_char) /* per_char NULL => everything in range exists */
301 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
302 xfs->per_char[index].width > 0);
305 static unifont *x11font_create(GtkWidget *widget, const char *name,
307 int shadowoffset, int shadowalways)
309 struct x11font *xfont;
311 Display *disp = GDK_DISPLAY();
312 Atom charset_registry, charset_encoding, spacing;
313 unsigned long registry_ret, encoding_ret, spacing_ret;
314 int pubcs, realcs, sixteen_bit, variable;
317 xfs = XLoadQueryFont(disp, name);
321 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
322 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
324 pubcs = realcs = CS_NONE;
328 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
329 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
331 reg = XGetAtomName(disp, (Atom)registry_ret);
332 enc = XGetAtomName(disp, (Atom)encoding_ret);
334 char *encoding = dupcat(reg, "-", enc, NULL);
335 pubcs = realcs = charset_from_xenc(encoding);
338 * iso10646-1 is the only wide font encoding we
339 * support. In this case, we expect clients to give us
340 * UTF-8, which this module must internally convert
341 * into 16-bit Unicode.
343 if (!strcasecmp(encoding, "iso10646-1")) {
345 pubcs = realcs = CS_UTF8;
349 * Hack for X line-drawing characters: if the primary font
350 * is encoded as ISO-8859-1, and has valid glyphs in the
351 * low character positions, it is assumed that those
352 * glyphs are the VT100 line-drawing character set.
354 if (pubcs == CS_ISO8859_1) {
356 for (ch = 1; ch < 32; ch++)
357 if (!x11_font_has_glyph(xfs, 0, ch))
360 realcs = CS_ISO8859_1_X11;
367 spacing = XInternAtom(disp, "SPACING", False);
368 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
370 spc = XGetAtomName(disp, (Atom)spacing_ret);
372 if (spc && strchr("CcMm", spc[0]))
376 xfont = snew(struct x11font);
377 xfont->u.vt = &x11font_vtable;
378 xfont->u.width = x11_font_width(xfs, sixteen_bit);
379 xfont->u.ascent = xfs->ascent;
380 xfont->u.descent = xfs->descent;
381 xfont->u.height = xfont->u.ascent + xfont->u.descent;
382 xfont->u.public_charset = pubcs;
383 xfont->u.want_fallback = TRUE;
384 xfont->real_charset = realcs;
385 xfont->fonts[0] = xfs;
386 xfont->allocated[0] = TRUE;
387 xfont->sixteen_bit = sixteen_bit;
388 xfont->variable = variable;
391 xfont->shadowoffset = shadowoffset;
392 xfont->shadowalways = shadowalways;
394 for (i = 1; i < lenof(xfont->fonts); i++) {
395 xfont->fonts[i] = NULL;
396 xfont->allocated[i] = FALSE;
399 return (unifont *)xfont;
402 static void x11font_destroy(unifont *font)
404 Display *disp = GDK_DISPLAY();
405 struct x11font *xfont = (struct x11font *)font;
408 for (i = 0; i < lenof(xfont->fonts); i++)
410 XFreeFont(disp, xfont->fonts[i]);
414 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
416 Display *disp = GDK_DISPLAY();
417 char *derived_name = x11_guess_derived_font_name
418 (xfont->fonts[0], sfid & 1, !!(sfid & 2));
419 xfont->fonts[sfid] = XLoadQueryFont(disp, derived_name);
420 xfont->allocated[sfid] = TRUE;
422 /* Note that xfont->fonts[sfid] may still be NULL, if XLQF failed. */
425 static int x11font_has_glyph(unifont *font, wchar_t glyph)
427 struct x11font *xfont = (struct x11font *)font;
429 if (xfont->sixteen_bit) {
431 * This X font has 16-bit character indices, which means
432 * we can directly use our Unicode input value.
434 return x11_font_has_glyph(xfont->fonts[0], glyph >> 8, glyph & 0xFF);
437 * This X font has 8-bit indices, so we must convert to the
438 * appropriate character set.
441 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
442 sbstring, 2, "", NULL, NULL);
443 if (sblen == 0 || !sbstring[0])
444 return FALSE; /* not even in the charset */
446 return x11_font_has_glyph(xfont->fonts[0], 0,
447 (unsigned char)sbstring[0]);
451 #if !GTK_CHECK_VERSION(2,0,0)
452 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
455 static void x11font_really_draw_text_16(GdkDrawable *target, XFontStruct *xfs,
457 const XChar2b *string, int nchars,
459 int fontvariable, int cellwidth)
461 Display *disp = GDK_DISPLAY();
462 int step, nsteps, centre;
466 * In a variable-pitch font, we draw one character at a
467 * time, and centre it in the character cell.
474 * In a fixed-pitch font, we can draw the whole lot in one go.
481 while (nsteps-- > 0) {
484 X += (cellwidth - XTextWidth16(xfs, string, step)) / 2;
486 XDrawString16(disp, GDK_DRAWABLE_XID(target), gc,
489 XDrawString16(disp, GDK_DRAWABLE_XID(target), gc,
490 X + shadowoffset, y, string, step);
497 static void x11font_really_draw_text(GdkDrawable *target, XFontStruct *xfs,
499 const char *string, int nchars,
501 int fontvariable, int cellwidth)
503 Display *disp = GDK_DISPLAY();
504 int step, nsteps, centre;
508 * In a variable-pitch font, we draw one character at a
509 * time, and centre it in the character cell.
516 * In a fixed-pitch font, we can draw the whole lot in one go.
523 while (nsteps-- > 0) {
526 X += (cellwidth - XTextWidth(xfs, string, step)) / 2;
528 XDrawString(disp, GDK_DRAWABLE_XID(target), gc,
531 XDrawString(disp, GDK_DRAWABLE_XID(target), gc,
532 X + shadowoffset, y, string, step);
539 static void x11font_draw_text(GdkDrawable *target, GdkGC *gdkgc, unifont *font,
540 int x, int y, const wchar_t *string, int len,
541 int wide, int bold, int cellwidth)
543 Display *disp = GDK_DISPLAY();
544 struct x11font *xfont = (struct x11font *)font;
545 GC gc = GDK_GC_XGC(gdkgc);
547 int shadowoffset = 0;
548 int mult = (wide ? 2 : 1);
554 * Decide which subfont we're using, and whether we have to
557 if (xfont->shadowalways && bold) {
558 shadowoffset = xfont->shadowoffset;
561 sfid = 2 * wide + bold;
562 if (!xfont->allocated[sfid])
563 x11_alloc_subfont(xfont, sfid);
564 if (bold && !xfont->fonts[sfid]) {
566 shadowoffset = xfont->shadowoffset;
567 sfid = 2 * wide + bold;
568 if (!xfont->allocated[sfid])
569 x11_alloc_subfont(xfont, sfid);
572 if (!xfont->fonts[sfid])
573 return; /* we've tried our best, but no luck */
575 XSetFont(disp, gc, xfont->fonts[sfid]->fid);
577 if (xfont->sixteen_bit) {
579 * This X font has 16-bit character indices, which means
580 * we can directly use our Unicode input string.
585 xcs = snewn(len, XChar2b);
586 for (i = 0; i < len; i++) {
587 xcs[i].byte1 = string[i] >> 8;
588 xcs[i].byte2 = string[i];
591 x11font_really_draw_text_16(target, xfont->fonts[sfid], gc, x, y,
592 xcs, len, shadowoffset,
593 xfont->variable, cellwidth * mult);
597 * This X font has 8-bit indices, so we must convert to the
598 * appropriate character set.
600 char *sbstring = snewn(len+1, char);
601 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
602 sbstring, len+1, ".", NULL, NULL);
603 x11font_really_draw_text(target, xfont->fonts[sfid], gc, x, y,
604 sbstring, sblen, shadowoffset,
605 xfont->variable, cellwidth * mult);
610 static void x11font_enum_fonts(GtkWidget *widget,
611 fontsel_add_entry callback, void *callback_ctx)
615 int nnames, i, max, tmpsize;
619 fontnames = XListFonts(GDK_DISPLAY(), "*", max, &nnames);
621 XFreeFontNames(fontnames);
629 for (i = 0; i < nnames; i++) {
630 if (fontnames[i][0] == '-') {
632 * Dismember an XLFD and convert it into the format
633 * we'll be using in the font selector.
635 char *components[14];
636 char *p, *font, *style, *stylekey, *charset;
637 int j, weightkey, slantkey, setwidthkey;
638 int thistmpsize, fontsize, flags;
640 thistmpsize = 4 * strlen(fontnames[i]) + 256;
641 if (tmpsize < thistmpsize) {
642 tmpsize = thistmpsize;
643 tmp = sresize(tmp, tmpsize, char);
645 strcpy(tmp, fontnames[i]);
648 for (j = 0; j < 14; j++) {
652 while (*p && *p != '-')
658 * Font name is made up of fields 0 and 1, in reverse
659 * order with parentheses. (This is what the GTK 1.2 X
660 * font selector does, and it seems to come out
661 * looking reasonably sensible.)
664 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
667 * Charset is made up of fields 12 and 13.
670 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
673 * Style is a mixture of quite a lot of the fields,
674 * with some strange formatting.
677 p += sprintf(p, "%s", components[2][0] ? components[2] :
679 if (!g_ascii_strcasecmp(components[3], "i"))
680 p += sprintf(p, " italic");
681 else if (!g_ascii_strcasecmp(components[3], "o"))
682 p += sprintf(p, " oblique");
683 else if (!g_ascii_strcasecmp(components[3], "ri"))
684 p += sprintf(p, " reverse italic");
685 else if (!g_ascii_strcasecmp(components[3], "ro"))
686 p += sprintf(p, " reverse oblique");
687 else if (!g_ascii_strcasecmp(components[3], "ot"))
688 p += sprintf(p, " other-slant");
689 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
690 p += sprintf(p, " %s", components[4]);
691 if (!g_ascii_strcasecmp(components[10], "m"))
692 p += sprintf(p, " [M]");
693 if (!g_ascii_strcasecmp(components[10], "c"))
694 p += sprintf(p, " [C]");
695 if (components[5][0])
696 p += sprintf(p, " %s", components[5]);
699 * Style key is the same stuff as above, but with a
700 * couple of transformations done on it to make it
701 * sort more sensibly.
705 if (!g_ascii_strcasecmp(components[2], "medium") ||
706 !g_ascii_strcasecmp(components[2], "regular") ||
707 !g_ascii_strcasecmp(components[2], "normal") ||
708 !g_ascii_strcasecmp(components[2], "book"))
710 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
711 !g_ascii_strncasecmp(components[2], "semi", 4))
715 if (!g_ascii_strcasecmp(components[3], "r"))
717 else if (!g_ascii_strncasecmp(components[3], "r", 1))
721 if (!g_ascii_strcasecmp(components[4], "normal"))
726 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
728 (int)strlen(components[2]), components[2],
730 (int)strlen(components[3]), components[3],
732 (int)strlen(components[4]), components[4],
733 (int)strlen(components[10]), components[10],
734 (int)strlen(components[5]), components[5]);
736 assert(p - tmp < thistmpsize);
739 * Size is in pixels, for our application, so we
740 * derive it directly from the pixel size field,
743 fontsize = atoi(components[6]);
746 * Flags: we need to know whether this is a monospaced
747 * font, which we do by examining the spacing field
750 flags = FONTFLAG_SERVERSIDE;
751 if (!strchr("CcMm", components[10][0]))
752 flags |= FONTFLAG_NONMONOSPACED;
755 * Not sure why, but sometimes the X server will
756 * deliver dummy font types in which fontsize comes
757 * out as zero. Filter those out.
760 callback(callback_ctx, fontnames[i], font, charset,
761 style, stylekey, fontsize, flags, &x11font_vtable);
764 * This isn't an XLFD, so it must be an alias.
765 * Transmit it with mostly null data.
767 * It would be nice to work out if it's monospaced
768 * here, but at the moment I can't see that being
769 * anything but computationally hideous. Ah well.
771 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
772 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
775 XFreeFontNames(fontnames);
778 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
779 int *size, int *flags,
783 * When given an X11 font name to try to make sense of for a
784 * font selector, we must attempt to load it (to see if it
785 * exists), and then canonify it by extracting its FONT
786 * property, which should give its full XLFD even if what we
787 * originally had was a wildcard.
789 * However, we must carefully avoid canonifying font
790 * _aliases_, unless specifically asked to, because the font
791 * selector treats them as worthwhile in their own right.
794 Display *disp = GDK_DISPLAY();
795 Atom fontprop, fontprop2;
798 xfs = XLoadQueryFont(disp, name);
801 return NULL; /* didn't make sense to us, sorry */
803 fontprop = XInternAtom(disp, "FONT", False);
805 if (XGetFontProperty(xfs, fontprop, &ret)) {
806 char *newname = XGetAtomName(disp, (Atom)ret);
808 unsigned long fsize = 12;
810 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
811 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
813 XFreeFont(disp, xfs);
815 if (name[0] == '-' || resolve_aliases)
816 *flags = FONTFLAG_SERVERSIDE;
818 *flags = FONTFLAG_SERVERALIAS;
820 return dupstr(name[0] == '-' || resolve_aliases ?
826 XFreeFont(disp, xfs);
828 return NULL; /* something went wrong */
831 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
834 return NULL; /* shan't */
837 #endif /* NOT_X_WINDOWS */
839 #if GTK_CHECK_VERSION(2,0,0)
841 /* ----------------------------------------------------------------------
842 * Pango font implementation (for GTK 2 only).
845 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
846 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
849 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
850 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
851 int x, int y, const wchar_t *string, int len,
852 int wide, int bold, int cellwidth);
853 static unifont *pangofont_create(GtkWidget *widget, const char *name,
855 int shadowoffset, int shadowalways);
856 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
858 int shadowoffset, int shadowalways);
859 static void pangofont_destroy(unifont *font);
860 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
862 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
863 int *size, int *flags,
864 int resolve_aliases);
865 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
873 PangoFontDescription *desc;
876 * The containing widget.
880 * Data passed in to unifont_create().
882 int bold, shadowoffset, shadowalways;
885 static const struct unifont_vtable pangofont_vtable = {
887 pangofont_create_fallback,
891 pangofont_enum_fonts,
892 pangofont_canonify_fontname,
893 pangofont_scale_fontname,
898 * This function is used to rigorously validate a
899 * PangoFontDescription. Later versions of Pango have a nasty
900 * habit of accepting _any_ old string as input to
901 * pango_font_description_from_string and returning a font
902 * description which can actually be used to display text, even if
903 * they have to do it by falling back to their most default font.
904 * This is doubtless helpful in some situations, but not here,
905 * because we need to know if a Pango font string actually _makes
906 * sense_ in order to fall back to treating it as an X font name
907 * if it doesn't. So we check that the font family is actually one
908 * supported by Pango.
910 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
911 PangoFontDescription *desc)
913 #ifndef PANGO_PRE_1POINT6
916 PangoFontFamily **families;
917 int i, nfamilies, matched;
920 * Ask Pango for a list of font families, and iterate through
921 * them to see if one of them matches the family in the
922 * PangoFontDescription.
924 #ifndef PANGO_PRE_1POINT6
925 map = pango_context_get_font_map(ctx);
928 pango_font_map_list_families(map, &families, &nfamilies);
930 pango_context_list_families(ctx, &families, &nfamilies);
934 for (i = 0; i < nfamilies; i++) {
935 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
936 pango_font_description_get_family(desc))) {
946 static unifont *pangofont_create_internal(GtkWidget *widget,
948 PangoFontDescription *desc,
950 int shadowoffset, int shadowalways)
952 struct pangofont *pfont;
953 #ifndef PANGO_PRE_1POINT6
957 PangoFontMetrics *metrics;
959 #ifndef PANGO_PRE_1POINT6
960 map = pango_context_get_font_map(ctx);
962 pango_font_description_free(desc);
965 fset = pango_font_map_load_fontset(map, ctx, desc,
966 pango_context_get_language(ctx));
968 fset = pango_context_load_fontset(ctx, desc,
969 pango_context_get_language(ctx));
972 pango_font_description_free(desc);
975 metrics = pango_fontset_get_metrics(fset);
977 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
978 pango_font_description_free(desc);
979 g_object_unref(fset);
983 pfont = snew(struct pangofont);
984 pfont->u.vt = &pangofont_vtable;
986 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
987 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
988 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
989 pfont->u.height = pfont->u.ascent + pfont->u.descent;
990 pfont->u.want_fallback = FALSE;
991 /* The Pango API is hardwired to UTF-8 */
992 pfont->u.public_charset = CS_UTF8;
995 pfont->widget = widget;
997 pfont->shadowoffset = shadowoffset;
998 pfont->shadowalways = shadowalways;
1000 pango_font_metrics_unref(metrics);
1002 return (unifont *)pfont;
1005 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1007 int shadowoffset, int shadowalways)
1010 PangoFontDescription *desc;
1012 desc = pango_font_description_from_string(name);
1015 ctx = gtk_widget_get_pango_context(widget);
1017 pango_font_description_free(desc);
1020 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1021 pango_font_description_free(desc);
1024 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1025 shadowoffset, shadowalways);
1028 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1030 int shadowoffset, int shadowalways)
1033 PangoFontDescription *desc;
1035 desc = pango_font_description_from_string("Monospace");
1038 ctx = gtk_widget_get_pango_context(widget);
1040 pango_font_description_free(desc);
1043 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1044 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1045 shadowoffset, shadowalways);
1048 static void pangofont_destroy(unifont *font)
1050 struct pangofont *pfont = (struct pangofont *)font;
1051 pango_font_description_free(pfont->desc);
1052 g_object_unref(pfont->fset);
1056 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1058 /* Pango implements font fallback, so assume it has everything */
1062 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1063 int x, int y, const wchar_t *string, int len,
1064 int wide, int bold, int cellwidth)
1066 struct pangofont *pfont = (struct pangofont *)font;
1067 PangoLayout *layout;
1068 PangoRectangle rect;
1069 char *utfstring, *utfptr;
1071 int shadowbold = FALSE;
1076 y -= pfont->u.ascent;
1078 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1079 pango_layout_set_font_description(layout, pfont->desc);
1080 if (bold > pfont->bold) {
1081 if (pfont->shadowalways)
1084 PangoFontDescription *desc2 =
1085 pango_font_description_copy_static(pfont->desc);
1086 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1087 pango_layout_set_font_description(layout, desc2);
1092 * Pango always expects UTF-8, so convert the input wide character
1095 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1096 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1097 utfstring, len*6+1, ".", NULL, NULL);
1100 while (utflen > 0) {
1104 * We want to display every character from this string in
1105 * the centre of its own character cell. In the worst case,
1106 * this requires a separate text-drawing call for each
1107 * character; but in the common case where the font is
1108 * properly fixed-width, we can draw many characters in one
1109 * go which is much faster.
1111 * This still isn't really ideal. If you look at what
1112 * happens in the X protocol as a result of all of this, you
1113 * find - naturally enough - that each call to
1114 * gdk_draw_layout() generates a separate set of X RENDER
1115 * operations involving creating a picture, setting a clip
1116 * rectangle, doing some drawing and undoing the whole lot.
1117 * In an ideal world, we should _always_ be able to turn the
1118 * contents of this loop into a single RenderCompositeGlyphs
1119 * operation which internally specifies inter-character
1120 * deltas to get the spacing right, which would give us full
1121 * speed _even_ in the worst case of a non-fixed-width font.
1122 * However, Pango's architecture and documentation are so
1123 * unhelpful that I have no idea how if at all to persuade
1128 * Start by extracting a single UTF-8 character from the
1132 while (clen < utflen &&
1133 (unsigned char)utfptr[clen] >= 0x80 &&
1134 (unsigned char)utfptr[clen] < 0xC0)
1139 * If it's a right-to-left character, we must display it on
1140 * its own, to stop Pango helpfully re-reversing our already
1143 if (!is_rtl(string[0])) {
1146 * See if that character has the width we expect.
1148 pango_layout_set_text(layout, utfptr, clen);
1149 pango_layout_get_pixel_extents(layout, NULL, &rect);
1151 if (rect.width == cellwidth) {
1153 * Try extracting more characters, for as long as they
1154 * stay well-behaved.
1156 while (clen < utflen) {
1158 clen++; /* skip UTF-8 introducer byte */
1159 while (clen < utflen &&
1160 (unsigned char)utfptr[clen] >= 0x80 &&
1161 (unsigned char)utfptr[clen] < 0xC0)
1164 pango_layout_set_text(layout, utfptr, clen);
1165 pango_layout_get_pixel_extents(layout, NULL, &rect);
1166 if (rect.width != n * cellwidth) {
1175 pango_layout_set_text(layout, utfptr, clen);
1176 pango_layout_get_pixel_extents(layout, NULL, &rect);
1177 gdk_draw_layout(target, gc, x + (n*cellwidth - rect.width)/2,
1178 y + (pfont->u.height - rect.height)/2, layout);
1180 gdk_draw_layout(target, gc, x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1181 y + (pfont->u.height - rect.height)/2, layout);
1191 g_object_unref(layout);
1195 * Dummy size value to be used when converting a
1196 * PangoFontDescription of a scalable font to a string for
1199 #define PANGO_DUMMY_SIZE 12
1201 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1205 #ifndef PANGO_PRE_1POINT6
1208 PangoFontFamily **families;
1211 ctx = gtk_widget_get_pango_context(widget);
1216 * Ask Pango for a list of font families, and iterate through
1219 #ifndef PANGO_PRE_1POINT6
1220 map = pango_context_get_font_map(ctx);
1223 pango_font_map_list_families(map, &families, &nfamilies);
1225 pango_context_list_families(ctx, &families, &nfamilies);
1227 for (i = 0; i < nfamilies; i++) {
1228 PangoFontFamily *family = families[i];
1229 const char *familyname;
1231 PangoFontFace **faces;
1235 * Set up our flags for this font family, and get the name
1238 flags = FONTFLAG_CLIENTSIDE;
1239 #ifndef PANGO_PRE_1POINT4
1241 * In very early versions of Pango, we can't tell
1242 * monospaced fonts from non-monospaced.
1244 if (!pango_font_family_is_monospace(family))
1245 flags |= FONTFLAG_NONMONOSPACED;
1247 familyname = pango_font_family_get_name(family);
1250 * Go through the available font faces in this family.
1252 pango_font_family_list_faces(family, &faces, &nfaces);
1253 for (j = 0; j < nfaces; j++) {
1254 PangoFontFace *face = faces[j];
1255 PangoFontDescription *desc;
1256 const char *facename;
1258 int k, nsizes, dummysize;
1261 * Get the face name string.
1263 facename = pango_font_face_get_face_name(face);
1266 * Set up a font description with what we've got so
1267 * far. We'll fill in the size field manually and then
1268 * call pango_font_description_to_string() to give the
1269 * full real name of the specific font.
1271 desc = pango_font_face_describe(face);
1274 * See if this font has a list of specific sizes.
1276 #ifndef PANGO_PRE_1POINT4
1277 pango_font_face_list_sizes(face, &sizes, &nsizes);
1280 * In early versions of Pango, that call wasn't
1281 * supported; we just have to assume everything is
1288 * Write a single entry with a dummy size.
1290 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1296 * If so, go through them one by one.
1298 for (k = 0; k < nsizes; k++) {
1302 pango_font_description_set_size(desc, sizes[k]);
1304 fullname = pango_font_description_to_string(desc);
1307 * Construct the sorting key for font styles.
1313 n = pango_font_description_get_weight(desc);
1314 /* Weight: normal, then lighter, then bolder */
1315 if (n <= PANGO_WEIGHT_NORMAL)
1316 n = PANGO_WEIGHT_NORMAL - n;
1317 p += sprintf(p, "%4d", n);
1319 n = pango_font_description_get_style(desc);
1320 p += sprintf(p, " %2d", n);
1322 n = pango_font_description_get_stretch(desc);
1323 /* Stretch: closer to normal sorts earlier */
1324 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1325 (n < PANGO_STRETCH_NORMAL);
1326 p += sprintf(p, " %2d", n);
1328 n = pango_font_description_get_variant(desc);
1329 p += sprintf(p, " %2d", n);
1334 * Got everything. Hand off to the callback.
1335 * (The charset string is NULL, because only
1336 * server-side X fonts use it.)
1338 callback(callback_ctx, fullname, familyname, NULL, facename,
1340 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1341 flags, &pangofont_vtable);
1345 if (sizes != &dummysize)
1348 pango_font_description_free(desc);
1355 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1356 int *size, int *flags,
1357 int resolve_aliases)
1360 * When given a Pango font name to try to make sense of for a
1361 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1362 * extract its original size (in pixels) into the `size' field.
1365 #ifndef PANGO_PRE_1POINT6
1368 PangoFontDescription *desc;
1370 PangoFontMetrics *metrics;
1371 char *newname, *retname;
1373 desc = pango_font_description_from_string(name);
1376 ctx = gtk_widget_get_pango_context(widget);
1378 pango_font_description_free(desc);
1381 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1382 pango_font_description_free(desc);
1385 #ifndef PANGO_PRE_1POINT6
1386 map = pango_context_get_font_map(ctx);
1388 pango_font_description_free(desc);
1391 fset = pango_font_map_load_fontset(map, ctx, desc,
1392 pango_context_get_language(ctx));
1394 fset = pango_context_load_fontset(ctx, desc,
1395 pango_context_get_language(ctx));
1398 pango_font_description_free(desc);
1401 metrics = pango_fontset_get_metrics(fset);
1403 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1404 pango_font_description_free(desc);
1405 g_object_unref(fset);
1409 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1410 *flags = FONTFLAG_CLIENTSIDE;
1411 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1412 newname = pango_font_description_to_string(desc);
1413 retname = dupstr(newname);
1416 pango_font_metrics_unref(metrics);
1417 pango_font_description_free(desc);
1418 g_object_unref(fset);
1423 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1426 PangoFontDescription *desc;
1427 char *newname, *retname;
1429 desc = pango_font_description_from_string(name);
1432 pango_font_description_set_size(desc, size * PANGO_SCALE);
1433 newname = pango_font_description_to_string(desc);
1434 retname = dupstr(newname);
1436 pango_font_description_free(desc);
1441 #endif /* GTK_CHECK_VERSION(2,0,0) */
1443 /* ----------------------------------------------------------------------
1444 * Outermost functions which do the vtable dispatch.
1448 * Complete list of font-type subclasses. Listed in preference
1449 * order for unifont_create(). (That is, in the extremely unlikely
1450 * event that the same font name is valid as both a Pango and an
1451 * X11 font, it will be interpreted as the former in the absence
1452 * of an explicit type-disambiguating prefix.)
1454 * The 'multifont' subclass is omitted here, as discussed above.
1456 static const struct unifont_vtable *unifont_types[] = {
1457 #if GTK_CHECK_VERSION(2,0,0)
1460 #ifndef NOT_X_WINDOWS
1466 * Function which takes a font name and processes the optional
1467 * scheme prefix. Returns the tail of the font name suitable for
1468 * passing to individual font scheme functions, and also provides
1469 * a subrange of the unifont_types[] array above.
1471 * The return values `start' and `end' denote a half-open interval
1472 * in unifont_types[]; that is, the correct way to iterate over
1475 * for (i = start; i < end; i++) {...}
1477 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1479 int colonpos = strcspn(name, ":");
1482 if (name[colonpos]) {
1484 * There's a colon prefix on the font name. Use it to work
1485 * out which subclass to use.
1487 for (i = 0; i < lenof(unifont_types); i++) {
1488 if (strlen(unifont_types[i]->prefix) == colonpos &&
1489 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1492 return name + colonpos + 1;
1496 * None matched, so return an empty scheme list to prevent
1497 * any scheme from being called at all.
1500 return name + colonpos + 1;
1503 * No colon prefix, so just use all the subclasses.
1506 *end = lenof(unifont_types);
1511 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1512 int bold, int shadowoffset, int shadowalways)
1516 name = unifont_do_prefix(name, &start, &end);
1518 for (i = start; i < end; i++) {
1519 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1520 shadowoffset, shadowalways);
1524 return NULL; /* font not found in any scheme */
1527 void unifont_destroy(unifont *font)
1529 font->vt->destroy(font);
1532 void unifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1533 int x, int y, const wchar_t *string, int len,
1534 int wide, int bold, int cellwidth)
1536 font->vt->draw_text(target, gc, font, x, y, string, len,
1537 wide, bold, cellwidth);
1540 /* ----------------------------------------------------------------------
1541 * Multiple-font wrapper. This is a type of unifont which encapsulates
1542 * up to two other unifonts, permitting missing glyphs in the main
1543 * font to be filled in by a fallback font.
1545 * This is a type of unifont just like the previous two, but it has a
1546 * separate constructor which is manually called by the client, so it
1547 * doesn't appear in the list of available font types enumerated by
1548 * unifont_create. This means it's not used by unifontsel either, so
1549 * it doesn't need to support any methods except draw_text and
1553 static void multifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1554 int x, int y, const wchar_t *string, int len,
1555 int wide, int bold, int cellwidth);
1556 static void multifont_destroy(unifont *font);
1564 static const struct unifont_vtable multifont_vtable = {
1565 NULL, /* creation is done specially */
1569 multifont_draw_text,
1576 unifont *multifont_create(GtkWidget *widget, const char *name,
1578 int shadowoffset, int shadowalways)
1581 unifont *font, *fallback;
1582 struct multifont *mfont;
1584 font = unifont_create(widget, name, wide, bold,
1585 shadowoffset, shadowalways);
1590 if (font->want_fallback) {
1591 for (i = 0; i < lenof(unifont_types); i++) {
1592 if (unifont_types[i]->create_fallback) {
1593 fallback = unifont_types[i]->create_fallback
1594 (widget, font->height, wide, bold,
1595 shadowoffset, shadowalways);
1603 * Construct our multifont. Public members are all copied from the
1604 * primary font we're wrapping.
1606 mfont = snew(struct multifont);
1607 mfont->u.vt = &multifont_vtable;
1608 mfont->u.width = font->width;
1609 mfont->u.ascent = font->ascent;
1610 mfont->u.descent = font->descent;
1611 mfont->u.height = font->height;
1612 mfont->u.public_charset = font->public_charset;
1613 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1615 mfont->fallback = fallback;
1617 return (unifont *)mfont;
1620 static void multifont_destroy(unifont *font)
1622 struct multifont *mfont = (struct multifont *)font;
1623 unifont_destroy(mfont->main);
1624 if (mfont->fallback)
1625 unifont_destroy(mfont->fallback);
1629 static void multifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1630 int x, int y, const wchar_t *string, int len,
1631 int wide, int bold, int cellwidth)
1633 struct multifont *mfont = (struct multifont *)font;
1638 * Find a maximal sequence of characters which are, or are
1639 * not, supported by our main font.
1641 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1644 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1650 unifont_draw_text(target, gc, ok ? mfont->main : mfont->fallback,
1651 x, y, string, i, wide, bold, cellwidth);
1658 #if GTK_CHECK_VERSION(2,0,0)
1660 /* ----------------------------------------------------------------------
1661 * Implementation of a unified font selector. Used on GTK 2 only;
1662 * for GTK 1 we still use the standard font selector.
1665 typedef struct fontinfo fontinfo;
1667 typedef struct unifontsel_internal {
1668 /* This must be the structure's first element, for cross-casting */
1670 GtkListStore *family_model, *style_model, *size_model;
1671 GtkWidget *family_list, *style_list, *size_entry, *size_list;
1672 GtkWidget *filter_buttons[4];
1673 int n_filter_buttons;
1674 GtkWidget *preview_area;
1675 GdkPixmap *preview_pixmap;
1676 int preview_width, preview_height;
1677 GdkColor preview_fg, preview_bg;
1679 tree234 *fonts_by_realname, *fonts_by_selorder;
1681 int selsize, intendedsize;
1682 int inhibit_response; /* inhibit callbacks when we change GUI controls */
1683 } unifontsel_internal;
1686 * The structure held in the tree234s. All the string members are
1687 * part of the same allocated area, so don't need freeing
1692 char *family, *charset, *style, *stylekey;
1695 * Fallback sorting key, to permit multiple identical entries
1696 * to exist in the selorder tree.
1700 * Indices mapping fontinfo structures to indices in the list
1701 * boxes. sizeindex is irrelevant if the font is scalable
1704 int familyindex, styleindex, sizeindex;
1706 * The class of font.
1708 const struct unifont_vtable *fontclass;
1711 struct fontinfo_realname_find {
1712 const char *realname;
1716 static int strnullcasecmp(const char *a, const char *b)
1721 * If exactly one of the inputs is NULL, it compares before
1724 if ((i = (!b) - (!a)) != 0)
1728 * NULL compares equal.
1734 * Otherwise, ordinary strcasecmp.
1736 return g_ascii_strcasecmp(a, b);
1739 static int fontinfo_realname_compare(void *av, void *bv)
1741 fontinfo *a = (fontinfo *)av;
1742 fontinfo *b = (fontinfo *)bv;
1745 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
1747 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1748 return ((a->flags & FONTFLAG_SORT_MASK) <
1749 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1753 static int fontinfo_realname_find(void *av, void *bv)
1755 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
1756 fontinfo *b = (fontinfo *)bv;
1759 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
1761 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1762 return ((a->flags & FONTFLAG_SORT_MASK) <
1763 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1767 static int fontinfo_selorder_compare(void *av, void *bv)
1769 fontinfo *a = (fontinfo *)av;
1770 fontinfo *b = (fontinfo *)bv;
1772 if ((i = strnullcasecmp(a->family, b->family)) != 0)
1775 * Font class comes immediately after family, so that fonts
1776 * from different classes with the same family
1778 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1779 return ((a->flags & FONTFLAG_SORT_MASK) <
1780 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1781 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
1783 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
1785 if ((i = strnullcasecmp(a->style, b->style)) != 0)
1787 if (a->size != b->size)
1788 return (a->size < b->size ? -1 : +1);
1789 if (a->index != b->index)
1790 return (a->index < b->index ? -1 : +1);
1794 static void unifontsel_deselect(unifontsel_internal *fs)
1796 fs->selected = NULL;
1797 gtk_list_store_clear(fs->style_model);
1798 gtk_list_store_clear(fs->size_model);
1799 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
1800 gtk_widget_set_sensitive(fs->size_entry, FALSE);
1803 static void unifontsel_setup_familylist(unifontsel_internal *fs)
1806 int i, listindex, minpos = -1, maxpos = -1;
1807 char *currfamily = NULL;
1811 gtk_list_store_clear(fs->family_model);
1815 * Search through the font tree for anything matching our
1816 * current filter criteria. When we find one, add its font
1817 * name to the list box.
1819 for (i = 0 ;; i++) {
1820 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1822 * info may be NULL if we've just run off the end of the
1823 * tree. We must still do a processing pass in that
1824 * situation, in case we had an unfinished font record in
1827 if (info && (info->flags &~ fs->filter_flags)) {
1828 info->familyindex = -1;
1829 continue; /* we're filtering out this font */
1831 if (!info || strnullcasecmp(currfamily, info->family) ||
1832 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
1834 * We've either finished a family, or started a new
1838 gtk_list_store_append(fs->family_model, &iter);
1839 gtk_list_store_set(fs->family_model, &iter,
1840 0, currfamily, 1, minpos, 2, maxpos+1, -1);
1845 currfamily = info->family;
1846 currflags = info->flags & FONTFLAG_SORT_MASK;
1850 break; /* now we're done */
1851 info->familyindex = listindex;
1856 * If we've just filtered out the previously selected font,
1857 * deselect it thoroughly.
1859 if (fs->selected && fs->selected->familyindex < 0)
1860 unifontsel_deselect(fs);
1863 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
1867 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
1868 char *currcs = NULL, *currstyle = NULL;
1871 gtk_list_store_clear(fs->style_model);
1876 * Search through the font tree for anything matching our
1877 * current filter criteria. When we find one, add its charset
1878 * and/or style name to the list box.
1880 for (i = start; i <= end; i++) {
1884 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1886 * info may be NULL if we've just run off the end of the
1887 * relevant data. We must still do a processing pass in
1888 * that situation, in case we had an unfinished font
1889 * record in progress.
1891 if (info && (info->flags &~ fs->filter_flags)) {
1892 info->styleindex = -1;
1893 continue; /* we're filtering out this font */
1895 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
1896 strnullcasecmp(currstyle, info->style)) {
1898 * We've either finished a style/charset, or started a
1903 gtk_list_store_append(fs->style_model, &iter);
1904 gtk_list_store_set(fs->style_model, &iter,
1905 0, currstyle, 1, minpos, 2, maxpos+1,
1911 if (info->charset && strnullcasecmp(currcs, info->charset)) {
1912 gtk_list_store_append(fs->style_model, &iter);
1913 gtk_list_store_set(fs->style_model, &iter,
1914 0, info->charset, 1, -1, 2, -1,
1918 currcs = info->charset;
1919 currstyle = info->style;
1923 break; /* now we're done */
1924 info->styleindex = listindex;
1929 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
1931 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
1939 gtk_list_store_clear(fs->size_model);
1943 * Search through the font tree for anything matching our
1944 * current filter criteria. When we find one, add its font
1945 * name to the list box.
1947 for (i = start; i < end; i++) {
1948 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1949 if (info->flags &~ fs->filter_flags) {
1950 info->sizeindex = -1;
1951 continue; /* we're filtering out this font */
1954 sprintf(sizetext, "%d", info->size);
1955 info->sizeindex = listindex;
1956 gtk_list_store_append(fs->size_model, &iter);
1957 gtk_list_store_set(fs->size_model, &iter,
1958 0, sizetext, 1, i, 2, info->size, -1);
1966 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
1967 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
1968 gtk_list_store_append(fs->size_model, &iter);
1969 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
1970 2, unifontsel_default_sizes[j], -1);
1977 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
1981 for (i = 0; i < fs->n_filter_buttons; i++) {
1982 int flagbit = GPOINTER_TO_INT(g_object_get_data
1983 (G_OBJECT(fs->filter_buttons[i]),
1985 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
1986 !!(fs->filter_flags & flagbit));
1990 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
1993 char *sizename = NULL;
1994 fontinfo *info = fs->selected;
1997 sizename = info->fontclass->scale_fontname
1998 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
1999 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2000 sizename ? sizename : info->realname,
2001 FALSE, FALSE, 0, 0);
2005 if (fs->preview_pixmap) {
2006 GdkGC *gc = gdk_gc_new(fs->preview_pixmap);
2007 gdk_gc_set_foreground(gc, &fs->preview_bg);
2008 gdk_draw_rectangle(fs->preview_pixmap, gc, 1, 0, 0,
2009 fs->preview_width, fs->preview_height);
2010 gdk_gc_set_foreground(gc, &fs->preview_fg);
2013 * The pangram used here is rather carefully
2014 * constructed: it contains a sequence of very narrow
2015 * letters (`jil') and a pair of adjacent very wide
2018 * If the user selects a proportional font, it will be
2019 * coerced into fixed-width character cells when used
2020 * in the actual terminal window. We therefore display
2021 * it the same way in the preview pane, so as to show
2022 * it the way it will actually be displayed - and we
2023 * deliberately pick a pangram which will show the
2024 * resulting miskerning at its worst.
2026 * We aren't trying to sell people these fonts; we're
2027 * trying to let them make an informed choice. Better
2028 * that they find out the problems with using
2029 * proportional fonts in terminal windows here than
2030 * that they go to the effort of selecting their font
2031 * and _then_ realise it was a mistake.
2033 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
2035 L"bankrupt jilted showmen quiz convex fogey",
2036 41, FALSE, FALSE, font->width);
2037 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
2038 0, font->ascent + font->height,
2039 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2040 41, FALSE, FALSE, font->width);
2042 * The ordering of punctuation here is also selected
2043 * with some specific aims in mind. I put ` and '
2044 * together because some software (and people) still
2045 * use them as matched quotes no matter what Unicode
2046 * might say on the matter, so people can quickly
2047 * check whether they look silly in a candidate font.
2048 * The sequence #_@ is there to let people judge the
2049 * suitability of the underscore as an effectively
2050 * alphabetic character (since that's how it's often
2051 * used in practice, at least by programmers).
2053 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
2054 0, font->ascent + font->height * 2,
2055 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2056 42, FALSE, FALSE, font->width);
2059 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2063 info->fontclass->destroy(font);
2068 static void unifontsel_select_font(unifontsel_internal *fs,
2069 fontinfo *info, int size, int leftlist,
2070 int size_is_explicit)
2074 GtkTreePath *treepath;
2077 fs->inhibit_response = TRUE;
2079 fs->selected = info;
2081 if (size_is_explicit)
2082 fs->intendedsize = size;
2084 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2087 * Find the index of this fontinfo in the selorder list.
2090 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2094 * Adjust the font selector flags and redo the font family
2095 * list box, if necessary.
2097 if (leftlist <= 0 &&
2098 (fs->filter_flags | info->flags) != fs->filter_flags) {
2099 fs->filter_flags |= info->flags;
2100 unifontsel_set_filter_buttons(fs);
2101 unifontsel_setup_familylist(fs);
2105 * Find the appropriate family name and select it in the list.
2107 assert(info->familyindex >= 0);
2108 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2109 gtk_tree_selection_select_path
2110 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2112 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2113 treepath, NULL, FALSE, 0.0, 0.0);
2114 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, treepath);
2115 gtk_tree_path_free(treepath);
2118 * Now set up the font style list.
2120 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2121 1, &minval, 2, &maxval, -1);
2123 unifontsel_setup_stylelist(fs, minval, maxval);
2126 * Find the appropriate style name and select it in the list.
2129 assert(info->styleindex >= 0);
2130 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2131 gtk_tree_selection_select_path
2132 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2134 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2135 treepath, NULL, FALSE, 0.0, 0.0);
2136 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2138 gtk_tree_path_free(treepath);
2141 * And set up the size list.
2143 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2144 1, &minval, 2, &maxval, -1);
2146 unifontsel_setup_sizelist(fs, minval, maxval);
2149 * Find the appropriate size, and select it in the list.
2152 assert(info->sizeindex >= 0);
2153 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2154 gtk_tree_selection_select_path
2155 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2157 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2158 treepath, NULL, FALSE, 0.0, 0.0);
2159 gtk_tree_path_free(treepath);
2163 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2164 if (unifontsel_default_sizes[j] == size) {
2165 treepath = gtk_tree_path_new_from_indices(j, -1);
2166 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2167 treepath, NULL, FALSE);
2168 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2169 treepath, NULL, FALSE, 0.0,
2171 gtk_tree_path_free(treepath);
2176 * And set up the font size text entry box.
2180 sprintf(sizetext, "%d", size);
2181 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2185 unifontsel_setup_sizelist(fs, 0, 0);
2186 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2190 * Grey out the font size edit box if we're not using a
2193 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2194 fs->selected->size == 0);
2195 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2197 unifontsel_draw_preview_text(fs);
2199 fs->inhibit_response = FALSE;
2202 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2204 unifontsel_internal *fs = (unifontsel_internal *)data;
2205 int newstate = gtk_toggle_button_get_active(tb);
2207 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2211 newflags = fs->filter_flags | flagbit;
2213 newflags = fs->filter_flags & ~flagbit;
2215 if (fs->filter_flags != newflags) {
2216 fs->filter_flags = newflags;
2217 unifontsel_setup_familylist(fs);
2221 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2222 const char *family, const char *charset,
2223 const char *style, const char *stylekey,
2224 int size, int flags,
2225 const struct unifont_vtable *fontclass)
2227 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2232 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2233 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2234 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2235 info = (fontinfo *)smalloc(totalsize);
2236 info->fontclass = fontclass;
2237 p = (char *)info + sizeof(fontinfo);
2239 strcpy(p, realfontname);
2246 info->family = NULL;
2252 info->charset = NULL;
2261 strcpy(p, stylekey);
2264 info->stylekey = NULL;
2265 assert(p - (char *)info <= totalsize);
2267 info->flags = flags;
2268 info->index = count234(fs->fonts_by_selorder);
2271 * It's just conceivable that a misbehaving font enumerator
2272 * might tell us about the same font real name more than once,
2273 * in which case we should silently drop the new one.
2275 if (add234(fs->fonts_by_realname, info) != info) {
2280 * However, we should never get a duplicate key in the
2281 * selorder tree, because the index field carefully
2282 * disambiguates otherwise identical records.
2284 add234(fs->fonts_by_selorder, info);
2287 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2290 fontinfo info2, *below, *above;
2294 * Copy the info structure. This doesn't copy its dynamic
2295 * string fields, but that's unimportant because all we're
2296 * going to do is to adjust the size field and use it in one
2300 info2.size = fs->intendedsize;
2303 * Search in the tree to find the fontinfo structure which
2304 * best approximates the size the user last requested.
2306 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2310 above = index234(fs->fonts_by_selorder, pos+1);
2313 * See if we've found it exactly, which is an easy special
2314 * case. If we have, it'll be in `below' and not `above',
2315 * because we did a REL234_LE rather than REL234_LT search.
2317 if (below && !fontinfo_selorder_compare(&info2, below))
2321 * Now we've either found two suitable fonts, one smaller and
2322 * one larger, or we're at one or other extreme end of the
2323 * scale. Find out which, by NULLing out either of below and
2324 * above if it differs from this one in any respect but size
2325 * (and the disambiguating index field). Bear in mind, also,
2326 * that either one might _already_ be NULL if we're at the
2327 * extreme ends of the font list.
2330 info2.size = below->size;
2331 info2.index = below->index;
2332 if (fontinfo_selorder_compare(&info2, below))
2336 info2.size = above->size;
2337 info2.index = above->index;
2338 if (fontinfo_selorder_compare(&info2, above))
2343 * Now return whichever of above and below is non-NULL, if
2344 * that's unambiguous.
2352 * And now we really do have to make a choice about whether to
2353 * round up or down. We'll do it by rounding to nearest,
2354 * breaking ties by rounding up.
2356 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2362 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2364 unifontsel_internal *fs = (unifontsel_internal *)data;
2365 GtkTreeModel *treemodel;
2366 GtkTreeIter treeiter;
2370 if (fs->inhibit_response) /* we made this change ourselves */
2373 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2376 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2377 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2378 info = update_for_intended_size(fs, info);
2380 return; /* _shouldn't_ happen unless font list is completely funted */
2382 fs->selsize = fs->intendedsize; /* font is scalable */
2383 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2387 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2389 unifontsel_internal *fs = (unifontsel_internal *)data;
2390 GtkTreeModel *treemodel;
2391 GtkTreeIter treeiter;
2395 if (fs->inhibit_response) /* we made this change ourselves */
2398 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2401 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2403 return; /* somehow a charset heading got clicked */
2404 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2405 info = update_for_intended_size(fs, info);
2407 return; /* _shouldn't_ happen unless font list is completely funted */
2409 fs->selsize = fs->intendedsize; /* font is scalable */
2410 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2414 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2416 unifontsel_internal *fs = (unifontsel_internal *)data;
2417 GtkTreeModel *treemodel;
2418 GtkTreeIter treeiter;
2422 if (fs->inhibit_response) /* we made this change ourselves */
2425 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2428 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2429 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2430 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2433 static void size_entry_changed(GtkEditable *ed, gpointer data)
2435 unifontsel_internal *fs = (unifontsel_internal *)data;
2439 if (fs->inhibit_response) /* we made this change ourselves */
2442 text = gtk_entry_get_text(GTK_ENTRY(ed));
2446 assert(fs->selected->size == 0);
2447 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2451 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2452 GtkTreeViewColumn *column, gpointer data)
2454 unifontsel_internal *fs = (unifontsel_internal *)data;
2456 int minval, newsize;
2457 fontinfo *info, *newinfo;
2460 if (fs->inhibit_response) /* we made this change ourselves */
2463 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2464 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2465 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2468 struct fontinfo_realname_find f;
2470 newname = info->fontclass->canonify_fontname
2471 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2473 f.realname = newname;
2475 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2479 return; /* font name not in our index */
2480 if (newinfo == info)
2481 return; /* didn't change under canonification => not an alias */
2482 unifontsel_select_font(fs, newinfo,
2483 newinfo->size ? newinfo->size : newsize,
2488 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2491 unifontsel_internal *fs = (unifontsel_internal *)data;
2493 if (fs->preview_pixmap) {
2494 gdk_draw_pixmap(gtk_widget_get_window(widget),
2495 (gtk_widget_get_style(widget)->fg_gc
2496 [gtk_widget_get_state(widget)]),
2498 event->area.x, event->area.y,
2499 event->area.x, event->area.y,
2500 event->area.width, event->area.height);
2505 static gint unifontsel_configure_area(GtkWidget *widget,
2506 GdkEventConfigure *event, gpointer data)
2508 unifontsel_internal *fs = (unifontsel_internal *)data;
2509 int ox, oy, nx, ny, x, y;
2512 * Enlarge the pixmap, but never shrink it.
2514 ox = fs->preview_width;
2515 oy = fs->preview_height;
2518 if (x > ox || y > oy) {
2519 if (fs->preview_pixmap)
2520 gdk_pixmap_unref(fs->preview_pixmap);
2522 nx = (x > ox ? x : ox);
2523 ny = (y > oy ? y : oy);
2524 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2526 fs->preview_width = nx;
2527 fs->preview_height = ny;
2529 unifontsel_draw_preview_text(fs);
2532 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
2537 unifontsel *unifontsel_new(const char *wintitle)
2539 unifontsel_internal *fs = snew(unifontsel_internal);
2540 GtkWidget *table, *label, *w, *ww, *scroll;
2541 GtkListStore *model;
2542 GtkTreeViewColumn *column;
2543 int lists_height, preview_height, font_width, style_width, size_width;
2546 fs->inhibit_response = FALSE;
2547 fs->selected = NULL;
2551 * Invent some magic size constants.
2554 label = gtk_label_new("Quite Long Font Name (Foundry)");
2555 gtk_widget_size_request(label, &req);
2556 font_width = req.width;
2557 lists_height = 14 * req.height;
2558 preview_height = 5 * req.height;
2559 gtk_label_set_text(GTK_LABEL(label), "Italic Extra Condensed");
2560 gtk_widget_size_request(label, &req);
2561 style_width = req.width;
2562 gtk_label_set_text(GTK_LABEL(label), "48000");
2563 gtk_widget_size_request(label, &req);
2564 size_width = req.width;
2565 g_object_ref_sink(G_OBJECT(label));
2566 #if GTK_CHECK_VERSION(2,10,0)
2567 g_object_unref(label);
2572 * Create the dialog box and initialise the user-visible
2573 * fields in the returned structure.
2575 fs->u.user_data = NULL;
2576 fs->u.window = GTK_WINDOW(gtk_dialog_new());
2577 gtk_window_set_title(fs->u.window, wintitle);
2578 fs->u.cancel_button = gtk_dialog_add_button
2579 (GTK_DIALOG(fs->u.window), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
2580 fs->u.ok_button = gtk_dialog_add_button
2581 (GTK_DIALOG(fs->u.window), GTK_STOCK_OK, GTK_RESPONSE_OK);
2582 gtk_widget_grab_default(fs->u.ok_button);
2585 * Now set up the internal fields, including in particular all
2586 * the controls that actually allow the user to select fonts.
2588 table = gtk_table_new(8, 3, FALSE);
2589 gtk_widget_show(table);
2590 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
2591 #if GTK_CHECK_VERSION(2,4,0)
2592 /* GtkAlignment seems to be the simplest way to put padding round things */
2593 w = gtk_alignment_new(0, 0, 1, 1);
2594 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2595 gtk_container_add(GTK_CONTAINER(w), table);
2600 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
2601 (GTK_DIALOG(fs->u.window))),
2604 label = gtk_label_new_with_mnemonic("_Font:");
2605 gtk_widget_show(label);
2606 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2607 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
2610 * The Font list box displays only a string, but additionally
2611 * stores two integers which give the limits within the
2612 * tree234 of the font entries covered by this list entry.
2614 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2615 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2616 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2617 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2619 column = gtk_tree_view_column_new_with_attributes
2620 ("Font", gtk_cell_renderer_text_new(),
2621 "text", 0, (char *)NULL);
2622 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2623 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2624 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2625 "changed", G_CALLBACK(family_changed), fs);
2626 g_signal_connect(G_OBJECT(w), "row-activated",
2627 G_CALLBACK(alias_resolve), fs);
2629 scroll = gtk_scrolled_window_new(NULL, NULL);
2630 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2632 gtk_container_add(GTK_CONTAINER(scroll), w);
2633 gtk_widget_show(scroll);
2634 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2635 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2636 gtk_widget_set_size_request(scroll, font_width, lists_height);
2637 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
2638 GTK_EXPAND | GTK_FILL, 0, 0);
2639 fs->family_model = model;
2640 fs->family_list = w;
2642 label = gtk_label_new_with_mnemonic("_Style:");
2643 gtk_widget_show(label);
2644 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2645 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
2648 * The Style list box can contain insensitive elements
2649 * (character set headings for server-side fonts), so we add
2650 * an extra column to the list store to hold that information.
2652 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
2654 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2655 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2656 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2658 column = gtk_tree_view_column_new_with_attributes
2659 ("Style", gtk_cell_renderer_text_new(),
2660 "text", 0, "sensitive", 3, (char *)NULL);
2661 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2662 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2663 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2664 "changed", G_CALLBACK(style_changed), fs);
2666 scroll = gtk_scrolled_window_new(NULL, NULL);
2667 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2669 gtk_container_add(GTK_CONTAINER(scroll), w);
2670 gtk_widget_show(scroll);
2671 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2672 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2673 gtk_widget_set_size_request(scroll, style_width, lists_height);
2674 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
2675 GTK_EXPAND | GTK_FILL, 0, 0);
2676 fs->style_model = model;
2679 label = gtk_label_new_with_mnemonic("Si_ze:");
2680 gtk_widget_show(label);
2681 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2682 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
2685 * The Size label attaches primarily to a text input box so
2686 * that the user can select a size of their choice. The list
2687 * of available sizes is secondary.
2689 fs->size_entry = w = gtk_entry_new();
2690 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2691 gtk_widget_set_size_request(w, size_width, -1);
2693 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
2694 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
2697 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2698 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2699 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2701 column = gtk_tree_view_column_new_with_attributes
2702 ("Size", gtk_cell_renderer_text_new(),
2703 "text", 0, (char *)NULL);
2704 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2705 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2706 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2707 "changed", G_CALLBACK(size_changed), fs);
2709 scroll = gtk_scrolled_window_new(NULL, NULL);
2710 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2712 gtk_container_add(GTK_CONTAINER(scroll), w);
2713 gtk_widget_show(scroll);
2714 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2715 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2716 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
2717 GTK_EXPAND | GTK_FILL, 0, 0);
2718 fs->size_model = model;
2724 fs->preview_area = gtk_drawing_area_new();
2725 fs->preview_pixmap = NULL;
2726 fs->preview_width = 0;
2727 fs->preview_height = 0;
2728 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
2729 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
2730 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
2731 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
2733 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
2735 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
2736 G_CALLBACK(unifontsel_expose_area), fs);
2737 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
2738 G_CALLBACK(unifontsel_configure_area), fs);
2739 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
2740 gtk_widget_show(fs->preview_area);
2741 ww = fs->preview_area;
2742 w = gtk_frame_new(NULL);
2743 gtk_container_add(GTK_CONTAINER(w), ww);
2745 #if GTK_CHECK_VERSION(2,4,0)
2747 /* GtkAlignment seems to be the simplest way to put padding round things */
2748 w = gtk_alignment_new(0, 0, 1, 1);
2749 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2750 gtk_container_add(GTK_CONTAINER(w), ww);
2754 w = gtk_frame_new("Preview of font");
2755 gtk_container_add(GTK_CONTAINER(w), ww);
2757 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
2758 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
2761 * We only provide the checkboxes for client- and server-side
2762 * fonts if we have the X11 back end available, because that's the
2763 * only situation in which more than one class of font is
2766 fs->n_filter_buttons = 0;
2767 #ifndef NOT_X_WINDOWS
2768 w = gtk_check_button_new_with_label("Show client-side fonts");
2769 g_object_set_data(G_OBJECT(w), "user-data",
2770 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
2771 g_signal_connect(G_OBJECT(w), "toggled",
2772 G_CALLBACK(unifontsel_button_toggled), fs);
2774 fs->filter_buttons[fs->n_filter_buttons++] = w;
2775 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
2776 w = gtk_check_button_new_with_label("Show server-side fonts");
2777 g_object_set_data(G_OBJECT(w), "user-data",
2778 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
2779 g_signal_connect(G_OBJECT(w), "toggled",
2780 G_CALLBACK(unifontsel_button_toggled), fs);
2782 fs->filter_buttons[fs->n_filter_buttons++] = w;
2783 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
2784 w = gtk_check_button_new_with_label("Show server-side font aliases");
2785 g_object_set_data(G_OBJECT(w), "user-data",
2786 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
2787 g_signal_connect(G_OBJECT(w), "toggled",
2788 G_CALLBACK(unifontsel_button_toggled), fs);
2790 fs->filter_buttons[fs->n_filter_buttons++] = w;
2791 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
2793 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
2794 g_object_set_data(G_OBJECT(w), "user-data",
2795 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
2796 g_signal_connect(G_OBJECT(w), "toggled",
2797 G_CALLBACK(unifontsel_button_toggled), fs);
2799 fs->filter_buttons[fs->n_filter_buttons++] = w;
2800 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
2802 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
2803 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
2804 FONTFLAG_SERVERALIAS;
2805 unifontsel_set_filter_buttons(fs);
2808 * Go and find all the font names, and set up our master font
2811 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
2812 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
2813 for (i = 0; i < lenof(unifont_types); i++)
2814 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
2815 unifontsel_add_entry, fs);
2818 * And set up the initial font names list.
2820 unifontsel_setup_familylist(fs);
2822 fs->selsize = fs->intendedsize = 13; /* random default */
2823 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2825 return (unifontsel *)fs;
2828 void unifontsel_destroy(unifontsel *fontsel)
2830 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2833 if (fs->preview_pixmap)
2834 gdk_pixmap_unref(fs->preview_pixmap);
2836 freetree234(fs->fonts_by_selorder);
2837 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
2839 freetree234(fs->fonts_by_realname);
2841 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
2845 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
2847 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2848 int i, start, end, size, flags;
2849 const char *fontname2 = NULL;
2853 * Provide a default if given an empty or null font name.
2855 if (!fontname || !*fontname)
2856 fontname = "server:fixed";
2859 * Call the canonify_fontname function.
2861 fontname = unifont_do_prefix(fontname, &start, &end);
2862 for (i = start; i < end; i++) {
2863 fontname2 = unifont_types[i]->canonify_fontname
2864 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
2869 return; /* font name not recognised */
2872 * Now look up the canonified font name in our index.
2875 struct fontinfo_realname_find f;
2876 f.realname = fontname2;
2878 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2882 * If we've found the font, and its size field is either
2883 * correct or zero (the latter indicating a scalable font),
2884 * then we're done. Otherwise, try looking up the original
2885 * font name instead.
2887 if (!info || (info->size != size && info->size != 0)) {
2888 struct fontinfo_realname_find f;
2889 f.realname = fontname;
2892 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2893 if (!info || info->size != size)
2894 return; /* font name not in our index */
2898 * Now we've got a fontinfo structure and a font size, so we
2899 * know everything we need to fill in all the fields in the
2902 unifontsel_select_font(fs, info, size, 0, TRUE);
2905 char *unifontsel_get_name(unifontsel *fontsel)
2907 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2913 if (fs->selected->size == 0) {
2914 name = fs->selected->fontclass->scale_fontname
2915 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
2917 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
2924 return dupcat(fs->selected->fontclass->prefix, ":",
2925 fs->selected->realname, NULL);
2928 #endif /* GTK_CHECK_VERSION(2,0,0) */