2 * Unified font management for GTK.
4 * PuTTY is willing to use both old-style X server-side bitmap
5 * fonts _and_ GTK2/Pango client-side fonts. This requires us to
6 * do a bit of work to wrap the two wildly different APIs into
7 * forms the rest of the code can switch between seamlessly, and
8 * also requires a custom font selector capable of handling both
16 #if !GTK_CHECK_VERSION(3,0,0)
17 #include <gdk/gdkkeysyms.h>
22 #include <X11/Xutil.h>
23 #include <X11/Xatom.h>
33 * - it would be nice to have a display of the current font name,
34 * and in particular whether it's client- or server-side,
35 * during the progress of the font selector.
37 * - it would be nice if we could move the processing of
38 * underline and VT100 double width into this module, so that
39 * instead of using the ghastly pixmap-stretching technique
40 * everywhere we could tell the Pango backend to scale its
41 * fonts to double size properly and at full resolution.
42 * However, this requires me to learn how to make Pango stretch
43 * text to an arbitrary aspect ratio (for double-width only
44 * text, which perversely is harder than DW+DH), and right now
45 * I haven't the energy.
48 #if !GLIB_CHECK_VERSION(1,3,7)
49 #define g_ascii_strcasecmp g_strcasecmp
50 #define g_ascii_strncasecmp g_strncasecmp
54 * Ad-hoc vtable mechanism to allow font structures to be
57 * Any instance of `unifont' used in the vtable functions will
58 * actually be the first element of a larger structure containing
59 * data specific to the subtype. This is permitted by the ISO C
60 * provision that one may safely cast between a pointer to a
61 * structure and a pointer to its first element.
64 #define FONTFLAG_CLIENTSIDE 0x0001
65 #define FONTFLAG_SERVERSIDE 0x0002
66 #define FONTFLAG_SERVERALIAS 0x0004
67 #define FONTFLAG_NONMONOSPACED 0x0008
69 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
71 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
72 const char *family, const char *charset,
73 const char *style, const char *stylekey,
75 const struct unifont_vtable *fontclass);
77 struct unifont_vtable {
79 * `Methods' of the `class'.
81 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
82 int shadowoffset, int shadowalways);
83 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
84 int bold, int shadowoffset, int shadowalways);
85 void (*destroy)(unifont *font);
86 int (*has_glyph)(unifont *font, wchar_t glyph);
87 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
88 int x, int y, const wchar_t *string, int len,
89 int wide, int bold, int cellwidth);
90 void (*enum_fonts)(GtkWidget *widget,
91 fontsel_add_entry callback, void *callback_ctx);
92 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
93 int *flags, int resolve_aliases);
94 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
97 * `Static data members' of the `class'.
102 #ifndef NOT_X_WINDOWS
104 /* ----------------------------------------------------------------------
105 * X11 font implementation, directly using Xlib calls. Conditioned out
106 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
107 * back end other than X).
110 static int x11font_has_glyph(unifont *font, wchar_t glyph);
111 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
112 int x, int y, const wchar_t *string, int len,
113 int wide, int bold, int cellwidth);
114 static unifont *x11font_create(GtkWidget *widget, const char *name,
116 int shadowoffset, int shadowalways);
117 static void x11font_destroy(unifont *font);
118 static void x11font_enum_fonts(GtkWidget *widget,
119 fontsel_add_entry callback, void *callback_ctx);
120 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
121 int *size, int *flags,
122 int resolve_aliases);
123 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
126 #ifdef DRAW_TEXT_CAIRO
127 struct cairo_cached_glyph {
128 cairo_surface_t *surface;
129 unsigned char *bitmap;
134 * Structure storing a single physical XFontStruct, plus associated
137 typedef struct x11font_individual {
138 /* The XFontStruct itself. */
142 * The `allocated' flag indicates whether we've tried to fetch
143 * this subfont already (thus distinguishing xfs==NULL because we
144 * haven't tried yet from xfs==NULL because we tried and failed,
145 * so that we don't keep trying and failing subsequently).
149 #ifdef DRAW_TEXT_CAIRO
151 * A cache of glyph bitmaps downloaded from the X server when
152 * we're in Cairo rendering mode. If glyphcache itself is
153 * non-NULL, then entries in [0,nglyphs) are expected to be
154 * initialised to either NULL or a bitmap pointer.
156 struct cairo_cached_glyph *glyphcache;
160 * X server paraphernalia for actually downloading the glyphs.
164 int pixwidth, pixheight, pixoriginx, pixoriginy;
167 * Paraphernalia for loading the resulting bitmaps into Cairo.
169 int rowsize, allsize, indexflip;
172 } x11font_individual;
177 * Individual physical X fonts. We store a number of these, for
178 * automatically guessed bold and wide variants.
180 x11font_individual fonts[4];
182 * `sixteen_bit' is true iff the font object is indexed by
183 * values larger than a byte. That is, this flag tells us
184 * whether we use XDrawString or XDrawString16, etc.
188 * `variable' is true iff the font is non-fixed-pitch. This
189 * enables some code which takes greater care over character
190 * positioning during text drawing.
194 * real_charset is the charset used when translating text into the
195 * font's internal encoding inside draw_text(). This need not be
196 * the same as the public_charset provided to the client; for
197 * example, public_charset might be CS_ISO8859_1 while
198 * real_charset is CS_ISO8859_1_X11.
202 * Data passed in to unifont_create().
204 int wide, bold, shadowoffset, shadowalways;
207 static const struct unifont_vtable x11font_vtable = {
209 NULL, /* no fallback fonts in X11 */
214 x11font_canonify_fontname,
215 x11font_scale_fontname,
219 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
221 Display *disp = GDK_DISPLAY();
222 Atom fontprop = XInternAtom(disp, "FONT", False);
224 if (XGetFontProperty(xfs, fontprop, &ret)) {
225 char *name = XGetAtomName(disp, (Atom)ret);
226 if (name && name[0] == '-') {
227 const char *strings[13];
228 char *dupname, *extrafree = NULL, *ret;
232 p = q = dupname = dupstr(name); /* skip initial minus */
235 while (*p && nstr < lenof(strings)) {
238 strings[nstr++] = p+1;
243 if (nstr < lenof(strings)) {
245 return NULL; /* XLFD was malformed */
252 /* 4 is `wideness', which obviously may have changed. */
253 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
254 strings[4] = strings[5] = "*";
255 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
258 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
259 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
260 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
261 "-", strings[ 9], "-", strings[10], "-", strings[11],
262 "-", strings[12], NULL);
272 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
278 return XTextWidth16(xfs, &space, 1);
280 return XTextWidth(xfs, "0", 1);
284 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
289 * Not to be confused with x11font_has_glyph, which is a method of
290 * the x11font 'class' and hence takes a unifont as argument. This
291 * is the low-level function which grubs about in an actual
292 * XFontStruct to see if a given glyph exists.
294 * We must do this ourselves rather than letting Xlib's
295 * XTextExtents16 do the job, because XTextExtents will helpfully
296 * substitute the font's default_char for any missing glyph and
297 * not tell us it did so, which precisely won't help us find out
298 * which glyphs _are_ missing.
300 * The man page for XQueryFont is rather confusing about how the
301 * per_char array in the XFontStruct is laid out, because it gives
302 * formulae for determining the two-byte X character code _from_
303 * an index into the per_char array. Going the other way, it's
306 * The valid character codes have byte1 between min_byte1 and
307 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
308 * max_char_or_byte2 inclusive. This gives a rectangle of size
309 * (max_byte2-min_byte1+1) by
310 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
311 * rectangle encoded in the per_char array. Hence, given a
312 * character code which is valid in the sense that it falls
313 * somewhere in that rectangle, its index in per_char is given by
316 * x = byte2 - min_char_or_byte2
317 * y = byte1 - min_byte1
318 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
320 * If min_byte1 and min_byte2 are both zero, that's a special case
321 * which can be treated as if min_byte2 was 1 instead, i.e. the
322 * per_char array just runs from min_char_or_byte2 to
323 * max_char_or_byte2 inclusive, and byte1 should always be zero.
326 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
329 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
330 index = byte2 - xfs->min_char_or_byte2;
332 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
334 index = ((byte2 - xfs->min_char_or_byte2) +
335 ((byte1 - xfs->min_byte1) *
336 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
339 if (!xfs->per_char) /* per_char NULL => everything in range exists */
342 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
343 xfs->per_char[index].width > 0);
346 static unifont *x11font_create(GtkWidget *widget, const char *name,
348 int shadowoffset, int shadowalways)
350 struct x11font *xfont;
352 Display *disp = GDK_DISPLAY();
353 Atom charset_registry, charset_encoding, spacing;
354 unsigned long registry_ret, encoding_ret, spacing_ret;
355 int pubcs, realcs, sixteen_bit, variable;
358 xfs = XLoadQueryFont(disp, name);
362 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
363 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
365 pubcs = realcs = CS_NONE;
369 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
370 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
372 reg = XGetAtomName(disp, (Atom)registry_ret);
373 enc = XGetAtomName(disp, (Atom)encoding_ret);
375 char *encoding = dupcat(reg, "-", enc, NULL);
376 pubcs = realcs = charset_from_xenc(encoding);
379 * iso10646-1 is the only wide font encoding we
380 * support. In this case, we expect clients to give us
381 * UTF-8, which this module must internally convert
382 * into 16-bit Unicode.
384 if (!strcasecmp(encoding, "iso10646-1")) {
386 pubcs = realcs = CS_UTF8;
390 * Hack for X line-drawing characters: if the primary font
391 * is encoded as ISO-8859-1, and has valid glyphs in the
392 * low character positions, it is assumed that those
393 * glyphs are the VT100 line-drawing character set.
395 if (pubcs == CS_ISO8859_1) {
397 for (ch = 1; ch < 32; ch++)
398 if (!x11_font_has_glyph(xfs, 0, ch))
401 realcs = CS_ISO8859_1_X11;
408 spacing = XInternAtom(disp, "SPACING", False);
409 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
411 spc = XGetAtomName(disp, (Atom)spacing_ret);
413 if (spc && strchr("CcMm", spc[0]))
417 xfont = snew(struct x11font);
418 xfont->u.vt = &x11font_vtable;
419 xfont->u.width = x11_font_width(xfs, sixteen_bit);
420 xfont->u.ascent = xfs->ascent;
421 xfont->u.descent = xfs->descent;
422 xfont->u.height = xfont->u.ascent + xfont->u.descent;
423 xfont->u.public_charset = pubcs;
424 xfont->u.want_fallback = TRUE;
426 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
427 #elif defined DRAW_TEXT_CAIRO
428 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
430 #error No drawtype available at all
432 xfont->real_charset = realcs;
433 xfont->sixteen_bit = sixteen_bit;
434 xfont->variable = variable;
437 xfont->shadowoffset = shadowoffset;
438 xfont->shadowalways = shadowalways;
440 for (i = 0; i < lenof(xfont->fonts); i++) {
441 xfont->fonts[i].xfs = NULL;
442 xfont->fonts[i].allocated = FALSE;
443 #ifdef DRAW_TEXT_CAIRO
444 xfont->fonts[i].glyphcache = NULL;
445 xfont->fonts[i].nglyphs = 0;
446 xfont->fonts[i].pixmap = None;
447 xfont->fonts[i].gc = None;
450 xfont->fonts[0].xfs = xfs;
451 xfont->fonts[0].allocated = TRUE;
453 return (unifont *)xfont;
456 static void x11font_destroy(unifont *font)
458 Display *disp = GDK_DISPLAY();
459 struct x11font *xfont = (struct x11font *)font;
462 for (i = 0; i < lenof(xfont->fonts); i++) {
463 if (xfont->fonts[i].xfs)
464 XFreeFont(disp, xfont->fonts[i].xfs);
465 #ifdef DRAW_TEXT_CAIRO
466 if (xfont->fonts[i].gc != None)
467 XFreeGC(disp, xfont->fonts[i].gc);
468 if (xfont->fonts[i].pixmap != None)
469 XFreePixmap(disp, xfont->fonts[i].pixmap);
470 if (xfont->fonts[i].glyphcache) {
472 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
473 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
474 sfree(xfont->fonts[i].glyphcache[j].bitmap);
476 sfree(xfont->fonts[i].glyphcache);
483 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
485 Display *disp = GDK_DISPLAY();
486 char *derived_name = x11_guess_derived_font_name
487 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
488 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
489 xfont->fonts[sfid].allocated = TRUE;
491 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
494 static int x11font_has_glyph(unifont *font, wchar_t glyph)
496 struct x11font *xfont = (struct x11font *)font;
498 if (xfont->sixteen_bit) {
500 * This X font has 16-bit character indices, which means
501 * we can directly use our Unicode input value.
503 return x11_font_has_glyph(xfont->fonts[0].xfs,
504 glyph >> 8, glyph & 0xFF);
507 * This X font has 8-bit indices, so we must convert to the
508 * appropriate character set.
511 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
512 sbstring, 2, "", NULL, NULL);
513 if (sblen == 0 || !sbstring[0])
514 return FALSE; /* not even in the charset */
516 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
517 (unsigned char)sbstring[0]);
521 #if !GTK_CHECK_VERSION(2,0,0)
522 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
525 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
526 const void *vstring, int start, int length)
528 const XChar2b *string = (const XChar2b *)vstring;
529 return XTextWidth16(xfi->xfs, string+start, length);
532 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
533 const void *vstring, int start, int length)
535 const char *string = (const char *)vstring;
536 return XTextWidth(xfi->xfs, string+start, length);
540 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
542 XSetFont(GDK_DISPLAY(), GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
545 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
546 x11font_individual *xfi, int x, int y,
547 const void *vstring, int start, int length)
549 const XChar2b *string = (const XChar2b *)vstring;
550 XDrawString16(GDK_DISPLAY(), GDK_DRAWABLE_XID(ctx->u.gdk.target),
551 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
554 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
555 x11font_individual *xfi, int x, int y,
556 const void *vstring, int start, int length)
558 const char *string = (const char *)vstring;
559 XDrawString(GDK_DISPLAY(), GDK_DRAWABLE_XID(ctx->u.gdk.target),
560 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
564 #ifdef DRAW_TEXT_CAIRO
565 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
567 if (xfi->pixmap == None) {
569 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
570 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
573 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
575 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
576 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
577 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
579 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
581 xfi->allsize = xfi->rowsize * xfi->pixheight;
585 * Test host endianness and use it to set xfi->indexflip,
586 * which is XORed into our left-shift counts in order to
587 * implement the CAIRO_FORMAT_A1 specification, in which
588 * each bitmap byte is oriented LSB-first on little-endian
589 * platforms and MSB-first on big-endian ones.
591 * This is the same technique Cairo itself uses to test
592 * endianness, so hopefully it'll work in any situation
593 * where Cairo is usable at all.
595 static const int endianness_test = 1;
596 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
599 xfi->pixmap = XCreatePixmap
601 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
602 xfi->pixwidth, xfi->pixheight, 1);
603 gcvals.foreground = WhitePixel(GDK_DISPLAY(), widgetscr);
604 gcvals.background = BlackPixel(GDK_DISPLAY(), widgetscr);
605 gcvals.font = xfi->xfs->fid;
606 xfi->gc = XCreateGC(GDK_DISPLAY(), xfi->pixmap,
607 GCForeground | GCBackground | GCFont, &gcvals);
611 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
615 unsigned char *bitmap;
617 bitmap = snewn(xfi->allsize, unsigned char);
618 memset(bitmap, 0, xfi->allsize);
620 image = XGetImage(GDK_DISPLAY(), xfi->pixmap, 0, 0,
621 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
622 for (y = 0; y < xfi->pixheight; y++) {
623 for (x = 0; x < xfi->pixwidth; x++) {
624 unsigned long pixel = XGetPixel(image, x, y);
626 int byteindex = y * xfi->rowsize + x/8;
627 int bitindex = (x & 7) ^ xfi->indexflip;
628 bitmap[byteindex] |= 1U << bitindex;
632 XDestroyImage(image);
634 if (xfi->nglyphs <= glyphindex) {
635 /* Round up to the next multiple of 256 on the general
636 * principle that Unicode characters come in contiguous blocks
637 * often used together */
638 int old_nglyphs = xfi->nglyphs;
639 xfi->nglyphs = (glyphindex + 0xFF) & ~0xFF;
640 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
641 struct cairo_cached_glyph);
643 while (old_nglyphs < xfi->nglyphs) {
644 xfi->glyphcache[old_nglyphs].surface = NULL;
645 xfi->glyphcache[old_nglyphs].bitmap = NULL;
649 xfi->glyphcache[glyphindex].bitmap = bitmap;
650 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
651 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
654 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
655 x11font_individual *xfi, int x, int y,
658 if (xfi->glyphcache[glyphindex].surface) {
659 cairo_mask_surface(ctx->u.cairo.cr,
660 xfi->glyphcache[glyphindex].surface,
661 x - xfi->pixoriginx, y - xfi->pixoriginy);
665 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
666 x11font_individual *xfi, int x, int y,
667 const void *vstring, int start, int length)
669 const XChar2b *string = (const XChar2b *)vstring + start;
671 for (i = 0; i < length; i++) {
672 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
673 int glyphindex = (256 * (unsigned char)string[i].byte1 +
674 (unsigned char)string[i].byte2);
675 if (glyphindex >= xfi->nglyphs ||
676 !xfi->glyphcache[glyphindex].surface) {
677 XDrawImageString16(GDK_DISPLAY(), xfi->pixmap, xfi->gc,
678 xfi->pixoriginx, xfi->pixoriginy,
680 x11font_cairo_cache_glyph(xfi, glyphindex);
682 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
683 x += XTextWidth16(xfi->xfs, string+i, 1);
688 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
689 x11font_individual *xfi, int x, int y,
690 const void *vstring, int start, int length)
692 const char *string = (const char *)vstring + start;
694 for (i = 0; i < length; i++) {
695 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
696 int glyphindex = (unsigned char)string[i];
697 if (glyphindex >= xfi->nglyphs ||
698 !xfi->glyphcache[glyphindex].surface) {
699 XDrawImageString(GDK_DISPLAY(), xfi->pixmap, xfi->gc,
700 xfi->pixoriginx, xfi->pixoriginy,
702 x11font_cairo_cache_glyph(xfi, glyphindex);
704 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
705 x += XTextWidth(xfi->xfs, string+i, 1);
709 #endif /* DRAW_TEXT_CAIRO */
711 struct x11font_drawfuncs {
712 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
713 const void *vstring, int start, int length);
714 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
715 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
716 const void *vstring, int start, int length);
720 * This array has two entries per compiled-in drawtype; of each pair,
721 * the first is for an 8-bit font and the second for 16-bit.
723 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
738 #ifdef DRAW_TEXT_CAIRO
743 x11font_cairo_draw_8,
745 /* [3] cairo, 16-bit */
749 x11font_cairo_draw_16,
754 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
755 unifont_drawctx *ctx,
756 x11font_individual *xfi, int x, int y,
757 const void *string, int nchars,
759 int fontvariable, int cellwidth)
761 int start = 0, step, nsteps, centre;
765 * In a variable-pitch font, we draw one character at a
766 * time, and centre it in the character cell.
773 * In a fixed-pitch font, we can draw the whole lot in one go.
780 dfns->setup(ctx, xfi);
782 while (nsteps-- > 0) {
785 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
787 dfns->draw(ctx, xfi, X, y, string, start, step);
789 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
796 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
797 int x, int y, const wchar_t *string, int len,
798 int wide, int bold, int cellwidth)
800 struct x11font *xfont = (struct x11font *)font;
802 int shadowoffset = 0;
803 int mult = (wide ? 2 : 1);
804 int index = 2 * (int)ctx->type;
810 * Decide which subfont we're using, and whether we have to
813 if (xfont->shadowalways && bold) {
814 shadowoffset = xfont->shadowoffset;
817 sfid = 2 * wide + bold;
818 if (!xfont->fonts[sfid].allocated)
819 x11_alloc_subfont(xfont, sfid);
820 if (bold && !xfont->fonts[sfid].xfs) {
822 shadowoffset = xfont->shadowoffset;
823 sfid = 2 * wide + bold;
824 if (!xfont->fonts[sfid].allocated)
825 x11_alloc_subfont(xfont, sfid);
828 if (!xfont->fonts[sfid].xfs)
829 return; /* we've tried our best, but no luck */
831 if (xfont->sixteen_bit) {
833 * This X font has 16-bit character indices, which means
834 * we can directly use our Unicode input string.
839 xcs = snewn(len, XChar2b);
840 for (i = 0; i < len; i++) {
841 xcs[i].byte1 = string[i] >> 8;
842 xcs[i].byte2 = string[i];
845 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
846 &xfont->fonts[sfid], x, y,
847 xcs, len, shadowoffset,
848 xfont->variable, cellwidth * mult);
852 * This X font has 8-bit indices, so we must convert to the
853 * appropriate character set.
855 char *sbstring = snewn(len+1, char);
856 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
857 sbstring, len+1, ".", NULL, NULL);
858 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
859 &xfont->fonts[sfid], x, y,
860 sbstring, sblen, shadowoffset,
861 xfont->variable, cellwidth * mult);
866 static void x11font_enum_fonts(GtkWidget *widget,
867 fontsel_add_entry callback, void *callback_ctx)
871 int nnames, i, max, tmpsize;
875 fontnames = XListFonts(GDK_DISPLAY(), "*", max, &nnames);
877 XFreeFontNames(fontnames);
885 for (i = 0; i < nnames; i++) {
886 if (fontnames[i][0] == '-') {
888 * Dismember an XLFD and convert it into the format
889 * we'll be using in the font selector.
891 char *components[14];
892 char *p, *font, *style, *stylekey, *charset;
893 int j, weightkey, slantkey, setwidthkey;
894 int thistmpsize, fontsize, flags;
896 thistmpsize = 4 * strlen(fontnames[i]) + 256;
897 if (tmpsize < thistmpsize) {
898 tmpsize = thistmpsize;
899 tmp = sresize(tmp, tmpsize, char);
901 strcpy(tmp, fontnames[i]);
904 for (j = 0; j < 14; j++) {
908 while (*p && *p != '-')
914 * Font name is made up of fields 0 and 1, in reverse
915 * order with parentheses. (This is what the GTK 1.2 X
916 * font selector does, and it seems to come out
917 * looking reasonably sensible.)
920 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
923 * Charset is made up of fields 12 and 13.
926 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
929 * Style is a mixture of quite a lot of the fields,
930 * with some strange formatting.
933 p += sprintf(p, "%s", components[2][0] ? components[2] :
935 if (!g_ascii_strcasecmp(components[3], "i"))
936 p += sprintf(p, " italic");
937 else if (!g_ascii_strcasecmp(components[3], "o"))
938 p += sprintf(p, " oblique");
939 else if (!g_ascii_strcasecmp(components[3], "ri"))
940 p += sprintf(p, " reverse italic");
941 else if (!g_ascii_strcasecmp(components[3], "ro"))
942 p += sprintf(p, " reverse oblique");
943 else if (!g_ascii_strcasecmp(components[3], "ot"))
944 p += sprintf(p, " other-slant");
945 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
946 p += sprintf(p, " %s", components[4]);
947 if (!g_ascii_strcasecmp(components[10], "m"))
948 p += sprintf(p, " [M]");
949 if (!g_ascii_strcasecmp(components[10], "c"))
950 p += sprintf(p, " [C]");
951 if (components[5][0])
952 p += sprintf(p, " %s", components[5]);
955 * Style key is the same stuff as above, but with a
956 * couple of transformations done on it to make it
957 * sort more sensibly.
961 if (!g_ascii_strcasecmp(components[2], "medium") ||
962 !g_ascii_strcasecmp(components[2], "regular") ||
963 !g_ascii_strcasecmp(components[2], "normal") ||
964 !g_ascii_strcasecmp(components[2], "book"))
966 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
967 !g_ascii_strncasecmp(components[2], "semi", 4))
971 if (!g_ascii_strcasecmp(components[3], "r"))
973 else if (!g_ascii_strncasecmp(components[3], "r", 1))
977 if (!g_ascii_strcasecmp(components[4], "normal"))
982 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
984 (int)strlen(components[2]), components[2],
986 (int)strlen(components[3]), components[3],
988 (int)strlen(components[4]), components[4],
989 (int)strlen(components[10]), components[10],
990 (int)strlen(components[5]), components[5]);
992 assert(p - tmp < thistmpsize);
995 * Size is in pixels, for our application, so we
996 * derive it directly from the pixel size field,
999 fontsize = atoi(components[6]);
1002 * Flags: we need to know whether this is a monospaced
1003 * font, which we do by examining the spacing field
1006 flags = FONTFLAG_SERVERSIDE;
1007 if (!strchr("CcMm", components[10][0]))
1008 flags |= FONTFLAG_NONMONOSPACED;
1011 * Not sure why, but sometimes the X server will
1012 * deliver dummy font types in which fontsize comes
1013 * out as zero. Filter those out.
1016 callback(callback_ctx, fontnames[i], font, charset,
1017 style, stylekey, fontsize, flags, &x11font_vtable);
1020 * This isn't an XLFD, so it must be an alias.
1021 * Transmit it with mostly null data.
1023 * It would be nice to work out if it's monospaced
1024 * here, but at the moment I can't see that being
1025 * anything but computationally hideous. Ah well.
1027 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1028 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1031 XFreeFontNames(fontnames);
1034 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1035 int *size, int *flags,
1036 int resolve_aliases)
1039 * When given an X11 font name to try to make sense of for a
1040 * font selector, we must attempt to load it (to see if it
1041 * exists), and then canonify it by extracting its FONT
1042 * property, which should give its full XLFD even if what we
1043 * originally had was a wildcard.
1045 * However, we must carefully avoid canonifying font
1046 * _aliases_, unless specifically asked to, because the font
1047 * selector treats them as worthwhile in their own right.
1050 Display *disp = GDK_DISPLAY();
1051 Atom fontprop, fontprop2;
1054 xfs = XLoadQueryFont(disp, name);
1057 return NULL; /* didn't make sense to us, sorry */
1059 fontprop = XInternAtom(disp, "FONT", False);
1061 if (XGetFontProperty(xfs, fontprop, &ret)) {
1062 char *newname = XGetAtomName(disp, (Atom)ret);
1064 unsigned long fsize = 12;
1066 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1067 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1069 XFreeFont(disp, xfs);
1071 if (name[0] == '-' || resolve_aliases)
1072 *flags = FONTFLAG_SERVERSIDE;
1074 *flags = FONTFLAG_SERVERALIAS;
1076 return dupstr(name[0] == '-' || resolve_aliases ?
1082 XFreeFont(disp, xfs);
1084 return NULL; /* something went wrong */
1087 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1090 return NULL; /* shan't */
1093 #endif /* NOT_X_WINDOWS */
1095 #if GTK_CHECK_VERSION(2,0,0)
1097 /* ----------------------------------------------------------------------
1098 * Pango font implementation (for GTK 2 only).
1101 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1102 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1105 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1106 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1107 int x, int y, const wchar_t *string, int len,
1108 int wide, int bold, int cellwidth);
1109 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1111 int shadowoffset, int shadowalways);
1112 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1114 int shadowoffset, int shadowalways);
1115 static void pangofont_destroy(unifont *font);
1116 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1117 void *callback_ctx);
1118 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1119 int *size, int *flags,
1120 int resolve_aliases);
1121 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1129 PangoFontDescription *desc;
1132 * The containing widget.
1136 * Data passed in to unifont_create().
1138 int bold, shadowoffset, shadowalways;
1141 static const struct unifont_vtable pangofont_vtable = {
1143 pangofont_create_fallback,
1145 pangofont_has_glyph,
1146 pangofont_draw_text,
1147 pangofont_enum_fonts,
1148 pangofont_canonify_fontname,
1149 pangofont_scale_fontname,
1154 * This function is used to rigorously validate a
1155 * PangoFontDescription. Later versions of Pango have a nasty
1156 * habit of accepting _any_ old string as input to
1157 * pango_font_description_from_string and returning a font
1158 * description which can actually be used to display text, even if
1159 * they have to do it by falling back to their most default font.
1160 * This is doubtless helpful in some situations, but not here,
1161 * because we need to know if a Pango font string actually _makes
1162 * sense_ in order to fall back to treating it as an X font name
1163 * if it doesn't. So we check that the font family is actually one
1164 * supported by Pango.
1166 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1167 PangoFontDescription *desc)
1169 #ifndef PANGO_PRE_1POINT6
1172 PangoFontFamily **families;
1173 int i, nfamilies, matched;
1176 * Ask Pango for a list of font families, and iterate through
1177 * them to see if one of them matches the family in the
1178 * PangoFontDescription.
1180 #ifndef PANGO_PRE_1POINT6
1181 map = pango_context_get_font_map(ctx);
1184 pango_font_map_list_families(map, &families, &nfamilies);
1186 pango_context_list_families(ctx, &families, &nfamilies);
1190 for (i = 0; i < nfamilies; i++) {
1191 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1192 pango_font_description_get_family(desc))) {
1202 static unifont *pangofont_create_internal(GtkWidget *widget,
1204 PangoFontDescription *desc,
1206 int shadowoffset, int shadowalways)
1208 struct pangofont *pfont;
1209 #ifndef PANGO_PRE_1POINT6
1213 PangoFontMetrics *metrics;
1215 #ifndef PANGO_PRE_1POINT6
1216 map = pango_context_get_font_map(ctx);
1218 pango_font_description_free(desc);
1221 fset = pango_font_map_load_fontset(map, ctx, desc,
1222 pango_context_get_language(ctx));
1224 fset = pango_context_load_fontset(ctx, desc,
1225 pango_context_get_language(ctx));
1228 pango_font_description_free(desc);
1231 metrics = pango_fontset_get_metrics(fset);
1233 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1234 pango_font_description_free(desc);
1235 g_object_unref(fset);
1239 pfont = snew(struct pangofont);
1240 pfont->u.vt = &pangofont_vtable;
1242 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1243 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1244 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1245 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1246 pfont->u.want_fallback = FALSE;
1247 #ifdef DRAW_TEXT_CAIRO
1248 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1249 #elif defined DRAW_TEXT_GDK
1250 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1252 #error No drawtype available at all
1254 /* The Pango API is hardwired to UTF-8 */
1255 pfont->u.public_charset = CS_UTF8;
1258 pfont->widget = widget;
1260 pfont->shadowoffset = shadowoffset;
1261 pfont->shadowalways = shadowalways;
1263 pango_font_metrics_unref(metrics);
1265 return (unifont *)pfont;
1268 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1270 int shadowoffset, int shadowalways)
1273 PangoFontDescription *desc;
1275 desc = pango_font_description_from_string(name);
1278 ctx = gtk_widget_get_pango_context(widget);
1280 pango_font_description_free(desc);
1283 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1284 pango_font_description_free(desc);
1287 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1288 shadowoffset, shadowalways);
1291 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1293 int shadowoffset, int shadowalways)
1296 PangoFontDescription *desc;
1298 desc = pango_font_description_from_string("Monospace");
1301 ctx = gtk_widget_get_pango_context(widget);
1303 pango_font_description_free(desc);
1306 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1307 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1308 shadowoffset, shadowalways);
1311 static void pangofont_destroy(unifont *font)
1313 struct pangofont *pfont = (struct pangofont *)font;
1314 pango_font_description_free(pfont->desc);
1315 g_object_unref(pfont->fset);
1319 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1321 /* Pango implements font fallback, so assume it has everything */
1325 #ifdef DRAW_TEXT_GDK
1326 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1327 gint x, gint y, PangoLayout *layout)
1329 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1333 #ifdef DRAW_TEXT_CAIRO
1334 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1335 gint x, gint y, PangoLayout *layout)
1337 cairo_move_to(ctx->u.cairo.cr, x, y);
1338 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1342 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1343 int x, int y, const wchar_t *string, int len,
1344 int wide, int bold, int cellwidth)
1346 struct pangofont *pfont = (struct pangofont *)font;
1347 PangoLayout *layout;
1348 PangoRectangle rect;
1349 char *utfstring, *utfptr;
1351 int shadowbold = FALSE;
1352 void (*draw_layout)(unifont_drawctx *ctx,
1353 gint x, gint y, PangoLayout *layout) = NULL;
1355 #ifdef DRAW_TEXT_GDK
1356 if (ctx->type == DRAWTYPE_GDK) {
1357 draw_layout = pango_gdk_draw_layout;
1360 #ifdef DRAW_TEXT_CAIRO
1361 if (ctx->type == DRAWTYPE_CAIRO) {
1362 draw_layout = pango_cairo_draw_layout;
1369 y -= pfont->u.ascent;
1371 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1372 pango_layout_set_font_description(layout, pfont->desc);
1373 if (bold > pfont->bold) {
1374 if (pfont->shadowalways)
1377 PangoFontDescription *desc2 =
1378 pango_font_description_copy_static(pfont->desc);
1379 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1380 pango_layout_set_font_description(layout, desc2);
1385 * Pango always expects UTF-8, so convert the input wide character
1388 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1389 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1390 utfstring, len*6+1, ".", NULL, NULL);
1393 while (utflen > 0) {
1397 * We want to display every character from this string in
1398 * the centre of its own character cell. In the worst case,
1399 * this requires a separate text-drawing call for each
1400 * character; but in the common case where the font is
1401 * properly fixed-width, we can draw many characters in one
1402 * go which is much faster.
1404 * This still isn't really ideal. If you look at what
1405 * happens in the X protocol as a result of all of this, you
1406 * find - naturally enough - that each call to
1407 * gdk_draw_layout() generates a separate set of X RENDER
1408 * operations involving creating a picture, setting a clip
1409 * rectangle, doing some drawing and undoing the whole lot.
1410 * In an ideal world, we should _always_ be able to turn the
1411 * contents of this loop into a single RenderCompositeGlyphs
1412 * operation which internally specifies inter-character
1413 * deltas to get the spacing right, which would give us full
1414 * speed _even_ in the worst case of a non-fixed-width font.
1415 * However, Pango's architecture and documentation are so
1416 * unhelpful that I have no idea how if at all to persuade
1421 * Start by extracting a single UTF-8 character from the
1425 while (clen < utflen &&
1426 (unsigned char)utfptr[clen] >= 0x80 &&
1427 (unsigned char)utfptr[clen] < 0xC0)
1432 * If it's a right-to-left character, we must display it on
1433 * its own, to stop Pango helpfully re-reversing our already
1436 if (!is_rtl(string[0])) {
1439 * See if that character has the width we expect.
1441 pango_layout_set_text(layout, utfptr, clen);
1442 pango_layout_get_pixel_extents(layout, NULL, &rect);
1444 if (rect.width == cellwidth) {
1446 * Try extracting more characters, for as long as they
1447 * stay well-behaved.
1449 while (clen < utflen) {
1451 clen++; /* skip UTF-8 introducer byte */
1452 while (clen < utflen &&
1453 (unsigned char)utfptr[clen] >= 0x80 &&
1454 (unsigned char)utfptr[clen] < 0xC0)
1457 pango_layout_set_text(layout, utfptr, clen);
1458 pango_layout_get_pixel_extents(layout, NULL, &rect);
1459 if (rect.width != n * cellwidth) {
1468 pango_layout_set_text(layout, utfptr, clen);
1469 pango_layout_get_pixel_extents(layout, NULL, &rect);
1472 x + (n*cellwidth - rect.width)/2,
1473 y + (pfont->u.height - rect.height)/2, layout);
1476 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1477 y + (pfont->u.height - rect.height)/2, layout);
1487 g_object_unref(layout);
1491 * Dummy size value to be used when converting a
1492 * PangoFontDescription of a scalable font to a string for
1495 #define PANGO_DUMMY_SIZE 12
1497 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1501 #ifndef PANGO_PRE_1POINT6
1504 PangoFontFamily **families;
1507 ctx = gtk_widget_get_pango_context(widget);
1512 * Ask Pango for a list of font families, and iterate through
1515 #ifndef PANGO_PRE_1POINT6
1516 map = pango_context_get_font_map(ctx);
1519 pango_font_map_list_families(map, &families, &nfamilies);
1521 pango_context_list_families(ctx, &families, &nfamilies);
1523 for (i = 0; i < nfamilies; i++) {
1524 PangoFontFamily *family = families[i];
1525 const char *familyname;
1527 PangoFontFace **faces;
1531 * Set up our flags for this font family, and get the name
1534 flags = FONTFLAG_CLIENTSIDE;
1535 #ifndef PANGO_PRE_1POINT4
1537 * In very early versions of Pango, we can't tell
1538 * monospaced fonts from non-monospaced.
1540 if (!pango_font_family_is_monospace(family))
1541 flags |= FONTFLAG_NONMONOSPACED;
1543 familyname = pango_font_family_get_name(family);
1546 * Go through the available font faces in this family.
1548 pango_font_family_list_faces(family, &faces, &nfaces);
1549 for (j = 0; j < nfaces; j++) {
1550 PangoFontFace *face = faces[j];
1551 PangoFontDescription *desc;
1552 const char *facename;
1554 int k, nsizes, dummysize;
1557 * Get the face name string.
1559 facename = pango_font_face_get_face_name(face);
1562 * Set up a font description with what we've got so
1563 * far. We'll fill in the size field manually and then
1564 * call pango_font_description_to_string() to give the
1565 * full real name of the specific font.
1567 desc = pango_font_face_describe(face);
1570 * See if this font has a list of specific sizes.
1572 #ifndef PANGO_PRE_1POINT4
1573 pango_font_face_list_sizes(face, &sizes, &nsizes);
1576 * In early versions of Pango, that call wasn't
1577 * supported; we just have to assume everything is
1584 * Write a single entry with a dummy size.
1586 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1592 * If so, go through them one by one.
1594 for (k = 0; k < nsizes; k++) {
1598 pango_font_description_set_size(desc, sizes[k]);
1600 fullname = pango_font_description_to_string(desc);
1603 * Construct the sorting key for font styles.
1609 n = pango_font_description_get_weight(desc);
1610 /* Weight: normal, then lighter, then bolder */
1611 if (n <= PANGO_WEIGHT_NORMAL)
1612 n = PANGO_WEIGHT_NORMAL - n;
1613 p += sprintf(p, "%4d", n);
1615 n = pango_font_description_get_style(desc);
1616 p += sprintf(p, " %2d", n);
1618 n = pango_font_description_get_stretch(desc);
1619 /* Stretch: closer to normal sorts earlier */
1620 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1621 (n < PANGO_STRETCH_NORMAL);
1622 p += sprintf(p, " %2d", n);
1624 n = pango_font_description_get_variant(desc);
1625 p += sprintf(p, " %2d", n);
1630 * Got everything. Hand off to the callback.
1631 * (The charset string is NULL, because only
1632 * server-side X fonts use it.)
1634 callback(callback_ctx, fullname, familyname, NULL, facename,
1636 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1637 flags, &pangofont_vtable);
1641 if (sizes != &dummysize)
1644 pango_font_description_free(desc);
1651 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1652 int *size, int *flags,
1653 int resolve_aliases)
1656 * When given a Pango font name to try to make sense of for a
1657 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1658 * extract its original size (in pixels) into the `size' field.
1661 #ifndef PANGO_PRE_1POINT6
1664 PangoFontDescription *desc;
1666 PangoFontMetrics *metrics;
1667 char *newname, *retname;
1669 desc = pango_font_description_from_string(name);
1672 ctx = gtk_widget_get_pango_context(widget);
1674 pango_font_description_free(desc);
1677 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1678 pango_font_description_free(desc);
1681 #ifndef PANGO_PRE_1POINT6
1682 map = pango_context_get_font_map(ctx);
1684 pango_font_description_free(desc);
1687 fset = pango_font_map_load_fontset(map, ctx, desc,
1688 pango_context_get_language(ctx));
1690 fset = pango_context_load_fontset(ctx, desc,
1691 pango_context_get_language(ctx));
1694 pango_font_description_free(desc);
1697 metrics = pango_fontset_get_metrics(fset);
1699 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1700 pango_font_description_free(desc);
1701 g_object_unref(fset);
1705 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1706 *flags = FONTFLAG_CLIENTSIDE;
1707 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1708 newname = pango_font_description_to_string(desc);
1709 retname = dupstr(newname);
1712 pango_font_metrics_unref(metrics);
1713 pango_font_description_free(desc);
1714 g_object_unref(fset);
1719 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1722 PangoFontDescription *desc;
1723 char *newname, *retname;
1725 desc = pango_font_description_from_string(name);
1728 pango_font_description_set_size(desc, size * PANGO_SCALE);
1729 newname = pango_font_description_to_string(desc);
1730 retname = dupstr(newname);
1732 pango_font_description_free(desc);
1737 #endif /* GTK_CHECK_VERSION(2,0,0) */
1739 /* ----------------------------------------------------------------------
1740 * Outermost functions which do the vtable dispatch.
1744 * Complete list of font-type subclasses. Listed in preference
1745 * order for unifont_create(). (That is, in the extremely unlikely
1746 * event that the same font name is valid as both a Pango and an
1747 * X11 font, it will be interpreted as the former in the absence
1748 * of an explicit type-disambiguating prefix.)
1750 * The 'multifont' subclass is omitted here, as discussed above.
1752 static const struct unifont_vtable *unifont_types[] = {
1753 #if GTK_CHECK_VERSION(2,0,0)
1756 #ifndef NOT_X_WINDOWS
1762 * Function which takes a font name and processes the optional
1763 * scheme prefix. Returns the tail of the font name suitable for
1764 * passing to individual font scheme functions, and also provides
1765 * a subrange of the unifont_types[] array above.
1767 * The return values `start' and `end' denote a half-open interval
1768 * in unifont_types[]; that is, the correct way to iterate over
1771 * for (i = start; i < end; i++) {...}
1773 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1775 int colonpos = strcspn(name, ":");
1778 if (name[colonpos]) {
1780 * There's a colon prefix on the font name. Use it to work
1781 * out which subclass to use.
1783 for (i = 0; i < lenof(unifont_types); i++) {
1784 if (strlen(unifont_types[i]->prefix) == colonpos &&
1785 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1788 return name + colonpos + 1;
1792 * None matched, so return an empty scheme list to prevent
1793 * any scheme from being called at all.
1796 return name + colonpos + 1;
1799 * No colon prefix, so just use all the subclasses.
1802 *end = lenof(unifont_types);
1807 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1808 int bold, int shadowoffset, int shadowalways)
1812 name = unifont_do_prefix(name, &start, &end);
1814 for (i = start; i < end; i++) {
1815 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1816 shadowoffset, shadowalways);
1820 return NULL; /* font not found in any scheme */
1823 void unifont_destroy(unifont *font)
1825 font->vt->destroy(font);
1828 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1829 int x, int y, const wchar_t *string, int len,
1830 int wide, int bold, int cellwidth)
1832 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1835 /* ----------------------------------------------------------------------
1836 * Multiple-font wrapper. This is a type of unifont which encapsulates
1837 * up to two other unifonts, permitting missing glyphs in the main
1838 * font to be filled in by a fallback font.
1840 * This is a type of unifont just like the previous two, but it has a
1841 * separate constructor which is manually called by the client, so it
1842 * doesn't appear in the list of available font types enumerated by
1843 * unifont_create. This means it's not used by unifontsel either, so
1844 * it doesn't need to support any methods except draw_text and
1848 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1849 int x, int y, const wchar_t *string, int len,
1850 int wide, int bold, int cellwidth);
1851 static void multifont_destroy(unifont *font);
1859 static const struct unifont_vtable multifont_vtable = {
1860 NULL, /* creation is done specially */
1864 multifont_draw_text,
1871 unifont *multifont_create(GtkWidget *widget, const char *name,
1873 int shadowoffset, int shadowalways)
1876 unifont *font, *fallback;
1877 struct multifont *mfont;
1879 font = unifont_create(widget, name, wide, bold,
1880 shadowoffset, shadowalways);
1885 if (font->want_fallback) {
1886 for (i = 0; i < lenof(unifont_types); i++) {
1887 if (unifont_types[i]->create_fallback) {
1888 fallback = unifont_types[i]->create_fallback
1889 (widget, font->height, wide, bold,
1890 shadowoffset, shadowalways);
1898 * Construct our multifont. Public members are all copied from the
1899 * primary font we're wrapping.
1901 mfont = snew(struct multifont);
1902 mfont->u.vt = &multifont_vtable;
1903 mfont->u.width = font->width;
1904 mfont->u.ascent = font->ascent;
1905 mfont->u.descent = font->descent;
1906 mfont->u.height = font->height;
1907 mfont->u.public_charset = font->public_charset;
1908 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1909 mfont->u.preferred_drawtype = font->preferred_drawtype;
1911 mfont->fallback = fallback;
1913 return (unifont *)mfont;
1916 static void multifont_destroy(unifont *font)
1918 struct multifont *mfont = (struct multifont *)font;
1919 unifont_destroy(mfont->main);
1920 if (mfont->fallback)
1921 unifont_destroy(mfont->fallback);
1925 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1926 int y, const wchar_t *string, int len,
1927 int wide, int bold, int cellwidth)
1929 struct multifont *mfont = (struct multifont *)font;
1935 * Find a maximal sequence of characters which are, or are
1936 * not, supported by our main font.
1938 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1941 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1947 f = ok ? mfont->main : mfont->fallback;
1949 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1956 #if GTK_CHECK_VERSION(2,0,0)
1958 /* ----------------------------------------------------------------------
1959 * Implementation of a unified font selector. Used on GTK 2 only;
1960 * for GTK 1 we still use the standard font selector.
1963 typedef struct fontinfo fontinfo;
1965 typedef struct unifontsel_internal {
1966 /* This must be the structure's first element, for cross-casting */
1968 GtkListStore *family_model, *style_model, *size_model;
1969 GtkWidget *family_list, *style_list, *size_entry, *size_list;
1970 GtkWidget *filter_buttons[4];
1971 int n_filter_buttons;
1972 GtkWidget *preview_area;
1973 GdkPixmap *preview_pixmap;
1974 int preview_width, preview_height;
1975 GdkColor preview_fg, preview_bg;
1977 tree234 *fonts_by_realname, *fonts_by_selorder;
1979 int selsize, intendedsize;
1980 int inhibit_response; /* inhibit callbacks when we change GUI controls */
1981 } unifontsel_internal;
1984 * The structure held in the tree234s. All the string members are
1985 * part of the same allocated area, so don't need freeing
1990 char *family, *charset, *style, *stylekey;
1993 * Fallback sorting key, to permit multiple identical entries
1994 * to exist in the selorder tree.
1998 * Indices mapping fontinfo structures to indices in the list
1999 * boxes. sizeindex is irrelevant if the font is scalable
2002 int familyindex, styleindex, sizeindex;
2004 * The class of font.
2006 const struct unifont_vtable *fontclass;
2009 struct fontinfo_realname_find {
2010 const char *realname;
2014 static int strnullcasecmp(const char *a, const char *b)
2019 * If exactly one of the inputs is NULL, it compares before
2022 if ((i = (!b) - (!a)) != 0)
2026 * NULL compares equal.
2032 * Otherwise, ordinary strcasecmp.
2034 return g_ascii_strcasecmp(a, b);
2037 static int fontinfo_realname_compare(void *av, void *bv)
2039 fontinfo *a = (fontinfo *)av;
2040 fontinfo *b = (fontinfo *)bv;
2043 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2045 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2046 return ((a->flags & FONTFLAG_SORT_MASK) <
2047 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2051 static int fontinfo_realname_find(void *av, void *bv)
2053 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2054 fontinfo *b = (fontinfo *)bv;
2057 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2059 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2060 return ((a->flags & FONTFLAG_SORT_MASK) <
2061 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2065 static int fontinfo_selorder_compare(void *av, void *bv)
2067 fontinfo *a = (fontinfo *)av;
2068 fontinfo *b = (fontinfo *)bv;
2070 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2073 * Font class comes immediately after family, so that fonts
2074 * from different classes with the same family
2076 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2077 return ((a->flags & FONTFLAG_SORT_MASK) <
2078 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2079 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2081 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2083 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2085 if (a->size != b->size)
2086 return (a->size < b->size ? -1 : +1);
2087 if (a->index != b->index)
2088 return (a->index < b->index ? -1 : +1);
2092 static void unifontsel_deselect(unifontsel_internal *fs)
2094 fs->selected = NULL;
2095 gtk_list_store_clear(fs->style_model);
2096 gtk_list_store_clear(fs->size_model);
2097 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2098 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2101 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2104 int i, listindex, minpos = -1, maxpos = -1;
2105 char *currfamily = NULL;
2109 gtk_list_store_clear(fs->family_model);
2113 * Search through the font tree for anything matching our
2114 * current filter criteria. When we find one, add its font
2115 * name to the list box.
2117 for (i = 0 ;; i++) {
2118 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2120 * info may be NULL if we've just run off the end of the
2121 * tree. We must still do a processing pass in that
2122 * situation, in case we had an unfinished font record in
2125 if (info && (info->flags &~ fs->filter_flags)) {
2126 info->familyindex = -1;
2127 continue; /* we're filtering out this font */
2129 if (!info || strnullcasecmp(currfamily, info->family) ||
2130 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2132 * We've either finished a family, or started a new
2136 gtk_list_store_append(fs->family_model, &iter);
2137 gtk_list_store_set(fs->family_model, &iter,
2138 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2143 currfamily = info->family;
2144 currflags = info->flags & FONTFLAG_SORT_MASK;
2148 break; /* now we're done */
2149 info->familyindex = listindex;
2154 * If we've just filtered out the previously selected font,
2155 * deselect it thoroughly.
2157 if (fs->selected && fs->selected->familyindex < 0)
2158 unifontsel_deselect(fs);
2161 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2165 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2166 char *currcs = NULL, *currstyle = NULL;
2169 gtk_list_store_clear(fs->style_model);
2174 * Search through the font tree for anything matching our
2175 * current filter criteria. When we find one, add its charset
2176 * and/or style name to the list box.
2178 for (i = start; i <= end; i++) {
2182 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2184 * info may be NULL if we've just run off the end of the
2185 * relevant data. We must still do a processing pass in
2186 * that situation, in case we had an unfinished font
2187 * record in progress.
2189 if (info && (info->flags &~ fs->filter_flags)) {
2190 info->styleindex = -1;
2191 continue; /* we're filtering out this font */
2193 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2194 strnullcasecmp(currstyle, info->style)) {
2196 * We've either finished a style/charset, or started a
2201 gtk_list_store_append(fs->style_model, &iter);
2202 gtk_list_store_set(fs->style_model, &iter,
2203 0, currstyle, 1, minpos, 2, maxpos+1,
2209 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2210 gtk_list_store_append(fs->style_model, &iter);
2211 gtk_list_store_set(fs->style_model, &iter,
2212 0, info->charset, 1, -1, 2, -1,
2216 currcs = info->charset;
2217 currstyle = info->style;
2221 break; /* now we're done */
2222 info->styleindex = listindex;
2227 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2229 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2237 gtk_list_store_clear(fs->size_model);
2241 * Search through the font tree for anything matching our
2242 * current filter criteria. When we find one, add its font
2243 * name to the list box.
2245 for (i = start; i < end; i++) {
2246 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2247 if (info->flags &~ fs->filter_flags) {
2248 info->sizeindex = -1;
2249 continue; /* we're filtering out this font */
2252 sprintf(sizetext, "%d", info->size);
2253 info->sizeindex = listindex;
2254 gtk_list_store_append(fs->size_model, &iter);
2255 gtk_list_store_set(fs->size_model, &iter,
2256 0, sizetext, 1, i, 2, info->size, -1);
2264 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2265 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2266 gtk_list_store_append(fs->size_model, &iter);
2267 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2268 2, unifontsel_default_sizes[j], -1);
2275 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2279 for (i = 0; i < fs->n_filter_buttons; i++) {
2280 int flagbit = GPOINTER_TO_INT(g_object_get_data
2281 (G_OBJECT(fs->filter_buttons[i]),
2283 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2284 !!(fs->filter_flags & flagbit));
2288 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2289 unifontsel_internal *fs)
2292 char *sizename = NULL;
2293 fontinfo *info = fs->selected;
2296 sizename = info->fontclass->scale_fontname
2297 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2298 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2299 sizename ? sizename : info->realname,
2300 FALSE, FALSE, 0, 0);
2305 #ifdef DRAW_TEXT_GDK
2306 if (dctx->type == DRAWTYPE_GDK) {
2307 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2308 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2309 fs->preview_width, fs->preview_height);
2310 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2313 #ifdef DRAW_TEXT_CAIRO
2314 if (dctx->type == DRAWTYPE_CAIRO) {
2315 cairo_set_source_rgb(dctx->u.cairo.cr,
2316 fs->preview_bg.red / 65535.0,
2317 fs->preview_bg.green / 65535.0,
2318 fs->preview_bg.blue / 65535.0);
2319 cairo_paint(dctx->u.cairo.cr);
2320 cairo_set_source_rgb(dctx->u.cairo.cr,
2321 fs->preview_fg.red / 65535.0,
2322 fs->preview_fg.green / 65535.0,
2323 fs->preview_fg.blue / 65535.0);
2328 * The pangram used here is rather carefully
2329 * constructed: it contains a sequence of very narrow
2330 * letters (`jil') and a pair of adjacent very wide
2333 * If the user selects a proportional font, it will be
2334 * coerced into fixed-width character cells when used
2335 * in the actual terminal window. We therefore display
2336 * it the same way in the preview pane, so as to show
2337 * it the way it will actually be displayed - and we
2338 * deliberately pick a pangram which will show the
2339 * resulting miskerning at its worst.
2341 * We aren't trying to sell people these fonts; we're
2342 * trying to let them make an informed choice. Better
2343 * that they find out the problems with using
2344 * proportional fonts in terminal windows here than
2345 * that they go to the effort of selecting their font
2346 * and _then_ realise it was a mistake.
2348 info->fontclass->draw_text(dctx, font,
2350 L"bankrupt jilted showmen quiz convex fogey",
2351 41, FALSE, FALSE, font->width);
2352 info->fontclass->draw_text(dctx, font,
2353 0, font->ascent + font->height,
2354 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2355 41, FALSE, FALSE, font->width);
2357 * The ordering of punctuation here is also selected
2358 * with some specific aims in mind. I put ` and '
2359 * together because some software (and people) still
2360 * use them as matched quotes no matter what Unicode
2361 * might say on the matter, so people can quickly
2362 * check whether they look silly in a candidate font.
2363 * The sequence #_@ is there to let people judge the
2364 * suitability of the underscore as an effectively
2365 * alphabetic character (since that's how it's often
2366 * used in practice, at least by programmers).
2368 info->fontclass->draw_text(dctx, font,
2369 0, font->ascent + font->height * 2,
2370 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2371 42, FALSE, FALSE, font->width);
2373 info->fontclass->destroy(font);
2379 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2381 unifont_drawctx dctx;
2383 if (!fs->preview_pixmap)
2386 dctx.type = DRAWTYPE_DEFAULT;
2387 #ifdef DRAW_TEXT_GDK
2388 if (dctx.type == DRAWTYPE_GDK) {
2389 dctx.u.gdk.target = fs->preview_pixmap;
2390 dctx.u.gdk.gc = gdk_gc_new(fs->preview_pixmap);
2393 #ifdef DRAW_TEXT_CAIRO
2394 if (dctx.type == DRAWTYPE_CAIRO) {
2395 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2396 dctx.u.cairo.cr = gdk_cairo_create(fs->preview_pixmap);
2400 unifontsel_draw_preview_text_inner(&dctx, fs);
2402 #ifdef DRAW_TEXT_GDK
2403 if (dctx.type == DRAWTYPE_GDK) {
2404 gdk_gc_unref(dctx.u.gdk.gc);
2407 #ifdef DRAW_TEXT_CAIRO
2408 if (dctx.type == DRAWTYPE_CAIRO) {
2409 cairo_destroy(dctx.u.cairo.cr);
2413 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2417 static void unifontsel_select_font(unifontsel_internal *fs,
2418 fontinfo *info, int size, int leftlist,
2419 int size_is_explicit)
2423 GtkTreePath *treepath;
2426 fs->inhibit_response = TRUE;
2428 fs->selected = info;
2430 if (size_is_explicit)
2431 fs->intendedsize = size;
2433 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2436 * Find the index of this fontinfo in the selorder list.
2439 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2443 * Adjust the font selector flags and redo the font family
2444 * list box, if necessary.
2446 if (leftlist <= 0 &&
2447 (fs->filter_flags | info->flags) != fs->filter_flags) {
2448 fs->filter_flags |= info->flags;
2449 unifontsel_set_filter_buttons(fs);
2450 unifontsel_setup_familylist(fs);
2454 * Find the appropriate family name and select it in the list.
2456 assert(info->familyindex >= 0);
2457 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2458 gtk_tree_selection_select_path
2459 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2461 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2462 treepath, NULL, FALSE, 0.0, 0.0);
2463 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, treepath);
2464 gtk_tree_path_free(treepath);
2467 * Now set up the font style list.
2469 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2470 1, &minval, 2, &maxval, -1);
2472 unifontsel_setup_stylelist(fs, minval, maxval);
2475 * Find the appropriate style name and select it in the list.
2478 assert(info->styleindex >= 0);
2479 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2480 gtk_tree_selection_select_path
2481 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2483 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2484 treepath, NULL, FALSE, 0.0, 0.0);
2485 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2487 gtk_tree_path_free(treepath);
2490 * And set up the size list.
2492 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2493 1, &minval, 2, &maxval, -1);
2495 unifontsel_setup_sizelist(fs, minval, maxval);
2498 * Find the appropriate size, and select it in the list.
2501 assert(info->sizeindex >= 0);
2502 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2503 gtk_tree_selection_select_path
2504 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2506 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2507 treepath, NULL, FALSE, 0.0, 0.0);
2508 gtk_tree_path_free(treepath);
2512 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2513 if (unifontsel_default_sizes[j] == size) {
2514 treepath = gtk_tree_path_new_from_indices(j, -1);
2515 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2516 treepath, NULL, FALSE);
2517 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2518 treepath, NULL, FALSE, 0.0,
2520 gtk_tree_path_free(treepath);
2525 * And set up the font size text entry box.
2529 sprintf(sizetext, "%d", size);
2530 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2534 unifontsel_setup_sizelist(fs, 0, 0);
2535 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2539 * Grey out the font size edit box if we're not using a
2542 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2543 fs->selected->size == 0);
2544 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2546 unifontsel_draw_preview_text(fs);
2548 fs->inhibit_response = FALSE;
2551 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2553 unifontsel_internal *fs = (unifontsel_internal *)data;
2554 int newstate = gtk_toggle_button_get_active(tb);
2556 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2560 newflags = fs->filter_flags | flagbit;
2562 newflags = fs->filter_flags & ~flagbit;
2564 if (fs->filter_flags != newflags) {
2565 fs->filter_flags = newflags;
2566 unifontsel_setup_familylist(fs);
2570 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2571 const char *family, const char *charset,
2572 const char *style, const char *stylekey,
2573 int size, int flags,
2574 const struct unifont_vtable *fontclass)
2576 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2581 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2582 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2583 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2584 info = (fontinfo *)smalloc(totalsize);
2585 info->fontclass = fontclass;
2586 p = (char *)info + sizeof(fontinfo);
2588 strcpy(p, realfontname);
2595 info->family = NULL;
2601 info->charset = NULL;
2610 strcpy(p, stylekey);
2613 info->stylekey = NULL;
2614 assert(p - (char *)info <= totalsize);
2616 info->flags = flags;
2617 info->index = count234(fs->fonts_by_selorder);
2620 * It's just conceivable that a misbehaving font enumerator
2621 * might tell us about the same font real name more than once,
2622 * in which case we should silently drop the new one.
2624 if (add234(fs->fonts_by_realname, info) != info) {
2629 * However, we should never get a duplicate key in the
2630 * selorder tree, because the index field carefully
2631 * disambiguates otherwise identical records.
2633 add234(fs->fonts_by_selorder, info);
2636 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2639 fontinfo info2, *below, *above;
2643 * Copy the info structure. This doesn't copy its dynamic
2644 * string fields, but that's unimportant because all we're
2645 * going to do is to adjust the size field and use it in one
2649 info2.size = fs->intendedsize;
2652 * Search in the tree to find the fontinfo structure which
2653 * best approximates the size the user last requested.
2655 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2659 above = index234(fs->fonts_by_selorder, pos+1);
2662 * See if we've found it exactly, which is an easy special
2663 * case. If we have, it'll be in `below' and not `above',
2664 * because we did a REL234_LE rather than REL234_LT search.
2666 if (below && !fontinfo_selorder_compare(&info2, below))
2670 * Now we've either found two suitable fonts, one smaller and
2671 * one larger, or we're at one or other extreme end of the
2672 * scale. Find out which, by NULLing out either of below and
2673 * above if it differs from this one in any respect but size
2674 * (and the disambiguating index field). Bear in mind, also,
2675 * that either one might _already_ be NULL if we're at the
2676 * extreme ends of the font list.
2679 info2.size = below->size;
2680 info2.index = below->index;
2681 if (fontinfo_selorder_compare(&info2, below))
2685 info2.size = above->size;
2686 info2.index = above->index;
2687 if (fontinfo_selorder_compare(&info2, above))
2692 * Now return whichever of above and below is non-NULL, if
2693 * that's unambiguous.
2701 * And now we really do have to make a choice about whether to
2702 * round up or down. We'll do it by rounding to nearest,
2703 * breaking ties by rounding up.
2705 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2711 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2713 unifontsel_internal *fs = (unifontsel_internal *)data;
2714 GtkTreeModel *treemodel;
2715 GtkTreeIter treeiter;
2719 if (fs->inhibit_response) /* we made this change ourselves */
2722 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2725 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2726 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2727 info = update_for_intended_size(fs, info);
2729 return; /* _shouldn't_ happen unless font list is completely funted */
2731 fs->selsize = fs->intendedsize; /* font is scalable */
2732 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2736 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2738 unifontsel_internal *fs = (unifontsel_internal *)data;
2739 GtkTreeModel *treemodel;
2740 GtkTreeIter treeiter;
2744 if (fs->inhibit_response) /* we made this change ourselves */
2747 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2750 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2752 return; /* somehow a charset heading got clicked */
2753 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2754 info = update_for_intended_size(fs, info);
2756 return; /* _shouldn't_ happen unless font list is completely funted */
2758 fs->selsize = fs->intendedsize; /* font is scalable */
2759 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2763 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2765 unifontsel_internal *fs = (unifontsel_internal *)data;
2766 GtkTreeModel *treemodel;
2767 GtkTreeIter treeiter;
2771 if (fs->inhibit_response) /* we made this change ourselves */
2774 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2777 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2778 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2779 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2782 static void size_entry_changed(GtkEditable *ed, gpointer data)
2784 unifontsel_internal *fs = (unifontsel_internal *)data;
2788 if (fs->inhibit_response) /* we made this change ourselves */
2791 text = gtk_entry_get_text(GTK_ENTRY(ed));
2795 assert(fs->selected->size == 0);
2796 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2800 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2801 GtkTreeViewColumn *column, gpointer data)
2803 unifontsel_internal *fs = (unifontsel_internal *)data;
2805 int minval, newsize;
2806 fontinfo *info, *newinfo;
2809 if (fs->inhibit_response) /* we made this change ourselves */
2812 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2813 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2814 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2817 struct fontinfo_realname_find f;
2819 newname = info->fontclass->canonify_fontname
2820 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2822 f.realname = newname;
2824 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2828 return; /* font name not in our index */
2829 if (newinfo == info)
2830 return; /* didn't change under canonification => not an alias */
2831 unifontsel_select_font(fs, newinfo,
2832 newinfo->size ? newinfo->size : newsize,
2837 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2840 unifontsel_internal *fs = (unifontsel_internal *)data;
2842 if (fs->preview_pixmap) {
2843 gdk_draw_pixmap(gtk_widget_get_window(widget),
2844 (gtk_widget_get_style(widget)->fg_gc
2845 [gtk_widget_get_state(widget)]),
2847 event->area.x, event->area.y,
2848 event->area.x, event->area.y,
2849 event->area.width, event->area.height);
2854 static gint unifontsel_configure_area(GtkWidget *widget,
2855 GdkEventConfigure *event, gpointer data)
2857 unifontsel_internal *fs = (unifontsel_internal *)data;
2858 int ox, oy, nx, ny, x, y;
2861 * Enlarge the pixmap, but never shrink it.
2863 ox = fs->preview_width;
2864 oy = fs->preview_height;
2867 if (x > ox || y > oy) {
2868 if (fs->preview_pixmap)
2869 gdk_pixmap_unref(fs->preview_pixmap);
2871 nx = (x > ox ? x : ox);
2872 ny = (y > oy ? y : oy);
2873 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2875 fs->preview_width = nx;
2876 fs->preview_height = ny;
2878 unifontsel_draw_preview_text(fs);
2881 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
2886 unifontsel *unifontsel_new(const char *wintitle)
2888 unifontsel_internal *fs = snew(unifontsel_internal);
2889 GtkWidget *table, *label, *w, *ww, *scroll;
2890 GtkListStore *model;
2891 GtkTreeViewColumn *column;
2892 int lists_height, preview_height, font_width, style_width, size_width;
2895 fs->inhibit_response = FALSE;
2896 fs->selected = NULL;
2900 * Invent some magic size constants.
2903 label = gtk_label_new("Quite Long Font Name (Foundry)");
2904 gtk_widget_size_request(label, &req);
2905 font_width = req.width;
2906 lists_height = 14 * req.height;
2907 preview_height = 5 * req.height;
2908 gtk_label_set_text(GTK_LABEL(label), "Italic Extra Condensed");
2909 gtk_widget_size_request(label, &req);
2910 style_width = req.width;
2911 gtk_label_set_text(GTK_LABEL(label), "48000");
2912 gtk_widget_size_request(label, &req);
2913 size_width = req.width;
2914 g_object_ref_sink(G_OBJECT(label));
2915 #if GTK_CHECK_VERSION(2,10,0)
2916 g_object_unref(label);
2921 * Create the dialog box and initialise the user-visible
2922 * fields in the returned structure.
2924 fs->u.user_data = NULL;
2925 fs->u.window = GTK_WINDOW(gtk_dialog_new());
2926 gtk_window_set_title(fs->u.window, wintitle);
2927 fs->u.cancel_button = gtk_dialog_add_button
2928 (GTK_DIALOG(fs->u.window), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
2929 fs->u.ok_button = gtk_dialog_add_button
2930 (GTK_DIALOG(fs->u.window), GTK_STOCK_OK, GTK_RESPONSE_OK);
2931 gtk_widget_grab_default(fs->u.ok_button);
2934 * Now set up the internal fields, including in particular all
2935 * the controls that actually allow the user to select fonts.
2937 table = gtk_table_new(8, 3, FALSE);
2938 gtk_widget_show(table);
2939 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
2940 #if GTK_CHECK_VERSION(2,4,0)
2941 /* GtkAlignment seems to be the simplest way to put padding round things */
2942 w = gtk_alignment_new(0, 0, 1, 1);
2943 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2944 gtk_container_add(GTK_CONTAINER(w), table);
2949 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
2950 (GTK_DIALOG(fs->u.window))),
2953 label = gtk_label_new_with_mnemonic("_Font:");
2954 gtk_widget_show(label);
2955 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2956 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
2959 * The Font list box displays only a string, but additionally
2960 * stores two integers which give the limits within the
2961 * tree234 of the font entries covered by this list entry.
2963 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2964 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2965 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2966 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2968 column = gtk_tree_view_column_new_with_attributes
2969 ("Font", gtk_cell_renderer_text_new(),
2970 "text", 0, (char *)NULL);
2971 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2972 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2973 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2974 "changed", G_CALLBACK(family_changed), fs);
2975 g_signal_connect(G_OBJECT(w), "row-activated",
2976 G_CALLBACK(alias_resolve), fs);
2978 scroll = gtk_scrolled_window_new(NULL, NULL);
2979 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
2981 gtk_container_add(GTK_CONTAINER(scroll), w);
2982 gtk_widget_show(scroll);
2983 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2984 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
2985 gtk_widget_set_size_request(scroll, font_width, lists_height);
2986 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
2987 GTK_EXPAND | GTK_FILL, 0, 0);
2988 fs->family_model = model;
2989 fs->family_list = w;
2991 label = gtk_label_new_with_mnemonic("_Style:");
2992 gtk_widget_show(label);
2993 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2994 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
2997 * The Style list box can contain insensitive elements
2998 * (character set headings for server-side fonts), so we add
2999 * an extra column to the list store to hold that information.
3001 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3003 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3004 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3005 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3007 column = gtk_tree_view_column_new_with_attributes
3008 ("Style", gtk_cell_renderer_text_new(),
3009 "text", 0, "sensitive", 3, (char *)NULL);
3010 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3011 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3012 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3013 "changed", G_CALLBACK(style_changed), fs);
3015 scroll = gtk_scrolled_window_new(NULL, NULL);
3016 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3018 gtk_container_add(GTK_CONTAINER(scroll), w);
3019 gtk_widget_show(scroll);
3020 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3021 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3022 gtk_widget_set_size_request(scroll, style_width, lists_height);
3023 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3024 GTK_EXPAND | GTK_FILL, 0, 0);
3025 fs->style_model = model;
3028 label = gtk_label_new_with_mnemonic("Si_ze:");
3029 gtk_widget_show(label);
3030 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3031 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3034 * The Size label attaches primarily to a text input box so
3035 * that the user can select a size of their choice. The list
3036 * of available sizes is secondary.
3038 fs->size_entry = w = gtk_entry_new();
3039 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3040 gtk_widget_set_size_request(w, size_width, -1);
3042 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3043 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3046 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3047 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3048 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3050 column = gtk_tree_view_column_new_with_attributes
3051 ("Size", gtk_cell_renderer_text_new(),
3052 "text", 0, (char *)NULL);
3053 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3054 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3055 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3056 "changed", G_CALLBACK(size_changed), fs);
3058 scroll = gtk_scrolled_window_new(NULL, NULL);
3059 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3061 gtk_container_add(GTK_CONTAINER(scroll), w);
3062 gtk_widget_show(scroll);
3063 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3064 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3065 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3066 GTK_EXPAND | GTK_FILL, 0, 0);
3067 fs->size_model = model;
3073 fs->preview_area = gtk_drawing_area_new();
3074 fs->preview_pixmap = NULL;
3075 fs->preview_width = 0;
3076 fs->preview_height = 0;
3077 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3078 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3079 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3080 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3082 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3084 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3085 G_CALLBACK(unifontsel_expose_area), fs);
3086 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3087 G_CALLBACK(unifontsel_configure_area), fs);
3088 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3089 gtk_widget_show(fs->preview_area);
3090 ww = fs->preview_area;
3091 w = gtk_frame_new(NULL);
3092 gtk_container_add(GTK_CONTAINER(w), ww);
3094 #if GTK_CHECK_VERSION(2,4,0)
3096 /* GtkAlignment seems to be the simplest way to put padding round things */
3097 w = gtk_alignment_new(0, 0, 1, 1);
3098 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3099 gtk_container_add(GTK_CONTAINER(w), ww);
3103 w = gtk_frame_new("Preview of font");
3104 gtk_container_add(GTK_CONTAINER(w), ww);
3106 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3107 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3110 * We only provide the checkboxes for client- and server-side
3111 * fonts if we have the X11 back end available, because that's the
3112 * only situation in which more than one class of font is
3115 fs->n_filter_buttons = 0;
3116 #ifndef NOT_X_WINDOWS
3117 w = gtk_check_button_new_with_label("Show client-side fonts");
3118 g_object_set_data(G_OBJECT(w), "user-data",
3119 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3120 g_signal_connect(G_OBJECT(w), "toggled",
3121 G_CALLBACK(unifontsel_button_toggled), fs);
3123 fs->filter_buttons[fs->n_filter_buttons++] = w;
3124 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3125 w = gtk_check_button_new_with_label("Show server-side fonts");
3126 g_object_set_data(G_OBJECT(w), "user-data",
3127 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3128 g_signal_connect(G_OBJECT(w), "toggled",
3129 G_CALLBACK(unifontsel_button_toggled), fs);
3131 fs->filter_buttons[fs->n_filter_buttons++] = w;
3132 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3133 w = gtk_check_button_new_with_label("Show server-side font aliases");
3134 g_object_set_data(G_OBJECT(w), "user-data",
3135 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3136 g_signal_connect(G_OBJECT(w), "toggled",
3137 G_CALLBACK(unifontsel_button_toggled), fs);
3139 fs->filter_buttons[fs->n_filter_buttons++] = w;
3140 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3142 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3143 g_object_set_data(G_OBJECT(w), "user-data",
3144 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3145 g_signal_connect(G_OBJECT(w), "toggled",
3146 G_CALLBACK(unifontsel_button_toggled), fs);
3148 fs->filter_buttons[fs->n_filter_buttons++] = w;
3149 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3151 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3152 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3153 FONTFLAG_SERVERALIAS;
3154 unifontsel_set_filter_buttons(fs);
3157 * Go and find all the font names, and set up our master font
3160 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3161 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3162 for (i = 0; i < lenof(unifont_types); i++)
3163 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3164 unifontsel_add_entry, fs);
3167 * And set up the initial font names list.
3169 unifontsel_setup_familylist(fs);
3171 fs->selsize = fs->intendedsize = 13; /* random default */
3172 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3174 return (unifontsel *)fs;
3177 void unifontsel_destroy(unifontsel *fontsel)
3179 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3182 if (fs->preview_pixmap)
3183 gdk_pixmap_unref(fs->preview_pixmap);
3185 freetree234(fs->fonts_by_selorder);
3186 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3188 freetree234(fs->fonts_by_realname);
3190 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3194 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3196 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3197 int i, start, end, size, flags;
3198 const char *fontname2 = NULL;
3202 * Provide a default if given an empty or null font name.
3204 if (!fontname || !*fontname)
3205 fontname = "server:fixed";
3208 * Call the canonify_fontname function.
3210 fontname = unifont_do_prefix(fontname, &start, &end);
3211 for (i = start; i < end; i++) {
3212 fontname2 = unifont_types[i]->canonify_fontname
3213 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3218 return; /* font name not recognised */
3221 * Now look up the canonified font name in our index.
3224 struct fontinfo_realname_find f;
3225 f.realname = fontname2;
3227 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3231 * If we've found the font, and its size field is either
3232 * correct or zero (the latter indicating a scalable font),
3233 * then we're done. Otherwise, try looking up the original
3234 * font name instead.
3236 if (!info || (info->size != size && info->size != 0)) {
3237 struct fontinfo_realname_find f;
3238 f.realname = fontname;
3241 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3242 if (!info || info->size != size)
3243 return; /* font name not in our index */
3247 * Now we've got a fontinfo structure and a font size, so we
3248 * know everything we need to fill in all the fields in the
3251 unifontsel_select_font(fs, info, size, 0, TRUE);
3254 char *unifontsel_get_name(unifontsel *fontsel)
3256 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3262 if (fs->selected->size == 0) {
3263 name = fs->selected->fontclass->scale_fontname
3264 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3266 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3273 return dupcat(fs->selected->fontclass->prefix, ":",
3274 fs->selected->realname, NULL);
3277 #endif /* GTK_CHECK_VERSION(2,0,0) */