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
17 #if !GTK_CHECK_VERSION(3,0,0)
18 #include <gdk/gdkkeysyms.h>
21 #define MAY_REFER_TO_GTK_IN_HEADERS
25 #include "gtkcompat.h"
32 #include <X11/Xutil.h>
33 #include <X11/Xatom.h>
39 * - it would be nice to have a display of the current font name,
40 * and in particular whether it's client- or server-side,
41 * during the progress of the font selector.
44 #if !GLIB_CHECK_VERSION(1,3,7)
45 #define g_ascii_strcasecmp g_strcasecmp
46 #define g_ascii_strncasecmp g_strncasecmp
50 * Ad-hoc vtable mechanism to allow font structures to be
53 * Any instance of `unifont' used in the vtable functions will
54 * actually be the first element of a larger structure containing
55 * data specific to the subtype. This is permitted by the ISO C
56 * provision that one may safely cast between a pointer to a
57 * structure and a pointer to its first element.
60 #define FONTFLAG_CLIENTSIDE 0x0001
61 #define FONTFLAG_SERVERSIDE 0x0002
62 #define FONTFLAG_SERVERALIAS 0x0004
63 #define FONTFLAG_NONMONOSPACED 0x0008
65 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
67 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
68 const char *family, const char *charset,
69 const char *style, const char *stylekey,
71 const struct unifont_vtable *fontclass);
73 struct unifont_vtable {
75 * `Methods' of the `class'.
77 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
78 int shadowoffset, int shadowalways);
79 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
80 int bold, int shadowoffset, int shadowalways);
81 void (*destroy)(unifont *font);
82 int (*has_glyph)(unifont *font, wchar_t glyph);
83 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
84 int x, int y, const wchar_t *string, int len,
85 int wide, int bold, int cellwidth);
86 void (*draw_combining)(unifont_drawctx *ctx, unifont *font,
87 int x, int y, const wchar_t *string, int len,
88 int wide, int bold, int cellwidth);
89 void (*enum_fonts)(GtkWidget *widget,
90 fontsel_add_entry callback, void *callback_ctx);
91 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
92 int *flags, int resolve_aliases);
93 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
94 char *(*size_increment)(unifont *font, int increment);
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 void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
115 int x, int y, const wchar_t *string,
116 int len, int wide, int bold, int cellwidth);
117 static unifont *x11font_create(GtkWidget *widget, const char *name,
119 int shadowoffset, int shadowalways);
120 static void x11font_destroy(unifont *font);
121 static void x11font_enum_fonts(GtkWidget *widget,
122 fontsel_add_entry callback, void *callback_ctx);
123 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
124 int *size, int *flags,
125 int resolve_aliases);
126 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
128 static char *x11font_size_increment(unifont *font, int increment);
130 #ifdef DRAW_TEXT_CAIRO
131 struct cairo_cached_glyph {
132 cairo_surface_t *surface;
133 unsigned char *bitmap;
138 * Structure storing a single physical XFontStruct, plus associated
141 typedef struct x11font_individual {
142 /* The XFontStruct itself. */
146 * The `allocated' flag indicates whether we've tried to fetch
147 * this subfont already (thus distinguishing xfs==NULL because we
148 * haven't tried yet from xfs==NULL because we tried and failed,
149 * so that we don't keep trying and failing subsequently).
153 #ifdef DRAW_TEXT_CAIRO
155 * A cache of glyph bitmaps downloaded from the X server when
156 * we're in Cairo rendering mode. If glyphcache itself is
157 * non-NULL, then entries in [0,nglyphs) are expected to be
158 * initialised to either NULL or a bitmap pointer.
160 struct cairo_cached_glyph *glyphcache;
164 * X server paraphernalia for actually downloading the glyphs.
168 int pixwidth, pixheight, pixoriginx, pixoriginy;
171 * Paraphernalia for loading the resulting bitmaps into Cairo.
173 int rowsize, allsize, indexflip;
176 } x11font_individual;
181 * Individual physical X fonts. We store a number of these, for
182 * automatically guessed bold and wide variants.
184 x11font_individual fonts[4];
186 * `sixteen_bit' is true iff the font object is indexed by
187 * values larger than a byte. That is, this flag tells us
188 * whether we use XDrawString or XDrawString16, etc.
192 * `variable' is true iff the font is non-fixed-pitch. This
193 * enables some code which takes greater care over character
194 * positioning during text drawing.
198 * real_charset is the charset used when translating text into the
199 * font's internal encoding inside draw_text(). This need not be
200 * the same as the public_charset provided to the client; for
201 * example, public_charset might be CS_ISO8859_1 while
202 * real_charset is CS_ISO8859_1_X11.
206 * Data passed in to unifont_create().
208 int wide, bold, shadowoffset, shadowalways;
211 static const struct unifont_vtable x11font_vtable = {
213 NULL, /* no fallback fonts in X11 */
217 x11font_draw_combining,
219 x11font_canonify_fontname,
220 x11font_scale_fontname,
221 x11font_size_increment,
225 #define XLFD_STRING_PARTS_LIST(S,I) \
238 S(charset_registry) \
239 S(charset_encoding) \
242 /* Special value for int fields that xlfd_recompose will render as "*" */
243 #define XLFD_INT_WILDCARD INT_MIN
245 struct xlfd_decomposed {
246 #define STR_FIELD(f) const char *f;
247 #define INT_FIELD(f) int f;
248 XLFD_STRING_PARTS_LIST(STR_FIELD, INT_FIELD)
253 static struct xlfd_decomposed *xlfd_decompose(const char *xlfd)
256 char *p, *components[14];
257 struct xlfd_decomposed *dec;
263 mem = smalloc(sizeof(struct xlfd_decomposed) + strlen(xlfd) + 1);
264 p = ((char *)mem) + sizeof(struct xlfd_decomposed);
266 dec = (struct xlfd_decomposed *)mem;
268 for (i = 0; i < 14; i++) {
270 /* Malformed XLFD: not enough '-' */
276 p += strcspn(p, "-");
279 /* Malformed XLFD: too many '-' */
285 #define STORE_STR(f) dec->f = components[i++];
286 #define STORE_INT(f) dec->f = atoi(components[i++]);
287 XLFD_STRING_PARTS_LIST(STORE_STR, STORE_INT)
294 static char *xlfd_recompose(const struct xlfd_decomposed *dec)
296 #define FMT_STR(f) "-%s"
297 #define ARG_STR(f) , dec->f
298 #define FMT_INT(f) "%s%.*d"
300 , dec->f == XLFD_INT_WILDCARD ? "-*" : "-" \
301 , dec->f == XLFD_INT_WILDCARD ? 0 : 1 \
302 , dec->f == XLFD_INT_WILDCARD ? 0 : dec->f
303 return dupprintf(XLFD_STRING_PARTS_LIST(FMT_STR, FMT_INT)
304 XLFD_STRING_PARTS_LIST(ARG_STR, ARG_INT));
311 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
313 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
314 Atom fontprop = XInternAtom(disp, "FONT", False);
316 if (XGetFontProperty(xfs, fontprop, &ret)) {
317 char *name = XGetAtomName(disp, (Atom)ret);
318 struct xlfd_decomposed *xlfd = xlfd_decompose(name);
323 xlfd->weight_name = "bold";
326 /* Width name obviously may have changed. */
327 /* Additional style may now become e.g. `ja' or `ko'. */
328 xlfd->setwidth_name = xlfd->add_style_name = "*";
330 /* Expect to double the average width. */
331 xlfd->average_width *= 2;
335 char *ret = xlfd_recompose(xlfd);
343 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
349 return XTextWidth16(xfs, &space, 1);
351 return XTextWidth(xfs, "0", 1);
355 static const XCharStruct *x11_char_struct(XFontStruct *xfs,
356 int byte1, int byte2)
361 * The man page for XQueryFont is rather confusing about how the
362 * per_char array in the XFontStruct is laid out, because it gives
363 * formulae for determining the two-byte X character code _from_
364 * an index into the per_char array. Going the other way, it's
367 * The valid character codes have byte1 between min_byte1 and
368 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
369 * max_char_or_byte2 inclusive. This gives a rectangle of size
370 * (max_byte2-min_byte1+1) by
371 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
372 * rectangle encoded in the per_char array. Hence, given a
373 * character code which is valid in the sense that it falls
374 * somewhere in that rectangle, its index in per_char is given by
377 * x = byte2 - min_char_or_byte2
378 * y = byte1 - min_byte1
379 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
381 * If min_byte1 and min_byte2 are both zero, that's a special case
382 * which can be treated as if min_byte2 was 1 instead, i.e. the
383 * per_char array just runs from min_char_or_byte2 to
384 * max_char_or_byte2 inclusive, and byte1 should always be zero.
387 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
390 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
391 index = byte2 - xfs->min_char_or_byte2;
393 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
395 index = ((byte2 - xfs->min_char_or_byte2) +
396 ((byte1 - xfs->min_byte1) *
397 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
400 if (!xfs->per_char) /* per_char NULL => everything in range exists */
401 return &xfs->max_bounds;
403 return &xfs->per_char[index];
406 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
409 * Not to be confused with x11font_has_glyph, which is a method of
410 * the x11font 'class' and hence takes a unifont as argument. This
411 * is the low-level function which grubs about in an actual
412 * XFontStruct to see if a given glyph exists.
414 * We must do this ourselves rather than letting Xlib's
415 * XTextExtents16 do the job, because XTextExtents will helpfully
416 * substitute the font's default_char for any missing glyph and
417 * not tell us it did so, which precisely won't help us find out
418 * which glyphs _are_ missing.
420 const XCharStruct *xcs = x11_char_struct(xfs, byte1, byte2);
421 return xcs && (xcs->ascent + xcs->descent > 0 || xcs->width > 0);
424 static unifont *x11font_create(GtkWidget *widget, const char *name,
426 int shadowoffset, int shadowalways)
428 struct x11font *xfont;
430 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
431 Atom charset_registry, charset_encoding, spacing;
432 unsigned long registry_ret, encoding_ret, spacing_ret;
433 int pubcs, realcs, sixteen_bit, variable;
436 xfs = XLoadQueryFont(disp, name);
440 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
441 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
443 pubcs = realcs = CS_NONE;
447 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
448 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
450 reg = XGetAtomName(disp, (Atom)registry_ret);
451 enc = XGetAtomName(disp, (Atom)encoding_ret);
453 char *encoding = dupcat(reg, "-", enc, NULL);
454 pubcs = realcs = charset_from_xenc(encoding);
457 * iso10646-1 is the only wide font encoding we
458 * support. In this case, we expect clients to give us
459 * UTF-8, which this module must internally convert
460 * into 16-bit Unicode.
462 if (!strcasecmp(encoding, "iso10646-1")) {
464 pubcs = realcs = CS_UTF8;
468 * Hack for X line-drawing characters: if the primary font
469 * is encoded as ISO-8859-1, and has valid glyphs in the
470 * low character positions, it is assumed that those
471 * glyphs are the VT100 line-drawing character set.
473 if (pubcs == CS_ISO8859_1) {
475 for (ch = 1; ch < 32; ch++)
476 if (!x11_font_has_glyph(xfs, 0, ch))
479 realcs = CS_ISO8859_1_X11;
486 spacing = XInternAtom(disp, "SPACING", False);
487 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
489 spc = XGetAtomName(disp, (Atom)spacing_ret);
491 if (spc && strchr("CcMm", spc[0]))
495 xfont = snew(struct x11font);
496 xfont->u.vt = &x11font_vtable;
497 xfont->u.width = x11_font_width(xfs, sixteen_bit);
498 xfont->u.ascent = xfs->ascent;
499 xfont->u.descent = xfs->descent;
500 xfont->u.height = xfont->u.ascent + xfont->u.descent;
501 xfont->u.public_charset = pubcs;
502 xfont->u.want_fallback = TRUE;
504 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
505 #elif defined DRAW_TEXT_CAIRO
506 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
508 #error No drawtype available at all
510 xfont->real_charset = realcs;
511 xfont->sixteen_bit = sixteen_bit;
512 xfont->variable = variable;
515 xfont->shadowoffset = shadowoffset;
516 xfont->shadowalways = shadowalways;
518 for (i = 0; i < lenof(xfont->fonts); i++) {
519 xfont->fonts[i].xfs = NULL;
520 xfont->fonts[i].allocated = FALSE;
521 #ifdef DRAW_TEXT_CAIRO
522 xfont->fonts[i].glyphcache = NULL;
523 xfont->fonts[i].nglyphs = 0;
524 xfont->fonts[i].pixmap = None;
525 xfont->fonts[i].gc = None;
528 xfont->fonts[0].xfs = xfs;
529 xfont->fonts[0].allocated = TRUE;
531 return (unifont *)xfont;
534 static void x11font_destroy(unifont *font)
536 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
537 struct x11font *xfont = (struct x11font *)font;
540 for (i = 0; i < lenof(xfont->fonts); i++) {
541 if (xfont->fonts[i].xfs)
542 XFreeFont(disp, xfont->fonts[i].xfs);
543 #ifdef DRAW_TEXT_CAIRO
544 if (xfont->fonts[i].gc != None)
545 XFreeGC(disp, xfont->fonts[i].gc);
546 if (xfont->fonts[i].pixmap != None)
547 XFreePixmap(disp, xfont->fonts[i].pixmap);
548 if (xfont->fonts[i].glyphcache) {
550 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
551 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
552 sfree(xfont->fonts[i].glyphcache[j].bitmap);
554 sfree(xfont->fonts[i].glyphcache);
561 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
563 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
564 char *derived_name = x11_guess_derived_font_name
565 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
566 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
567 xfont->fonts[sfid].allocated = TRUE;
569 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
572 static int x11font_has_glyph(unifont *font, wchar_t glyph)
574 struct x11font *xfont = (struct x11font *)font;
576 if (xfont->sixteen_bit) {
578 * This X font has 16-bit character indices, which means
579 * we can directly use our Unicode input value.
581 return x11_font_has_glyph(xfont->fonts[0].xfs,
582 glyph >> 8, glyph & 0xFF);
585 * This X font has 8-bit indices, so we must convert to the
586 * appropriate character set.
589 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
590 sbstring, 2, "", NULL, NULL);
591 if (sblen == 0 || !sbstring[0])
592 return FALSE; /* not even in the charset */
594 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
595 (unsigned char)sbstring[0]);
599 #if !GTK_CHECK_VERSION(2,0,0)
600 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
601 #elif GTK_CHECK_VERSION(3,0,0)
602 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
605 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
606 const void *vstring, int start, int length)
608 const XChar2b *string = (const XChar2b *)vstring;
609 return XTextWidth16(xfi->xfs, string+start, length);
612 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
613 const void *vstring, int start, int length)
615 const char *string = (const char *)vstring;
616 return XTextWidth(xfi->xfs, string+start, length);
620 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
622 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
623 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
626 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
627 x11font_individual *xfi, int x, int y,
628 const void *vstring, int start, int length)
630 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
631 const XChar2b *string = (const XChar2b *)vstring;
632 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
633 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
636 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
637 x11font_individual *xfi, int x, int y,
638 const void *vstring, int start, int length)
640 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
641 const char *string = (const char *)vstring;
642 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
643 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
647 #ifdef DRAW_TEXT_CAIRO
648 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
650 if (xfi->pixmap == None) {
651 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
653 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
654 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
657 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
659 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
660 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
661 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
663 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
665 xfi->allsize = xfi->rowsize * xfi->pixheight;
669 * Test host endianness and use it to set xfi->indexflip,
670 * which is XORed into our left-shift counts in order to
671 * implement the CAIRO_FORMAT_A1 specification, in which
672 * each bitmap byte is oriented LSB-first on little-endian
673 * platforms and MSB-first on big-endian ones.
675 * This is the same technique Cairo itself uses to test
676 * endianness, so hopefully it'll work in any situation
677 * where Cairo is usable at all.
679 static const int endianness_test = 1;
680 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
683 xfi->pixmap = XCreatePixmap
685 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
686 xfi->pixwidth, xfi->pixheight, 1);
687 gcvals.foreground = WhitePixel(disp, widgetscr);
688 gcvals.background = BlackPixel(disp, widgetscr);
689 gcvals.font = xfi->xfs->fid;
690 xfi->gc = XCreateGC(disp, xfi->pixmap,
691 GCForeground | GCBackground | GCFont, &gcvals);
695 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
699 unsigned char *bitmap;
700 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
701 const XCharStruct *xcs = x11_char_struct(xfi->xfs, glyphindex >> 8,
704 bitmap = snewn(xfi->allsize, unsigned char);
705 memset(bitmap, 0, xfi->allsize);
707 image = XGetImage(disp, xfi->pixmap, 0, 0,
708 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
709 for (y = xfi->pixoriginy - xcs->ascent;
710 y < xfi->pixoriginy + xcs->descent; y++) {
711 for (x = xfi->pixoriginx + xcs->lbearing;
712 x < xfi->pixoriginx + xcs->rbearing; x++) {
713 unsigned long pixel = XGetPixel(image, x, y);
715 int byteindex = y * xfi->rowsize + x/8;
716 int bitindex = (x & 7) ^ xfi->indexflip;
717 bitmap[byteindex] |= 1U << bitindex;
721 XDestroyImage(image);
723 if (xfi->nglyphs <= glyphindex) {
724 /* Round up to the next multiple of 256 on the general
725 * principle that Unicode characters come in contiguous blocks
726 * often used together */
727 int old_nglyphs = xfi->nglyphs;
728 xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
729 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
730 struct cairo_cached_glyph);
732 while (old_nglyphs < xfi->nglyphs) {
733 xfi->glyphcache[old_nglyphs].surface = NULL;
734 xfi->glyphcache[old_nglyphs].bitmap = NULL;
738 xfi->glyphcache[glyphindex].bitmap = bitmap;
739 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
740 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
743 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
744 x11font_individual *xfi, int x, int y,
747 if (xfi->glyphcache[glyphindex].surface) {
748 cairo_mask_surface(ctx->u.cairo.cr,
749 xfi->glyphcache[glyphindex].surface,
750 x - xfi->pixoriginx, y - xfi->pixoriginy);
754 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
755 x11font_individual *xfi, int x, int y,
756 const void *vstring, int start, int length)
758 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
759 const XChar2b *string = (const XChar2b *)vstring + start;
761 for (i = 0; i < length; i++) {
762 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
763 int glyphindex = (256 * (unsigned char)string[i].byte1 +
764 (unsigned char)string[i].byte2);
765 if (glyphindex >= xfi->nglyphs ||
766 !xfi->glyphcache[glyphindex].surface) {
767 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
768 xfi->pixoriginx, xfi->pixoriginy,
770 x11font_cairo_cache_glyph(xfi, glyphindex);
772 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
773 x += XTextWidth16(xfi->xfs, string+i, 1);
778 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
779 x11font_individual *xfi, int x, int y,
780 const void *vstring, int start, int length)
782 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
783 const char *string = (const char *)vstring + start;
785 for (i = 0; i < length; i++) {
786 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
787 int glyphindex = (unsigned char)string[i];
788 if (glyphindex >= xfi->nglyphs ||
789 !xfi->glyphcache[glyphindex].surface) {
790 XDrawImageString(disp, xfi->pixmap, xfi->gc,
791 xfi->pixoriginx, xfi->pixoriginy,
793 x11font_cairo_cache_glyph(xfi, glyphindex);
795 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
796 x += XTextWidth(xfi->xfs, string+i, 1);
800 #endif /* DRAW_TEXT_CAIRO */
802 struct x11font_drawfuncs {
803 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
804 const void *vstring, int start, int length);
805 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
806 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
807 const void *vstring, int start, int length);
811 * This array has two entries per compiled-in drawtype; of each pair,
812 * the first is for an 8-bit font and the second for 16-bit.
814 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
829 #ifdef DRAW_TEXT_CAIRO
834 x11font_cairo_draw_8,
836 /* [3] cairo, 16-bit */
840 x11font_cairo_draw_16,
845 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
846 unifont_drawctx *ctx,
847 x11font_individual *xfi, int x, int y,
848 const void *string, int nchars,
850 int fontvariable, int cellwidth)
852 int start = 0, step, nsteps, centre;
856 * In a variable-pitch font, we draw one character at a
857 * time, and centre it in the character cell.
864 * In a fixed-pitch font, we can draw the whole lot in one go.
871 dfns->setup(ctx, xfi);
873 while (nsteps-- > 0) {
876 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
878 dfns->draw(ctx, xfi, X, y, string, start, step);
880 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
887 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
888 int x, int y, const wchar_t *string, int len,
889 int wide, int bold, int cellwidth)
891 struct x11font *xfont = (struct x11font *)font;
893 int shadowoffset = 0;
894 int mult = (wide ? 2 : 1);
895 int index = 2 * (int)ctx->type;
901 * Decide which subfont we're using, and whether we have to
904 if (xfont->shadowalways && bold) {
905 shadowoffset = xfont->shadowoffset;
908 sfid = 2 * wide + bold;
909 if (!xfont->fonts[sfid].allocated)
910 x11_alloc_subfont(xfont, sfid);
911 if (bold && !xfont->fonts[sfid].xfs) {
913 shadowoffset = xfont->shadowoffset;
914 sfid = 2 * wide + bold;
915 if (!xfont->fonts[sfid].allocated)
916 x11_alloc_subfont(xfont, sfid);
919 if (!xfont->fonts[sfid].xfs)
920 return; /* we've tried our best, but no luck */
922 if (xfont->sixteen_bit) {
924 * This X font has 16-bit character indices, which means
925 * we can directly use our Unicode input string.
930 xcs = snewn(len, XChar2b);
931 for (i = 0; i < len; i++) {
932 xcs[i].byte1 = string[i] >> 8;
933 xcs[i].byte2 = string[i];
936 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
937 &xfont->fonts[sfid], x, y,
938 xcs, len, shadowoffset,
939 xfont->variable, cellwidth * mult);
943 * This X font has 8-bit indices, so we must convert to the
944 * appropriate character set.
946 char *sbstring = snewn(len+1, char);
947 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
948 sbstring, len+1, ".", NULL, NULL);
949 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
950 &xfont->fonts[sfid], x, y,
951 sbstring, sblen, shadowoffset,
952 xfont->variable, cellwidth * mult);
957 static void x11font_draw_combining(unifont_drawctx *ctx, unifont *font,
958 int x, int y, const wchar_t *string,
959 int len, int wide, int bold, int cellwidth)
962 * For server-side fonts, there's no sophisticated system for
963 * combining characters intelligently, so the best we can do is to
964 * overprint them on each other in the obvious way.
967 for (i = 0; i < len; i++)
968 x11font_draw_text(ctx, font, x, y, string+i, 1, wide, bold, cellwidth);
971 static void x11font_enum_fonts(GtkWidget *widget,
972 fontsel_add_entry callback, void *callback_ctx)
974 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
977 int nnames, i, max, tmpsize;
981 fontnames = XListFonts(disp, "*", max, &nnames);
983 XFreeFontNames(fontnames);
991 for (i = 0; i < nnames; i++) {
992 struct xlfd_decomposed *xlfd = xlfd_decompose(fontnames[i]);
994 char *p, *font, *style, *stylekey, *charset;
995 int weightkey, slantkey, setwidthkey;
999 * Convert a dismembered XLFD into the format we'll be
1000 * using in the font selector.
1003 thistmpsize = 4 * strlen(fontnames[i]) + 256;
1004 if (tmpsize < thistmpsize) {
1005 tmpsize = thistmpsize;
1006 tmp = sresize(tmp, tmpsize, char);
1011 * Font name is in the form "family (foundry)". (This is
1012 * what the GTK 1.2 X font selector does, and it seems to
1013 * come out looking reasonably sensible.)
1016 p += 1 + sprintf(p, "%s (%s)", xlfd->family_name, xlfd->foundry);
1022 p += 1 + sprintf(p, "%s-%s", xlfd->charset_registry,
1023 xlfd->charset_encoding);
1026 * Style is a mixture of quite a lot of the fields,
1027 * with some strange formatting.
1030 p += sprintf(p, "%s", xlfd->weight_name[0] ? xlfd->weight_name :
1032 if (!g_ascii_strcasecmp(xlfd->slant, "i"))
1033 p += sprintf(p, " italic");
1034 else if (!g_ascii_strcasecmp(xlfd->slant, "o"))
1035 p += sprintf(p, " oblique");
1036 else if (!g_ascii_strcasecmp(xlfd->slant, "ri"))
1037 p += sprintf(p, " reverse italic");
1038 else if (!g_ascii_strcasecmp(xlfd->slant, "ro"))
1039 p += sprintf(p, " reverse oblique");
1040 else if (!g_ascii_strcasecmp(xlfd->slant, "ot"))
1041 p += sprintf(p, " other-slant");
1042 if (xlfd->setwidth_name[0] &&
1043 g_ascii_strcasecmp(xlfd->setwidth_name, "normal"))
1044 p += sprintf(p, " %s", xlfd->setwidth_name);
1045 if (!g_ascii_strcasecmp(xlfd->spacing, "m"))
1046 p += sprintf(p, " [M]");
1047 if (!g_ascii_strcasecmp(xlfd->spacing, "c"))
1048 p += sprintf(p, " [C]");
1049 if (xlfd->add_style_name[0])
1050 p += sprintf(p, " %s", xlfd->add_style_name);
1053 * Style key is the same stuff as above, but with a
1054 * couple of transformations done on it to make it
1055 * sort more sensibly.
1059 if (!g_ascii_strcasecmp(xlfd->weight_name, "medium") ||
1060 !g_ascii_strcasecmp(xlfd->weight_name, "regular") ||
1061 !g_ascii_strcasecmp(xlfd->weight_name, "normal") ||
1062 !g_ascii_strcasecmp(xlfd->weight_name, "book"))
1064 else if (!g_ascii_strncasecmp(xlfd->weight_name, "demi", 4) ||
1065 !g_ascii_strncasecmp(xlfd->weight_name, "semi", 4))
1069 if (!g_ascii_strcasecmp(xlfd->slant, "r"))
1071 else if (!g_ascii_strncasecmp(xlfd->slant, "r", 1))
1075 if (!g_ascii_strcasecmp(xlfd->setwidth_name, "normal"))
1081 p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
1082 weightkey, (int)strlen(xlfd->weight_name), xlfd->weight_name,
1083 slantkey, (int)strlen(xlfd->slant), xlfd->slant,
1085 (int)strlen(xlfd->setwidth_name), xlfd->setwidth_name,
1086 (int)strlen(xlfd->spacing), xlfd->spacing,
1087 (int)strlen(xlfd->add_style_name), xlfd->add_style_name);
1089 assert(p - tmp < thistmpsize);
1092 * Flags: we need to know whether this is a monospaced
1093 * font, which we do by examining the spacing field
1096 flags = FONTFLAG_SERVERSIDE;
1097 if (!strchr("CcMm", xlfd->spacing[0]))
1098 flags |= FONTFLAG_NONMONOSPACED;
1101 * Some fonts have a pixel size of zero, meaning they're
1102 * treated as scalable. For these purposes, we only want
1103 * fonts whose pixel size we actually know, so filter
1106 if (xlfd->pixel_size)
1107 callback(callback_ctx, fontnames[i], font, charset,
1108 style, stylekey, xlfd->pixel_size, flags,
1114 * This isn't an XLFD, so it must be an alias.
1115 * Transmit it with mostly null data.
1117 * It would be nice to work out if it's monospaced
1118 * here, but at the moment I can't see that being
1119 * anything but computationally hideous. Ah well.
1121 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1122 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1127 XFreeFontNames(fontnames);
1130 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1131 int *size, int *flags,
1132 int resolve_aliases)
1135 * When given an X11 font name to try to make sense of for a
1136 * font selector, we must attempt to load it (to see if it
1137 * exists), and then canonify it by extracting its FONT
1138 * property, which should give its full XLFD even if what we
1139 * originally had was a wildcard.
1141 * However, we must carefully avoid canonifying font
1142 * _aliases_, unless specifically asked to, because the font
1143 * selector treats them as worthwhile in their own right.
1146 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1147 Atom fontprop, fontprop2;
1150 xfs = XLoadQueryFont(disp, name);
1153 return NULL; /* didn't make sense to us, sorry */
1155 fontprop = XInternAtom(disp, "FONT", False);
1157 if (XGetFontProperty(xfs, fontprop, &ret)) {
1158 char *newname = XGetAtomName(disp, (Atom)ret);
1160 unsigned long fsize = 12;
1162 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1163 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1165 XFreeFont(disp, xfs);
1167 if (name[0] == '-' || resolve_aliases)
1168 *flags = FONTFLAG_SERVERSIDE;
1170 *flags = FONTFLAG_SERVERALIAS;
1172 return dupstr(name[0] == '-' || resolve_aliases ?
1178 XFreeFont(disp, xfs);
1180 return NULL; /* something went wrong */
1183 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1186 return NULL; /* shan't */
1189 static char *x11font_size_increment(unifont *font, int increment)
1191 struct x11font *xfont = (struct x11font *)font;
1192 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1193 Atom fontprop = XInternAtom(disp, "FONT", False);
1194 char *returned_name = NULL;
1196 if (XGetFontProperty(xfont->fonts[0].xfs, fontprop, &ret)) {
1197 struct xlfd_decomposed *xlfd;
1198 struct xlfd_decomposed *xlfd_best;
1203 xlfd = xlfd_decompose(XGetAtomName(disp, (Atom)ret));
1208 * Form a wildcard consisting of everything in the
1209 * original XLFD except for the size-related fields.
1212 struct xlfd_decomposed xlfd_wc = *xlfd; /* structure copy */
1213 xlfd_wc.pixel_size = XLFD_INT_WILDCARD;
1214 xlfd_wc.point_size = XLFD_INT_WILDCARD;
1215 xlfd_wc.average_width = XLFD_INT_WILDCARD;
1216 wc = xlfd_recompose(&xlfd_wc);
1220 * Fetch all the font names matching that wildcard.
1224 fontnames = XListFonts(disp, wc, max, &nnames);
1225 if (nnames >= max) {
1226 XFreeFontNames(fontnames);
1235 * Iterate over those to find the one closest in size to the
1236 * original font, in the correct direction.
1239 #define FLIPPED_SIZE(xlfd) \
1240 (((xlfd)->pixel_size + (xlfd)->point_size) * \
1241 (increment < 0 ? -1 : +1))
1244 for (i = 0; i < nnames; i++) {
1245 struct xlfd_decomposed *xlfd2 = xlfd_decompose(fontnames[i]);
1249 if (xlfd2->pixel_size != 0 &&
1250 FLIPPED_SIZE(xlfd2) > FLIPPED_SIZE(xlfd) &&
1251 (!xlfd_best || FLIPPED_SIZE(xlfd2)<FLIPPED_SIZE(xlfd_best))) {
1263 char *bare_returned_name = xlfd_recompose(xlfd_best);
1264 returned_name = dupcat(
1265 xfont->u.vt->prefix, ":", bare_returned_name,
1266 (const char *)NULL);
1267 sfree(bare_returned_name);
1270 XFreeFontNames(fontnames);
1274 return returned_name;
1277 #endif /* NOT_X_WINDOWS */
1279 #if GTK_CHECK_VERSION(2,0,0)
1281 /* ----------------------------------------------------------------------
1282 * Pango font implementation (for GTK 2 only).
1285 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1286 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1289 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1290 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1291 int x, int y, const wchar_t *string, int len,
1292 int wide, int bold, int cellwidth);
1293 static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
1294 int x, int y, const wchar_t *string,
1295 int len, int wide, int bold,
1297 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1299 int shadowoffset, int shadowalways);
1300 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1302 int shadowoffset, int shadowalways);
1303 static void pangofont_destroy(unifont *font);
1304 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1305 void *callback_ctx);
1306 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1307 int *size, int *flags,
1308 int resolve_aliases);
1309 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1311 static char *pangofont_size_increment(unifont *font, int increment);
1318 PangoFontDescription *desc;
1321 * The containing widget.
1325 * Data passed in to unifont_create().
1327 int bold, shadowoffset, shadowalways;
1329 * Cache of character widths, indexed by Unicode code point. In
1330 * pixels; -1 means we haven't asked Pango about this character
1334 unsigned nwidthcache;
1337 static const struct unifont_vtable pangofont_vtable = {
1339 pangofont_create_fallback,
1341 pangofont_has_glyph,
1342 pangofont_draw_text,
1343 pangofont_draw_combining,
1344 pangofont_enum_fonts,
1345 pangofont_canonify_fontname,
1346 pangofont_scale_fontname,
1347 pangofont_size_increment,
1352 * This function is used to rigorously validate a
1353 * PangoFontDescription. Later versions of Pango have a nasty
1354 * habit of accepting _any_ old string as input to
1355 * pango_font_description_from_string and returning a font
1356 * description which can actually be used to display text, even if
1357 * they have to do it by falling back to their most default font.
1358 * This is doubtless helpful in some situations, but not here,
1359 * because we need to know if a Pango font string actually _makes
1360 * sense_ in order to fall back to treating it as an X font name
1361 * if it doesn't. So we check that the font family is actually one
1362 * supported by Pango.
1364 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1365 PangoFontDescription *desc)
1367 #ifndef PANGO_PRE_1POINT6
1370 PangoFontFamily **families;
1371 int i, nfamilies, matched;
1374 * Ask Pango for a list of font families, and iterate through
1375 * them to see if one of them matches the family in the
1376 * PangoFontDescription.
1378 #ifndef PANGO_PRE_1POINT6
1379 map = pango_context_get_font_map(ctx);
1382 pango_font_map_list_families(map, &families, &nfamilies);
1384 pango_context_list_families(ctx, &families, &nfamilies);
1388 for (i = 0; i < nfamilies; i++) {
1389 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1390 pango_font_description_get_family(desc))) {
1400 static unifont *pangofont_create_internal(GtkWidget *widget,
1402 PangoFontDescription *desc,
1404 int shadowoffset, int shadowalways)
1406 struct pangofont *pfont;
1407 #ifndef PANGO_PRE_1POINT6
1411 PangoFontMetrics *metrics;
1413 #ifndef PANGO_PRE_1POINT6
1414 map = pango_context_get_font_map(ctx);
1416 pango_font_description_free(desc);
1419 fset = pango_font_map_load_fontset(map, ctx, desc,
1420 pango_context_get_language(ctx));
1422 fset = pango_context_load_fontset(ctx, desc,
1423 pango_context_get_language(ctx));
1426 pango_font_description_free(desc);
1429 metrics = pango_fontset_get_metrics(fset);
1431 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1432 pango_font_description_free(desc);
1433 g_object_unref(fset);
1437 pfont = snew(struct pangofont);
1438 pfont->u.vt = &pangofont_vtable;
1440 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1441 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1442 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1443 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1444 pfont->u.want_fallback = FALSE;
1445 #ifdef DRAW_TEXT_CAIRO
1446 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1447 #elif defined DRAW_TEXT_GDK
1448 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1450 #error No drawtype available at all
1452 /* The Pango API is hardwired to UTF-8 */
1453 pfont->u.public_charset = CS_UTF8;
1456 pfont->widget = widget;
1458 pfont->shadowoffset = shadowoffset;
1459 pfont->shadowalways = shadowalways;
1460 pfont->widthcache = NULL;
1461 pfont->nwidthcache = 0;
1463 pango_font_metrics_unref(metrics);
1465 return (unifont *)pfont;
1468 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1470 int shadowoffset, int shadowalways)
1473 PangoFontDescription *desc;
1475 desc = pango_font_description_from_string(name);
1478 ctx = gtk_widget_get_pango_context(widget);
1480 pango_font_description_free(desc);
1483 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1484 pango_font_description_free(desc);
1487 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1488 shadowoffset, shadowalways);
1491 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1493 int shadowoffset, int shadowalways)
1496 PangoFontDescription *desc;
1498 desc = pango_font_description_from_string("Monospace");
1501 ctx = gtk_widget_get_pango_context(widget);
1503 pango_font_description_free(desc);
1506 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1507 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1508 shadowoffset, shadowalways);
1511 static void pangofont_destroy(unifont *font)
1513 struct pangofont *pfont = (struct pangofont *)font;
1514 pango_font_description_free(pfont->desc);
1515 sfree(pfont->widthcache);
1516 g_object_unref(pfont->fset);
1520 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1521 wchar_t uchr, const char *utfchr, int utflen)
1524 * Here we check whether a character has the same width as the
1525 * character cell it'll be drawn in. Because profiling showed that
1526 * asking Pango for text sizes was a huge bottleneck when we were
1527 * calling it every time we needed to know this, we instead call
1528 * it only on characters we don't already know about, and cache
1532 if ((unsigned)uchr >= pfont->nwidthcache) {
1533 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1534 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1535 while (pfont->nwidthcache < newsize)
1536 pfont->widthcache[pfont->nwidthcache++] = -1;
1539 if (pfont->widthcache[uchr] < 0) {
1540 PangoRectangle rect;
1541 pango_layout_set_text(layout, utfchr, utflen);
1542 pango_layout_get_extents(layout, NULL, &rect);
1543 pfont->widthcache[uchr] = rect.width;
1546 return pfont->widthcache[uchr];
1549 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1551 /* Pango implements font fallback, so assume it has everything */
1555 #ifdef DRAW_TEXT_GDK
1556 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1557 gint x, gint y, PangoLayout *layout)
1559 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1563 #ifdef DRAW_TEXT_CAIRO
1564 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1565 gint x, gint y, PangoLayout *layout)
1567 cairo_move_to(ctx->u.cairo.cr, x, y);
1568 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1572 static void pangofont_draw_internal(unifont_drawctx *ctx, unifont *font,
1573 int x, int y, const wchar_t *string,
1574 int len, int wide, int bold, int cellwidth,
1577 struct pangofont *pfont = (struct pangofont *)font;
1578 PangoLayout *layout;
1579 PangoRectangle rect;
1580 char *utfstring, *utfptr;
1582 int shadowbold = FALSE;
1583 void (*draw_layout)(unifont_drawctx *ctx,
1584 gint x, gint y, PangoLayout *layout) = NULL;
1586 #ifdef DRAW_TEXT_GDK
1587 if (ctx->type == DRAWTYPE_GDK) {
1588 draw_layout = pango_gdk_draw_layout;
1591 #ifdef DRAW_TEXT_CAIRO
1592 if (ctx->type == DRAWTYPE_CAIRO) {
1593 draw_layout = pango_cairo_draw_layout;
1600 y -= pfont->u.ascent;
1602 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1603 pango_layout_set_font_description(layout, pfont->desc);
1604 if (bold > pfont->bold) {
1605 if (pfont->shadowalways)
1608 PangoFontDescription *desc2 =
1609 pango_font_description_copy_static(pfont->desc);
1610 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1611 pango_layout_set_font_description(layout, desc2);
1616 * Pango always expects UTF-8, so convert the input wide character
1619 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1620 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1621 utfstring, len*6+1, ".", NULL, NULL);
1624 while (utflen > 0) {
1626 int desired = cellwidth * PANGO_SCALE;
1629 * We want to display every character from this string in
1630 * the centre of its own character cell. In the worst case,
1631 * this requires a separate text-drawing call for each
1632 * character; but in the common case where the font is
1633 * properly fixed-width, we can draw many characters in one
1634 * go which is much faster.
1636 * This still isn't really ideal. If you look at what
1637 * happens in the X protocol as a result of all of this, you
1638 * find - naturally enough - that each call to
1639 * gdk_draw_layout() generates a separate set of X RENDER
1640 * operations involving creating a picture, setting a clip
1641 * rectangle, doing some drawing and undoing the whole lot.
1642 * In an ideal world, we should _always_ be able to turn the
1643 * contents of this loop into a single RenderCompositeGlyphs
1644 * operation which internally specifies inter-character
1645 * deltas to get the spacing right, which would give us full
1646 * speed _even_ in the worst case of a non-fixed-width font.
1647 * However, Pango's architecture and documentation are so
1648 * unhelpful that I have no idea how if at all to persuade
1654 * For a character with combining stuff, we just dump the
1655 * whole lot in one go, and expect it to take up just one
1662 * Start by extracting a single UTF-8 character from the
1666 while (clen < utflen &&
1667 (unsigned char)utfptr[clen] >= 0x80 &&
1668 (unsigned char)utfptr[clen] < 0xC0)
1672 if (is_rtl(string[0]) ||
1673 pangofont_char_width(layout, pfont, string[n-1],
1674 utfptr, clen) != desired) {
1676 * If this character is a right-to-left one, or has an
1677 * unusual width, then we must display it on its own.
1681 * Try to amalgamate a contiguous string of characters
1682 * with the expected sensible width, for the common case
1683 * in which we're using a monospaced font and everything
1684 * works as expected.
1686 while (clen < utflen) {
1688 clen++; /* skip UTF-8 introducer byte */
1689 while (clen < utflen &&
1690 (unsigned char)utfptr[clen] >= 0x80 &&
1691 (unsigned char)utfptr[clen] < 0xC0)
1694 if (is_rtl(string[n-1]) ||
1695 pangofont_char_width(layout, pfont,
1696 string[n-1], utfptr + oldclen,
1697 clen - oldclen) != desired) {
1706 pango_layout_set_text(layout, utfptr, clen);
1707 pango_layout_get_pixel_extents(layout, NULL, &rect);
1710 x + (n*cellwidth - rect.width)/2,
1711 y + (pfont->u.height - rect.height)/2, layout);
1714 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1715 y + (pfont->u.height - rect.height)/2, layout);
1725 g_object_unref(layout);
1728 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1729 int x, int y, const wchar_t *string, int len,
1730 int wide, int bold, int cellwidth)
1732 pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
1736 static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
1737 int x, int y, const wchar_t *string,
1738 int len, int wide, int bold,
1741 wchar_t *tmpstring = NULL;
1742 if (mk_wcwidth(string[0]) == 0) {
1744 * If we've been told to draw a sequence of _only_ combining
1745 * characters, prefix a space so that they have something to
1748 tmpstring = snewn(len+1, wchar_t);
1749 memcpy(tmpstring+1, string, len * sizeof(wchar_t));
1750 tmpstring[0] = L' ';
1754 pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
1760 * Dummy size value to be used when converting a
1761 * PangoFontDescription of a scalable font to a string for
1764 #define PANGO_DUMMY_SIZE 12
1766 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1770 #ifndef PANGO_PRE_1POINT6
1773 PangoFontFamily **families;
1776 ctx = gtk_widget_get_pango_context(widget);
1781 * Ask Pango for a list of font families, and iterate through
1784 #ifndef PANGO_PRE_1POINT6
1785 map = pango_context_get_font_map(ctx);
1788 pango_font_map_list_families(map, &families, &nfamilies);
1790 pango_context_list_families(ctx, &families, &nfamilies);
1792 for (i = 0; i < nfamilies; i++) {
1793 PangoFontFamily *family = families[i];
1794 const char *familyname;
1796 PangoFontFace **faces;
1800 * Set up our flags for this font family, and get the name
1803 flags = FONTFLAG_CLIENTSIDE;
1804 #ifndef PANGO_PRE_1POINT4
1806 * In very early versions of Pango, we can't tell
1807 * monospaced fonts from non-monospaced.
1809 if (!pango_font_family_is_monospace(family))
1810 flags |= FONTFLAG_NONMONOSPACED;
1812 familyname = pango_font_family_get_name(family);
1815 * Go through the available font faces in this family.
1817 pango_font_family_list_faces(family, &faces, &nfaces);
1818 for (j = 0; j < nfaces; j++) {
1819 PangoFontFace *face = faces[j];
1820 PangoFontDescription *desc;
1821 const char *facename;
1823 int k, nsizes, dummysize;
1826 * Get the face name string.
1828 facename = pango_font_face_get_face_name(face);
1831 * Set up a font description with what we've got so
1832 * far. We'll fill in the size field manually and then
1833 * call pango_font_description_to_string() to give the
1834 * full real name of the specific font.
1836 desc = pango_font_face_describe(face);
1839 * See if this font has a list of specific sizes.
1841 #ifndef PANGO_PRE_1POINT4
1842 pango_font_face_list_sizes(face, &sizes, &nsizes);
1845 * In early versions of Pango, that call wasn't
1846 * supported; we just have to assume everything is
1853 * Write a single entry with a dummy size.
1855 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1861 * If so, go through them one by one.
1863 for (k = 0; k < nsizes; k++) {
1867 pango_font_description_set_size(desc, sizes[k]);
1869 fullname = pango_font_description_to_string(desc);
1872 * Construct the sorting key for font styles.
1878 n = pango_font_description_get_weight(desc);
1879 /* Weight: normal, then lighter, then bolder */
1880 if (n <= PANGO_WEIGHT_NORMAL)
1881 n = PANGO_WEIGHT_NORMAL - n;
1882 p += sprintf(p, "%4d", n);
1884 n = pango_font_description_get_style(desc);
1885 p += sprintf(p, " %2d", n);
1887 n = pango_font_description_get_stretch(desc);
1888 /* Stretch: closer to normal sorts earlier */
1889 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1890 (n < PANGO_STRETCH_NORMAL);
1891 p += sprintf(p, " %2d", n);
1893 n = pango_font_description_get_variant(desc);
1894 p += sprintf(p, " %2d", n);
1899 * Got everything. Hand off to the callback.
1900 * (The charset string is NULL, because only
1901 * server-side X fonts use it.)
1903 callback(callback_ctx, fullname, familyname, NULL, facename,
1905 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1906 flags, &pangofont_vtable);
1910 if (sizes != &dummysize)
1913 pango_font_description_free(desc);
1920 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1921 int *size, int *flags,
1922 int resolve_aliases)
1925 * When given a Pango font name to try to make sense of for a
1926 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1927 * extract its original size (in pixels) into the `size' field.
1930 #ifndef PANGO_PRE_1POINT6
1933 PangoFontDescription *desc;
1935 PangoFontMetrics *metrics;
1936 char *newname, *retname;
1938 desc = pango_font_description_from_string(name);
1941 ctx = gtk_widget_get_pango_context(widget);
1943 pango_font_description_free(desc);
1946 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1947 pango_font_description_free(desc);
1950 #ifndef PANGO_PRE_1POINT6
1951 map = pango_context_get_font_map(ctx);
1953 pango_font_description_free(desc);
1956 fset = pango_font_map_load_fontset(map, ctx, desc,
1957 pango_context_get_language(ctx));
1959 fset = pango_context_load_fontset(ctx, desc,
1960 pango_context_get_language(ctx));
1963 pango_font_description_free(desc);
1966 metrics = pango_fontset_get_metrics(fset);
1968 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1969 pango_font_description_free(desc);
1970 g_object_unref(fset);
1974 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1975 *flags = FONTFLAG_CLIENTSIDE;
1976 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1977 newname = pango_font_description_to_string(desc);
1978 retname = dupstr(newname);
1981 pango_font_metrics_unref(metrics);
1982 pango_font_description_free(desc);
1983 g_object_unref(fset);
1988 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1991 PangoFontDescription *desc;
1992 char *newname, *retname;
1994 desc = pango_font_description_from_string(name);
1997 pango_font_description_set_size(desc, size * PANGO_SCALE);
1998 newname = pango_font_description_to_string(desc);
1999 retname = dupstr(newname);
2001 pango_font_description_free(desc);
2006 static char *pangofont_size_increment(unifont *font, int increment)
2008 struct pangofont *pfont = (struct pangofont *)font;
2009 PangoFontDescription *desc;
2011 char *newname, *retname;
2013 desc = pango_font_description_copy_static(pfont->desc);
2015 size = pango_font_description_get_size(desc);
2016 size += PANGO_SCALE * increment;
2021 pango_font_description_set_size(desc, size);
2022 newname = pango_font_description_to_string(desc);
2023 retname = dupcat(pfont->u.vt->prefix, ":",
2024 newname, (const char *)NULL);
2028 pango_font_description_free(desc);
2032 #endif /* GTK_CHECK_VERSION(2,0,0) */
2034 /* ----------------------------------------------------------------------
2035 * Outermost functions which do the vtable dispatch.
2039 * Complete list of font-type subclasses. Listed in preference
2040 * order for unifont_create(). (That is, in the extremely unlikely
2041 * event that the same font name is valid as both a Pango and an
2042 * X11 font, it will be interpreted as the former in the absence
2043 * of an explicit type-disambiguating prefix.)
2045 * The 'multifont' subclass is omitted here, as discussed above.
2047 static const struct unifont_vtable *unifont_types[] = {
2048 #if GTK_CHECK_VERSION(2,0,0)
2051 #ifndef NOT_X_WINDOWS
2057 * Function which takes a font name and processes the optional
2058 * scheme prefix. Returns the tail of the font name suitable for
2059 * passing to individual font scheme functions, and also provides
2060 * a subrange of the unifont_types[] array above.
2062 * The return values `start' and `end' denote a half-open interval
2063 * in unifont_types[]; that is, the correct way to iterate over
2066 * for (i = start; i < end; i++) {...}
2068 static const char *unifont_do_prefix(const char *name, int *start, int *end)
2070 int colonpos = strcspn(name, ":");
2073 if (name[colonpos]) {
2075 * There's a colon prefix on the font name. Use it to work
2076 * out which subclass to use.
2078 for (i = 0; i < lenof(unifont_types); i++) {
2079 if (strlen(unifont_types[i]->prefix) == colonpos &&
2080 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
2083 return name + colonpos + 1;
2087 * None matched, so return an empty scheme list to prevent
2088 * any scheme from being called at all.
2091 return name + colonpos + 1;
2094 * No colon prefix, so just use all the subclasses.
2097 *end = lenof(unifont_types);
2102 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
2103 int bold, int shadowoffset, int shadowalways)
2107 name = unifont_do_prefix(name, &start, &end);
2109 for (i = start; i < end; i++) {
2110 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
2111 shadowoffset, shadowalways);
2115 return NULL; /* font not found in any scheme */
2118 void unifont_destroy(unifont *font)
2120 font->vt->destroy(font);
2123 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
2124 int x, int y, const wchar_t *string, int len,
2125 int wide, int bold, int cellwidth)
2127 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
2130 void unifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2131 int x, int y, const wchar_t *string, int len,
2132 int wide, int bold, int cellwidth)
2134 font->vt->draw_combining(ctx, font, x, y, string, len, wide, bold,
2138 char *unifont_size_increment(unifont *font, int increment)
2140 return font->vt->size_increment(font, increment);
2143 /* ----------------------------------------------------------------------
2144 * Multiple-font wrapper. This is a type of unifont which encapsulates
2145 * up to two other unifonts, permitting missing glyphs in the main
2146 * font to be filled in by a fallback font.
2148 * This is a type of unifont just like the previous two, but it has a
2149 * separate constructor which is manually called by the client, so it
2150 * doesn't appear in the list of available font types enumerated by
2151 * unifont_create. This means it's not used by unifontsel either, so
2152 * it doesn't need to support any methods except draw_text and
2156 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
2157 int x, int y, const wchar_t *string, int len,
2158 int wide, int bold, int cellwidth);
2159 static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2160 int x, int y, const wchar_t *string,
2161 int len, int wide, int bold,
2163 static void multifont_destroy(unifont *font);
2164 static char *multifont_size_increment(unifont *font, int increment);
2172 static const struct unifont_vtable multifont_vtable = {
2173 NULL, /* creation is done specially */
2177 multifont_draw_text,
2178 multifont_draw_combining,
2182 multifont_size_increment,
2186 unifont *multifont_create(GtkWidget *widget, const char *name,
2188 int shadowoffset, int shadowalways)
2191 unifont *font, *fallback;
2192 struct multifont *mfont;
2194 font = unifont_create(widget, name, wide, bold,
2195 shadowoffset, shadowalways);
2200 if (font->want_fallback) {
2201 for (i = 0; i < lenof(unifont_types); i++) {
2202 if (unifont_types[i]->create_fallback) {
2203 fallback = unifont_types[i]->create_fallback
2204 (widget, font->height, wide, bold,
2205 shadowoffset, shadowalways);
2213 * Construct our multifont. Public members are all copied from the
2214 * primary font we're wrapping.
2216 mfont = snew(struct multifont);
2217 mfont->u.vt = &multifont_vtable;
2218 mfont->u.width = font->width;
2219 mfont->u.ascent = font->ascent;
2220 mfont->u.descent = font->descent;
2221 mfont->u.height = font->height;
2222 mfont->u.public_charset = font->public_charset;
2223 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
2224 mfont->u.preferred_drawtype = font->preferred_drawtype;
2226 mfont->fallback = fallback;
2228 return (unifont *)mfont;
2231 static void multifont_destroy(unifont *font)
2233 struct multifont *mfont = (struct multifont *)font;
2234 unifont_destroy(mfont->main);
2235 if (mfont->fallback)
2236 unifont_destroy(mfont->fallback);
2240 typedef void (*unifont_draw_func_t)(unifont_drawctx *ctx, unifont *font,
2241 int x, int y, const wchar_t *string,
2242 int len, int wide, int bold,
2245 static void multifont_draw_main(unifont_drawctx *ctx, unifont *font, int x,
2246 int y, const wchar_t *string, int len,
2247 int wide, int bold, int cellwidth,
2248 int cellinc, unifont_draw_func_t draw)
2250 struct multifont *mfont = (struct multifont *)font;
2256 * Find a maximal sequence of characters which are, or are
2257 * not, supported by our main font.
2259 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
2262 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
2268 f = ok ? mfont->main : mfont->fallback;
2270 draw(ctx, f, x, y, string, i, wide, bold, cellwidth);
2277 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
2278 int y, const wchar_t *string, int len,
2279 int wide, int bold, int cellwidth)
2281 multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
2282 cellwidth, cellwidth, unifont_draw_text);
2285 static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2286 int x, int y, const wchar_t *string,
2287 int len, int wide, int bold,
2290 multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
2291 cellwidth, 0, unifont_draw_combining);
2294 static char *multifont_size_increment(unifont *font, int increment)
2296 struct multifont *mfont = (struct multifont *)font;
2297 return unifont_size_increment(mfont->main, increment);
2300 #if GTK_CHECK_VERSION(2,0,0)
2302 /* ----------------------------------------------------------------------
2303 * Implementation of a unified font selector. Used on GTK 2 only;
2304 * for GTK 1 we still use the standard font selector.
2307 typedef struct fontinfo fontinfo;
2309 typedef struct unifontsel_internal {
2310 /* This must be the structure's first element, for cross-casting */
2312 GtkListStore *family_model, *style_model, *size_model;
2313 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2314 GtkWidget *filter_buttons[4];
2315 int n_filter_buttons;
2316 GtkWidget *preview_area;
2317 #ifndef NO_BACKING_PIXMAPS
2318 GdkPixmap *preview_pixmap;
2320 int preview_width, preview_height;
2321 GdkColor preview_fg, preview_bg;
2323 tree234 *fonts_by_realname, *fonts_by_selorder;
2325 int selsize, intendedsize;
2326 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2327 } unifontsel_internal;
2330 * The structure held in the tree234s. All the string members are
2331 * part of the same allocated area, so don't need freeing
2336 char *family, *charset, *style, *stylekey;
2339 * Fallback sorting key, to permit multiple identical entries
2340 * to exist in the selorder tree.
2344 * Indices mapping fontinfo structures to indices in the list
2345 * boxes. sizeindex is irrelevant if the font is scalable
2348 int familyindex, styleindex, sizeindex;
2350 * The class of font.
2352 const struct unifont_vtable *fontclass;
2355 struct fontinfo_realname_find {
2356 const char *realname;
2360 static int strnullcasecmp(const char *a, const char *b)
2365 * If exactly one of the inputs is NULL, it compares before
2368 if ((i = (!b) - (!a)) != 0)
2372 * NULL compares equal.
2378 * Otherwise, ordinary strcasecmp.
2380 return g_ascii_strcasecmp(a, b);
2383 static int fontinfo_realname_compare(void *av, void *bv)
2385 fontinfo *a = (fontinfo *)av;
2386 fontinfo *b = (fontinfo *)bv;
2389 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2391 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2392 return ((a->flags & FONTFLAG_SORT_MASK) <
2393 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2397 static int fontinfo_realname_find(void *av, void *bv)
2399 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2400 fontinfo *b = (fontinfo *)bv;
2403 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2405 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2406 return ((a->flags & FONTFLAG_SORT_MASK) <
2407 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2411 static int fontinfo_selorder_compare(void *av, void *bv)
2413 fontinfo *a = (fontinfo *)av;
2414 fontinfo *b = (fontinfo *)bv;
2416 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2419 * Font class comes immediately after family, so that fonts
2420 * from different classes with the same family
2422 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2423 return ((a->flags & FONTFLAG_SORT_MASK) <
2424 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2425 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2427 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2429 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2431 if (a->size != b->size)
2432 return (a->size < b->size ? -1 : +1);
2433 if (a->index != b->index)
2434 return (a->index < b->index ? -1 : +1);
2438 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2440 static void unifontsel_deselect(unifontsel_internal *fs)
2442 fs->selected = NULL;
2443 gtk_list_store_clear(fs->style_model);
2444 gtk_list_store_clear(fs->size_model);
2445 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2446 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2447 unifontsel_draw_preview_text(fs);
2450 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2453 int i, listindex, minpos = -1, maxpos = -1;
2454 char *currfamily = NULL;
2458 fs->inhibit_response = TRUE;
2460 gtk_list_store_clear(fs->family_model);
2464 * Search through the font tree for anything matching our
2465 * current filter criteria. When we find one, add its font
2466 * name to the list box.
2468 for (i = 0 ;; i++) {
2469 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2471 * info may be NULL if we've just run off the end of the
2472 * tree. We must still do a processing pass in that
2473 * situation, in case we had an unfinished font record in
2476 if (info && (info->flags &~ fs->filter_flags)) {
2477 info->familyindex = -1;
2478 continue; /* we're filtering out this font */
2480 if (!info || strnullcasecmp(currfamily, info->family) ||
2481 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2483 * We've either finished a family, or started a new
2487 gtk_list_store_append(fs->family_model, &iter);
2488 gtk_list_store_set(fs->family_model, &iter,
2489 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2494 currfamily = info->family;
2495 currflags = info->flags & FONTFLAG_SORT_MASK;
2499 break; /* now we're done */
2500 info->familyindex = listindex;
2505 * If we've just filtered out the previously selected font,
2506 * deselect it thoroughly.
2508 if (fs->selected && fs->selected->familyindex < 0)
2509 unifontsel_deselect(fs);
2511 fs->inhibit_response = FALSE;
2514 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2518 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2519 char *currcs = NULL, *currstyle = NULL;
2522 gtk_list_store_clear(fs->style_model);
2527 * Search through the font tree for anything matching our
2528 * current filter criteria. When we find one, add its charset
2529 * and/or style name to the list box.
2531 for (i = start; i <= end; i++) {
2535 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2537 * info may be NULL if we've just run off the end of the
2538 * relevant data. We must still do a processing pass in
2539 * that situation, in case we had an unfinished font
2540 * record in progress.
2542 if (info && (info->flags &~ fs->filter_flags)) {
2543 info->styleindex = -1;
2544 continue; /* we're filtering out this font */
2546 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2547 strnullcasecmp(currstyle, info->style)) {
2549 * We've either finished a style/charset, or started a
2554 gtk_list_store_append(fs->style_model, &iter);
2555 gtk_list_store_set(fs->style_model, &iter,
2556 0, currstyle, 1, minpos, 2, maxpos+1,
2557 3, TRUE, 4, PANGO_WEIGHT_NORMAL, -1);
2562 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2563 gtk_list_store_append(fs->style_model, &iter);
2564 gtk_list_store_set(fs->style_model, &iter,
2565 0, info->charset, 1, -1, 2, -1,
2566 3, FALSE, 4, PANGO_WEIGHT_BOLD, -1);
2569 currcs = info->charset;
2570 currstyle = info->style;
2574 break; /* now we're done */
2575 info->styleindex = listindex;
2580 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2582 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2590 gtk_list_store_clear(fs->size_model);
2594 * Search through the font tree for anything matching our
2595 * current filter criteria. When we find one, add its font
2596 * name to the list box.
2598 for (i = start; i < end; i++) {
2599 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2600 if (info->flags &~ fs->filter_flags) {
2601 info->sizeindex = -1;
2602 continue; /* we're filtering out this font */
2605 sprintf(sizetext, "%d", info->size);
2606 info->sizeindex = listindex;
2607 gtk_list_store_append(fs->size_model, &iter);
2608 gtk_list_store_set(fs->size_model, &iter,
2609 0, sizetext, 1, i, 2, info->size, -1);
2617 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2618 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2619 gtk_list_store_append(fs->size_model, &iter);
2620 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2621 2, unifontsel_default_sizes[j], -1);
2628 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2632 for (i = 0; i < fs->n_filter_buttons; i++) {
2633 int flagbit = GPOINTER_TO_INT(g_object_get_data
2634 (G_OBJECT(fs->filter_buttons[i]),
2636 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2637 !!(fs->filter_flags & flagbit));
2641 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2642 unifontsel_internal *fs)
2645 char *sizename = NULL;
2646 fontinfo *info = fs->selected;
2649 sizename = info->fontclass->scale_fontname
2650 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2651 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2652 sizename ? sizename : info->realname,
2653 FALSE, FALSE, 0, 0);
2657 #ifdef DRAW_TEXT_GDK
2658 if (dctx->type == DRAWTYPE_GDK) {
2659 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2660 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2661 fs->preview_width, fs->preview_height);
2662 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2665 #ifdef DRAW_TEXT_CAIRO
2666 if (dctx->type == DRAWTYPE_CAIRO) {
2667 cairo_set_source_rgb(dctx->u.cairo.cr,
2668 fs->preview_bg.red / 65535.0,
2669 fs->preview_bg.green / 65535.0,
2670 fs->preview_bg.blue / 65535.0);
2671 cairo_paint(dctx->u.cairo.cr);
2672 cairo_set_source_rgb(dctx->u.cairo.cr,
2673 fs->preview_fg.red / 65535.0,
2674 fs->preview_fg.green / 65535.0,
2675 fs->preview_fg.blue / 65535.0);
2681 * The pangram used here is rather carefully
2682 * constructed: it contains a sequence of very narrow
2683 * letters (`jil') and a pair of adjacent very wide
2686 * If the user selects a proportional font, it will be
2687 * coerced into fixed-width character cells when used
2688 * in the actual terminal window. We therefore display
2689 * it the same way in the preview pane, so as to show
2690 * it the way it will actually be displayed - and we
2691 * deliberately pick a pangram which will show the
2692 * resulting miskerning at its worst.
2694 * We aren't trying to sell people these fonts; we're
2695 * trying to let them make an informed choice. Better
2696 * that they find out the problems with using
2697 * proportional fonts in terminal windows here than
2698 * that they go to the effort of selecting their font
2699 * and _then_ realise it was a mistake.
2701 info->fontclass->draw_text(dctx, font,
2703 L"bankrupt jilted showmen quiz convex fogey",
2704 41, FALSE, FALSE, font->width);
2705 info->fontclass->draw_text(dctx, font,
2706 0, font->ascent + font->height,
2707 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2708 41, FALSE, FALSE, font->width);
2710 * The ordering of punctuation here is also selected
2711 * with some specific aims in mind. I put ` and '
2712 * together because some software (and people) still
2713 * use them as matched quotes no matter what Unicode
2714 * might say on the matter, so people can quickly
2715 * check whether they look silly in a candidate font.
2716 * The sequence #_@ is there to let people judge the
2717 * suitability of the underscore as an effectively
2718 * alphabetic character (since that's how it's often
2719 * used in practice, at least by programmers).
2721 info->fontclass->draw_text(dctx, font,
2722 0, font->ascent + font->height * 2,
2723 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2724 42, FALSE, FALSE, font->width);
2726 info->fontclass->destroy(font);
2732 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2734 unifont_drawctx dctx;
2737 #ifndef NO_BACKING_PIXMAPS
2738 target = fs->preview_pixmap;
2740 target = gtk_widget_get_window(fs->preview_area);
2742 if (!target) /* we may be called when we haven't created everything yet */
2745 dctx.type = DRAWTYPE_DEFAULT;
2746 #ifdef DRAW_TEXT_GDK
2747 if (dctx.type == DRAWTYPE_GDK) {
2748 dctx.u.gdk.target = target;
2749 dctx.u.gdk.gc = gdk_gc_new(target);
2752 #ifdef DRAW_TEXT_CAIRO
2753 if (dctx.type == DRAWTYPE_CAIRO) {
2754 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2755 dctx.u.cairo.cr = gdk_cairo_create(target);
2759 unifontsel_draw_preview_text_inner(&dctx, fs);
2761 #ifdef DRAW_TEXT_GDK
2762 if (dctx.type == DRAWTYPE_GDK) {
2763 gdk_gc_unref(dctx.u.gdk.gc);
2766 #ifdef DRAW_TEXT_CAIRO
2767 if (dctx.type == DRAWTYPE_CAIRO) {
2768 cairo_destroy(dctx.u.cairo.cr);
2772 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2776 static void unifontsel_select_font(unifontsel_internal *fs,
2777 fontinfo *info, int size, int leftlist,
2778 int size_is_explicit)
2783 GtkTreePath *treepath;
2786 fs->inhibit_response = TRUE;
2788 fs->selected = info;
2790 if (size_is_explicit)
2791 fs->intendedsize = size;
2793 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2796 * Find the index of this fontinfo in the selorder list.
2799 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2803 * Adjust the font selector flags and redo the font family
2804 * list box, if necessary.
2806 if (leftlist <= 0 &&
2807 (fs->filter_flags | info->flags) != fs->filter_flags) {
2808 fs->filter_flags |= info->flags;
2809 unifontsel_set_filter_buttons(fs);
2810 unifontsel_setup_familylist(fs);
2814 * Find the appropriate family name and select it in the list.
2816 assert(info->familyindex >= 0);
2817 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2818 gtk_tree_selection_select_path
2819 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2821 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2822 treepath, NULL, FALSE, 0.0, 0.0);
2823 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2826 gtk_tree_path_free(treepath);
2829 * Now set up the font style list.
2831 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2832 1, &minval, 2, &maxval, -1);
2834 unifontsel_setup_stylelist(fs, minval, maxval);
2837 * Find the appropriate style name and select it in the list.
2840 assert(info->styleindex >= 0);
2841 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2842 gtk_tree_selection_select_path
2843 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2845 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2846 treepath, NULL, FALSE, 0.0, 0.0);
2847 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2849 gtk_tree_path_free(treepath);
2852 * And set up the size list.
2854 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2855 1, &minval, 2, &maxval, -1);
2857 unifontsel_setup_sizelist(fs, minval, maxval);
2860 * Find the appropriate size, and select it in the list.
2863 assert(info->sizeindex >= 0);
2864 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2865 gtk_tree_selection_select_path
2866 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2868 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2869 treepath, NULL, FALSE, 0.0, 0.0);
2870 gtk_tree_path_free(treepath);
2874 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2875 if (unifontsel_default_sizes[j] == size) {
2876 treepath = gtk_tree_path_new_from_indices(j, -1);
2877 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2878 treepath, NULL, FALSE);
2879 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2880 treepath, NULL, FALSE, 0.0,
2882 gtk_tree_path_free(treepath);
2887 * And set up the font size text entry box.
2891 sprintf(sizetext, "%d", size);
2892 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2896 unifontsel_setup_sizelist(fs, 0, 0);
2897 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2901 * Grey out the font size edit box if we're not using a
2904 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2905 fs->selected->size == 0);
2906 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2908 unifontsel_draw_preview_text(fs);
2910 fs->inhibit_response = FALSE;
2913 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2915 unifontsel_internal *fs = (unifontsel_internal *)data;
2916 int newstate = gtk_toggle_button_get_active(tb);
2918 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2922 newflags = fs->filter_flags | flagbit;
2924 newflags = fs->filter_flags & ~flagbit;
2926 if (fs->filter_flags != newflags) {
2927 fs->filter_flags = newflags;
2928 unifontsel_setup_familylist(fs);
2932 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2933 const char *family, const char *charset,
2934 const char *style, const char *stylekey,
2935 int size, int flags,
2936 const struct unifont_vtable *fontclass)
2938 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2943 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2944 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2945 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2946 info = (fontinfo *)smalloc(totalsize);
2947 info->fontclass = fontclass;
2948 p = (char *)info + sizeof(fontinfo);
2950 strcpy(p, realfontname);
2957 info->family = NULL;
2963 info->charset = NULL;
2972 strcpy(p, stylekey);
2975 info->stylekey = NULL;
2976 assert(p - (char *)info <= totalsize);
2978 info->flags = flags;
2979 info->index = count234(fs->fonts_by_selorder);
2982 * It's just conceivable that a misbehaving font enumerator
2983 * might tell us about the same font real name more than once,
2984 * in which case we should silently drop the new one.
2986 if (add234(fs->fonts_by_realname, info) != info) {
2991 * However, we should never get a duplicate key in the
2992 * selorder tree, because the index field carefully
2993 * disambiguates otherwise identical records.
2995 add234(fs->fonts_by_selorder, info);
2998 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
3001 fontinfo info2, *below, *above;
3005 * Copy the info structure. This doesn't copy its dynamic
3006 * string fields, but that's unimportant because all we're
3007 * going to do is to adjust the size field and use it in one
3011 info2.size = fs->intendedsize;
3014 * Search in the tree to find the fontinfo structure which
3015 * best approximates the size the user last requested.
3017 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
3021 above = index234(fs->fonts_by_selorder, pos+1);
3024 * See if we've found it exactly, which is an easy special
3025 * case. If we have, it'll be in `below' and not `above',
3026 * because we did a REL234_LE rather than REL234_LT search.
3028 if (below && !fontinfo_selorder_compare(&info2, below))
3032 * Now we've either found two suitable fonts, one smaller and
3033 * one larger, or we're at one or other extreme end of the
3034 * scale. Find out which, by NULLing out either of below and
3035 * above if it differs from this one in any respect but size
3036 * (and the disambiguating index field). Bear in mind, also,
3037 * that either one might _already_ be NULL if we're at the
3038 * extreme ends of the font list.
3041 info2.size = below->size;
3042 info2.index = below->index;
3043 if (fontinfo_selorder_compare(&info2, below))
3047 info2.size = above->size;
3048 info2.index = above->index;
3049 if (fontinfo_selorder_compare(&info2, above))
3054 * Now return whichever of above and below is non-NULL, if
3055 * that's unambiguous.
3063 * And now we really do have to make a choice about whether to
3064 * round up or down. We'll do it by rounding to nearest,
3065 * breaking ties by rounding up.
3067 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
3073 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
3075 unifontsel_internal *fs = (unifontsel_internal *)data;
3076 GtkTreeModel *treemodel;
3077 GtkTreeIter treeiter;
3081 if (fs->inhibit_response) /* we made this change ourselves */
3084 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3087 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
3088 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3089 info = update_for_intended_size(fs, info);
3091 return; /* _shouldn't_ happen unless font list is completely funted */
3093 fs->selsize = fs->intendedsize; /* font is scalable */
3094 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
3098 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
3100 unifontsel_internal *fs = (unifontsel_internal *)data;
3101 GtkTreeModel *treemodel;
3102 GtkTreeIter treeiter;
3106 if (fs->inhibit_response) /* we made this change ourselves */
3109 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3112 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
3114 return; /* somehow a charset heading got clicked */
3115 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3116 info = update_for_intended_size(fs, info);
3118 return; /* _shouldn't_ happen unless font list is completely funted */
3120 fs->selsize = fs->intendedsize; /* font is scalable */
3121 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
3125 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
3127 unifontsel_internal *fs = (unifontsel_internal *)data;
3128 GtkTreeModel *treemodel;
3129 GtkTreeIter treeiter;
3133 if (fs->inhibit_response) /* we made this change ourselves */
3136 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3139 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
3140 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3141 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
3144 static void size_entry_changed(GtkEditable *ed, gpointer data)
3146 unifontsel_internal *fs = (unifontsel_internal *)data;
3150 if (fs->inhibit_response) /* we made this change ourselves */
3153 text = gtk_entry_get_text(GTK_ENTRY(ed));
3157 assert(fs->selected->size == 0);
3158 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
3162 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
3163 GtkTreeViewColumn *column, gpointer data)
3165 unifontsel_internal *fs = (unifontsel_internal *)data;
3167 int minval, newsize;
3168 fontinfo *info, *newinfo;
3171 if (fs->inhibit_response) /* we made this change ourselves */
3174 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
3175 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
3176 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3179 struct fontinfo_realname_find f;
3181 newname = info->fontclass->canonify_fontname
3182 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
3184 f.realname = newname;
3186 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3190 return; /* font name not in our index */
3191 if (newinfo == info)
3192 return; /* didn't change under canonification => not an alias */
3193 unifontsel_select_font(fs, newinfo,
3194 newinfo->size ? newinfo->size : newsize,
3199 #if GTK_CHECK_VERSION(3,0,0)
3200 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
3202 unifontsel_internal *fs = (unifontsel_internal *)data;
3203 unifont_drawctx dctx;
3205 dctx.type = DRAWTYPE_CAIRO;
3206 dctx.u.cairo.widget = widget;
3207 dctx.u.cairo.cr = cr;
3208 unifontsel_draw_preview_text_inner(&dctx, fs);
3213 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
3216 unifontsel_internal *fs = (unifontsel_internal *)data;
3218 #ifndef NO_BACKING_PIXMAPS
3219 if (fs->preview_pixmap) {
3220 gdk_draw_pixmap(gtk_widget_get_window(widget),
3221 (gtk_widget_get_style(widget)->fg_gc
3222 [gtk_widget_get_state(widget)]),
3224 event->area.x, event->area.y,
3225 event->area.x, event->area.y,
3226 event->area.width, event->area.height);
3229 unifontsel_draw_preview_text(fs);
3236 static gint unifontsel_configure_area(GtkWidget *widget,
3237 GdkEventConfigure *event, gpointer data)
3239 #ifndef NO_BACKING_PIXMAPS
3240 unifontsel_internal *fs = (unifontsel_internal *)data;
3241 int ox, oy, nx, ny, x, y;
3244 * Enlarge the pixmap, but never shrink it.
3246 ox = fs->preview_width;
3247 oy = fs->preview_height;
3250 if (x > ox || y > oy) {
3251 if (fs->preview_pixmap)
3252 gdk_pixmap_unref(fs->preview_pixmap);
3254 nx = (x > ox ? x : ox);
3255 ny = (y > oy ? y : oy);
3256 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
3258 fs->preview_width = nx;
3259 fs->preview_height = ny;
3261 unifontsel_draw_preview_text(fs);
3265 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
3270 unifontsel *unifontsel_new(const char *wintitle)
3272 unifontsel_internal *fs = snew(unifontsel_internal);
3273 GtkWidget *table, *label, *w, *ww, *scroll;
3274 GtkListStore *model;
3275 GtkTreeViewColumn *column;
3276 int lists_height, preview_height, font_width, style_width, size_width;
3279 fs->inhibit_response = FALSE;
3280 fs->selected = NULL;
3286 * Invent some magic size constants.
3288 get_label_text_dimensions("Quite Long Font Name (Foundry)",
3291 lists_height = 14 * height;
3292 preview_height = 5 * height;
3294 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
3295 style_width = width;
3297 get_label_text_dimensions("48000", &width, &height);
3302 * Create the dialog box and initialise the user-visible
3303 * fields in the returned structure.
3305 fs->u.user_data = NULL;
3306 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3307 gtk_window_set_title(fs->u.window, wintitle);
3308 fs->u.cancel_button = gtk_dialog_add_button
3309 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3310 fs->u.ok_button = gtk_dialog_add_button
3311 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3312 gtk_widget_grab_default(fs->u.ok_button);
3315 * Now set up the internal fields, including in particular all
3316 * the controls that actually allow the user to select fonts.
3318 #if GTK_CHECK_VERSION(3,0,0)
3319 table = gtk_grid_new();
3320 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3322 table = gtk_table_new(8, 3, FALSE);
3323 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3325 gtk_widget_show(table);
3327 #if GTK_CHECK_VERSION(3,0,0)
3328 /* GtkAlignment has become deprecated and we use the "margin"
3331 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3332 #elif GTK_CHECK_VERSION(2,4,0)
3333 /* GtkAlignment seems to be the simplest way to put padding round things */
3334 w = gtk_alignment_new(0, 0, 1, 1);
3335 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3336 gtk_container_add(GTK_CONTAINER(w), table);
3339 /* In GTK < 2.4, even that isn't available */
3343 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3344 (GTK_DIALOG(fs->u.window))),
3347 label = gtk_label_new_with_mnemonic("_Font:");
3348 gtk_widget_show(label);
3349 align_label_left(GTK_LABEL(label));
3350 #if GTK_CHECK_VERSION(3,0,0)
3351 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3352 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3354 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3358 * The Font list box displays only a string, but additionally
3359 * stores two integers which give the limits within the
3360 * tree234 of the font entries covered by this list entry.
3362 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3363 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3364 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3365 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3367 column = gtk_tree_view_column_new_with_attributes
3368 ("Font", gtk_cell_renderer_text_new(),
3369 "text", 0, (char *)NULL);
3370 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3371 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3372 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3373 "changed", G_CALLBACK(family_changed), fs);
3374 g_signal_connect(G_OBJECT(w), "row-activated",
3375 G_CALLBACK(alias_resolve), fs);
3377 scroll = gtk_scrolled_window_new(NULL, NULL);
3378 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3380 gtk_container_add(GTK_CONTAINER(scroll), w);
3381 gtk_widget_show(scroll);
3382 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3383 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3384 gtk_widget_set_size_request(scroll, font_width, lists_height);
3385 #if GTK_CHECK_VERSION(3,0,0)
3386 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3387 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3389 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3390 GTK_EXPAND | GTK_FILL, 0, 0);
3392 fs->family_model = model;
3393 fs->family_list = w;
3395 label = gtk_label_new_with_mnemonic("_Style:");
3396 gtk_widget_show(label);
3397 align_label_left(GTK_LABEL(label));
3398 #if GTK_CHECK_VERSION(3,0,0)
3399 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3400 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3402 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3406 * The Style list box can contain insensitive elements (character
3407 * set headings for server-side fonts), so we add an extra column
3408 * to the list store to hold that information. Also, since GTK3 at
3409 * least doesn't seem to display insensitive elements differently
3410 * by default, we add a further column to change their style.
3412 model = gtk_list_store_new(5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3413 G_TYPE_BOOLEAN, G_TYPE_INT);
3414 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3415 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3416 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3418 column = gtk_tree_view_column_new_with_attributes
3419 ("Style", gtk_cell_renderer_text_new(),
3420 "text", 0, "sensitive", 3, "weight", 4, (char *)NULL);
3421 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3422 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3423 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3424 "changed", G_CALLBACK(style_changed), fs);
3426 scroll = gtk_scrolled_window_new(NULL, NULL);
3427 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3429 gtk_container_add(GTK_CONTAINER(scroll), w);
3430 gtk_widget_show(scroll);
3431 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3432 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3433 gtk_widget_set_size_request(scroll, style_width, lists_height);
3434 #if GTK_CHECK_VERSION(3,0,0)
3435 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3436 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3438 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3439 GTK_EXPAND | GTK_FILL, 0, 0);
3441 fs->style_model = model;
3444 label = gtk_label_new_with_mnemonic("Si_ze:");
3445 gtk_widget_show(label);
3446 align_label_left(GTK_LABEL(label));
3447 #if GTK_CHECK_VERSION(3,0,0)
3448 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3449 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3451 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3455 * The Size label attaches primarily to a text input box so
3456 * that the user can select a size of their choice. The list
3457 * of available sizes is secondary.
3459 fs->size_entry = w = gtk_entry_new();
3460 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3461 gtk_widget_set_size_request(w, size_width, -1);
3463 #if GTK_CHECK_VERSION(3,0,0)
3464 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3465 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3467 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3469 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3472 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3473 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3474 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3476 column = gtk_tree_view_column_new_with_attributes
3477 ("Size", gtk_cell_renderer_text_new(),
3478 "text", 0, (char *)NULL);
3479 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3480 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3481 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3482 "changed", G_CALLBACK(size_changed), fs);
3484 scroll = gtk_scrolled_window_new(NULL, NULL);
3485 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3487 gtk_container_add(GTK_CONTAINER(scroll), w);
3488 gtk_widget_show(scroll);
3489 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3490 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3491 #if GTK_CHECK_VERSION(3,0,0)
3492 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3493 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3495 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3496 GTK_EXPAND | GTK_FILL, 0, 0);
3498 fs->size_model = model;
3504 fs->preview_area = gtk_drawing_area_new();
3505 #ifndef NO_BACKING_PIXMAPS
3506 fs->preview_pixmap = NULL;
3508 fs->preview_width = 0;
3509 fs->preview_height = 0;
3510 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3511 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3512 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3513 #if !GTK_CHECK_VERSION(3,0,0)
3514 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3516 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3519 #if GTK_CHECK_VERSION(3,0,0)
3520 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3521 G_CALLBACK(unifontsel_draw_area), fs);
3523 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3524 G_CALLBACK(unifontsel_expose_area), fs);
3526 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3527 G_CALLBACK(unifontsel_configure_area), fs);
3528 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3529 gtk_widget_show(fs->preview_area);
3530 ww = fs->preview_area;
3531 w = gtk_frame_new(NULL);
3532 gtk_container_add(GTK_CONTAINER(w), ww);
3535 #if GTK_CHECK_VERSION(3,0,0)
3536 /* GtkAlignment has become deprecated and we use the "margin"
3538 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3539 #elif GTK_CHECK_VERSION(2,4,0)
3541 /* GtkAlignment seems to be the simplest way to put padding round things */
3542 w = gtk_alignment_new(0, 0, 1, 1);
3543 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3544 gtk_container_add(GTK_CONTAINER(w), ww);
3549 w = gtk_frame_new("Preview of font");
3550 gtk_container_add(GTK_CONTAINER(w), ww);
3552 #if GTK_CHECK_VERSION(3,0,0)
3553 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3554 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3556 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3557 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3561 * We only provide the checkboxes for client- and server-side
3562 * fonts if we have the X11 back end available, because that's the
3563 * only situation in which more than one class of font is
3566 fs->n_filter_buttons = 0;
3567 #ifndef NOT_X_WINDOWS
3568 w = gtk_check_button_new_with_label("Show client-side fonts");
3569 g_object_set_data(G_OBJECT(w), "user-data",
3570 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3571 g_signal_connect(G_OBJECT(w), "toggled",
3572 G_CALLBACK(unifontsel_button_toggled), fs);
3574 fs->filter_buttons[fs->n_filter_buttons++] = w;
3575 #if GTK_CHECK_VERSION(3,0,0)
3576 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3577 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3579 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3581 w = gtk_check_button_new_with_label("Show server-side fonts");
3582 g_object_set_data(G_OBJECT(w), "user-data",
3583 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3584 g_signal_connect(G_OBJECT(w), "toggled",
3585 G_CALLBACK(unifontsel_button_toggled), fs);
3587 fs->filter_buttons[fs->n_filter_buttons++] = w;
3588 #if GTK_CHECK_VERSION(3,0,0)
3589 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3590 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3592 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3594 w = gtk_check_button_new_with_label("Show server-side font aliases");
3595 g_object_set_data(G_OBJECT(w), "user-data",
3596 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3597 g_signal_connect(G_OBJECT(w), "toggled",
3598 G_CALLBACK(unifontsel_button_toggled), fs);
3600 fs->filter_buttons[fs->n_filter_buttons++] = w;
3601 #if GTK_CHECK_VERSION(3,0,0)
3602 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3603 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3605 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3607 #endif /* NOT_X_WINDOWS */
3608 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3609 g_object_set_data(G_OBJECT(w), "user-data",
3610 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3611 g_signal_connect(G_OBJECT(w), "toggled",
3612 G_CALLBACK(unifontsel_button_toggled), fs);
3614 fs->filter_buttons[fs->n_filter_buttons++] = w;
3615 #if GTK_CHECK_VERSION(3,0,0)
3616 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3617 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3619 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3622 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3623 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3624 FONTFLAG_SERVERALIAS;
3625 unifontsel_set_filter_buttons(fs);
3628 * Go and find all the font names, and set up our master font
3631 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3632 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3633 for (i = 0; i < lenof(unifont_types); i++)
3634 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3635 unifontsel_add_entry, fs);
3638 * And set up the initial font names list.
3640 unifontsel_setup_familylist(fs);
3642 fs->selsize = fs->intendedsize = 13; /* random default */
3643 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3645 return (unifontsel *)fs;
3648 void unifontsel_destroy(unifontsel *fontsel)
3650 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3653 #ifndef NO_BACKING_PIXMAPS
3654 if (fs->preview_pixmap)
3655 gdk_pixmap_unref(fs->preview_pixmap);
3658 freetree234(fs->fonts_by_selorder);
3659 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3661 freetree234(fs->fonts_by_realname);
3663 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3667 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3669 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3670 int i, start, end, size, flags;
3671 const char *fontname2 = NULL;
3675 * Provide a default if given an empty or null font name.
3677 if (!fontname || !*fontname)
3678 fontname = DEFAULT_GTK_FONT;
3681 * Call the canonify_fontname function.
3683 fontname = unifont_do_prefix(fontname, &start, &end);
3684 for (i = start; i < end; i++) {
3685 fontname2 = unifont_types[i]->canonify_fontname
3686 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3691 return; /* font name not recognised */
3694 * Now look up the canonified font name in our index.
3697 struct fontinfo_realname_find f;
3698 f.realname = fontname2;
3700 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3704 * If we've found the font, and its size field is either
3705 * correct or zero (the latter indicating a scalable font),
3706 * then we're done. Otherwise, try looking up the original
3707 * font name instead.
3709 if (!info || (info->size != size && info->size != 0)) {
3710 struct fontinfo_realname_find f;
3711 f.realname = fontname;
3714 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3715 if (!info || info->size != size)
3716 return; /* font name not in our index */
3720 * Now we've got a fontinfo structure and a font size, so we
3721 * know everything we need to fill in all the fields in the
3724 unifontsel_select_font(fs, info, size, 0, TRUE);
3727 char *unifontsel_get_name(unifontsel *fontsel)
3729 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3735 if (fs->selected->size == 0) {
3736 name = fs->selected->fontclass->scale_fontname
3737 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3739 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3746 return dupcat(fs->selected->fontclass->prefix, ":",
3747 fs->selected->realname, NULL);
3750 #endif /* GTK_CHECK_VERSION(2,0,0) */