2 * Unified font management for GTK.
4 * PuTTY is willing to use both old-style X server-side bitmap
5 * fonts _and_ GTK2/Pango client-side fonts. This requires us to
6 * do a bit of work to wrap the two wildly different APIs into
7 * forms the rest of the code can switch between seamlessly, and
8 * also requires a custom font selector capable of handling both
17 #if !GTK_CHECK_VERSION(3,0,0)
18 #include <gdk/gdkkeysyms.h>
21 #define MAY_REFER_TO_GTK_IN_HEADERS
25 #include "gtkcompat.h"
32 #include <X11/Xutil.h>
33 #include <X11/Xatom.h>
39 * - it would be nice to have a display of the current font name,
40 * and in particular whether it's client- or server-side,
41 * during the progress of the font selector.
44 #if !GLIB_CHECK_VERSION(1,3,7)
45 #define g_ascii_strcasecmp g_strcasecmp
46 #define g_ascii_strncasecmp g_strncasecmp
50 * Ad-hoc vtable mechanism to allow font structures to be
53 * Any instance of `unifont' used in the vtable functions will
54 * actually be the first element of a larger structure containing
55 * data specific to the subtype. This is permitted by the ISO C
56 * provision that one may safely cast between a pointer to a
57 * structure and a pointer to its first element.
60 #define FONTFLAG_CLIENTSIDE 0x0001
61 #define FONTFLAG_SERVERSIDE 0x0002
62 #define FONTFLAG_SERVERALIAS 0x0004
63 #define FONTFLAG_NONMONOSPACED 0x0008
65 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
67 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
68 const char *family, const char *charset,
69 const char *style, const char *stylekey,
71 const struct unifont_vtable *fontclass);
73 struct unifont_vtable {
75 * `Methods' of the `class'.
77 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
78 int shadowoffset, int shadowalways);
79 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
80 int bold, int shadowoffset, int shadowalways);
81 void (*destroy)(unifont *font);
82 int (*has_glyph)(unifont *font, wchar_t glyph);
83 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
84 int x, int y, const wchar_t *string, int len,
85 int wide, int bold, int cellwidth);
86 void (*enum_fonts)(GtkWidget *widget,
87 fontsel_add_entry callback, void *callback_ctx);
88 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
89 int *flags, int resolve_aliases);
90 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
93 * `Static data members' of the `class'.
100 /* ----------------------------------------------------------------------
101 * X11 font implementation, directly using Xlib calls. Conditioned out
102 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
103 * back end other than X).
106 static int x11font_has_glyph(unifont *font, wchar_t glyph);
107 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
108 int x, int y, const wchar_t *string, int len,
109 int wide, int bold, int cellwidth);
110 static unifont *x11font_create(GtkWidget *widget, const char *name,
112 int shadowoffset, int shadowalways);
113 static void x11font_destroy(unifont *font);
114 static void x11font_enum_fonts(GtkWidget *widget,
115 fontsel_add_entry callback, void *callback_ctx);
116 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
117 int *size, int *flags,
118 int resolve_aliases);
119 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
122 #ifdef DRAW_TEXT_CAIRO
123 struct cairo_cached_glyph {
124 cairo_surface_t *surface;
125 unsigned char *bitmap;
130 * Structure storing a single physical XFontStruct, plus associated
133 typedef struct x11font_individual {
134 /* The XFontStruct itself. */
138 * The `allocated' flag indicates whether we've tried to fetch
139 * this subfont already (thus distinguishing xfs==NULL because we
140 * haven't tried yet from xfs==NULL because we tried and failed,
141 * so that we don't keep trying and failing subsequently).
145 #ifdef DRAW_TEXT_CAIRO
147 * A cache of glyph bitmaps downloaded from the X server when
148 * we're in Cairo rendering mode. If glyphcache itself is
149 * non-NULL, then entries in [0,nglyphs) are expected to be
150 * initialised to either NULL or a bitmap pointer.
152 struct cairo_cached_glyph *glyphcache;
156 * X server paraphernalia for actually downloading the glyphs.
160 int pixwidth, pixheight, pixoriginx, pixoriginy;
163 * Paraphernalia for loading the resulting bitmaps into Cairo.
165 int rowsize, allsize, indexflip;
168 } x11font_individual;
173 * Individual physical X fonts. We store a number of these, for
174 * automatically guessed bold and wide variants.
176 x11font_individual fonts[4];
178 * `sixteen_bit' is true iff the font object is indexed by
179 * values larger than a byte. That is, this flag tells us
180 * whether we use XDrawString or XDrawString16, etc.
184 * `variable' is true iff the font is non-fixed-pitch. This
185 * enables some code which takes greater care over character
186 * positioning during text drawing.
190 * real_charset is the charset used when translating text into the
191 * font's internal encoding inside draw_text(). This need not be
192 * the same as the public_charset provided to the client; for
193 * example, public_charset might be CS_ISO8859_1 while
194 * real_charset is CS_ISO8859_1_X11.
198 * Data passed in to unifont_create().
200 int wide, bold, shadowoffset, shadowalways;
203 static const struct unifont_vtable x11font_vtable = {
205 NULL, /* no fallback fonts in X11 */
210 x11font_canonify_fontname,
211 x11font_scale_fontname,
215 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
217 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
218 Atom fontprop = XInternAtom(disp, "FONT", False);
220 if (XGetFontProperty(xfs, fontprop, &ret)) {
221 char *name = XGetAtomName(disp, (Atom)ret);
222 if (name && name[0] == '-') {
223 const char *strings[13];
224 char *dupname, *extrafree = NULL, *ret;
228 p = q = dupname = dupstr(name); /* skip initial minus */
231 while (*p && nstr < lenof(strings)) {
234 strings[nstr++] = p+1;
239 if (nstr < lenof(strings)) {
241 return NULL; /* XLFD was malformed */
248 /* 4 is `wideness', which obviously may have changed. */
249 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
250 strings[4] = strings[5] = "*";
251 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
254 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
255 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
256 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
257 "-", strings[ 9], "-", strings[10], "-", strings[11],
258 "-", strings[12], NULL);
268 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
274 return XTextWidth16(xfs, &space, 1);
276 return XTextWidth(xfs, "0", 1);
280 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
285 * Not to be confused with x11font_has_glyph, which is a method of
286 * the x11font 'class' and hence takes a unifont as argument. This
287 * is the low-level function which grubs about in an actual
288 * XFontStruct to see if a given glyph exists.
290 * We must do this ourselves rather than letting Xlib's
291 * XTextExtents16 do the job, because XTextExtents will helpfully
292 * substitute the font's default_char for any missing glyph and
293 * not tell us it did so, which precisely won't help us find out
294 * which glyphs _are_ missing.
296 * The man page for XQueryFont is rather confusing about how the
297 * per_char array in the XFontStruct is laid out, because it gives
298 * formulae for determining the two-byte X character code _from_
299 * an index into the per_char array. Going the other way, it's
302 * The valid character codes have byte1 between min_byte1 and
303 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
304 * max_char_or_byte2 inclusive. This gives a rectangle of size
305 * (max_byte2-min_byte1+1) by
306 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
307 * rectangle encoded in the per_char array. Hence, given a
308 * character code which is valid in the sense that it falls
309 * somewhere in that rectangle, its index in per_char is given by
312 * x = byte2 - min_char_or_byte2
313 * y = byte1 - min_byte1
314 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
316 * If min_byte1 and min_byte2 are both zero, that's a special case
317 * which can be treated as if min_byte2 was 1 instead, i.e. the
318 * per_char array just runs from min_char_or_byte2 to
319 * max_char_or_byte2 inclusive, and byte1 should always be zero.
322 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
325 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
326 index = byte2 - xfs->min_char_or_byte2;
328 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
330 index = ((byte2 - xfs->min_char_or_byte2) +
331 ((byte1 - xfs->min_byte1) *
332 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
335 if (!xfs->per_char) /* per_char NULL => everything in range exists */
338 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
339 xfs->per_char[index].width > 0);
342 static unifont *x11font_create(GtkWidget *widget, const char *name,
344 int shadowoffset, int shadowalways)
346 struct x11font *xfont;
348 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
349 Atom charset_registry, charset_encoding, spacing;
350 unsigned long registry_ret, encoding_ret, spacing_ret;
351 int pubcs, realcs, sixteen_bit, variable;
354 xfs = XLoadQueryFont(disp, name);
358 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
359 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
361 pubcs = realcs = CS_NONE;
365 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
366 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
368 reg = XGetAtomName(disp, (Atom)registry_ret);
369 enc = XGetAtomName(disp, (Atom)encoding_ret);
371 char *encoding = dupcat(reg, "-", enc, NULL);
372 pubcs = realcs = charset_from_xenc(encoding);
375 * iso10646-1 is the only wide font encoding we
376 * support. In this case, we expect clients to give us
377 * UTF-8, which this module must internally convert
378 * into 16-bit Unicode.
380 if (!strcasecmp(encoding, "iso10646-1")) {
382 pubcs = realcs = CS_UTF8;
386 * Hack for X line-drawing characters: if the primary font
387 * is encoded as ISO-8859-1, and has valid glyphs in the
388 * low character positions, it is assumed that those
389 * glyphs are the VT100 line-drawing character set.
391 if (pubcs == CS_ISO8859_1) {
393 for (ch = 1; ch < 32; ch++)
394 if (!x11_font_has_glyph(xfs, 0, ch))
397 realcs = CS_ISO8859_1_X11;
404 spacing = XInternAtom(disp, "SPACING", False);
405 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
407 spc = XGetAtomName(disp, (Atom)spacing_ret);
409 if (spc && strchr("CcMm", spc[0]))
413 xfont = snew(struct x11font);
414 xfont->u.vt = &x11font_vtable;
415 xfont->u.width = x11_font_width(xfs, sixteen_bit);
416 xfont->u.ascent = xfs->ascent;
417 xfont->u.descent = xfs->descent;
418 xfont->u.height = xfont->u.ascent + xfont->u.descent;
419 xfont->u.public_charset = pubcs;
420 xfont->u.want_fallback = TRUE;
422 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
423 #elif defined DRAW_TEXT_CAIRO
424 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
426 #error No drawtype available at all
428 xfont->real_charset = realcs;
429 xfont->sixteen_bit = sixteen_bit;
430 xfont->variable = variable;
433 xfont->shadowoffset = shadowoffset;
434 xfont->shadowalways = shadowalways;
436 for (i = 0; i < lenof(xfont->fonts); i++) {
437 xfont->fonts[i].xfs = NULL;
438 xfont->fonts[i].allocated = FALSE;
439 #ifdef DRAW_TEXT_CAIRO
440 xfont->fonts[i].glyphcache = NULL;
441 xfont->fonts[i].nglyphs = 0;
442 xfont->fonts[i].pixmap = None;
443 xfont->fonts[i].gc = None;
446 xfont->fonts[0].xfs = xfs;
447 xfont->fonts[0].allocated = TRUE;
449 return (unifont *)xfont;
452 static void x11font_destroy(unifont *font)
454 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
455 struct x11font *xfont = (struct x11font *)font;
458 for (i = 0; i < lenof(xfont->fonts); i++) {
459 if (xfont->fonts[i].xfs)
460 XFreeFont(disp, xfont->fonts[i].xfs);
461 #ifdef DRAW_TEXT_CAIRO
462 if (xfont->fonts[i].gc != None)
463 XFreeGC(disp, xfont->fonts[i].gc);
464 if (xfont->fonts[i].pixmap != None)
465 XFreePixmap(disp, xfont->fonts[i].pixmap);
466 if (xfont->fonts[i].glyphcache) {
468 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
469 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
470 sfree(xfont->fonts[i].glyphcache[j].bitmap);
472 sfree(xfont->fonts[i].glyphcache);
479 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
481 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
482 char *derived_name = x11_guess_derived_font_name
483 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
484 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
485 xfont->fonts[sfid].allocated = TRUE;
487 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
490 static int x11font_has_glyph(unifont *font, wchar_t glyph)
492 struct x11font *xfont = (struct x11font *)font;
494 if (xfont->sixteen_bit) {
496 * This X font has 16-bit character indices, which means
497 * we can directly use our Unicode input value.
499 return x11_font_has_glyph(xfont->fonts[0].xfs,
500 glyph >> 8, glyph & 0xFF);
503 * This X font has 8-bit indices, so we must convert to the
504 * appropriate character set.
507 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
508 sbstring, 2, "", NULL, NULL);
509 if (sblen == 0 || !sbstring[0])
510 return FALSE; /* not even in the charset */
512 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
513 (unsigned char)sbstring[0]);
517 #if !GTK_CHECK_VERSION(2,0,0)
518 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
519 #elif GTK_CHECK_VERSION(3,0,0)
520 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
523 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
524 const void *vstring, int start, int length)
526 const XChar2b *string = (const XChar2b *)vstring;
527 return XTextWidth16(xfi->xfs, string+start, length);
530 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
531 const void *vstring, int start, int length)
533 const char *string = (const char *)vstring;
534 return XTextWidth(xfi->xfs, string+start, length);
538 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
540 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
541 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
544 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
545 x11font_individual *xfi, int x, int y,
546 const void *vstring, int start, int length)
548 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
549 const XChar2b *string = (const XChar2b *)vstring;
550 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
551 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
554 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
555 x11font_individual *xfi, int x, int y,
556 const void *vstring, int start, int length)
558 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
559 const char *string = (const char *)vstring;
560 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
561 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
565 #ifdef DRAW_TEXT_CAIRO
566 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
568 if (xfi->pixmap == None) {
569 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
571 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
572 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
575 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
577 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
578 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
579 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
581 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
583 xfi->allsize = xfi->rowsize * xfi->pixheight;
587 * Test host endianness and use it to set xfi->indexflip,
588 * which is XORed into our left-shift counts in order to
589 * implement the CAIRO_FORMAT_A1 specification, in which
590 * each bitmap byte is oriented LSB-first on little-endian
591 * platforms and MSB-first on big-endian ones.
593 * This is the same technique Cairo itself uses to test
594 * endianness, so hopefully it'll work in any situation
595 * where Cairo is usable at all.
597 static const int endianness_test = 1;
598 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
601 xfi->pixmap = XCreatePixmap
603 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
604 xfi->pixwidth, xfi->pixheight, 1);
605 gcvals.foreground = WhitePixel(disp, widgetscr);
606 gcvals.background = BlackPixel(disp, widgetscr);
607 gcvals.font = xfi->xfs->fid;
608 xfi->gc = XCreateGC(disp, xfi->pixmap,
609 GCForeground | GCBackground | GCFont, &gcvals);
613 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
617 unsigned char *bitmap;
618 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
620 bitmap = snewn(xfi->allsize, unsigned char);
621 memset(bitmap, 0, xfi->allsize);
623 image = XGetImage(disp, xfi->pixmap, 0, 0,
624 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
625 for (y = 0; y < xfi->pixheight; y++) {
626 for (x = 0; x < xfi->pixwidth; x++) {
627 unsigned long pixel = XGetPixel(image, x, y);
629 int byteindex = y * xfi->rowsize + x/8;
630 int bitindex = (x & 7) ^ xfi->indexflip;
631 bitmap[byteindex] |= 1U << bitindex;
635 XDestroyImage(image);
637 if (xfi->nglyphs <= glyphindex) {
638 /* Round up to the next multiple of 256 on the general
639 * principle that Unicode characters come in contiguous blocks
640 * often used together */
641 int old_nglyphs = xfi->nglyphs;
642 xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
643 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
644 struct cairo_cached_glyph);
646 while (old_nglyphs < xfi->nglyphs) {
647 xfi->glyphcache[old_nglyphs].surface = NULL;
648 xfi->glyphcache[old_nglyphs].bitmap = NULL;
652 xfi->glyphcache[glyphindex].bitmap = bitmap;
653 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
654 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
657 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
658 x11font_individual *xfi, int x, int y,
661 if (xfi->glyphcache[glyphindex].surface) {
662 cairo_mask_surface(ctx->u.cairo.cr,
663 xfi->glyphcache[glyphindex].surface,
664 x - xfi->pixoriginx, y - xfi->pixoriginy);
668 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
669 x11font_individual *xfi, int x, int y,
670 const void *vstring, int start, int length)
672 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
673 const XChar2b *string = (const XChar2b *)vstring + start;
675 for (i = 0; i < length; i++) {
676 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
677 int glyphindex = (256 * (unsigned char)string[i].byte1 +
678 (unsigned char)string[i].byte2);
679 if (glyphindex >= xfi->nglyphs ||
680 !xfi->glyphcache[glyphindex].surface) {
681 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
682 xfi->pixoriginx, xfi->pixoriginy,
684 x11font_cairo_cache_glyph(xfi, glyphindex);
686 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
687 x += XTextWidth16(xfi->xfs, string+i, 1);
692 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
693 x11font_individual *xfi, int x, int y,
694 const void *vstring, int start, int length)
696 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
697 const char *string = (const char *)vstring + start;
699 for (i = 0; i < length; i++) {
700 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
701 int glyphindex = (unsigned char)string[i];
702 if (glyphindex >= xfi->nglyphs ||
703 !xfi->glyphcache[glyphindex].surface) {
704 XDrawImageString(disp, xfi->pixmap, xfi->gc,
705 xfi->pixoriginx, xfi->pixoriginy,
707 x11font_cairo_cache_glyph(xfi, glyphindex);
709 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
710 x += XTextWidth(xfi->xfs, string+i, 1);
714 #endif /* DRAW_TEXT_CAIRO */
716 struct x11font_drawfuncs {
717 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
718 const void *vstring, int start, int length);
719 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
720 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
721 const void *vstring, int start, int length);
725 * This array has two entries per compiled-in drawtype; of each pair,
726 * the first is for an 8-bit font and the second for 16-bit.
728 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
743 #ifdef DRAW_TEXT_CAIRO
748 x11font_cairo_draw_8,
750 /* [3] cairo, 16-bit */
754 x11font_cairo_draw_16,
759 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
760 unifont_drawctx *ctx,
761 x11font_individual *xfi, int x, int y,
762 const void *string, int nchars,
764 int fontvariable, int cellwidth)
766 int start = 0, step, nsteps, centre;
770 * In a variable-pitch font, we draw one character at a
771 * time, and centre it in the character cell.
778 * In a fixed-pitch font, we can draw the whole lot in one go.
785 dfns->setup(ctx, xfi);
787 while (nsteps-- > 0) {
790 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
792 dfns->draw(ctx, xfi, X, y, string, start, step);
794 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
801 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
802 int x, int y, const wchar_t *string, int len,
803 int wide, int bold, int cellwidth)
805 struct x11font *xfont = (struct x11font *)font;
807 int shadowoffset = 0;
808 int mult = (wide ? 2 : 1);
809 int index = 2 * (int)ctx->type;
815 * Decide which subfont we're using, and whether we have to
818 if (xfont->shadowalways && bold) {
819 shadowoffset = xfont->shadowoffset;
822 sfid = 2 * wide + bold;
823 if (!xfont->fonts[sfid].allocated)
824 x11_alloc_subfont(xfont, sfid);
825 if (bold && !xfont->fonts[sfid].xfs) {
827 shadowoffset = xfont->shadowoffset;
828 sfid = 2 * wide + bold;
829 if (!xfont->fonts[sfid].allocated)
830 x11_alloc_subfont(xfont, sfid);
833 if (!xfont->fonts[sfid].xfs)
834 return; /* we've tried our best, but no luck */
836 if (xfont->sixteen_bit) {
838 * This X font has 16-bit character indices, which means
839 * we can directly use our Unicode input string.
844 xcs = snewn(len, XChar2b);
845 for (i = 0; i < len; i++) {
846 xcs[i].byte1 = string[i] >> 8;
847 xcs[i].byte2 = string[i];
850 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
851 &xfont->fonts[sfid], x, y,
852 xcs, len, shadowoffset,
853 xfont->variable, cellwidth * mult);
857 * This X font has 8-bit indices, so we must convert to the
858 * appropriate character set.
860 char *sbstring = snewn(len+1, char);
861 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
862 sbstring, len+1, ".", NULL, NULL);
863 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
864 &xfont->fonts[sfid], x, y,
865 sbstring, sblen, shadowoffset,
866 xfont->variable, cellwidth * mult);
871 static void x11font_enum_fonts(GtkWidget *widget,
872 fontsel_add_entry callback, void *callback_ctx)
874 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
877 int nnames, i, max, tmpsize;
881 fontnames = XListFonts(disp, "*", max, &nnames);
883 XFreeFontNames(fontnames);
891 for (i = 0; i < nnames; i++) {
892 if (fontnames[i][0] == '-') {
894 * Dismember an XLFD and convert it into the format
895 * we'll be using in the font selector.
897 char *components[14];
898 char *p, *font, *style, *stylekey, *charset;
899 int j, weightkey, slantkey, setwidthkey;
900 int thistmpsize, fontsize, flags;
902 thistmpsize = 4 * strlen(fontnames[i]) + 256;
903 if (tmpsize < thistmpsize) {
904 tmpsize = thistmpsize;
905 tmp = sresize(tmp, tmpsize, char);
907 strcpy(tmp, fontnames[i]);
910 for (j = 0; j < 14; j++) {
914 while (*p && *p != '-')
920 * Font name is made up of fields 0 and 1, in reverse
921 * order with parentheses. (This is what the GTK 1.2 X
922 * font selector does, and it seems to come out
923 * looking reasonably sensible.)
926 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
929 * Charset is made up of fields 12 and 13.
932 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
935 * Style is a mixture of quite a lot of the fields,
936 * with some strange formatting.
939 p += sprintf(p, "%s", components[2][0] ? components[2] :
941 if (!g_ascii_strcasecmp(components[3], "i"))
942 p += sprintf(p, " italic");
943 else if (!g_ascii_strcasecmp(components[3], "o"))
944 p += sprintf(p, " oblique");
945 else if (!g_ascii_strcasecmp(components[3], "ri"))
946 p += sprintf(p, " reverse italic");
947 else if (!g_ascii_strcasecmp(components[3], "ro"))
948 p += sprintf(p, " reverse oblique");
949 else if (!g_ascii_strcasecmp(components[3], "ot"))
950 p += sprintf(p, " other-slant");
951 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
952 p += sprintf(p, " %s", components[4]);
953 if (!g_ascii_strcasecmp(components[10], "m"))
954 p += sprintf(p, " [M]");
955 if (!g_ascii_strcasecmp(components[10], "c"))
956 p += sprintf(p, " [C]");
957 if (components[5][0])
958 p += sprintf(p, " %s", components[5]);
961 * Style key is the same stuff as above, but with a
962 * couple of transformations done on it to make it
963 * sort more sensibly.
967 if (!g_ascii_strcasecmp(components[2], "medium") ||
968 !g_ascii_strcasecmp(components[2], "regular") ||
969 !g_ascii_strcasecmp(components[2], "normal") ||
970 !g_ascii_strcasecmp(components[2], "book"))
972 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
973 !g_ascii_strncasecmp(components[2], "semi", 4))
977 if (!g_ascii_strcasecmp(components[3], "r"))
979 else if (!g_ascii_strncasecmp(components[3], "r", 1))
983 if (!g_ascii_strcasecmp(components[4], "normal"))
988 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
990 (int)strlen(components[2]), components[2],
992 (int)strlen(components[3]), components[3],
994 (int)strlen(components[4]), components[4],
995 (int)strlen(components[10]), components[10],
996 (int)strlen(components[5]), components[5]);
998 assert(p - tmp < thistmpsize);
1001 * Size is in pixels, for our application, so we
1002 * derive it directly from the pixel size field,
1005 fontsize = atoi(components[6]);
1008 * Flags: we need to know whether this is a monospaced
1009 * font, which we do by examining the spacing field
1012 flags = FONTFLAG_SERVERSIDE;
1013 if (!strchr("CcMm", components[10][0]))
1014 flags |= FONTFLAG_NONMONOSPACED;
1017 * Not sure why, but sometimes the X server will
1018 * deliver dummy font types in which fontsize comes
1019 * out as zero. Filter those out.
1022 callback(callback_ctx, fontnames[i], font, charset,
1023 style, stylekey, fontsize, flags, &x11font_vtable);
1026 * This isn't an XLFD, so it must be an alias.
1027 * Transmit it with mostly null data.
1029 * It would be nice to work out if it's monospaced
1030 * here, but at the moment I can't see that being
1031 * anything but computationally hideous. Ah well.
1033 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1034 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1037 XFreeFontNames(fontnames);
1040 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1041 int *size, int *flags,
1042 int resolve_aliases)
1045 * When given an X11 font name to try to make sense of for a
1046 * font selector, we must attempt to load it (to see if it
1047 * exists), and then canonify it by extracting its FONT
1048 * property, which should give its full XLFD even if what we
1049 * originally had was a wildcard.
1051 * However, we must carefully avoid canonifying font
1052 * _aliases_, unless specifically asked to, because the font
1053 * selector treats them as worthwhile in their own right.
1056 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1057 Atom fontprop, fontprop2;
1060 xfs = XLoadQueryFont(disp, name);
1063 return NULL; /* didn't make sense to us, sorry */
1065 fontprop = XInternAtom(disp, "FONT", False);
1067 if (XGetFontProperty(xfs, fontprop, &ret)) {
1068 char *newname = XGetAtomName(disp, (Atom)ret);
1070 unsigned long fsize = 12;
1072 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1073 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1075 XFreeFont(disp, xfs);
1077 if (name[0] == '-' || resolve_aliases)
1078 *flags = FONTFLAG_SERVERSIDE;
1080 *flags = FONTFLAG_SERVERALIAS;
1082 return dupstr(name[0] == '-' || resolve_aliases ?
1088 XFreeFont(disp, xfs);
1090 return NULL; /* something went wrong */
1093 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1096 return NULL; /* shan't */
1099 #endif /* NOT_X_WINDOWS */
1101 #if GTK_CHECK_VERSION(2,0,0)
1103 /* ----------------------------------------------------------------------
1104 * Pango font implementation (for GTK 2 only).
1107 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1108 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1111 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1112 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1113 int x, int y, const wchar_t *string, int len,
1114 int wide, int bold, int cellwidth);
1115 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1117 int shadowoffset, int shadowalways);
1118 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1120 int shadowoffset, int shadowalways);
1121 static void pangofont_destroy(unifont *font);
1122 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1123 void *callback_ctx);
1124 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1125 int *size, int *flags,
1126 int resolve_aliases);
1127 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1135 PangoFontDescription *desc;
1138 * The containing widget.
1142 * Data passed in to unifont_create().
1144 int bold, shadowoffset, shadowalways;
1146 * Cache of character widths, indexed by Unicode code point. In
1147 * pixels; -1 means we haven't asked Pango about this character
1151 unsigned nwidthcache;
1154 static const struct unifont_vtable pangofont_vtable = {
1156 pangofont_create_fallback,
1158 pangofont_has_glyph,
1159 pangofont_draw_text,
1160 pangofont_enum_fonts,
1161 pangofont_canonify_fontname,
1162 pangofont_scale_fontname,
1167 * This function is used to rigorously validate a
1168 * PangoFontDescription. Later versions of Pango have a nasty
1169 * habit of accepting _any_ old string as input to
1170 * pango_font_description_from_string and returning a font
1171 * description which can actually be used to display text, even if
1172 * they have to do it by falling back to their most default font.
1173 * This is doubtless helpful in some situations, but not here,
1174 * because we need to know if a Pango font string actually _makes
1175 * sense_ in order to fall back to treating it as an X font name
1176 * if it doesn't. So we check that the font family is actually one
1177 * supported by Pango.
1179 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1180 PangoFontDescription *desc)
1182 #ifndef PANGO_PRE_1POINT6
1185 PangoFontFamily **families;
1186 int i, nfamilies, matched;
1189 * Ask Pango for a list of font families, and iterate through
1190 * them to see if one of them matches the family in the
1191 * PangoFontDescription.
1193 #ifndef PANGO_PRE_1POINT6
1194 map = pango_context_get_font_map(ctx);
1197 pango_font_map_list_families(map, &families, &nfamilies);
1199 pango_context_list_families(ctx, &families, &nfamilies);
1203 for (i = 0; i < nfamilies; i++) {
1204 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1205 pango_font_description_get_family(desc))) {
1215 static unifont *pangofont_create_internal(GtkWidget *widget,
1217 PangoFontDescription *desc,
1219 int shadowoffset, int shadowalways)
1221 struct pangofont *pfont;
1222 #ifndef PANGO_PRE_1POINT6
1226 PangoFontMetrics *metrics;
1228 #ifndef PANGO_PRE_1POINT6
1229 map = pango_context_get_font_map(ctx);
1231 pango_font_description_free(desc);
1234 fset = pango_font_map_load_fontset(map, ctx, desc,
1235 pango_context_get_language(ctx));
1237 fset = pango_context_load_fontset(ctx, desc,
1238 pango_context_get_language(ctx));
1241 pango_font_description_free(desc);
1244 metrics = pango_fontset_get_metrics(fset);
1246 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1247 pango_font_description_free(desc);
1248 g_object_unref(fset);
1252 pfont = snew(struct pangofont);
1253 pfont->u.vt = &pangofont_vtable;
1255 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1256 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1257 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1258 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1259 pfont->u.want_fallback = FALSE;
1260 #ifdef DRAW_TEXT_CAIRO
1261 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1262 #elif defined DRAW_TEXT_GDK
1263 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1265 #error No drawtype available at all
1267 /* The Pango API is hardwired to UTF-8 */
1268 pfont->u.public_charset = CS_UTF8;
1271 pfont->widget = widget;
1273 pfont->shadowoffset = shadowoffset;
1274 pfont->shadowalways = shadowalways;
1275 pfont->widthcache = NULL;
1276 pfont->nwidthcache = 0;
1278 pango_font_metrics_unref(metrics);
1280 return (unifont *)pfont;
1283 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1285 int shadowoffset, int shadowalways)
1288 PangoFontDescription *desc;
1290 desc = pango_font_description_from_string(name);
1293 ctx = gtk_widget_get_pango_context(widget);
1295 pango_font_description_free(desc);
1298 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1299 pango_font_description_free(desc);
1302 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1303 shadowoffset, shadowalways);
1306 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1308 int shadowoffset, int shadowalways)
1311 PangoFontDescription *desc;
1313 desc = pango_font_description_from_string("Monospace");
1316 ctx = gtk_widget_get_pango_context(widget);
1318 pango_font_description_free(desc);
1321 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1322 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1323 shadowoffset, shadowalways);
1326 static void pangofont_destroy(unifont *font)
1328 struct pangofont *pfont = (struct pangofont *)font;
1329 pango_font_description_free(pfont->desc);
1330 sfree(pfont->widthcache);
1331 g_object_unref(pfont->fset);
1335 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1336 wchar_t uchr, const char *utfchr, int utflen)
1339 * Here we check whether a character has the same width as the
1340 * character cell it'll be drawn in. Because profiling showed that
1341 * pango_layout_get_pixel_extents() was a huge bottleneck when we
1342 * were calling it every time we needed to know this, we instead
1343 * call it only on characters we don't already know about, and
1344 * cache the results.
1347 if ((unsigned)uchr >= pfont->nwidthcache) {
1348 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1349 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1350 while (pfont->nwidthcache < newsize)
1351 pfont->widthcache[pfont->nwidthcache++] = -1;
1354 if (pfont->widthcache[uchr] < 0) {
1355 PangoRectangle rect;
1356 pango_layout_set_text(layout, utfchr, utflen);
1357 pango_layout_get_pixel_extents(layout, NULL, &rect);
1358 pfont->widthcache[uchr] = rect.width;
1361 return pfont->widthcache[uchr];
1364 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1366 /* Pango implements font fallback, so assume it has everything */
1370 #ifdef DRAW_TEXT_GDK
1371 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1372 gint x, gint y, PangoLayout *layout)
1374 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1378 #ifdef DRAW_TEXT_CAIRO
1379 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1380 gint x, gint y, PangoLayout *layout)
1382 cairo_move_to(ctx->u.cairo.cr, x, y);
1383 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1387 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1388 int x, int y, const wchar_t *string, int len,
1389 int wide, int bold, int cellwidth)
1391 struct pangofont *pfont = (struct pangofont *)font;
1392 PangoLayout *layout;
1393 PangoRectangle rect;
1394 char *utfstring, *utfptr;
1396 int shadowbold = FALSE;
1397 void (*draw_layout)(unifont_drawctx *ctx,
1398 gint x, gint y, PangoLayout *layout) = NULL;
1400 #ifdef DRAW_TEXT_GDK
1401 if (ctx->type == DRAWTYPE_GDK) {
1402 draw_layout = pango_gdk_draw_layout;
1405 #ifdef DRAW_TEXT_CAIRO
1406 if (ctx->type == DRAWTYPE_CAIRO) {
1407 draw_layout = pango_cairo_draw_layout;
1414 y -= pfont->u.ascent;
1416 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1417 pango_layout_set_font_description(layout, pfont->desc);
1418 if (bold > pfont->bold) {
1419 if (pfont->shadowalways)
1422 PangoFontDescription *desc2 =
1423 pango_font_description_copy_static(pfont->desc);
1424 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1425 pango_layout_set_font_description(layout, desc2);
1430 * Pango always expects UTF-8, so convert the input wide character
1433 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1434 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1435 utfstring, len*6+1, ".", NULL, NULL);
1438 while (utflen > 0) {
1442 * We want to display every character from this string in
1443 * the centre of its own character cell. In the worst case,
1444 * this requires a separate text-drawing call for each
1445 * character; but in the common case where the font is
1446 * properly fixed-width, we can draw many characters in one
1447 * go which is much faster.
1449 * This still isn't really ideal. If you look at what
1450 * happens in the X protocol as a result of all of this, you
1451 * find - naturally enough - that each call to
1452 * gdk_draw_layout() generates a separate set of X RENDER
1453 * operations involving creating a picture, setting a clip
1454 * rectangle, doing some drawing and undoing the whole lot.
1455 * In an ideal world, we should _always_ be able to turn the
1456 * contents of this loop into a single RenderCompositeGlyphs
1457 * operation which internally specifies inter-character
1458 * deltas to get the spacing right, which would give us full
1459 * speed _even_ in the worst case of a non-fixed-width font.
1460 * However, Pango's architecture and documentation are so
1461 * unhelpful that I have no idea how if at all to persuade
1466 * Start by extracting a single UTF-8 character from the
1470 while (clen < utflen &&
1471 (unsigned char)utfptr[clen] >= 0x80 &&
1472 (unsigned char)utfptr[clen] < 0xC0)
1476 if (is_rtl(string[0]) ||
1477 pangofont_char_width(layout, pfont, string[n-1],
1478 utfptr, clen) != cellwidth) {
1480 * If this character is a right-to-left one, or has an
1481 * unusual width, then we must display it on its own.
1485 * Try to amalgamate a contiguous string of characters
1486 * with the expected sensible width, for the common case
1487 * in which we're using a monospaced font and everything
1488 * works as expected.
1490 while (clen < utflen) {
1492 clen++; /* skip UTF-8 introducer byte */
1493 while (clen < utflen &&
1494 (unsigned char)utfptr[clen] >= 0x80 &&
1495 (unsigned char)utfptr[clen] < 0xC0)
1498 if (pangofont_char_width(layout, pfont,
1499 string[n-1], utfptr + oldclen,
1500 clen - oldclen) != cellwidth) {
1508 pango_layout_set_text(layout, utfptr, clen);
1509 pango_layout_get_pixel_extents(layout, NULL, &rect);
1512 x + (n*cellwidth - rect.width)/2,
1513 y + (pfont->u.height - rect.height)/2, layout);
1516 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1517 y + (pfont->u.height - rect.height)/2, layout);
1527 g_object_unref(layout);
1531 * Dummy size value to be used when converting a
1532 * PangoFontDescription of a scalable font to a string for
1535 #define PANGO_DUMMY_SIZE 12
1537 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1541 #ifndef PANGO_PRE_1POINT6
1544 PangoFontFamily **families;
1547 ctx = gtk_widget_get_pango_context(widget);
1552 * Ask Pango for a list of font families, and iterate through
1555 #ifndef PANGO_PRE_1POINT6
1556 map = pango_context_get_font_map(ctx);
1559 pango_font_map_list_families(map, &families, &nfamilies);
1561 pango_context_list_families(ctx, &families, &nfamilies);
1563 for (i = 0; i < nfamilies; i++) {
1564 PangoFontFamily *family = families[i];
1565 const char *familyname;
1567 PangoFontFace **faces;
1571 * Set up our flags for this font family, and get the name
1574 flags = FONTFLAG_CLIENTSIDE;
1575 #ifndef PANGO_PRE_1POINT4
1577 * In very early versions of Pango, we can't tell
1578 * monospaced fonts from non-monospaced.
1580 if (!pango_font_family_is_monospace(family))
1581 flags |= FONTFLAG_NONMONOSPACED;
1583 familyname = pango_font_family_get_name(family);
1586 * Go through the available font faces in this family.
1588 pango_font_family_list_faces(family, &faces, &nfaces);
1589 for (j = 0; j < nfaces; j++) {
1590 PangoFontFace *face = faces[j];
1591 PangoFontDescription *desc;
1592 const char *facename;
1594 int k, nsizes, dummysize;
1597 * Get the face name string.
1599 facename = pango_font_face_get_face_name(face);
1602 * Set up a font description with what we've got so
1603 * far. We'll fill in the size field manually and then
1604 * call pango_font_description_to_string() to give the
1605 * full real name of the specific font.
1607 desc = pango_font_face_describe(face);
1610 * See if this font has a list of specific sizes.
1612 #ifndef PANGO_PRE_1POINT4
1613 pango_font_face_list_sizes(face, &sizes, &nsizes);
1616 * In early versions of Pango, that call wasn't
1617 * supported; we just have to assume everything is
1624 * Write a single entry with a dummy size.
1626 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1632 * If so, go through them one by one.
1634 for (k = 0; k < nsizes; k++) {
1638 pango_font_description_set_size(desc, sizes[k]);
1640 fullname = pango_font_description_to_string(desc);
1643 * Construct the sorting key for font styles.
1649 n = pango_font_description_get_weight(desc);
1650 /* Weight: normal, then lighter, then bolder */
1651 if (n <= PANGO_WEIGHT_NORMAL)
1652 n = PANGO_WEIGHT_NORMAL - n;
1653 p += sprintf(p, "%4d", n);
1655 n = pango_font_description_get_style(desc);
1656 p += sprintf(p, " %2d", n);
1658 n = pango_font_description_get_stretch(desc);
1659 /* Stretch: closer to normal sorts earlier */
1660 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1661 (n < PANGO_STRETCH_NORMAL);
1662 p += sprintf(p, " %2d", n);
1664 n = pango_font_description_get_variant(desc);
1665 p += sprintf(p, " %2d", n);
1670 * Got everything. Hand off to the callback.
1671 * (The charset string is NULL, because only
1672 * server-side X fonts use it.)
1674 callback(callback_ctx, fullname, familyname, NULL, facename,
1676 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1677 flags, &pangofont_vtable);
1681 if (sizes != &dummysize)
1684 pango_font_description_free(desc);
1691 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1692 int *size, int *flags,
1693 int resolve_aliases)
1696 * When given a Pango font name to try to make sense of for a
1697 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1698 * extract its original size (in pixels) into the `size' field.
1701 #ifndef PANGO_PRE_1POINT6
1704 PangoFontDescription *desc;
1706 PangoFontMetrics *metrics;
1707 char *newname, *retname;
1709 desc = pango_font_description_from_string(name);
1712 ctx = gtk_widget_get_pango_context(widget);
1714 pango_font_description_free(desc);
1717 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1718 pango_font_description_free(desc);
1721 #ifndef PANGO_PRE_1POINT6
1722 map = pango_context_get_font_map(ctx);
1724 pango_font_description_free(desc);
1727 fset = pango_font_map_load_fontset(map, ctx, desc,
1728 pango_context_get_language(ctx));
1730 fset = pango_context_load_fontset(ctx, desc,
1731 pango_context_get_language(ctx));
1734 pango_font_description_free(desc);
1737 metrics = pango_fontset_get_metrics(fset);
1739 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1740 pango_font_description_free(desc);
1741 g_object_unref(fset);
1745 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1746 *flags = FONTFLAG_CLIENTSIDE;
1747 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1748 newname = pango_font_description_to_string(desc);
1749 retname = dupstr(newname);
1752 pango_font_metrics_unref(metrics);
1753 pango_font_description_free(desc);
1754 g_object_unref(fset);
1759 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1762 PangoFontDescription *desc;
1763 char *newname, *retname;
1765 desc = pango_font_description_from_string(name);
1768 pango_font_description_set_size(desc, size * PANGO_SCALE);
1769 newname = pango_font_description_to_string(desc);
1770 retname = dupstr(newname);
1772 pango_font_description_free(desc);
1777 #endif /* GTK_CHECK_VERSION(2,0,0) */
1779 /* ----------------------------------------------------------------------
1780 * Outermost functions which do the vtable dispatch.
1784 * Complete list of font-type subclasses. Listed in preference
1785 * order for unifont_create(). (That is, in the extremely unlikely
1786 * event that the same font name is valid as both a Pango and an
1787 * X11 font, it will be interpreted as the former in the absence
1788 * of an explicit type-disambiguating prefix.)
1790 * The 'multifont' subclass is omitted here, as discussed above.
1792 static const struct unifont_vtable *unifont_types[] = {
1793 #if GTK_CHECK_VERSION(2,0,0)
1796 #ifndef NOT_X_WINDOWS
1802 * Function which takes a font name and processes the optional
1803 * scheme prefix. Returns the tail of the font name suitable for
1804 * passing to individual font scheme functions, and also provides
1805 * a subrange of the unifont_types[] array above.
1807 * The return values `start' and `end' denote a half-open interval
1808 * in unifont_types[]; that is, the correct way to iterate over
1811 * for (i = start; i < end; i++) {...}
1813 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1815 int colonpos = strcspn(name, ":");
1818 if (name[colonpos]) {
1820 * There's a colon prefix on the font name. Use it to work
1821 * out which subclass to use.
1823 for (i = 0; i < lenof(unifont_types); i++) {
1824 if (strlen(unifont_types[i]->prefix) == colonpos &&
1825 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1828 return name + colonpos + 1;
1832 * None matched, so return an empty scheme list to prevent
1833 * any scheme from being called at all.
1836 return name + colonpos + 1;
1839 * No colon prefix, so just use all the subclasses.
1842 *end = lenof(unifont_types);
1847 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1848 int bold, int shadowoffset, int shadowalways)
1852 name = unifont_do_prefix(name, &start, &end);
1854 for (i = start; i < end; i++) {
1855 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1856 shadowoffset, shadowalways);
1860 return NULL; /* font not found in any scheme */
1863 void unifont_destroy(unifont *font)
1865 font->vt->destroy(font);
1868 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1869 int x, int y, const wchar_t *string, int len,
1870 int wide, int bold, int cellwidth)
1872 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1875 /* ----------------------------------------------------------------------
1876 * Multiple-font wrapper. This is a type of unifont which encapsulates
1877 * up to two other unifonts, permitting missing glyphs in the main
1878 * font to be filled in by a fallback font.
1880 * This is a type of unifont just like the previous two, but it has a
1881 * separate constructor which is manually called by the client, so it
1882 * doesn't appear in the list of available font types enumerated by
1883 * unifont_create. This means it's not used by unifontsel either, so
1884 * it doesn't need to support any methods except draw_text and
1888 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1889 int x, int y, const wchar_t *string, int len,
1890 int wide, int bold, int cellwidth);
1891 static void multifont_destroy(unifont *font);
1899 static const struct unifont_vtable multifont_vtable = {
1900 NULL, /* creation is done specially */
1904 multifont_draw_text,
1911 unifont *multifont_create(GtkWidget *widget, const char *name,
1913 int shadowoffset, int shadowalways)
1916 unifont *font, *fallback;
1917 struct multifont *mfont;
1919 font = unifont_create(widget, name, wide, bold,
1920 shadowoffset, shadowalways);
1925 if (font->want_fallback) {
1926 for (i = 0; i < lenof(unifont_types); i++) {
1927 if (unifont_types[i]->create_fallback) {
1928 fallback = unifont_types[i]->create_fallback
1929 (widget, font->height, wide, bold,
1930 shadowoffset, shadowalways);
1938 * Construct our multifont. Public members are all copied from the
1939 * primary font we're wrapping.
1941 mfont = snew(struct multifont);
1942 mfont->u.vt = &multifont_vtable;
1943 mfont->u.width = font->width;
1944 mfont->u.ascent = font->ascent;
1945 mfont->u.descent = font->descent;
1946 mfont->u.height = font->height;
1947 mfont->u.public_charset = font->public_charset;
1948 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1949 mfont->u.preferred_drawtype = font->preferred_drawtype;
1951 mfont->fallback = fallback;
1953 return (unifont *)mfont;
1956 static void multifont_destroy(unifont *font)
1958 struct multifont *mfont = (struct multifont *)font;
1959 unifont_destroy(mfont->main);
1960 if (mfont->fallback)
1961 unifont_destroy(mfont->fallback);
1965 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1966 int y, const wchar_t *string, int len,
1967 int wide, int bold, int cellwidth)
1969 struct multifont *mfont = (struct multifont *)font;
1975 * Find a maximal sequence of characters which are, or are
1976 * not, supported by our main font.
1978 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1981 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1987 f = ok ? mfont->main : mfont->fallback;
1989 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1996 #if GTK_CHECK_VERSION(2,0,0)
1998 /* ----------------------------------------------------------------------
1999 * Implementation of a unified font selector. Used on GTK 2 only;
2000 * for GTK 1 we still use the standard font selector.
2003 typedef struct fontinfo fontinfo;
2005 typedef struct unifontsel_internal {
2006 /* This must be the structure's first element, for cross-casting */
2008 GtkListStore *family_model, *style_model, *size_model;
2009 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2010 GtkWidget *filter_buttons[4];
2011 int n_filter_buttons;
2012 GtkWidget *preview_area;
2013 #ifndef NO_BACKING_PIXMAPS
2014 GdkPixmap *preview_pixmap;
2016 int preview_width, preview_height;
2017 GdkColor preview_fg, preview_bg;
2019 tree234 *fonts_by_realname, *fonts_by_selorder;
2021 int selsize, intendedsize;
2022 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2023 } unifontsel_internal;
2026 * The structure held in the tree234s. All the string members are
2027 * part of the same allocated area, so don't need freeing
2032 char *family, *charset, *style, *stylekey;
2035 * Fallback sorting key, to permit multiple identical entries
2036 * to exist in the selorder tree.
2040 * Indices mapping fontinfo structures to indices in the list
2041 * boxes. sizeindex is irrelevant if the font is scalable
2044 int familyindex, styleindex, sizeindex;
2046 * The class of font.
2048 const struct unifont_vtable *fontclass;
2051 struct fontinfo_realname_find {
2052 const char *realname;
2056 static int strnullcasecmp(const char *a, const char *b)
2061 * If exactly one of the inputs is NULL, it compares before
2064 if ((i = (!b) - (!a)) != 0)
2068 * NULL compares equal.
2074 * Otherwise, ordinary strcasecmp.
2076 return g_ascii_strcasecmp(a, b);
2079 static int fontinfo_realname_compare(void *av, void *bv)
2081 fontinfo *a = (fontinfo *)av;
2082 fontinfo *b = (fontinfo *)bv;
2085 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
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);
2093 static int fontinfo_realname_find(void *av, void *bv)
2095 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2096 fontinfo *b = (fontinfo *)bv;
2099 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2101 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2102 return ((a->flags & FONTFLAG_SORT_MASK) <
2103 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2107 static int fontinfo_selorder_compare(void *av, void *bv)
2109 fontinfo *a = (fontinfo *)av;
2110 fontinfo *b = (fontinfo *)bv;
2112 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2115 * Font class comes immediately after family, so that fonts
2116 * from different classes with the same family
2118 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2119 return ((a->flags & FONTFLAG_SORT_MASK) <
2120 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2121 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2123 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2125 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2127 if (a->size != b->size)
2128 return (a->size < b->size ? -1 : +1);
2129 if (a->index != b->index)
2130 return (a->index < b->index ? -1 : +1);
2134 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2136 static void unifontsel_deselect(unifontsel_internal *fs)
2138 fs->selected = NULL;
2139 gtk_list_store_clear(fs->style_model);
2140 gtk_list_store_clear(fs->size_model);
2141 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2142 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2143 unifontsel_draw_preview_text(fs);
2146 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2149 int i, listindex, minpos = -1, maxpos = -1;
2150 char *currfamily = NULL;
2154 fs->inhibit_response = TRUE;
2156 gtk_list_store_clear(fs->family_model);
2160 * Search through the font tree for anything matching our
2161 * current filter criteria. When we find one, add its font
2162 * name to the list box.
2164 for (i = 0 ;; i++) {
2165 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2167 * info may be NULL if we've just run off the end of the
2168 * tree. We must still do a processing pass in that
2169 * situation, in case we had an unfinished font record in
2172 if (info && (info->flags &~ fs->filter_flags)) {
2173 info->familyindex = -1;
2174 continue; /* we're filtering out this font */
2176 if (!info || strnullcasecmp(currfamily, info->family) ||
2177 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2179 * We've either finished a family, or started a new
2183 gtk_list_store_append(fs->family_model, &iter);
2184 gtk_list_store_set(fs->family_model, &iter,
2185 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2190 currfamily = info->family;
2191 currflags = info->flags & FONTFLAG_SORT_MASK;
2195 break; /* now we're done */
2196 info->familyindex = listindex;
2201 * If we've just filtered out the previously selected font,
2202 * deselect it thoroughly.
2204 if (fs->selected && fs->selected->familyindex < 0)
2205 unifontsel_deselect(fs);
2207 fs->inhibit_response = FALSE;
2210 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2214 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2215 char *currcs = NULL, *currstyle = NULL;
2218 gtk_list_store_clear(fs->style_model);
2223 * Search through the font tree for anything matching our
2224 * current filter criteria. When we find one, add its charset
2225 * and/or style name to the list box.
2227 for (i = start; i <= end; i++) {
2231 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2233 * info may be NULL if we've just run off the end of the
2234 * relevant data. We must still do a processing pass in
2235 * that situation, in case we had an unfinished font
2236 * record in progress.
2238 if (info && (info->flags &~ fs->filter_flags)) {
2239 info->styleindex = -1;
2240 continue; /* we're filtering out this font */
2242 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2243 strnullcasecmp(currstyle, info->style)) {
2245 * We've either finished a style/charset, or started a
2250 gtk_list_store_append(fs->style_model, &iter);
2251 gtk_list_store_set(fs->style_model, &iter,
2252 0, currstyle, 1, minpos, 2, maxpos+1,
2258 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2259 gtk_list_store_append(fs->style_model, &iter);
2260 gtk_list_store_set(fs->style_model, &iter,
2261 0, info->charset, 1, -1, 2, -1,
2265 currcs = info->charset;
2266 currstyle = info->style;
2270 break; /* now we're done */
2271 info->styleindex = listindex;
2276 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2278 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2286 gtk_list_store_clear(fs->size_model);
2290 * Search through the font tree for anything matching our
2291 * current filter criteria. When we find one, add its font
2292 * name to the list box.
2294 for (i = start; i < end; i++) {
2295 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2296 if (info->flags &~ fs->filter_flags) {
2297 info->sizeindex = -1;
2298 continue; /* we're filtering out this font */
2301 sprintf(sizetext, "%d", info->size);
2302 info->sizeindex = listindex;
2303 gtk_list_store_append(fs->size_model, &iter);
2304 gtk_list_store_set(fs->size_model, &iter,
2305 0, sizetext, 1, i, 2, info->size, -1);
2313 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2314 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2315 gtk_list_store_append(fs->size_model, &iter);
2316 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2317 2, unifontsel_default_sizes[j], -1);
2324 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2328 for (i = 0; i < fs->n_filter_buttons; i++) {
2329 int flagbit = GPOINTER_TO_INT(g_object_get_data
2330 (G_OBJECT(fs->filter_buttons[i]),
2332 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2333 !!(fs->filter_flags & flagbit));
2337 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2338 unifontsel_internal *fs)
2341 char *sizename = NULL;
2342 fontinfo *info = fs->selected;
2345 sizename = info->fontclass->scale_fontname
2346 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2347 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2348 sizename ? sizename : info->realname,
2349 FALSE, FALSE, 0, 0);
2353 #ifdef DRAW_TEXT_GDK
2354 if (dctx->type == DRAWTYPE_GDK) {
2355 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2356 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2357 fs->preview_width, fs->preview_height);
2358 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2361 #ifdef DRAW_TEXT_CAIRO
2362 if (dctx->type == DRAWTYPE_CAIRO) {
2363 cairo_set_source_rgb(dctx->u.cairo.cr,
2364 fs->preview_bg.red / 65535.0,
2365 fs->preview_bg.green / 65535.0,
2366 fs->preview_bg.blue / 65535.0);
2367 cairo_paint(dctx->u.cairo.cr);
2368 cairo_set_source_rgb(dctx->u.cairo.cr,
2369 fs->preview_fg.red / 65535.0,
2370 fs->preview_fg.green / 65535.0,
2371 fs->preview_fg.blue / 65535.0);
2377 * The pangram used here is rather carefully
2378 * constructed: it contains a sequence of very narrow
2379 * letters (`jil') and a pair of adjacent very wide
2382 * If the user selects a proportional font, it will be
2383 * coerced into fixed-width character cells when used
2384 * in the actual terminal window. We therefore display
2385 * it the same way in the preview pane, so as to show
2386 * it the way it will actually be displayed - and we
2387 * deliberately pick a pangram which will show the
2388 * resulting miskerning at its worst.
2390 * We aren't trying to sell people these fonts; we're
2391 * trying to let them make an informed choice. Better
2392 * that they find out the problems with using
2393 * proportional fonts in terminal windows here than
2394 * that they go to the effort of selecting their font
2395 * and _then_ realise it was a mistake.
2397 info->fontclass->draw_text(dctx, font,
2399 L"bankrupt jilted showmen quiz convex fogey",
2400 41, FALSE, FALSE, font->width);
2401 info->fontclass->draw_text(dctx, font,
2402 0, font->ascent + font->height,
2403 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2404 41, FALSE, FALSE, font->width);
2406 * The ordering of punctuation here is also selected
2407 * with some specific aims in mind. I put ` and '
2408 * together because some software (and people) still
2409 * use them as matched quotes no matter what Unicode
2410 * might say on the matter, so people can quickly
2411 * check whether they look silly in a candidate font.
2412 * The sequence #_@ is there to let people judge the
2413 * suitability of the underscore as an effectively
2414 * alphabetic character (since that's how it's often
2415 * used in practice, at least by programmers).
2417 info->fontclass->draw_text(dctx, font,
2418 0, font->ascent + font->height * 2,
2419 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2420 42, FALSE, FALSE, font->width);
2422 info->fontclass->destroy(font);
2428 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2430 unifont_drawctx dctx;
2433 #ifndef NO_BACKING_PIXMAPS
2434 target = fs->preview_pixmap;
2436 target = gtk_widget_get_window(fs->preview_area);
2438 if (!target) /* we may be called when we haven't created everything yet */
2441 dctx.type = DRAWTYPE_DEFAULT;
2442 #ifdef DRAW_TEXT_GDK
2443 if (dctx.type == DRAWTYPE_GDK) {
2444 dctx.u.gdk.target = target;
2445 dctx.u.gdk.gc = gdk_gc_new(target);
2448 #ifdef DRAW_TEXT_CAIRO
2449 if (dctx.type == DRAWTYPE_CAIRO) {
2450 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2451 dctx.u.cairo.cr = gdk_cairo_create(target);
2455 unifontsel_draw_preview_text_inner(&dctx, fs);
2457 #ifdef DRAW_TEXT_GDK
2458 if (dctx.type == DRAWTYPE_GDK) {
2459 gdk_gc_unref(dctx.u.gdk.gc);
2462 #ifdef DRAW_TEXT_CAIRO
2463 if (dctx.type == DRAWTYPE_CAIRO) {
2464 cairo_destroy(dctx.u.cairo.cr);
2468 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2472 static void unifontsel_select_font(unifontsel_internal *fs,
2473 fontinfo *info, int size, int leftlist,
2474 int size_is_explicit)
2479 GtkTreePath *treepath;
2482 fs->inhibit_response = TRUE;
2484 fs->selected = info;
2486 if (size_is_explicit)
2487 fs->intendedsize = size;
2489 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2492 * Find the index of this fontinfo in the selorder list.
2495 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2499 * Adjust the font selector flags and redo the font family
2500 * list box, if necessary.
2502 if (leftlist <= 0 &&
2503 (fs->filter_flags | info->flags) != fs->filter_flags) {
2504 fs->filter_flags |= info->flags;
2505 unifontsel_set_filter_buttons(fs);
2506 unifontsel_setup_familylist(fs);
2510 * Find the appropriate family name and select it in the list.
2512 assert(info->familyindex >= 0);
2513 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2514 gtk_tree_selection_select_path
2515 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2517 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2518 treepath, NULL, FALSE, 0.0, 0.0);
2519 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2522 gtk_tree_path_free(treepath);
2525 * Now set up the font style list.
2527 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2528 1, &minval, 2, &maxval, -1);
2530 unifontsel_setup_stylelist(fs, minval, maxval);
2533 * Find the appropriate style name and select it in the list.
2536 assert(info->styleindex >= 0);
2537 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2538 gtk_tree_selection_select_path
2539 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2541 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2542 treepath, NULL, FALSE, 0.0, 0.0);
2543 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2545 gtk_tree_path_free(treepath);
2548 * And set up the size list.
2550 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2551 1, &minval, 2, &maxval, -1);
2553 unifontsel_setup_sizelist(fs, minval, maxval);
2556 * Find the appropriate size, and select it in the list.
2559 assert(info->sizeindex >= 0);
2560 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2561 gtk_tree_selection_select_path
2562 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2564 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2565 treepath, NULL, FALSE, 0.0, 0.0);
2566 gtk_tree_path_free(treepath);
2570 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2571 if (unifontsel_default_sizes[j] == size) {
2572 treepath = gtk_tree_path_new_from_indices(j, -1);
2573 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2574 treepath, NULL, FALSE);
2575 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2576 treepath, NULL, FALSE, 0.0,
2578 gtk_tree_path_free(treepath);
2583 * And set up the font size text entry box.
2587 sprintf(sizetext, "%d", size);
2588 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2592 unifontsel_setup_sizelist(fs, 0, 0);
2593 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2597 * Grey out the font size edit box if we're not using a
2600 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2601 fs->selected->size == 0);
2602 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2604 unifontsel_draw_preview_text(fs);
2606 fs->inhibit_response = FALSE;
2609 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2611 unifontsel_internal *fs = (unifontsel_internal *)data;
2612 int newstate = gtk_toggle_button_get_active(tb);
2614 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2618 newflags = fs->filter_flags | flagbit;
2620 newflags = fs->filter_flags & ~flagbit;
2622 if (fs->filter_flags != newflags) {
2623 fs->filter_flags = newflags;
2624 unifontsel_setup_familylist(fs);
2628 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2629 const char *family, const char *charset,
2630 const char *style, const char *stylekey,
2631 int size, int flags,
2632 const struct unifont_vtable *fontclass)
2634 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2639 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2640 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2641 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2642 info = (fontinfo *)smalloc(totalsize);
2643 info->fontclass = fontclass;
2644 p = (char *)info + sizeof(fontinfo);
2646 strcpy(p, realfontname);
2653 info->family = NULL;
2659 info->charset = NULL;
2668 strcpy(p, stylekey);
2671 info->stylekey = NULL;
2672 assert(p - (char *)info <= totalsize);
2674 info->flags = flags;
2675 info->index = count234(fs->fonts_by_selorder);
2678 * It's just conceivable that a misbehaving font enumerator
2679 * might tell us about the same font real name more than once,
2680 * in which case we should silently drop the new one.
2682 if (add234(fs->fonts_by_realname, info) != info) {
2687 * However, we should never get a duplicate key in the
2688 * selorder tree, because the index field carefully
2689 * disambiguates otherwise identical records.
2691 add234(fs->fonts_by_selorder, info);
2694 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2697 fontinfo info2, *below, *above;
2701 * Copy the info structure. This doesn't copy its dynamic
2702 * string fields, but that's unimportant because all we're
2703 * going to do is to adjust the size field and use it in one
2707 info2.size = fs->intendedsize;
2710 * Search in the tree to find the fontinfo structure which
2711 * best approximates the size the user last requested.
2713 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2717 above = index234(fs->fonts_by_selorder, pos+1);
2720 * See if we've found it exactly, which is an easy special
2721 * case. If we have, it'll be in `below' and not `above',
2722 * because we did a REL234_LE rather than REL234_LT search.
2724 if (below && !fontinfo_selorder_compare(&info2, below))
2728 * Now we've either found two suitable fonts, one smaller and
2729 * one larger, or we're at one or other extreme end of the
2730 * scale. Find out which, by NULLing out either of below and
2731 * above if it differs from this one in any respect but size
2732 * (and the disambiguating index field). Bear in mind, also,
2733 * that either one might _already_ be NULL if we're at the
2734 * extreme ends of the font list.
2737 info2.size = below->size;
2738 info2.index = below->index;
2739 if (fontinfo_selorder_compare(&info2, below))
2743 info2.size = above->size;
2744 info2.index = above->index;
2745 if (fontinfo_selorder_compare(&info2, above))
2750 * Now return whichever of above and below is non-NULL, if
2751 * that's unambiguous.
2759 * And now we really do have to make a choice about whether to
2760 * round up or down. We'll do it by rounding to nearest,
2761 * breaking ties by rounding up.
2763 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2769 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2771 unifontsel_internal *fs = (unifontsel_internal *)data;
2772 GtkTreeModel *treemodel;
2773 GtkTreeIter treeiter;
2777 if (fs->inhibit_response) /* we made this change ourselves */
2780 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2783 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2784 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2785 info = update_for_intended_size(fs, info);
2787 return; /* _shouldn't_ happen unless font list is completely funted */
2789 fs->selsize = fs->intendedsize; /* font is scalable */
2790 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2794 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2796 unifontsel_internal *fs = (unifontsel_internal *)data;
2797 GtkTreeModel *treemodel;
2798 GtkTreeIter treeiter;
2802 if (fs->inhibit_response) /* we made this change ourselves */
2805 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2808 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2810 return; /* somehow a charset heading got clicked */
2811 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2812 info = update_for_intended_size(fs, info);
2814 return; /* _shouldn't_ happen unless font list is completely funted */
2816 fs->selsize = fs->intendedsize; /* font is scalable */
2817 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2821 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2823 unifontsel_internal *fs = (unifontsel_internal *)data;
2824 GtkTreeModel *treemodel;
2825 GtkTreeIter treeiter;
2829 if (fs->inhibit_response) /* we made this change ourselves */
2832 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2835 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2836 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2837 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2840 static void size_entry_changed(GtkEditable *ed, gpointer data)
2842 unifontsel_internal *fs = (unifontsel_internal *)data;
2846 if (fs->inhibit_response) /* we made this change ourselves */
2849 text = gtk_entry_get_text(GTK_ENTRY(ed));
2853 assert(fs->selected->size == 0);
2854 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2858 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2859 GtkTreeViewColumn *column, gpointer data)
2861 unifontsel_internal *fs = (unifontsel_internal *)data;
2863 int minval, newsize;
2864 fontinfo *info, *newinfo;
2867 if (fs->inhibit_response) /* we made this change ourselves */
2870 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2871 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2872 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2875 struct fontinfo_realname_find f;
2877 newname = info->fontclass->canonify_fontname
2878 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2880 f.realname = newname;
2882 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2886 return; /* font name not in our index */
2887 if (newinfo == info)
2888 return; /* didn't change under canonification => not an alias */
2889 unifontsel_select_font(fs, newinfo,
2890 newinfo->size ? newinfo->size : newsize,
2895 #if GTK_CHECK_VERSION(3,0,0)
2896 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
2898 unifontsel_internal *fs = (unifontsel_internal *)data;
2899 unifont_drawctx dctx;
2901 dctx.type = DRAWTYPE_CAIRO;
2902 dctx.u.cairo.widget = widget;
2903 dctx.u.cairo.cr = cr;
2904 unifontsel_draw_preview_text_inner(&dctx, fs);
2909 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2912 unifontsel_internal *fs = (unifontsel_internal *)data;
2914 #ifndef NO_BACKING_PIXMAPS
2915 if (fs->preview_pixmap) {
2916 gdk_draw_pixmap(gtk_widget_get_window(widget),
2917 (gtk_widget_get_style(widget)->fg_gc
2918 [gtk_widget_get_state(widget)]),
2920 event->area.x, event->area.y,
2921 event->area.x, event->area.y,
2922 event->area.width, event->area.height);
2925 unifontsel_draw_preview_text(fs);
2932 static gint unifontsel_configure_area(GtkWidget *widget,
2933 GdkEventConfigure *event, gpointer data)
2935 #ifndef NO_BACKING_PIXMAPS
2936 unifontsel_internal *fs = (unifontsel_internal *)data;
2937 int ox, oy, nx, ny, x, y;
2940 * Enlarge the pixmap, but never shrink it.
2942 ox = fs->preview_width;
2943 oy = fs->preview_height;
2946 if (x > ox || y > oy) {
2947 if (fs->preview_pixmap)
2948 gdk_pixmap_unref(fs->preview_pixmap);
2950 nx = (x > ox ? x : ox);
2951 ny = (y > oy ? y : oy);
2952 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2954 fs->preview_width = nx;
2955 fs->preview_height = ny;
2957 unifontsel_draw_preview_text(fs);
2961 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
2966 unifontsel *unifontsel_new(const char *wintitle)
2968 unifontsel_internal *fs = snew(unifontsel_internal);
2969 GtkWidget *table, *label, *w, *ww, *scroll;
2970 GtkListStore *model;
2971 GtkTreeViewColumn *column;
2972 int lists_height, preview_height, font_width, style_width, size_width;
2975 fs->inhibit_response = FALSE;
2976 fs->selected = NULL;
2982 * Invent some magic size constants.
2984 get_label_text_dimensions("Quite Long Font Name (Foundry)",
2987 lists_height = 14 * height;
2988 preview_height = 5 * height;
2990 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
2991 style_width = width;
2993 get_label_text_dimensions("48000", &width, &height);
2998 * Create the dialog box and initialise the user-visible
2999 * fields in the returned structure.
3001 fs->u.user_data = NULL;
3002 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3003 gtk_window_set_title(fs->u.window, wintitle);
3004 fs->u.cancel_button = gtk_dialog_add_button
3005 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3006 fs->u.ok_button = gtk_dialog_add_button
3007 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3008 gtk_widget_grab_default(fs->u.ok_button);
3011 * Now set up the internal fields, including in particular all
3012 * the controls that actually allow the user to select fonts.
3014 #if GTK_CHECK_VERSION(3,0,0)
3015 table = gtk_grid_new();
3016 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3018 table = gtk_table_new(8, 3, FALSE);
3019 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3021 gtk_widget_show(table);
3023 #if GTK_CHECK_VERSION(3,0,0)
3024 /* GtkAlignment has become deprecated and we use the "margin"
3027 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3028 #elif GTK_CHECK_VERSION(2,4,0)
3029 /* GtkAlignment seems to be the simplest way to put padding round things */
3030 w = gtk_alignment_new(0, 0, 1, 1);
3031 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3032 gtk_container_add(GTK_CONTAINER(w), table);
3035 /* In GTK < 2.4, even that isn't available */
3039 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3040 (GTK_DIALOG(fs->u.window))),
3043 label = gtk_label_new_with_mnemonic("_Font:");
3044 gtk_widget_show(label);
3045 align_label_left(GTK_LABEL(label));
3046 #if GTK_CHECK_VERSION(3,0,0)
3047 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3048 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3050 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3054 * The Font list box displays only a string, but additionally
3055 * stores two integers which give the limits within the
3056 * tree234 of the font entries covered by this list entry.
3058 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3059 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3060 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3061 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3063 column = gtk_tree_view_column_new_with_attributes
3064 ("Font", gtk_cell_renderer_text_new(),
3065 "text", 0, (char *)NULL);
3066 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3067 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3068 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3069 "changed", G_CALLBACK(family_changed), fs);
3070 g_signal_connect(G_OBJECT(w), "row-activated",
3071 G_CALLBACK(alias_resolve), fs);
3073 scroll = gtk_scrolled_window_new(NULL, NULL);
3074 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3076 gtk_container_add(GTK_CONTAINER(scroll), w);
3077 gtk_widget_show(scroll);
3078 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3079 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3080 gtk_widget_set_size_request(scroll, font_width, lists_height);
3081 #if GTK_CHECK_VERSION(3,0,0)
3082 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3083 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3085 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3086 GTK_EXPAND | GTK_FILL, 0, 0);
3088 fs->family_model = model;
3089 fs->family_list = w;
3091 label = gtk_label_new_with_mnemonic("_Style:");
3092 gtk_widget_show(label);
3093 align_label_left(GTK_LABEL(label));
3094 #if GTK_CHECK_VERSION(3,0,0)
3095 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3096 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3098 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3102 * The Style list box can contain insensitive elements
3103 * (character set headings for server-side fonts), so we add
3104 * an extra column to the list store to hold that information.
3106 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3108 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3109 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3110 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3112 column = gtk_tree_view_column_new_with_attributes
3113 ("Style", gtk_cell_renderer_text_new(),
3114 "text", 0, "sensitive", 3, (char *)NULL);
3115 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3116 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3117 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3118 "changed", G_CALLBACK(style_changed), fs);
3120 scroll = gtk_scrolled_window_new(NULL, NULL);
3121 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3123 gtk_container_add(GTK_CONTAINER(scroll), w);
3124 gtk_widget_show(scroll);
3125 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3126 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3127 gtk_widget_set_size_request(scroll, style_width, lists_height);
3128 #if GTK_CHECK_VERSION(3,0,0)
3129 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3130 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3132 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3133 GTK_EXPAND | GTK_FILL, 0, 0);
3135 fs->style_model = model;
3138 label = gtk_label_new_with_mnemonic("Si_ze:");
3139 gtk_widget_show(label);
3140 align_label_left(GTK_LABEL(label));
3141 #if GTK_CHECK_VERSION(3,0,0)
3142 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3143 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3145 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3149 * The Size label attaches primarily to a text input box so
3150 * that the user can select a size of their choice. The list
3151 * of available sizes is secondary.
3153 fs->size_entry = w = gtk_entry_new();
3154 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3155 gtk_widget_set_size_request(w, size_width, -1);
3157 #if GTK_CHECK_VERSION(3,0,0)
3158 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3159 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3161 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3163 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3166 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3167 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3168 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3170 column = gtk_tree_view_column_new_with_attributes
3171 ("Size", gtk_cell_renderer_text_new(),
3172 "text", 0, (char *)NULL);
3173 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3174 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3175 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3176 "changed", G_CALLBACK(size_changed), fs);
3178 scroll = gtk_scrolled_window_new(NULL, NULL);
3179 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3181 gtk_container_add(GTK_CONTAINER(scroll), w);
3182 gtk_widget_show(scroll);
3183 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3184 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3185 #if GTK_CHECK_VERSION(3,0,0)
3186 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3187 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3189 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3190 GTK_EXPAND | GTK_FILL, 0, 0);
3192 fs->size_model = model;
3198 fs->preview_area = gtk_drawing_area_new();
3199 #ifndef NO_BACKING_PIXMAPS
3200 fs->preview_pixmap = NULL;
3202 fs->preview_width = 0;
3203 fs->preview_height = 0;
3204 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3205 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3206 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3207 #if !GTK_CHECK_VERSION(3,0,0)
3208 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3210 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3213 #if GTK_CHECK_VERSION(3,0,0)
3214 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3215 G_CALLBACK(unifontsel_draw_area), fs);
3217 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3218 G_CALLBACK(unifontsel_expose_area), fs);
3220 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3221 G_CALLBACK(unifontsel_configure_area), fs);
3222 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3223 gtk_widget_show(fs->preview_area);
3224 ww = fs->preview_area;
3225 w = gtk_frame_new(NULL);
3226 gtk_container_add(GTK_CONTAINER(w), ww);
3229 #if GTK_CHECK_VERSION(3,0,0)
3230 /* GtkAlignment has become deprecated and we use the "margin"
3232 g_object_set(G_OBJECT(w), "margin", 8, (const char *)NULL);
3233 #elif GTK_CHECK_VERSION(2,4,0)
3235 /* GtkAlignment seems to be the simplest way to put padding round things */
3236 w = gtk_alignment_new(0, 0, 1, 1);
3237 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3238 gtk_container_add(GTK_CONTAINER(w), ww);
3243 w = gtk_frame_new("Preview of font");
3244 gtk_container_add(GTK_CONTAINER(w), ww);
3246 #if GTK_CHECK_VERSION(3,0,0)
3247 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3248 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3250 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3251 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3255 * We only provide the checkboxes for client- and server-side
3256 * fonts if we have the X11 back end available, because that's the
3257 * only situation in which more than one class of font is
3260 fs->n_filter_buttons = 0;
3261 #ifndef NOT_X_WINDOWS
3262 w = gtk_check_button_new_with_label("Show client-side fonts");
3263 g_object_set_data(G_OBJECT(w), "user-data",
3264 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3265 g_signal_connect(G_OBJECT(w), "toggled",
3266 G_CALLBACK(unifontsel_button_toggled), fs);
3268 fs->filter_buttons[fs->n_filter_buttons++] = w;
3269 #if GTK_CHECK_VERSION(3,0,0)
3270 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3271 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3273 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3275 w = gtk_check_button_new_with_label("Show server-side fonts");
3276 g_object_set_data(G_OBJECT(w), "user-data",
3277 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3278 g_signal_connect(G_OBJECT(w), "toggled",
3279 G_CALLBACK(unifontsel_button_toggled), fs);
3281 fs->filter_buttons[fs->n_filter_buttons++] = w;
3282 #if GTK_CHECK_VERSION(3,0,0)
3283 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3284 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3286 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3288 w = gtk_check_button_new_with_label("Show server-side font aliases");
3289 g_object_set_data(G_OBJECT(w), "user-data",
3290 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3291 g_signal_connect(G_OBJECT(w), "toggled",
3292 G_CALLBACK(unifontsel_button_toggled), fs);
3294 fs->filter_buttons[fs->n_filter_buttons++] = w;
3295 #if GTK_CHECK_VERSION(3,0,0)
3296 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3297 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3299 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3301 #endif /* NOT_X_WINDOWS */
3302 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3303 g_object_set_data(G_OBJECT(w), "user-data",
3304 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3305 g_signal_connect(G_OBJECT(w), "toggled",
3306 G_CALLBACK(unifontsel_button_toggled), fs);
3308 fs->filter_buttons[fs->n_filter_buttons++] = w;
3309 #if GTK_CHECK_VERSION(3,0,0)
3310 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3311 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3313 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3316 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3317 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3318 FONTFLAG_SERVERALIAS;
3319 unifontsel_set_filter_buttons(fs);
3322 * Go and find all the font names, and set up our master font
3325 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3326 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3327 for (i = 0; i < lenof(unifont_types); i++)
3328 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3329 unifontsel_add_entry, fs);
3332 * And set up the initial font names list.
3334 unifontsel_setup_familylist(fs);
3336 fs->selsize = fs->intendedsize = 13; /* random default */
3337 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3339 return (unifontsel *)fs;
3342 void unifontsel_destroy(unifontsel *fontsel)
3344 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3347 #ifndef NO_BACKING_PIXMAPS
3348 if (fs->preview_pixmap)
3349 gdk_pixmap_unref(fs->preview_pixmap);
3352 freetree234(fs->fonts_by_selorder);
3353 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3355 freetree234(fs->fonts_by_realname);
3357 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3361 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3363 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3364 int i, start, end, size, flags;
3365 const char *fontname2 = NULL;
3369 * Provide a default if given an empty or null font name.
3371 if (!fontname || !*fontname)
3372 fontname = DEFAULT_GTK_FONT;
3375 * Call the canonify_fontname function.
3377 fontname = unifont_do_prefix(fontname, &start, &end);
3378 for (i = start; i < end; i++) {
3379 fontname2 = unifont_types[i]->canonify_fontname
3380 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3385 return; /* font name not recognised */
3388 * Now look up the canonified font name in our index.
3391 struct fontinfo_realname_find f;
3392 f.realname = fontname2;
3394 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3398 * If we've found the font, and its size field is either
3399 * correct or zero (the latter indicating a scalable font),
3400 * then we're done. Otherwise, try looking up the original
3401 * font name instead.
3403 if (!info || (info->size != size && info->size != 0)) {
3404 struct fontinfo_realname_find f;
3405 f.realname = fontname;
3408 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3409 if (!info || info->size != size)
3410 return; /* font name not in our index */
3414 * Now we've got a fontinfo structure and a font size, so we
3415 * know everything we need to fill in all the fields in the
3418 unifontsel_select_font(fs, info, size, 0, TRUE);
3421 char *unifontsel_get_name(unifontsel *fontsel)
3423 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3429 if (fs->selected->size == 0) {
3430 name = fs->selected->fontclass->scale_fontname
3431 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3433 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3440 return dupcat(fs->selected->fontclass->prefix, ":",
3441 fs->selected->realname, NULL);
3444 #endif /* GTK_CHECK_VERSION(2,0,0) */