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 returned_name = xlfd_recompose(xlfd_best);
1265 XFreeFontNames(fontnames);
1269 return returned_name;
1272 #endif /* NOT_X_WINDOWS */
1274 #if GTK_CHECK_VERSION(2,0,0)
1276 /* ----------------------------------------------------------------------
1277 * Pango font implementation (for GTK 2 only).
1280 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1281 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1284 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1285 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1286 int x, int y, const wchar_t *string, int len,
1287 int wide, int bold, int cellwidth);
1288 static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
1289 int x, int y, const wchar_t *string,
1290 int len, int wide, int bold,
1292 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1294 int shadowoffset, int shadowalways);
1295 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1297 int shadowoffset, int shadowalways);
1298 static void pangofont_destroy(unifont *font);
1299 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1300 void *callback_ctx);
1301 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1302 int *size, int *flags,
1303 int resolve_aliases);
1304 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1306 static char *pangofont_size_increment(unifont *font, int increment);
1313 PangoFontDescription *desc;
1316 * The containing widget.
1320 * Data passed in to unifont_create().
1322 int bold, shadowoffset, shadowalways;
1324 * Cache of character widths, indexed by Unicode code point. In
1325 * pixels; -1 means we haven't asked Pango about this character
1329 unsigned nwidthcache;
1332 static const struct unifont_vtable pangofont_vtable = {
1334 pangofont_create_fallback,
1336 pangofont_has_glyph,
1337 pangofont_draw_text,
1338 pangofont_draw_combining,
1339 pangofont_enum_fonts,
1340 pangofont_canonify_fontname,
1341 pangofont_scale_fontname,
1342 pangofont_size_increment,
1347 * This function is used to rigorously validate a
1348 * PangoFontDescription. Later versions of Pango have a nasty
1349 * habit of accepting _any_ old string as input to
1350 * pango_font_description_from_string and returning a font
1351 * description which can actually be used to display text, even if
1352 * they have to do it by falling back to their most default font.
1353 * This is doubtless helpful in some situations, but not here,
1354 * because we need to know if a Pango font string actually _makes
1355 * sense_ in order to fall back to treating it as an X font name
1356 * if it doesn't. So we check that the font family is actually one
1357 * supported by Pango.
1359 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1360 PangoFontDescription *desc)
1362 #ifndef PANGO_PRE_1POINT6
1365 PangoFontFamily **families;
1366 int i, nfamilies, matched;
1369 * Ask Pango for a list of font families, and iterate through
1370 * them to see if one of them matches the family in the
1371 * PangoFontDescription.
1373 #ifndef PANGO_PRE_1POINT6
1374 map = pango_context_get_font_map(ctx);
1377 pango_font_map_list_families(map, &families, &nfamilies);
1379 pango_context_list_families(ctx, &families, &nfamilies);
1383 for (i = 0; i < nfamilies; i++) {
1384 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1385 pango_font_description_get_family(desc))) {
1395 static unifont *pangofont_create_internal(GtkWidget *widget,
1397 PangoFontDescription *desc,
1399 int shadowoffset, int shadowalways)
1401 struct pangofont *pfont;
1402 #ifndef PANGO_PRE_1POINT6
1406 PangoFontMetrics *metrics;
1408 #ifndef PANGO_PRE_1POINT6
1409 map = pango_context_get_font_map(ctx);
1411 pango_font_description_free(desc);
1414 fset = pango_font_map_load_fontset(map, ctx, desc,
1415 pango_context_get_language(ctx));
1417 fset = pango_context_load_fontset(ctx, desc,
1418 pango_context_get_language(ctx));
1421 pango_font_description_free(desc);
1424 metrics = pango_fontset_get_metrics(fset);
1426 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1427 pango_font_description_free(desc);
1428 g_object_unref(fset);
1432 pfont = snew(struct pangofont);
1433 pfont->u.vt = &pangofont_vtable;
1435 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1436 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1437 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1438 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1439 pfont->u.want_fallback = FALSE;
1440 #ifdef DRAW_TEXT_CAIRO
1441 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1442 #elif defined DRAW_TEXT_GDK
1443 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1445 #error No drawtype available at all
1447 /* The Pango API is hardwired to UTF-8 */
1448 pfont->u.public_charset = CS_UTF8;
1451 pfont->widget = widget;
1453 pfont->shadowoffset = shadowoffset;
1454 pfont->shadowalways = shadowalways;
1455 pfont->widthcache = NULL;
1456 pfont->nwidthcache = 0;
1458 pango_font_metrics_unref(metrics);
1460 return (unifont *)pfont;
1463 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1465 int shadowoffset, int shadowalways)
1468 PangoFontDescription *desc;
1470 desc = pango_font_description_from_string(name);
1473 ctx = gtk_widget_get_pango_context(widget);
1475 pango_font_description_free(desc);
1478 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1479 pango_font_description_free(desc);
1482 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1483 shadowoffset, shadowalways);
1486 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1488 int shadowoffset, int shadowalways)
1491 PangoFontDescription *desc;
1493 desc = pango_font_description_from_string("Monospace");
1496 ctx = gtk_widget_get_pango_context(widget);
1498 pango_font_description_free(desc);
1501 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1502 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1503 shadowoffset, shadowalways);
1506 static void pangofont_destroy(unifont *font)
1508 struct pangofont *pfont = (struct pangofont *)font;
1509 pango_font_description_free(pfont->desc);
1510 sfree(pfont->widthcache);
1511 g_object_unref(pfont->fset);
1515 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1516 wchar_t uchr, const char *utfchr, int utflen)
1519 * Here we check whether a character has the same width as the
1520 * character cell it'll be drawn in. Because profiling showed that
1521 * asking Pango for text sizes was a huge bottleneck when we were
1522 * calling it every time we needed to know this, we instead call
1523 * it only on characters we don't already know about, and cache
1527 if ((unsigned)uchr >= pfont->nwidthcache) {
1528 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1529 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1530 while (pfont->nwidthcache < newsize)
1531 pfont->widthcache[pfont->nwidthcache++] = -1;
1534 if (pfont->widthcache[uchr] < 0) {
1535 PangoRectangle rect;
1536 pango_layout_set_text(layout, utfchr, utflen);
1537 pango_layout_get_extents(layout, NULL, &rect);
1538 pfont->widthcache[uchr] = rect.width;
1541 return pfont->widthcache[uchr];
1544 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1546 /* Pango implements font fallback, so assume it has everything */
1550 #ifdef DRAW_TEXT_GDK
1551 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1552 gint x, gint y, PangoLayout *layout)
1554 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1558 #ifdef DRAW_TEXT_CAIRO
1559 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1560 gint x, gint y, PangoLayout *layout)
1562 cairo_move_to(ctx->u.cairo.cr, x, y);
1563 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1567 static void pangofont_draw_internal(unifont_drawctx *ctx, unifont *font,
1568 int x, int y, const wchar_t *string,
1569 int len, int wide, int bold, int cellwidth,
1572 struct pangofont *pfont = (struct pangofont *)font;
1573 PangoLayout *layout;
1574 PangoRectangle rect;
1575 char *utfstring, *utfptr;
1577 int shadowbold = FALSE;
1578 void (*draw_layout)(unifont_drawctx *ctx,
1579 gint x, gint y, PangoLayout *layout) = NULL;
1581 #ifdef DRAW_TEXT_GDK
1582 if (ctx->type == DRAWTYPE_GDK) {
1583 draw_layout = pango_gdk_draw_layout;
1586 #ifdef DRAW_TEXT_CAIRO
1587 if (ctx->type == DRAWTYPE_CAIRO) {
1588 draw_layout = pango_cairo_draw_layout;
1595 y -= pfont->u.ascent;
1597 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1598 pango_layout_set_font_description(layout, pfont->desc);
1599 if (bold > pfont->bold) {
1600 if (pfont->shadowalways)
1603 PangoFontDescription *desc2 =
1604 pango_font_description_copy_static(pfont->desc);
1605 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1606 pango_layout_set_font_description(layout, desc2);
1611 * Pango always expects UTF-8, so convert the input wide character
1614 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1615 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1616 utfstring, len*6+1, ".", NULL, NULL);
1619 while (utflen > 0) {
1621 int desired = cellwidth * PANGO_SCALE;
1624 * We want to display every character from this string in
1625 * the centre of its own character cell. In the worst case,
1626 * this requires a separate text-drawing call for each
1627 * character; but in the common case where the font is
1628 * properly fixed-width, we can draw many characters in one
1629 * go which is much faster.
1631 * This still isn't really ideal. If you look at what
1632 * happens in the X protocol as a result of all of this, you
1633 * find - naturally enough - that each call to
1634 * gdk_draw_layout() generates a separate set of X RENDER
1635 * operations involving creating a picture, setting a clip
1636 * rectangle, doing some drawing and undoing the whole lot.
1637 * In an ideal world, we should _always_ be able to turn the
1638 * contents of this loop into a single RenderCompositeGlyphs
1639 * operation which internally specifies inter-character
1640 * deltas to get the spacing right, which would give us full
1641 * speed _even_ in the worst case of a non-fixed-width font.
1642 * However, Pango's architecture and documentation are so
1643 * unhelpful that I have no idea how if at all to persuade
1649 * For a character with combining stuff, we just dump the
1650 * whole lot in one go, and expect it to take up just one
1657 * Start by extracting a single UTF-8 character from the
1661 while (clen < utflen &&
1662 (unsigned char)utfptr[clen] >= 0x80 &&
1663 (unsigned char)utfptr[clen] < 0xC0)
1667 if (is_rtl(string[0]) ||
1668 pangofont_char_width(layout, pfont, string[n-1],
1669 utfptr, clen) != desired) {
1671 * If this character is a right-to-left one, or has an
1672 * unusual width, then we must display it on its own.
1676 * Try to amalgamate a contiguous string of characters
1677 * with the expected sensible width, for the common case
1678 * in which we're using a monospaced font and everything
1679 * works as expected.
1681 while (clen < utflen) {
1683 clen++; /* skip UTF-8 introducer byte */
1684 while (clen < utflen &&
1685 (unsigned char)utfptr[clen] >= 0x80 &&
1686 (unsigned char)utfptr[clen] < 0xC0)
1689 if (is_rtl(string[n-1]) ||
1690 pangofont_char_width(layout, pfont,
1691 string[n-1], utfptr + oldclen,
1692 clen - oldclen) != desired) {
1701 pango_layout_set_text(layout, utfptr, clen);
1702 pango_layout_get_pixel_extents(layout, NULL, &rect);
1705 x + (n*cellwidth - rect.width)/2,
1706 y + (pfont->u.height - rect.height)/2, layout);
1709 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1710 y + (pfont->u.height - rect.height)/2, layout);
1720 g_object_unref(layout);
1723 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1724 int x, int y, const wchar_t *string, int len,
1725 int wide, int bold, int cellwidth)
1727 pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
1731 static void pangofont_draw_combining(unifont_drawctx *ctx, unifont *font,
1732 int x, int y, const wchar_t *string,
1733 int len, int wide, int bold,
1736 wchar_t *tmpstring = NULL;
1737 if (mk_wcwidth(string[0]) == 0) {
1739 * If we've been told to draw a sequence of _only_ combining
1740 * characters, prefix a space so that they have something to
1743 tmpstring = snewn(len+1, wchar_t);
1744 memcpy(tmpstring+1, string, len * sizeof(wchar_t));
1745 tmpstring[0] = L' ';
1749 pangofont_draw_internal(ctx, font, x, y, string, len, wide, bold,
1755 * Dummy size value to be used when converting a
1756 * PangoFontDescription of a scalable font to a string for
1759 #define PANGO_DUMMY_SIZE 12
1761 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1765 #ifndef PANGO_PRE_1POINT6
1768 PangoFontFamily **families;
1771 ctx = gtk_widget_get_pango_context(widget);
1776 * Ask Pango for a list of font families, and iterate through
1779 #ifndef PANGO_PRE_1POINT6
1780 map = pango_context_get_font_map(ctx);
1783 pango_font_map_list_families(map, &families, &nfamilies);
1785 pango_context_list_families(ctx, &families, &nfamilies);
1787 for (i = 0; i < nfamilies; i++) {
1788 PangoFontFamily *family = families[i];
1789 const char *familyname;
1791 PangoFontFace **faces;
1795 * Set up our flags for this font family, and get the name
1798 flags = FONTFLAG_CLIENTSIDE;
1799 #ifndef PANGO_PRE_1POINT4
1801 * In very early versions of Pango, we can't tell
1802 * monospaced fonts from non-monospaced.
1804 if (!pango_font_family_is_monospace(family))
1805 flags |= FONTFLAG_NONMONOSPACED;
1807 familyname = pango_font_family_get_name(family);
1810 * Go through the available font faces in this family.
1812 pango_font_family_list_faces(family, &faces, &nfaces);
1813 for (j = 0; j < nfaces; j++) {
1814 PangoFontFace *face = faces[j];
1815 PangoFontDescription *desc;
1816 const char *facename;
1818 int k, nsizes, dummysize;
1821 * Get the face name string.
1823 facename = pango_font_face_get_face_name(face);
1826 * Set up a font description with what we've got so
1827 * far. We'll fill in the size field manually and then
1828 * call pango_font_description_to_string() to give the
1829 * full real name of the specific font.
1831 desc = pango_font_face_describe(face);
1834 * See if this font has a list of specific sizes.
1836 #ifndef PANGO_PRE_1POINT4
1837 pango_font_face_list_sizes(face, &sizes, &nsizes);
1840 * In early versions of Pango, that call wasn't
1841 * supported; we just have to assume everything is
1848 * Write a single entry with a dummy size.
1850 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1856 * If so, go through them one by one.
1858 for (k = 0; k < nsizes; k++) {
1862 pango_font_description_set_size(desc, sizes[k]);
1864 fullname = pango_font_description_to_string(desc);
1867 * Construct the sorting key for font styles.
1873 n = pango_font_description_get_weight(desc);
1874 /* Weight: normal, then lighter, then bolder */
1875 if (n <= PANGO_WEIGHT_NORMAL)
1876 n = PANGO_WEIGHT_NORMAL - n;
1877 p += sprintf(p, "%4d", n);
1879 n = pango_font_description_get_style(desc);
1880 p += sprintf(p, " %2d", n);
1882 n = pango_font_description_get_stretch(desc);
1883 /* Stretch: closer to normal sorts earlier */
1884 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1885 (n < PANGO_STRETCH_NORMAL);
1886 p += sprintf(p, " %2d", n);
1888 n = pango_font_description_get_variant(desc);
1889 p += sprintf(p, " %2d", n);
1894 * Got everything. Hand off to the callback.
1895 * (The charset string is NULL, because only
1896 * server-side X fonts use it.)
1898 callback(callback_ctx, fullname, familyname, NULL, facename,
1900 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1901 flags, &pangofont_vtable);
1905 if (sizes != &dummysize)
1908 pango_font_description_free(desc);
1915 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1916 int *size, int *flags,
1917 int resolve_aliases)
1920 * When given a Pango font name to try to make sense of for a
1921 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1922 * extract its original size (in pixels) into the `size' field.
1925 #ifndef PANGO_PRE_1POINT6
1928 PangoFontDescription *desc;
1930 PangoFontMetrics *metrics;
1931 char *newname, *retname;
1933 desc = pango_font_description_from_string(name);
1936 ctx = gtk_widget_get_pango_context(widget);
1938 pango_font_description_free(desc);
1941 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1942 pango_font_description_free(desc);
1945 #ifndef PANGO_PRE_1POINT6
1946 map = pango_context_get_font_map(ctx);
1948 pango_font_description_free(desc);
1951 fset = pango_font_map_load_fontset(map, ctx, desc,
1952 pango_context_get_language(ctx));
1954 fset = pango_context_load_fontset(ctx, desc,
1955 pango_context_get_language(ctx));
1958 pango_font_description_free(desc);
1961 metrics = pango_fontset_get_metrics(fset);
1963 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1964 pango_font_description_free(desc);
1965 g_object_unref(fset);
1969 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1970 *flags = FONTFLAG_CLIENTSIDE;
1971 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1972 newname = pango_font_description_to_string(desc);
1973 retname = dupstr(newname);
1976 pango_font_metrics_unref(metrics);
1977 pango_font_description_free(desc);
1978 g_object_unref(fset);
1983 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1986 PangoFontDescription *desc;
1987 char *newname, *retname;
1989 desc = pango_font_description_from_string(name);
1992 pango_font_description_set_size(desc, size * PANGO_SCALE);
1993 newname = pango_font_description_to_string(desc);
1994 retname = dupstr(newname);
1996 pango_font_description_free(desc);
2001 static char *pangofont_size_increment(unifont *font, int increment)
2003 struct pangofont *pfont = (struct pangofont *)font;
2004 PangoFontDescription *desc;
2006 char *newname, *retname;
2008 desc = pango_font_description_copy_static(pfont->desc);
2010 size = pango_font_description_get_size(desc);
2011 size += PANGO_SCALE * increment;
2016 pango_font_description_set_size(desc, size);
2017 newname = pango_font_description_to_string(desc);
2018 retname = dupstr(newname);
2022 pango_font_description_free(desc);
2026 #endif /* GTK_CHECK_VERSION(2,0,0) */
2028 /* ----------------------------------------------------------------------
2029 * Outermost functions which do the vtable dispatch.
2033 * Complete list of font-type subclasses. Listed in preference
2034 * order for unifont_create(). (That is, in the extremely unlikely
2035 * event that the same font name is valid as both a Pango and an
2036 * X11 font, it will be interpreted as the former in the absence
2037 * of an explicit type-disambiguating prefix.)
2039 * The 'multifont' subclass is omitted here, as discussed above.
2041 static const struct unifont_vtable *unifont_types[] = {
2042 #if GTK_CHECK_VERSION(2,0,0)
2045 #ifndef NOT_X_WINDOWS
2051 * Function which takes a font name and processes the optional
2052 * scheme prefix. Returns the tail of the font name suitable for
2053 * passing to individual font scheme functions, and also provides
2054 * a subrange of the unifont_types[] array above.
2056 * The return values `start' and `end' denote a half-open interval
2057 * in unifont_types[]; that is, the correct way to iterate over
2060 * for (i = start; i < end; i++) {...}
2062 static const char *unifont_do_prefix(const char *name, int *start, int *end)
2064 int colonpos = strcspn(name, ":");
2067 if (name[colonpos]) {
2069 * There's a colon prefix on the font name. Use it to work
2070 * out which subclass to use.
2072 for (i = 0; i < lenof(unifont_types); i++) {
2073 if (strlen(unifont_types[i]->prefix) == colonpos &&
2074 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
2077 return name + colonpos + 1;
2081 * None matched, so return an empty scheme list to prevent
2082 * any scheme from being called at all.
2085 return name + colonpos + 1;
2088 * No colon prefix, so just use all the subclasses.
2091 *end = lenof(unifont_types);
2096 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
2097 int bold, int shadowoffset, int shadowalways)
2101 name = unifont_do_prefix(name, &start, &end);
2103 for (i = start; i < end; i++) {
2104 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
2105 shadowoffset, shadowalways);
2109 return NULL; /* font not found in any scheme */
2112 void unifont_destroy(unifont *font)
2114 font->vt->destroy(font);
2117 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
2118 int x, int y, const wchar_t *string, int len,
2119 int wide, int bold, int cellwidth)
2121 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
2124 void unifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2125 int x, int y, const wchar_t *string, int len,
2126 int wide, int bold, int cellwidth)
2128 font->vt->draw_combining(ctx, font, x, y, string, len, wide, bold,
2132 char *unifont_size_increment(unifont *font, int increment)
2134 return font->vt->size_increment(font, increment);
2137 /* ----------------------------------------------------------------------
2138 * Multiple-font wrapper. This is a type of unifont which encapsulates
2139 * up to two other unifonts, permitting missing glyphs in the main
2140 * font to be filled in by a fallback font.
2142 * This is a type of unifont just like the previous two, but it has a
2143 * separate constructor which is manually called by the client, so it
2144 * doesn't appear in the list of available font types enumerated by
2145 * unifont_create. This means it's not used by unifontsel either, so
2146 * it doesn't need to support any methods except draw_text and
2150 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
2151 int x, int y, const wchar_t *string, int len,
2152 int wide, int bold, int cellwidth);
2153 static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2154 int x, int y, const wchar_t *string,
2155 int len, int wide, int bold,
2157 static void multifont_destroy(unifont *font);
2158 static char *multifont_size_increment(unifont *font, int increment);
2166 static const struct unifont_vtable multifont_vtable = {
2167 NULL, /* creation is done specially */
2171 multifont_draw_text,
2172 multifont_draw_combining,
2176 multifont_size_increment,
2180 unifont *multifont_create(GtkWidget *widget, const char *name,
2182 int shadowoffset, int shadowalways)
2185 unifont *font, *fallback;
2186 struct multifont *mfont;
2188 font = unifont_create(widget, name, wide, bold,
2189 shadowoffset, shadowalways);
2194 if (font->want_fallback) {
2195 for (i = 0; i < lenof(unifont_types); i++) {
2196 if (unifont_types[i]->create_fallback) {
2197 fallback = unifont_types[i]->create_fallback
2198 (widget, font->height, wide, bold,
2199 shadowoffset, shadowalways);
2207 * Construct our multifont. Public members are all copied from the
2208 * primary font we're wrapping.
2210 mfont = snew(struct multifont);
2211 mfont->u.vt = &multifont_vtable;
2212 mfont->u.width = font->width;
2213 mfont->u.ascent = font->ascent;
2214 mfont->u.descent = font->descent;
2215 mfont->u.height = font->height;
2216 mfont->u.public_charset = font->public_charset;
2217 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
2218 mfont->u.preferred_drawtype = font->preferred_drawtype;
2220 mfont->fallback = fallback;
2222 return (unifont *)mfont;
2225 static void multifont_destroy(unifont *font)
2227 struct multifont *mfont = (struct multifont *)font;
2228 unifont_destroy(mfont->main);
2229 if (mfont->fallback)
2230 unifont_destroy(mfont->fallback);
2234 typedef void (*unifont_draw_func_t)(unifont_drawctx *ctx, unifont *font,
2235 int x, int y, const wchar_t *string,
2236 int len, int wide, int bold,
2239 static void multifont_draw_main(unifont_drawctx *ctx, unifont *font, int x,
2240 int y, const wchar_t *string, int len,
2241 int wide, int bold, int cellwidth,
2242 int cellinc, unifont_draw_func_t draw)
2244 struct multifont *mfont = (struct multifont *)font;
2250 * Find a maximal sequence of characters which are, or are
2251 * not, supported by our main font.
2253 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
2256 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
2262 f = ok ? mfont->main : mfont->fallback;
2264 draw(ctx, f, x, y, string, i, wide, bold, cellwidth);
2271 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
2272 int y, const wchar_t *string, int len,
2273 int wide, int bold, int cellwidth)
2275 multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
2276 cellwidth, cellwidth, unifont_draw_text);
2279 static void multifont_draw_combining(unifont_drawctx *ctx, unifont *font,
2280 int x, int y, const wchar_t *string,
2281 int len, int wide, int bold,
2284 multifont_draw_main(ctx, font, x, y, string, len, wide, bold,
2285 cellwidth, 0, unifont_draw_combining);
2288 static char *multifont_size_increment(unifont *font, int increment)
2290 struct multifont *mfont = (struct multifont *)font;
2291 return unifont_size_increment(mfont->main, increment);
2294 #if GTK_CHECK_VERSION(2,0,0)
2296 /* ----------------------------------------------------------------------
2297 * Implementation of a unified font selector. Used on GTK 2 only;
2298 * for GTK 1 we still use the standard font selector.
2301 typedef struct fontinfo fontinfo;
2303 typedef struct unifontsel_internal {
2304 /* This must be the structure's first element, for cross-casting */
2306 GtkListStore *family_model, *style_model, *size_model;
2307 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2308 GtkWidget *filter_buttons[4];
2309 int n_filter_buttons;
2310 GtkWidget *preview_area;
2311 #ifndef NO_BACKING_PIXMAPS
2312 GdkPixmap *preview_pixmap;
2314 int preview_width, preview_height;
2315 GdkColor preview_fg, preview_bg;
2317 tree234 *fonts_by_realname, *fonts_by_selorder;
2319 int selsize, intendedsize;
2320 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2321 } unifontsel_internal;
2324 * The structure held in the tree234s. All the string members are
2325 * part of the same allocated area, so don't need freeing
2330 char *family, *charset, *style, *stylekey;
2333 * Fallback sorting key, to permit multiple identical entries
2334 * to exist in the selorder tree.
2338 * Indices mapping fontinfo structures to indices in the list
2339 * boxes. sizeindex is irrelevant if the font is scalable
2342 int familyindex, styleindex, sizeindex;
2344 * The class of font.
2346 const struct unifont_vtable *fontclass;
2349 struct fontinfo_realname_find {
2350 const char *realname;
2354 static int strnullcasecmp(const char *a, const char *b)
2359 * If exactly one of the inputs is NULL, it compares before
2362 if ((i = (!b) - (!a)) != 0)
2366 * NULL compares equal.
2372 * Otherwise, ordinary strcasecmp.
2374 return g_ascii_strcasecmp(a, b);
2377 static int fontinfo_realname_compare(void *av, void *bv)
2379 fontinfo *a = (fontinfo *)av;
2380 fontinfo *b = (fontinfo *)bv;
2383 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2385 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2386 return ((a->flags & FONTFLAG_SORT_MASK) <
2387 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2391 static int fontinfo_realname_find(void *av, void *bv)
2393 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2394 fontinfo *b = (fontinfo *)bv;
2397 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2399 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2400 return ((a->flags & FONTFLAG_SORT_MASK) <
2401 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2405 static int fontinfo_selorder_compare(void *av, void *bv)
2407 fontinfo *a = (fontinfo *)av;
2408 fontinfo *b = (fontinfo *)bv;
2410 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2413 * Font class comes immediately after family, so that fonts
2414 * from different classes with the same family
2416 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2417 return ((a->flags & FONTFLAG_SORT_MASK) <
2418 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2419 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2421 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2423 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2425 if (a->size != b->size)
2426 return (a->size < b->size ? -1 : +1);
2427 if (a->index != b->index)
2428 return (a->index < b->index ? -1 : +1);
2432 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2434 static void unifontsel_deselect(unifontsel_internal *fs)
2436 fs->selected = NULL;
2437 gtk_list_store_clear(fs->style_model);
2438 gtk_list_store_clear(fs->size_model);
2439 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2440 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2441 unifontsel_draw_preview_text(fs);
2444 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2447 int i, listindex, minpos = -1, maxpos = -1;
2448 char *currfamily = NULL;
2452 fs->inhibit_response = TRUE;
2454 gtk_list_store_clear(fs->family_model);
2458 * Search through the font tree for anything matching our
2459 * current filter criteria. When we find one, add its font
2460 * name to the list box.
2462 for (i = 0 ;; i++) {
2463 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2465 * info may be NULL if we've just run off the end of the
2466 * tree. We must still do a processing pass in that
2467 * situation, in case we had an unfinished font record in
2470 if (info && (info->flags &~ fs->filter_flags)) {
2471 info->familyindex = -1;
2472 continue; /* we're filtering out this font */
2474 if (!info || strnullcasecmp(currfamily, info->family) ||
2475 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2477 * We've either finished a family, or started a new
2481 gtk_list_store_append(fs->family_model, &iter);
2482 gtk_list_store_set(fs->family_model, &iter,
2483 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2488 currfamily = info->family;
2489 currflags = info->flags & FONTFLAG_SORT_MASK;
2493 break; /* now we're done */
2494 info->familyindex = listindex;
2499 * If we've just filtered out the previously selected font,
2500 * deselect it thoroughly.
2502 if (fs->selected && fs->selected->familyindex < 0)
2503 unifontsel_deselect(fs);
2505 fs->inhibit_response = FALSE;
2508 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2512 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2513 char *currcs = NULL, *currstyle = NULL;
2516 gtk_list_store_clear(fs->style_model);
2521 * Search through the font tree for anything matching our
2522 * current filter criteria. When we find one, add its charset
2523 * and/or style name to the list box.
2525 for (i = start; i <= end; i++) {
2529 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2531 * info may be NULL if we've just run off the end of the
2532 * relevant data. We must still do a processing pass in
2533 * that situation, in case we had an unfinished font
2534 * record in progress.
2536 if (info && (info->flags &~ fs->filter_flags)) {
2537 info->styleindex = -1;
2538 continue; /* we're filtering out this font */
2540 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2541 strnullcasecmp(currstyle, info->style)) {
2543 * We've either finished a style/charset, or started a
2548 gtk_list_store_append(fs->style_model, &iter);
2549 gtk_list_store_set(fs->style_model, &iter,
2550 0, currstyle, 1, minpos, 2, maxpos+1,
2551 3, TRUE, 4, PANGO_WEIGHT_NORMAL, -1);
2556 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2557 gtk_list_store_append(fs->style_model, &iter);
2558 gtk_list_store_set(fs->style_model, &iter,
2559 0, info->charset, 1, -1, 2, -1,
2560 3, FALSE, 4, PANGO_WEIGHT_BOLD, -1);
2563 currcs = info->charset;
2564 currstyle = info->style;
2568 break; /* now we're done */
2569 info->styleindex = listindex;
2574 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2576 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2584 gtk_list_store_clear(fs->size_model);
2588 * Search through the font tree for anything matching our
2589 * current filter criteria. When we find one, add its font
2590 * name to the list box.
2592 for (i = start; i < end; i++) {
2593 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2594 if (info->flags &~ fs->filter_flags) {
2595 info->sizeindex = -1;
2596 continue; /* we're filtering out this font */
2599 sprintf(sizetext, "%d", info->size);
2600 info->sizeindex = listindex;
2601 gtk_list_store_append(fs->size_model, &iter);
2602 gtk_list_store_set(fs->size_model, &iter,
2603 0, sizetext, 1, i, 2, info->size, -1);
2611 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2612 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2613 gtk_list_store_append(fs->size_model, &iter);
2614 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2615 2, unifontsel_default_sizes[j], -1);
2622 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2626 for (i = 0; i < fs->n_filter_buttons; i++) {
2627 int flagbit = GPOINTER_TO_INT(g_object_get_data
2628 (G_OBJECT(fs->filter_buttons[i]),
2630 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2631 !!(fs->filter_flags & flagbit));
2635 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2636 unifontsel_internal *fs)
2639 char *sizename = NULL;
2640 fontinfo *info = fs->selected;
2643 sizename = info->fontclass->scale_fontname
2644 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2645 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2646 sizename ? sizename : info->realname,
2647 FALSE, FALSE, 0, 0);
2651 #ifdef DRAW_TEXT_GDK
2652 if (dctx->type == DRAWTYPE_GDK) {
2653 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2654 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2655 fs->preview_width, fs->preview_height);
2656 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2659 #ifdef DRAW_TEXT_CAIRO
2660 if (dctx->type == DRAWTYPE_CAIRO) {
2661 cairo_set_source_rgb(dctx->u.cairo.cr,
2662 fs->preview_bg.red / 65535.0,
2663 fs->preview_bg.green / 65535.0,
2664 fs->preview_bg.blue / 65535.0);
2665 cairo_paint(dctx->u.cairo.cr);
2666 cairo_set_source_rgb(dctx->u.cairo.cr,
2667 fs->preview_fg.red / 65535.0,
2668 fs->preview_fg.green / 65535.0,
2669 fs->preview_fg.blue / 65535.0);
2675 * The pangram used here is rather carefully
2676 * constructed: it contains a sequence of very narrow
2677 * letters (`jil') and a pair of adjacent very wide
2680 * If the user selects a proportional font, it will be
2681 * coerced into fixed-width character cells when used
2682 * in the actual terminal window. We therefore display
2683 * it the same way in the preview pane, so as to show
2684 * it the way it will actually be displayed - and we
2685 * deliberately pick a pangram which will show the
2686 * resulting miskerning at its worst.
2688 * We aren't trying to sell people these fonts; we're
2689 * trying to let them make an informed choice. Better
2690 * that they find out the problems with using
2691 * proportional fonts in terminal windows here than
2692 * that they go to the effort of selecting their font
2693 * and _then_ realise it was a mistake.
2695 info->fontclass->draw_text(dctx, font,
2697 L"bankrupt jilted showmen quiz convex fogey",
2698 41, FALSE, FALSE, font->width);
2699 info->fontclass->draw_text(dctx, font,
2700 0, font->ascent + font->height,
2701 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2702 41, FALSE, FALSE, font->width);
2704 * The ordering of punctuation here is also selected
2705 * with some specific aims in mind. I put ` and '
2706 * together because some software (and people) still
2707 * use them as matched quotes no matter what Unicode
2708 * might say on the matter, so people can quickly
2709 * check whether they look silly in a candidate font.
2710 * The sequence #_@ is there to let people judge the
2711 * suitability of the underscore as an effectively
2712 * alphabetic character (since that's how it's often
2713 * used in practice, at least by programmers).
2715 info->fontclass->draw_text(dctx, font,
2716 0, font->ascent + font->height * 2,
2717 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2718 42, FALSE, FALSE, font->width);
2720 info->fontclass->destroy(font);
2726 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2728 unifont_drawctx dctx;
2731 #ifndef NO_BACKING_PIXMAPS
2732 target = fs->preview_pixmap;
2734 target = gtk_widget_get_window(fs->preview_area);
2736 if (!target) /* we may be called when we haven't created everything yet */
2739 dctx.type = DRAWTYPE_DEFAULT;
2740 #ifdef DRAW_TEXT_GDK
2741 if (dctx.type == DRAWTYPE_GDK) {
2742 dctx.u.gdk.target = target;
2743 dctx.u.gdk.gc = gdk_gc_new(target);
2746 #ifdef DRAW_TEXT_CAIRO
2747 if (dctx.type == DRAWTYPE_CAIRO) {
2748 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2749 dctx.u.cairo.cr = gdk_cairo_create(target);
2753 unifontsel_draw_preview_text_inner(&dctx, fs);
2755 #ifdef DRAW_TEXT_GDK
2756 if (dctx.type == DRAWTYPE_GDK) {
2757 gdk_gc_unref(dctx.u.gdk.gc);
2760 #ifdef DRAW_TEXT_CAIRO
2761 if (dctx.type == DRAWTYPE_CAIRO) {
2762 cairo_destroy(dctx.u.cairo.cr);
2766 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2770 static void unifontsel_select_font(unifontsel_internal *fs,
2771 fontinfo *info, int size, int leftlist,
2772 int size_is_explicit)
2777 GtkTreePath *treepath;
2780 fs->inhibit_response = TRUE;
2782 fs->selected = info;
2784 if (size_is_explicit)
2785 fs->intendedsize = size;
2787 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2790 * Find the index of this fontinfo in the selorder list.
2793 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2797 * Adjust the font selector flags and redo the font family
2798 * list box, if necessary.
2800 if (leftlist <= 0 &&
2801 (fs->filter_flags | info->flags) != fs->filter_flags) {
2802 fs->filter_flags |= info->flags;
2803 unifontsel_set_filter_buttons(fs);
2804 unifontsel_setup_familylist(fs);
2808 * Find the appropriate family name and select it in the list.
2810 assert(info->familyindex >= 0);
2811 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2812 gtk_tree_selection_select_path
2813 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2815 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2816 treepath, NULL, FALSE, 0.0, 0.0);
2817 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2820 gtk_tree_path_free(treepath);
2823 * Now set up the font style list.
2825 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2826 1, &minval, 2, &maxval, -1);
2828 unifontsel_setup_stylelist(fs, minval, maxval);
2831 * Find the appropriate style name and select it in the list.
2834 assert(info->styleindex >= 0);
2835 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2836 gtk_tree_selection_select_path
2837 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2839 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2840 treepath, NULL, FALSE, 0.0, 0.0);
2841 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2843 gtk_tree_path_free(treepath);
2846 * And set up the size list.
2848 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2849 1, &minval, 2, &maxval, -1);
2851 unifontsel_setup_sizelist(fs, minval, maxval);
2854 * Find the appropriate size, and select it in the list.
2857 assert(info->sizeindex >= 0);
2858 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2859 gtk_tree_selection_select_path
2860 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2862 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2863 treepath, NULL, FALSE, 0.0, 0.0);
2864 gtk_tree_path_free(treepath);
2868 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2869 if (unifontsel_default_sizes[j] == size) {
2870 treepath = gtk_tree_path_new_from_indices(j, -1);
2871 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2872 treepath, NULL, FALSE);
2873 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2874 treepath, NULL, FALSE, 0.0,
2876 gtk_tree_path_free(treepath);
2881 * And set up the font size text entry box.
2885 sprintf(sizetext, "%d", size);
2886 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2890 unifontsel_setup_sizelist(fs, 0, 0);
2891 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2895 * Grey out the font size edit box if we're not using a
2898 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2899 fs->selected->size == 0);
2900 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2902 unifontsel_draw_preview_text(fs);
2904 fs->inhibit_response = FALSE;
2907 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2909 unifontsel_internal *fs = (unifontsel_internal *)data;
2910 int newstate = gtk_toggle_button_get_active(tb);
2912 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2916 newflags = fs->filter_flags | flagbit;
2918 newflags = fs->filter_flags & ~flagbit;
2920 if (fs->filter_flags != newflags) {
2921 fs->filter_flags = newflags;
2922 unifontsel_setup_familylist(fs);
2926 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2927 const char *family, const char *charset,
2928 const char *style, const char *stylekey,
2929 int size, int flags,
2930 const struct unifont_vtable *fontclass)
2932 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2937 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2938 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2939 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2940 info = (fontinfo *)smalloc(totalsize);
2941 info->fontclass = fontclass;
2942 p = (char *)info + sizeof(fontinfo);
2944 strcpy(p, realfontname);
2951 info->family = NULL;
2957 info->charset = NULL;
2966 strcpy(p, stylekey);
2969 info->stylekey = NULL;
2970 assert(p - (char *)info <= totalsize);
2972 info->flags = flags;
2973 info->index = count234(fs->fonts_by_selorder);
2976 * It's just conceivable that a misbehaving font enumerator
2977 * might tell us about the same font real name more than once,
2978 * in which case we should silently drop the new one.
2980 if (add234(fs->fonts_by_realname, info) != info) {
2985 * However, we should never get a duplicate key in the
2986 * selorder tree, because the index field carefully
2987 * disambiguates otherwise identical records.
2989 add234(fs->fonts_by_selorder, info);
2992 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2995 fontinfo info2, *below, *above;
2999 * Copy the info structure. This doesn't copy its dynamic
3000 * string fields, but that's unimportant because all we're
3001 * going to do is to adjust the size field and use it in one
3005 info2.size = fs->intendedsize;
3008 * Search in the tree to find the fontinfo structure which
3009 * best approximates the size the user last requested.
3011 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
3015 above = index234(fs->fonts_by_selorder, pos+1);
3018 * See if we've found it exactly, which is an easy special
3019 * case. If we have, it'll be in `below' and not `above',
3020 * because we did a REL234_LE rather than REL234_LT search.
3022 if (below && !fontinfo_selorder_compare(&info2, below))
3026 * Now we've either found two suitable fonts, one smaller and
3027 * one larger, or we're at one or other extreme end of the
3028 * scale. Find out which, by NULLing out either of below and
3029 * above if it differs from this one in any respect but size
3030 * (and the disambiguating index field). Bear in mind, also,
3031 * that either one might _already_ be NULL if we're at the
3032 * extreme ends of the font list.
3035 info2.size = below->size;
3036 info2.index = below->index;
3037 if (fontinfo_selorder_compare(&info2, below))
3041 info2.size = above->size;
3042 info2.index = above->index;
3043 if (fontinfo_selorder_compare(&info2, above))
3048 * Now return whichever of above and below is non-NULL, if
3049 * that's unambiguous.
3057 * And now we really do have to make a choice about whether to
3058 * round up or down. We'll do it by rounding to nearest,
3059 * breaking ties by rounding up.
3061 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
3067 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
3069 unifontsel_internal *fs = (unifontsel_internal *)data;
3070 GtkTreeModel *treemodel;
3071 GtkTreeIter treeiter;
3075 if (fs->inhibit_response) /* we made this change ourselves */
3078 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3081 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
3082 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3083 info = update_for_intended_size(fs, info);
3085 return; /* _shouldn't_ happen unless font list is completely funted */
3087 fs->selsize = fs->intendedsize; /* font is scalable */
3088 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
3092 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
3094 unifontsel_internal *fs = (unifontsel_internal *)data;
3095 GtkTreeModel *treemodel;
3096 GtkTreeIter treeiter;
3100 if (fs->inhibit_response) /* we made this change ourselves */
3103 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3106 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
3108 return; /* somehow a charset heading got clicked */
3109 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3110 info = update_for_intended_size(fs, info);
3112 return; /* _shouldn't_ happen unless font list is completely funted */
3114 fs->selsize = fs->intendedsize; /* font is scalable */
3115 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
3119 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
3121 unifontsel_internal *fs = (unifontsel_internal *)data;
3122 GtkTreeModel *treemodel;
3123 GtkTreeIter treeiter;
3127 if (fs->inhibit_response) /* we made this change ourselves */
3130 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
3133 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
3134 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3135 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
3138 static void size_entry_changed(GtkEditable *ed, gpointer data)
3140 unifontsel_internal *fs = (unifontsel_internal *)data;
3144 if (fs->inhibit_response) /* we made this change ourselves */
3147 text = gtk_entry_get_text(GTK_ENTRY(ed));
3151 assert(fs->selected->size == 0);
3152 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
3156 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
3157 GtkTreeViewColumn *column, gpointer data)
3159 unifontsel_internal *fs = (unifontsel_internal *)data;
3161 int minval, newsize;
3162 fontinfo *info, *newinfo;
3165 if (fs->inhibit_response) /* we made this change ourselves */
3168 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
3169 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
3170 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
3173 struct fontinfo_realname_find f;
3175 newname = info->fontclass->canonify_fontname
3176 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
3178 f.realname = newname;
3180 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3184 return; /* font name not in our index */
3185 if (newinfo == info)
3186 return; /* didn't change under canonification => not an alias */
3187 unifontsel_select_font(fs, newinfo,
3188 newinfo->size ? newinfo->size : newsize,
3193 #if GTK_CHECK_VERSION(3,0,0)
3194 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
3196 unifontsel_internal *fs = (unifontsel_internal *)data;
3197 unifont_drawctx dctx;
3199 dctx.type = DRAWTYPE_CAIRO;
3200 dctx.u.cairo.widget = widget;
3201 dctx.u.cairo.cr = cr;
3202 unifontsel_draw_preview_text_inner(&dctx, fs);
3207 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
3210 unifontsel_internal *fs = (unifontsel_internal *)data;
3212 #ifndef NO_BACKING_PIXMAPS
3213 if (fs->preview_pixmap) {
3214 gdk_draw_pixmap(gtk_widget_get_window(widget),
3215 (gtk_widget_get_style(widget)->fg_gc
3216 [gtk_widget_get_state(widget)]),
3218 event->area.x, event->area.y,
3219 event->area.x, event->area.y,
3220 event->area.width, event->area.height);
3223 unifontsel_draw_preview_text(fs);
3230 static gint unifontsel_configure_area(GtkWidget *widget,
3231 GdkEventConfigure *event, gpointer data)
3233 #ifndef NO_BACKING_PIXMAPS
3234 unifontsel_internal *fs = (unifontsel_internal *)data;
3235 int ox, oy, nx, ny, x, y;
3238 * Enlarge the pixmap, but never shrink it.
3240 ox = fs->preview_width;
3241 oy = fs->preview_height;
3244 if (x > ox || y > oy) {
3245 if (fs->preview_pixmap)
3246 gdk_pixmap_unref(fs->preview_pixmap);
3248 nx = (x > ox ? x : ox);
3249 ny = (y > oy ? y : oy);
3250 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
3252 fs->preview_width = nx;
3253 fs->preview_height = ny;
3255 unifontsel_draw_preview_text(fs);
3259 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
3264 unifontsel *unifontsel_new(const char *wintitle)
3266 unifontsel_internal *fs = snew(unifontsel_internal);
3267 GtkWidget *table, *label, *w, *ww, *scroll;
3268 GtkListStore *model;
3269 GtkTreeViewColumn *column;
3270 int lists_height, preview_height, font_width, style_width, size_width;
3273 fs->inhibit_response = FALSE;
3274 fs->selected = NULL;
3280 * Invent some magic size constants.
3282 get_label_text_dimensions("Quite Long Font Name (Foundry)",
3285 lists_height = 14 * height;
3286 preview_height = 5 * height;
3288 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
3289 style_width = width;
3291 get_label_text_dimensions("48000", &width, &height);
3296 * Create the dialog box and initialise the user-visible
3297 * fields in the returned structure.
3299 fs->u.user_data = NULL;
3300 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3301 gtk_window_set_title(fs->u.window, wintitle);
3302 fs->u.cancel_button = gtk_dialog_add_button
3303 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3304 fs->u.ok_button = gtk_dialog_add_button
3305 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3306 gtk_widget_grab_default(fs->u.ok_button);
3309 * Now set up the internal fields, including in particular all
3310 * the controls that actually allow the user to select fonts.
3312 #if GTK_CHECK_VERSION(3,0,0)
3313 table = gtk_grid_new();
3314 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3316 table = gtk_table_new(8, 3, FALSE);
3317 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3319 gtk_widget_show(table);
3321 #if GTK_CHECK_VERSION(3,0,0)
3322 /* GtkAlignment has become deprecated and we use the "margin"
3325 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3326 #elif GTK_CHECK_VERSION(2,4,0)
3327 /* GtkAlignment seems to be the simplest way to put padding round things */
3328 w = gtk_alignment_new(0, 0, 1, 1);
3329 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3330 gtk_container_add(GTK_CONTAINER(w), table);
3333 /* In GTK < 2.4, even that isn't available */
3337 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3338 (GTK_DIALOG(fs->u.window))),
3341 label = gtk_label_new_with_mnemonic("_Font:");
3342 gtk_widget_show(label);
3343 align_label_left(GTK_LABEL(label));
3344 #if GTK_CHECK_VERSION(3,0,0)
3345 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3346 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3348 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3352 * The Font list box displays only a string, but additionally
3353 * stores two integers which give the limits within the
3354 * tree234 of the font entries covered by this list entry.
3356 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3357 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3358 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3359 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3361 column = gtk_tree_view_column_new_with_attributes
3362 ("Font", gtk_cell_renderer_text_new(),
3363 "text", 0, (char *)NULL);
3364 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3365 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3366 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3367 "changed", G_CALLBACK(family_changed), fs);
3368 g_signal_connect(G_OBJECT(w), "row-activated",
3369 G_CALLBACK(alias_resolve), fs);
3371 scroll = gtk_scrolled_window_new(NULL, NULL);
3372 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3374 gtk_container_add(GTK_CONTAINER(scroll), w);
3375 gtk_widget_show(scroll);
3376 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3377 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3378 gtk_widget_set_size_request(scroll, font_width, lists_height);
3379 #if GTK_CHECK_VERSION(3,0,0)
3380 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3381 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3383 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3384 GTK_EXPAND | GTK_FILL, 0, 0);
3386 fs->family_model = model;
3387 fs->family_list = w;
3389 label = gtk_label_new_with_mnemonic("_Style:");
3390 gtk_widget_show(label);
3391 align_label_left(GTK_LABEL(label));
3392 #if GTK_CHECK_VERSION(3,0,0)
3393 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3394 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3396 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3400 * The Style list box can contain insensitive elements (character
3401 * set headings for server-side fonts), so we add an extra column
3402 * to the list store to hold that information. Also, since GTK3 at
3403 * least doesn't seem to display insensitive elements differently
3404 * by default, we add a further column to change their style.
3406 model = gtk_list_store_new(5, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3407 G_TYPE_BOOLEAN, G_TYPE_INT);
3408 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3409 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3410 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3412 column = gtk_tree_view_column_new_with_attributes
3413 ("Style", gtk_cell_renderer_text_new(),
3414 "text", 0, "sensitive", 3, "weight", 4, (char *)NULL);
3415 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3416 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3417 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3418 "changed", G_CALLBACK(style_changed), fs);
3420 scroll = gtk_scrolled_window_new(NULL, NULL);
3421 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3423 gtk_container_add(GTK_CONTAINER(scroll), w);
3424 gtk_widget_show(scroll);
3425 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3426 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3427 gtk_widget_set_size_request(scroll, style_width, lists_height);
3428 #if GTK_CHECK_VERSION(3,0,0)
3429 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3430 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3432 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3433 GTK_EXPAND | GTK_FILL, 0, 0);
3435 fs->style_model = model;
3438 label = gtk_label_new_with_mnemonic("Si_ze:");
3439 gtk_widget_show(label);
3440 align_label_left(GTK_LABEL(label));
3441 #if GTK_CHECK_VERSION(3,0,0)
3442 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3443 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3445 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3449 * The Size label attaches primarily to a text input box so
3450 * that the user can select a size of their choice. The list
3451 * of available sizes is secondary.
3453 fs->size_entry = w = gtk_entry_new();
3454 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3455 gtk_widget_set_size_request(w, size_width, -1);
3457 #if GTK_CHECK_VERSION(3,0,0)
3458 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3459 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3461 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3463 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3466 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3467 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3468 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3470 column = gtk_tree_view_column_new_with_attributes
3471 ("Size", gtk_cell_renderer_text_new(),
3472 "text", 0, (char *)NULL);
3473 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3474 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3475 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3476 "changed", G_CALLBACK(size_changed), fs);
3478 scroll = gtk_scrolled_window_new(NULL, NULL);
3479 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3481 gtk_container_add(GTK_CONTAINER(scroll), w);
3482 gtk_widget_show(scroll);
3483 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3484 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3485 #if GTK_CHECK_VERSION(3,0,0)
3486 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3487 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3489 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3490 GTK_EXPAND | GTK_FILL, 0, 0);
3492 fs->size_model = model;
3498 fs->preview_area = gtk_drawing_area_new();
3499 #ifndef NO_BACKING_PIXMAPS
3500 fs->preview_pixmap = NULL;
3502 fs->preview_width = 0;
3503 fs->preview_height = 0;
3504 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3505 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3506 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3507 #if !GTK_CHECK_VERSION(3,0,0)
3508 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3510 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3513 #if GTK_CHECK_VERSION(3,0,0)
3514 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3515 G_CALLBACK(unifontsel_draw_area), fs);
3517 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3518 G_CALLBACK(unifontsel_expose_area), fs);
3520 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3521 G_CALLBACK(unifontsel_configure_area), fs);
3522 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3523 gtk_widget_show(fs->preview_area);
3524 ww = fs->preview_area;
3525 w = gtk_frame_new(NULL);
3526 gtk_container_add(GTK_CONTAINER(w), ww);
3529 #if GTK_CHECK_VERSION(3,0,0)
3530 /* GtkAlignment has become deprecated and we use the "margin"
3532 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3533 #elif GTK_CHECK_VERSION(2,4,0)
3535 /* GtkAlignment seems to be the simplest way to put padding round things */
3536 w = gtk_alignment_new(0, 0, 1, 1);
3537 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3538 gtk_container_add(GTK_CONTAINER(w), ww);
3543 w = gtk_frame_new("Preview of font");
3544 gtk_container_add(GTK_CONTAINER(w), ww);
3546 #if GTK_CHECK_VERSION(3,0,0)
3547 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3548 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3550 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3551 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3555 * We only provide the checkboxes for client- and server-side
3556 * fonts if we have the X11 back end available, because that's the
3557 * only situation in which more than one class of font is
3560 fs->n_filter_buttons = 0;
3561 #ifndef NOT_X_WINDOWS
3562 w = gtk_check_button_new_with_label("Show client-side fonts");
3563 g_object_set_data(G_OBJECT(w), "user-data",
3564 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3565 g_signal_connect(G_OBJECT(w), "toggled",
3566 G_CALLBACK(unifontsel_button_toggled), fs);
3568 fs->filter_buttons[fs->n_filter_buttons++] = w;
3569 #if GTK_CHECK_VERSION(3,0,0)
3570 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3571 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3573 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3575 w = gtk_check_button_new_with_label("Show server-side fonts");
3576 g_object_set_data(G_OBJECT(w), "user-data",
3577 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3578 g_signal_connect(G_OBJECT(w), "toggled",
3579 G_CALLBACK(unifontsel_button_toggled), fs);
3581 fs->filter_buttons[fs->n_filter_buttons++] = w;
3582 #if GTK_CHECK_VERSION(3,0,0)
3583 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3584 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3586 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3588 w = gtk_check_button_new_with_label("Show server-side font aliases");
3589 g_object_set_data(G_OBJECT(w), "user-data",
3590 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3591 g_signal_connect(G_OBJECT(w), "toggled",
3592 G_CALLBACK(unifontsel_button_toggled), fs);
3594 fs->filter_buttons[fs->n_filter_buttons++] = w;
3595 #if GTK_CHECK_VERSION(3,0,0)
3596 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3597 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3599 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3601 #endif /* NOT_X_WINDOWS */
3602 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3603 g_object_set_data(G_OBJECT(w), "user-data",
3604 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3605 g_signal_connect(G_OBJECT(w), "toggled",
3606 G_CALLBACK(unifontsel_button_toggled), fs);
3608 fs->filter_buttons[fs->n_filter_buttons++] = w;
3609 #if GTK_CHECK_VERSION(3,0,0)
3610 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3611 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3613 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3616 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3617 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3618 FONTFLAG_SERVERALIAS;
3619 unifontsel_set_filter_buttons(fs);
3622 * Go and find all the font names, and set up our master font
3625 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3626 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3627 for (i = 0; i < lenof(unifont_types); i++)
3628 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3629 unifontsel_add_entry, fs);
3632 * And set up the initial font names list.
3634 unifontsel_setup_familylist(fs);
3636 fs->selsize = fs->intendedsize = 13; /* random default */
3637 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3639 return (unifontsel *)fs;
3642 void unifontsel_destroy(unifontsel *fontsel)
3644 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3647 #ifndef NO_BACKING_PIXMAPS
3648 if (fs->preview_pixmap)
3649 gdk_pixmap_unref(fs->preview_pixmap);
3652 freetree234(fs->fonts_by_selorder);
3653 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3655 freetree234(fs->fonts_by_realname);
3657 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3661 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3663 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3664 int i, start, end, size, flags;
3665 const char *fontname2 = NULL;
3669 * Provide a default if given an empty or null font name.
3671 if (!fontname || !*fontname)
3672 fontname = DEFAULT_GTK_FONT;
3675 * Call the canonify_fontname function.
3677 fontname = unifont_do_prefix(fontname, &start, &end);
3678 for (i = start; i < end; i++) {
3679 fontname2 = unifont_types[i]->canonify_fontname
3680 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3685 return; /* font name not recognised */
3688 * Now look up the canonified font name in our index.
3691 struct fontinfo_realname_find f;
3692 f.realname = fontname2;
3694 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3698 * If we've found the font, and its size field is either
3699 * correct or zero (the latter indicating a scalable font),
3700 * then we're done. Otherwise, try looking up the original
3701 * font name instead.
3703 if (!info || (info->size != size && info->size != 0)) {
3704 struct fontinfo_realname_find f;
3705 f.realname = fontname;
3708 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3709 if (!info || info->size != size)
3710 return; /* font name not in our index */
3714 * Now we've got a fontinfo structure and a font size, so we
3715 * know everything we need to fill in all the fields in the
3718 unifontsel_select_font(fs, info, size, 0, TRUE);
3721 char *unifontsel_get_name(unifontsel *fontsel)
3723 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3729 if (fs->selected->size == 0) {
3730 name = fs->selected->fontclass->scale_fontname
3731 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3733 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3740 return dupcat(fs->selected->fontclass->prefix, ":",
3741 fs->selected->realname, NULL);
3744 #endif /* GTK_CHECK_VERSION(2,0,0) */