2 * Unified font management for GTK.
4 * PuTTY is willing to use both old-style X server-side bitmap
5 * fonts _and_ GTK2/Pango client-side fonts. This requires us to
6 * do a bit of work to wrap the two wildly different APIs into
7 * forms the rest of the code can switch between seamlessly, and
8 * also requires a custom font selector capable of handling both
16 #if !GTK_CHECK_VERSION(3,0,0)
17 #include <gdk/gdkkeysyms.h>
22 #include <X11/Xutil.h>
23 #include <X11/Xatom.h>
28 #include "gtkcompat.h"
34 * - it would be nice to have a display of the current font name,
35 * and in particular whether it's client- or server-side,
36 * during the progress of the font selector.
38 * - it would be nice if we could move the processing of
39 * underline and VT100 double width into this module, so that
40 * instead of using the ghastly pixmap-stretching technique
41 * everywhere we could tell the Pango backend to scale its
42 * fonts to double size properly and at full resolution.
43 * However, this requires me to learn how to make Pango stretch
44 * text to an arbitrary aspect ratio (for double-width only
45 * text, which perversely is harder than DW+DH), and right now
46 * I haven't the energy.
49 #if !GLIB_CHECK_VERSION(1,3,7)
50 #define g_ascii_strcasecmp g_strcasecmp
51 #define g_ascii_strncasecmp g_strncasecmp
55 * Ad-hoc vtable mechanism to allow font structures to be
58 * Any instance of `unifont' used in the vtable functions will
59 * actually be the first element of a larger structure containing
60 * data specific to the subtype. This is permitted by the ISO C
61 * provision that one may safely cast between a pointer to a
62 * structure and a pointer to its first element.
65 #define FONTFLAG_CLIENTSIDE 0x0001
66 #define FONTFLAG_SERVERSIDE 0x0002
67 #define FONTFLAG_SERVERALIAS 0x0004
68 #define FONTFLAG_NONMONOSPACED 0x0008
70 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
72 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
73 const char *family, const char *charset,
74 const char *style, const char *stylekey,
76 const struct unifont_vtable *fontclass);
78 struct unifont_vtable {
80 * `Methods' of the `class'.
82 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
83 int shadowoffset, int shadowalways);
84 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
85 int bold, int shadowoffset, int shadowalways);
86 void (*destroy)(unifont *font);
87 int (*has_glyph)(unifont *font, wchar_t glyph);
88 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
89 int x, int y, const wchar_t *string, int len,
90 int wide, int bold, int cellwidth);
91 void (*enum_fonts)(GtkWidget *widget,
92 fontsel_add_entry callback, void *callback_ctx);
93 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
94 int *flags, int resolve_aliases);
95 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
98 * `Static data members' of the `class'.
103 #ifndef NOT_X_WINDOWS
105 /* ----------------------------------------------------------------------
106 * X11 font implementation, directly using Xlib calls. Conditioned out
107 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
108 * back end other than X).
111 static int x11font_has_glyph(unifont *font, wchar_t glyph);
112 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
113 int x, int y, const wchar_t *string, int len,
114 int wide, int bold, int cellwidth);
115 static unifont *x11font_create(GtkWidget *widget, const char *name,
117 int shadowoffset, int shadowalways);
118 static void x11font_destroy(unifont *font);
119 static void x11font_enum_fonts(GtkWidget *widget,
120 fontsel_add_entry callback, void *callback_ctx);
121 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
122 int *size, int *flags,
123 int resolve_aliases);
124 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
127 #ifdef DRAW_TEXT_CAIRO
128 struct cairo_cached_glyph {
129 cairo_surface_t *surface;
130 unsigned char *bitmap;
135 * Structure storing a single physical XFontStruct, plus associated
138 typedef struct x11font_individual {
139 /* The XFontStruct itself. */
143 * The `allocated' flag indicates whether we've tried to fetch
144 * this subfont already (thus distinguishing xfs==NULL because we
145 * haven't tried yet from xfs==NULL because we tried and failed,
146 * so that we don't keep trying and failing subsequently).
150 #ifdef DRAW_TEXT_CAIRO
152 * A cache of glyph bitmaps downloaded from the X server when
153 * we're in Cairo rendering mode. If glyphcache itself is
154 * non-NULL, then entries in [0,nglyphs) are expected to be
155 * initialised to either NULL or a bitmap pointer.
157 struct cairo_cached_glyph *glyphcache;
161 * X server paraphernalia for actually downloading the glyphs.
165 int pixwidth, pixheight, pixoriginx, pixoriginy;
168 * Paraphernalia for loading the resulting bitmaps into Cairo.
170 int rowsize, allsize, indexflip;
173 } x11font_individual;
178 * Individual physical X fonts. We store a number of these, for
179 * automatically guessed bold and wide variants.
181 x11font_individual fonts[4];
183 * `sixteen_bit' is true iff the font object is indexed by
184 * values larger than a byte. That is, this flag tells us
185 * whether we use XDrawString or XDrawString16, etc.
189 * `variable' is true iff the font is non-fixed-pitch. This
190 * enables some code which takes greater care over character
191 * positioning during text drawing.
195 * real_charset is the charset used when translating text into the
196 * font's internal encoding inside draw_text(). This need not be
197 * the same as the public_charset provided to the client; for
198 * example, public_charset might be CS_ISO8859_1 while
199 * real_charset is CS_ISO8859_1_X11.
203 * Data passed in to unifont_create().
205 int wide, bold, shadowoffset, shadowalways;
208 static const struct unifont_vtable x11font_vtable = {
210 NULL, /* no fallback fonts in X11 */
215 x11font_canonify_fontname,
216 x11font_scale_fontname,
220 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
222 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
223 Atom fontprop = XInternAtom(disp, "FONT", False);
225 if (XGetFontProperty(xfs, fontprop, &ret)) {
226 char *name = XGetAtomName(disp, (Atom)ret);
227 if (name && name[0] == '-') {
228 const char *strings[13];
229 char *dupname, *extrafree = NULL, *ret;
233 p = q = dupname = dupstr(name); /* skip initial minus */
236 while (*p && nstr < lenof(strings)) {
239 strings[nstr++] = p+1;
244 if (nstr < lenof(strings)) {
246 return NULL; /* XLFD was malformed */
253 /* 4 is `wideness', which obviously may have changed. */
254 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
255 strings[4] = strings[5] = "*";
256 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
259 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
260 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
261 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
262 "-", strings[ 9], "-", strings[10], "-", strings[11],
263 "-", strings[12], NULL);
273 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
279 return XTextWidth16(xfs, &space, 1);
281 return XTextWidth(xfs, "0", 1);
285 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
290 * Not to be confused with x11font_has_glyph, which is a method of
291 * the x11font 'class' and hence takes a unifont as argument. This
292 * is the low-level function which grubs about in an actual
293 * XFontStruct to see if a given glyph exists.
295 * We must do this ourselves rather than letting Xlib's
296 * XTextExtents16 do the job, because XTextExtents will helpfully
297 * substitute the font's default_char for any missing glyph and
298 * not tell us it did so, which precisely won't help us find out
299 * which glyphs _are_ missing.
301 * The man page for XQueryFont is rather confusing about how the
302 * per_char array in the XFontStruct is laid out, because it gives
303 * formulae for determining the two-byte X character code _from_
304 * an index into the per_char array. Going the other way, it's
307 * The valid character codes have byte1 between min_byte1 and
308 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
309 * max_char_or_byte2 inclusive. This gives a rectangle of size
310 * (max_byte2-min_byte1+1) by
311 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
312 * rectangle encoded in the per_char array. Hence, given a
313 * character code which is valid in the sense that it falls
314 * somewhere in that rectangle, its index in per_char is given by
317 * x = byte2 - min_char_or_byte2
318 * y = byte1 - min_byte1
319 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
321 * If min_byte1 and min_byte2 are both zero, that's a special case
322 * which can be treated as if min_byte2 was 1 instead, i.e. the
323 * per_char array just runs from min_char_or_byte2 to
324 * max_char_or_byte2 inclusive, and byte1 should always be zero.
327 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
330 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
331 index = byte2 - xfs->min_char_or_byte2;
333 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
335 index = ((byte2 - xfs->min_char_or_byte2) +
336 ((byte1 - xfs->min_byte1) *
337 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
340 if (!xfs->per_char) /* per_char NULL => everything in range exists */
343 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
344 xfs->per_char[index].width > 0);
347 static unifont *x11font_create(GtkWidget *widget, const char *name,
349 int shadowoffset, int shadowalways)
351 struct x11font *xfont;
353 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
354 Atom charset_registry, charset_encoding, spacing;
355 unsigned long registry_ret, encoding_ret, spacing_ret;
356 int pubcs, realcs, sixteen_bit, variable;
359 xfs = XLoadQueryFont(disp, name);
363 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
364 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
366 pubcs = realcs = CS_NONE;
370 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
371 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
373 reg = XGetAtomName(disp, (Atom)registry_ret);
374 enc = XGetAtomName(disp, (Atom)encoding_ret);
376 char *encoding = dupcat(reg, "-", enc, NULL);
377 pubcs = realcs = charset_from_xenc(encoding);
380 * iso10646-1 is the only wide font encoding we
381 * support. In this case, we expect clients to give us
382 * UTF-8, which this module must internally convert
383 * into 16-bit Unicode.
385 if (!strcasecmp(encoding, "iso10646-1")) {
387 pubcs = realcs = CS_UTF8;
391 * Hack for X line-drawing characters: if the primary font
392 * is encoded as ISO-8859-1, and has valid glyphs in the
393 * low character positions, it is assumed that those
394 * glyphs are the VT100 line-drawing character set.
396 if (pubcs == CS_ISO8859_1) {
398 for (ch = 1; ch < 32; ch++)
399 if (!x11_font_has_glyph(xfs, 0, ch))
402 realcs = CS_ISO8859_1_X11;
409 spacing = XInternAtom(disp, "SPACING", False);
410 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
412 spc = XGetAtomName(disp, (Atom)spacing_ret);
414 if (spc && strchr("CcMm", spc[0]))
418 xfont = snew(struct x11font);
419 xfont->u.vt = &x11font_vtable;
420 xfont->u.width = x11_font_width(xfs, sixteen_bit);
421 xfont->u.ascent = xfs->ascent;
422 xfont->u.descent = xfs->descent;
423 xfont->u.height = xfont->u.ascent + xfont->u.descent;
424 xfont->u.public_charset = pubcs;
425 xfont->u.want_fallback = TRUE;
427 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
428 #elif defined DRAW_TEXT_CAIRO
429 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
431 #error No drawtype available at all
433 xfont->real_charset = realcs;
434 xfont->sixteen_bit = sixteen_bit;
435 xfont->variable = variable;
438 xfont->shadowoffset = shadowoffset;
439 xfont->shadowalways = shadowalways;
441 for (i = 0; i < lenof(xfont->fonts); i++) {
442 xfont->fonts[i].xfs = NULL;
443 xfont->fonts[i].allocated = FALSE;
444 #ifdef DRAW_TEXT_CAIRO
445 xfont->fonts[i].glyphcache = NULL;
446 xfont->fonts[i].nglyphs = 0;
447 xfont->fonts[i].pixmap = None;
448 xfont->fonts[i].gc = None;
451 xfont->fonts[0].xfs = xfs;
452 xfont->fonts[0].allocated = TRUE;
454 return (unifont *)xfont;
457 static void x11font_destroy(unifont *font)
459 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
460 struct x11font *xfont = (struct x11font *)font;
463 for (i = 0; i < lenof(xfont->fonts); i++) {
464 if (xfont->fonts[i].xfs)
465 XFreeFont(disp, xfont->fonts[i].xfs);
466 #ifdef DRAW_TEXT_CAIRO
467 if (xfont->fonts[i].gc != None)
468 XFreeGC(disp, xfont->fonts[i].gc);
469 if (xfont->fonts[i].pixmap != None)
470 XFreePixmap(disp, xfont->fonts[i].pixmap);
471 if (xfont->fonts[i].glyphcache) {
473 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
474 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
475 sfree(xfont->fonts[i].glyphcache[j].bitmap);
477 sfree(xfont->fonts[i].glyphcache);
484 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
486 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
487 char *derived_name = x11_guess_derived_font_name
488 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
489 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
490 xfont->fonts[sfid].allocated = TRUE;
492 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
495 static int x11font_has_glyph(unifont *font, wchar_t glyph)
497 struct x11font *xfont = (struct x11font *)font;
499 if (xfont->sixteen_bit) {
501 * This X font has 16-bit character indices, which means
502 * we can directly use our Unicode input value.
504 return x11_font_has_glyph(xfont->fonts[0].xfs,
505 glyph >> 8, glyph & 0xFF);
508 * This X font has 8-bit indices, so we must convert to the
509 * appropriate character set.
512 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
513 sbstring, 2, "", NULL, NULL);
514 if (sblen == 0 || !sbstring[0])
515 return FALSE; /* not even in the charset */
517 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
518 (unsigned char)sbstring[0]);
522 #if !GTK_CHECK_VERSION(2,0,0)
523 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
526 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
527 const void *vstring, int start, int length)
529 const XChar2b *string = (const XChar2b *)vstring;
530 return XTextWidth16(xfi->xfs, string+start, length);
533 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
534 const void *vstring, int start, int length)
536 const char *string = (const char *)vstring;
537 return XTextWidth(xfi->xfs, string+start, length);
541 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
543 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
544 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
547 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
548 x11font_individual *xfi, int x, int y,
549 const void *vstring, int start, int length)
551 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
552 const XChar2b *string = (const XChar2b *)vstring;
553 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
554 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
557 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
558 x11font_individual *xfi, int x, int y,
559 const void *vstring, int start, int length)
561 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
562 const char *string = (const char *)vstring;
563 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
564 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
568 #ifdef DRAW_TEXT_CAIRO
569 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
571 if (xfi->pixmap == None) {
572 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
574 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
575 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
578 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
580 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
581 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
582 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
584 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
586 xfi->allsize = xfi->rowsize * xfi->pixheight;
590 * Test host endianness and use it to set xfi->indexflip,
591 * which is XORed into our left-shift counts in order to
592 * implement the CAIRO_FORMAT_A1 specification, in which
593 * each bitmap byte is oriented LSB-first on little-endian
594 * platforms and MSB-first on big-endian ones.
596 * This is the same technique Cairo itself uses to test
597 * endianness, so hopefully it'll work in any situation
598 * where Cairo is usable at all.
600 static const int endianness_test = 1;
601 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
604 xfi->pixmap = XCreatePixmap
606 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
607 xfi->pixwidth, xfi->pixheight, 1);
608 gcvals.foreground = WhitePixel(disp, widgetscr);
609 gcvals.background = BlackPixel(disp, widgetscr);
610 gcvals.font = xfi->xfs->fid;
611 xfi->gc = XCreateGC(disp, xfi->pixmap,
612 GCForeground | GCBackground | GCFont, &gcvals);
616 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
620 unsigned char *bitmap;
621 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
623 bitmap = snewn(xfi->allsize, unsigned char);
624 memset(bitmap, 0, xfi->allsize);
626 image = XGetImage(disp, xfi->pixmap, 0, 0,
627 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
628 for (y = 0; y < xfi->pixheight; y++) {
629 for (x = 0; x < xfi->pixwidth; x++) {
630 unsigned long pixel = XGetPixel(image, x, y);
632 int byteindex = y * xfi->rowsize + x/8;
633 int bitindex = (x & 7) ^ xfi->indexflip;
634 bitmap[byteindex] |= 1U << bitindex;
638 XDestroyImage(image);
640 if (xfi->nglyphs <= glyphindex) {
641 /* Round up to the next multiple of 256 on the general
642 * principle that Unicode characters come in contiguous blocks
643 * often used together */
644 int old_nglyphs = xfi->nglyphs;
645 xfi->nglyphs = (glyphindex + 0xFF) & ~0xFF;
646 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
647 struct cairo_cached_glyph);
649 while (old_nglyphs < xfi->nglyphs) {
650 xfi->glyphcache[old_nglyphs].surface = NULL;
651 xfi->glyphcache[old_nglyphs].bitmap = NULL;
655 xfi->glyphcache[glyphindex].bitmap = bitmap;
656 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
657 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
660 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
661 x11font_individual *xfi, int x, int y,
664 if (xfi->glyphcache[glyphindex].surface) {
665 cairo_mask_surface(ctx->u.cairo.cr,
666 xfi->glyphcache[glyphindex].surface,
667 x - xfi->pixoriginx, y - xfi->pixoriginy);
671 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
672 x11font_individual *xfi, int x, int y,
673 const void *vstring, int start, int length)
675 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
676 const XChar2b *string = (const XChar2b *)vstring + start;
678 for (i = 0; i < length; i++) {
679 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
680 int glyphindex = (256 * (unsigned char)string[i].byte1 +
681 (unsigned char)string[i].byte2);
682 if (glyphindex >= xfi->nglyphs ||
683 !xfi->glyphcache[glyphindex].surface) {
684 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
685 xfi->pixoriginx, xfi->pixoriginy,
687 x11font_cairo_cache_glyph(xfi, glyphindex);
689 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
690 x += XTextWidth16(xfi->xfs, string+i, 1);
695 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
696 x11font_individual *xfi, int x, int y,
697 const void *vstring, int start, int length)
699 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
700 const char *string = (const char *)vstring + start;
702 for (i = 0; i < length; i++) {
703 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
704 int glyphindex = (unsigned char)string[i];
705 if (glyphindex >= xfi->nglyphs ||
706 !xfi->glyphcache[glyphindex].surface) {
707 XDrawImageString(disp, xfi->pixmap, xfi->gc,
708 xfi->pixoriginx, xfi->pixoriginy,
710 x11font_cairo_cache_glyph(xfi, glyphindex);
712 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
713 x += XTextWidth(xfi->xfs, string+i, 1);
717 #endif /* DRAW_TEXT_CAIRO */
719 struct x11font_drawfuncs {
720 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
721 const void *vstring, int start, int length);
722 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
723 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
724 const void *vstring, int start, int length);
728 * This array has two entries per compiled-in drawtype; of each pair,
729 * the first is for an 8-bit font and the second for 16-bit.
731 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
746 #ifdef DRAW_TEXT_CAIRO
751 x11font_cairo_draw_8,
753 /* [3] cairo, 16-bit */
757 x11font_cairo_draw_16,
762 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
763 unifont_drawctx *ctx,
764 x11font_individual *xfi, int x, int y,
765 const void *string, int nchars,
767 int fontvariable, int cellwidth)
769 int start = 0, step, nsteps, centre;
773 * In a variable-pitch font, we draw one character at a
774 * time, and centre it in the character cell.
781 * In a fixed-pitch font, we can draw the whole lot in one go.
788 dfns->setup(ctx, xfi);
790 while (nsteps-- > 0) {
793 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
795 dfns->draw(ctx, xfi, X, y, string, start, step);
797 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
804 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
805 int x, int y, const wchar_t *string, int len,
806 int wide, int bold, int cellwidth)
808 struct x11font *xfont = (struct x11font *)font;
810 int shadowoffset = 0;
811 int mult = (wide ? 2 : 1);
812 int index = 2 * (int)ctx->type;
818 * Decide which subfont we're using, and whether we have to
821 if (xfont->shadowalways && bold) {
822 shadowoffset = xfont->shadowoffset;
825 sfid = 2 * wide + bold;
826 if (!xfont->fonts[sfid].allocated)
827 x11_alloc_subfont(xfont, sfid);
828 if (bold && !xfont->fonts[sfid].xfs) {
830 shadowoffset = xfont->shadowoffset;
831 sfid = 2 * wide + bold;
832 if (!xfont->fonts[sfid].allocated)
833 x11_alloc_subfont(xfont, sfid);
836 if (!xfont->fonts[sfid].xfs)
837 return; /* we've tried our best, but no luck */
839 if (xfont->sixteen_bit) {
841 * This X font has 16-bit character indices, which means
842 * we can directly use our Unicode input string.
847 xcs = snewn(len, XChar2b);
848 for (i = 0; i < len; i++) {
849 xcs[i].byte1 = string[i] >> 8;
850 xcs[i].byte2 = string[i];
853 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
854 &xfont->fonts[sfid], x, y,
855 xcs, len, shadowoffset,
856 xfont->variable, cellwidth * mult);
860 * This X font has 8-bit indices, so we must convert to the
861 * appropriate character set.
863 char *sbstring = snewn(len+1, char);
864 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
865 sbstring, len+1, ".", NULL, NULL);
866 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
867 &xfont->fonts[sfid], x, y,
868 sbstring, sblen, shadowoffset,
869 xfont->variable, cellwidth * mult);
874 static void x11font_enum_fonts(GtkWidget *widget,
875 fontsel_add_entry callback, void *callback_ctx)
877 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
880 int nnames, i, max, tmpsize;
884 fontnames = XListFonts(disp, "*", max, &nnames);
886 XFreeFontNames(fontnames);
894 for (i = 0; i < nnames; i++) {
895 if (fontnames[i][0] == '-') {
897 * Dismember an XLFD and convert it into the format
898 * we'll be using in the font selector.
900 char *components[14];
901 char *p, *font, *style, *stylekey, *charset;
902 int j, weightkey, slantkey, setwidthkey;
903 int thistmpsize, fontsize, flags;
905 thistmpsize = 4 * strlen(fontnames[i]) + 256;
906 if (tmpsize < thistmpsize) {
907 tmpsize = thistmpsize;
908 tmp = sresize(tmp, tmpsize, char);
910 strcpy(tmp, fontnames[i]);
913 for (j = 0; j < 14; j++) {
917 while (*p && *p != '-')
923 * Font name is made up of fields 0 and 1, in reverse
924 * order with parentheses. (This is what the GTK 1.2 X
925 * font selector does, and it seems to come out
926 * looking reasonably sensible.)
929 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
932 * Charset is made up of fields 12 and 13.
935 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
938 * Style is a mixture of quite a lot of the fields,
939 * with some strange formatting.
942 p += sprintf(p, "%s", components[2][0] ? components[2] :
944 if (!g_ascii_strcasecmp(components[3], "i"))
945 p += sprintf(p, " italic");
946 else if (!g_ascii_strcasecmp(components[3], "o"))
947 p += sprintf(p, " oblique");
948 else if (!g_ascii_strcasecmp(components[3], "ri"))
949 p += sprintf(p, " reverse italic");
950 else if (!g_ascii_strcasecmp(components[3], "ro"))
951 p += sprintf(p, " reverse oblique");
952 else if (!g_ascii_strcasecmp(components[3], "ot"))
953 p += sprintf(p, " other-slant");
954 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
955 p += sprintf(p, " %s", components[4]);
956 if (!g_ascii_strcasecmp(components[10], "m"))
957 p += sprintf(p, " [M]");
958 if (!g_ascii_strcasecmp(components[10], "c"))
959 p += sprintf(p, " [C]");
960 if (components[5][0])
961 p += sprintf(p, " %s", components[5]);
964 * Style key is the same stuff as above, but with a
965 * couple of transformations done on it to make it
966 * sort more sensibly.
970 if (!g_ascii_strcasecmp(components[2], "medium") ||
971 !g_ascii_strcasecmp(components[2], "regular") ||
972 !g_ascii_strcasecmp(components[2], "normal") ||
973 !g_ascii_strcasecmp(components[2], "book"))
975 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
976 !g_ascii_strncasecmp(components[2], "semi", 4))
980 if (!g_ascii_strcasecmp(components[3], "r"))
982 else if (!g_ascii_strncasecmp(components[3], "r", 1))
986 if (!g_ascii_strcasecmp(components[4], "normal"))
991 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
993 (int)strlen(components[2]), components[2],
995 (int)strlen(components[3]), components[3],
997 (int)strlen(components[4]), components[4],
998 (int)strlen(components[10]), components[10],
999 (int)strlen(components[5]), components[5]);
1001 assert(p - tmp < thistmpsize);
1004 * Size is in pixels, for our application, so we
1005 * derive it directly from the pixel size field,
1008 fontsize = atoi(components[6]);
1011 * Flags: we need to know whether this is a monospaced
1012 * font, which we do by examining the spacing field
1015 flags = FONTFLAG_SERVERSIDE;
1016 if (!strchr("CcMm", components[10][0]))
1017 flags |= FONTFLAG_NONMONOSPACED;
1020 * Not sure why, but sometimes the X server will
1021 * deliver dummy font types in which fontsize comes
1022 * out as zero. Filter those out.
1025 callback(callback_ctx, fontnames[i], font, charset,
1026 style, stylekey, fontsize, flags, &x11font_vtable);
1029 * This isn't an XLFD, so it must be an alias.
1030 * Transmit it with mostly null data.
1032 * It would be nice to work out if it's monospaced
1033 * here, but at the moment I can't see that being
1034 * anything but computationally hideous. Ah well.
1036 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1037 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1040 XFreeFontNames(fontnames);
1043 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1044 int *size, int *flags,
1045 int resolve_aliases)
1048 * When given an X11 font name to try to make sense of for a
1049 * font selector, we must attempt to load it (to see if it
1050 * exists), and then canonify it by extracting its FONT
1051 * property, which should give its full XLFD even if what we
1052 * originally had was a wildcard.
1054 * However, we must carefully avoid canonifying font
1055 * _aliases_, unless specifically asked to, because the font
1056 * selector treats them as worthwhile in their own right.
1059 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1060 Atom fontprop, fontprop2;
1063 xfs = XLoadQueryFont(disp, name);
1066 return NULL; /* didn't make sense to us, sorry */
1068 fontprop = XInternAtom(disp, "FONT", False);
1070 if (XGetFontProperty(xfs, fontprop, &ret)) {
1071 char *newname = XGetAtomName(disp, (Atom)ret);
1073 unsigned long fsize = 12;
1075 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1076 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1078 XFreeFont(disp, xfs);
1080 if (name[0] == '-' || resolve_aliases)
1081 *flags = FONTFLAG_SERVERSIDE;
1083 *flags = FONTFLAG_SERVERALIAS;
1085 return dupstr(name[0] == '-' || resolve_aliases ?
1091 XFreeFont(disp, xfs);
1093 return NULL; /* something went wrong */
1096 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1099 return NULL; /* shan't */
1102 #endif /* NOT_X_WINDOWS */
1104 #if GTK_CHECK_VERSION(2,0,0)
1106 /* ----------------------------------------------------------------------
1107 * Pango font implementation (for GTK 2 only).
1110 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1111 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1114 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1115 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1116 int x, int y, const wchar_t *string, int len,
1117 int wide, int bold, int cellwidth);
1118 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1120 int shadowoffset, int shadowalways);
1121 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1123 int shadowoffset, int shadowalways);
1124 static void pangofont_destroy(unifont *font);
1125 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1126 void *callback_ctx);
1127 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1128 int *size, int *flags,
1129 int resolve_aliases);
1130 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1138 PangoFontDescription *desc;
1141 * The containing widget.
1145 * Data passed in to unifont_create().
1147 int bold, shadowoffset, shadowalways;
1150 static const struct unifont_vtable pangofont_vtable = {
1152 pangofont_create_fallback,
1154 pangofont_has_glyph,
1155 pangofont_draw_text,
1156 pangofont_enum_fonts,
1157 pangofont_canonify_fontname,
1158 pangofont_scale_fontname,
1163 * This function is used to rigorously validate a
1164 * PangoFontDescription. Later versions of Pango have a nasty
1165 * habit of accepting _any_ old string as input to
1166 * pango_font_description_from_string and returning a font
1167 * description which can actually be used to display text, even if
1168 * they have to do it by falling back to their most default font.
1169 * This is doubtless helpful in some situations, but not here,
1170 * because we need to know if a Pango font string actually _makes
1171 * sense_ in order to fall back to treating it as an X font name
1172 * if it doesn't. So we check that the font family is actually one
1173 * supported by Pango.
1175 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1176 PangoFontDescription *desc)
1178 #ifndef PANGO_PRE_1POINT6
1181 PangoFontFamily **families;
1182 int i, nfamilies, matched;
1185 * Ask Pango for a list of font families, and iterate through
1186 * them to see if one of them matches the family in the
1187 * PangoFontDescription.
1189 #ifndef PANGO_PRE_1POINT6
1190 map = pango_context_get_font_map(ctx);
1193 pango_font_map_list_families(map, &families, &nfamilies);
1195 pango_context_list_families(ctx, &families, &nfamilies);
1199 for (i = 0; i < nfamilies; i++) {
1200 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1201 pango_font_description_get_family(desc))) {
1211 static unifont *pangofont_create_internal(GtkWidget *widget,
1213 PangoFontDescription *desc,
1215 int shadowoffset, int shadowalways)
1217 struct pangofont *pfont;
1218 #ifndef PANGO_PRE_1POINT6
1222 PangoFontMetrics *metrics;
1224 #ifndef PANGO_PRE_1POINT6
1225 map = pango_context_get_font_map(ctx);
1227 pango_font_description_free(desc);
1230 fset = pango_font_map_load_fontset(map, ctx, desc,
1231 pango_context_get_language(ctx));
1233 fset = pango_context_load_fontset(ctx, desc,
1234 pango_context_get_language(ctx));
1237 pango_font_description_free(desc);
1240 metrics = pango_fontset_get_metrics(fset);
1242 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1243 pango_font_description_free(desc);
1244 g_object_unref(fset);
1248 pfont = snew(struct pangofont);
1249 pfont->u.vt = &pangofont_vtable;
1251 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1252 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1253 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1254 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1255 pfont->u.want_fallback = FALSE;
1256 #ifdef DRAW_TEXT_CAIRO
1257 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1258 #elif defined DRAW_TEXT_GDK
1259 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1261 #error No drawtype available at all
1263 /* The Pango API is hardwired to UTF-8 */
1264 pfont->u.public_charset = CS_UTF8;
1267 pfont->widget = widget;
1269 pfont->shadowoffset = shadowoffset;
1270 pfont->shadowalways = shadowalways;
1272 pango_font_metrics_unref(metrics);
1274 return (unifont *)pfont;
1277 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1279 int shadowoffset, int shadowalways)
1282 PangoFontDescription *desc;
1284 desc = pango_font_description_from_string(name);
1287 ctx = gtk_widget_get_pango_context(widget);
1289 pango_font_description_free(desc);
1292 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1293 pango_font_description_free(desc);
1296 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1297 shadowoffset, shadowalways);
1300 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1302 int shadowoffset, int shadowalways)
1305 PangoFontDescription *desc;
1307 desc = pango_font_description_from_string("Monospace");
1310 ctx = gtk_widget_get_pango_context(widget);
1312 pango_font_description_free(desc);
1315 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1316 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1317 shadowoffset, shadowalways);
1320 static void pangofont_destroy(unifont *font)
1322 struct pangofont *pfont = (struct pangofont *)font;
1323 pango_font_description_free(pfont->desc);
1324 g_object_unref(pfont->fset);
1328 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1330 /* Pango implements font fallback, so assume it has everything */
1334 #ifdef DRAW_TEXT_GDK
1335 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1336 gint x, gint y, PangoLayout *layout)
1338 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1342 #ifdef DRAW_TEXT_CAIRO
1343 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1344 gint x, gint y, PangoLayout *layout)
1346 cairo_move_to(ctx->u.cairo.cr, x, y);
1347 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1351 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1352 int x, int y, const wchar_t *string, int len,
1353 int wide, int bold, int cellwidth)
1355 struct pangofont *pfont = (struct pangofont *)font;
1356 PangoLayout *layout;
1357 PangoRectangle rect;
1358 char *utfstring, *utfptr;
1360 int shadowbold = FALSE;
1361 void (*draw_layout)(unifont_drawctx *ctx,
1362 gint x, gint y, PangoLayout *layout) = NULL;
1364 #ifdef DRAW_TEXT_GDK
1365 if (ctx->type == DRAWTYPE_GDK) {
1366 draw_layout = pango_gdk_draw_layout;
1369 #ifdef DRAW_TEXT_CAIRO
1370 if (ctx->type == DRAWTYPE_CAIRO) {
1371 draw_layout = pango_cairo_draw_layout;
1378 y -= pfont->u.ascent;
1380 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1381 pango_layout_set_font_description(layout, pfont->desc);
1382 if (bold > pfont->bold) {
1383 if (pfont->shadowalways)
1386 PangoFontDescription *desc2 =
1387 pango_font_description_copy_static(pfont->desc);
1388 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1389 pango_layout_set_font_description(layout, desc2);
1394 * Pango always expects UTF-8, so convert the input wide character
1397 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1398 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1399 utfstring, len*6+1, ".", NULL, NULL);
1402 while (utflen > 0) {
1406 * We want to display every character from this string in
1407 * the centre of its own character cell. In the worst case,
1408 * this requires a separate text-drawing call for each
1409 * character; but in the common case where the font is
1410 * properly fixed-width, we can draw many characters in one
1411 * go which is much faster.
1413 * This still isn't really ideal. If you look at what
1414 * happens in the X protocol as a result of all of this, you
1415 * find - naturally enough - that each call to
1416 * gdk_draw_layout() generates a separate set of X RENDER
1417 * operations involving creating a picture, setting a clip
1418 * rectangle, doing some drawing and undoing the whole lot.
1419 * In an ideal world, we should _always_ be able to turn the
1420 * contents of this loop into a single RenderCompositeGlyphs
1421 * operation which internally specifies inter-character
1422 * deltas to get the spacing right, which would give us full
1423 * speed _even_ in the worst case of a non-fixed-width font.
1424 * However, Pango's architecture and documentation are so
1425 * unhelpful that I have no idea how if at all to persuade
1430 * Start by extracting a single UTF-8 character from the
1434 while (clen < utflen &&
1435 (unsigned char)utfptr[clen] >= 0x80 &&
1436 (unsigned char)utfptr[clen] < 0xC0)
1441 * If it's a right-to-left character, we must display it on
1442 * its own, to stop Pango helpfully re-reversing our already
1445 if (!is_rtl(string[0])) {
1448 * See if that character has the width we expect.
1450 pango_layout_set_text(layout, utfptr, clen);
1451 pango_layout_get_pixel_extents(layout, NULL, &rect);
1453 if (rect.width == cellwidth) {
1455 * Try extracting more characters, for as long as they
1456 * stay well-behaved.
1458 while (clen < utflen) {
1460 clen++; /* skip UTF-8 introducer byte */
1461 while (clen < utflen &&
1462 (unsigned char)utfptr[clen] >= 0x80 &&
1463 (unsigned char)utfptr[clen] < 0xC0)
1466 pango_layout_set_text(layout, utfptr, clen);
1467 pango_layout_get_pixel_extents(layout, NULL, &rect);
1468 if (rect.width != n * cellwidth) {
1477 pango_layout_set_text(layout, utfptr, clen);
1478 pango_layout_get_pixel_extents(layout, NULL, &rect);
1481 x + (n*cellwidth - rect.width)/2,
1482 y + (pfont->u.height - rect.height)/2, layout);
1485 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1486 y + (pfont->u.height - rect.height)/2, layout);
1496 g_object_unref(layout);
1500 * Dummy size value to be used when converting a
1501 * PangoFontDescription of a scalable font to a string for
1504 #define PANGO_DUMMY_SIZE 12
1506 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1510 #ifndef PANGO_PRE_1POINT6
1513 PangoFontFamily **families;
1516 ctx = gtk_widget_get_pango_context(widget);
1521 * Ask Pango for a list of font families, and iterate through
1524 #ifndef PANGO_PRE_1POINT6
1525 map = pango_context_get_font_map(ctx);
1528 pango_font_map_list_families(map, &families, &nfamilies);
1530 pango_context_list_families(ctx, &families, &nfamilies);
1532 for (i = 0; i < nfamilies; i++) {
1533 PangoFontFamily *family = families[i];
1534 const char *familyname;
1536 PangoFontFace **faces;
1540 * Set up our flags for this font family, and get the name
1543 flags = FONTFLAG_CLIENTSIDE;
1544 #ifndef PANGO_PRE_1POINT4
1546 * In very early versions of Pango, we can't tell
1547 * monospaced fonts from non-monospaced.
1549 if (!pango_font_family_is_monospace(family))
1550 flags |= FONTFLAG_NONMONOSPACED;
1552 familyname = pango_font_family_get_name(family);
1555 * Go through the available font faces in this family.
1557 pango_font_family_list_faces(family, &faces, &nfaces);
1558 for (j = 0; j < nfaces; j++) {
1559 PangoFontFace *face = faces[j];
1560 PangoFontDescription *desc;
1561 const char *facename;
1563 int k, nsizes, dummysize;
1566 * Get the face name string.
1568 facename = pango_font_face_get_face_name(face);
1571 * Set up a font description with what we've got so
1572 * far. We'll fill in the size field manually and then
1573 * call pango_font_description_to_string() to give the
1574 * full real name of the specific font.
1576 desc = pango_font_face_describe(face);
1579 * See if this font has a list of specific sizes.
1581 #ifndef PANGO_PRE_1POINT4
1582 pango_font_face_list_sizes(face, &sizes, &nsizes);
1585 * In early versions of Pango, that call wasn't
1586 * supported; we just have to assume everything is
1593 * Write a single entry with a dummy size.
1595 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1601 * If so, go through them one by one.
1603 for (k = 0; k < nsizes; k++) {
1607 pango_font_description_set_size(desc, sizes[k]);
1609 fullname = pango_font_description_to_string(desc);
1612 * Construct the sorting key for font styles.
1618 n = pango_font_description_get_weight(desc);
1619 /* Weight: normal, then lighter, then bolder */
1620 if (n <= PANGO_WEIGHT_NORMAL)
1621 n = PANGO_WEIGHT_NORMAL - n;
1622 p += sprintf(p, "%4d", n);
1624 n = pango_font_description_get_style(desc);
1625 p += sprintf(p, " %2d", n);
1627 n = pango_font_description_get_stretch(desc);
1628 /* Stretch: closer to normal sorts earlier */
1629 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1630 (n < PANGO_STRETCH_NORMAL);
1631 p += sprintf(p, " %2d", n);
1633 n = pango_font_description_get_variant(desc);
1634 p += sprintf(p, " %2d", n);
1639 * Got everything. Hand off to the callback.
1640 * (The charset string is NULL, because only
1641 * server-side X fonts use it.)
1643 callback(callback_ctx, fullname, familyname, NULL, facename,
1645 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1646 flags, &pangofont_vtable);
1650 if (sizes != &dummysize)
1653 pango_font_description_free(desc);
1660 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1661 int *size, int *flags,
1662 int resolve_aliases)
1665 * When given a Pango font name to try to make sense of for a
1666 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1667 * extract its original size (in pixels) into the `size' field.
1670 #ifndef PANGO_PRE_1POINT6
1673 PangoFontDescription *desc;
1675 PangoFontMetrics *metrics;
1676 char *newname, *retname;
1678 desc = pango_font_description_from_string(name);
1681 ctx = gtk_widget_get_pango_context(widget);
1683 pango_font_description_free(desc);
1686 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1687 pango_font_description_free(desc);
1690 #ifndef PANGO_PRE_1POINT6
1691 map = pango_context_get_font_map(ctx);
1693 pango_font_description_free(desc);
1696 fset = pango_font_map_load_fontset(map, ctx, desc,
1697 pango_context_get_language(ctx));
1699 fset = pango_context_load_fontset(ctx, desc,
1700 pango_context_get_language(ctx));
1703 pango_font_description_free(desc);
1706 metrics = pango_fontset_get_metrics(fset);
1708 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1709 pango_font_description_free(desc);
1710 g_object_unref(fset);
1714 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1715 *flags = FONTFLAG_CLIENTSIDE;
1716 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1717 newname = pango_font_description_to_string(desc);
1718 retname = dupstr(newname);
1721 pango_font_metrics_unref(metrics);
1722 pango_font_description_free(desc);
1723 g_object_unref(fset);
1728 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1731 PangoFontDescription *desc;
1732 char *newname, *retname;
1734 desc = pango_font_description_from_string(name);
1737 pango_font_description_set_size(desc, size * PANGO_SCALE);
1738 newname = pango_font_description_to_string(desc);
1739 retname = dupstr(newname);
1741 pango_font_description_free(desc);
1746 #endif /* GTK_CHECK_VERSION(2,0,0) */
1748 /* ----------------------------------------------------------------------
1749 * Outermost functions which do the vtable dispatch.
1753 * Complete list of font-type subclasses. Listed in preference
1754 * order for unifont_create(). (That is, in the extremely unlikely
1755 * event that the same font name is valid as both a Pango and an
1756 * X11 font, it will be interpreted as the former in the absence
1757 * of an explicit type-disambiguating prefix.)
1759 * The 'multifont' subclass is omitted here, as discussed above.
1761 static const struct unifont_vtable *unifont_types[] = {
1762 #if GTK_CHECK_VERSION(2,0,0)
1765 #ifndef NOT_X_WINDOWS
1771 * Function which takes a font name and processes the optional
1772 * scheme prefix. Returns the tail of the font name suitable for
1773 * passing to individual font scheme functions, and also provides
1774 * a subrange of the unifont_types[] array above.
1776 * The return values `start' and `end' denote a half-open interval
1777 * in unifont_types[]; that is, the correct way to iterate over
1780 * for (i = start; i < end; i++) {...}
1782 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1784 int colonpos = strcspn(name, ":");
1787 if (name[colonpos]) {
1789 * There's a colon prefix on the font name. Use it to work
1790 * out which subclass to use.
1792 for (i = 0; i < lenof(unifont_types); i++) {
1793 if (strlen(unifont_types[i]->prefix) == colonpos &&
1794 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1797 return name + colonpos + 1;
1801 * None matched, so return an empty scheme list to prevent
1802 * any scheme from being called at all.
1805 return name + colonpos + 1;
1808 * No colon prefix, so just use all the subclasses.
1811 *end = lenof(unifont_types);
1816 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1817 int bold, int shadowoffset, int shadowalways)
1821 name = unifont_do_prefix(name, &start, &end);
1823 for (i = start; i < end; i++) {
1824 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1825 shadowoffset, shadowalways);
1829 return NULL; /* font not found in any scheme */
1832 void unifont_destroy(unifont *font)
1834 font->vt->destroy(font);
1837 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1838 int x, int y, const wchar_t *string, int len,
1839 int wide, int bold, int cellwidth)
1841 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1844 /* ----------------------------------------------------------------------
1845 * Multiple-font wrapper. This is a type of unifont which encapsulates
1846 * up to two other unifonts, permitting missing glyphs in the main
1847 * font to be filled in by a fallback font.
1849 * This is a type of unifont just like the previous two, but it has a
1850 * separate constructor which is manually called by the client, so it
1851 * doesn't appear in the list of available font types enumerated by
1852 * unifont_create. This means it's not used by unifontsel either, so
1853 * it doesn't need to support any methods except draw_text and
1857 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1858 int x, int y, const wchar_t *string, int len,
1859 int wide, int bold, int cellwidth);
1860 static void multifont_destroy(unifont *font);
1868 static const struct unifont_vtable multifont_vtable = {
1869 NULL, /* creation is done specially */
1873 multifont_draw_text,
1880 unifont *multifont_create(GtkWidget *widget, const char *name,
1882 int shadowoffset, int shadowalways)
1885 unifont *font, *fallback;
1886 struct multifont *mfont;
1888 font = unifont_create(widget, name, wide, bold,
1889 shadowoffset, shadowalways);
1894 if (font->want_fallback) {
1895 for (i = 0; i < lenof(unifont_types); i++) {
1896 if (unifont_types[i]->create_fallback) {
1897 fallback = unifont_types[i]->create_fallback
1898 (widget, font->height, wide, bold,
1899 shadowoffset, shadowalways);
1907 * Construct our multifont. Public members are all copied from the
1908 * primary font we're wrapping.
1910 mfont = snew(struct multifont);
1911 mfont->u.vt = &multifont_vtable;
1912 mfont->u.width = font->width;
1913 mfont->u.ascent = font->ascent;
1914 mfont->u.descent = font->descent;
1915 mfont->u.height = font->height;
1916 mfont->u.public_charset = font->public_charset;
1917 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1918 mfont->u.preferred_drawtype = font->preferred_drawtype;
1920 mfont->fallback = fallback;
1922 return (unifont *)mfont;
1925 static void multifont_destroy(unifont *font)
1927 struct multifont *mfont = (struct multifont *)font;
1928 unifont_destroy(mfont->main);
1929 if (mfont->fallback)
1930 unifont_destroy(mfont->fallback);
1934 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1935 int y, const wchar_t *string, int len,
1936 int wide, int bold, int cellwidth)
1938 struct multifont *mfont = (struct multifont *)font;
1944 * Find a maximal sequence of characters which are, or are
1945 * not, supported by our main font.
1947 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1950 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1956 f = ok ? mfont->main : mfont->fallback;
1958 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1965 #if GTK_CHECK_VERSION(2,0,0)
1967 /* ----------------------------------------------------------------------
1968 * Implementation of a unified font selector. Used on GTK 2 only;
1969 * for GTK 1 we still use the standard font selector.
1972 typedef struct fontinfo fontinfo;
1974 typedef struct unifontsel_internal {
1975 /* This must be the structure's first element, for cross-casting */
1977 GtkListStore *family_model, *style_model, *size_model;
1978 GtkWidget *family_list, *style_list, *size_entry, *size_list;
1979 GtkWidget *filter_buttons[4];
1980 int n_filter_buttons;
1981 GtkWidget *preview_area;
1982 #ifndef NO_BACKING_PIXMAPS
1983 GdkPixmap *preview_pixmap;
1985 int preview_width, preview_height;
1986 GdkColor preview_fg, preview_bg;
1988 tree234 *fonts_by_realname, *fonts_by_selorder;
1990 int selsize, intendedsize;
1991 int inhibit_response; /* inhibit callbacks when we change GUI controls */
1992 } unifontsel_internal;
1995 * The structure held in the tree234s. All the string members are
1996 * part of the same allocated area, so don't need freeing
2001 char *family, *charset, *style, *stylekey;
2004 * Fallback sorting key, to permit multiple identical entries
2005 * to exist in the selorder tree.
2009 * Indices mapping fontinfo structures to indices in the list
2010 * boxes. sizeindex is irrelevant if the font is scalable
2013 int familyindex, styleindex, sizeindex;
2015 * The class of font.
2017 const struct unifont_vtable *fontclass;
2020 struct fontinfo_realname_find {
2021 const char *realname;
2025 static int strnullcasecmp(const char *a, const char *b)
2030 * If exactly one of the inputs is NULL, it compares before
2033 if ((i = (!b) - (!a)) != 0)
2037 * NULL compares equal.
2043 * Otherwise, ordinary strcasecmp.
2045 return g_ascii_strcasecmp(a, b);
2048 static int fontinfo_realname_compare(void *av, void *bv)
2050 fontinfo *a = (fontinfo *)av;
2051 fontinfo *b = (fontinfo *)bv;
2054 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2056 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2057 return ((a->flags & FONTFLAG_SORT_MASK) <
2058 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2062 static int fontinfo_realname_find(void *av, void *bv)
2064 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2065 fontinfo *b = (fontinfo *)bv;
2068 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2070 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2071 return ((a->flags & FONTFLAG_SORT_MASK) <
2072 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2076 static int fontinfo_selorder_compare(void *av, void *bv)
2078 fontinfo *a = (fontinfo *)av;
2079 fontinfo *b = (fontinfo *)bv;
2081 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2084 * Font class comes immediately after family, so that fonts
2085 * from different classes with the same family
2087 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2088 return ((a->flags & FONTFLAG_SORT_MASK) <
2089 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2090 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2092 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2094 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2096 if (a->size != b->size)
2097 return (a->size < b->size ? -1 : +1);
2098 if (a->index != b->index)
2099 return (a->index < b->index ? -1 : +1);
2103 static void unifontsel_deselect(unifontsel_internal *fs)
2105 fs->selected = NULL;
2106 gtk_list_store_clear(fs->style_model);
2107 gtk_list_store_clear(fs->size_model);
2108 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2109 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2112 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2115 int i, listindex, minpos = -1, maxpos = -1;
2116 char *currfamily = NULL;
2120 gtk_list_store_clear(fs->family_model);
2124 * Search through the font tree for anything matching our
2125 * current filter criteria. When we find one, add its font
2126 * name to the list box.
2128 for (i = 0 ;; i++) {
2129 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2131 * info may be NULL if we've just run off the end of the
2132 * tree. We must still do a processing pass in that
2133 * situation, in case we had an unfinished font record in
2136 if (info && (info->flags &~ fs->filter_flags)) {
2137 info->familyindex = -1;
2138 continue; /* we're filtering out this font */
2140 if (!info || strnullcasecmp(currfamily, info->family) ||
2141 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2143 * We've either finished a family, or started a new
2147 gtk_list_store_append(fs->family_model, &iter);
2148 gtk_list_store_set(fs->family_model, &iter,
2149 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2154 currfamily = info->family;
2155 currflags = info->flags & FONTFLAG_SORT_MASK;
2159 break; /* now we're done */
2160 info->familyindex = listindex;
2165 * If we've just filtered out the previously selected font,
2166 * deselect it thoroughly.
2168 if (fs->selected && fs->selected->familyindex < 0)
2169 unifontsel_deselect(fs);
2172 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2176 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2177 char *currcs = NULL, *currstyle = NULL;
2180 gtk_list_store_clear(fs->style_model);
2185 * Search through the font tree for anything matching our
2186 * current filter criteria. When we find one, add its charset
2187 * and/or style name to the list box.
2189 for (i = start; i <= end; i++) {
2193 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2195 * info may be NULL if we've just run off the end of the
2196 * relevant data. We must still do a processing pass in
2197 * that situation, in case we had an unfinished font
2198 * record in progress.
2200 if (info && (info->flags &~ fs->filter_flags)) {
2201 info->styleindex = -1;
2202 continue; /* we're filtering out this font */
2204 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2205 strnullcasecmp(currstyle, info->style)) {
2207 * We've either finished a style/charset, or started a
2212 gtk_list_store_append(fs->style_model, &iter);
2213 gtk_list_store_set(fs->style_model, &iter,
2214 0, currstyle, 1, minpos, 2, maxpos+1,
2220 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2221 gtk_list_store_append(fs->style_model, &iter);
2222 gtk_list_store_set(fs->style_model, &iter,
2223 0, info->charset, 1, -1, 2, -1,
2227 currcs = info->charset;
2228 currstyle = info->style;
2232 break; /* now we're done */
2233 info->styleindex = listindex;
2238 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2240 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2248 gtk_list_store_clear(fs->size_model);
2252 * Search through the font tree for anything matching our
2253 * current filter criteria. When we find one, add its font
2254 * name to the list box.
2256 for (i = start; i < end; i++) {
2257 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2258 if (info->flags &~ fs->filter_flags) {
2259 info->sizeindex = -1;
2260 continue; /* we're filtering out this font */
2263 sprintf(sizetext, "%d", info->size);
2264 info->sizeindex = listindex;
2265 gtk_list_store_append(fs->size_model, &iter);
2266 gtk_list_store_set(fs->size_model, &iter,
2267 0, sizetext, 1, i, 2, info->size, -1);
2275 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2276 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2277 gtk_list_store_append(fs->size_model, &iter);
2278 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2279 2, unifontsel_default_sizes[j], -1);
2286 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2290 for (i = 0; i < fs->n_filter_buttons; i++) {
2291 int flagbit = GPOINTER_TO_INT(g_object_get_data
2292 (G_OBJECT(fs->filter_buttons[i]),
2294 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2295 !!(fs->filter_flags & flagbit));
2299 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2300 unifontsel_internal *fs)
2303 char *sizename = NULL;
2304 fontinfo *info = fs->selected;
2307 sizename = info->fontclass->scale_fontname
2308 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2309 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2310 sizename ? sizename : info->realname,
2311 FALSE, FALSE, 0, 0);
2316 #ifdef DRAW_TEXT_GDK
2317 if (dctx->type == DRAWTYPE_GDK) {
2318 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2319 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2320 fs->preview_width, fs->preview_height);
2321 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2324 #ifdef DRAW_TEXT_CAIRO
2325 if (dctx->type == DRAWTYPE_CAIRO) {
2326 cairo_set_source_rgb(dctx->u.cairo.cr,
2327 fs->preview_bg.red / 65535.0,
2328 fs->preview_bg.green / 65535.0,
2329 fs->preview_bg.blue / 65535.0);
2330 cairo_paint(dctx->u.cairo.cr);
2331 cairo_set_source_rgb(dctx->u.cairo.cr,
2332 fs->preview_fg.red / 65535.0,
2333 fs->preview_fg.green / 65535.0,
2334 fs->preview_fg.blue / 65535.0);
2339 * The pangram used here is rather carefully
2340 * constructed: it contains a sequence of very narrow
2341 * letters (`jil') and a pair of adjacent very wide
2344 * If the user selects a proportional font, it will be
2345 * coerced into fixed-width character cells when used
2346 * in the actual terminal window. We therefore display
2347 * it the same way in the preview pane, so as to show
2348 * it the way it will actually be displayed - and we
2349 * deliberately pick a pangram which will show the
2350 * resulting miskerning at its worst.
2352 * We aren't trying to sell people these fonts; we're
2353 * trying to let them make an informed choice. Better
2354 * that they find out the problems with using
2355 * proportional fonts in terminal windows here than
2356 * that they go to the effort of selecting their font
2357 * and _then_ realise it was a mistake.
2359 info->fontclass->draw_text(dctx, font,
2361 L"bankrupt jilted showmen quiz convex fogey",
2362 41, FALSE, FALSE, font->width);
2363 info->fontclass->draw_text(dctx, font,
2364 0, font->ascent + font->height,
2365 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2366 41, FALSE, FALSE, font->width);
2368 * The ordering of punctuation here is also selected
2369 * with some specific aims in mind. I put ` and '
2370 * together because some software (and people) still
2371 * use them as matched quotes no matter what Unicode
2372 * might say on the matter, so people can quickly
2373 * check whether they look silly in a candidate font.
2374 * The sequence #_@ is there to let people judge the
2375 * suitability of the underscore as an effectively
2376 * alphabetic character (since that's how it's often
2377 * used in practice, at least by programmers).
2379 info->fontclass->draw_text(dctx, font,
2380 0, font->ascent + font->height * 2,
2381 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2382 42, FALSE, FALSE, font->width);
2384 info->fontclass->destroy(font);
2390 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2392 unifont_drawctx dctx;
2395 #ifndef NO_BACKING_PIXMAPS
2396 target = fs->preview_pixmap;
2398 target = gtk_widget_get_window(fs->preview_area);
2400 if (!target) /* we may be called when we haven't created everything yet */
2403 dctx.type = DRAWTYPE_DEFAULT;
2404 #ifdef DRAW_TEXT_GDK
2405 if (dctx.type == DRAWTYPE_GDK) {
2406 dctx.u.gdk.target = target;
2407 dctx.u.gdk.gc = gdk_gc_new(target);
2410 #ifdef DRAW_TEXT_CAIRO
2411 if (dctx.type == DRAWTYPE_CAIRO) {
2412 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2413 dctx.u.cairo.cr = gdk_cairo_create(target);
2417 unifontsel_draw_preview_text_inner(&dctx, fs);
2419 #ifdef DRAW_TEXT_GDK
2420 if (dctx.type == DRAWTYPE_GDK) {
2421 gdk_gc_unref(dctx.u.gdk.gc);
2424 #ifdef DRAW_TEXT_CAIRO
2425 if (dctx.type == DRAWTYPE_CAIRO) {
2426 cairo_destroy(dctx.u.cairo.cr);
2430 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2434 static void unifontsel_select_font(unifontsel_internal *fs,
2435 fontinfo *info, int size, int leftlist,
2436 int size_is_explicit)
2440 GtkTreePath *treepath;
2443 fs->inhibit_response = TRUE;
2445 fs->selected = info;
2447 if (size_is_explicit)
2448 fs->intendedsize = size;
2450 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2453 * Find the index of this fontinfo in the selorder list.
2456 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2460 * Adjust the font selector flags and redo the font family
2461 * list box, if necessary.
2463 if (leftlist <= 0 &&
2464 (fs->filter_flags | info->flags) != fs->filter_flags) {
2465 fs->filter_flags |= info->flags;
2466 unifontsel_set_filter_buttons(fs);
2467 unifontsel_setup_familylist(fs);
2471 * Find the appropriate family name and select it in the list.
2473 assert(info->familyindex >= 0);
2474 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2475 gtk_tree_selection_select_path
2476 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2478 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2479 treepath, NULL, FALSE, 0.0, 0.0);
2480 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, treepath);
2481 gtk_tree_path_free(treepath);
2484 * Now set up the font style list.
2486 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2487 1, &minval, 2, &maxval, -1);
2489 unifontsel_setup_stylelist(fs, minval, maxval);
2492 * Find the appropriate style name and select it in the list.
2495 assert(info->styleindex >= 0);
2496 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2497 gtk_tree_selection_select_path
2498 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2500 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2501 treepath, NULL, FALSE, 0.0, 0.0);
2502 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2504 gtk_tree_path_free(treepath);
2507 * And set up the size list.
2509 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2510 1, &minval, 2, &maxval, -1);
2512 unifontsel_setup_sizelist(fs, minval, maxval);
2515 * Find the appropriate size, and select it in the list.
2518 assert(info->sizeindex >= 0);
2519 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2520 gtk_tree_selection_select_path
2521 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2523 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2524 treepath, NULL, FALSE, 0.0, 0.0);
2525 gtk_tree_path_free(treepath);
2529 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2530 if (unifontsel_default_sizes[j] == size) {
2531 treepath = gtk_tree_path_new_from_indices(j, -1);
2532 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2533 treepath, NULL, FALSE);
2534 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2535 treepath, NULL, FALSE, 0.0,
2537 gtk_tree_path_free(treepath);
2542 * And set up the font size text entry box.
2546 sprintf(sizetext, "%d", size);
2547 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2551 unifontsel_setup_sizelist(fs, 0, 0);
2552 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2556 * Grey out the font size edit box if we're not using a
2559 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2560 fs->selected->size == 0);
2561 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2563 unifontsel_draw_preview_text(fs);
2565 fs->inhibit_response = FALSE;
2568 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2570 unifontsel_internal *fs = (unifontsel_internal *)data;
2571 int newstate = gtk_toggle_button_get_active(tb);
2573 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2577 newflags = fs->filter_flags | flagbit;
2579 newflags = fs->filter_flags & ~flagbit;
2581 if (fs->filter_flags != newflags) {
2582 fs->filter_flags = newflags;
2583 unifontsel_setup_familylist(fs);
2587 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2588 const char *family, const char *charset,
2589 const char *style, const char *stylekey,
2590 int size, int flags,
2591 const struct unifont_vtable *fontclass)
2593 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2598 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2599 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2600 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2601 info = (fontinfo *)smalloc(totalsize);
2602 info->fontclass = fontclass;
2603 p = (char *)info + sizeof(fontinfo);
2605 strcpy(p, realfontname);
2612 info->family = NULL;
2618 info->charset = NULL;
2627 strcpy(p, stylekey);
2630 info->stylekey = NULL;
2631 assert(p - (char *)info <= totalsize);
2633 info->flags = flags;
2634 info->index = count234(fs->fonts_by_selorder);
2637 * It's just conceivable that a misbehaving font enumerator
2638 * might tell us about the same font real name more than once,
2639 * in which case we should silently drop the new one.
2641 if (add234(fs->fonts_by_realname, info) != info) {
2646 * However, we should never get a duplicate key in the
2647 * selorder tree, because the index field carefully
2648 * disambiguates otherwise identical records.
2650 add234(fs->fonts_by_selorder, info);
2653 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2656 fontinfo info2, *below, *above;
2660 * Copy the info structure. This doesn't copy its dynamic
2661 * string fields, but that's unimportant because all we're
2662 * going to do is to adjust the size field and use it in one
2666 info2.size = fs->intendedsize;
2669 * Search in the tree to find the fontinfo structure which
2670 * best approximates the size the user last requested.
2672 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2676 above = index234(fs->fonts_by_selorder, pos+1);
2679 * See if we've found it exactly, which is an easy special
2680 * case. If we have, it'll be in `below' and not `above',
2681 * because we did a REL234_LE rather than REL234_LT search.
2683 if (below && !fontinfo_selorder_compare(&info2, below))
2687 * Now we've either found two suitable fonts, one smaller and
2688 * one larger, or we're at one or other extreme end of the
2689 * scale. Find out which, by NULLing out either of below and
2690 * above if it differs from this one in any respect but size
2691 * (and the disambiguating index field). Bear in mind, also,
2692 * that either one might _already_ be NULL if we're at the
2693 * extreme ends of the font list.
2696 info2.size = below->size;
2697 info2.index = below->index;
2698 if (fontinfo_selorder_compare(&info2, below))
2702 info2.size = above->size;
2703 info2.index = above->index;
2704 if (fontinfo_selorder_compare(&info2, above))
2709 * Now return whichever of above and below is non-NULL, if
2710 * that's unambiguous.
2718 * And now we really do have to make a choice about whether to
2719 * round up or down. We'll do it by rounding to nearest,
2720 * breaking ties by rounding up.
2722 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2728 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2730 unifontsel_internal *fs = (unifontsel_internal *)data;
2731 GtkTreeModel *treemodel;
2732 GtkTreeIter treeiter;
2736 if (fs->inhibit_response) /* we made this change ourselves */
2739 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2742 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2743 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2744 info = update_for_intended_size(fs, info);
2746 return; /* _shouldn't_ happen unless font list is completely funted */
2748 fs->selsize = fs->intendedsize; /* font is scalable */
2749 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2753 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2755 unifontsel_internal *fs = (unifontsel_internal *)data;
2756 GtkTreeModel *treemodel;
2757 GtkTreeIter treeiter;
2761 if (fs->inhibit_response) /* we made this change ourselves */
2764 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2767 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2769 return; /* somehow a charset heading got clicked */
2770 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2771 info = update_for_intended_size(fs, info);
2773 return; /* _shouldn't_ happen unless font list is completely funted */
2775 fs->selsize = fs->intendedsize; /* font is scalable */
2776 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2780 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2782 unifontsel_internal *fs = (unifontsel_internal *)data;
2783 GtkTreeModel *treemodel;
2784 GtkTreeIter treeiter;
2788 if (fs->inhibit_response) /* we made this change ourselves */
2791 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2794 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2795 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2796 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2799 static void size_entry_changed(GtkEditable *ed, gpointer data)
2801 unifontsel_internal *fs = (unifontsel_internal *)data;
2805 if (fs->inhibit_response) /* we made this change ourselves */
2808 text = gtk_entry_get_text(GTK_ENTRY(ed));
2812 assert(fs->selected->size == 0);
2813 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2817 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2818 GtkTreeViewColumn *column, gpointer data)
2820 unifontsel_internal *fs = (unifontsel_internal *)data;
2822 int minval, newsize;
2823 fontinfo *info, *newinfo;
2826 if (fs->inhibit_response) /* we made this change ourselves */
2829 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2830 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2831 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2834 struct fontinfo_realname_find f;
2836 newname = info->fontclass->canonify_fontname
2837 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2839 f.realname = newname;
2841 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2845 return; /* font name not in our index */
2846 if (newinfo == info)
2847 return; /* didn't change under canonification => not an alias */
2848 unifontsel_select_font(fs, newinfo,
2849 newinfo->size ? newinfo->size : newsize,
2854 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2857 unifontsel_internal *fs = (unifontsel_internal *)data;
2859 #ifndef NO_BACKING_PIXMAPS
2860 if (fs->preview_pixmap) {
2861 gdk_draw_pixmap(gtk_widget_get_window(widget),
2862 (gtk_widget_get_style(widget)->fg_gc
2863 [gtk_widget_get_state(widget)]),
2865 event->area.x, event->area.y,
2866 event->area.x, event->area.y,
2867 event->area.width, event->area.height);
2870 unifontsel_draw_preview_text(fs);
2876 static gint unifontsel_configure_area(GtkWidget *widget,
2877 GdkEventConfigure *event, gpointer data)
2879 #ifndef NO_BACKING_PIXMAPS
2880 unifontsel_internal *fs = (unifontsel_internal *)data;
2881 int ox, oy, nx, ny, x, y;
2884 * Enlarge the pixmap, but never shrink it.
2886 ox = fs->preview_width;
2887 oy = fs->preview_height;
2890 if (x > ox || y > oy) {
2891 if (fs->preview_pixmap)
2892 gdk_pixmap_unref(fs->preview_pixmap);
2894 nx = (x > ox ? x : ox);
2895 ny = (y > oy ? y : oy);
2896 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2898 fs->preview_width = nx;
2899 fs->preview_height = ny;
2901 unifontsel_draw_preview_text(fs);
2905 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
2910 unifontsel *unifontsel_new(const char *wintitle)
2912 unifontsel_internal *fs = snew(unifontsel_internal);
2913 GtkWidget *table, *label, *w, *ww, *scroll;
2914 GtkListStore *model;
2915 GtkTreeViewColumn *column;
2916 int lists_height, preview_height, font_width, style_width, size_width;
2919 fs->inhibit_response = FALSE;
2920 fs->selected = NULL;
2924 * Invent some magic size constants.
2927 label = gtk_label_new("Quite Long Font Name (Foundry)");
2928 gtk_widget_size_request(label, &req);
2929 font_width = req.width;
2930 lists_height = 14 * req.height;
2931 preview_height = 5 * req.height;
2932 gtk_label_set_text(GTK_LABEL(label), "Italic Extra Condensed");
2933 gtk_widget_size_request(label, &req);
2934 style_width = req.width;
2935 gtk_label_set_text(GTK_LABEL(label), "48000");
2936 gtk_widget_size_request(label, &req);
2937 size_width = req.width;
2938 g_object_ref_sink(G_OBJECT(label));
2939 #if GTK_CHECK_VERSION(2,10,0)
2940 g_object_unref(label);
2945 * Create the dialog box and initialise the user-visible
2946 * fields in the returned structure.
2948 fs->u.user_data = NULL;
2949 fs->u.window = GTK_WINDOW(gtk_dialog_new());
2950 gtk_window_set_title(fs->u.window, wintitle);
2951 fs->u.cancel_button = gtk_dialog_add_button
2952 (GTK_DIALOG(fs->u.window), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
2953 fs->u.ok_button = gtk_dialog_add_button
2954 (GTK_DIALOG(fs->u.window), GTK_STOCK_OK, GTK_RESPONSE_OK);
2955 gtk_widget_grab_default(fs->u.ok_button);
2958 * Now set up the internal fields, including in particular all
2959 * the controls that actually allow the user to select fonts.
2961 table = gtk_table_new(8, 3, FALSE);
2962 gtk_widget_show(table);
2963 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
2964 #if GTK_CHECK_VERSION(2,4,0)
2965 /* GtkAlignment seems to be the simplest way to put padding round things */
2966 w = gtk_alignment_new(0, 0, 1, 1);
2967 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
2968 gtk_container_add(GTK_CONTAINER(w), table);
2973 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
2974 (GTK_DIALOG(fs->u.window))),
2977 label = gtk_label_new_with_mnemonic("_Font:");
2978 gtk_widget_show(label);
2979 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
2980 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
2983 * The Font list box displays only a string, but additionally
2984 * stores two integers which give the limits within the
2985 * tree234 of the font entries covered by this list entry.
2987 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
2988 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
2989 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2990 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
2992 column = gtk_tree_view_column_new_with_attributes
2993 ("Font", gtk_cell_renderer_text_new(),
2994 "text", 0, (char *)NULL);
2995 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
2996 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2997 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
2998 "changed", G_CALLBACK(family_changed), fs);
2999 g_signal_connect(G_OBJECT(w), "row-activated",
3000 G_CALLBACK(alias_resolve), fs);
3002 scroll = gtk_scrolled_window_new(NULL, NULL);
3003 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3005 gtk_container_add(GTK_CONTAINER(scroll), w);
3006 gtk_widget_show(scroll);
3007 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3008 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3009 gtk_widget_set_size_request(scroll, font_width, lists_height);
3010 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3011 GTK_EXPAND | GTK_FILL, 0, 0);
3012 fs->family_model = model;
3013 fs->family_list = w;
3015 label = gtk_label_new_with_mnemonic("_Style:");
3016 gtk_widget_show(label);
3017 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3018 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3021 * The Style list box can contain insensitive elements
3022 * (character set headings for server-side fonts), so we add
3023 * an extra column to the list store to hold that information.
3025 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3027 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3028 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3029 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3031 column = gtk_tree_view_column_new_with_attributes
3032 ("Style", gtk_cell_renderer_text_new(),
3033 "text", 0, "sensitive", 3, (char *)NULL);
3034 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3035 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3036 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3037 "changed", G_CALLBACK(style_changed), fs);
3039 scroll = gtk_scrolled_window_new(NULL, NULL);
3040 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3042 gtk_container_add(GTK_CONTAINER(scroll), w);
3043 gtk_widget_show(scroll);
3044 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3045 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3046 gtk_widget_set_size_request(scroll, style_width, lists_height);
3047 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3048 GTK_EXPAND | GTK_FILL, 0, 0);
3049 fs->style_model = model;
3052 label = gtk_label_new_with_mnemonic("Si_ze:");
3053 gtk_widget_show(label);
3054 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3055 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3058 * The Size label attaches primarily to a text input box so
3059 * that the user can select a size of their choice. The list
3060 * of available sizes is secondary.
3062 fs->size_entry = w = gtk_entry_new();
3063 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3064 gtk_widget_set_size_request(w, size_width, -1);
3066 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3067 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3070 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3071 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3072 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3074 column = gtk_tree_view_column_new_with_attributes
3075 ("Size", gtk_cell_renderer_text_new(),
3076 "text", 0, (char *)NULL);
3077 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3078 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3079 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3080 "changed", G_CALLBACK(size_changed), fs);
3082 scroll = gtk_scrolled_window_new(NULL, NULL);
3083 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3085 gtk_container_add(GTK_CONTAINER(scroll), w);
3086 gtk_widget_show(scroll);
3087 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3088 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3089 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3090 GTK_EXPAND | GTK_FILL, 0, 0);
3091 fs->size_model = model;
3097 fs->preview_area = gtk_drawing_area_new();
3098 #ifndef NO_BACKING_PIXMAPS
3099 fs->preview_pixmap = NULL;
3101 fs->preview_width = 0;
3102 fs->preview_height = 0;
3103 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3104 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3105 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3106 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3108 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3110 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3111 G_CALLBACK(unifontsel_expose_area), fs);
3112 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3113 G_CALLBACK(unifontsel_configure_area), fs);
3114 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3115 gtk_widget_show(fs->preview_area);
3116 ww = fs->preview_area;
3117 w = gtk_frame_new(NULL);
3118 gtk_container_add(GTK_CONTAINER(w), ww);
3120 #if GTK_CHECK_VERSION(2,4,0)
3122 /* GtkAlignment seems to be the simplest way to put padding round things */
3123 w = gtk_alignment_new(0, 0, 1, 1);
3124 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3125 gtk_container_add(GTK_CONTAINER(w), ww);
3129 w = gtk_frame_new("Preview of font");
3130 gtk_container_add(GTK_CONTAINER(w), ww);
3132 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3133 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3136 * We only provide the checkboxes for client- and server-side
3137 * fonts if we have the X11 back end available, because that's the
3138 * only situation in which more than one class of font is
3141 fs->n_filter_buttons = 0;
3142 #ifndef NOT_X_WINDOWS
3143 w = gtk_check_button_new_with_label("Show client-side fonts");
3144 g_object_set_data(G_OBJECT(w), "user-data",
3145 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3146 g_signal_connect(G_OBJECT(w), "toggled",
3147 G_CALLBACK(unifontsel_button_toggled), fs);
3149 fs->filter_buttons[fs->n_filter_buttons++] = w;
3150 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3151 w = gtk_check_button_new_with_label("Show server-side fonts");
3152 g_object_set_data(G_OBJECT(w), "user-data",
3153 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3154 g_signal_connect(G_OBJECT(w), "toggled",
3155 G_CALLBACK(unifontsel_button_toggled), fs);
3157 fs->filter_buttons[fs->n_filter_buttons++] = w;
3158 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3159 w = gtk_check_button_new_with_label("Show server-side font aliases");
3160 g_object_set_data(G_OBJECT(w), "user-data",
3161 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3162 g_signal_connect(G_OBJECT(w), "toggled",
3163 G_CALLBACK(unifontsel_button_toggled), fs);
3165 fs->filter_buttons[fs->n_filter_buttons++] = w;
3166 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3168 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3169 g_object_set_data(G_OBJECT(w), "user-data",
3170 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3171 g_signal_connect(G_OBJECT(w), "toggled",
3172 G_CALLBACK(unifontsel_button_toggled), fs);
3174 fs->filter_buttons[fs->n_filter_buttons++] = w;
3175 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3177 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3178 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3179 FONTFLAG_SERVERALIAS;
3180 unifontsel_set_filter_buttons(fs);
3183 * Go and find all the font names, and set up our master font
3186 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3187 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3188 for (i = 0; i < lenof(unifont_types); i++)
3189 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3190 unifontsel_add_entry, fs);
3193 * And set up the initial font names list.
3195 unifontsel_setup_familylist(fs);
3197 fs->selsize = fs->intendedsize = 13; /* random default */
3198 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3200 return (unifontsel *)fs;
3203 void unifontsel_destroy(unifontsel *fontsel)
3205 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3208 #ifndef NO_BACKING_PIXMAPS
3209 if (fs->preview_pixmap)
3210 gdk_pixmap_unref(fs->preview_pixmap);
3213 freetree234(fs->fonts_by_selorder);
3214 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3216 freetree234(fs->fonts_by_realname);
3218 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3222 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3224 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3225 int i, start, end, size, flags;
3226 const char *fontname2 = NULL;
3230 * Provide a default if given an empty or null font name.
3232 if (!fontname || !*fontname)
3233 fontname = "server:fixed";
3236 * Call the canonify_fontname function.
3238 fontname = unifont_do_prefix(fontname, &start, &end);
3239 for (i = start; i < end; i++) {
3240 fontname2 = unifont_types[i]->canonify_fontname
3241 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3246 return; /* font name not recognised */
3249 * Now look up the canonified font name in our index.
3252 struct fontinfo_realname_find f;
3253 f.realname = fontname2;
3255 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3259 * If we've found the font, and its size field is either
3260 * correct or zero (the latter indicating a scalable font),
3261 * then we're done. Otherwise, try looking up the original
3262 * font name instead.
3264 if (!info || (info->size != size && info->size != 0)) {
3265 struct fontinfo_realname_find f;
3266 f.realname = fontname;
3269 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3270 if (!info || info->size != size)
3271 return; /* font name not in our index */
3275 * Now we've got a fontinfo structure and a font size, so we
3276 * know everything we need to fill in all the fields in the
3279 unifontsel_select_font(fs, info, size, 0, TRUE);
3282 char *unifontsel_get_name(unifontsel *fontsel)
3284 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3290 if (fs->selected->size == 0) {
3291 name = fs->selected->fontclass->scale_fontname
3292 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3294 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3301 return dupcat(fs->selected->fontclass->prefix, ":",
3302 fs->selected->realname, NULL);
3305 #endif /* GTK_CHECK_VERSION(2,0,0) */