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 * - all the GDK font functions used in the x11font subclass are
34 * deprecated, so one day they may go away. When this happens -
35 * or before, if I'm feeling proactive - it oughtn't to be too
36 * difficult in principle to convert the whole thing to use
37 * actual Xlib font calls.
39 * - it would be nice if we could move the processing of
40 * underline and VT100 double width into this module, so that
41 * instead of using the ghastly pixmap-stretching technique
42 * everywhere we could tell the Pango backend to scale its
43 * fonts to double size properly and at full resolution.
44 * However, this requires me to learn how to make Pango stretch
45 * text to an arbitrary aspect ratio (for double-width only
46 * text, which perversely is harder than DW+DH), and right now
47 * I haven't the energy.
51 * Ad-hoc vtable mechanism to allow font structures to be
54 * Any instance of `unifont' used in the vtable functions will
55 * actually be the first element of a larger structure containing
56 * data specific to the subtype. This is permitted by the ISO C
57 * provision that one may safely cast between a pointer to a
58 * structure and a pointer to its first element.
61 #define FONTFLAG_CLIENTSIDE 0x0001
62 #define FONTFLAG_SERVERSIDE 0x0002
63 #define FONTFLAG_SERVERALIAS 0x0004
64 #define FONTFLAG_NONMONOSPACED 0x0008
66 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
68 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
69 const char *family, const char *charset,
70 const char *style, const char *stylekey,
72 const struct unifont_vtable *fontclass);
74 struct unifont_vtable {
76 * `Methods' of the `class'.
78 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
79 int shadowoffset, int shadowalways);
80 void (*destroy)(unifont *font);
81 void (*draw_text)(GdkDrawable *target, GdkGC *gc, unifont *font,
82 int x, int y, const char *string, int len, int wide,
83 int bold, int cellwidth);
84 void (*enum_fonts)(GtkWidget *widget,
85 fontsel_add_entry callback, void *callback_ctx);
86 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
87 int *flags, int resolve_aliases);
88 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
91 * `Static data members' of the `class'.
96 /* ----------------------------------------------------------------------
97 * GDK-based X11 font implementation.
100 static void x11font_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
101 int x, int y, const char *string, int len,
102 int wide, int bold, int cellwidth);
103 static unifont *x11font_create(GtkWidget *widget, const char *name,
105 int shadowoffset, int shadowalways);
106 static void x11font_destroy(unifont *font);
107 static void x11font_enum_fonts(GtkWidget *widget,
108 fontsel_add_entry callback, void *callback_ctx);
109 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
110 int *size, int *flags,
111 int resolve_aliases);
112 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
118 * Actual font objects. We store a number of these, for
119 * automatically guessed bold and wide variants.
121 * The parallel array `allocated' indicates whether we've
122 * tried to fetch a subfont already (thus distinguishing NULL
123 * because we haven't tried yet from NULL because we tried and
124 * failed, so that we don't keep trying and failing
130 * `sixteen_bit' is true iff the font object is indexed by
131 * values larger than a byte. That is, this flag tells us
132 * whether we use gdk_draw_text_wc() or gdk_draw_text().
136 * `variable' is true iff the font is non-fixed-pitch. This
137 * enables some code which takes greater care over character
138 * positioning during text drawing.
142 * Data passed in to unifont_create().
144 int wide, bold, shadowoffset, shadowalways;
147 static const struct unifont_vtable x11font_vtable = {
152 x11font_canonify_fontname,
153 x11font_scale_fontname,
157 char *x11_guess_derived_font_name(GdkFont *font, int bold, int wide)
159 XFontStruct *xfs = GDK_FONT_XFONT(font);
160 Display *disp = GDK_FONT_XDISPLAY(font);
161 Atom fontprop = XInternAtom(disp, "FONT", False);
163 if (XGetFontProperty(xfs, fontprop, &ret)) {
164 char *name = XGetAtomName(disp, (Atom)ret);
165 if (name && name[0] == '-') {
167 char *dupname, *extrafree = NULL, *ret;
171 p = q = dupname = dupstr(name); /* skip initial minus */
174 while (*p && nstr < lenof(strings)) {
177 strings[nstr++] = p+1;
182 if (nstr < lenof(strings))
183 return NULL; /* XLFD was malformed */
189 /* 4 is `wideness', which obviously may have changed. */
190 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
191 strings[4] = strings[5] = "*";
192 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
195 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
196 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
197 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
198 "-", strings[ 9], "-", strings[10], "-", strings[11],
199 "-", strings[12], NULL);
209 static int x11_font_width(GdkFont *font, int sixteen_bit)
215 return gdk_text_width(font, (const gchar *)&space, 2);
217 return gdk_char_width(font, '0');
221 static unifont *x11font_create(GtkWidget *widget, const char *name,
223 int shadowoffset, int shadowalways)
225 struct x11font *xfont;
229 Atom charset_registry, charset_encoding, spacing;
230 unsigned long registry_ret, encoding_ret, spacing_ret;
231 int pubcs, realcs, sixteen_bit, variable;
234 font = gdk_font_load(name);
238 xfs = GDK_FONT_XFONT(font);
239 disp = GDK_FONT_XDISPLAY(font);
241 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
242 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
244 pubcs = realcs = CS_NONE;
248 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
249 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
251 reg = XGetAtomName(disp, (Atom)registry_ret);
252 enc = XGetAtomName(disp, (Atom)encoding_ret);
254 char *encoding = dupcat(reg, "-", enc, NULL);
255 pubcs = realcs = charset_from_xenc(encoding);
258 * iso10646-1 is the only wide font encoding we
259 * support. In this case, we expect clients to give us
260 * UTF-8, which this module must internally convert
261 * into 16-bit Unicode.
263 if (!strcasecmp(encoding, "iso10646-1")) {
265 pubcs = realcs = CS_UTF8;
269 * Hack for X line-drawing characters: if the primary
270 * font is encoded as ISO-8859-1, and has valid glyphs
271 * in the first 32 char positions, it is assumed that
272 * those glyphs are the VT100 line-drawing character
275 * Actually, we'll hack even harder by only checking
276 * position 0x19 (vertical line, VT100 linedrawing
277 * `x'). Then we can check it easily by seeing if the
278 * ascent and descent differ.
280 if (pubcs == CS_ISO8859_1) {
281 int lb, rb, wid, asc, desc;
286 gdk_string_extents(font, text, &lb, &rb, &wid, &asc, &desc);
288 realcs = CS_ISO8859_1_X11;
295 spacing = XInternAtom(disp, "SPACING", False);
296 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
298 spc = XGetAtomName(disp, (Atom)spacing_ret);
300 if (spc && strchr("CcMm", spc[0]))
304 xfont = snew(struct x11font);
305 xfont->u.vt = &x11font_vtable;
306 xfont->u.width = x11_font_width(font, sixteen_bit);
307 xfont->u.ascent = font->ascent;
308 xfont->u.descent = font->descent;
309 xfont->u.height = xfont->u.ascent + xfont->u.descent;
310 xfont->u.public_charset = pubcs;
311 xfont->u.real_charset = realcs;
312 xfont->fonts[0] = font;
313 xfont->allocated[0] = TRUE;
314 xfont->sixteen_bit = sixteen_bit;
315 xfont->variable = variable;
318 xfont->shadowoffset = shadowoffset;
319 xfont->shadowalways = shadowalways;
321 for (i = 1; i < lenof(xfont->fonts); i++) {
322 xfont->fonts[i] = NULL;
323 xfont->allocated[i] = FALSE;
326 return (unifont *)xfont;
329 static void x11font_destroy(unifont *font)
331 struct x11font *xfont = (struct x11font *)font;
334 for (i = 0; i < lenof(xfont->fonts); i++)
336 gdk_font_unref(xfont->fonts[i]);
340 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
342 char *derived_name = x11_guess_derived_font_name
343 (xfont->fonts[0], sfid & 1, !!(sfid & 2));
344 xfont->fonts[sfid] = gdk_font_load(derived_name); /* may be NULL */
345 xfont->allocated[sfid] = TRUE;
349 static void x11font_really_draw_text(GdkDrawable *target, GdkFont *font,
350 GdkGC *gc, int x, int y,
351 const gchar *string, int clen, int nchars,
352 int shadowbold, int shadowoffset,
353 int fontvariable, int cellwidth)
355 int step = clen * nchars, nsteps = 1, centre = FALSE;
359 * In a variable-pitch font, we draw one character at a
360 * time, and centre it in the character cell.
367 while (nsteps-- > 0) {
370 X += (cellwidth - gdk_text_width(font, string, step)) / 2;
372 gdk_draw_text(target, font, gc, X, y, string, step);
374 gdk_draw_text(target, font, gc, X + shadowoffset, y, string, step);
381 static void x11font_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
382 int x, int y, const char *string, int len,
383 int wide, int bold, int cellwidth)
385 struct x11font *xfont = (struct x11font *)font;
387 int shadowbold = FALSE;
388 int mult = (wide ? 2 : 1);
394 * Decide which subfont we're using, and whether we have to
397 if (xfont->shadowalways && bold) {
401 sfid = 2 * wide + bold;
402 if (!xfont->allocated[sfid])
403 x11_alloc_subfont(xfont, sfid);
404 if (bold && !xfont->fonts[sfid]) {
407 sfid = 2 * wide + bold;
408 if (!xfont->allocated[sfid])
409 x11_alloc_subfont(xfont, sfid);
412 if (!xfont->fonts[sfid])
413 return; /* we've tried our best, but no luck */
415 if (xfont->sixteen_bit) {
417 * This X font has 16-bit character indices, which means
418 * we expect our string to have been passed in UTF-8.
422 int nchars, maxchars, i;
425 * Convert the input string to wide-character Unicode.
428 for (i = 0; i < len; i++)
429 if ((unsigned char)string[i] <= 0x7F ||
430 (unsigned char)string[i] >= 0xC0)
432 wcs = snewn(maxchars+1, wchar_t);
433 nchars = charset_to_unicode((char **)&string, &len, wcs, maxchars,
434 CS_UTF8, NULL, NULL, 0);
435 assert(nchars <= maxchars);
438 xcs = snewn(nchars, XChar2b);
439 for (i = 0; i < nchars; i++) {
440 xcs[i].byte1 = wcs[i] >> 8;
441 xcs[i].byte2 = wcs[i];
444 x11font_really_draw_text(target, xfont->fonts[sfid], gc, x, y,
445 (gchar *)xcs, 2, nchars,
446 shadowbold, xfont->shadowoffset,
447 xfont->variable, cellwidth * mult);
451 x11font_really_draw_text(target, xfont->fonts[sfid], gc, x, y,
453 shadowbold, xfont->shadowoffset,
454 xfont->variable, cellwidth * mult);
458 static void x11font_enum_fonts(GtkWidget *widget,
459 fontsel_add_entry callback, void *callback_ctx)
463 int nnames, i, max, tmpsize;
467 fontnames = XListFonts(GDK_DISPLAY(), "*", max, &nnames);
469 XFreeFontNames(fontnames);
477 for (i = 0; i < nnames; i++) {
478 if (fontnames[i][0] == '-') {
480 * Dismember an XLFD and convert it into the format
481 * we'll be using in the font selector.
483 char *components[14];
484 char *p, *font, *style, *stylekey, *charset;
485 int j, weightkey, slantkey, setwidthkey;
486 int thistmpsize, fontsize, flags;
488 thistmpsize = 4 * strlen(fontnames[i]) + 256;
489 if (tmpsize < thistmpsize) {
490 tmpsize = thistmpsize;
491 tmp = sresize(tmp, tmpsize, char);
493 strcpy(tmp, fontnames[i]);
496 for (j = 0; j < 14; j++) {
500 while (*p && *p != '-')
506 * Font name is made up of fields 0 and 1, in reverse
507 * order with parentheses. (This is what the GTK 1.2 X
508 * font selector does, and it seems to come out
509 * looking reasonably sensible.)
512 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
515 * Charset is made up of fields 12 and 13.
518 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
521 * Style is a mixture of quite a lot of the fields,
522 * with some strange formatting.
525 p += sprintf(p, "%s", components[2][0] ? components[2] :
527 if (!g_strcasecmp(components[3], "i"))
528 p += sprintf(p, " italic");
529 else if (!g_strcasecmp(components[3], "o"))
530 p += sprintf(p, " oblique");
531 else if (!g_strcasecmp(components[3], "ri"))
532 p += sprintf(p, " reverse italic");
533 else if (!g_strcasecmp(components[3], "ro"))
534 p += sprintf(p, " reverse oblique");
535 else if (!g_strcasecmp(components[3], "ot"))
536 p += sprintf(p, " other-slant");
537 if (components[4][0] && g_strcasecmp(components[4], "normal"))
538 p += sprintf(p, " %s", components[4]);
539 if (!g_strcasecmp(components[10], "m"))
540 p += sprintf(p, " [M]");
541 if (!g_strcasecmp(components[10], "c"))
542 p += sprintf(p, " [C]");
543 if (components[5][0])
544 p += sprintf(p, " %s", components[5]);
547 * Style key is the same stuff as above, but with a
548 * couple of transformations done on it to make it
549 * sort more sensibly.
553 if (!g_strcasecmp(components[2], "medium") ||
554 !g_strcasecmp(components[2], "regular") ||
555 !g_strcasecmp(components[2], "normal") ||
556 !g_strcasecmp(components[2], "book"))
558 else if (!g_strncasecmp(components[2], "demi", 4) ||
559 !g_strncasecmp(components[2], "semi", 4))
563 if (!g_strcasecmp(components[3], "r"))
565 else if (!g_strncasecmp(components[3], "r", 1))
569 if (!g_strcasecmp(components[4], "normal"))
574 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
576 (int)strlen(components[2]), components[2],
578 (int)strlen(components[3]), components[3],
580 (int)strlen(components[4]), components[4],
581 (int)strlen(components[10]), components[10],
582 (int)strlen(components[5]), components[5]);
584 assert(p - tmp < thistmpsize);
587 * Size is in pixels, for our application, so we
588 * derive it directly from the pixel size field,
591 fontsize = atoi(components[6]);
594 * Flags: we need to know whether this is a monospaced
595 * font, which we do by examining the spacing field
598 flags = FONTFLAG_SERVERSIDE;
599 if (!strchr("CcMm", components[10][0]))
600 flags |= FONTFLAG_NONMONOSPACED;
603 * Not sure why, but sometimes the X server will
604 * deliver dummy font types in which fontsize comes
605 * out as zero. Filter those out.
608 callback(callback_ctx, fontnames[i], font, charset,
609 style, stylekey, fontsize, flags, &x11font_vtable);
612 * This isn't an XLFD, so it must be an alias.
613 * Transmit it with mostly null data.
615 * It would be nice to work out if it's monospaced
616 * here, but at the moment I can't see that being
617 * anything but computationally hideous. Ah well.
619 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
620 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
623 XFreeFontNames(fontnames);
626 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
627 int *size, int *flags,
631 * When given an X11 font name to try to make sense of for a
632 * font selector, we must attempt to load it (to see if it
633 * exists), and then canonify it by extracting its FONT
634 * property, which should give its full XLFD even if what we
635 * originally had was a wildcard.
637 * However, we must carefully avoid canonifying font
638 * _aliases_, unless specifically asked to, because the font
639 * selector treats them as worthwhile in their own right.
641 GdkFont *font = gdk_font_load(name);
644 Atom fontprop, fontprop2;
648 return NULL; /* didn't make sense to us, sorry */
652 xfs = GDK_FONT_XFONT(font);
653 disp = GDK_FONT_XDISPLAY(font);
654 fontprop = XInternAtom(disp, "FONT", False);
656 if (XGetFontProperty(xfs, fontprop, &ret)) {
657 char *newname = XGetAtomName(disp, (Atom)ret);
659 unsigned long fsize = 12;
661 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
662 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
664 gdk_font_unref(font);
666 if (name[0] == '-' || resolve_aliases)
667 *flags = FONTFLAG_SERVERSIDE;
669 *flags = FONTFLAG_SERVERALIAS;
671 return dupstr(name[0] == '-' || resolve_aliases ?
677 gdk_font_unref(font);
678 return NULL; /* something went wrong */
681 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
684 return NULL; /* shan't */
687 #if GTK_CHECK_VERSION(2,0,0)
689 /* ----------------------------------------------------------------------
690 * Pango font implementation (for GTK 2 only).
693 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
694 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
697 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
698 int x, int y, const char *string, int len,
699 int wide, int bold, int cellwidth);
700 static unifont *pangofont_create(GtkWidget *widget, const char *name,
702 int shadowoffset, int shadowalways);
703 static void pangofont_destroy(unifont *font);
704 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
706 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
707 int *size, int *flags,
708 int resolve_aliases);
709 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
717 PangoFontDescription *desc;
720 * The containing widget.
724 * Data passed in to unifont_create().
726 int bold, shadowoffset, shadowalways;
729 static const struct unifont_vtable pangofont_vtable = {
733 pangofont_enum_fonts,
734 pangofont_canonify_fontname,
735 pangofont_scale_fontname,
740 * This function is used to rigorously validate a
741 * PangoFontDescription. Later versions of Pango have a nasty
742 * habit of accepting _any_ old string as input to
743 * pango_font_description_from_string and returning a font
744 * description which can actually be used to display text, even if
745 * they have to do it by falling back to their most default font.
746 * This is doubtless helpful in some situations, but not here,
747 * because we need to know if a Pango font string actually _makes
748 * sense_ in order to fall back to treating it as an X font name
749 * if it doesn't. So we check that the font family is actually one
750 * supported by Pango.
752 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
753 PangoFontDescription *desc)
755 #ifndef PANGO_PRE_1POINT6
758 PangoFontFamily **families;
759 int i, nfamilies, matched;
762 * Ask Pango for a list of font families, and iterate through
763 * them to see if one of them matches the family in the
764 * PangoFontDescription.
766 #ifndef PANGO_PRE_1POINT6
767 map = pango_context_get_font_map(ctx);
770 pango_font_map_list_families(map, &families, &nfamilies);
772 pango_context_list_families(ctx, &families, &nfamilies);
776 for (i = 0; i < nfamilies; i++) {
777 if (!g_strcasecmp(pango_font_family_get_name(families[i]),
778 pango_font_description_get_family(desc))) {
788 static unifont *pangofont_create(GtkWidget *widget, const char *name,
790 int shadowoffset, int shadowalways)
792 struct pangofont *pfont;
794 #ifndef PANGO_PRE_1POINT6
797 PangoFontDescription *desc;
799 PangoFontMetrics *metrics;
801 desc = pango_font_description_from_string(name);
804 ctx = gtk_widget_get_pango_context(widget);
806 pango_font_description_free(desc);
809 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
810 pango_font_description_free(desc);
813 #ifndef PANGO_PRE_1POINT6
814 map = pango_context_get_font_map(ctx);
816 pango_font_description_free(desc);
819 fset = pango_font_map_load_fontset(map, ctx, desc,
820 pango_context_get_language(ctx));
822 fset = pango_context_load_fontset(ctx, desc,
823 pango_context_get_language(ctx));
826 pango_font_description_free(desc);
829 metrics = pango_fontset_get_metrics(fset);
831 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
832 pango_font_description_free(desc);
833 g_object_unref(fset);
837 pfont = snew(struct pangofont);
838 pfont->u.vt = &pangofont_vtable;
840 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
841 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
842 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
843 pfont->u.height = pfont->u.ascent + pfont->u.descent;
844 /* The Pango API is hardwired to UTF-8 */
845 pfont->u.public_charset = CS_UTF8;
846 pfont->u.real_charset = CS_UTF8;
849 pfont->widget = widget;
851 pfont->shadowoffset = shadowoffset;
852 pfont->shadowalways = shadowalways;
854 pango_font_metrics_unref(metrics);
856 return (unifont *)pfont;
859 static void pangofont_destroy(unifont *font)
861 struct pangofont *pfont = (struct pangofont *)font;
862 pango_font_description_free(pfont->desc);
863 g_object_unref(pfont->fset);
867 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
868 int x, int y, const char *string, int len,
869 int wide, int bold, int cellwidth)
871 struct pangofont *pfont = (struct pangofont *)font;
874 int shadowbold = FALSE;
879 y -= pfont->u.ascent;
881 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
882 pango_layout_set_font_description(layout, pfont->desc);
883 if (bold > pfont->bold) {
884 if (pfont->shadowalways)
887 PangoFontDescription *desc2 =
888 pango_font_description_copy_static(pfont->desc);
889 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
890 pango_layout_set_font_description(layout, desc2);
898 * We want to display every character from this string in
899 * the centre of its own character cell. In the worst case,
900 * this requires a separate text-drawing call for each
901 * character; but in the common case where the font is
902 * properly fixed-width, we can draw many characters in one
903 * go which is much faster.
905 * This still isn't really ideal. If you look at what
906 * happens in the X protocol as a result of all of this, you
907 * find - naturally enough - that each call to
908 * gdk_draw_layout() generates a separate set of X RENDER
909 * operations involving creating a picture, setting a clip
910 * rectangle, doing some drawing and undoing the whole lot.
911 * In an ideal world, we should _always_ be able to turn the
912 * contents of this loop into a single RenderCompositeGlyphs
913 * operation which internally specifies inter-character
914 * deltas to get the spacing right, which would give us full
915 * speed _even_ in the worst case of a non-fixed-width font.
916 * However, Pango's architecture and documentation are so
917 * unhelpful that I have no idea how if at all to persuade
922 * Start by extracting a single UTF-8 character from the
927 (unsigned char)string[clen] >= 0x80 &&
928 (unsigned char)string[clen] < 0xC0)
933 * See if that character has the width we expect.
935 pango_layout_set_text(layout, string, clen);
936 pango_layout_get_pixel_extents(layout, NULL, &rect);
938 if (rect.width == cellwidth) {
940 * Try extracting more characters, for as long as they
945 clen++; /* skip UTF-8 introducer byte */
947 (unsigned char)string[clen] >= 0x80 &&
948 (unsigned char)string[clen] < 0xC0)
951 pango_layout_set_text(layout, string, clen);
952 pango_layout_get_pixel_extents(layout, NULL, &rect);
953 if (rect.width != n * cellwidth) {
961 pango_layout_set_text(layout, string, clen);
962 pango_layout_get_pixel_extents(layout, NULL, &rect);
963 gdk_draw_layout(target, gc, x + (n*cellwidth - rect.width)/2,
964 y + (pfont->u.height - rect.height)/2, layout);
966 gdk_draw_layout(target, gc, x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
967 y + (pfont->u.height - rect.height)/2, layout);
974 g_object_unref(layout);
978 * Dummy size value to be used when converting a
979 * PangoFontDescription of a scalable font to a string for
982 #define PANGO_DUMMY_SIZE 12
984 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
988 #ifndef PANGO_PRE_1POINT6
991 PangoFontFamily **families;
994 ctx = gtk_widget_get_pango_context(widget);
999 * Ask Pango for a list of font families, and iterate through
1002 #ifndef PANGO_PRE_1POINT6
1003 map = pango_context_get_font_map(ctx);
1006 pango_font_map_list_families(map, &families, &nfamilies);
1008 pango_context_list_families(ctx, &families, &nfamilies);
1010 for (i = 0; i < nfamilies; i++) {
1011 PangoFontFamily *family = families[i];
1012 const char *familyname;
1014 PangoFontFace **faces;
1018 * Set up our flags for this font family, and get the name
1021 flags = FONTFLAG_CLIENTSIDE;
1022 #ifndef PANGO_PRE_1POINT4
1024 * In very early versions of Pango, we can't tell
1025 * monospaced fonts from non-monospaced.
1027 if (!pango_font_family_is_monospace(family))
1028 flags |= FONTFLAG_NONMONOSPACED;
1030 familyname = pango_font_family_get_name(family);
1033 * Go through the available font faces in this family.
1035 pango_font_family_list_faces(family, &faces, &nfaces);
1036 for (j = 0; j < nfaces; j++) {
1037 PangoFontFace *face = faces[j];
1038 PangoFontDescription *desc;
1039 const char *facename;
1041 int k, nsizes, dummysize;
1044 * Get the face name string.
1046 facename = pango_font_face_get_face_name(face);
1049 * Set up a font description with what we've got so
1050 * far. We'll fill in the size field manually and then
1051 * call pango_font_description_to_string() to give the
1052 * full real name of the specific font.
1054 desc = pango_font_face_describe(face);
1057 * See if this font has a list of specific sizes.
1059 #ifndef PANGO_PRE_1POINT4
1060 pango_font_face_list_sizes(face, &sizes, &nsizes);
1063 * In early versions of Pango, that call wasn't
1064 * supported; we just have to assume everything is
1071 * Write a single entry with a dummy size.
1073 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1079 * If so, go through them one by one.
1081 for (k = 0; k < nsizes; k++) {
1085 pango_font_description_set_size(desc, sizes[k]);
1087 fullname = pango_font_description_to_string(desc);
1090 * Construct the sorting key for font styles.
1096 n = pango_font_description_get_weight(desc);
1097 /* Weight: normal, then lighter, then bolder */
1098 if (n <= PANGO_WEIGHT_NORMAL)
1099 n = PANGO_WEIGHT_NORMAL - n;
1100 p += sprintf(p, "%4d", n);
1102 n = pango_font_description_get_style(desc);
1103 p += sprintf(p, " %2d", n);
1105 n = pango_font_description_get_stretch(desc);
1106 /* Stretch: closer to normal sorts earlier */
1107 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1108 (n < PANGO_STRETCH_NORMAL);
1109 p += sprintf(p, " %2d", n);
1111 n = pango_font_description_get_variant(desc);
1112 p += sprintf(p, " %2d", n);
1117 * Got everything. Hand off to the callback.
1118 * (The charset string is NULL, because only
1119 * server-side X fonts use it.)
1121 callback(callback_ctx, fullname, familyname, NULL, facename,
1123 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1124 flags, &pangofont_vtable);
1128 if (sizes != &dummysize)
1131 pango_font_description_free(desc);
1138 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1139 int *size, int *flags,
1140 int resolve_aliases)
1143 * When given a Pango font name to try to make sense of for a
1144 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1145 * extract its original size (in pixels) into the `size' field.
1148 #ifndef PANGO_PRE_1POINT6
1151 PangoFontDescription *desc;
1153 PangoFontMetrics *metrics;
1154 char *newname, *retname;
1156 desc = pango_font_description_from_string(name);
1159 ctx = gtk_widget_get_pango_context(widget);
1161 pango_font_description_free(desc);
1164 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1165 pango_font_description_free(desc);
1168 #ifndef PANGO_PRE_1POINT6
1169 map = pango_context_get_font_map(ctx);
1171 pango_font_description_free(desc);
1174 fset = pango_font_map_load_fontset(map, ctx, desc,
1175 pango_context_get_language(ctx));
1177 fset = pango_context_load_fontset(ctx, desc,
1178 pango_context_get_language(ctx));
1181 pango_font_description_free(desc);
1184 metrics = pango_fontset_get_metrics(fset);
1186 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1187 pango_font_description_free(desc);
1188 g_object_unref(fset);
1192 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1193 *flags = FONTFLAG_CLIENTSIDE;
1194 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1195 newname = pango_font_description_to_string(desc);
1196 retname = dupstr(newname);
1199 pango_font_metrics_unref(metrics);
1200 pango_font_description_free(desc);
1201 g_object_unref(fset);
1206 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1209 PangoFontDescription *desc;
1210 char *newname, *retname;
1212 desc = pango_font_description_from_string(name);
1215 pango_font_description_set_size(desc, size * PANGO_SCALE);
1216 newname = pango_font_description_to_string(desc);
1217 retname = dupstr(newname);
1219 pango_font_description_free(desc);
1224 #endif /* GTK_CHECK_VERSION(2,0,0) */
1226 /* ----------------------------------------------------------------------
1227 * Outermost functions which do the vtable dispatch.
1231 * Complete list of font-type subclasses. Listed in preference
1232 * order for unifont_create(). (That is, in the extremely unlikely
1233 * event that the same font name is valid as both a Pango and an
1234 * X11 font, it will be interpreted as the former in the absence
1235 * of an explicit type-disambiguating prefix.)
1237 static const struct unifont_vtable *unifont_types[] = {
1238 #if GTK_CHECK_VERSION(2,0,0)
1245 * Function which takes a font name and processes the optional
1246 * scheme prefix. Returns the tail of the font name suitable for
1247 * passing to individual font scheme functions, and also provides
1248 * a subrange of the unifont_types[] array above.
1250 * The return values `start' and `end' denote a half-open interval
1251 * in unifont_types[]; that is, the correct way to iterate over
1254 * for (i = start; i < end; i++) {...}
1256 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1258 int colonpos = strcspn(name, ":");
1261 if (name[colonpos]) {
1263 * There's a colon prefix on the font name. Use it to work
1264 * out which subclass to use.
1266 for (i = 0; i < lenof(unifont_types); i++) {
1267 if (strlen(unifont_types[i]->prefix) == colonpos &&
1268 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1271 return name + colonpos + 1;
1275 * None matched, so return an empty scheme list to prevent
1276 * any scheme from being called at all.
1279 return name + colonpos + 1;
1282 * No colon prefix, so just use all the subclasses.
1285 *end = lenof(unifont_types);
1290 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1291 int bold, int shadowoffset, int shadowalways)
1295 name = unifont_do_prefix(name, &start, &end);
1297 for (i = start; i < end; i++) {
1298 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1299 shadowoffset, shadowalways);
1303 return NULL; /* font not found in any scheme */
1306 void unifont_destroy(unifont *font)
1308 font->vt->destroy(font);
1311 void unifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1312 int x, int y, const char *string, int len,
1313 int wide, int bold, int cellwidth)
1315 font->vt->draw_text(target, gc, font, x, y, string, len,
1316 wide, bold, cellwidth);
1319 #if GTK_CHECK_VERSION(2,0,0)
1321 /* ----------------------------------------------------------------------
1322 * Implementation of a unified font selector. Used on GTK 2 only;
1323 * for GTK 1 we still use the standard font selector.
1326 typedef struct fontinfo fontinfo;
1328 typedef struct unifontsel_internal {
1329 /* This must be the structure's first element, for cross-casting */
1331 GtkListStore *family_model, *style_model, *size_model;
1332 GtkWidget *family_list, *style_list, *size_entry, *size_list;
1333 GtkWidget *filter_buttons[4];
1334 GtkWidget *preview_area;
1335 GdkPixmap *preview_pixmap;
1336 int preview_width, preview_height;
1337 GdkColor preview_fg, preview_bg;
1339 tree234 *fonts_by_realname, *fonts_by_selorder;
1341 int selsize, intendedsize;
1342 int inhibit_response; /* inhibit callbacks when we change GUI controls */
1343 } unifontsel_internal;
1346 * The structure held in the tree234s. All the string members are
1347 * part of the same allocated area, so don't need freeing
1352 char *family, *charset, *style, *stylekey;
1355 * Fallback sorting key, to permit multiple identical entries
1356 * to exist in the selorder tree.
1360 * Indices mapping fontinfo structures to indices in the list
1361 * boxes. sizeindex is irrelevant if the font is scalable
1364 int familyindex, styleindex, sizeindex;
1366 * The class of font.
1368 const struct unifont_vtable *fontclass;
1371 struct fontinfo_realname_find {
1372 const char *realname;
1376 static int strnullcasecmp(const char *a, const char *b)
1381 * If exactly one of the inputs is NULL, it compares before
1384 if ((i = (!b) - (!a)) != 0)
1388 * NULL compares equal.
1394 * Otherwise, ordinary strcasecmp.
1396 return g_strcasecmp(a, b);
1399 static int fontinfo_realname_compare(void *av, void *bv)
1401 fontinfo *a = (fontinfo *)av;
1402 fontinfo *b = (fontinfo *)bv;
1405 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
1407 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1408 return ((a->flags & FONTFLAG_SORT_MASK) <
1409 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1413 static int fontinfo_realname_find(void *av, void *bv)
1415 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
1416 fontinfo *b = (fontinfo *)bv;
1419 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
1421 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1422 return ((a->flags & FONTFLAG_SORT_MASK) <
1423 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1427 static int fontinfo_selorder_compare(void *av, void *bv)
1429 fontinfo *a = (fontinfo *)av;
1430 fontinfo *b = (fontinfo *)bv;
1432 if ((i = strnullcasecmp(a->family, b->family)) != 0)
1435 * Font class comes immediately after family, so that fonts
1436 * from different classes with the same family
1438 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
1439 return ((a->flags & FONTFLAG_SORT_MASK) <
1440 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
1441 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
1443 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
1445 if ((i = strnullcasecmp(a->style, b->style)) != 0)
1447 if (a->size != b->size)
1448 return (a->size < b->size ? -1 : +1);
1449 if (a->index != b->index)
1450 return (a->index < b->index ? -1 : +1);
1454 static void unifontsel_deselect(unifontsel_internal *fs)
1456 fs->selected = NULL;
1457 gtk_list_store_clear(fs->style_model);
1458 gtk_list_store_clear(fs->size_model);
1459 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
1460 gtk_widget_set_sensitive(fs->size_entry, FALSE);
1463 static void unifontsel_setup_familylist(unifontsel_internal *fs)
1466 int i, listindex, minpos = -1, maxpos = -1;
1467 char *currfamily = NULL;
1471 gtk_list_store_clear(fs->family_model);
1475 * Search through the font tree for anything matching our
1476 * current filter criteria. When we find one, add its font
1477 * name to the list box.
1479 for (i = 0 ;; i++) {
1480 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1482 * info may be NULL if we've just run off the end of the
1483 * tree. We must still do a processing pass in that
1484 * situation, in case we had an unfinished font record in
1487 if (info && (info->flags &~ fs->filter_flags)) {
1488 info->familyindex = -1;
1489 continue; /* we're filtering out this font */
1491 if (!info || strnullcasecmp(currfamily, info->family) ||
1492 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
1494 * We've either finished a family, or started a new
1498 gtk_list_store_append(fs->family_model, &iter);
1499 gtk_list_store_set(fs->family_model, &iter,
1500 0, currfamily, 1, minpos, 2, maxpos+1, -1);
1505 currfamily = info->family;
1506 currflags = info->flags & FONTFLAG_SORT_MASK;
1510 break; /* now we're done */
1511 info->familyindex = listindex;
1516 * If we've just filtered out the previously selected font,
1517 * deselect it thoroughly.
1519 if (fs->selected && fs->selected->familyindex < 0)
1520 unifontsel_deselect(fs);
1523 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
1527 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
1528 char *currcs = NULL, *currstyle = NULL;
1531 gtk_list_store_clear(fs->style_model);
1536 * Search through the font tree for anything matching our
1537 * current filter criteria. When we find one, add its charset
1538 * and/or style name to the list box.
1540 for (i = start; i <= end; i++) {
1544 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1546 * info may be NULL if we've just run off the end of the
1547 * relevant data. We must still do a processing pass in
1548 * that situation, in case we had an unfinished font
1549 * record in progress.
1551 if (info && (info->flags &~ fs->filter_flags)) {
1552 info->styleindex = -1;
1553 continue; /* we're filtering out this font */
1555 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
1556 strnullcasecmp(currstyle, info->style)) {
1558 * We've either finished a style/charset, or started a
1563 gtk_list_store_append(fs->style_model, &iter);
1564 gtk_list_store_set(fs->style_model, &iter,
1565 0, currstyle, 1, minpos, 2, maxpos+1,
1571 if (info->charset && strnullcasecmp(currcs, info->charset)) {
1572 gtk_list_store_append(fs->style_model, &iter);
1573 gtk_list_store_set(fs->style_model, &iter,
1574 0, info->charset, 1, -1, 2, -1,
1578 currcs = info->charset;
1579 currstyle = info->style;
1583 break; /* now we're done */
1584 info->styleindex = listindex;
1589 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
1591 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
1599 gtk_list_store_clear(fs->size_model);
1603 * Search through the font tree for anything matching our
1604 * current filter criteria. When we find one, add its font
1605 * name to the list box.
1607 for (i = start; i < end; i++) {
1608 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1609 if (info->flags &~ fs->filter_flags) {
1610 info->sizeindex = -1;
1611 continue; /* we're filtering out this font */
1614 sprintf(sizetext, "%d", info->size);
1615 info->sizeindex = listindex;
1616 gtk_list_store_append(fs->size_model, &iter);
1617 gtk_list_store_set(fs->size_model, &iter,
1618 0, sizetext, 1, i, 2, info->size, -1);
1626 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
1627 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
1628 gtk_list_store_append(fs->size_model, &iter);
1629 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
1630 2, unifontsel_default_sizes[j], -1);
1637 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
1641 for (i = 0; i < lenof(fs->filter_buttons); i++) {
1642 int flagbit = GPOINTER_TO_INT(gtk_object_get_data
1643 (GTK_OBJECT(fs->filter_buttons[i]),
1645 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
1646 !!(fs->filter_flags & flagbit));
1650 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
1653 char *sizename = NULL;
1654 fontinfo *info = fs->selected;
1657 sizename = info->fontclass->scale_fontname
1658 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
1659 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
1660 sizename ? sizename : info->realname,
1661 FALSE, FALSE, 0, 0);
1665 if (fs->preview_pixmap) {
1666 GdkGC *gc = gdk_gc_new(fs->preview_pixmap);
1667 gdk_gc_set_foreground(gc, &fs->preview_bg);
1668 gdk_draw_rectangle(fs->preview_pixmap, gc, 1, 0, 0,
1669 fs->preview_width, fs->preview_height);
1670 gdk_gc_set_foreground(gc, &fs->preview_fg);
1673 * The pangram used here is rather carefully
1674 * constructed: it contains a sequence of very narrow
1675 * letters (`jil') and a pair of adjacent very wide
1678 * If the user selects a proportional font, it will be
1679 * coerced into fixed-width character cells when used
1680 * in the actual terminal window. We therefore display
1681 * it the same way in the preview pane, so as to show
1682 * it the way it will actually be displayed - and we
1683 * deliberately pick a pangram which will show the
1684 * resulting miskerning at its worst.
1686 * We aren't trying to sell people these fonts; we're
1687 * trying to let them make an informed choice. Better
1688 * that they find out the problems with using
1689 * proportional fonts in terminal windows here than
1690 * that they go to the effort of selecting their font
1691 * and _then_ realise it was a mistake.
1693 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
1695 "bankrupt jilted showmen quiz convex fogey",
1696 41, FALSE, FALSE, font->width);
1697 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
1698 0, font->ascent + font->height,
1699 "BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
1700 41, FALSE, FALSE, font->width);
1702 * The ordering of punctuation here is also selected
1703 * with some specific aims in mind. I put ` and '
1704 * together because some software (and people) still
1705 * use them as matched quotes no matter what Unicode
1706 * might say on the matter, so people can quickly
1707 * check whether they look silly in a candidate font.
1708 * The sequence #_@ is there to let people judge the
1709 * suitability of the underscore as an effectively
1710 * alphabetic character (since that's how it's often
1711 * used in practice, at least by programmers).
1713 info->fontclass->draw_text(fs->preview_pixmap, gc, font,
1714 0, font->ascent + font->height * 2,
1715 "0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
1716 42, FALSE, FALSE, font->width);
1719 gdk_window_invalidate_rect(fs->preview_area->window, NULL, FALSE);
1722 info->fontclass->destroy(font);
1727 static void unifontsel_select_font(unifontsel_internal *fs,
1728 fontinfo *info, int size, int leftlist,
1729 int size_is_explicit)
1733 GtkTreePath *treepath;
1736 fs->inhibit_response = TRUE;
1738 fs->selected = info;
1740 if (size_is_explicit)
1741 fs->intendedsize = size;
1743 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
1746 * Find the index of this fontinfo in the selorder list.
1749 findpos234(fs->fonts_by_selorder, info, NULL, &index);
1753 * Adjust the font selector flags and redo the font family
1754 * list box, if necessary.
1756 if (leftlist <= 0 &&
1757 (fs->filter_flags | info->flags) != fs->filter_flags) {
1758 fs->filter_flags |= info->flags;
1759 unifontsel_set_filter_buttons(fs);
1760 unifontsel_setup_familylist(fs);
1764 * Find the appropriate family name and select it in the list.
1766 assert(info->familyindex >= 0);
1767 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
1768 gtk_tree_selection_select_path
1769 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
1771 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
1772 treepath, NULL, FALSE, 0.0, 0.0);
1773 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, treepath);
1774 gtk_tree_path_free(treepath);
1777 * Now set up the font style list.
1779 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
1780 1, &minval, 2, &maxval, -1);
1782 unifontsel_setup_stylelist(fs, minval, maxval);
1785 * Find the appropriate style name and select it in the list.
1788 assert(info->styleindex >= 0);
1789 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
1790 gtk_tree_selection_select_path
1791 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
1793 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
1794 treepath, NULL, FALSE, 0.0, 0.0);
1795 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
1797 gtk_tree_path_free(treepath);
1800 * And set up the size list.
1802 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
1803 1, &minval, 2, &maxval, -1);
1805 unifontsel_setup_sizelist(fs, minval, maxval);
1808 * Find the appropriate size, and select it in the list.
1811 assert(info->sizeindex >= 0);
1812 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
1813 gtk_tree_selection_select_path
1814 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
1816 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
1817 treepath, NULL, FALSE, 0.0, 0.0);
1818 gtk_tree_path_free(treepath);
1822 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
1823 if (unifontsel_default_sizes[j] == size) {
1824 treepath = gtk_tree_path_new_from_indices(j, -1);
1825 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
1826 treepath, NULL, FALSE);
1827 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
1828 treepath, NULL, FALSE, 0.0,
1830 gtk_tree_path_free(treepath);
1835 * And set up the font size text entry box.
1839 sprintf(sizetext, "%d", size);
1840 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
1844 unifontsel_setup_sizelist(fs, 0, 0);
1845 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
1849 * Grey out the font size edit box if we're not using a
1852 gtk_entry_set_editable(GTK_ENTRY(fs->size_entry), fs->selected->size == 0);
1853 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
1855 unifontsel_draw_preview_text(fs);
1857 fs->inhibit_response = FALSE;
1860 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
1862 unifontsel_internal *fs = (unifontsel_internal *)data;
1863 int newstate = gtk_toggle_button_get_active(tb);
1865 int flagbit = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(tb),
1869 newflags = fs->filter_flags | flagbit;
1871 newflags = fs->filter_flags & ~flagbit;
1873 if (fs->filter_flags != newflags) {
1874 fs->filter_flags = newflags;
1875 unifontsel_setup_familylist(fs);
1879 static void unifontsel_add_entry(void *ctx, const char *realfontname,
1880 const char *family, const char *charset,
1881 const char *style, const char *stylekey,
1882 int size, int flags,
1883 const struct unifont_vtable *fontclass)
1885 unifontsel_internal *fs = (unifontsel_internal *)ctx;
1890 totalsize = sizeof(fontinfo) + strlen(realfontname) +
1891 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
1892 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
1893 info = (fontinfo *)smalloc(totalsize);
1894 info->fontclass = fontclass;
1895 p = (char *)info + sizeof(fontinfo);
1897 strcpy(p, realfontname);
1904 info->family = NULL;
1910 info->charset = NULL;
1919 strcpy(p, stylekey);
1922 info->stylekey = NULL;
1923 assert(p - (char *)info <= totalsize);
1925 info->flags = flags;
1926 info->index = count234(fs->fonts_by_selorder);
1929 * It's just conceivable that a misbehaving font enumerator
1930 * might tell us about the same font real name more than once,
1931 * in which case we should silently drop the new one.
1933 if (add234(fs->fonts_by_realname, info) != info) {
1938 * However, we should never get a duplicate key in the
1939 * selorder tree, because the index field carefully
1940 * disambiguates otherwise identical records.
1942 add234(fs->fonts_by_selorder, info);
1945 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
1948 fontinfo info2, *below, *above;
1952 * Copy the info structure. This doesn't copy its dynamic
1953 * string fields, but that's unimportant because all we're
1954 * going to do is to adjust the size field and use it in one
1958 info2.size = fs->intendedsize;
1961 * Search in the tree to find the fontinfo structure which
1962 * best approximates the size the user last requested.
1964 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
1966 above = index234(fs->fonts_by_selorder, pos+1);
1969 * See if we've found it exactly, which is an easy special
1970 * case. If we have, it'll be in `below' and not `above',
1971 * because we did a REL234_LE rather than REL234_LT search.
1973 if (!fontinfo_selorder_compare(&info2, below))
1977 * Now we've either found two suitable fonts, one smaller and
1978 * one larger, or we're at one or other extreme end of the
1979 * scale. Find out which, by NULLing out either of below and
1980 * above if it differs from this one in any respect but size
1981 * (and the disambiguating index field). Bear in mind, also,
1982 * that either one might _already_ be NULL if we're at the
1983 * extreme ends of the font list.
1986 info2.size = below->size;
1987 info2.index = below->index;
1988 if (fontinfo_selorder_compare(&info2, below))
1992 info2.size = above->size;
1993 info2.index = above->index;
1994 if (fontinfo_selorder_compare(&info2, above))
1999 * Now return whichever of above and below is non-NULL, if
2000 * that's unambiguous.
2008 * And now we really do have to make a choice about whether to
2009 * round up or down. We'll do it by rounding to nearest,
2010 * breaking ties by rounding up.
2012 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2018 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2020 unifontsel_internal *fs = (unifontsel_internal *)data;
2021 GtkTreeModel *treemodel;
2022 GtkTreeIter treeiter;
2026 if (fs->inhibit_response) /* we made this change ourselves */
2029 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2032 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2033 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2034 info = update_for_intended_size(fs, info);
2036 return; /* _shouldn't_ happen unless font list is completely funted */
2038 fs->selsize = fs->intendedsize; /* font is scalable */
2039 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2043 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2045 unifontsel_internal *fs = (unifontsel_internal *)data;
2046 GtkTreeModel *treemodel;
2047 GtkTreeIter treeiter;
2051 if (fs->inhibit_response) /* we made this change ourselves */
2054 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2057 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2059 return; /* somehow a charset heading got clicked */
2060 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2061 info = update_for_intended_size(fs, info);
2063 return; /* _shouldn't_ happen unless font list is completely funted */
2065 fs->selsize = fs->intendedsize; /* font is scalable */
2066 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2070 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2072 unifontsel_internal *fs = (unifontsel_internal *)data;
2073 GtkTreeModel *treemodel;
2074 GtkTreeIter treeiter;
2078 if (fs->inhibit_response) /* we made this change ourselves */
2081 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2084 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2085 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2086 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2089 static void size_entry_changed(GtkEditable *ed, gpointer data)
2091 unifontsel_internal *fs = (unifontsel_internal *)data;
2095 if (fs->inhibit_response) /* we made this change ourselves */
2098 text = gtk_entry_get_text(GTK_ENTRY(ed));
2102 assert(fs->selected->size == 0);
2103 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2107 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2108 GtkTreeViewColumn *column, gpointer data)
2110 unifontsel_internal *fs = (unifontsel_internal *)data;
2112 int minval, newsize;
2113 fontinfo *info, *newinfo;
2116 if (fs->inhibit_response) /* we made this change ourselves */
2119 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2120 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2121 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2124 struct fontinfo_realname_find f;
2126 newname = info->fontclass->canonify_fontname
2127 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2129 f.realname = newname;
2131 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2135 return; /* font name not in our index */
2136 if (newinfo == info)
2137 return; /* didn't change under canonification => not an alias */
2138 unifontsel_select_font(fs, newinfo,
2139 newinfo->size ? newinfo->size : newsize,
2144 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2147 unifontsel_internal *fs = (unifontsel_internal *)data;
2149 if (fs->preview_pixmap) {
2150 gdk_draw_pixmap(widget->window,
2151 widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
2153 event->area.x, event->area.y,
2154 event->area.x, event->area.y,
2155 event->area.width, event->area.height);
2160 static gint unifontsel_configure_area(GtkWidget *widget,
2161 GdkEventConfigure *event, gpointer data)
2163 unifontsel_internal *fs = (unifontsel_internal *)data;
2164 int ox, oy, nx, ny, x, y;
2167 * Enlarge the pixmap, but never shrink it.
2169 ox = fs->preview_width;
2170 oy = fs->preview_height;
2173 if (x > ox || y > oy) {
2174 if (fs->preview_pixmap)
2175 gdk_pixmap_unref(fs->preview_pixmap);
2177 nx = (x > ox ? x : ox);
2178 ny = (y > oy ? y : oy);
2179 fs->preview_pixmap = gdk_pixmap_new(widget->window, nx, ny, -1);
2180 fs->preview_width = nx;
2181 fs->preview_height = ny;
2183 unifontsel_draw_preview_text(fs);
2186 gdk_window_invalidate_rect(widget->window, NULL, FALSE);
2191 unifontsel *unifontsel_new(const char *wintitle)
2193 unifontsel_internal *fs = snew(unifontsel_internal);
2194 GtkWidget *table, *label, *w, *ww, *scroll;
2195 GtkListStore *model;
2196 GtkTreeViewColumn *column;
2197 int lists_height, preview_height, font_width, style_width, size_width;
2200 fs->inhibit_response = FALSE;
2201 fs->selected = NULL;
2205 * Invent some magic size constants.
2208 label = gtk_label_new("Quite Long Font Name (Foundry)");
2209 gtk_widget_size_request(label, &req);
2210 font_width = req.width;
2211 lists_height = 14 * req.height;
2212 preview_height = 5 * req.height;
2213 gtk_label_set_text(GTK_LABEL(label), "Italic Extra Condensed");
2214 gtk_widget_size_request(label, &req);
2215 style_width = req.width;
2216 gtk_label_set_text(GTK_LABEL(label), "48000");
2217 gtk_widget_size_request(label, &req);
2218 size_width = req.width;
2219 #if GTK_CHECK_VERSION(2,10,0)
2220 g_object_ref_sink(label);
2221 g_object_unref(label);
2223 gtk_object_sink(GTK_OBJECT(label));
2228 * Create the dialog box and initialise the user-visible
2229 * fields in the returned structure.
2231 fs->u.user_data = NULL;
2232 fs->u.window = GTK_WINDOW(gtk_dialog_new());
2233 gtk_window_set_title(fs->u.window, wintitle);
2234 fs->u.cancel_button = gtk_dialog_add_button
2235 (GTK_DIALOG(fs->u.window), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
2236 fs->u.ok_button = gtk_dialog_add_button
2237 (GTK_DIALOG(fs->u.window), GTK_STOCK_OK, GTK_RESPONSE_OK);
2238 gtk_widget_grab_default(fs->u.ok_button);
2241 * Now set up the internal fields, including in particular all
2242 * the controls that actually allow the user to select fonts.
2244 table = gtk_table_new(8, 3, FALSE);
2245 gtk_widget_show(table);
2246 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
2247 #if GTK_CHECK_VERSION(2,4,0)
2248 /* GtkAlignment seems to be the simplest way to put padding round things */
2249 w = gtk_alignment_new(0, 0, 1, 1);
2250 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2251 gtk_container_add(GTK_CONTAINER(w), table);
2256 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fs->u.window)->vbox),
2259 label = gtk_label_new_with_mnemonic("_Font:");
2260 gtk_widget_show(label);
2261 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2262 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
2265 * The Font list box displays only a string, but additionally
2266 * stores two integers which give the limits within the
2267 * tree234 of the font entries covered by this list entry.
2269 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2270 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2271 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2272 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2274 column = gtk_tree_view_column_new_with_attributes
2275 ("Font", gtk_cell_renderer_text_new(),
2276 "text", 0, (char *)NULL);
2277 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2278 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2279 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2280 "changed", G_CALLBACK(family_changed), fs);
2281 g_signal_connect(G_OBJECT(w), "row-activated",
2282 G_CALLBACK(alias_resolve), fs);
2284 scroll = gtk_scrolled_window_new(NULL, NULL);
2285 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2287 gtk_container_add(GTK_CONTAINER(scroll), w);
2288 gtk_widget_show(scroll);
2289 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2290 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2291 gtk_widget_set_size_request(scroll, font_width, lists_height);
2292 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
2293 GTK_EXPAND | GTK_FILL, 0, 0);
2294 fs->family_model = model;
2295 fs->family_list = w;
2297 label = gtk_label_new_with_mnemonic("_Style:");
2298 gtk_widget_show(label);
2299 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2300 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
2303 * The Style list box can contain insensitive elements
2304 * (character set headings for server-side fonts), so we add
2305 * an extra column to the list store to hold that information.
2307 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
2309 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2310 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2311 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2313 column = gtk_tree_view_column_new_with_attributes
2314 ("Style", gtk_cell_renderer_text_new(),
2315 "text", 0, "sensitive", 3, (char *)NULL);
2316 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2317 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2318 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2319 "changed", G_CALLBACK(style_changed), fs);
2321 scroll = gtk_scrolled_window_new(NULL, NULL);
2322 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2324 gtk_container_add(GTK_CONTAINER(scroll), w);
2325 gtk_widget_show(scroll);
2326 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2327 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2328 gtk_widget_set_size_request(scroll, style_width, lists_height);
2329 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
2330 GTK_EXPAND | GTK_FILL, 0, 0);
2331 fs->style_model = model;
2334 label = gtk_label_new_with_mnemonic("Si_ze:");
2335 gtk_widget_show(label);
2336 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2337 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
2340 * The Size label attaches primarily to a text input box so
2341 * that the user can select a size of their choice. The list
2342 * of available sizes is secondary.
2344 fs->size_entry = w = gtk_entry_new();
2345 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2346 gtk_widget_set_size_request(w, size_width, -1);
2348 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
2349 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
2352 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2353 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2354 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2356 column = gtk_tree_view_column_new_with_attributes
2357 ("Size", gtk_cell_renderer_text_new(),
2358 "text", 0, (char *)NULL);
2359 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2360 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2361 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2362 "changed", G_CALLBACK(size_changed), fs);
2364 scroll = gtk_scrolled_window_new(NULL, NULL);
2365 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2367 gtk_container_add(GTK_CONTAINER(scroll), w);
2368 gtk_widget_show(scroll);
2369 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2370 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2371 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
2372 GTK_EXPAND | GTK_FILL, 0, 0);
2373 fs->size_model = model;
2379 fs->preview_area = gtk_drawing_area_new();
2380 fs->preview_pixmap = NULL;
2381 fs->preview_width = 0;
2382 fs->preview_height = 0;
2383 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
2384 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
2385 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
2386 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
2388 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
2390 gtk_signal_connect(GTK_OBJECT(fs->preview_area), "expose_event",
2391 GTK_SIGNAL_FUNC(unifontsel_expose_area), fs);
2392 gtk_signal_connect(GTK_OBJECT(fs->preview_area), "configure_event",
2393 GTK_SIGNAL_FUNC(unifontsel_configure_area), fs);
2394 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
2395 gtk_widget_show(fs->preview_area);
2396 ww = fs->preview_area;
2397 w = gtk_frame_new(NULL);
2398 gtk_container_add(GTK_CONTAINER(w), ww);
2400 #if GTK_CHECK_VERSION(2,4,0)
2402 /* GtkAlignment seems to be the simplest way to put padding round things */
2403 w = gtk_alignment_new(0, 0, 1, 1);
2404 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2405 gtk_container_add(GTK_CONTAINER(w), ww);
2409 w = gtk_frame_new("Preview of font");
2410 gtk_container_add(GTK_CONTAINER(w), ww);
2412 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
2413 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
2416 w = gtk_check_button_new_with_label("Show client-side fonts");
2417 gtk_object_set_data(GTK_OBJECT(w), "user-data",
2418 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
2419 gtk_signal_connect(GTK_OBJECT(w), "toggled",
2420 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
2422 fs->filter_buttons[i++] = w;
2423 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
2424 w = gtk_check_button_new_with_label("Show server-side fonts");
2425 gtk_object_set_data(GTK_OBJECT(w), "user-data",
2426 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
2427 gtk_signal_connect(GTK_OBJECT(w), "toggled",
2428 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
2430 fs->filter_buttons[i++] = w;
2431 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
2432 w = gtk_check_button_new_with_label("Show server-side font aliases");
2433 gtk_object_set_data(GTK_OBJECT(w), "user-data",
2434 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
2435 gtk_signal_connect(GTK_OBJECT(w), "toggled",
2436 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
2438 fs->filter_buttons[i++] = w;
2439 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
2440 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
2441 gtk_object_set_data(GTK_OBJECT(w), "user-data",
2442 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
2443 gtk_signal_connect(GTK_OBJECT(w), "toggled",
2444 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
2446 fs->filter_buttons[i++] = w;
2447 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
2449 assert(i == lenof(fs->filter_buttons));
2450 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
2451 FONTFLAG_SERVERALIAS;
2452 unifontsel_set_filter_buttons(fs);
2455 * Go and find all the font names, and set up our master font
2458 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
2459 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
2460 for (i = 0; i < lenof(unifont_types); i++)
2461 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
2462 unifontsel_add_entry, fs);
2465 * And set up the initial font names list.
2467 unifontsel_setup_familylist(fs);
2469 fs->selsize = fs->intendedsize = 13; /* random default */
2470 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2472 return (unifontsel *)fs;
2475 void unifontsel_destroy(unifontsel *fontsel)
2477 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2480 if (fs->preview_pixmap)
2481 gdk_pixmap_unref(fs->preview_pixmap);
2483 freetree234(fs->fonts_by_selorder);
2484 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
2486 freetree234(fs->fonts_by_realname);
2488 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
2492 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
2494 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2495 int i, start, end, size, flags;
2496 const char *fontname2 = NULL;
2500 * Provide a default if given an empty or null font name.
2502 if (!fontname || !*fontname)
2503 fontname = "server:fixed";
2506 * Call the canonify_fontname function.
2508 fontname = unifont_do_prefix(fontname, &start, &end);
2509 for (i = start; i < end; i++) {
2510 fontname2 = unifont_types[i]->canonify_fontname
2511 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
2516 return; /* font name not recognised */
2519 * Now look up the canonified font name in our index.
2522 struct fontinfo_realname_find f;
2523 f.realname = fontname2;
2525 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2529 * If we've found the font, and its size field is either
2530 * correct or zero (the latter indicating a scalable font),
2531 * then we're done. Otherwise, try looking up the original
2532 * font name instead.
2534 if (!info || (info->size != size && info->size != 0)) {
2535 struct fontinfo_realname_find f;
2536 f.realname = fontname;
2539 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2540 if (!info || info->size != size)
2541 return; /* font name not in our index */
2545 * Now we've got a fontinfo structure and a font size, so we
2546 * know everything we need to fill in all the fields in the
2549 unifontsel_select_font(fs, info, size, 0, TRUE);
2552 char *unifontsel_get_name(unifontsel *fontsel)
2554 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
2560 if (fs->selected->size == 0) {
2561 name = fs->selected->fontclass->scale_fontname
2562 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
2564 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
2571 return dupcat(fs->selected->fontclass->prefix, ":",
2572 fs->selected->realname, NULL);
2575 #endif /* GTK_CHECK_VERSION(2,0,0) */