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>
30 * - implement the preview pane
32 * - extend the font style language for X11 fonts so that we
33 * never get unexplained double size elements? Or, at least, so
34 * that _my_ font collection never produces them; that'd be a
37 * - decide what _should_ happen about font aliases. Should we
38 * resolve them as soon as they're clicked? Or be able to
39 * resolve them on demand, er, somehow? Or resolve them on exit
40 * from the function? Or what? If we resolve on demand, should
41 * we stop canonifying them on input, on the basis that we'd
42 * prefer to let the user _tell_ us when to canonify them?
44 * - think about points versus pixels, harder than I already have
46 * - work out why the list boxes don't go all the way to the RHS
49 * - develop a sensible sorting order for the font styles -
50 * Regular / Roman / non-bold-or-italic should come at the top!
52 * - big testing and shakedown!
58 * - all the GDK font functions used in the x11font subclass are
59 * deprecated, so one day they may go away. When this happens -
60 * or before, if I'm feeling proactive - it oughtn't to be too
61 * difficult in principle to convert the whole thing to use
62 * actual Xlib font calls.
64 * - it would be nice if we could move the processing of
65 * underline and VT100 double width into this module, so that
66 * instead of using the ghastly pixmap-stretching technique
67 * everywhere we could tell the Pango backend to scale its
68 * fonts to double size properly and at full resolution.
69 * However, this requires me to learn how to make Pango stretch
70 * text to an arbitrary aspect ratio (for double-width only
71 * text, which perversely is harder than DW+DH), and right now
72 * I haven't the energy.
76 * Ad-hoc vtable mechanism to allow font structures to be
79 * Any instance of `unifont' used in the vtable functions will
80 * actually be the first element of a larger structure containing
81 * data specific to the subtype. This is permitted by the ISO C
82 * provision that one may safely cast between a pointer to a
83 * structure and a pointer to its first element.
86 #define FONTFLAG_CLIENTSIDE 0x0001
87 #define FONTFLAG_SERVERSIDE 0x0002
88 #define FONTFLAG_SERVERALIAS 0x0004
89 #define FONTFLAG_NONMONOSPACED 0x0008
91 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
92 const char *family, const char *charset,
93 const char *style, int size, int flags,
94 const struct unifont_vtable *fontclass);
96 struct unifont_vtable {
98 * `Methods' of the `class'.
100 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
101 int shadowoffset, int shadowalways);
102 void (*destroy)(unifont *font);
103 void (*draw_text)(GdkDrawable *target, GdkGC *gc, unifont *font,
104 int x, int y, const char *string, int len, int wide,
105 int bold, int cellwidth);
106 void (*enum_fonts)(GtkWidget *widget,
107 fontsel_add_entry callback, void *callback_ctx);
108 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size);
109 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
112 * `Static data members' of the `class'.
117 /* ----------------------------------------------------------------------
118 * GDK-based X11 font implementation.
121 static void x11font_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
122 int x, int y, const char *string, int len,
123 int wide, int bold, int cellwidth);
124 static unifont *x11font_create(GtkWidget *widget, const char *name,
126 int shadowoffset, int shadowalways);
127 static void x11font_destroy(unifont *font);
128 static void x11font_enum_fonts(GtkWidget *widget,
129 fontsel_add_entry callback, void *callback_ctx);
130 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
132 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
138 * Actual font objects. We store a number of these, for
139 * automatically guessed bold and wide variants.
141 * The parallel array `allocated' indicates whether we've
142 * tried to fetch a subfont already (thus distinguishing NULL
143 * because we haven't tried yet from NULL because we tried and
144 * failed, so that we don't keep trying and failing
150 * `sixteen_bit' is true iff the font object is indexed by
151 * values larger than a byte. That is, this flag tells us
152 * whether we use gdk_draw_text_wc() or gdk_draw_text().
156 * Data passed in to unifont_create().
158 int wide, bold, shadowoffset, shadowalways;
161 static const struct unifont_vtable x11font_vtable = {
166 x11font_canonify_fontname,
167 x11font_scale_fontname,
171 char *x11_guess_derived_font_name(GdkFont *font, int bold, int wide)
173 XFontStruct *xfs = GDK_FONT_XFONT(font);
174 Display *disp = GDK_FONT_XDISPLAY(font);
175 Atom fontprop = XInternAtom(disp, "FONT", False);
177 if (XGetFontProperty(xfs, fontprop, &ret)) {
178 char *name = XGetAtomName(disp, (Atom)ret);
179 if (name && name[0] == '-') {
181 char *dupname, *extrafree = NULL, *ret;
185 p = q = dupname = dupstr(name); /* skip initial minus */
188 while (*p && nstr < lenof(strings)) {
191 strings[nstr++] = p+1;
196 if (nstr < lenof(strings))
197 return NULL; /* XLFD was malformed */
203 /* 4 is `wideness', which obviously may have changed. */
204 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
205 strings[4] = strings[5] = "*";
206 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
209 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
210 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
211 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
212 "-", strings[ 9], "-", strings[10], "-", strings[11],
213 "-", strings[12], NULL);
223 static int x11_font_width(GdkFont *font, int sixteen_bit)
229 return gdk_text_width(font, (const gchar *)&space, 2);
231 return gdk_char_width(font, ' ');
235 static unifont *x11font_create(GtkWidget *widget, const char *name,
237 int shadowoffset, int shadowalways)
239 struct x11font *xfont;
243 Atom charset_registry, charset_encoding;
244 unsigned long registry_ret, encoding_ret;
245 int pubcs, realcs, sixteen_bit;
248 font = gdk_font_load(name);
252 xfs = GDK_FONT_XFONT(font);
253 disp = GDK_FONT_XDISPLAY(font);
255 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
256 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
258 pubcs = realcs = CS_NONE;
261 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
262 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
264 reg = XGetAtomName(disp, (Atom)registry_ret);
265 enc = XGetAtomName(disp, (Atom)encoding_ret);
267 char *encoding = dupcat(reg, "-", enc, NULL);
268 pubcs = realcs = charset_from_xenc(encoding);
271 * iso10646-1 is the only wide font encoding we
272 * support. In this case, we expect clients to give us
273 * UTF-8, which this module must internally convert
274 * into 16-bit Unicode.
276 if (!strcasecmp(encoding, "iso10646-1")) {
278 pubcs = realcs = CS_UTF8;
282 * Hack for X line-drawing characters: if the primary
283 * font is encoded as ISO-8859-1, and has valid glyphs
284 * in the first 32 char positions, it is assumed that
285 * those glyphs are the VT100 line-drawing character
288 * Actually, we'll hack even harder by only checking
289 * position 0x19 (vertical line, VT100 linedrawing
290 * `x'). Then we can check it easily by seeing if the
291 * ascent and descent differ.
293 if (pubcs == CS_ISO8859_1) {
294 int lb, rb, wid, asc, desc;
299 gdk_string_extents(font, text, &lb, &rb, &wid, &asc, &desc);
301 realcs = CS_ISO8859_1_X11;
308 xfont = snew(struct x11font);
309 xfont->u.vt = &x11font_vtable;
310 xfont->u.width = x11_font_width(font, sixteen_bit);
311 xfont->u.ascent = font->ascent;
312 xfont->u.descent = font->descent;
313 xfont->u.height = xfont->u.ascent + xfont->u.descent;
314 xfont->u.public_charset = pubcs;
315 xfont->u.real_charset = realcs;
316 xfont->fonts[0] = font;
317 xfont->allocated[0] = TRUE;
318 xfont->sixteen_bit = sixteen_bit;
321 xfont->shadowoffset = shadowoffset;
322 xfont->shadowalways = shadowalways;
324 for (i = 1; i < lenof(xfont->fonts); i++) {
325 xfont->fonts[i] = NULL;
326 xfont->allocated[i] = FALSE;
329 return (unifont *)xfont;
332 static void x11font_destroy(unifont *font)
334 struct x11font *xfont = (struct x11font *)font;
337 for (i = 0; i < lenof(xfont->fonts); i++)
339 gdk_font_unref(xfont->fonts[i]);
343 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
345 char *derived_name = x11_guess_derived_font_name
346 (xfont->fonts[0], sfid & 1, !!(sfid & 2));
347 xfont->fonts[sfid] = gdk_font_load(derived_name); /* may be NULL */
348 xfont->allocated[sfid] = TRUE;
352 static void x11font_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
353 int x, int y, const char *string, int len,
354 int wide, int bold, int cellwidth)
356 struct x11font *xfont = (struct x11font *)font;
358 int shadowbold = FALSE;
364 * Decide which subfont we're using, and whether we have to
367 if (xfont->shadowalways && bold) {
371 sfid = 2 * wide + bold;
372 if (!xfont->allocated[sfid])
373 x11_alloc_subfont(xfont, sfid);
374 if (bold && !xfont->fonts[sfid]) {
377 sfid = 2 * wide + bold;
378 if (!xfont->allocated[sfid])
379 x11_alloc_subfont(xfont, sfid);
382 if (!xfont->fonts[sfid])
383 return; /* we've tried our best, but no luck */
385 if (xfont->sixteen_bit) {
387 * This X font has 16-bit character indices, which means
388 * we expect our string to have been passed in UTF-8.
392 int nchars, maxchars, i;
395 * Convert the input string to wide-character Unicode.
398 for (i = 0; i < len; i++)
399 if ((unsigned char)string[i] <= 0x7F ||
400 (unsigned char)string[i] >= 0xC0)
402 wcs = snewn(maxchars+1, wchar_t);
403 nchars = charset_to_unicode((char **)&string, &len, wcs, maxchars,
404 CS_UTF8, NULL, NULL, 0);
405 assert(nchars <= maxchars);
408 xcs = snewn(nchars, XChar2b);
409 for (i = 0; i < nchars; i++) {
410 xcs[i].byte1 = wcs[i] >> 8;
411 xcs[i].byte2 = wcs[i];
414 gdk_draw_text(target, xfont->fonts[sfid], gc,
415 x, y, (gchar *)xcs, nchars*2);
417 gdk_draw_text(target, xfont->fonts[sfid], gc,
418 x + xfont->shadowoffset, y, (gchar *)xcs, nchars*2);
422 gdk_draw_text(target, xfont->fonts[sfid], gc, x, y, string, len);
424 gdk_draw_text(target, xfont->fonts[sfid], gc,
425 x + xfont->shadowoffset, y, string, len);
429 static void x11font_enum_fonts(GtkWidget *widget,
430 fontsel_add_entry callback, void *callback_ctx)
434 int nnames, i, max, tmpsize;
438 fontnames = XListFonts(GDK_DISPLAY(), "*", max, &nnames);
440 XFreeFontNames(fontnames);
448 for (i = 0; i < nnames; i++) {
449 if (fontnames[i][0] == '-') {
451 * Dismember an XLFD and convert it into the format
452 * we'll be using in the font selector.
454 char *components[14];
455 char *p, *font, *style, *charset;
456 int j, thistmpsize, fontsize, flags;
458 thistmpsize = 3 * strlen(fontnames[i]) + 256;
459 if (tmpsize < thistmpsize) {
460 tmpsize = thistmpsize;
461 tmp = sresize(tmp, tmpsize, char);
463 strcpy(tmp, fontnames[i]);
466 for (j = 0; j < 14; j++) {
470 while (*p && *p != '-')
476 * Font name is made up of fields 0 and 1, in reverse
477 * order with parentheses. (This is what the GTK 1.2 X
478 * font selector does, and it seems to come out
479 * looking reasonably sensible.)
482 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
485 * Charset is made up of fields 12 and 13.
488 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
491 * Style is a mixture of the weight, slant, set_width
492 * and spacing fields (respectively 2, 3, 4 and 10)
493 * with some strange formatting. (Again, cribbed
494 * entirely from the GTK 1.2 font selector.)
497 p += sprintf(p, "%s", components[2][0] ? components[2] :
499 if (!g_strcasecmp(components[3], "i"))
500 p += sprintf(p, " italic");
501 else if (!g_strcasecmp(components[3], "o"))
502 p += sprintf(p, " oblique");
503 else if (!g_strcasecmp(components[3], "ri"))
504 p += sprintf(p, " reverse italic");
505 else if (!g_strcasecmp(components[3], "ro"))
506 p += sprintf(p, " reverse oblique");
507 else if (!g_strcasecmp(components[3], "ot"))
508 p += sprintf(p, " other-slant");
509 if (components[4][0] && g_strcasecmp(components[4], "normal"))
510 p += sprintf(p, " %s", components[4]);
511 if (!g_strcasecmp(components[10], "m"))
512 p += sprintf(p, " [M]");
513 if (!g_strcasecmp(components[10], "c"))
514 p += sprintf(p, " [C]");
517 * Size is in pixels, for our application, so we
518 * derive it directly from the pixel size field,
521 fontsize = atoi(components[6]);
524 * Flags: we need to know whether this is a monospaced
525 * font, which we do by examining the spacing field
528 flags = FONTFLAG_SERVERSIDE;
529 if (!strchr("CcMm", components[10][0]))
530 flags |= FONTFLAG_NONMONOSPACED;
533 * Not sure why, but sometimes the X server will
534 * deliver dummy font types in which fontsize comes
535 * out as zero. Filter those out.
538 callback(callback_ctx, fontnames[i], font, charset,
539 style, fontsize, flags, &x11font_vtable);
542 * This isn't an XLFD, so it must be an alias.
543 * Transmit it with mostly null data.
545 * It would be nice to work out if it's monospaced
546 * here, but at the moment I can't see that being
547 * anything but computationally hideous. Ah well.
549 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
550 NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
553 XFreeFontNames(fontnames);
556 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
560 * When given an X11 font name to try to make sense of for a
561 * font selector, we must attempt to load it (to see if it
562 * exists), and then canonify it by extracting its FONT
563 * property, which should give its full XLFD even if what we
564 * originally had was an alias.
566 GdkFont *font = gdk_font_load(name);
569 Atom fontprop, fontprop2;
573 return NULL; /* didn't make sense to us, sorry */
577 xfs = GDK_FONT_XFONT(font);
578 disp = GDK_FONT_XDISPLAY(font);
579 fontprop = XInternAtom(disp, "FONT", False);
581 if (XGetFontProperty(xfs, fontprop, &ret)) {
582 char *name = XGetAtomName(disp, (Atom)ret);
584 unsigned long fsize = 12;
586 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
587 if (XGetFontProperty(xfs, fontprop2, &fsize)) {
589 gdk_font_unref(font);
595 gdk_font_unref(font);
596 return NULL; /* something went wrong */
599 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
602 return NULL; /* shan't */
605 /* ----------------------------------------------------------------------
606 * Pango font implementation.
609 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
610 int x, int y, const char *string, int len,
611 int wide, int bold, int cellwidth);
612 static unifont *pangofont_create(GtkWidget *widget, const char *name,
614 int shadowoffset, int shadowalways);
615 static void pangofont_destroy(unifont *font);
616 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
618 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
620 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
628 PangoFontDescription *desc;
631 * The containing widget.
635 * Data passed in to unifont_create().
637 int bold, shadowoffset, shadowalways;
640 static const struct unifont_vtable pangofont_vtable = {
644 pangofont_enum_fonts,
645 pangofont_canonify_fontname,
646 pangofont_scale_fontname,
650 static unifont *pangofont_create(GtkWidget *widget, const char *name,
652 int shadowoffset, int shadowalways)
654 struct pangofont *pfont;
656 #ifndef PANGO_PRE_1POINT6
659 PangoFontDescription *desc;
661 PangoFontMetrics *metrics;
663 desc = pango_font_description_from_string(name);
666 ctx = gtk_widget_get_pango_context(widget);
668 pango_font_description_free(desc);
671 #ifndef PANGO_PRE_1POINT6
672 map = pango_context_get_font_map(ctx);
674 pango_font_description_free(desc);
677 fset = pango_font_map_load_fontset(map, ctx, desc,
678 pango_context_get_language(ctx));
680 fset = pango_context_load_fontset(ctx, desc,
681 pango_context_get_language(ctx));
684 pango_font_description_free(desc);
687 metrics = pango_fontset_get_metrics(fset);
689 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
690 pango_font_description_free(desc);
691 g_object_unref(fset);
695 pfont = snew(struct pangofont);
696 pfont->u.vt = &pangofont_vtable;
698 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
699 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
700 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
701 pfont->u.height = pfont->u.ascent + pfont->u.descent;
702 /* The Pango API is hardwired to UTF-8 */
703 pfont->u.public_charset = CS_UTF8;
704 pfont->u.real_charset = CS_UTF8;
707 pfont->widget = widget;
709 pfont->shadowoffset = shadowoffset;
710 pfont->shadowalways = shadowalways;
712 pango_font_metrics_unref(metrics);
714 return (unifont *)pfont;
717 static void pangofont_destroy(unifont *font)
719 struct pangofont *pfont = (struct pangofont *)font;
720 pango_font_description_free(pfont->desc);
721 g_object_unref(pfont->fset);
725 static void pangofont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
726 int x, int y, const char *string, int len,
727 int wide, int bold, int cellwidth)
729 struct pangofont *pfont = (struct pangofont *)font;
732 int shadowbold = FALSE;
737 y -= pfont->u.ascent;
739 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
740 pango_layout_set_font_description(layout, pfont->desc);
741 if (bold > pfont->bold) {
742 if (pfont->shadowalways)
745 PangoFontDescription *desc2 =
746 pango_font_description_copy_static(pfont->desc);
747 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
748 pango_layout_set_font_description(layout, desc2);
756 * Extract a single UTF-8 character from the string.
760 (unsigned char)string[clen] >= 0x80 &&
761 (unsigned char)string[clen] < 0xC0)
764 pango_layout_set_text(layout, string, clen);
765 pango_layout_get_pixel_extents(layout, NULL, &rect);
766 gdk_draw_layout(target, gc, x + (cellwidth - rect.width)/2,
767 y + (pfont->u.height - rect.height)/2, layout);
769 gdk_draw_layout(target, gc, x + (cellwidth - rect.width)/2 + pfont->shadowoffset,
770 y + (pfont->u.height - rect.height)/2, layout);
777 g_object_unref(layout);
781 * Dummy size value to be used when converting a
782 * PangoFontDescription of a scalable font to a string for
785 #define PANGO_DUMMY_SIZE 12
787 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
791 #ifndef PANGO_PRE_1POINT6
794 PangoFontFamily **families;
797 ctx = gtk_widget_get_pango_context(widget);
802 * Ask Pango for a list of font families, and iterate through
805 #ifndef PANGO_PRE_1POINT6
806 map = pango_context_get_font_map(ctx);
809 pango_font_map_list_families(map, &families, &nfamilies);
811 pango_context_list_families(ctx, &families, &nfamilies);
813 for (i = 0; i < nfamilies; i++) {
814 PangoFontFamily *family = families[i];
815 const char *familyname;
817 PangoFontFace **faces;
821 * Set up our flags for this font family, and get the name
824 flags = FONTFLAG_CLIENTSIDE;
825 #ifndef PANGO_PRE_1POINT4
827 * In very early versions of Pango, we can't tell
828 * monospaced fonts from non-monospaced.
830 if (!pango_font_family_is_monospace(family))
831 flags |= FONTFLAG_NONMONOSPACED;
833 familyname = pango_font_family_get_name(family);
836 * Go through the available font faces in this family.
838 pango_font_family_list_faces(family, &faces, &nfaces);
839 for (j = 0; j < nfaces; j++) {
840 PangoFontFace *face = faces[j];
841 PangoFontDescription *desc;
842 const char *facename;
844 int k, nsizes, dummysize;
847 * Get the face name string.
849 facename = pango_font_face_get_face_name(face);
852 * Set up a font description with what we've got so
853 * far. We'll fill in the size field manually and then
854 * call pango_font_description_to_string() to give the
855 * full real name of the specific font.
857 desc = pango_font_face_describe(face);
860 * See if this font has a list of specific sizes.
862 #ifndef PANGO_PRE_1POINT4
863 pango_font_face_list_sizes(face, &sizes, &nsizes);
866 * In early versions of Pango, that call wasn't
867 * supported; we just have to assume everything is
874 * Write a single entry with a dummy size.
876 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
882 * If so, go through them one by one.
884 for (k = 0; k < nsizes; k++) {
887 pango_font_description_set_size(desc, sizes[k]);
889 fullname = pango_font_description_to_string(desc);
892 * Got everything. Hand off to the callback.
893 * (The charset string is NULL, because only
894 * server-side X fonts use it.)
896 callback(callback_ctx, fullname, familyname, NULL, facename,
897 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
898 flags, &pangofont_vtable);
902 if (sizes != &dummysize)
905 pango_font_description_free(desc);
912 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
916 * When given a Pango font name to try to make sense of for a
917 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
918 * extract its original size (in pixels) into the `size' field.
921 #ifndef PANGO_PRE_1POINT6
924 PangoFontDescription *desc;
926 PangoFontMetrics *metrics;
927 char *newname, *retname;
929 desc = pango_font_description_from_string(name);
932 ctx = gtk_widget_get_pango_context(widget);
934 pango_font_description_free(desc);
937 #ifndef PANGO_PRE_1POINT6
938 map = pango_context_get_font_map(ctx);
940 pango_font_description_free(desc);
943 fset = pango_font_map_load_fontset(map, ctx, desc,
944 pango_context_get_language(ctx));
946 fset = pango_context_load_fontset(ctx, desc,
947 pango_context_get_language(ctx));
950 pango_font_description_free(desc);
953 metrics = pango_fontset_get_metrics(fset);
955 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
956 pango_font_description_free(desc);
957 g_object_unref(fset);
961 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
962 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
963 newname = pango_font_description_to_string(desc);
964 retname = dupstr(newname);
967 pango_font_metrics_unref(metrics);
968 pango_font_description_free(desc);
969 g_object_unref(fset);
974 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
977 PangoFontDescription *desc;
978 char *newname, *retname;
980 desc = pango_font_description_from_string(name);
983 pango_font_description_set_size(desc, size * PANGO_SCALE);
984 newname = pango_font_description_to_string(desc);
985 retname = dupstr(newname);
987 pango_font_description_free(desc);
992 /* ----------------------------------------------------------------------
993 * Outermost functions which do the vtable dispatch.
997 * Complete list of font-type subclasses. Listed in preference
998 * order for unifont_create(). (That is, in the extremely unlikely
999 * event that the same font name is valid as both a Pango and an
1000 * X11 font, it will be interpreted as the former in the absence
1001 * of an explicit type-disambiguating prefix.)
1003 static const struct unifont_vtable *unifont_types[] = {
1009 * Function which takes a font name and processes the optional
1010 * scheme prefix. Returns the tail of the font name suitable for
1011 * passing to individual font scheme functions, and also provides
1012 * a subrange of the unifont_types[] array above.
1014 * The return values `start' and `end' denote a half-open interval
1015 * in unifont_types[]; that is, the correct way to iterate over
1018 * for (i = start; i < end; i++) {...}
1020 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1022 int colonpos = strcspn(name, ":");
1025 if (name[colonpos]) {
1027 * There's a colon prefix on the font name. Use it to work
1028 * out which subclass to use.
1030 for (i = 0; i < lenof(unifont_types); i++) {
1031 if (strlen(unifont_types[i]->prefix) == colonpos &&
1032 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1035 return name + colonpos + 1;
1039 * None matched, so return an empty scheme list to prevent
1040 * any scheme from being called at all.
1043 return name + colonpos + 1;
1046 * No colon prefix, so just use all the subclasses.
1049 *end = lenof(unifont_types);
1054 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1055 int bold, int shadowoffset, int shadowalways)
1059 name = unifont_do_prefix(name, &start, &end);
1061 for (i = start; i < end; i++) {
1062 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1063 shadowoffset, shadowalways);
1067 return NULL; /* font not found in any scheme */
1070 void unifont_destroy(unifont *font)
1072 font->vt->destroy(font);
1075 void unifont_draw_text(GdkDrawable *target, GdkGC *gc, unifont *font,
1076 int x, int y, const char *string, int len,
1077 int wide, int bold, int cellwidth)
1079 font->vt->draw_text(target, gc, font, x, y, string, len,
1080 wide, bold, cellwidth);
1083 /* ----------------------------------------------------------------------
1084 * Implementation of a unified font selector.
1087 typedef struct fontinfo fontinfo;
1089 typedef struct unifontsel_internal {
1090 /* This must be the structure's first element, for cross-casting */
1092 GtkListStore *family_model, *style_model, *size_model;
1093 GtkWidget *family_list, *style_list, *size_entry, *size_list;
1094 GtkWidget *filter_buttons[4];
1096 tree234 *fonts_by_realname, *fonts_by_selorder;
1099 int inhibit_response; /* inhibit callbacks when we change GUI controls */
1100 } unifontsel_internal;
1103 * The structure held in the tree234s. All the string members are
1104 * part of the same allocated area, so don't need freeing
1109 char *family, *charset, *style;
1112 * Fallback sorting key, to permit multiple identical entries
1113 * to exist in the selorder tree.
1117 * Indices mapping fontinfo structures to indices in the list
1118 * boxes. sizeindex is irrelevant if the font is scalable
1121 int familyindex, styleindex, sizeindex;
1123 * The class of font.
1125 const struct unifont_vtable *fontclass;
1128 static int fontinfo_realname_compare(void *av, void *bv)
1130 fontinfo *a = (fontinfo *)av;
1131 fontinfo *b = (fontinfo *)bv;
1132 return g_strcasecmp(a->realname, b->realname);
1135 static int fontinfo_realname_find(void *av, void *bv)
1137 const char *a = (const char *)av;
1138 fontinfo *b = (fontinfo *)bv;
1139 return g_strcasecmp(a, b->realname);
1142 static int strnullcasecmp(const char *a, const char *b)
1147 * If exactly one of the inputs is NULL, it compares before
1150 if ((i = (!b) - (!a)) != 0)
1154 * NULL compares equal.
1160 * Otherwise, ordinary strcasecmp.
1162 return g_strcasecmp(a, b);
1165 static int fontinfo_selorder_compare(void *av, void *bv)
1167 fontinfo *a = (fontinfo *)av;
1168 fontinfo *b = (fontinfo *)bv;
1170 if ((i = strnullcasecmp(a->family, b->family)) != 0)
1172 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
1174 if ((i = strnullcasecmp(a->style, b->style)) != 0)
1176 if (a->size != b->size)
1177 return (a->size < b->size ? -1 : +1);
1178 if (a->index != b->index)
1179 return (a->index < b->index ? -1 : +1);
1183 static void unifontsel_setup_familylist(unifontsel_internal *fs)
1186 int i, listindex, minpos = -1, maxpos = -1;
1187 char *currfamily = NULL;
1190 gtk_list_store_clear(fs->family_model);
1194 * Search through the font tree for anything matching our
1195 * current filter criteria. When we find one, add its font
1196 * name to the list box.
1198 for (i = 0 ;; i++) {
1199 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1201 * info may be NULL if we've just run off the end of the
1202 * tree. We must still do a processing pass in that
1203 * situation, in case we had an unfinished font record in
1206 if (info && (info->flags &~ fs->filter_flags)) {
1207 info->familyindex = -1;
1208 continue; /* we're filtering out this font */
1210 if (!info || strnullcasecmp(currfamily, info->family)) {
1212 * We've either finished a family, or started a new
1216 gtk_list_store_append(fs->family_model, &iter);
1217 gtk_list_store_set(fs->family_model, &iter,
1218 0, currfamily, 1, minpos, 2, maxpos+1, -1);
1223 currfamily = info->family;
1227 break; /* now we're done */
1228 info->familyindex = listindex;
1233 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
1237 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
1238 char *currcs = NULL, *currstyle = NULL;
1241 gtk_list_store_clear(fs->style_model);
1246 * Search through the font tree for anything matching our
1247 * current filter criteria. When we find one, add its charset
1248 * and/or style name to the list box.
1250 for (i = start; i <= end; i++) {
1254 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1256 * info may be NULL if we've just run off the end of the
1257 * relevant data. We must still do a processing pass in
1258 * that situation, in case we had an unfinished font
1259 * record in progress.
1261 if (info && (info->flags &~ fs->filter_flags)) {
1262 info->styleindex = -1;
1263 continue; /* we're filtering out this font */
1265 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
1266 strnullcasecmp(currstyle, info->style)) {
1268 * We've either finished a style/charset, or started a
1273 gtk_list_store_append(fs->style_model, &iter);
1274 gtk_list_store_set(fs->style_model, &iter,
1275 0, currstyle, 1, minpos, 2, maxpos+1,
1281 if (info->charset && strnullcasecmp(currcs, info->charset)) {
1282 gtk_list_store_append(fs->style_model, &iter);
1283 gtk_list_store_set(fs->style_model, &iter,
1284 0, info->charset, 1, -1, 2, -1,
1288 currcs = info->charset;
1289 currstyle = info->style;
1293 break; /* now we're done */
1294 info->styleindex = listindex;
1299 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
1301 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
1309 gtk_list_store_clear(fs->size_model);
1313 * Search through the font tree for anything matching our
1314 * current filter criteria. When we find one, add its font
1315 * name to the list box.
1317 for (i = start; i < end; i++) {
1318 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
1319 if (info->flags &~ fs->filter_flags) {
1320 info->sizeindex = -1;
1321 continue; /* we're filtering out this font */
1324 sprintf(sizetext, "%d", info->size);
1325 info->sizeindex = listindex;
1326 gtk_list_store_append(fs->size_model, &iter);
1327 gtk_list_store_set(fs->size_model, &iter,
1328 0, sizetext, 1, i, 2, info->size, -1);
1336 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
1337 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
1338 gtk_list_store_append(fs->size_model, &iter);
1339 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
1340 2, unifontsel_default_sizes[j], -1);
1347 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
1351 for (i = 0; i < lenof(fs->filter_buttons); i++) {
1352 int flagbit = GPOINTER_TO_INT(gtk_object_get_data
1353 (GTK_OBJECT(fs->filter_buttons[i]),
1355 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
1356 !!(fs->filter_flags & flagbit));
1360 static void unifontsel_select_font(unifontsel_internal *fs,
1361 fontinfo *info, int size, int leftlist)
1365 GtkTreePath *treepath;
1368 fs->inhibit_response = TRUE;
1370 fs->selected = info;
1374 * Find the index of this fontinfo in the selorder list.
1377 findpos234(fs->fonts_by_selorder, info, NULL, &index);
1381 * Adjust the font selector flags and redo the font family
1382 * list box, if necessary.
1384 if (leftlist <= 0 &&
1385 (fs->filter_flags | info->flags) != fs->filter_flags) {
1386 fs->filter_flags |= info->flags;
1387 unifontsel_set_filter_buttons(fs);
1388 unifontsel_setup_familylist(fs);
1392 * Find the appropriate family name and select it in the list.
1394 assert(info->familyindex >= 0);
1395 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
1396 gtk_tree_selection_select_path
1397 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
1399 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
1400 treepath, NULL, FALSE, 0.0, 0.0);
1401 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, treepath);
1402 gtk_tree_path_free(treepath);
1405 * Now set up the font style list.
1407 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
1408 1, &minval, 2, &maxval, -1);
1410 unifontsel_setup_stylelist(fs, minval, maxval);
1413 * Find the appropriate style name and select it in the list.
1416 assert(info->styleindex >= 0);
1417 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
1418 gtk_tree_selection_select_path
1419 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
1421 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
1422 treepath, NULL, FALSE, 0.0, 0.0);
1423 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
1425 gtk_tree_path_free(treepath);
1428 * And set up the size list.
1430 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
1431 1, &minval, 2, &maxval, -1);
1433 unifontsel_setup_sizelist(fs, minval, maxval);
1436 * Find the appropriate size, and select it in the list.
1439 assert(info->sizeindex >= 0);
1440 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
1441 gtk_tree_selection_select_path
1442 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
1444 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
1445 treepath, NULL, FALSE, 0.0, 0.0);
1446 gtk_tree_path_free(treepath);
1450 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
1451 if (unifontsel_default_sizes[j] == size) {
1452 treepath = gtk_tree_path_new_from_indices(j, -1);
1453 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
1454 treepath, NULL, FALSE);
1455 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
1456 treepath, NULL, FALSE, 0.0,
1458 gtk_tree_path_free(treepath);
1463 * And set up the font size text entry box.
1467 sprintf(sizetext, "%d", size);
1468 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
1472 unifontsel_setup_sizelist(fs, 0, 0);
1473 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
1477 * Grey out the font size edit box if we're not using a
1480 gtk_entry_set_editable(GTK_ENTRY(fs->size_entry), fs->selected->size == 0);
1481 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
1483 fs->inhibit_response = FALSE;
1486 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
1488 unifontsel_internal *fs = (unifontsel_internal *)data;
1489 int newstate = gtk_toggle_button_get_active(tb);
1491 int flagbit = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(tb),
1495 newflags = fs->filter_flags | flagbit;
1497 newflags = fs->filter_flags & ~flagbit;
1499 if (fs->filter_flags != newflags) {
1500 fs->filter_flags = newflags;
1501 unifontsel_setup_familylist(fs);
1505 static void unifontsel_add_entry(void *ctx, const char *realfontname,
1506 const char *family, const char *charset,
1507 const char *style, int size, int flags,
1508 const struct unifont_vtable *fontclass)
1510 unifontsel_internal *fs = (unifontsel_internal *)ctx;
1515 totalsize = sizeof(fontinfo) + strlen(realfontname) +
1516 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
1517 (style ? strlen(style) : 0) + 10;
1518 info = (fontinfo *)smalloc(totalsize);
1519 info->fontclass = fontclass;
1520 p = (char *)info + sizeof(fontinfo);
1522 strcpy(p, realfontname);
1529 info->family = NULL;
1535 info->charset = NULL;
1542 assert(p - (char *)info <= totalsize);
1544 info->flags = flags;
1545 info->index = count234(fs->fonts_by_selorder);
1548 * It's just conceivable that a misbehaving font enumerator
1549 * might tell us about the same font real name more than once,
1550 * in which case we should silently drop the new one.
1552 if (add234(fs->fonts_by_realname, info) != info) {
1557 * However, we should never get a duplicate key in the
1558 * selorder tree, because the index field carefully
1559 * disambiguates otherwise identical records.
1561 add234(fs->fonts_by_selorder, info);
1564 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
1566 unifontsel_internal *fs = (unifontsel_internal *)data;
1567 GtkTreeModel *treemodel;
1568 GtkTreeIter treeiter;
1572 if (fs->inhibit_response) /* we made this change ourselves */
1575 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
1578 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
1579 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
1580 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize, 1);
1583 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
1585 unifontsel_internal *fs = (unifontsel_internal *)data;
1586 GtkTreeModel *treemodel;
1587 GtkTreeIter treeiter;
1591 if (fs->inhibit_response) /* we made this change ourselves */
1594 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
1597 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
1599 return; /* somehow a charset heading got clicked */
1600 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
1601 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize, 2);
1604 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
1606 unifontsel_internal *fs = (unifontsel_internal *)data;
1607 GtkTreeModel *treemodel;
1608 GtkTreeIter treeiter;
1612 if (fs->inhibit_response) /* we made this change ourselves */
1615 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
1618 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
1619 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
1620 unifontsel_select_font(fs, info, info->size ? info->size : size, 3);
1623 static void size_entry_changed(GtkEditable *ed, gpointer data)
1625 unifontsel_internal *fs = (unifontsel_internal *)data;
1629 if (fs->inhibit_response) /* we made this change ourselves */
1632 text = gtk_entry_get_text(GTK_ENTRY(ed));
1636 assert(fs->selected->size == 0);
1637 unifontsel_select_font(fs, fs->selected, size, 3);
1641 unifontsel *unifontsel_new(const char *wintitle)
1643 unifontsel_internal *fs = snew(unifontsel_internal);
1644 GtkWidget *table, *label, *w, *scroll;
1645 GtkListStore *model;
1646 GtkTreeViewColumn *column;
1647 int lists_height, font_width, style_width, size_width;
1650 fs->inhibit_response = FALSE;
1654 * Invent some magic size constants.
1657 label = gtk_label_new("Quite Long Font Name (Foundry)");
1658 gtk_widget_size_request(label, &req);
1659 font_width = req.width;
1660 lists_height = 14 * req.height;
1661 gtk_label_set_text(GTK_LABEL(label), "Italic Extra Condensed");
1662 gtk_widget_size_request(label, &req);
1663 style_width = req.width;
1664 gtk_label_set_text(GTK_LABEL(label), "48000");
1665 gtk_widget_size_request(label, &req);
1666 size_width = req.width;
1667 #if GTK_CHECK_VERSION(2,10,0)
1668 g_object_ref_sink(label);
1669 g_object_unref(label);
1671 gtk_object_sink(GTK_OBJECT(label));
1676 * Create the dialog box and initialise the user-visible
1677 * fields in the returned structure.
1679 fs->u.user_data = NULL;
1680 fs->u.window = GTK_WINDOW(gtk_dialog_new());
1681 gtk_window_set_title(fs->u.window, wintitle);
1682 fs->u.cancel_button = gtk_dialog_add_button
1683 (GTK_DIALOG(fs->u.window), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
1684 fs->u.ok_button = gtk_dialog_add_button
1685 (GTK_DIALOG(fs->u.window), GTK_STOCK_OK, GTK_RESPONSE_OK);
1686 gtk_widget_grab_default(fs->u.ok_button);
1689 * Now set up the internal fields, including in particular all
1690 * the controls that actually allow the user to select fonts.
1692 table = gtk_table_new(3, 8, FALSE);
1693 gtk_widget_show(table);
1694 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
1695 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fs->u.window)->vbox),
1696 table, TRUE, TRUE, 0);
1698 label = gtk_label_new_with_mnemonic("_Font:");
1699 gtk_widget_show(label);
1700 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
1701 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
1704 * The Font list box displays only a string, but additionally
1705 * stores two integers which give the limits within the
1706 * tree234 of the font entries covered by this list entry.
1708 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
1709 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
1710 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
1711 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
1713 column = gtk_tree_view_column_new_with_attributes
1714 ("Font", gtk_cell_renderer_text_new(),
1715 "text", 0, (char *)NULL);
1716 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
1717 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
1718 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
1719 "changed", G_CALLBACK(family_changed), fs);
1721 scroll = gtk_scrolled_window_new(NULL, NULL);
1722 gtk_container_add(GTK_CONTAINER(scroll), w);
1723 gtk_widget_show(scroll);
1724 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
1725 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
1726 gtk_widget_set_size_request(scroll, font_width, lists_height);
1727 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL, 0, 0, 0);
1728 fs->family_model = model;
1729 fs->family_list = w;
1731 label = gtk_label_new_with_mnemonic("_Style:");
1732 gtk_widget_show(label);
1733 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
1734 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
1737 * The Style list box can contain insensitive elements
1738 * (character set headings for server-side fonts), so we add
1739 * an extra column to the list store to hold that information.
1741 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
1743 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
1744 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
1745 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
1747 column = gtk_tree_view_column_new_with_attributes
1748 ("Style", gtk_cell_renderer_text_new(),
1749 "text", 0, "sensitive", 3, (char *)NULL);
1750 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
1751 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
1752 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
1753 "changed", G_CALLBACK(style_changed), fs);
1755 scroll = gtk_scrolled_window_new(NULL, NULL);
1756 gtk_container_add(GTK_CONTAINER(scroll), w);
1757 gtk_widget_show(scroll);
1758 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
1759 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
1760 gtk_widget_set_size_request(scroll, style_width, lists_height);
1761 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL, 0, 0, 0);
1762 fs->style_model = model;
1765 label = gtk_label_new_with_mnemonic("Si_ze:");
1766 gtk_widget_show(label);
1767 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
1768 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
1771 * The Size label attaches primarily to a text input box so
1772 * that the user can select a size of their choice. The list
1773 * of available sizes is secondary.
1775 fs->size_entry = w = gtk_entry_new();
1776 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
1777 gtk_widget_set_size_request(w, size_width, -1);
1779 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
1780 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
1783 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
1784 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
1785 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
1787 column = gtk_tree_view_column_new_with_attributes
1788 ("Size", gtk_cell_renderer_text_new(),
1789 "text", 0, (char *)NULL);
1790 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
1791 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
1792 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
1793 "changed", G_CALLBACK(size_changed), fs);
1795 scroll = gtk_scrolled_window_new(NULL, NULL);
1796 gtk_container_add(GTK_CONTAINER(scroll), w);
1797 gtk_widget_show(scroll);
1798 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
1799 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
1800 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
1801 GTK_EXPAND | GTK_FILL, 0, 0);
1802 fs->size_model = model;
1806 * FIXME: preview widget
1809 w = gtk_check_button_new_with_label("Show client-side fonts");
1810 gtk_object_set_data(GTK_OBJECT(w), "user-data",
1811 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
1812 gtk_signal_connect(GTK_OBJECT(w), "toggled",
1813 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
1815 fs->filter_buttons[i++] = w;
1816 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
1817 w = gtk_check_button_new_with_label("Show server-side fonts");
1818 gtk_object_set_data(GTK_OBJECT(w), "user-data",
1819 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
1820 gtk_signal_connect(GTK_OBJECT(w), "toggled",
1821 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
1823 fs->filter_buttons[i++] = w;
1824 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
1825 w = gtk_check_button_new_with_label("Show server-side font aliases");
1826 gtk_object_set_data(GTK_OBJECT(w), "user-data",
1827 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
1828 gtk_signal_connect(GTK_OBJECT(w), "toggled",
1829 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
1831 fs->filter_buttons[i++] = w;
1832 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
1833 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
1834 gtk_object_set_data(GTK_OBJECT(w), "user-data",
1835 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
1836 gtk_signal_connect(GTK_OBJECT(w), "toggled",
1837 GTK_SIGNAL_FUNC(unifontsel_button_toggled), fs);
1839 fs->filter_buttons[i++] = w;
1840 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
1842 assert(i == lenof(fs->filter_buttons));
1843 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE;
1844 unifontsel_set_filter_buttons(fs);
1847 * Go and find all the font names, and set up our master font
1850 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
1851 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
1852 for (i = 0; i < lenof(unifont_types); i++)
1853 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
1854 unifontsel_add_entry, fs);
1857 * And set up the initial font names list.
1859 unifontsel_setup_familylist(fs);
1861 fs->selected = NULL;
1863 return (unifontsel *)fs;
1866 void unifontsel_destroy(unifontsel *fontsel)
1868 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
1871 freetree234(fs->fonts_by_selorder);
1872 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
1874 freetree234(fs->fonts_by_realname);
1876 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
1880 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
1882 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
1883 int i, start, end, size;
1884 const char *fontname2 = NULL;
1888 * Provide a default if given an empty or null font name.
1890 if (!fontname || !*fontname)
1891 fontname = "fixed"; /* Pango zealots might prefer "Monospace 12" */
1894 * Call the canonify_fontname function.
1896 fontname = unifont_do_prefix(fontname, &start, &end);
1897 for (i = start; i < end; i++) {
1898 fontname2 = unifont_types[i]->canonify_fontname
1899 (GTK_WIDGET(fs->u.window), fontname, &size);
1904 return; /* font name not recognised */
1907 * Now look up the canonified font name in our index.
1909 info = find234(fs->fonts_by_realname, (char *)fontname2,
1910 fontinfo_realname_find);
1913 * If we've found the font, and its size field is either
1914 * correct or zero (the latter indicating a scalable font),
1915 * then we're done. Otherwise, try looking up the original
1916 * font name instead.
1918 if (!info || (info->size != size && info->size != 0)) {
1919 info = find234(fs->fonts_by_realname, (char *)fontname,
1920 fontinfo_realname_find);
1921 if (!info || info->size != size)
1922 return; /* font name not in our index */
1926 * Now we've got a fontinfo structure and a font size, so we
1927 * know everything we need to fill in all the fields in the
1930 unifontsel_select_font(fs, info, size, 0);
1933 char *unifontsel_get_name(unifontsel *fontsel)
1935 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
1938 assert(fs->selected);
1940 if (fs->selected->size == 0) {
1941 name = fs->selected->fontclass->scale_fontname
1942 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
1947 return dupstr(fs->selected->realname);