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>
23 #include "gtkcompat.h"
29 #include <X11/Xutil.h>
30 #include <X11/Xatom.h>
36 * - it would be nice to have a display of the current font name,
37 * and in particular whether it's client- or server-side,
38 * during the progress of the font selector.
41 #if !GLIB_CHECK_VERSION(1,3,7)
42 #define g_ascii_strcasecmp g_strcasecmp
43 #define g_ascii_strncasecmp g_strncasecmp
47 * Ad-hoc vtable mechanism to allow font structures to be
50 * Any instance of `unifont' used in the vtable functions will
51 * actually be the first element of a larger structure containing
52 * data specific to the subtype. This is permitted by the ISO C
53 * provision that one may safely cast between a pointer to a
54 * structure and a pointer to its first element.
57 #define FONTFLAG_CLIENTSIDE 0x0001
58 #define FONTFLAG_SERVERSIDE 0x0002
59 #define FONTFLAG_SERVERALIAS 0x0004
60 #define FONTFLAG_NONMONOSPACED 0x0008
62 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
64 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
65 const char *family, const char *charset,
66 const char *style, const char *stylekey,
68 const struct unifont_vtable *fontclass);
70 struct unifont_vtable {
72 * `Methods' of the `class'.
74 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
75 int shadowoffset, int shadowalways);
76 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
77 int bold, int shadowoffset, int shadowalways);
78 void (*destroy)(unifont *font);
79 int (*has_glyph)(unifont *font, wchar_t glyph);
80 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
81 int x, int y, const wchar_t *string, int len,
82 int wide, int bold, int cellwidth);
83 void (*enum_fonts)(GtkWidget *widget,
84 fontsel_add_entry callback, void *callback_ctx);
85 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
86 int *flags, int resolve_aliases);
87 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
90 * `Static data members' of the `class'.
97 /* ----------------------------------------------------------------------
98 * X11 font implementation, directly using Xlib calls. Conditioned out
99 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
100 * back end other than X).
103 static int x11font_has_glyph(unifont *font, wchar_t glyph);
104 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
105 int x, int y, const wchar_t *string, int len,
106 int wide, int bold, int cellwidth);
107 static unifont *x11font_create(GtkWidget *widget, const char *name,
109 int shadowoffset, int shadowalways);
110 static void x11font_destroy(unifont *font);
111 static void x11font_enum_fonts(GtkWidget *widget,
112 fontsel_add_entry callback, void *callback_ctx);
113 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
114 int *size, int *flags,
115 int resolve_aliases);
116 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
119 #ifdef DRAW_TEXT_CAIRO
120 struct cairo_cached_glyph {
121 cairo_surface_t *surface;
122 unsigned char *bitmap;
127 * Structure storing a single physical XFontStruct, plus associated
130 typedef struct x11font_individual {
131 /* The XFontStruct itself. */
135 * The `allocated' flag indicates whether we've tried to fetch
136 * this subfont already (thus distinguishing xfs==NULL because we
137 * haven't tried yet from xfs==NULL because we tried and failed,
138 * so that we don't keep trying and failing subsequently).
142 #ifdef DRAW_TEXT_CAIRO
144 * A cache of glyph bitmaps downloaded from the X server when
145 * we're in Cairo rendering mode. If glyphcache itself is
146 * non-NULL, then entries in [0,nglyphs) are expected to be
147 * initialised to either NULL or a bitmap pointer.
149 struct cairo_cached_glyph *glyphcache;
153 * X server paraphernalia for actually downloading the glyphs.
157 int pixwidth, pixheight, pixoriginx, pixoriginy;
160 * Paraphernalia for loading the resulting bitmaps into Cairo.
162 int rowsize, allsize, indexflip;
165 } x11font_individual;
170 * Individual physical X fonts. We store a number of these, for
171 * automatically guessed bold and wide variants.
173 x11font_individual fonts[4];
175 * `sixteen_bit' is true iff the font object is indexed by
176 * values larger than a byte. That is, this flag tells us
177 * whether we use XDrawString or XDrawString16, etc.
181 * `variable' is true iff the font is non-fixed-pitch. This
182 * enables some code which takes greater care over character
183 * positioning during text drawing.
187 * real_charset is the charset used when translating text into the
188 * font's internal encoding inside draw_text(). This need not be
189 * the same as the public_charset provided to the client; for
190 * example, public_charset might be CS_ISO8859_1 while
191 * real_charset is CS_ISO8859_1_X11.
195 * Data passed in to unifont_create().
197 int wide, bold, shadowoffset, shadowalways;
200 static const struct unifont_vtable x11font_vtable = {
202 NULL, /* no fallback fonts in X11 */
207 x11font_canonify_fontname,
208 x11font_scale_fontname,
212 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
214 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
215 Atom fontprop = XInternAtom(disp, "FONT", False);
217 if (XGetFontProperty(xfs, fontprop, &ret)) {
218 char *name = XGetAtomName(disp, (Atom)ret);
219 if (name && name[0] == '-') {
220 const char *strings[13];
221 char *dupname, *extrafree = NULL, *ret;
225 p = q = dupname = dupstr(name); /* skip initial minus */
228 while (*p && nstr < lenof(strings)) {
231 strings[nstr++] = p+1;
236 if (nstr < lenof(strings)) {
238 return NULL; /* XLFD was malformed */
245 /* 4 is `wideness', which obviously may have changed. */
246 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
247 strings[4] = strings[5] = "*";
248 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
251 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
252 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
253 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
254 "-", strings[ 9], "-", strings[10], "-", strings[11],
255 "-", strings[12], NULL);
265 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
271 return XTextWidth16(xfs, &space, 1);
273 return XTextWidth(xfs, "0", 1);
277 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
282 * Not to be confused with x11font_has_glyph, which is a method of
283 * the x11font 'class' and hence takes a unifont as argument. This
284 * is the low-level function which grubs about in an actual
285 * XFontStruct to see if a given glyph exists.
287 * We must do this ourselves rather than letting Xlib's
288 * XTextExtents16 do the job, because XTextExtents will helpfully
289 * substitute the font's default_char for any missing glyph and
290 * not tell us it did so, which precisely won't help us find out
291 * which glyphs _are_ missing.
293 * The man page for XQueryFont is rather confusing about how the
294 * per_char array in the XFontStruct is laid out, because it gives
295 * formulae for determining the two-byte X character code _from_
296 * an index into the per_char array. Going the other way, it's
299 * The valid character codes have byte1 between min_byte1 and
300 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
301 * max_char_or_byte2 inclusive. This gives a rectangle of size
302 * (max_byte2-min_byte1+1) by
303 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
304 * rectangle encoded in the per_char array. Hence, given a
305 * character code which is valid in the sense that it falls
306 * somewhere in that rectangle, its index in per_char is given by
309 * x = byte2 - min_char_or_byte2
310 * y = byte1 - min_byte1
311 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
313 * If min_byte1 and min_byte2 are both zero, that's a special case
314 * which can be treated as if min_byte2 was 1 instead, i.e. the
315 * per_char array just runs from min_char_or_byte2 to
316 * max_char_or_byte2 inclusive, and byte1 should always be zero.
319 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
322 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
323 index = byte2 - xfs->min_char_or_byte2;
325 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
327 index = ((byte2 - xfs->min_char_or_byte2) +
328 ((byte1 - xfs->min_byte1) *
329 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
332 if (!xfs->per_char) /* per_char NULL => everything in range exists */
335 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
336 xfs->per_char[index].width > 0);
339 static unifont *x11font_create(GtkWidget *widget, const char *name,
341 int shadowoffset, int shadowalways)
343 struct x11font *xfont;
345 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
346 Atom charset_registry, charset_encoding, spacing;
347 unsigned long registry_ret, encoding_ret, spacing_ret;
348 int pubcs, realcs, sixteen_bit, variable;
351 xfs = XLoadQueryFont(disp, name);
355 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
356 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
358 pubcs = realcs = CS_NONE;
362 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
363 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
365 reg = XGetAtomName(disp, (Atom)registry_ret);
366 enc = XGetAtomName(disp, (Atom)encoding_ret);
368 char *encoding = dupcat(reg, "-", enc, NULL);
369 pubcs = realcs = charset_from_xenc(encoding);
372 * iso10646-1 is the only wide font encoding we
373 * support. In this case, we expect clients to give us
374 * UTF-8, which this module must internally convert
375 * into 16-bit Unicode.
377 if (!strcasecmp(encoding, "iso10646-1")) {
379 pubcs = realcs = CS_UTF8;
383 * Hack for X line-drawing characters: if the primary font
384 * is encoded as ISO-8859-1, and has valid glyphs in the
385 * low character positions, it is assumed that those
386 * glyphs are the VT100 line-drawing character set.
388 if (pubcs == CS_ISO8859_1) {
390 for (ch = 1; ch < 32; ch++)
391 if (!x11_font_has_glyph(xfs, 0, ch))
394 realcs = CS_ISO8859_1_X11;
401 spacing = XInternAtom(disp, "SPACING", False);
402 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
404 spc = XGetAtomName(disp, (Atom)spacing_ret);
406 if (spc && strchr("CcMm", spc[0]))
410 xfont = snew(struct x11font);
411 xfont->u.vt = &x11font_vtable;
412 xfont->u.width = x11_font_width(xfs, sixteen_bit);
413 xfont->u.ascent = xfs->ascent;
414 xfont->u.descent = xfs->descent;
415 xfont->u.height = xfont->u.ascent + xfont->u.descent;
416 xfont->u.public_charset = pubcs;
417 xfont->u.want_fallback = TRUE;
419 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
420 #elif defined DRAW_TEXT_CAIRO
421 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
423 #error No drawtype available at all
425 xfont->real_charset = realcs;
426 xfont->sixteen_bit = sixteen_bit;
427 xfont->variable = variable;
430 xfont->shadowoffset = shadowoffset;
431 xfont->shadowalways = shadowalways;
433 for (i = 0; i < lenof(xfont->fonts); i++) {
434 xfont->fonts[i].xfs = NULL;
435 xfont->fonts[i].allocated = FALSE;
436 #ifdef DRAW_TEXT_CAIRO
437 xfont->fonts[i].glyphcache = NULL;
438 xfont->fonts[i].nglyphs = 0;
439 xfont->fonts[i].pixmap = None;
440 xfont->fonts[i].gc = None;
443 xfont->fonts[0].xfs = xfs;
444 xfont->fonts[0].allocated = TRUE;
446 return (unifont *)xfont;
449 static void x11font_destroy(unifont *font)
451 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
452 struct x11font *xfont = (struct x11font *)font;
455 for (i = 0; i < lenof(xfont->fonts); i++) {
456 if (xfont->fonts[i].xfs)
457 XFreeFont(disp, xfont->fonts[i].xfs);
458 #ifdef DRAW_TEXT_CAIRO
459 if (xfont->fonts[i].gc != None)
460 XFreeGC(disp, xfont->fonts[i].gc);
461 if (xfont->fonts[i].pixmap != None)
462 XFreePixmap(disp, xfont->fonts[i].pixmap);
463 if (xfont->fonts[i].glyphcache) {
465 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
466 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
467 sfree(xfont->fonts[i].glyphcache[j].bitmap);
469 sfree(xfont->fonts[i].glyphcache);
476 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
478 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
479 char *derived_name = x11_guess_derived_font_name
480 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
481 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
482 xfont->fonts[sfid].allocated = TRUE;
484 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
487 static int x11font_has_glyph(unifont *font, wchar_t glyph)
489 struct x11font *xfont = (struct x11font *)font;
491 if (xfont->sixteen_bit) {
493 * This X font has 16-bit character indices, which means
494 * we can directly use our Unicode input value.
496 return x11_font_has_glyph(xfont->fonts[0].xfs,
497 glyph >> 8, glyph & 0xFF);
500 * This X font has 8-bit indices, so we must convert to the
501 * appropriate character set.
504 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
505 sbstring, 2, "", NULL, NULL);
506 if (sblen == 0 || !sbstring[0])
507 return FALSE; /* not even in the charset */
509 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
510 (unsigned char)sbstring[0]);
514 #if !GTK_CHECK_VERSION(2,0,0)
515 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
516 #elif GTK_CHECK_VERSION(3,0,0)
517 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
520 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
521 const void *vstring, int start, int length)
523 const XChar2b *string = (const XChar2b *)vstring;
524 return XTextWidth16(xfi->xfs, string+start, length);
527 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
528 const void *vstring, int start, int length)
530 const char *string = (const char *)vstring;
531 return XTextWidth(xfi->xfs, string+start, length);
535 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
537 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
538 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
541 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
542 x11font_individual *xfi, int x, int y,
543 const void *vstring, int start, int length)
545 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
546 const XChar2b *string = (const XChar2b *)vstring;
547 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
548 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
551 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
552 x11font_individual *xfi, int x, int y,
553 const void *vstring, int start, int length)
555 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
556 const char *string = (const char *)vstring;
557 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
558 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
562 #ifdef DRAW_TEXT_CAIRO
563 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
565 if (xfi->pixmap == None) {
566 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
568 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
569 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
572 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
574 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
575 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
576 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
578 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
580 xfi->allsize = xfi->rowsize * xfi->pixheight;
584 * Test host endianness and use it to set xfi->indexflip,
585 * which is XORed into our left-shift counts in order to
586 * implement the CAIRO_FORMAT_A1 specification, in which
587 * each bitmap byte is oriented LSB-first on little-endian
588 * platforms and MSB-first on big-endian ones.
590 * This is the same technique Cairo itself uses to test
591 * endianness, so hopefully it'll work in any situation
592 * where Cairo is usable at all.
594 static const int endianness_test = 1;
595 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
598 xfi->pixmap = XCreatePixmap
600 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
601 xfi->pixwidth, xfi->pixheight, 1);
602 gcvals.foreground = WhitePixel(disp, widgetscr);
603 gcvals.background = BlackPixel(disp, widgetscr);
604 gcvals.font = xfi->xfs->fid;
605 xfi->gc = XCreateGC(disp, xfi->pixmap,
606 GCForeground | GCBackground | GCFont, &gcvals);
610 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
614 unsigned char *bitmap;
615 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
617 bitmap = snewn(xfi->allsize, unsigned char);
618 memset(bitmap, 0, xfi->allsize);
620 image = XGetImage(disp, xfi->pixmap, 0, 0,
621 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
622 for (y = 0; y < xfi->pixheight; y++) {
623 for (x = 0; x < xfi->pixwidth; x++) {
624 unsigned long pixel = XGetPixel(image, x, y);
626 int byteindex = y * xfi->rowsize + x/8;
627 int bitindex = (x & 7) ^ xfi->indexflip;
628 bitmap[byteindex] |= 1U << bitindex;
632 XDestroyImage(image);
634 if (xfi->nglyphs <= glyphindex) {
635 /* Round up to the next multiple of 256 on the general
636 * principle that Unicode characters come in contiguous blocks
637 * often used together */
638 int old_nglyphs = xfi->nglyphs;
639 xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
640 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
641 struct cairo_cached_glyph);
643 while (old_nglyphs < xfi->nglyphs) {
644 xfi->glyphcache[old_nglyphs].surface = NULL;
645 xfi->glyphcache[old_nglyphs].bitmap = NULL;
649 xfi->glyphcache[glyphindex].bitmap = bitmap;
650 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
651 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
654 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
655 x11font_individual *xfi, int x, int y,
658 if (xfi->glyphcache[glyphindex].surface) {
659 cairo_mask_surface(ctx->u.cairo.cr,
660 xfi->glyphcache[glyphindex].surface,
661 x - xfi->pixoriginx, y - xfi->pixoriginy);
665 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
666 x11font_individual *xfi, int x, int y,
667 const void *vstring, int start, int length)
669 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
670 const XChar2b *string = (const XChar2b *)vstring + start;
672 for (i = 0; i < length; i++) {
673 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
674 int glyphindex = (256 * (unsigned char)string[i].byte1 +
675 (unsigned char)string[i].byte2);
676 if (glyphindex >= xfi->nglyphs ||
677 !xfi->glyphcache[glyphindex].surface) {
678 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
679 xfi->pixoriginx, xfi->pixoriginy,
681 x11font_cairo_cache_glyph(xfi, glyphindex);
683 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
684 x += XTextWidth16(xfi->xfs, string+i, 1);
689 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
690 x11font_individual *xfi, int x, int y,
691 const void *vstring, int start, int length)
693 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
694 const char *string = (const char *)vstring + start;
696 for (i = 0; i < length; i++) {
697 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
698 int glyphindex = (unsigned char)string[i];
699 if (glyphindex >= xfi->nglyphs ||
700 !xfi->glyphcache[glyphindex].surface) {
701 XDrawImageString(disp, xfi->pixmap, xfi->gc,
702 xfi->pixoriginx, xfi->pixoriginy,
704 x11font_cairo_cache_glyph(xfi, glyphindex);
706 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
707 x += XTextWidth(xfi->xfs, string+i, 1);
711 #endif /* DRAW_TEXT_CAIRO */
713 struct x11font_drawfuncs {
714 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
715 const void *vstring, int start, int length);
716 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
717 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
718 const void *vstring, int start, int length);
722 * This array has two entries per compiled-in drawtype; of each pair,
723 * the first is for an 8-bit font and the second for 16-bit.
725 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
740 #ifdef DRAW_TEXT_CAIRO
745 x11font_cairo_draw_8,
747 /* [3] cairo, 16-bit */
751 x11font_cairo_draw_16,
756 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
757 unifont_drawctx *ctx,
758 x11font_individual *xfi, int x, int y,
759 const void *string, int nchars,
761 int fontvariable, int cellwidth)
763 int start = 0, step, nsteps, centre;
767 * In a variable-pitch font, we draw one character at a
768 * time, and centre it in the character cell.
775 * In a fixed-pitch font, we can draw the whole lot in one go.
782 dfns->setup(ctx, xfi);
784 while (nsteps-- > 0) {
787 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
789 dfns->draw(ctx, xfi, X, y, string, start, step);
791 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
798 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
799 int x, int y, const wchar_t *string, int len,
800 int wide, int bold, int cellwidth)
802 struct x11font *xfont = (struct x11font *)font;
804 int shadowoffset = 0;
805 int mult = (wide ? 2 : 1);
806 int index = 2 * (int)ctx->type;
812 * Decide which subfont we're using, and whether we have to
815 if (xfont->shadowalways && bold) {
816 shadowoffset = xfont->shadowoffset;
819 sfid = 2 * wide + bold;
820 if (!xfont->fonts[sfid].allocated)
821 x11_alloc_subfont(xfont, sfid);
822 if (bold && !xfont->fonts[sfid].xfs) {
824 shadowoffset = xfont->shadowoffset;
825 sfid = 2 * wide + bold;
826 if (!xfont->fonts[sfid].allocated)
827 x11_alloc_subfont(xfont, sfid);
830 if (!xfont->fonts[sfid].xfs)
831 return; /* we've tried our best, but no luck */
833 if (xfont->sixteen_bit) {
835 * This X font has 16-bit character indices, which means
836 * we can directly use our Unicode input string.
841 xcs = snewn(len, XChar2b);
842 for (i = 0; i < len; i++) {
843 xcs[i].byte1 = string[i] >> 8;
844 xcs[i].byte2 = string[i];
847 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
848 &xfont->fonts[sfid], x, y,
849 xcs, len, shadowoffset,
850 xfont->variable, cellwidth * mult);
854 * This X font has 8-bit indices, so we must convert to the
855 * appropriate character set.
857 char *sbstring = snewn(len+1, char);
858 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
859 sbstring, len+1, ".", NULL, NULL);
860 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
861 &xfont->fonts[sfid], x, y,
862 sbstring, sblen, shadowoffset,
863 xfont->variable, cellwidth * mult);
868 static void x11font_enum_fonts(GtkWidget *widget,
869 fontsel_add_entry callback, void *callback_ctx)
871 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
874 int nnames, i, max, tmpsize;
878 fontnames = XListFonts(disp, "*", max, &nnames);
880 XFreeFontNames(fontnames);
888 for (i = 0; i < nnames; i++) {
889 if (fontnames[i][0] == '-') {
891 * Dismember an XLFD and convert it into the format
892 * we'll be using in the font selector.
894 char *components[14];
895 char *p, *font, *style, *stylekey, *charset;
896 int j, weightkey, slantkey, setwidthkey;
897 int thistmpsize, fontsize, flags;
899 thistmpsize = 4 * strlen(fontnames[i]) + 256;
900 if (tmpsize < thistmpsize) {
901 tmpsize = thistmpsize;
902 tmp = sresize(tmp, tmpsize, char);
904 strcpy(tmp, fontnames[i]);
907 for (j = 0; j < 14; j++) {
911 while (*p && *p != '-')
917 * Font name is made up of fields 0 and 1, in reverse
918 * order with parentheses. (This is what the GTK 1.2 X
919 * font selector does, and it seems to come out
920 * looking reasonably sensible.)
923 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
926 * Charset is made up of fields 12 and 13.
929 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
932 * Style is a mixture of quite a lot of the fields,
933 * with some strange formatting.
936 p += sprintf(p, "%s", components[2][0] ? components[2] :
938 if (!g_ascii_strcasecmp(components[3], "i"))
939 p += sprintf(p, " italic");
940 else if (!g_ascii_strcasecmp(components[3], "o"))
941 p += sprintf(p, " oblique");
942 else if (!g_ascii_strcasecmp(components[3], "ri"))
943 p += sprintf(p, " reverse italic");
944 else if (!g_ascii_strcasecmp(components[3], "ro"))
945 p += sprintf(p, " reverse oblique");
946 else if (!g_ascii_strcasecmp(components[3], "ot"))
947 p += sprintf(p, " other-slant");
948 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
949 p += sprintf(p, " %s", components[4]);
950 if (!g_ascii_strcasecmp(components[10], "m"))
951 p += sprintf(p, " [M]");
952 if (!g_ascii_strcasecmp(components[10], "c"))
953 p += sprintf(p, " [C]");
954 if (components[5][0])
955 p += sprintf(p, " %s", components[5]);
958 * Style key is the same stuff as above, but with a
959 * couple of transformations done on it to make it
960 * sort more sensibly.
964 if (!g_ascii_strcasecmp(components[2], "medium") ||
965 !g_ascii_strcasecmp(components[2], "regular") ||
966 !g_ascii_strcasecmp(components[2], "normal") ||
967 !g_ascii_strcasecmp(components[2], "book"))
969 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
970 !g_ascii_strncasecmp(components[2], "semi", 4))
974 if (!g_ascii_strcasecmp(components[3], "r"))
976 else if (!g_ascii_strncasecmp(components[3], "r", 1))
980 if (!g_ascii_strcasecmp(components[4], "normal"))
985 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
987 (int)strlen(components[2]), components[2],
989 (int)strlen(components[3]), components[3],
991 (int)strlen(components[4]), components[4],
992 (int)strlen(components[10]), components[10],
993 (int)strlen(components[5]), components[5]);
995 assert(p - tmp < thistmpsize);
998 * Size is in pixels, for our application, so we
999 * derive it directly from the pixel size field,
1002 fontsize = atoi(components[6]);
1005 * Flags: we need to know whether this is a monospaced
1006 * font, which we do by examining the spacing field
1009 flags = FONTFLAG_SERVERSIDE;
1010 if (!strchr("CcMm", components[10][0]))
1011 flags |= FONTFLAG_NONMONOSPACED;
1014 * Not sure why, but sometimes the X server will
1015 * deliver dummy font types in which fontsize comes
1016 * out as zero. Filter those out.
1019 callback(callback_ctx, fontnames[i], font, charset,
1020 style, stylekey, fontsize, flags, &x11font_vtable);
1023 * This isn't an XLFD, so it must be an alias.
1024 * Transmit it with mostly null data.
1026 * It would be nice to work out if it's monospaced
1027 * here, but at the moment I can't see that being
1028 * anything but computationally hideous. Ah well.
1030 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1031 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1034 XFreeFontNames(fontnames);
1037 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1038 int *size, int *flags,
1039 int resolve_aliases)
1042 * When given an X11 font name to try to make sense of for a
1043 * font selector, we must attempt to load it (to see if it
1044 * exists), and then canonify it by extracting its FONT
1045 * property, which should give its full XLFD even if what we
1046 * originally had was a wildcard.
1048 * However, we must carefully avoid canonifying font
1049 * _aliases_, unless specifically asked to, because the font
1050 * selector treats them as worthwhile in their own right.
1053 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1054 Atom fontprop, fontprop2;
1057 xfs = XLoadQueryFont(disp, name);
1060 return NULL; /* didn't make sense to us, sorry */
1062 fontprop = XInternAtom(disp, "FONT", False);
1064 if (XGetFontProperty(xfs, fontprop, &ret)) {
1065 char *newname = XGetAtomName(disp, (Atom)ret);
1067 unsigned long fsize = 12;
1069 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1070 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1072 XFreeFont(disp, xfs);
1074 if (name[0] == '-' || resolve_aliases)
1075 *flags = FONTFLAG_SERVERSIDE;
1077 *flags = FONTFLAG_SERVERALIAS;
1079 return dupstr(name[0] == '-' || resolve_aliases ?
1085 XFreeFont(disp, xfs);
1087 return NULL; /* something went wrong */
1090 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1093 return NULL; /* shan't */
1096 #endif /* NOT_X_WINDOWS */
1098 #if GTK_CHECK_VERSION(2,0,0)
1100 /* ----------------------------------------------------------------------
1101 * Pango font implementation (for GTK 2 only).
1104 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1105 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1108 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1109 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1110 int x, int y, const wchar_t *string, int len,
1111 int wide, int bold, int cellwidth);
1112 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1114 int shadowoffset, int shadowalways);
1115 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1117 int shadowoffset, int shadowalways);
1118 static void pangofont_destroy(unifont *font);
1119 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1120 void *callback_ctx);
1121 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1122 int *size, int *flags,
1123 int resolve_aliases);
1124 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1132 PangoFontDescription *desc;
1135 * The containing widget.
1139 * Data passed in to unifont_create().
1141 int bold, shadowoffset, shadowalways;
1143 * Cache of character widths, indexed by Unicode code point. In
1144 * pixels; -1 means we haven't asked Pango about this character
1148 unsigned nwidthcache;
1151 static const struct unifont_vtable pangofont_vtable = {
1153 pangofont_create_fallback,
1155 pangofont_has_glyph,
1156 pangofont_draw_text,
1157 pangofont_enum_fonts,
1158 pangofont_canonify_fontname,
1159 pangofont_scale_fontname,
1164 * This function is used to rigorously validate a
1165 * PangoFontDescription. Later versions of Pango have a nasty
1166 * habit of accepting _any_ old string as input to
1167 * pango_font_description_from_string and returning a font
1168 * description which can actually be used to display text, even if
1169 * they have to do it by falling back to their most default font.
1170 * This is doubtless helpful in some situations, but not here,
1171 * because we need to know if a Pango font string actually _makes
1172 * sense_ in order to fall back to treating it as an X font name
1173 * if it doesn't. So we check that the font family is actually one
1174 * supported by Pango.
1176 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1177 PangoFontDescription *desc)
1179 #ifndef PANGO_PRE_1POINT6
1182 PangoFontFamily **families;
1183 int i, nfamilies, matched;
1186 * Ask Pango for a list of font families, and iterate through
1187 * them to see if one of them matches the family in the
1188 * PangoFontDescription.
1190 #ifndef PANGO_PRE_1POINT6
1191 map = pango_context_get_font_map(ctx);
1194 pango_font_map_list_families(map, &families, &nfamilies);
1196 pango_context_list_families(ctx, &families, &nfamilies);
1200 for (i = 0; i < nfamilies; i++) {
1201 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1202 pango_font_description_get_family(desc))) {
1212 static unifont *pangofont_create_internal(GtkWidget *widget,
1214 PangoFontDescription *desc,
1216 int shadowoffset, int shadowalways)
1218 struct pangofont *pfont;
1219 #ifndef PANGO_PRE_1POINT6
1223 PangoFontMetrics *metrics;
1225 #ifndef PANGO_PRE_1POINT6
1226 map = pango_context_get_font_map(ctx);
1228 pango_font_description_free(desc);
1231 fset = pango_font_map_load_fontset(map, ctx, desc,
1232 pango_context_get_language(ctx));
1234 fset = pango_context_load_fontset(ctx, desc,
1235 pango_context_get_language(ctx));
1238 pango_font_description_free(desc);
1241 metrics = pango_fontset_get_metrics(fset);
1243 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1244 pango_font_description_free(desc);
1245 g_object_unref(fset);
1249 pfont = snew(struct pangofont);
1250 pfont->u.vt = &pangofont_vtable;
1252 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1253 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1254 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1255 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1256 pfont->u.want_fallback = FALSE;
1257 #ifdef DRAW_TEXT_CAIRO
1258 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1259 #elif defined DRAW_TEXT_GDK
1260 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1262 #error No drawtype available at all
1264 /* The Pango API is hardwired to UTF-8 */
1265 pfont->u.public_charset = CS_UTF8;
1268 pfont->widget = widget;
1270 pfont->shadowoffset = shadowoffset;
1271 pfont->shadowalways = shadowalways;
1272 pfont->widthcache = NULL;
1273 pfont->nwidthcache = 0;
1275 pango_font_metrics_unref(metrics);
1277 return (unifont *)pfont;
1280 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1282 int shadowoffset, int shadowalways)
1285 PangoFontDescription *desc;
1287 desc = pango_font_description_from_string(name);
1290 ctx = gtk_widget_get_pango_context(widget);
1292 pango_font_description_free(desc);
1295 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1296 pango_font_description_free(desc);
1299 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1300 shadowoffset, shadowalways);
1303 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1305 int shadowoffset, int shadowalways)
1308 PangoFontDescription *desc;
1310 desc = pango_font_description_from_string("Monospace");
1313 ctx = gtk_widget_get_pango_context(widget);
1315 pango_font_description_free(desc);
1318 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1319 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1320 shadowoffset, shadowalways);
1323 static void pangofont_destroy(unifont *font)
1325 struct pangofont *pfont = (struct pangofont *)font;
1326 pango_font_description_free(pfont->desc);
1327 sfree(pfont->widthcache);
1328 g_object_unref(pfont->fset);
1332 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1333 wchar_t uchr, const char *utfchr, int utflen)
1336 * Here we check whether a character has the same width as the
1337 * character cell it'll be drawn in. Because profiling showed that
1338 * pango_layout_get_pixel_extents() was a huge bottleneck when we
1339 * were calling it every time we needed to know this, we instead
1340 * call it only on characters we don't already know about, and
1341 * cache the results.
1344 if ((unsigned)uchr >= pfont->nwidthcache) {
1345 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1346 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1347 while (pfont->nwidthcache < newsize)
1348 pfont->widthcache[pfont->nwidthcache++] = -1;
1351 if (pfont->widthcache[uchr] < 0) {
1352 PangoRectangle rect;
1353 pango_layout_set_text(layout, utfchr, utflen);
1354 pango_layout_get_pixel_extents(layout, NULL, &rect);
1355 pfont->widthcache[uchr] = rect.width;
1358 return pfont->widthcache[uchr];
1361 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1363 /* Pango implements font fallback, so assume it has everything */
1367 #ifdef DRAW_TEXT_GDK
1368 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1369 gint x, gint y, PangoLayout *layout)
1371 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1375 #ifdef DRAW_TEXT_CAIRO
1376 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1377 gint x, gint y, PangoLayout *layout)
1379 cairo_move_to(ctx->u.cairo.cr, x, y);
1380 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1384 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1385 int x, int y, const wchar_t *string, int len,
1386 int wide, int bold, int cellwidth)
1388 struct pangofont *pfont = (struct pangofont *)font;
1389 PangoLayout *layout;
1390 PangoRectangle rect;
1391 char *utfstring, *utfptr;
1393 int shadowbold = FALSE;
1394 void (*draw_layout)(unifont_drawctx *ctx,
1395 gint x, gint y, PangoLayout *layout) = NULL;
1397 #ifdef DRAW_TEXT_GDK
1398 if (ctx->type == DRAWTYPE_GDK) {
1399 draw_layout = pango_gdk_draw_layout;
1402 #ifdef DRAW_TEXT_CAIRO
1403 if (ctx->type == DRAWTYPE_CAIRO) {
1404 draw_layout = pango_cairo_draw_layout;
1411 y -= pfont->u.ascent;
1413 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1414 pango_layout_set_font_description(layout, pfont->desc);
1415 if (bold > pfont->bold) {
1416 if (pfont->shadowalways)
1419 PangoFontDescription *desc2 =
1420 pango_font_description_copy_static(pfont->desc);
1421 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1422 pango_layout_set_font_description(layout, desc2);
1427 * Pango always expects UTF-8, so convert the input wide character
1430 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1431 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1432 utfstring, len*6+1, ".", NULL, NULL);
1435 while (utflen > 0) {
1439 * We want to display every character from this string in
1440 * the centre of its own character cell. In the worst case,
1441 * this requires a separate text-drawing call for each
1442 * character; but in the common case where the font is
1443 * properly fixed-width, we can draw many characters in one
1444 * go which is much faster.
1446 * This still isn't really ideal. If you look at what
1447 * happens in the X protocol as a result of all of this, you
1448 * find - naturally enough - that each call to
1449 * gdk_draw_layout() generates a separate set of X RENDER
1450 * operations involving creating a picture, setting a clip
1451 * rectangle, doing some drawing and undoing the whole lot.
1452 * In an ideal world, we should _always_ be able to turn the
1453 * contents of this loop into a single RenderCompositeGlyphs
1454 * operation which internally specifies inter-character
1455 * deltas to get the spacing right, which would give us full
1456 * speed _even_ in the worst case of a non-fixed-width font.
1457 * However, Pango's architecture and documentation are so
1458 * unhelpful that I have no idea how if at all to persuade
1463 * Start by extracting a single UTF-8 character from the
1467 while (clen < utflen &&
1468 (unsigned char)utfptr[clen] >= 0x80 &&
1469 (unsigned char)utfptr[clen] < 0xC0)
1473 if (is_rtl(string[0]) ||
1474 pangofont_char_width(layout, pfont, string[n-1],
1475 utfptr, clen) != cellwidth) {
1477 * If this character is a right-to-left one, or has an
1478 * unusual width, then we must display it on its own.
1482 * Try to amalgamate a contiguous string of characters
1483 * with the expected sensible width, for the common case
1484 * in which we're using a monospaced font and everything
1485 * works as expected.
1487 while (clen < utflen) {
1489 clen++; /* skip UTF-8 introducer byte */
1490 while (clen < utflen &&
1491 (unsigned char)utfptr[clen] >= 0x80 &&
1492 (unsigned char)utfptr[clen] < 0xC0)
1495 if (pangofont_char_width(layout, pfont,
1496 string[n-1], utfptr + oldclen,
1497 clen - oldclen) != cellwidth) {
1505 pango_layout_set_text(layout, utfptr, clen);
1506 pango_layout_get_pixel_extents(layout, NULL, &rect);
1509 x + (n*cellwidth - rect.width)/2,
1510 y + (pfont->u.height - rect.height)/2, layout);
1513 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1514 y + (pfont->u.height - rect.height)/2, layout);
1524 g_object_unref(layout);
1528 * Dummy size value to be used when converting a
1529 * PangoFontDescription of a scalable font to a string for
1532 #define PANGO_DUMMY_SIZE 12
1534 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1538 #ifndef PANGO_PRE_1POINT6
1541 PangoFontFamily **families;
1544 ctx = gtk_widget_get_pango_context(widget);
1549 * Ask Pango for a list of font families, and iterate through
1552 #ifndef PANGO_PRE_1POINT6
1553 map = pango_context_get_font_map(ctx);
1556 pango_font_map_list_families(map, &families, &nfamilies);
1558 pango_context_list_families(ctx, &families, &nfamilies);
1560 for (i = 0; i < nfamilies; i++) {
1561 PangoFontFamily *family = families[i];
1562 const char *familyname;
1564 PangoFontFace **faces;
1568 * Set up our flags for this font family, and get the name
1571 flags = FONTFLAG_CLIENTSIDE;
1572 #ifndef PANGO_PRE_1POINT4
1574 * In very early versions of Pango, we can't tell
1575 * monospaced fonts from non-monospaced.
1577 if (!pango_font_family_is_monospace(family))
1578 flags |= FONTFLAG_NONMONOSPACED;
1580 familyname = pango_font_family_get_name(family);
1583 * Go through the available font faces in this family.
1585 pango_font_family_list_faces(family, &faces, &nfaces);
1586 for (j = 0; j < nfaces; j++) {
1587 PangoFontFace *face = faces[j];
1588 PangoFontDescription *desc;
1589 const char *facename;
1591 int k, nsizes, dummysize;
1594 * Get the face name string.
1596 facename = pango_font_face_get_face_name(face);
1599 * Set up a font description with what we've got so
1600 * far. We'll fill in the size field manually and then
1601 * call pango_font_description_to_string() to give the
1602 * full real name of the specific font.
1604 desc = pango_font_face_describe(face);
1607 * See if this font has a list of specific sizes.
1609 #ifndef PANGO_PRE_1POINT4
1610 pango_font_face_list_sizes(face, &sizes, &nsizes);
1613 * In early versions of Pango, that call wasn't
1614 * supported; we just have to assume everything is
1621 * Write a single entry with a dummy size.
1623 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1629 * If so, go through them one by one.
1631 for (k = 0; k < nsizes; k++) {
1635 pango_font_description_set_size(desc, sizes[k]);
1637 fullname = pango_font_description_to_string(desc);
1640 * Construct the sorting key for font styles.
1646 n = pango_font_description_get_weight(desc);
1647 /* Weight: normal, then lighter, then bolder */
1648 if (n <= PANGO_WEIGHT_NORMAL)
1649 n = PANGO_WEIGHT_NORMAL - n;
1650 p += sprintf(p, "%4d", n);
1652 n = pango_font_description_get_style(desc);
1653 p += sprintf(p, " %2d", n);
1655 n = pango_font_description_get_stretch(desc);
1656 /* Stretch: closer to normal sorts earlier */
1657 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1658 (n < PANGO_STRETCH_NORMAL);
1659 p += sprintf(p, " %2d", n);
1661 n = pango_font_description_get_variant(desc);
1662 p += sprintf(p, " %2d", n);
1667 * Got everything. Hand off to the callback.
1668 * (The charset string is NULL, because only
1669 * server-side X fonts use it.)
1671 callback(callback_ctx, fullname, familyname, NULL, facename,
1673 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1674 flags, &pangofont_vtable);
1678 if (sizes != &dummysize)
1681 pango_font_description_free(desc);
1688 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1689 int *size, int *flags,
1690 int resolve_aliases)
1693 * When given a Pango font name to try to make sense of for a
1694 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1695 * extract its original size (in pixels) into the `size' field.
1698 #ifndef PANGO_PRE_1POINT6
1701 PangoFontDescription *desc;
1703 PangoFontMetrics *metrics;
1704 char *newname, *retname;
1706 desc = pango_font_description_from_string(name);
1709 ctx = gtk_widget_get_pango_context(widget);
1711 pango_font_description_free(desc);
1714 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1715 pango_font_description_free(desc);
1718 #ifndef PANGO_PRE_1POINT6
1719 map = pango_context_get_font_map(ctx);
1721 pango_font_description_free(desc);
1724 fset = pango_font_map_load_fontset(map, ctx, desc,
1725 pango_context_get_language(ctx));
1727 fset = pango_context_load_fontset(ctx, desc,
1728 pango_context_get_language(ctx));
1731 pango_font_description_free(desc);
1734 metrics = pango_fontset_get_metrics(fset);
1736 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1737 pango_font_description_free(desc);
1738 g_object_unref(fset);
1742 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1743 *flags = FONTFLAG_CLIENTSIDE;
1744 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1745 newname = pango_font_description_to_string(desc);
1746 retname = dupstr(newname);
1749 pango_font_metrics_unref(metrics);
1750 pango_font_description_free(desc);
1751 g_object_unref(fset);
1756 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1759 PangoFontDescription *desc;
1760 char *newname, *retname;
1762 desc = pango_font_description_from_string(name);
1765 pango_font_description_set_size(desc, size * PANGO_SCALE);
1766 newname = pango_font_description_to_string(desc);
1767 retname = dupstr(newname);
1769 pango_font_description_free(desc);
1774 #endif /* GTK_CHECK_VERSION(2,0,0) */
1776 /* ----------------------------------------------------------------------
1777 * Outermost functions which do the vtable dispatch.
1781 * Complete list of font-type subclasses. Listed in preference
1782 * order for unifont_create(). (That is, in the extremely unlikely
1783 * event that the same font name is valid as both a Pango and an
1784 * X11 font, it will be interpreted as the former in the absence
1785 * of an explicit type-disambiguating prefix.)
1787 * The 'multifont' subclass is omitted here, as discussed above.
1789 static const struct unifont_vtable *unifont_types[] = {
1790 #if GTK_CHECK_VERSION(2,0,0)
1793 #ifndef NOT_X_WINDOWS
1799 * Function which takes a font name and processes the optional
1800 * scheme prefix. Returns the tail of the font name suitable for
1801 * passing to individual font scheme functions, and also provides
1802 * a subrange of the unifont_types[] array above.
1804 * The return values `start' and `end' denote a half-open interval
1805 * in unifont_types[]; that is, the correct way to iterate over
1808 * for (i = start; i < end; i++) {...}
1810 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1812 int colonpos = strcspn(name, ":");
1815 if (name[colonpos]) {
1817 * There's a colon prefix on the font name. Use it to work
1818 * out which subclass to use.
1820 for (i = 0; i < lenof(unifont_types); i++) {
1821 if (strlen(unifont_types[i]->prefix) == colonpos &&
1822 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1825 return name + colonpos + 1;
1829 * None matched, so return an empty scheme list to prevent
1830 * any scheme from being called at all.
1833 return name + colonpos + 1;
1836 * No colon prefix, so just use all the subclasses.
1839 *end = lenof(unifont_types);
1844 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1845 int bold, int shadowoffset, int shadowalways)
1849 name = unifont_do_prefix(name, &start, &end);
1851 for (i = start; i < end; i++) {
1852 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1853 shadowoffset, shadowalways);
1857 return NULL; /* font not found in any scheme */
1860 void unifont_destroy(unifont *font)
1862 font->vt->destroy(font);
1865 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1866 int x, int y, const wchar_t *string, int len,
1867 int wide, int bold, int cellwidth)
1869 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1872 /* ----------------------------------------------------------------------
1873 * Multiple-font wrapper. This is a type of unifont which encapsulates
1874 * up to two other unifonts, permitting missing glyphs in the main
1875 * font to be filled in by a fallback font.
1877 * This is a type of unifont just like the previous two, but it has a
1878 * separate constructor which is manually called by the client, so it
1879 * doesn't appear in the list of available font types enumerated by
1880 * unifont_create. This means it's not used by unifontsel either, so
1881 * it doesn't need to support any methods except draw_text and
1885 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1886 int x, int y, const wchar_t *string, int len,
1887 int wide, int bold, int cellwidth);
1888 static void multifont_destroy(unifont *font);
1896 static const struct unifont_vtable multifont_vtable = {
1897 NULL, /* creation is done specially */
1901 multifont_draw_text,
1908 unifont *multifont_create(GtkWidget *widget, const char *name,
1910 int shadowoffset, int shadowalways)
1913 unifont *font, *fallback;
1914 struct multifont *mfont;
1916 font = unifont_create(widget, name, wide, bold,
1917 shadowoffset, shadowalways);
1922 if (font->want_fallback) {
1923 for (i = 0; i < lenof(unifont_types); i++) {
1924 if (unifont_types[i]->create_fallback) {
1925 fallback = unifont_types[i]->create_fallback
1926 (widget, font->height, wide, bold,
1927 shadowoffset, shadowalways);
1935 * Construct our multifont. Public members are all copied from the
1936 * primary font we're wrapping.
1938 mfont = snew(struct multifont);
1939 mfont->u.vt = &multifont_vtable;
1940 mfont->u.width = font->width;
1941 mfont->u.ascent = font->ascent;
1942 mfont->u.descent = font->descent;
1943 mfont->u.height = font->height;
1944 mfont->u.public_charset = font->public_charset;
1945 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1946 mfont->u.preferred_drawtype = font->preferred_drawtype;
1948 mfont->fallback = fallback;
1950 return (unifont *)mfont;
1953 static void multifont_destroy(unifont *font)
1955 struct multifont *mfont = (struct multifont *)font;
1956 unifont_destroy(mfont->main);
1957 if (mfont->fallback)
1958 unifont_destroy(mfont->fallback);
1962 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1963 int y, const wchar_t *string, int len,
1964 int wide, int bold, int cellwidth)
1966 struct multifont *mfont = (struct multifont *)font;
1972 * Find a maximal sequence of characters which are, or are
1973 * not, supported by our main font.
1975 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1978 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1984 f = ok ? mfont->main : mfont->fallback;
1986 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1993 /* ----------------------------------------------------------------------
1994 * Utility routine used by the code below, and also gtkdlg.c.
1997 void get_label_text_dimensions(const char *text, int *width, int *height)
2000 * Determine the dimensions of a piece of text in the standard
2001 * font used in GTK interface elements like labels. We do this by
2002 * instantiating an actual GtkLabel, and then querying its size.
2004 * But GTK2 and GTK3 require us to query the size completely
2005 * differently. I'm sure there ought to be an easier approach than
2006 * the way I'm doing this in GTK3, too!
2008 GtkWidget *label = gtk_label_new(text);
2010 #if GTK_CHECK_VERSION(3,0,0)
2011 PangoLayout *layout = gtk_label_get_layout(GTK_LABEL(label));
2012 PangoRectangle logrect;
2013 pango_layout_get_extents(layout, NULL, &logrect);
2015 *width = logrect.width / PANGO_SCALE;
2017 *height = logrect.height / PANGO_SCALE;
2020 gtk_widget_size_request(label, &req);
2024 *height = req.height;
2027 g_object_ref_sink(G_OBJECT(label));
2028 #if GTK_CHECK_VERSION(2,10,0)
2029 g_object_unref(label);
2033 #if GTK_CHECK_VERSION(2,0,0)
2035 /* ----------------------------------------------------------------------
2036 * Implementation of a unified font selector. Used on GTK 2 only;
2037 * for GTK 1 we still use the standard font selector.
2040 typedef struct fontinfo fontinfo;
2042 typedef struct unifontsel_internal {
2043 /* This must be the structure's first element, for cross-casting */
2045 GtkListStore *family_model, *style_model, *size_model;
2046 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2047 GtkWidget *filter_buttons[4];
2048 int n_filter_buttons;
2049 GtkWidget *preview_area;
2050 #ifndef NO_BACKING_PIXMAPS
2051 GdkPixmap *preview_pixmap;
2053 int preview_width, preview_height;
2054 GdkColor preview_fg, preview_bg;
2056 tree234 *fonts_by_realname, *fonts_by_selorder;
2058 int selsize, intendedsize;
2059 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2060 } unifontsel_internal;
2063 * The structure held in the tree234s. All the string members are
2064 * part of the same allocated area, so don't need freeing
2069 char *family, *charset, *style, *stylekey;
2072 * Fallback sorting key, to permit multiple identical entries
2073 * to exist in the selorder tree.
2077 * Indices mapping fontinfo structures to indices in the list
2078 * boxes. sizeindex is irrelevant if the font is scalable
2081 int familyindex, styleindex, sizeindex;
2083 * The class of font.
2085 const struct unifont_vtable *fontclass;
2088 struct fontinfo_realname_find {
2089 const char *realname;
2093 static int strnullcasecmp(const char *a, const char *b)
2098 * If exactly one of the inputs is NULL, it compares before
2101 if ((i = (!b) - (!a)) != 0)
2105 * NULL compares equal.
2111 * Otherwise, ordinary strcasecmp.
2113 return g_ascii_strcasecmp(a, b);
2116 static int fontinfo_realname_compare(void *av, void *bv)
2118 fontinfo *a = (fontinfo *)av;
2119 fontinfo *b = (fontinfo *)bv;
2122 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2124 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2125 return ((a->flags & FONTFLAG_SORT_MASK) <
2126 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2130 static int fontinfo_realname_find(void *av, void *bv)
2132 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2133 fontinfo *b = (fontinfo *)bv;
2136 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2138 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2139 return ((a->flags & FONTFLAG_SORT_MASK) <
2140 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2144 static int fontinfo_selorder_compare(void *av, void *bv)
2146 fontinfo *a = (fontinfo *)av;
2147 fontinfo *b = (fontinfo *)bv;
2149 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2152 * Font class comes immediately after family, so that fonts
2153 * from different classes with the same family
2155 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2156 return ((a->flags & FONTFLAG_SORT_MASK) <
2157 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2158 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2160 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2162 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2164 if (a->size != b->size)
2165 return (a->size < b->size ? -1 : +1);
2166 if (a->index != b->index)
2167 return (a->index < b->index ? -1 : +1);
2171 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2173 static void unifontsel_deselect(unifontsel_internal *fs)
2175 fs->selected = NULL;
2176 gtk_list_store_clear(fs->style_model);
2177 gtk_list_store_clear(fs->size_model);
2178 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2179 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2180 unifontsel_draw_preview_text(fs);
2183 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2186 int i, listindex, minpos = -1, maxpos = -1;
2187 char *currfamily = NULL;
2191 fs->inhibit_response = TRUE;
2193 gtk_list_store_clear(fs->family_model);
2197 * Search through the font tree for anything matching our
2198 * current filter criteria. When we find one, add its font
2199 * name to the list box.
2201 for (i = 0 ;; i++) {
2202 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2204 * info may be NULL if we've just run off the end of the
2205 * tree. We must still do a processing pass in that
2206 * situation, in case we had an unfinished font record in
2209 if (info && (info->flags &~ fs->filter_flags)) {
2210 info->familyindex = -1;
2211 continue; /* we're filtering out this font */
2213 if (!info || strnullcasecmp(currfamily, info->family) ||
2214 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2216 * We've either finished a family, or started a new
2220 gtk_list_store_append(fs->family_model, &iter);
2221 gtk_list_store_set(fs->family_model, &iter,
2222 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2227 currfamily = info->family;
2228 currflags = info->flags & FONTFLAG_SORT_MASK;
2232 break; /* now we're done */
2233 info->familyindex = listindex;
2238 * If we've just filtered out the previously selected font,
2239 * deselect it thoroughly.
2241 if (fs->selected && fs->selected->familyindex < 0)
2242 unifontsel_deselect(fs);
2244 fs->inhibit_response = FALSE;
2247 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2251 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2252 char *currcs = NULL, *currstyle = NULL;
2255 gtk_list_store_clear(fs->style_model);
2260 * Search through the font tree for anything matching our
2261 * current filter criteria. When we find one, add its charset
2262 * and/or style name to the list box.
2264 for (i = start; i <= end; i++) {
2268 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2270 * info may be NULL if we've just run off the end of the
2271 * relevant data. We must still do a processing pass in
2272 * that situation, in case we had an unfinished font
2273 * record in progress.
2275 if (info && (info->flags &~ fs->filter_flags)) {
2276 info->styleindex = -1;
2277 continue; /* we're filtering out this font */
2279 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2280 strnullcasecmp(currstyle, info->style)) {
2282 * We've either finished a style/charset, or started a
2287 gtk_list_store_append(fs->style_model, &iter);
2288 gtk_list_store_set(fs->style_model, &iter,
2289 0, currstyle, 1, minpos, 2, maxpos+1,
2295 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2296 gtk_list_store_append(fs->style_model, &iter);
2297 gtk_list_store_set(fs->style_model, &iter,
2298 0, info->charset, 1, -1, 2, -1,
2302 currcs = info->charset;
2303 currstyle = info->style;
2307 break; /* now we're done */
2308 info->styleindex = listindex;
2313 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2315 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2323 gtk_list_store_clear(fs->size_model);
2327 * Search through the font tree for anything matching our
2328 * current filter criteria. When we find one, add its font
2329 * name to the list box.
2331 for (i = start; i < end; i++) {
2332 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2333 if (info->flags &~ fs->filter_flags) {
2334 info->sizeindex = -1;
2335 continue; /* we're filtering out this font */
2338 sprintf(sizetext, "%d", info->size);
2339 info->sizeindex = listindex;
2340 gtk_list_store_append(fs->size_model, &iter);
2341 gtk_list_store_set(fs->size_model, &iter,
2342 0, sizetext, 1, i, 2, info->size, -1);
2350 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2351 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2352 gtk_list_store_append(fs->size_model, &iter);
2353 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2354 2, unifontsel_default_sizes[j], -1);
2361 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2365 for (i = 0; i < fs->n_filter_buttons; i++) {
2366 int flagbit = GPOINTER_TO_INT(g_object_get_data
2367 (G_OBJECT(fs->filter_buttons[i]),
2369 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2370 !!(fs->filter_flags & flagbit));
2374 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2375 unifontsel_internal *fs)
2378 char *sizename = NULL;
2379 fontinfo *info = fs->selected;
2382 sizename = info->fontclass->scale_fontname
2383 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2384 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2385 sizename ? sizename : info->realname,
2386 FALSE, FALSE, 0, 0);
2390 #ifdef DRAW_TEXT_GDK
2391 if (dctx->type == DRAWTYPE_GDK) {
2392 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2393 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2394 fs->preview_width, fs->preview_height);
2395 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2398 #ifdef DRAW_TEXT_CAIRO
2399 if (dctx->type == DRAWTYPE_CAIRO) {
2400 cairo_set_source_rgb(dctx->u.cairo.cr,
2401 fs->preview_bg.red / 65535.0,
2402 fs->preview_bg.green / 65535.0,
2403 fs->preview_bg.blue / 65535.0);
2404 cairo_paint(dctx->u.cairo.cr);
2405 cairo_set_source_rgb(dctx->u.cairo.cr,
2406 fs->preview_fg.red / 65535.0,
2407 fs->preview_fg.green / 65535.0,
2408 fs->preview_fg.blue / 65535.0);
2414 * The pangram used here is rather carefully
2415 * constructed: it contains a sequence of very narrow
2416 * letters (`jil') and a pair of adjacent very wide
2419 * If the user selects a proportional font, it will be
2420 * coerced into fixed-width character cells when used
2421 * in the actual terminal window. We therefore display
2422 * it the same way in the preview pane, so as to show
2423 * it the way it will actually be displayed - and we
2424 * deliberately pick a pangram which will show the
2425 * resulting miskerning at its worst.
2427 * We aren't trying to sell people these fonts; we're
2428 * trying to let them make an informed choice. Better
2429 * that they find out the problems with using
2430 * proportional fonts in terminal windows here than
2431 * that they go to the effort of selecting their font
2432 * and _then_ realise it was a mistake.
2434 info->fontclass->draw_text(dctx, font,
2436 L"bankrupt jilted showmen quiz convex fogey",
2437 41, FALSE, FALSE, font->width);
2438 info->fontclass->draw_text(dctx, font,
2439 0, font->ascent + font->height,
2440 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2441 41, FALSE, FALSE, font->width);
2443 * The ordering of punctuation here is also selected
2444 * with some specific aims in mind. I put ` and '
2445 * together because some software (and people) still
2446 * use them as matched quotes no matter what Unicode
2447 * might say on the matter, so people can quickly
2448 * check whether they look silly in a candidate font.
2449 * The sequence #_@ is there to let people judge the
2450 * suitability of the underscore as an effectively
2451 * alphabetic character (since that's how it's often
2452 * used in practice, at least by programmers).
2454 info->fontclass->draw_text(dctx, font,
2455 0, font->ascent + font->height * 2,
2456 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2457 42, FALSE, FALSE, font->width);
2459 info->fontclass->destroy(font);
2465 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2467 unifont_drawctx dctx;
2470 #ifndef NO_BACKING_PIXMAPS
2471 target = fs->preview_pixmap;
2473 target = gtk_widget_get_window(fs->preview_area);
2475 if (!target) /* we may be called when we haven't created everything yet */
2478 dctx.type = DRAWTYPE_DEFAULT;
2479 #ifdef DRAW_TEXT_GDK
2480 if (dctx.type == DRAWTYPE_GDK) {
2481 dctx.u.gdk.target = target;
2482 dctx.u.gdk.gc = gdk_gc_new(target);
2485 #ifdef DRAW_TEXT_CAIRO
2486 if (dctx.type == DRAWTYPE_CAIRO) {
2487 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2488 dctx.u.cairo.cr = gdk_cairo_create(target);
2492 unifontsel_draw_preview_text_inner(&dctx, fs);
2494 #ifdef DRAW_TEXT_GDK
2495 if (dctx.type == DRAWTYPE_GDK) {
2496 gdk_gc_unref(dctx.u.gdk.gc);
2499 #ifdef DRAW_TEXT_CAIRO
2500 if (dctx.type == DRAWTYPE_CAIRO) {
2501 cairo_destroy(dctx.u.cairo.cr);
2505 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2509 static void unifontsel_select_font(unifontsel_internal *fs,
2510 fontinfo *info, int size, int leftlist,
2511 int size_is_explicit)
2516 GtkTreePath *treepath;
2519 fs->inhibit_response = TRUE;
2521 fs->selected = info;
2523 if (size_is_explicit)
2524 fs->intendedsize = size;
2526 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2529 * Find the index of this fontinfo in the selorder list.
2532 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2536 * Adjust the font selector flags and redo the font family
2537 * list box, if necessary.
2539 if (leftlist <= 0 &&
2540 (fs->filter_flags | info->flags) != fs->filter_flags) {
2541 fs->filter_flags |= info->flags;
2542 unifontsel_set_filter_buttons(fs);
2543 unifontsel_setup_familylist(fs);
2547 * Find the appropriate family name and select it in the list.
2549 assert(info->familyindex >= 0);
2550 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2551 gtk_tree_selection_select_path
2552 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2554 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2555 treepath, NULL, FALSE, 0.0, 0.0);
2556 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2559 gtk_tree_path_free(treepath);
2562 * Now set up the font style list.
2564 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2565 1, &minval, 2, &maxval, -1);
2567 unifontsel_setup_stylelist(fs, minval, maxval);
2570 * Find the appropriate style name and select it in the list.
2573 assert(info->styleindex >= 0);
2574 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2575 gtk_tree_selection_select_path
2576 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2578 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2579 treepath, NULL, FALSE, 0.0, 0.0);
2580 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2582 gtk_tree_path_free(treepath);
2585 * And set up the size list.
2587 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2588 1, &minval, 2, &maxval, -1);
2590 unifontsel_setup_sizelist(fs, minval, maxval);
2593 * Find the appropriate size, and select it in the list.
2596 assert(info->sizeindex >= 0);
2597 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2598 gtk_tree_selection_select_path
2599 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2601 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2602 treepath, NULL, FALSE, 0.0, 0.0);
2603 gtk_tree_path_free(treepath);
2607 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2608 if (unifontsel_default_sizes[j] == size) {
2609 treepath = gtk_tree_path_new_from_indices(j, -1);
2610 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2611 treepath, NULL, FALSE);
2612 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2613 treepath, NULL, FALSE, 0.0,
2615 gtk_tree_path_free(treepath);
2620 * And set up the font size text entry box.
2624 sprintf(sizetext, "%d", size);
2625 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2629 unifontsel_setup_sizelist(fs, 0, 0);
2630 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2634 * Grey out the font size edit box if we're not using a
2637 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2638 fs->selected->size == 0);
2639 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2641 unifontsel_draw_preview_text(fs);
2643 fs->inhibit_response = FALSE;
2646 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2648 unifontsel_internal *fs = (unifontsel_internal *)data;
2649 int newstate = gtk_toggle_button_get_active(tb);
2651 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2655 newflags = fs->filter_flags | flagbit;
2657 newflags = fs->filter_flags & ~flagbit;
2659 if (fs->filter_flags != newflags) {
2660 fs->filter_flags = newflags;
2661 unifontsel_setup_familylist(fs);
2665 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2666 const char *family, const char *charset,
2667 const char *style, const char *stylekey,
2668 int size, int flags,
2669 const struct unifont_vtable *fontclass)
2671 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2676 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2677 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2678 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2679 info = (fontinfo *)smalloc(totalsize);
2680 info->fontclass = fontclass;
2681 p = (char *)info + sizeof(fontinfo);
2683 strcpy(p, realfontname);
2690 info->family = NULL;
2696 info->charset = NULL;
2705 strcpy(p, stylekey);
2708 info->stylekey = NULL;
2709 assert(p - (char *)info <= totalsize);
2711 info->flags = flags;
2712 info->index = count234(fs->fonts_by_selorder);
2715 * It's just conceivable that a misbehaving font enumerator
2716 * might tell us about the same font real name more than once,
2717 * in which case we should silently drop the new one.
2719 if (add234(fs->fonts_by_realname, info) != info) {
2724 * However, we should never get a duplicate key in the
2725 * selorder tree, because the index field carefully
2726 * disambiguates otherwise identical records.
2728 add234(fs->fonts_by_selorder, info);
2731 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2734 fontinfo info2, *below, *above;
2738 * Copy the info structure. This doesn't copy its dynamic
2739 * string fields, but that's unimportant because all we're
2740 * going to do is to adjust the size field and use it in one
2744 info2.size = fs->intendedsize;
2747 * Search in the tree to find the fontinfo structure which
2748 * best approximates the size the user last requested.
2750 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2754 above = index234(fs->fonts_by_selorder, pos+1);
2757 * See if we've found it exactly, which is an easy special
2758 * case. If we have, it'll be in `below' and not `above',
2759 * because we did a REL234_LE rather than REL234_LT search.
2761 if (below && !fontinfo_selorder_compare(&info2, below))
2765 * Now we've either found two suitable fonts, one smaller and
2766 * one larger, or we're at one or other extreme end of the
2767 * scale. Find out which, by NULLing out either of below and
2768 * above if it differs from this one in any respect but size
2769 * (and the disambiguating index field). Bear in mind, also,
2770 * that either one might _already_ be NULL if we're at the
2771 * extreme ends of the font list.
2774 info2.size = below->size;
2775 info2.index = below->index;
2776 if (fontinfo_selorder_compare(&info2, below))
2780 info2.size = above->size;
2781 info2.index = above->index;
2782 if (fontinfo_selorder_compare(&info2, above))
2787 * Now return whichever of above and below is non-NULL, if
2788 * that's unambiguous.
2796 * And now we really do have to make a choice about whether to
2797 * round up or down. We'll do it by rounding to nearest,
2798 * breaking ties by rounding up.
2800 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2806 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2808 unifontsel_internal *fs = (unifontsel_internal *)data;
2809 GtkTreeModel *treemodel;
2810 GtkTreeIter treeiter;
2814 if (fs->inhibit_response) /* we made this change ourselves */
2817 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2820 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2821 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2822 info = update_for_intended_size(fs, info);
2824 return; /* _shouldn't_ happen unless font list is completely funted */
2826 fs->selsize = fs->intendedsize; /* font is scalable */
2827 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2831 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2833 unifontsel_internal *fs = (unifontsel_internal *)data;
2834 GtkTreeModel *treemodel;
2835 GtkTreeIter treeiter;
2839 if (fs->inhibit_response) /* we made this change ourselves */
2842 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2845 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2847 return; /* somehow a charset heading got clicked */
2848 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2849 info = update_for_intended_size(fs, info);
2851 return; /* _shouldn't_ happen unless font list is completely funted */
2853 fs->selsize = fs->intendedsize; /* font is scalable */
2854 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2858 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2860 unifontsel_internal *fs = (unifontsel_internal *)data;
2861 GtkTreeModel *treemodel;
2862 GtkTreeIter treeiter;
2866 if (fs->inhibit_response) /* we made this change ourselves */
2869 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2872 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2873 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2874 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2877 static void size_entry_changed(GtkEditable *ed, gpointer data)
2879 unifontsel_internal *fs = (unifontsel_internal *)data;
2883 if (fs->inhibit_response) /* we made this change ourselves */
2886 text = gtk_entry_get_text(GTK_ENTRY(ed));
2890 assert(fs->selected->size == 0);
2891 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2895 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2896 GtkTreeViewColumn *column, gpointer data)
2898 unifontsel_internal *fs = (unifontsel_internal *)data;
2900 int minval, newsize;
2901 fontinfo *info, *newinfo;
2904 if (fs->inhibit_response) /* we made this change ourselves */
2907 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2908 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2909 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2912 struct fontinfo_realname_find f;
2914 newname = info->fontclass->canonify_fontname
2915 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2917 f.realname = newname;
2919 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2923 return; /* font name not in our index */
2924 if (newinfo == info)
2925 return; /* didn't change under canonification => not an alias */
2926 unifontsel_select_font(fs, newinfo,
2927 newinfo->size ? newinfo->size : newsize,
2932 #if GTK_CHECK_VERSION(3,0,0)
2933 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
2935 unifontsel_internal *fs = (unifontsel_internal *)data;
2936 unifont_drawctx dctx;
2938 dctx.type = DRAWTYPE_CAIRO;
2939 dctx.u.cairo.widget = widget;
2940 dctx.u.cairo.cr = cr;
2941 unifontsel_draw_preview_text_inner(&dctx, fs);
2946 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2949 unifontsel_internal *fs = (unifontsel_internal *)data;
2951 #ifndef NO_BACKING_PIXMAPS
2952 if (fs->preview_pixmap) {
2953 gdk_draw_pixmap(gtk_widget_get_window(widget),
2954 (gtk_widget_get_style(widget)->fg_gc
2955 [gtk_widget_get_state(widget)]),
2957 event->area.x, event->area.y,
2958 event->area.x, event->area.y,
2959 event->area.width, event->area.height);
2962 unifontsel_draw_preview_text(fs);
2969 static gint unifontsel_configure_area(GtkWidget *widget,
2970 GdkEventConfigure *event, gpointer data)
2972 #ifndef NO_BACKING_PIXMAPS
2973 unifontsel_internal *fs = (unifontsel_internal *)data;
2974 int ox, oy, nx, ny, x, y;
2977 * Enlarge the pixmap, but never shrink it.
2979 ox = fs->preview_width;
2980 oy = fs->preview_height;
2983 if (x > ox || y > oy) {
2984 if (fs->preview_pixmap)
2985 gdk_pixmap_unref(fs->preview_pixmap);
2987 nx = (x > ox ? x : ox);
2988 ny = (y > oy ? y : oy);
2989 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2991 fs->preview_width = nx;
2992 fs->preview_height = ny;
2994 unifontsel_draw_preview_text(fs);
2998 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
3003 unifontsel *unifontsel_new(const char *wintitle)
3005 unifontsel_internal *fs = snew(unifontsel_internal);
3006 GtkWidget *table, *label, *w, *ww, *scroll;
3007 GtkListStore *model;
3008 GtkTreeViewColumn *column;
3009 int lists_height, preview_height, font_width, style_width, size_width;
3012 fs->inhibit_response = FALSE;
3013 fs->selected = NULL;
3019 * Invent some magic size constants.
3021 get_label_text_dimensions("Quite Long Font Name (Foundry)",
3024 lists_height = 14 * height;
3025 preview_height = 5 * height;
3027 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
3028 style_width = width;
3030 get_label_text_dimensions("48000", &width, &height);
3035 * Create the dialog box and initialise the user-visible
3036 * fields in the returned structure.
3038 fs->u.user_data = NULL;
3039 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3040 gtk_window_set_title(fs->u.window, wintitle);
3041 fs->u.cancel_button = gtk_dialog_add_button
3042 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3043 fs->u.ok_button = gtk_dialog_add_button
3044 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3045 gtk_widget_grab_default(fs->u.ok_button);
3048 * Now set up the internal fields, including in particular all
3049 * the controls that actually allow the user to select fonts.
3051 #if GTK_CHECK_VERSION(3,0,0)
3052 table = gtk_grid_new();
3053 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3055 table = gtk_table_new(8, 3, FALSE);
3056 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3058 gtk_widget_show(table);
3059 #if GTK_CHECK_VERSION(2,4,0)
3060 /* GtkAlignment seems to be the simplest way to put padding round things */
3061 w = gtk_alignment_new(0, 0, 1, 1);
3062 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3063 gtk_container_add(GTK_CONTAINER(w), table);
3068 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3069 (GTK_DIALOG(fs->u.window))),
3072 label = gtk_label_new_with_mnemonic("_Font:");
3073 gtk_widget_show(label);
3074 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3075 #if GTK_CHECK_VERSION(3,0,0)
3076 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3077 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3079 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3083 * The Font list box displays only a string, but additionally
3084 * stores two integers which give the limits within the
3085 * tree234 of the font entries covered by this list entry.
3087 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3088 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3089 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3090 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3092 column = gtk_tree_view_column_new_with_attributes
3093 ("Font", gtk_cell_renderer_text_new(),
3094 "text", 0, (char *)NULL);
3095 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3096 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3097 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3098 "changed", G_CALLBACK(family_changed), fs);
3099 g_signal_connect(G_OBJECT(w), "row-activated",
3100 G_CALLBACK(alias_resolve), fs);
3102 scroll = gtk_scrolled_window_new(NULL, NULL);
3103 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3105 gtk_container_add(GTK_CONTAINER(scroll), w);
3106 gtk_widget_show(scroll);
3107 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3108 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3109 gtk_widget_set_size_request(scroll, font_width, lists_height);
3110 #if GTK_CHECK_VERSION(3,0,0)
3111 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3112 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3114 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3115 GTK_EXPAND | GTK_FILL, 0, 0);
3117 fs->family_model = model;
3118 fs->family_list = w;
3120 label = gtk_label_new_with_mnemonic("_Style:");
3121 gtk_widget_show(label);
3122 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3123 #if GTK_CHECK_VERSION(3,0,0)
3124 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3125 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3127 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3131 * The Style list box can contain insensitive elements
3132 * (character set headings for server-side fonts), so we add
3133 * an extra column to the list store to hold that information.
3135 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3137 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3138 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3139 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3141 column = gtk_tree_view_column_new_with_attributes
3142 ("Style", gtk_cell_renderer_text_new(),
3143 "text", 0, "sensitive", 3, (char *)NULL);
3144 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3145 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3146 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3147 "changed", G_CALLBACK(style_changed), fs);
3149 scroll = gtk_scrolled_window_new(NULL, NULL);
3150 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3152 gtk_container_add(GTK_CONTAINER(scroll), w);
3153 gtk_widget_show(scroll);
3154 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3155 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3156 gtk_widget_set_size_request(scroll, style_width, lists_height);
3157 #if GTK_CHECK_VERSION(3,0,0)
3158 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3159 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3161 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3162 GTK_EXPAND | GTK_FILL, 0, 0);
3164 fs->style_model = model;
3167 label = gtk_label_new_with_mnemonic("Si_ze:");
3168 gtk_widget_show(label);
3169 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3170 #if GTK_CHECK_VERSION(3,0,0)
3171 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3172 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3174 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3178 * The Size label attaches primarily to a text input box so
3179 * that the user can select a size of their choice. The list
3180 * of available sizes is secondary.
3182 fs->size_entry = w = gtk_entry_new();
3183 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3184 gtk_widget_set_size_request(w, size_width, -1);
3186 #if GTK_CHECK_VERSION(3,0,0)
3187 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3188 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3190 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3192 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3195 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3196 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3197 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3199 column = gtk_tree_view_column_new_with_attributes
3200 ("Size", gtk_cell_renderer_text_new(),
3201 "text", 0, (char *)NULL);
3202 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3203 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3204 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3205 "changed", G_CALLBACK(size_changed), fs);
3207 scroll = gtk_scrolled_window_new(NULL, NULL);
3208 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3210 gtk_container_add(GTK_CONTAINER(scroll), w);
3211 gtk_widget_show(scroll);
3212 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3213 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3214 #if GTK_CHECK_VERSION(3,0,0)
3215 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3216 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3218 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3219 GTK_EXPAND | GTK_FILL, 0, 0);
3221 fs->size_model = model;
3227 fs->preview_area = gtk_drawing_area_new();
3228 #ifndef NO_BACKING_PIXMAPS
3229 fs->preview_pixmap = NULL;
3231 fs->preview_width = 0;
3232 fs->preview_height = 0;
3233 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3234 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3235 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3236 #if !GTK_CHECK_VERSION(3,0,0)
3237 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3239 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3242 #if GTK_CHECK_VERSION(3,0,0)
3243 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3244 G_CALLBACK(unifontsel_draw_area), fs);
3246 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3247 G_CALLBACK(unifontsel_expose_area), fs);
3249 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3250 G_CALLBACK(unifontsel_configure_area), fs);
3251 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3252 gtk_widget_show(fs->preview_area);
3253 ww = fs->preview_area;
3254 w = gtk_frame_new(NULL);
3255 gtk_container_add(GTK_CONTAINER(w), ww);
3257 #if GTK_CHECK_VERSION(2,4,0)
3259 /* GtkAlignment seems to be the simplest way to put padding round things */
3260 w = gtk_alignment_new(0, 0, 1, 1);
3261 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3262 gtk_container_add(GTK_CONTAINER(w), ww);
3266 w = gtk_frame_new("Preview of font");
3267 gtk_container_add(GTK_CONTAINER(w), ww);
3269 #if GTK_CHECK_VERSION(3,0,0)
3270 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3271 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3273 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3274 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3278 * We only provide the checkboxes for client- and server-side
3279 * fonts if we have the X11 back end available, because that's the
3280 * only situation in which more than one class of font is
3283 fs->n_filter_buttons = 0;
3284 #ifndef NOT_X_WINDOWS
3285 w = gtk_check_button_new_with_label("Show client-side fonts");
3286 g_object_set_data(G_OBJECT(w), "user-data",
3287 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3288 g_signal_connect(G_OBJECT(w), "toggled",
3289 G_CALLBACK(unifontsel_button_toggled), fs);
3291 fs->filter_buttons[fs->n_filter_buttons++] = w;
3292 #if GTK_CHECK_VERSION(3,0,0)
3293 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3294 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3296 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3298 w = gtk_check_button_new_with_label("Show server-side fonts");
3299 g_object_set_data(G_OBJECT(w), "user-data",
3300 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3301 g_signal_connect(G_OBJECT(w), "toggled",
3302 G_CALLBACK(unifontsel_button_toggled), fs);
3304 fs->filter_buttons[fs->n_filter_buttons++] = w;
3305 #if GTK_CHECK_VERSION(3,0,0)
3306 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3307 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3309 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3311 w = gtk_check_button_new_with_label("Show server-side font aliases");
3312 g_object_set_data(G_OBJECT(w), "user-data",
3313 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3314 g_signal_connect(G_OBJECT(w), "toggled",
3315 G_CALLBACK(unifontsel_button_toggled), fs);
3317 fs->filter_buttons[fs->n_filter_buttons++] = w;
3318 #if GTK_CHECK_VERSION(3,0,0)
3319 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3320 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3322 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3324 #endif /* NOT_X_WINDOWS */
3325 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3326 g_object_set_data(G_OBJECT(w), "user-data",
3327 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3328 g_signal_connect(G_OBJECT(w), "toggled",
3329 G_CALLBACK(unifontsel_button_toggled), fs);
3331 fs->filter_buttons[fs->n_filter_buttons++] = w;
3332 #if GTK_CHECK_VERSION(3,0,0)
3333 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3334 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3336 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3339 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3340 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3341 FONTFLAG_SERVERALIAS;
3342 unifontsel_set_filter_buttons(fs);
3345 * Go and find all the font names, and set up our master font
3348 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3349 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3350 for (i = 0; i < lenof(unifont_types); i++)
3351 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3352 unifontsel_add_entry, fs);
3355 * And set up the initial font names list.
3357 unifontsel_setup_familylist(fs);
3359 fs->selsize = fs->intendedsize = 13; /* random default */
3360 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3362 return (unifontsel *)fs;
3365 void unifontsel_destroy(unifontsel *fontsel)
3367 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3370 #ifndef NO_BACKING_PIXMAPS
3371 if (fs->preview_pixmap)
3372 gdk_pixmap_unref(fs->preview_pixmap);
3375 freetree234(fs->fonts_by_selorder);
3376 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3378 freetree234(fs->fonts_by_realname);
3380 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3384 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3386 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3387 int i, start, end, size, flags;
3388 const char *fontname2 = NULL;
3392 * Provide a default if given an empty or null font name.
3394 if (!fontname || !*fontname)
3395 fontname = "server:fixed";
3398 * Call the canonify_fontname function.
3400 fontname = unifont_do_prefix(fontname, &start, &end);
3401 for (i = start; i < end; i++) {
3402 fontname2 = unifont_types[i]->canonify_fontname
3403 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3408 return; /* font name not recognised */
3411 * Now look up the canonified font name in our index.
3414 struct fontinfo_realname_find f;
3415 f.realname = fontname2;
3417 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3421 * If we've found the font, and its size field is either
3422 * correct or zero (the latter indicating a scalable font),
3423 * then we're done. Otherwise, try looking up the original
3424 * font name instead.
3426 if (!info || (info->size != size && info->size != 0)) {
3427 struct fontinfo_realname_find f;
3428 f.realname = fontname;
3431 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3432 if (!info || info->size != size)
3433 return; /* font name not in our index */
3437 * Now we've got a fontinfo structure and a font size, so we
3438 * know everything we need to fill in all the fields in the
3441 unifontsel_select_font(fs, info, size, 0, TRUE);
3444 char *unifontsel_get_name(unifontsel *fontsel)
3446 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3452 if (fs->selected->size == 0) {
3453 name = fs->selected->fontclass->scale_fontname
3454 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3456 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3463 return dupcat(fs->selected->fontclass->prefix, ":",
3464 fs->selected->realname, NULL);
3467 #endif /* GTK_CHECK_VERSION(2,0,0) */