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"
31 #include <X11/Xutil.h>
32 #include <X11/Xatom.h>
38 * - it would be nice to have a display of the current font name,
39 * and in particular whether it's client- or server-side,
40 * during the progress of the font selector.
43 #if !GLIB_CHECK_VERSION(1,3,7)
44 #define g_ascii_strcasecmp g_strcasecmp
45 #define g_ascii_strncasecmp g_strncasecmp
49 * Ad-hoc vtable mechanism to allow font structures to be
52 * Any instance of `unifont' used in the vtable functions will
53 * actually be the first element of a larger structure containing
54 * data specific to the subtype. This is permitted by the ISO C
55 * provision that one may safely cast between a pointer to a
56 * structure and a pointer to its first element.
59 #define FONTFLAG_CLIENTSIDE 0x0001
60 #define FONTFLAG_SERVERSIDE 0x0002
61 #define FONTFLAG_SERVERALIAS 0x0004
62 #define FONTFLAG_NONMONOSPACED 0x0008
64 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
66 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
67 const char *family, const char *charset,
68 const char *style, const char *stylekey,
70 const struct unifont_vtable *fontclass);
72 struct unifont_vtable {
74 * `Methods' of the `class'.
76 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
77 int shadowoffset, int shadowalways);
78 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
79 int bold, int shadowoffset, int shadowalways);
80 void (*destroy)(unifont *font);
81 int (*has_glyph)(unifont *font, wchar_t glyph);
82 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
83 int x, int y, const wchar_t *string, int len,
84 int wide, int bold, int cellwidth);
85 void (*enum_fonts)(GtkWidget *widget,
86 fontsel_add_entry callback, void *callback_ctx);
87 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
88 int *flags, int resolve_aliases);
89 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
92 * `Static data members' of the `class'.
99 /* ----------------------------------------------------------------------
100 * X11 font implementation, directly using Xlib calls. Conditioned out
101 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
102 * back end other than X).
105 static int x11font_has_glyph(unifont *font, wchar_t glyph);
106 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
107 int x, int y, const wchar_t *string, int len,
108 int wide, int bold, int cellwidth);
109 static unifont *x11font_create(GtkWidget *widget, const char *name,
111 int shadowoffset, int shadowalways);
112 static void x11font_destroy(unifont *font);
113 static void x11font_enum_fonts(GtkWidget *widget,
114 fontsel_add_entry callback, void *callback_ctx);
115 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
116 int *size, int *flags,
117 int resolve_aliases);
118 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
121 #ifdef DRAW_TEXT_CAIRO
122 struct cairo_cached_glyph {
123 cairo_surface_t *surface;
124 unsigned char *bitmap;
129 * Structure storing a single physical XFontStruct, plus associated
132 typedef struct x11font_individual {
133 /* The XFontStruct itself. */
137 * The `allocated' flag indicates whether we've tried to fetch
138 * this subfont already (thus distinguishing xfs==NULL because we
139 * haven't tried yet from xfs==NULL because we tried and failed,
140 * so that we don't keep trying and failing subsequently).
144 #ifdef DRAW_TEXT_CAIRO
146 * A cache of glyph bitmaps downloaded from the X server when
147 * we're in Cairo rendering mode. If glyphcache itself is
148 * non-NULL, then entries in [0,nglyphs) are expected to be
149 * initialised to either NULL or a bitmap pointer.
151 struct cairo_cached_glyph *glyphcache;
155 * X server paraphernalia for actually downloading the glyphs.
159 int pixwidth, pixheight, pixoriginx, pixoriginy;
162 * Paraphernalia for loading the resulting bitmaps into Cairo.
164 int rowsize, allsize, indexflip;
167 } x11font_individual;
172 * Individual physical X fonts. We store a number of these, for
173 * automatically guessed bold and wide variants.
175 x11font_individual fonts[4];
177 * `sixteen_bit' is true iff the font object is indexed by
178 * values larger than a byte. That is, this flag tells us
179 * whether we use XDrawString or XDrawString16, etc.
183 * `variable' is true iff the font is non-fixed-pitch. This
184 * enables some code which takes greater care over character
185 * positioning during text drawing.
189 * real_charset is the charset used when translating text into the
190 * font's internal encoding inside draw_text(). This need not be
191 * the same as the public_charset provided to the client; for
192 * example, public_charset might be CS_ISO8859_1 while
193 * real_charset is CS_ISO8859_1_X11.
197 * Data passed in to unifont_create().
199 int wide, bold, shadowoffset, shadowalways;
202 static const struct unifont_vtable x11font_vtable = {
204 NULL, /* no fallback fonts in X11 */
209 x11font_canonify_fontname,
210 x11font_scale_fontname,
214 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
216 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
217 Atom fontprop = XInternAtom(disp, "FONT", False);
219 if (XGetFontProperty(xfs, fontprop, &ret)) {
220 char *name = XGetAtomName(disp, (Atom)ret);
221 if (name && name[0] == '-') {
222 const char *strings[13];
223 char *dupname, *extrafree = NULL, *ret;
227 p = q = dupname = dupstr(name); /* skip initial minus */
230 while (*p && nstr < lenof(strings)) {
233 strings[nstr++] = p+1;
238 if (nstr < lenof(strings)) {
240 return NULL; /* XLFD was malformed */
247 /* 4 is `wideness', which obviously may have changed. */
248 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
249 strings[4] = strings[5] = "*";
250 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
253 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
254 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
255 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
256 "-", strings[ 9], "-", strings[10], "-", strings[11],
257 "-", strings[12], NULL);
267 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
273 return XTextWidth16(xfs, &space, 1);
275 return XTextWidth(xfs, "0", 1);
279 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
284 * Not to be confused with x11font_has_glyph, which is a method of
285 * the x11font 'class' and hence takes a unifont as argument. This
286 * is the low-level function which grubs about in an actual
287 * XFontStruct to see if a given glyph exists.
289 * We must do this ourselves rather than letting Xlib's
290 * XTextExtents16 do the job, because XTextExtents will helpfully
291 * substitute the font's default_char for any missing glyph and
292 * not tell us it did so, which precisely won't help us find out
293 * which glyphs _are_ missing.
295 * The man page for XQueryFont is rather confusing about how the
296 * per_char array in the XFontStruct is laid out, because it gives
297 * formulae for determining the two-byte X character code _from_
298 * an index into the per_char array. Going the other way, it's
301 * The valid character codes have byte1 between min_byte1 and
302 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
303 * max_char_or_byte2 inclusive. This gives a rectangle of size
304 * (max_byte2-min_byte1+1) by
305 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
306 * rectangle encoded in the per_char array. Hence, given a
307 * character code which is valid in the sense that it falls
308 * somewhere in that rectangle, its index in per_char is given by
311 * x = byte2 - min_char_or_byte2
312 * y = byte1 - min_byte1
313 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
315 * If min_byte1 and min_byte2 are both zero, that's a special case
316 * which can be treated as if min_byte2 was 1 instead, i.e. the
317 * per_char array just runs from min_char_or_byte2 to
318 * max_char_or_byte2 inclusive, and byte1 should always be zero.
321 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
324 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
325 index = byte2 - xfs->min_char_or_byte2;
327 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
329 index = ((byte2 - xfs->min_char_or_byte2) +
330 ((byte1 - xfs->min_byte1) *
331 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
334 if (!xfs->per_char) /* per_char NULL => everything in range exists */
337 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
338 xfs->per_char[index].width > 0);
341 static unifont *x11font_create(GtkWidget *widget, const char *name,
343 int shadowoffset, int shadowalways)
345 struct x11font *xfont;
347 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
348 Atom charset_registry, charset_encoding, spacing;
349 unsigned long registry_ret, encoding_ret, spacing_ret;
350 int pubcs, realcs, sixteen_bit, variable;
353 xfs = XLoadQueryFont(disp, name);
357 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
358 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
360 pubcs = realcs = CS_NONE;
364 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
365 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
367 reg = XGetAtomName(disp, (Atom)registry_ret);
368 enc = XGetAtomName(disp, (Atom)encoding_ret);
370 char *encoding = dupcat(reg, "-", enc, NULL);
371 pubcs = realcs = charset_from_xenc(encoding);
374 * iso10646-1 is the only wide font encoding we
375 * support. In this case, we expect clients to give us
376 * UTF-8, which this module must internally convert
377 * into 16-bit Unicode.
379 if (!strcasecmp(encoding, "iso10646-1")) {
381 pubcs = realcs = CS_UTF8;
385 * Hack for X line-drawing characters: if the primary font
386 * is encoded as ISO-8859-1, and has valid glyphs in the
387 * low character positions, it is assumed that those
388 * glyphs are the VT100 line-drawing character set.
390 if (pubcs == CS_ISO8859_1) {
392 for (ch = 1; ch < 32; ch++)
393 if (!x11_font_has_glyph(xfs, 0, ch))
396 realcs = CS_ISO8859_1_X11;
403 spacing = XInternAtom(disp, "SPACING", False);
404 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
406 spc = XGetAtomName(disp, (Atom)spacing_ret);
408 if (spc && strchr("CcMm", spc[0]))
412 xfont = snew(struct x11font);
413 xfont->u.vt = &x11font_vtable;
414 xfont->u.width = x11_font_width(xfs, sixteen_bit);
415 xfont->u.ascent = xfs->ascent;
416 xfont->u.descent = xfs->descent;
417 xfont->u.height = xfont->u.ascent + xfont->u.descent;
418 xfont->u.public_charset = pubcs;
419 xfont->u.want_fallback = TRUE;
421 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
422 #elif defined DRAW_TEXT_CAIRO
423 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
425 #error No drawtype available at all
427 xfont->real_charset = realcs;
428 xfont->sixteen_bit = sixteen_bit;
429 xfont->variable = variable;
432 xfont->shadowoffset = shadowoffset;
433 xfont->shadowalways = shadowalways;
435 for (i = 0; i < lenof(xfont->fonts); i++) {
436 xfont->fonts[i].xfs = NULL;
437 xfont->fonts[i].allocated = FALSE;
438 #ifdef DRAW_TEXT_CAIRO
439 xfont->fonts[i].glyphcache = NULL;
440 xfont->fonts[i].nglyphs = 0;
441 xfont->fonts[i].pixmap = None;
442 xfont->fonts[i].gc = None;
445 xfont->fonts[0].xfs = xfs;
446 xfont->fonts[0].allocated = TRUE;
448 return (unifont *)xfont;
451 static void x11font_destroy(unifont *font)
453 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
454 struct x11font *xfont = (struct x11font *)font;
457 for (i = 0; i < lenof(xfont->fonts); i++) {
458 if (xfont->fonts[i].xfs)
459 XFreeFont(disp, xfont->fonts[i].xfs);
460 #ifdef DRAW_TEXT_CAIRO
461 if (xfont->fonts[i].gc != None)
462 XFreeGC(disp, xfont->fonts[i].gc);
463 if (xfont->fonts[i].pixmap != None)
464 XFreePixmap(disp, xfont->fonts[i].pixmap);
465 if (xfont->fonts[i].glyphcache) {
467 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
468 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
469 sfree(xfont->fonts[i].glyphcache[j].bitmap);
471 sfree(xfont->fonts[i].glyphcache);
478 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
480 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
481 char *derived_name = x11_guess_derived_font_name
482 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
483 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
484 xfont->fonts[sfid].allocated = TRUE;
486 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
489 static int x11font_has_glyph(unifont *font, wchar_t glyph)
491 struct x11font *xfont = (struct x11font *)font;
493 if (xfont->sixteen_bit) {
495 * This X font has 16-bit character indices, which means
496 * we can directly use our Unicode input value.
498 return x11_font_has_glyph(xfont->fonts[0].xfs,
499 glyph >> 8, glyph & 0xFF);
502 * This X font has 8-bit indices, so we must convert to the
503 * appropriate character set.
506 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
507 sbstring, 2, "", NULL, NULL);
508 if (sblen == 0 || !sbstring[0])
509 return FALSE; /* not even in the charset */
511 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
512 (unsigned char)sbstring[0]);
516 #if !GTK_CHECK_VERSION(2,0,0)
517 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
518 #elif GTK_CHECK_VERSION(3,0,0)
519 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
522 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
523 const void *vstring, int start, int length)
525 const XChar2b *string = (const XChar2b *)vstring;
526 return XTextWidth16(xfi->xfs, string+start, length);
529 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
530 const void *vstring, int start, int length)
532 const char *string = (const char *)vstring;
533 return XTextWidth(xfi->xfs, string+start, length);
537 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
539 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
540 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
543 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
544 x11font_individual *xfi, int x, int y,
545 const void *vstring, int start, int length)
547 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
548 const XChar2b *string = (const XChar2b *)vstring;
549 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
550 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
553 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
554 x11font_individual *xfi, int x, int y,
555 const void *vstring, int start, int length)
557 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
558 const char *string = (const char *)vstring;
559 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
560 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
564 #ifdef DRAW_TEXT_CAIRO
565 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
567 if (xfi->pixmap == None) {
568 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
570 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
571 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
574 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
576 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
577 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
578 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
580 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
582 xfi->allsize = xfi->rowsize * xfi->pixheight;
586 * Test host endianness and use it to set xfi->indexflip,
587 * which is XORed into our left-shift counts in order to
588 * implement the CAIRO_FORMAT_A1 specification, in which
589 * each bitmap byte is oriented LSB-first on little-endian
590 * platforms and MSB-first on big-endian ones.
592 * This is the same technique Cairo itself uses to test
593 * endianness, so hopefully it'll work in any situation
594 * where Cairo is usable at all.
596 static const int endianness_test = 1;
597 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
600 xfi->pixmap = XCreatePixmap
602 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
603 xfi->pixwidth, xfi->pixheight, 1);
604 gcvals.foreground = WhitePixel(disp, widgetscr);
605 gcvals.background = BlackPixel(disp, widgetscr);
606 gcvals.font = xfi->xfs->fid;
607 xfi->gc = XCreateGC(disp, xfi->pixmap,
608 GCForeground | GCBackground | GCFont, &gcvals);
612 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
616 unsigned char *bitmap;
617 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
619 bitmap = snewn(xfi->allsize, unsigned char);
620 memset(bitmap, 0, xfi->allsize);
622 image = XGetImage(disp, xfi->pixmap, 0, 0,
623 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
624 for (y = 0; y < xfi->pixheight; y++) {
625 for (x = 0; x < xfi->pixwidth; x++) {
626 unsigned long pixel = XGetPixel(image, x, y);
628 int byteindex = y * xfi->rowsize + x/8;
629 int bitindex = (x & 7) ^ xfi->indexflip;
630 bitmap[byteindex] |= 1U << bitindex;
634 XDestroyImage(image);
636 if (xfi->nglyphs <= glyphindex) {
637 /* Round up to the next multiple of 256 on the general
638 * principle that Unicode characters come in contiguous blocks
639 * often used together */
640 int old_nglyphs = xfi->nglyphs;
641 xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
642 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
643 struct cairo_cached_glyph);
645 while (old_nglyphs < xfi->nglyphs) {
646 xfi->glyphcache[old_nglyphs].surface = NULL;
647 xfi->glyphcache[old_nglyphs].bitmap = NULL;
651 xfi->glyphcache[glyphindex].bitmap = bitmap;
652 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
653 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
656 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
657 x11font_individual *xfi, int x, int y,
660 if (xfi->glyphcache[glyphindex].surface) {
661 cairo_mask_surface(ctx->u.cairo.cr,
662 xfi->glyphcache[glyphindex].surface,
663 x - xfi->pixoriginx, y - xfi->pixoriginy);
667 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
668 x11font_individual *xfi, int x, int y,
669 const void *vstring, int start, int length)
671 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
672 const XChar2b *string = (const XChar2b *)vstring + start;
674 for (i = 0; i < length; i++) {
675 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
676 int glyphindex = (256 * (unsigned char)string[i].byte1 +
677 (unsigned char)string[i].byte2);
678 if (glyphindex >= xfi->nglyphs ||
679 !xfi->glyphcache[glyphindex].surface) {
680 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
681 xfi->pixoriginx, xfi->pixoriginy,
683 x11font_cairo_cache_glyph(xfi, glyphindex);
685 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
686 x += XTextWidth16(xfi->xfs, string+i, 1);
691 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
692 x11font_individual *xfi, int x, int y,
693 const void *vstring, int start, int length)
695 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
696 const char *string = (const char *)vstring + start;
698 for (i = 0; i < length; i++) {
699 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
700 int glyphindex = (unsigned char)string[i];
701 if (glyphindex >= xfi->nglyphs ||
702 !xfi->glyphcache[glyphindex].surface) {
703 XDrawImageString(disp, xfi->pixmap, xfi->gc,
704 xfi->pixoriginx, xfi->pixoriginy,
706 x11font_cairo_cache_glyph(xfi, glyphindex);
708 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
709 x += XTextWidth(xfi->xfs, string+i, 1);
713 #endif /* DRAW_TEXT_CAIRO */
715 struct x11font_drawfuncs {
716 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
717 const void *vstring, int start, int length);
718 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
719 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
720 const void *vstring, int start, int length);
724 * This array has two entries per compiled-in drawtype; of each pair,
725 * the first is for an 8-bit font and the second for 16-bit.
727 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
742 #ifdef DRAW_TEXT_CAIRO
747 x11font_cairo_draw_8,
749 /* [3] cairo, 16-bit */
753 x11font_cairo_draw_16,
758 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
759 unifont_drawctx *ctx,
760 x11font_individual *xfi, int x, int y,
761 const void *string, int nchars,
763 int fontvariable, int cellwidth)
765 int start = 0, step, nsteps, centre;
769 * In a variable-pitch font, we draw one character at a
770 * time, and centre it in the character cell.
777 * In a fixed-pitch font, we can draw the whole lot in one go.
784 dfns->setup(ctx, xfi);
786 while (nsteps-- > 0) {
789 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
791 dfns->draw(ctx, xfi, X, y, string, start, step);
793 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
800 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
801 int x, int y, const wchar_t *string, int len,
802 int wide, int bold, int cellwidth)
804 struct x11font *xfont = (struct x11font *)font;
806 int shadowoffset = 0;
807 int mult = (wide ? 2 : 1);
808 int index = 2 * (int)ctx->type;
814 * Decide which subfont we're using, and whether we have to
817 if (xfont->shadowalways && bold) {
818 shadowoffset = xfont->shadowoffset;
821 sfid = 2 * wide + bold;
822 if (!xfont->fonts[sfid].allocated)
823 x11_alloc_subfont(xfont, sfid);
824 if (bold && !xfont->fonts[sfid].xfs) {
826 shadowoffset = xfont->shadowoffset;
827 sfid = 2 * wide + bold;
828 if (!xfont->fonts[sfid].allocated)
829 x11_alloc_subfont(xfont, sfid);
832 if (!xfont->fonts[sfid].xfs)
833 return; /* we've tried our best, but no luck */
835 if (xfont->sixteen_bit) {
837 * This X font has 16-bit character indices, which means
838 * we can directly use our Unicode input string.
843 xcs = snewn(len, XChar2b);
844 for (i = 0; i < len; i++) {
845 xcs[i].byte1 = string[i] >> 8;
846 xcs[i].byte2 = string[i];
849 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
850 &xfont->fonts[sfid], x, y,
851 xcs, len, shadowoffset,
852 xfont->variable, cellwidth * mult);
856 * This X font has 8-bit indices, so we must convert to the
857 * appropriate character set.
859 char *sbstring = snewn(len+1, char);
860 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
861 sbstring, len+1, ".", NULL, NULL);
862 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
863 &xfont->fonts[sfid], x, y,
864 sbstring, sblen, shadowoffset,
865 xfont->variable, cellwidth * mult);
870 static void x11font_enum_fonts(GtkWidget *widget,
871 fontsel_add_entry callback, void *callback_ctx)
873 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
876 int nnames, i, max, tmpsize;
880 fontnames = XListFonts(disp, "*", max, &nnames);
882 XFreeFontNames(fontnames);
890 for (i = 0; i < nnames; i++) {
891 if (fontnames[i][0] == '-') {
893 * Dismember an XLFD and convert it into the format
894 * we'll be using in the font selector.
896 char *components[14];
897 char *p, *font, *style, *stylekey, *charset;
898 int j, weightkey, slantkey, setwidthkey;
899 int thistmpsize, fontsize, flags;
901 thistmpsize = 4 * strlen(fontnames[i]) + 256;
902 if (tmpsize < thistmpsize) {
903 tmpsize = thistmpsize;
904 tmp = sresize(tmp, tmpsize, char);
906 strcpy(tmp, fontnames[i]);
909 for (j = 0; j < 14; j++) {
913 while (*p && *p != '-')
919 * Font name is made up of fields 0 and 1, in reverse
920 * order with parentheses. (This is what the GTK 1.2 X
921 * font selector does, and it seems to come out
922 * looking reasonably sensible.)
925 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
928 * Charset is made up of fields 12 and 13.
931 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
934 * Style is a mixture of quite a lot of the fields,
935 * with some strange formatting.
938 p += sprintf(p, "%s", components[2][0] ? components[2] :
940 if (!g_ascii_strcasecmp(components[3], "i"))
941 p += sprintf(p, " italic");
942 else if (!g_ascii_strcasecmp(components[3], "o"))
943 p += sprintf(p, " oblique");
944 else if (!g_ascii_strcasecmp(components[3], "ri"))
945 p += sprintf(p, " reverse italic");
946 else if (!g_ascii_strcasecmp(components[3], "ro"))
947 p += sprintf(p, " reverse oblique");
948 else if (!g_ascii_strcasecmp(components[3], "ot"))
949 p += sprintf(p, " other-slant");
950 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
951 p += sprintf(p, " %s", components[4]);
952 if (!g_ascii_strcasecmp(components[10], "m"))
953 p += sprintf(p, " [M]");
954 if (!g_ascii_strcasecmp(components[10], "c"))
955 p += sprintf(p, " [C]");
956 if (components[5][0])
957 p += sprintf(p, " %s", components[5]);
960 * Style key is the same stuff as above, but with a
961 * couple of transformations done on it to make it
962 * sort more sensibly.
966 if (!g_ascii_strcasecmp(components[2], "medium") ||
967 !g_ascii_strcasecmp(components[2], "regular") ||
968 !g_ascii_strcasecmp(components[2], "normal") ||
969 !g_ascii_strcasecmp(components[2], "book"))
971 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
972 !g_ascii_strncasecmp(components[2], "semi", 4))
976 if (!g_ascii_strcasecmp(components[3], "r"))
978 else if (!g_ascii_strncasecmp(components[3], "r", 1))
982 if (!g_ascii_strcasecmp(components[4], "normal"))
987 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
989 (int)strlen(components[2]), components[2],
991 (int)strlen(components[3]), components[3],
993 (int)strlen(components[4]), components[4],
994 (int)strlen(components[10]), components[10],
995 (int)strlen(components[5]), components[5]);
997 assert(p - tmp < thistmpsize);
1000 * Size is in pixels, for our application, so we
1001 * derive it directly from the pixel size field,
1004 fontsize = atoi(components[6]);
1007 * Flags: we need to know whether this is a monospaced
1008 * font, which we do by examining the spacing field
1011 flags = FONTFLAG_SERVERSIDE;
1012 if (!strchr("CcMm", components[10][0]))
1013 flags |= FONTFLAG_NONMONOSPACED;
1016 * Not sure why, but sometimes the X server will
1017 * deliver dummy font types in which fontsize comes
1018 * out as zero. Filter those out.
1021 callback(callback_ctx, fontnames[i], font, charset,
1022 style, stylekey, fontsize, flags, &x11font_vtable);
1025 * This isn't an XLFD, so it must be an alias.
1026 * Transmit it with mostly null data.
1028 * It would be nice to work out if it's monospaced
1029 * here, but at the moment I can't see that being
1030 * anything but computationally hideous. Ah well.
1032 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1033 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1036 XFreeFontNames(fontnames);
1039 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1040 int *size, int *flags,
1041 int resolve_aliases)
1044 * When given an X11 font name to try to make sense of for a
1045 * font selector, we must attempt to load it (to see if it
1046 * exists), and then canonify it by extracting its FONT
1047 * property, which should give its full XLFD even if what we
1048 * originally had was a wildcard.
1050 * However, we must carefully avoid canonifying font
1051 * _aliases_, unless specifically asked to, because the font
1052 * selector treats them as worthwhile in their own right.
1055 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1056 Atom fontprop, fontprop2;
1059 xfs = XLoadQueryFont(disp, name);
1062 return NULL; /* didn't make sense to us, sorry */
1064 fontprop = XInternAtom(disp, "FONT", False);
1066 if (XGetFontProperty(xfs, fontprop, &ret)) {
1067 char *newname = XGetAtomName(disp, (Atom)ret);
1069 unsigned long fsize = 12;
1071 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1072 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1074 XFreeFont(disp, xfs);
1076 if (name[0] == '-' || resolve_aliases)
1077 *flags = FONTFLAG_SERVERSIDE;
1079 *flags = FONTFLAG_SERVERALIAS;
1081 return dupstr(name[0] == '-' || resolve_aliases ?
1087 XFreeFont(disp, xfs);
1089 return NULL; /* something went wrong */
1092 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1095 return NULL; /* shan't */
1098 #endif /* NOT_X_WINDOWS */
1100 #if GTK_CHECK_VERSION(2,0,0)
1102 /* ----------------------------------------------------------------------
1103 * Pango font implementation (for GTK 2 only).
1106 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1107 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1110 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1111 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1112 int x, int y, const wchar_t *string, int len,
1113 int wide, int bold, int cellwidth);
1114 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1116 int shadowoffset, int shadowalways);
1117 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1119 int shadowoffset, int shadowalways);
1120 static void pangofont_destroy(unifont *font);
1121 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1122 void *callback_ctx);
1123 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1124 int *size, int *flags,
1125 int resolve_aliases);
1126 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1134 PangoFontDescription *desc;
1137 * The containing widget.
1141 * Data passed in to unifont_create().
1143 int bold, shadowoffset, shadowalways;
1145 * Cache of character widths, indexed by Unicode code point. In
1146 * pixels; -1 means we haven't asked Pango about this character
1150 unsigned nwidthcache;
1153 static const struct unifont_vtable pangofont_vtable = {
1155 pangofont_create_fallback,
1157 pangofont_has_glyph,
1158 pangofont_draw_text,
1159 pangofont_enum_fonts,
1160 pangofont_canonify_fontname,
1161 pangofont_scale_fontname,
1166 * This function is used to rigorously validate a
1167 * PangoFontDescription. Later versions of Pango have a nasty
1168 * habit of accepting _any_ old string as input to
1169 * pango_font_description_from_string and returning a font
1170 * description which can actually be used to display text, even if
1171 * they have to do it by falling back to their most default font.
1172 * This is doubtless helpful in some situations, but not here,
1173 * because we need to know if a Pango font string actually _makes
1174 * sense_ in order to fall back to treating it as an X font name
1175 * if it doesn't. So we check that the font family is actually one
1176 * supported by Pango.
1178 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1179 PangoFontDescription *desc)
1181 #ifndef PANGO_PRE_1POINT6
1184 PangoFontFamily **families;
1185 int i, nfamilies, matched;
1188 * Ask Pango for a list of font families, and iterate through
1189 * them to see if one of them matches the family in the
1190 * PangoFontDescription.
1192 #ifndef PANGO_PRE_1POINT6
1193 map = pango_context_get_font_map(ctx);
1196 pango_font_map_list_families(map, &families, &nfamilies);
1198 pango_context_list_families(ctx, &families, &nfamilies);
1202 for (i = 0; i < nfamilies; i++) {
1203 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1204 pango_font_description_get_family(desc))) {
1214 static unifont *pangofont_create_internal(GtkWidget *widget,
1216 PangoFontDescription *desc,
1218 int shadowoffset, int shadowalways)
1220 struct pangofont *pfont;
1221 #ifndef PANGO_PRE_1POINT6
1225 PangoFontMetrics *metrics;
1227 #ifndef PANGO_PRE_1POINT6
1228 map = pango_context_get_font_map(ctx);
1230 pango_font_description_free(desc);
1233 fset = pango_font_map_load_fontset(map, ctx, desc,
1234 pango_context_get_language(ctx));
1236 fset = pango_context_load_fontset(ctx, desc,
1237 pango_context_get_language(ctx));
1240 pango_font_description_free(desc);
1243 metrics = pango_fontset_get_metrics(fset);
1245 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1246 pango_font_description_free(desc);
1247 g_object_unref(fset);
1251 pfont = snew(struct pangofont);
1252 pfont->u.vt = &pangofont_vtable;
1254 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1255 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1256 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1257 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1258 pfont->u.want_fallback = FALSE;
1259 #ifdef DRAW_TEXT_CAIRO
1260 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1261 #elif defined DRAW_TEXT_GDK
1262 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1264 #error No drawtype available at all
1266 /* The Pango API is hardwired to UTF-8 */
1267 pfont->u.public_charset = CS_UTF8;
1270 pfont->widget = widget;
1272 pfont->shadowoffset = shadowoffset;
1273 pfont->shadowalways = shadowalways;
1274 pfont->widthcache = NULL;
1275 pfont->nwidthcache = 0;
1277 pango_font_metrics_unref(metrics);
1279 return (unifont *)pfont;
1282 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1284 int shadowoffset, int shadowalways)
1287 PangoFontDescription *desc;
1289 desc = pango_font_description_from_string(name);
1292 ctx = gtk_widget_get_pango_context(widget);
1294 pango_font_description_free(desc);
1297 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1298 pango_font_description_free(desc);
1301 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1302 shadowoffset, shadowalways);
1305 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1307 int shadowoffset, int shadowalways)
1310 PangoFontDescription *desc;
1312 desc = pango_font_description_from_string("Monospace");
1315 ctx = gtk_widget_get_pango_context(widget);
1317 pango_font_description_free(desc);
1320 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1321 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1322 shadowoffset, shadowalways);
1325 static void pangofont_destroy(unifont *font)
1327 struct pangofont *pfont = (struct pangofont *)font;
1328 pango_font_description_free(pfont->desc);
1329 sfree(pfont->widthcache);
1330 g_object_unref(pfont->fset);
1334 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1335 wchar_t uchr, const char *utfchr, int utflen)
1338 * Here we check whether a character has the same width as the
1339 * character cell it'll be drawn in. Because profiling showed that
1340 * pango_layout_get_pixel_extents() was a huge bottleneck when we
1341 * were calling it every time we needed to know this, we instead
1342 * call it only on characters we don't already know about, and
1343 * cache the results.
1346 if ((unsigned)uchr >= pfont->nwidthcache) {
1347 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1348 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1349 while (pfont->nwidthcache < newsize)
1350 pfont->widthcache[pfont->nwidthcache++] = -1;
1353 if (pfont->widthcache[uchr] < 0) {
1354 PangoRectangle rect;
1355 pango_layout_set_text(layout, utfchr, utflen);
1356 pango_layout_get_pixel_extents(layout, NULL, &rect);
1357 pfont->widthcache[uchr] = rect.width;
1360 return pfont->widthcache[uchr];
1363 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1365 /* Pango implements font fallback, so assume it has everything */
1369 #ifdef DRAW_TEXT_GDK
1370 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1371 gint x, gint y, PangoLayout *layout)
1373 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1377 #ifdef DRAW_TEXT_CAIRO
1378 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1379 gint x, gint y, PangoLayout *layout)
1381 cairo_move_to(ctx->u.cairo.cr, x, y);
1382 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1386 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1387 int x, int y, const wchar_t *string, int len,
1388 int wide, int bold, int cellwidth)
1390 struct pangofont *pfont = (struct pangofont *)font;
1391 PangoLayout *layout;
1392 PangoRectangle rect;
1393 char *utfstring, *utfptr;
1395 int shadowbold = FALSE;
1396 void (*draw_layout)(unifont_drawctx *ctx,
1397 gint x, gint y, PangoLayout *layout) = NULL;
1399 #ifdef DRAW_TEXT_GDK
1400 if (ctx->type == DRAWTYPE_GDK) {
1401 draw_layout = pango_gdk_draw_layout;
1404 #ifdef DRAW_TEXT_CAIRO
1405 if (ctx->type == DRAWTYPE_CAIRO) {
1406 draw_layout = pango_cairo_draw_layout;
1413 y -= pfont->u.ascent;
1415 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1416 pango_layout_set_font_description(layout, pfont->desc);
1417 if (bold > pfont->bold) {
1418 if (pfont->shadowalways)
1421 PangoFontDescription *desc2 =
1422 pango_font_description_copy_static(pfont->desc);
1423 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1424 pango_layout_set_font_description(layout, desc2);
1429 * Pango always expects UTF-8, so convert the input wide character
1432 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1433 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1434 utfstring, len*6+1, ".", NULL, NULL);
1437 while (utflen > 0) {
1441 * We want to display every character from this string in
1442 * the centre of its own character cell. In the worst case,
1443 * this requires a separate text-drawing call for each
1444 * character; but in the common case where the font is
1445 * properly fixed-width, we can draw many characters in one
1446 * go which is much faster.
1448 * This still isn't really ideal. If you look at what
1449 * happens in the X protocol as a result of all of this, you
1450 * find - naturally enough - that each call to
1451 * gdk_draw_layout() generates a separate set of X RENDER
1452 * operations involving creating a picture, setting a clip
1453 * rectangle, doing some drawing and undoing the whole lot.
1454 * In an ideal world, we should _always_ be able to turn the
1455 * contents of this loop into a single RenderCompositeGlyphs
1456 * operation which internally specifies inter-character
1457 * deltas to get the spacing right, which would give us full
1458 * speed _even_ in the worst case of a non-fixed-width font.
1459 * However, Pango's architecture and documentation are so
1460 * unhelpful that I have no idea how if at all to persuade
1465 * Start by extracting a single UTF-8 character from the
1469 while (clen < utflen &&
1470 (unsigned char)utfptr[clen] >= 0x80 &&
1471 (unsigned char)utfptr[clen] < 0xC0)
1475 if (is_rtl(string[0]) ||
1476 pangofont_char_width(layout, pfont, string[n-1],
1477 utfptr, clen) != cellwidth) {
1479 * If this character is a right-to-left one, or has an
1480 * unusual width, then we must display it on its own.
1484 * Try to amalgamate a contiguous string of characters
1485 * with the expected sensible width, for the common case
1486 * in which we're using a monospaced font and everything
1487 * works as expected.
1489 while (clen < utflen) {
1491 clen++; /* skip UTF-8 introducer byte */
1492 while (clen < utflen &&
1493 (unsigned char)utfptr[clen] >= 0x80 &&
1494 (unsigned char)utfptr[clen] < 0xC0)
1497 if (pangofont_char_width(layout, pfont,
1498 string[n-1], utfptr + oldclen,
1499 clen - oldclen) != cellwidth) {
1507 pango_layout_set_text(layout, utfptr, clen);
1508 pango_layout_get_pixel_extents(layout, NULL, &rect);
1511 x + (n*cellwidth - rect.width)/2,
1512 y + (pfont->u.height - rect.height)/2, layout);
1515 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1516 y + (pfont->u.height - rect.height)/2, layout);
1526 g_object_unref(layout);
1530 * Dummy size value to be used when converting a
1531 * PangoFontDescription of a scalable font to a string for
1534 #define PANGO_DUMMY_SIZE 12
1536 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1540 #ifndef PANGO_PRE_1POINT6
1543 PangoFontFamily **families;
1546 ctx = gtk_widget_get_pango_context(widget);
1551 * Ask Pango for a list of font families, and iterate through
1554 #ifndef PANGO_PRE_1POINT6
1555 map = pango_context_get_font_map(ctx);
1558 pango_font_map_list_families(map, &families, &nfamilies);
1560 pango_context_list_families(ctx, &families, &nfamilies);
1562 for (i = 0; i < nfamilies; i++) {
1563 PangoFontFamily *family = families[i];
1564 const char *familyname;
1566 PangoFontFace **faces;
1570 * Set up our flags for this font family, and get the name
1573 flags = FONTFLAG_CLIENTSIDE;
1574 #ifndef PANGO_PRE_1POINT4
1576 * In very early versions of Pango, we can't tell
1577 * monospaced fonts from non-monospaced.
1579 if (!pango_font_family_is_monospace(family))
1580 flags |= FONTFLAG_NONMONOSPACED;
1582 familyname = pango_font_family_get_name(family);
1585 * Go through the available font faces in this family.
1587 pango_font_family_list_faces(family, &faces, &nfaces);
1588 for (j = 0; j < nfaces; j++) {
1589 PangoFontFace *face = faces[j];
1590 PangoFontDescription *desc;
1591 const char *facename;
1593 int k, nsizes, dummysize;
1596 * Get the face name string.
1598 facename = pango_font_face_get_face_name(face);
1601 * Set up a font description with what we've got so
1602 * far. We'll fill in the size field manually and then
1603 * call pango_font_description_to_string() to give the
1604 * full real name of the specific font.
1606 desc = pango_font_face_describe(face);
1609 * See if this font has a list of specific sizes.
1611 #ifndef PANGO_PRE_1POINT4
1612 pango_font_face_list_sizes(face, &sizes, &nsizes);
1615 * In early versions of Pango, that call wasn't
1616 * supported; we just have to assume everything is
1623 * Write a single entry with a dummy size.
1625 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1631 * If so, go through them one by one.
1633 for (k = 0; k < nsizes; k++) {
1637 pango_font_description_set_size(desc, sizes[k]);
1639 fullname = pango_font_description_to_string(desc);
1642 * Construct the sorting key for font styles.
1648 n = pango_font_description_get_weight(desc);
1649 /* Weight: normal, then lighter, then bolder */
1650 if (n <= PANGO_WEIGHT_NORMAL)
1651 n = PANGO_WEIGHT_NORMAL - n;
1652 p += sprintf(p, "%4d", n);
1654 n = pango_font_description_get_style(desc);
1655 p += sprintf(p, " %2d", n);
1657 n = pango_font_description_get_stretch(desc);
1658 /* Stretch: closer to normal sorts earlier */
1659 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1660 (n < PANGO_STRETCH_NORMAL);
1661 p += sprintf(p, " %2d", n);
1663 n = pango_font_description_get_variant(desc);
1664 p += sprintf(p, " %2d", n);
1669 * Got everything. Hand off to the callback.
1670 * (The charset string is NULL, because only
1671 * server-side X fonts use it.)
1673 callback(callback_ctx, fullname, familyname, NULL, facename,
1675 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1676 flags, &pangofont_vtable);
1680 if (sizes != &dummysize)
1683 pango_font_description_free(desc);
1690 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1691 int *size, int *flags,
1692 int resolve_aliases)
1695 * When given a Pango font name to try to make sense of for a
1696 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1697 * extract its original size (in pixels) into the `size' field.
1700 #ifndef PANGO_PRE_1POINT6
1703 PangoFontDescription *desc;
1705 PangoFontMetrics *metrics;
1706 char *newname, *retname;
1708 desc = pango_font_description_from_string(name);
1711 ctx = gtk_widget_get_pango_context(widget);
1713 pango_font_description_free(desc);
1716 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1717 pango_font_description_free(desc);
1720 #ifndef PANGO_PRE_1POINT6
1721 map = pango_context_get_font_map(ctx);
1723 pango_font_description_free(desc);
1726 fset = pango_font_map_load_fontset(map, ctx, desc,
1727 pango_context_get_language(ctx));
1729 fset = pango_context_load_fontset(ctx, desc,
1730 pango_context_get_language(ctx));
1733 pango_font_description_free(desc);
1736 metrics = pango_fontset_get_metrics(fset);
1738 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1739 pango_font_description_free(desc);
1740 g_object_unref(fset);
1744 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1745 *flags = FONTFLAG_CLIENTSIDE;
1746 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1747 newname = pango_font_description_to_string(desc);
1748 retname = dupstr(newname);
1751 pango_font_metrics_unref(metrics);
1752 pango_font_description_free(desc);
1753 g_object_unref(fset);
1758 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1761 PangoFontDescription *desc;
1762 char *newname, *retname;
1764 desc = pango_font_description_from_string(name);
1767 pango_font_description_set_size(desc, size * PANGO_SCALE);
1768 newname = pango_font_description_to_string(desc);
1769 retname = dupstr(newname);
1771 pango_font_description_free(desc);
1776 #endif /* GTK_CHECK_VERSION(2,0,0) */
1778 /* ----------------------------------------------------------------------
1779 * Outermost functions which do the vtable dispatch.
1783 * Complete list of font-type subclasses. Listed in preference
1784 * order for unifont_create(). (That is, in the extremely unlikely
1785 * event that the same font name is valid as both a Pango and an
1786 * X11 font, it will be interpreted as the former in the absence
1787 * of an explicit type-disambiguating prefix.)
1789 * The 'multifont' subclass is omitted here, as discussed above.
1791 static const struct unifont_vtable *unifont_types[] = {
1792 #if GTK_CHECK_VERSION(2,0,0)
1795 #ifndef NOT_X_WINDOWS
1801 * Function which takes a font name and processes the optional
1802 * scheme prefix. Returns the tail of the font name suitable for
1803 * passing to individual font scheme functions, and also provides
1804 * a subrange of the unifont_types[] array above.
1806 * The return values `start' and `end' denote a half-open interval
1807 * in unifont_types[]; that is, the correct way to iterate over
1810 * for (i = start; i < end; i++) {...}
1812 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1814 int colonpos = strcspn(name, ":");
1817 if (name[colonpos]) {
1819 * There's a colon prefix on the font name. Use it to work
1820 * out which subclass to use.
1822 for (i = 0; i < lenof(unifont_types); i++) {
1823 if (strlen(unifont_types[i]->prefix) == colonpos &&
1824 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1827 return name + colonpos + 1;
1831 * None matched, so return an empty scheme list to prevent
1832 * any scheme from being called at all.
1835 return name + colonpos + 1;
1838 * No colon prefix, so just use all the subclasses.
1841 *end = lenof(unifont_types);
1846 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1847 int bold, int shadowoffset, int shadowalways)
1851 name = unifont_do_prefix(name, &start, &end);
1853 for (i = start; i < end; i++) {
1854 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1855 shadowoffset, shadowalways);
1859 return NULL; /* font not found in any scheme */
1862 void unifont_destroy(unifont *font)
1864 font->vt->destroy(font);
1867 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1868 int x, int y, const wchar_t *string, int len,
1869 int wide, int bold, int cellwidth)
1871 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1874 /* ----------------------------------------------------------------------
1875 * Multiple-font wrapper. This is a type of unifont which encapsulates
1876 * up to two other unifonts, permitting missing glyphs in the main
1877 * font to be filled in by a fallback font.
1879 * This is a type of unifont just like the previous two, but it has a
1880 * separate constructor which is manually called by the client, so it
1881 * doesn't appear in the list of available font types enumerated by
1882 * unifont_create. This means it's not used by unifontsel either, so
1883 * it doesn't need to support any methods except draw_text and
1887 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1888 int x, int y, const wchar_t *string, int len,
1889 int wide, int bold, int cellwidth);
1890 static void multifont_destroy(unifont *font);
1898 static const struct unifont_vtable multifont_vtable = {
1899 NULL, /* creation is done specially */
1903 multifont_draw_text,
1910 unifont *multifont_create(GtkWidget *widget, const char *name,
1912 int shadowoffset, int shadowalways)
1915 unifont *font, *fallback;
1916 struct multifont *mfont;
1918 font = unifont_create(widget, name, wide, bold,
1919 shadowoffset, shadowalways);
1924 if (font->want_fallback) {
1925 for (i = 0; i < lenof(unifont_types); i++) {
1926 if (unifont_types[i]->create_fallback) {
1927 fallback = unifont_types[i]->create_fallback
1928 (widget, font->height, wide, bold,
1929 shadowoffset, shadowalways);
1937 * Construct our multifont. Public members are all copied from the
1938 * primary font we're wrapping.
1940 mfont = snew(struct multifont);
1941 mfont->u.vt = &multifont_vtable;
1942 mfont->u.width = font->width;
1943 mfont->u.ascent = font->ascent;
1944 mfont->u.descent = font->descent;
1945 mfont->u.height = font->height;
1946 mfont->u.public_charset = font->public_charset;
1947 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1948 mfont->u.preferred_drawtype = font->preferred_drawtype;
1950 mfont->fallback = fallback;
1952 return (unifont *)mfont;
1955 static void multifont_destroy(unifont *font)
1957 struct multifont *mfont = (struct multifont *)font;
1958 unifont_destroy(mfont->main);
1959 if (mfont->fallback)
1960 unifont_destroy(mfont->fallback);
1964 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1965 int y, const wchar_t *string, int len,
1966 int wide, int bold, int cellwidth)
1968 struct multifont *mfont = (struct multifont *)font;
1974 * Find a maximal sequence of characters which are, or are
1975 * not, supported by our main font.
1977 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1980 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1986 f = ok ? mfont->main : mfont->fallback;
1988 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1995 /* ----------------------------------------------------------------------
1996 * Utility routine used by the code below, and also gtkdlg.c.
1999 void get_label_text_dimensions(const char *text, int *width, int *height)
2002 * Determine the dimensions of a piece of text in the standard
2003 * font used in GTK interface elements like labels. We do this by
2004 * instantiating an actual GtkLabel, and then querying its size.
2006 * But GTK2 and GTK3 require us to query the size completely
2007 * differently. I'm sure there ought to be an easier approach than
2008 * the way I'm doing this in GTK3, too!
2010 GtkWidget *label = gtk_label_new(text);
2012 #if GTK_CHECK_VERSION(3,0,0)
2013 PangoLayout *layout = gtk_label_get_layout(GTK_LABEL(label));
2014 PangoRectangle logrect;
2015 pango_layout_get_extents(layout, NULL, &logrect);
2017 *width = logrect.width / PANGO_SCALE;
2019 *height = logrect.height / PANGO_SCALE;
2022 gtk_widget_size_request(label, &req);
2026 *height = req.height;
2029 g_object_ref_sink(G_OBJECT(label));
2030 #if GTK_CHECK_VERSION(2,10,0)
2031 g_object_unref(label);
2035 #if GTK_CHECK_VERSION(2,0,0)
2037 /* ----------------------------------------------------------------------
2038 * Implementation of a unified font selector. Used on GTK 2 only;
2039 * for GTK 1 we still use the standard font selector.
2042 typedef struct fontinfo fontinfo;
2044 typedef struct unifontsel_internal {
2045 /* This must be the structure's first element, for cross-casting */
2047 GtkListStore *family_model, *style_model, *size_model;
2048 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2049 GtkWidget *filter_buttons[4];
2050 int n_filter_buttons;
2051 GtkWidget *preview_area;
2052 #ifndef NO_BACKING_PIXMAPS
2053 GdkPixmap *preview_pixmap;
2055 int preview_width, preview_height;
2056 GdkColor preview_fg, preview_bg;
2058 tree234 *fonts_by_realname, *fonts_by_selorder;
2060 int selsize, intendedsize;
2061 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2062 } unifontsel_internal;
2065 * The structure held in the tree234s. All the string members are
2066 * part of the same allocated area, so don't need freeing
2071 char *family, *charset, *style, *stylekey;
2074 * Fallback sorting key, to permit multiple identical entries
2075 * to exist in the selorder tree.
2079 * Indices mapping fontinfo structures to indices in the list
2080 * boxes. sizeindex is irrelevant if the font is scalable
2083 int familyindex, styleindex, sizeindex;
2085 * The class of font.
2087 const struct unifont_vtable *fontclass;
2090 struct fontinfo_realname_find {
2091 const char *realname;
2095 static int strnullcasecmp(const char *a, const char *b)
2100 * If exactly one of the inputs is NULL, it compares before
2103 if ((i = (!b) - (!a)) != 0)
2107 * NULL compares equal.
2113 * Otherwise, ordinary strcasecmp.
2115 return g_ascii_strcasecmp(a, b);
2118 static int fontinfo_realname_compare(void *av, void *bv)
2120 fontinfo *a = (fontinfo *)av;
2121 fontinfo *b = (fontinfo *)bv;
2124 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2126 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2127 return ((a->flags & FONTFLAG_SORT_MASK) <
2128 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2132 static int fontinfo_realname_find(void *av, void *bv)
2134 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2135 fontinfo *b = (fontinfo *)bv;
2138 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2140 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2141 return ((a->flags & FONTFLAG_SORT_MASK) <
2142 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2146 static int fontinfo_selorder_compare(void *av, void *bv)
2148 fontinfo *a = (fontinfo *)av;
2149 fontinfo *b = (fontinfo *)bv;
2151 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2154 * Font class comes immediately after family, so that fonts
2155 * from different classes with the same family
2157 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2158 return ((a->flags & FONTFLAG_SORT_MASK) <
2159 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2160 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2162 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2164 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2166 if (a->size != b->size)
2167 return (a->size < b->size ? -1 : +1);
2168 if (a->index != b->index)
2169 return (a->index < b->index ? -1 : +1);
2173 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2175 static void unifontsel_deselect(unifontsel_internal *fs)
2177 fs->selected = NULL;
2178 gtk_list_store_clear(fs->style_model);
2179 gtk_list_store_clear(fs->size_model);
2180 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2181 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2182 unifontsel_draw_preview_text(fs);
2185 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2188 int i, listindex, minpos = -1, maxpos = -1;
2189 char *currfamily = NULL;
2193 fs->inhibit_response = TRUE;
2195 gtk_list_store_clear(fs->family_model);
2199 * Search through the font tree for anything matching our
2200 * current filter criteria. When we find one, add its font
2201 * name to the list box.
2203 for (i = 0 ;; i++) {
2204 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2206 * info may be NULL if we've just run off the end of the
2207 * tree. We must still do a processing pass in that
2208 * situation, in case we had an unfinished font record in
2211 if (info && (info->flags &~ fs->filter_flags)) {
2212 info->familyindex = -1;
2213 continue; /* we're filtering out this font */
2215 if (!info || strnullcasecmp(currfamily, info->family) ||
2216 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2218 * We've either finished a family, or started a new
2222 gtk_list_store_append(fs->family_model, &iter);
2223 gtk_list_store_set(fs->family_model, &iter,
2224 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2229 currfamily = info->family;
2230 currflags = info->flags & FONTFLAG_SORT_MASK;
2234 break; /* now we're done */
2235 info->familyindex = listindex;
2240 * If we've just filtered out the previously selected font,
2241 * deselect it thoroughly.
2243 if (fs->selected && fs->selected->familyindex < 0)
2244 unifontsel_deselect(fs);
2246 fs->inhibit_response = FALSE;
2249 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2253 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2254 char *currcs = NULL, *currstyle = NULL;
2257 gtk_list_store_clear(fs->style_model);
2262 * Search through the font tree for anything matching our
2263 * current filter criteria. When we find one, add its charset
2264 * and/or style name to the list box.
2266 for (i = start; i <= end; i++) {
2270 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2272 * info may be NULL if we've just run off the end of the
2273 * relevant data. We must still do a processing pass in
2274 * that situation, in case we had an unfinished font
2275 * record in progress.
2277 if (info && (info->flags &~ fs->filter_flags)) {
2278 info->styleindex = -1;
2279 continue; /* we're filtering out this font */
2281 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2282 strnullcasecmp(currstyle, info->style)) {
2284 * We've either finished a style/charset, or started a
2289 gtk_list_store_append(fs->style_model, &iter);
2290 gtk_list_store_set(fs->style_model, &iter,
2291 0, currstyle, 1, minpos, 2, maxpos+1,
2297 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2298 gtk_list_store_append(fs->style_model, &iter);
2299 gtk_list_store_set(fs->style_model, &iter,
2300 0, info->charset, 1, -1, 2, -1,
2304 currcs = info->charset;
2305 currstyle = info->style;
2309 break; /* now we're done */
2310 info->styleindex = listindex;
2315 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2317 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2325 gtk_list_store_clear(fs->size_model);
2329 * Search through the font tree for anything matching our
2330 * current filter criteria. When we find one, add its font
2331 * name to the list box.
2333 for (i = start; i < end; i++) {
2334 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2335 if (info->flags &~ fs->filter_flags) {
2336 info->sizeindex = -1;
2337 continue; /* we're filtering out this font */
2340 sprintf(sizetext, "%d", info->size);
2341 info->sizeindex = listindex;
2342 gtk_list_store_append(fs->size_model, &iter);
2343 gtk_list_store_set(fs->size_model, &iter,
2344 0, sizetext, 1, i, 2, info->size, -1);
2352 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2353 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2354 gtk_list_store_append(fs->size_model, &iter);
2355 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2356 2, unifontsel_default_sizes[j], -1);
2363 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2367 for (i = 0; i < fs->n_filter_buttons; i++) {
2368 int flagbit = GPOINTER_TO_INT(g_object_get_data
2369 (G_OBJECT(fs->filter_buttons[i]),
2371 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2372 !!(fs->filter_flags & flagbit));
2376 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2377 unifontsel_internal *fs)
2380 char *sizename = NULL;
2381 fontinfo *info = fs->selected;
2384 sizename = info->fontclass->scale_fontname
2385 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2386 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2387 sizename ? sizename : info->realname,
2388 FALSE, FALSE, 0, 0);
2392 #ifdef DRAW_TEXT_GDK
2393 if (dctx->type == DRAWTYPE_GDK) {
2394 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2395 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2396 fs->preview_width, fs->preview_height);
2397 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2400 #ifdef DRAW_TEXT_CAIRO
2401 if (dctx->type == DRAWTYPE_CAIRO) {
2402 cairo_set_source_rgb(dctx->u.cairo.cr,
2403 fs->preview_bg.red / 65535.0,
2404 fs->preview_bg.green / 65535.0,
2405 fs->preview_bg.blue / 65535.0);
2406 cairo_paint(dctx->u.cairo.cr);
2407 cairo_set_source_rgb(dctx->u.cairo.cr,
2408 fs->preview_fg.red / 65535.0,
2409 fs->preview_fg.green / 65535.0,
2410 fs->preview_fg.blue / 65535.0);
2416 * The pangram used here is rather carefully
2417 * constructed: it contains a sequence of very narrow
2418 * letters (`jil') and a pair of adjacent very wide
2421 * If the user selects a proportional font, it will be
2422 * coerced into fixed-width character cells when used
2423 * in the actual terminal window. We therefore display
2424 * it the same way in the preview pane, so as to show
2425 * it the way it will actually be displayed - and we
2426 * deliberately pick a pangram which will show the
2427 * resulting miskerning at its worst.
2429 * We aren't trying to sell people these fonts; we're
2430 * trying to let them make an informed choice. Better
2431 * that they find out the problems with using
2432 * proportional fonts in terminal windows here than
2433 * that they go to the effort of selecting their font
2434 * and _then_ realise it was a mistake.
2436 info->fontclass->draw_text(dctx, font,
2438 L"bankrupt jilted showmen quiz convex fogey",
2439 41, FALSE, FALSE, font->width);
2440 info->fontclass->draw_text(dctx, font,
2441 0, font->ascent + font->height,
2442 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2443 41, FALSE, FALSE, font->width);
2445 * The ordering of punctuation here is also selected
2446 * with some specific aims in mind. I put ` and '
2447 * together because some software (and people) still
2448 * use them as matched quotes no matter what Unicode
2449 * might say on the matter, so people can quickly
2450 * check whether they look silly in a candidate font.
2451 * The sequence #_@ is there to let people judge the
2452 * suitability of the underscore as an effectively
2453 * alphabetic character (since that's how it's often
2454 * used in practice, at least by programmers).
2456 info->fontclass->draw_text(dctx, font,
2457 0, font->ascent + font->height * 2,
2458 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2459 42, FALSE, FALSE, font->width);
2461 info->fontclass->destroy(font);
2467 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2469 unifont_drawctx dctx;
2472 #ifndef NO_BACKING_PIXMAPS
2473 target = fs->preview_pixmap;
2475 target = gtk_widget_get_window(fs->preview_area);
2477 if (!target) /* we may be called when we haven't created everything yet */
2480 dctx.type = DRAWTYPE_DEFAULT;
2481 #ifdef DRAW_TEXT_GDK
2482 if (dctx.type == DRAWTYPE_GDK) {
2483 dctx.u.gdk.target = target;
2484 dctx.u.gdk.gc = gdk_gc_new(target);
2487 #ifdef DRAW_TEXT_CAIRO
2488 if (dctx.type == DRAWTYPE_CAIRO) {
2489 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2490 dctx.u.cairo.cr = gdk_cairo_create(target);
2494 unifontsel_draw_preview_text_inner(&dctx, fs);
2496 #ifdef DRAW_TEXT_GDK
2497 if (dctx.type == DRAWTYPE_GDK) {
2498 gdk_gc_unref(dctx.u.gdk.gc);
2501 #ifdef DRAW_TEXT_CAIRO
2502 if (dctx.type == DRAWTYPE_CAIRO) {
2503 cairo_destroy(dctx.u.cairo.cr);
2507 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2511 static void unifontsel_select_font(unifontsel_internal *fs,
2512 fontinfo *info, int size, int leftlist,
2513 int size_is_explicit)
2518 GtkTreePath *treepath;
2521 fs->inhibit_response = TRUE;
2523 fs->selected = info;
2525 if (size_is_explicit)
2526 fs->intendedsize = size;
2528 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2531 * Find the index of this fontinfo in the selorder list.
2534 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2538 * Adjust the font selector flags and redo the font family
2539 * list box, if necessary.
2541 if (leftlist <= 0 &&
2542 (fs->filter_flags | info->flags) != fs->filter_flags) {
2543 fs->filter_flags |= info->flags;
2544 unifontsel_set_filter_buttons(fs);
2545 unifontsel_setup_familylist(fs);
2549 * Find the appropriate family name and select it in the list.
2551 assert(info->familyindex >= 0);
2552 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2553 gtk_tree_selection_select_path
2554 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2556 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2557 treepath, NULL, FALSE, 0.0, 0.0);
2558 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2561 gtk_tree_path_free(treepath);
2564 * Now set up the font style list.
2566 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2567 1, &minval, 2, &maxval, -1);
2569 unifontsel_setup_stylelist(fs, minval, maxval);
2572 * Find the appropriate style name and select it in the list.
2575 assert(info->styleindex >= 0);
2576 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2577 gtk_tree_selection_select_path
2578 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2580 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2581 treepath, NULL, FALSE, 0.0, 0.0);
2582 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2584 gtk_tree_path_free(treepath);
2587 * And set up the size list.
2589 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2590 1, &minval, 2, &maxval, -1);
2592 unifontsel_setup_sizelist(fs, minval, maxval);
2595 * Find the appropriate size, and select it in the list.
2598 assert(info->sizeindex >= 0);
2599 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2600 gtk_tree_selection_select_path
2601 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2603 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2604 treepath, NULL, FALSE, 0.0, 0.0);
2605 gtk_tree_path_free(treepath);
2609 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2610 if (unifontsel_default_sizes[j] == size) {
2611 treepath = gtk_tree_path_new_from_indices(j, -1);
2612 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2613 treepath, NULL, FALSE);
2614 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2615 treepath, NULL, FALSE, 0.0,
2617 gtk_tree_path_free(treepath);
2622 * And set up the font size text entry box.
2626 sprintf(sizetext, "%d", size);
2627 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2631 unifontsel_setup_sizelist(fs, 0, 0);
2632 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2636 * Grey out the font size edit box if we're not using a
2639 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2640 fs->selected->size == 0);
2641 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2643 unifontsel_draw_preview_text(fs);
2645 fs->inhibit_response = FALSE;
2648 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2650 unifontsel_internal *fs = (unifontsel_internal *)data;
2651 int newstate = gtk_toggle_button_get_active(tb);
2653 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2657 newflags = fs->filter_flags | flagbit;
2659 newflags = fs->filter_flags & ~flagbit;
2661 if (fs->filter_flags != newflags) {
2662 fs->filter_flags = newflags;
2663 unifontsel_setup_familylist(fs);
2667 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2668 const char *family, const char *charset,
2669 const char *style, const char *stylekey,
2670 int size, int flags,
2671 const struct unifont_vtable *fontclass)
2673 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2678 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2679 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2680 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2681 info = (fontinfo *)smalloc(totalsize);
2682 info->fontclass = fontclass;
2683 p = (char *)info + sizeof(fontinfo);
2685 strcpy(p, realfontname);
2692 info->family = NULL;
2698 info->charset = NULL;
2707 strcpy(p, stylekey);
2710 info->stylekey = NULL;
2711 assert(p - (char *)info <= totalsize);
2713 info->flags = flags;
2714 info->index = count234(fs->fonts_by_selorder);
2717 * It's just conceivable that a misbehaving font enumerator
2718 * might tell us about the same font real name more than once,
2719 * in which case we should silently drop the new one.
2721 if (add234(fs->fonts_by_realname, info) != info) {
2726 * However, we should never get a duplicate key in the
2727 * selorder tree, because the index field carefully
2728 * disambiguates otherwise identical records.
2730 add234(fs->fonts_by_selorder, info);
2733 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2736 fontinfo info2, *below, *above;
2740 * Copy the info structure. This doesn't copy its dynamic
2741 * string fields, but that's unimportant because all we're
2742 * going to do is to adjust the size field and use it in one
2746 info2.size = fs->intendedsize;
2749 * Search in the tree to find the fontinfo structure which
2750 * best approximates the size the user last requested.
2752 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2756 above = index234(fs->fonts_by_selorder, pos+1);
2759 * See if we've found it exactly, which is an easy special
2760 * case. If we have, it'll be in `below' and not `above',
2761 * because we did a REL234_LE rather than REL234_LT search.
2763 if (below && !fontinfo_selorder_compare(&info2, below))
2767 * Now we've either found two suitable fonts, one smaller and
2768 * one larger, or we're at one or other extreme end of the
2769 * scale. Find out which, by NULLing out either of below and
2770 * above if it differs from this one in any respect but size
2771 * (and the disambiguating index field). Bear in mind, also,
2772 * that either one might _already_ be NULL if we're at the
2773 * extreme ends of the font list.
2776 info2.size = below->size;
2777 info2.index = below->index;
2778 if (fontinfo_selorder_compare(&info2, below))
2782 info2.size = above->size;
2783 info2.index = above->index;
2784 if (fontinfo_selorder_compare(&info2, above))
2789 * Now return whichever of above and below is non-NULL, if
2790 * that's unambiguous.
2798 * And now we really do have to make a choice about whether to
2799 * round up or down. We'll do it by rounding to nearest,
2800 * breaking ties by rounding up.
2802 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2808 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2810 unifontsel_internal *fs = (unifontsel_internal *)data;
2811 GtkTreeModel *treemodel;
2812 GtkTreeIter treeiter;
2816 if (fs->inhibit_response) /* we made this change ourselves */
2819 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2822 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2823 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2824 info = update_for_intended_size(fs, info);
2826 return; /* _shouldn't_ happen unless font list is completely funted */
2828 fs->selsize = fs->intendedsize; /* font is scalable */
2829 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2833 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2835 unifontsel_internal *fs = (unifontsel_internal *)data;
2836 GtkTreeModel *treemodel;
2837 GtkTreeIter treeiter;
2841 if (fs->inhibit_response) /* we made this change ourselves */
2844 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2847 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2849 return; /* somehow a charset heading got clicked */
2850 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2851 info = update_for_intended_size(fs, info);
2853 return; /* _shouldn't_ happen unless font list is completely funted */
2855 fs->selsize = fs->intendedsize; /* font is scalable */
2856 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2860 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2862 unifontsel_internal *fs = (unifontsel_internal *)data;
2863 GtkTreeModel *treemodel;
2864 GtkTreeIter treeiter;
2868 if (fs->inhibit_response) /* we made this change ourselves */
2871 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2874 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2875 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2876 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2879 static void size_entry_changed(GtkEditable *ed, gpointer data)
2881 unifontsel_internal *fs = (unifontsel_internal *)data;
2885 if (fs->inhibit_response) /* we made this change ourselves */
2888 text = gtk_entry_get_text(GTK_ENTRY(ed));
2892 assert(fs->selected->size == 0);
2893 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2897 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2898 GtkTreeViewColumn *column, gpointer data)
2900 unifontsel_internal *fs = (unifontsel_internal *)data;
2902 int minval, newsize;
2903 fontinfo *info, *newinfo;
2906 if (fs->inhibit_response) /* we made this change ourselves */
2909 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2910 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2911 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2914 struct fontinfo_realname_find f;
2916 newname = info->fontclass->canonify_fontname
2917 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2919 f.realname = newname;
2921 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2925 return; /* font name not in our index */
2926 if (newinfo == info)
2927 return; /* didn't change under canonification => not an alias */
2928 unifontsel_select_font(fs, newinfo,
2929 newinfo->size ? newinfo->size : newsize,
2934 #if GTK_CHECK_VERSION(3,0,0)
2935 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
2937 unifontsel_internal *fs = (unifontsel_internal *)data;
2938 unifont_drawctx dctx;
2940 dctx.type = DRAWTYPE_CAIRO;
2941 dctx.u.cairo.widget = widget;
2942 dctx.u.cairo.cr = cr;
2943 unifontsel_draw_preview_text_inner(&dctx, fs);
2948 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2951 unifontsel_internal *fs = (unifontsel_internal *)data;
2953 #ifndef NO_BACKING_PIXMAPS
2954 if (fs->preview_pixmap) {
2955 gdk_draw_pixmap(gtk_widget_get_window(widget),
2956 (gtk_widget_get_style(widget)->fg_gc
2957 [gtk_widget_get_state(widget)]),
2959 event->area.x, event->area.y,
2960 event->area.x, event->area.y,
2961 event->area.width, event->area.height);
2964 unifontsel_draw_preview_text(fs);
2971 static gint unifontsel_configure_area(GtkWidget *widget,
2972 GdkEventConfigure *event, gpointer data)
2974 #ifndef NO_BACKING_PIXMAPS
2975 unifontsel_internal *fs = (unifontsel_internal *)data;
2976 int ox, oy, nx, ny, x, y;
2979 * Enlarge the pixmap, but never shrink it.
2981 ox = fs->preview_width;
2982 oy = fs->preview_height;
2985 if (x > ox || y > oy) {
2986 if (fs->preview_pixmap)
2987 gdk_pixmap_unref(fs->preview_pixmap);
2989 nx = (x > ox ? x : ox);
2990 ny = (y > oy ? y : oy);
2991 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2993 fs->preview_width = nx;
2994 fs->preview_height = ny;
2996 unifontsel_draw_preview_text(fs);
3000 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
3005 unifontsel *unifontsel_new(const char *wintitle)
3007 unifontsel_internal *fs = snew(unifontsel_internal);
3008 GtkWidget *table, *label, *w, *ww, *scroll;
3009 GtkListStore *model;
3010 GtkTreeViewColumn *column;
3011 int lists_height, preview_height, font_width, style_width, size_width;
3014 fs->inhibit_response = FALSE;
3015 fs->selected = NULL;
3021 * Invent some magic size constants.
3023 get_label_text_dimensions("Quite Long Font Name (Foundry)",
3026 lists_height = 14 * height;
3027 preview_height = 5 * height;
3029 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
3030 style_width = width;
3032 get_label_text_dimensions("48000", &width, &height);
3037 * Create the dialog box and initialise the user-visible
3038 * fields in the returned structure.
3040 fs->u.user_data = NULL;
3041 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3042 gtk_window_set_title(fs->u.window, wintitle);
3043 fs->u.cancel_button = gtk_dialog_add_button
3044 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3045 fs->u.ok_button = gtk_dialog_add_button
3046 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3047 gtk_widget_grab_default(fs->u.ok_button);
3050 * Now set up the internal fields, including in particular all
3051 * the controls that actually allow the user to select fonts.
3053 #if GTK_CHECK_VERSION(3,0,0)
3054 table = gtk_grid_new();
3055 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3057 table = gtk_table_new(8, 3, FALSE);
3058 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3060 gtk_widget_show(table);
3062 #if GTK_CHECK_VERSION(3,0,0)
3063 /* GtkAlignment has become deprecated and we use the "margin"
3066 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3067 #elif GTK_CHECK_VERSION(2,4,0)
3068 /* GtkAlignment seems to be the simplest way to put padding round things */
3069 w = gtk_alignment_new(0, 0, 1, 1);
3070 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3071 gtk_container_add(GTK_CONTAINER(w), table);
3074 /* In GTK < 2.4, even that isn't available */
3078 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3079 (GTK_DIALOG(fs->u.window))),
3082 label = gtk_label_new_with_mnemonic("_Font:");
3083 gtk_widget_show(label);
3084 align_label_left(GTK_LABEL(label));
3085 #if GTK_CHECK_VERSION(3,0,0)
3086 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3087 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3089 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3093 * The Font list box displays only a string, but additionally
3094 * stores two integers which give the limits within the
3095 * tree234 of the font entries covered by this list entry.
3097 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3098 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3099 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3100 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3102 column = gtk_tree_view_column_new_with_attributes
3103 ("Font", gtk_cell_renderer_text_new(),
3104 "text", 0, (char *)NULL);
3105 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3106 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3107 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3108 "changed", G_CALLBACK(family_changed), fs);
3109 g_signal_connect(G_OBJECT(w), "row-activated",
3110 G_CALLBACK(alias_resolve), fs);
3112 scroll = gtk_scrolled_window_new(NULL, NULL);
3113 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3115 gtk_container_add(GTK_CONTAINER(scroll), w);
3116 gtk_widget_show(scroll);
3117 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3118 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3119 gtk_widget_set_size_request(scroll, font_width, lists_height);
3120 #if GTK_CHECK_VERSION(3,0,0)
3121 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3122 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3124 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3125 GTK_EXPAND | GTK_FILL, 0, 0);
3127 fs->family_model = model;
3128 fs->family_list = w;
3130 label = gtk_label_new_with_mnemonic("_Style:");
3131 gtk_widget_show(label);
3132 align_label_left(GTK_LABEL(label));
3133 #if GTK_CHECK_VERSION(3,0,0)
3134 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3135 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3137 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3141 * The Style list box can contain insensitive elements
3142 * (character set headings for server-side fonts), so we add
3143 * an extra column to the list store to hold that information.
3145 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3147 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3148 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3149 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3151 column = gtk_tree_view_column_new_with_attributes
3152 ("Style", gtk_cell_renderer_text_new(),
3153 "text", 0, "sensitive", 3, (char *)NULL);
3154 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3155 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3156 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3157 "changed", G_CALLBACK(style_changed), fs);
3159 scroll = gtk_scrolled_window_new(NULL, NULL);
3160 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3162 gtk_container_add(GTK_CONTAINER(scroll), w);
3163 gtk_widget_show(scroll);
3164 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3165 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3166 gtk_widget_set_size_request(scroll, style_width, lists_height);
3167 #if GTK_CHECK_VERSION(3,0,0)
3168 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3169 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3171 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3172 GTK_EXPAND | GTK_FILL, 0, 0);
3174 fs->style_model = model;
3177 label = gtk_label_new_with_mnemonic("Si_ze:");
3178 gtk_widget_show(label);
3179 align_label_left(GTK_LABEL(label));
3180 #if GTK_CHECK_VERSION(3,0,0)
3181 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3182 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3184 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3188 * The Size label attaches primarily to a text input box so
3189 * that the user can select a size of their choice. The list
3190 * of available sizes is secondary.
3192 fs->size_entry = w = gtk_entry_new();
3193 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3194 gtk_widget_set_size_request(w, size_width, -1);
3196 #if GTK_CHECK_VERSION(3,0,0)
3197 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3198 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3200 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3202 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3205 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3206 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3207 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3209 column = gtk_tree_view_column_new_with_attributes
3210 ("Size", gtk_cell_renderer_text_new(),
3211 "text", 0, (char *)NULL);
3212 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3213 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3214 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3215 "changed", G_CALLBACK(size_changed), fs);
3217 scroll = gtk_scrolled_window_new(NULL, NULL);
3218 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3220 gtk_container_add(GTK_CONTAINER(scroll), w);
3221 gtk_widget_show(scroll);
3222 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3223 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3224 #if GTK_CHECK_VERSION(3,0,0)
3225 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3226 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3228 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3229 GTK_EXPAND | GTK_FILL, 0, 0);
3231 fs->size_model = model;
3237 fs->preview_area = gtk_drawing_area_new();
3238 #ifndef NO_BACKING_PIXMAPS
3239 fs->preview_pixmap = NULL;
3241 fs->preview_width = 0;
3242 fs->preview_height = 0;
3243 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3244 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3245 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3246 #if !GTK_CHECK_VERSION(3,0,0)
3247 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3249 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3252 #if GTK_CHECK_VERSION(3,0,0)
3253 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3254 G_CALLBACK(unifontsel_draw_area), fs);
3256 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3257 G_CALLBACK(unifontsel_expose_area), fs);
3259 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3260 G_CALLBACK(unifontsel_configure_area), fs);
3261 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3262 gtk_widget_show(fs->preview_area);
3263 ww = fs->preview_area;
3264 w = gtk_frame_new(NULL);
3265 gtk_container_add(GTK_CONTAINER(w), ww);
3268 #if GTK_CHECK_VERSION(3,0,0)
3269 /* GtkAlignment has become deprecated and we use the "margin"
3271 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3272 #elif GTK_CHECK_VERSION(2,4,0)
3274 /* GtkAlignment seems to be the simplest way to put padding round things */
3275 w = gtk_alignment_new(0, 0, 1, 1);
3276 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3277 gtk_container_add(GTK_CONTAINER(w), ww);
3282 w = gtk_frame_new("Preview of font");
3283 gtk_container_add(GTK_CONTAINER(w), ww);
3285 #if GTK_CHECK_VERSION(3,0,0)
3286 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3287 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3289 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3290 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3294 * We only provide the checkboxes for client- and server-side
3295 * fonts if we have the X11 back end available, because that's the
3296 * only situation in which more than one class of font is
3299 fs->n_filter_buttons = 0;
3300 #ifndef NOT_X_WINDOWS
3301 w = gtk_check_button_new_with_label("Show client-side fonts");
3302 g_object_set_data(G_OBJECT(w), "user-data",
3303 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3304 g_signal_connect(G_OBJECT(w), "toggled",
3305 G_CALLBACK(unifontsel_button_toggled), fs);
3307 fs->filter_buttons[fs->n_filter_buttons++] = w;
3308 #if GTK_CHECK_VERSION(3,0,0)
3309 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3310 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3312 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3314 w = gtk_check_button_new_with_label("Show server-side fonts");
3315 g_object_set_data(G_OBJECT(w), "user-data",
3316 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3317 g_signal_connect(G_OBJECT(w), "toggled",
3318 G_CALLBACK(unifontsel_button_toggled), fs);
3320 fs->filter_buttons[fs->n_filter_buttons++] = w;
3321 #if GTK_CHECK_VERSION(3,0,0)
3322 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3323 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3325 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3327 w = gtk_check_button_new_with_label("Show server-side font aliases");
3328 g_object_set_data(G_OBJECT(w), "user-data",
3329 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3330 g_signal_connect(G_OBJECT(w), "toggled",
3331 G_CALLBACK(unifontsel_button_toggled), fs);
3333 fs->filter_buttons[fs->n_filter_buttons++] = w;
3334 #if GTK_CHECK_VERSION(3,0,0)
3335 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3336 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3338 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3340 #endif /* NOT_X_WINDOWS */
3341 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3342 g_object_set_data(G_OBJECT(w), "user-data",
3343 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3344 g_signal_connect(G_OBJECT(w), "toggled",
3345 G_CALLBACK(unifontsel_button_toggled), fs);
3347 fs->filter_buttons[fs->n_filter_buttons++] = w;
3348 #if GTK_CHECK_VERSION(3,0,0)
3349 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3350 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3352 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3355 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3356 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3357 FONTFLAG_SERVERALIAS;
3358 unifontsel_set_filter_buttons(fs);
3361 * Go and find all the font names, and set up our master font
3364 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3365 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3366 for (i = 0; i < lenof(unifont_types); i++)
3367 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3368 unifontsel_add_entry, fs);
3371 * And set up the initial font names list.
3373 unifontsel_setup_familylist(fs);
3375 fs->selsize = fs->intendedsize = 13; /* random default */
3376 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3378 return (unifontsel *)fs;
3381 void unifontsel_destroy(unifontsel *fontsel)
3383 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3386 #ifndef NO_BACKING_PIXMAPS
3387 if (fs->preview_pixmap)
3388 gdk_pixmap_unref(fs->preview_pixmap);
3391 freetree234(fs->fonts_by_selorder);
3392 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3394 freetree234(fs->fonts_by_realname);
3396 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3400 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3402 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3403 int i, start, end, size, flags;
3404 const char *fontname2 = NULL;
3408 * Provide a default if given an empty or null font name.
3410 if (!fontname || !*fontname)
3411 fontname = DEFAULT_GTK_FONT;
3414 * Call the canonify_fontname function.
3416 fontname = unifont_do_prefix(fontname, &start, &end);
3417 for (i = start; i < end; i++) {
3418 fontname2 = unifont_types[i]->canonify_fontname
3419 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3424 return; /* font name not recognised */
3427 * Now look up the canonified font name in our index.
3430 struct fontinfo_realname_find f;
3431 f.realname = fontname2;
3433 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3437 * If we've found the font, and its size field is either
3438 * correct or zero (the latter indicating a scalable font),
3439 * then we're done. Otherwise, try looking up the original
3440 * font name instead.
3442 if (!info || (info->size != size && info->size != 0)) {
3443 struct fontinfo_realname_find f;
3444 f.realname = fontname;
3447 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3448 if (!info || info->size != size)
3449 return; /* font name not in our index */
3453 * Now we've got a fontinfo structure and a font size, so we
3454 * know everything we need to fill in all the fields in the
3457 unifontsel_select_font(fs, info, size, 0, TRUE);
3460 char *unifontsel_get_name(unifontsel *fontsel)
3462 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3468 if (fs->selected->size == 0) {
3469 name = fs->selected->fontclass->scale_fontname
3470 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3472 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3479 return dupcat(fs->selected->fontclass->prefix, ":",
3480 fs->selected->realname, NULL);
3483 #endif /* GTK_CHECK_VERSION(2,0,0) */