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.
39 #if !GLIB_CHECK_VERSION(1,3,7)
40 #define g_ascii_strcasecmp g_strcasecmp
41 #define g_ascii_strncasecmp g_strncasecmp
45 * Ad-hoc vtable mechanism to allow font structures to be
48 * Any instance of `unifont' used in the vtable functions will
49 * actually be the first element of a larger structure containing
50 * data specific to the subtype. This is permitted by the ISO C
51 * provision that one may safely cast between a pointer to a
52 * structure and a pointer to its first element.
55 #define FONTFLAG_CLIENTSIDE 0x0001
56 #define FONTFLAG_SERVERSIDE 0x0002
57 #define FONTFLAG_SERVERALIAS 0x0004
58 #define FONTFLAG_NONMONOSPACED 0x0008
60 #define FONTFLAG_SORT_MASK 0x0007 /* used to disambiguate font families */
62 typedef void (*fontsel_add_entry)(void *ctx, const char *realfontname,
63 const char *family, const char *charset,
64 const char *style, const char *stylekey,
66 const struct unifont_vtable *fontclass);
68 struct unifont_vtable {
70 * `Methods' of the `class'.
72 unifont *(*create)(GtkWidget *widget, const char *name, int wide, int bold,
73 int shadowoffset, int shadowalways);
74 unifont *(*create_fallback)(GtkWidget *widget, int height, int wide,
75 int bold, int shadowoffset, int shadowalways);
76 void (*destroy)(unifont *font);
77 int (*has_glyph)(unifont *font, wchar_t glyph);
78 void (*draw_text)(unifont_drawctx *ctx, unifont *font,
79 int x, int y, const wchar_t *string, int len,
80 int wide, int bold, int cellwidth);
81 void (*enum_fonts)(GtkWidget *widget,
82 fontsel_add_entry callback, void *callback_ctx);
83 char *(*canonify_fontname)(GtkWidget *widget, const char *name, int *size,
84 int *flags, int resolve_aliases);
85 char *(*scale_fontname)(GtkWidget *widget, const char *name, int size);
88 * `Static data members' of the `class'.
95 /* ----------------------------------------------------------------------
96 * X11 font implementation, directly using Xlib calls. Conditioned out
97 * if X11 fonts aren't available at all (e.g. building with GTK3 for a
98 * back end other than X).
101 static int x11font_has_glyph(unifont *font, wchar_t glyph);
102 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
103 int x, int y, const wchar_t *string, int len,
104 int wide, int bold, int cellwidth);
105 static unifont *x11font_create(GtkWidget *widget, const char *name,
107 int shadowoffset, int shadowalways);
108 static void x11font_destroy(unifont *font);
109 static void x11font_enum_fonts(GtkWidget *widget,
110 fontsel_add_entry callback, void *callback_ctx);
111 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
112 int *size, int *flags,
113 int resolve_aliases);
114 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
117 #ifdef DRAW_TEXT_CAIRO
118 struct cairo_cached_glyph {
119 cairo_surface_t *surface;
120 unsigned char *bitmap;
125 * Structure storing a single physical XFontStruct, plus associated
128 typedef struct x11font_individual {
129 /* The XFontStruct itself. */
133 * The `allocated' flag indicates whether we've tried to fetch
134 * this subfont already (thus distinguishing xfs==NULL because we
135 * haven't tried yet from xfs==NULL because we tried and failed,
136 * so that we don't keep trying and failing subsequently).
140 #ifdef DRAW_TEXT_CAIRO
142 * A cache of glyph bitmaps downloaded from the X server when
143 * we're in Cairo rendering mode. If glyphcache itself is
144 * non-NULL, then entries in [0,nglyphs) are expected to be
145 * initialised to either NULL or a bitmap pointer.
147 struct cairo_cached_glyph *glyphcache;
151 * X server paraphernalia for actually downloading the glyphs.
155 int pixwidth, pixheight, pixoriginx, pixoriginy;
158 * Paraphernalia for loading the resulting bitmaps into Cairo.
160 int rowsize, allsize, indexflip;
163 } x11font_individual;
168 * Individual physical X fonts. We store a number of these, for
169 * automatically guessed bold and wide variants.
171 x11font_individual fonts[4];
173 * `sixteen_bit' is true iff the font object is indexed by
174 * values larger than a byte. That is, this flag tells us
175 * whether we use XDrawString or XDrawString16, etc.
179 * `variable' is true iff the font is non-fixed-pitch. This
180 * enables some code which takes greater care over character
181 * positioning during text drawing.
185 * real_charset is the charset used when translating text into the
186 * font's internal encoding inside draw_text(). This need not be
187 * the same as the public_charset provided to the client; for
188 * example, public_charset might be CS_ISO8859_1 while
189 * real_charset is CS_ISO8859_1_X11.
193 * Data passed in to unifont_create().
195 int wide, bold, shadowoffset, shadowalways;
198 static const struct unifont_vtable x11font_vtable = {
200 NULL, /* no fallback fonts in X11 */
205 x11font_canonify_fontname,
206 x11font_scale_fontname,
210 static char *x11_guess_derived_font_name(XFontStruct *xfs, int bold, int wide)
212 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
213 Atom fontprop = XInternAtom(disp, "FONT", False);
215 if (XGetFontProperty(xfs, fontprop, &ret)) {
216 char *name = XGetAtomName(disp, (Atom)ret);
217 if (name && name[0] == '-') {
218 const char *strings[13];
219 char *dupname, *extrafree = NULL, *ret;
223 p = q = dupname = dupstr(name); /* skip initial minus */
226 while (*p && nstr < lenof(strings)) {
229 strings[nstr++] = p+1;
234 if (nstr < lenof(strings)) {
236 return NULL; /* XLFD was malformed */
243 /* 4 is `wideness', which obviously may have changed. */
244 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
245 strings[4] = strings[5] = "*";
246 strings[11] = extrafree = dupprintf("%d", 2*atoi(strings[11]));
249 ret = dupcat("-", strings[ 0], "-", strings[ 1], "-", strings[ 2],
250 "-", strings[ 3], "-", strings[ 4], "-", strings[ 5],
251 "-", strings[ 6], "-", strings[ 7], "-", strings[ 8],
252 "-", strings[ 9], "-", strings[10], "-", strings[11],
253 "-", strings[12], NULL);
263 static int x11_font_width(XFontStruct *xfs, int sixteen_bit)
269 return XTextWidth16(xfs, &space, 1);
271 return XTextWidth(xfs, "0", 1);
275 static int x11_font_has_glyph(XFontStruct *xfs, int byte1, int byte2)
280 * Not to be confused with x11font_has_glyph, which is a method of
281 * the x11font 'class' and hence takes a unifont as argument. This
282 * is the low-level function which grubs about in an actual
283 * XFontStruct to see if a given glyph exists.
285 * We must do this ourselves rather than letting Xlib's
286 * XTextExtents16 do the job, because XTextExtents will helpfully
287 * substitute the font's default_char for any missing glyph and
288 * not tell us it did so, which precisely won't help us find out
289 * which glyphs _are_ missing.
291 * The man page for XQueryFont is rather confusing about how the
292 * per_char array in the XFontStruct is laid out, because it gives
293 * formulae for determining the two-byte X character code _from_
294 * an index into the per_char array. Going the other way, it's
297 * The valid character codes have byte1 between min_byte1 and
298 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
299 * max_char_or_byte2 inclusive. This gives a rectangle of size
300 * (max_byte2-min_byte1+1) by
301 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
302 * rectangle encoded in the per_char array. Hence, given a
303 * character code which is valid in the sense that it falls
304 * somewhere in that rectangle, its index in per_char is given by
307 * x = byte2 - min_char_or_byte2
308 * y = byte1 - min_byte1
309 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
311 * If min_byte1 and min_byte2 are both zero, that's a special case
312 * which can be treated as if min_byte2 was 1 instead, i.e. the
313 * per_char array just runs from min_char_or_byte2 to
314 * max_char_or_byte2 inclusive, and byte1 should always be zero.
317 if (byte2 < xfs->min_char_or_byte2 || byte2 > xfs->max_char_or_byte2)
320 if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
321 index = byte2 - xfs->min_char_or_byte2;
323 if (byte1 < xfs->min_byte1 || byte1 > xfs->max_byte1)
325 index = ((byte2 - xfs->min_char_or_byte2) +
326 ((byte1 - xfs->min_byte1) *
327 (xfs->max_char_or_byte2 - xfs->min_char_or_byte2 + 1)));
330 if (!xfs->per_char) /* per_char NULL => everything in range exists */
333 return (xfs->per_char[index].ascent + xfs->per_char[index].descent > 0 ||
334 xfs->per_char[index].width > 0);
337 static unifont *x11font_create(GtkWidget *widget, const char *name,
339 int shadowoffset, int shadowalways)
341 struct x11font *xfont;
343 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
344 Atom charset_registry, charset_encoding, spacing;
345 unsigned long registry_ret, encoding_ret, spacing_ret;
346 int pubcs, realcs, sixteen_bit, variable;
349 xfs = XLoadQueryFont(disp, name);
353 charset_registry = XInternAtom(disp, "CHARSET_REGISTRY", False);
354 charset_encoding = XInternAtom(disp, "CHARSET_ENCODING", False);
356 pubcs = realcs = CS_NONE;
360 if (XGetFontProperty(xfs, charset_registry, ®istry_ret) &&
361 XGetFontProperty(xfs, charset_encoding, &encoding_ret)) {
363 reg = XGetAtomName(disp, (Atom)registry_ret);
364 enc = XGetAtomName(disp, (Atom)encoding_ret);
366 char *encoding = dupcat(reg, "-", enc, NULL);
367 pubcs = realcs = charset_from_xenc(encoding);
370 * iso10646-1 is the only wide font encoding we
371 * support. In this case, we expect clients to give us
372 * UTF-8, which this module must internally convert
373 * into 16-bit Unicode.
375 if (!strcasecmp(encoding, "iso10646-1")) {
377 pubcs = realcs = CS_UTF8;
381 * Hack for X line-drawing characters: if the primary font
382 * is encoded as ISO-8859-1, and has valid glyphs in the
383 * low character positions, it is assumed that those
384 * glyphs are the VT100 line-drawing character set.
386 if (pubcs == CS_ISO8859_1) {
388 for (ch = 1; ch < 32; ch++)
389 if (!x11_font_has_glyph(xfs, 0, ch))
392 realcs = CS_ISO8859_1_X11;
399 spacing = XInternAtom(disp, "SPACING", False);
400 if (XGetFontProperty(xfs, spacing, &spacing_ret)) {
402 spc = XGetAtomName(disp, (Atom)spacing_ret);
404 if (spc && strchr("CcMm", spc[0]))
408 xfont = snew(struct x11font);
409 xfont->u.vt = &x11font_vtable;
410 xfont->u.width = x11_font_width(xfs, sixteen_bit);
411 xfont->u.ascent = xfs->ascent;
412 xfont->u.descent = xfs->descent;
413 xfont->u.height = xfont->u.ascent + xfont->u.descent;
414 xfont->u.public_charset = pubcs;
415 xfont->u.want_fallback = TRUE;
417 xfont->u.preferred_drawtype = DRAWTYPE_GDK;
418 #elif defined DRAW_TEXT_CAIRO
419 xfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
421 #error No drawtype available at all
423 xfont->real_charset = realcs;
424 xfont->sixteen_bit = sixteen_bit;
425 xfont->variable = variable;
428 xfont->shadowoffset = shadowoffset;
429 xfont->shadowalways = shadowalways;
431 for (i = 0; i < lenof(xfont->fonts); i++) {
432 xfont->fonts[i].xfs = NULL;
433 xfont->fonts[i].allocated = FALSE;
434 #ifdef DRAW_TEXT_CAIRO
435 xfont->fonts[i].glyphcache = NULL;
436 xfont->fonts[i].nglyphs = 0;
437 xfont->fonts[i].pixmap = None;
438 xfont->fonts[i].gc = None;
441 xfont->fonts[0].xfs = xfs;
442 xfont->fonts[0].allocated = TRUE;
444 return (unifont *)xfont;
447 static void x11font_destroy(unifont *font)
449 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
450 struct x11font *xfont = (struct x11font *)font;
453 for (i = 0; i < lenof(xfont->fonts); i++) {
454 if (xfont->fonts[i].xfs)
455 XFreeFont(disp, xfont->fonts[i].xfs);
456 #ifdef DRAW_TEXT_CAIRO
457 if (xfont->fonts[i].gc != None)
458 XFreeGC(disp, xfont->fonts[i].gc);
459 if (xfont->fonts[i].pixmap != None)
460 XFreePixmap(disp, xfont->fonts[i].pixmap);
461 if (xfont->fonts[i].glyphcache) {
463 for (j = 0; j < xfont->fonts[i].nglyphs; j++) {
464 cairo_surface_destroy(xfont->fonts[i].glyphcache[j].surface);
465 sfree(xfont->fonts[i].glyphcache[j].bitmap);
467 sfree(xfont->fonts[i].glyphcache);
474 static void x11_alloc_subfont(struct x11font *xfont, int sfid)
476 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
477 char *derived_name = x11_guess_derived_font_name
478 (xfont->fonts[0].xfs, sfid & 1, !!(sfid & 2));
479 xfont->fonts[sfid].xfs = XLoadQueryFont(disp, derived_name);
480 xfont->fonts[sfid].allocated = TRUE;
482 /* Note that xfont->fonts[sfid].xfs may still be NULL, if XLQF failed. */
485 static int x11font_has_glyph(unifont *font, wchar_t glyph)
487 struct x11font *xfont = (struct x11font *)font;
489 if (xfont->sixteen_bit) {
491 * This X font has 16-bit character indices, which means
492 * we can directly use our Unicode input value.
494 return x11_font_has_glyph(xfont->fonts[0].xfs,
495 glyph >> 8, glyph & 0xFF);
498 * This X font has 8-bit indices, so we must convert to the
499 * appropriate character set.
502 int sblen = wc_to_mb(xfont->real_charset, 0, &glyph, 1,
503 sbstring, 2, "", NULL, NULL);
504 if (sblen == 0 || !sbstring[0])
505 return FALSE; /* not even in the charset */
507 return x11_font_has_glyph(xfont->fonts[0].xfs, 0,
508 (unsigned char)sbstring[0]);
512 #if !GTK_CHECK_VERSION(2,0,0)
513 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
514 #elif GTK_CHECK_VERSION(3,0,0)
515 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XID(d) /* GTK3's name for this */
518 static int x11font_width_16(unifont_drawctx *ctx, x11font_individual *xfi,
519 const void *vstring, int start, int length)
521 const XChar2b *string = (const XChar2b *)vstring;
522 return XTextWidth16(xfi->xfs, string+start, length);
525 static int x11font_width_8(unifont_drawctx *ctx, x11font_individual *xfi,
526 const void *vstring, int start, int length)
528 const char *string = (const char *)vstring;
529 return XTextWidth(xfi->xfs, string+start, length);
533 static void x11font_gdk_setup(unifont_drawctx *ctx, x11font_individual *xfi)
535 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
536 XSetFont(disp, GDK_GC_XGC(ctx->u.gdk.gc), xfi->xfs->fid);
539 static void x11font_gdk_draw_16(unifont_drawctx *ctx,
540 x11font_individual *xfi, int x, int y,
541 const void *vstring, int start, int length)
543 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
544 const XChar2b *string = (const XChar2b *)vstring;
545 XDrawString16(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
546 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
549 static void x11font_gdk_draw_8(unifont_drawctx *ctx,
550 x11font_individual *xfi, int x, int y,
551 const void *vstring, int start, int length)
553 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
554 const char *string = (const char *)vstring;
555 XDrawString(disp, GDK_DRAWABLE_XID(ctx->u.gdk.target),
556 GDK_GC_XGC(ctx->u.gdk.gc), x, y, string+start, length);
560 #ifdef DRAW_TEXT_CAIRO
561 static void x11font_cairo_setup(unifont_drawctx *ctx, x11font_individual *xfi)
563 if (xfi->pixmap == None) {
564 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
566 GdkWindow *widgetwin = gtk_widget_get_window(ctx->u.cairo.widget);
567 int widgetscr = GDK_SCREEN_XNUMBER(gdk_window_get_screen(widgetwin));
570 xfi->xfs->max_bounds.rbearing - xfi->xfs->min_bounds.lbearing;
572 xfi->xfs->max_bounds.ascent + xfi->xfs->max_bounds.descent;
573 xfi->pixoriginx = -xfi->xfs->min_bounds.lbearing;
574 xfi->pixoriginy = xfi->xfs->max_bounds.ascent;
576 xfi->rowsize = cairo_format_stride_for_width(CAIRO_FORMAT_A1,
578 xfi->allsize = xfi->rowsize * xfi->pixheight;
582 * Test host endianness and use it to set xfi->indexflip,
583 * which is XORed into our left-shift counts in order to
584 * implement the CAIRO_FORMAT_A1 specification, in which
585 * each bitmap byte is oriented LSB-first on little-endian
586 * platforms and MSB-first on big-endian ones.
588 * This is the same technique Cairo itself uses to test
589 * endianness, so hopefully it'll work in any situation
590 * where Cairo is usable at all.
592 static const int endianness_test = 1;
593 xfi->indexflip = (*((char *) &endianness_test) == 1) ? 0 : 7;
596 xfi->pixmap = XCreatePixmap
598 GDK_DRAWABLE_XID(gtk_widget_get_window(ctx->u.cairo.widget)),
599 xfi->pixwidth, xfi->pixheight, 1);
600 gcvals.foreground = WhitePixel(disp, widgetscr);
601 gcvals.background = BlackPixel(disp, widgetscr);
602 gcvals.font = xfi->xfs->fid;
603 xfi->gc = XCreateGC(disp, xfi->pixmap,
604 GCForeground | GCBackground | GCFont, &gcvals);
608 static void x11font_cairo_cache_glyph(x11font_individual *xfi, int glyphindex)
612 unsigned char *bitmap;
613 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
615 bitmap = snewn(xfi->allsize, unsigned char);
616 memset(bitmap, 0, xfi->allsize);
618 image = XGetImage(disp, xfi->pixmap, 0, 0,
619 xfi->pixwidth, xfi->pixheight, AllPlanes, XYPixmap);
620 for (y = 0; y < xfi->pixheight; y++) {
621 for (x = 0; x < xfi->pixwidth; x++) {
622 unsigned long pixel = XGetPixel(image, x, y);
624 int byteindex = y * xfi->rowsize + x/8;
625 int bitindex = (x & 7) ^ xfi->indexflip;
626 bitmap[byteindex] |= 1U << bitindex;
630 XDestroyImage(image);
632 if (xfi->nglyphs <= glyphindex) {
633 /* Round up to the next multiple of 256 on the general
634 * principle that Unicode characters come in contiguous blocks
635 * often used together */
636 int old_nglyphs = xfi->nglyphs;
637 xfi->nglyphs = (glyphindex + 0x100) & ~0xFF;
638 xfi->glyphcache = sresize(xfi->glyphcache, xfi->nglyphs,
639 struct cairo_cached_glyph);
641 while (old_nglyphs < xfi->nglyphs) {
642 xfi->glyphcache[old_nglyphs].surface = NULL;
643 xfi->glyphcache[old_nglyphs].bitmap = NULL;
647 xfi->glyphcache[glyphindex].bitmap = bitmap;
648 xfi->glyphcache[glyphindex].surface = cairo_image_surface_create_for_data
649 (bitmap, CAIRO_FORMAT_A1, xfi->pixwidth, xfi->pixheight, xfi->rowsize);
652 static void x11font_cairo_draw_glyph(unifont_drawctx *ctx,
653 x11font_individual *xfi, int x, int y,
656 if (xfi->glyphcache[glyphindex].surface) {
657 cairo_mask_surface(ctx->u.cairo.cr,
658 xfi->glyphcache[glyphindex].surface,
659 x - xfi->pixoriginx, y - xfi->pixoriginy);
663 static void x11font_cairo_draw_16(unifont_drawctx *ctx,
664 x11font_individual *xfi, int x, int y,
665 const void *vstring, int start, int length)
667 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
668 const XChar2b *string = (const XChar2b *)vstring + start;
670 for (i = 0; i < length; i++) {
671 if (x11_font_has_glyph(xfi->xfs, string[i].byte1, string[i].byte2)) {
672 int glyphindex = (256 * (unsigned char)string[i].byte1 +
673 (unsigned char)string[i].byte2);
674 if (glyphindex >= xfi->nglyphs ||
675 !xfi->glyphcache[glyphindex].surface) {
676 XDrawImageString16(disp, xfi->pixmap, xfi->gc,
677 xfi->pixoriginx, xfi->pixoriginy,
679 x11font_cairo_cache_glyph(xfi, glyphindex);
681 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
682 x += XTextWidth16(xfi->xfs, string+i, 1);
687 static void x11font_cairo_draw_8(unifont_drawctx *ctx,
688 x11font_individual *xfi, int x, int y,
689 const void *vstring, int start, int length)
691 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
692 const char *string = (const char *)vstring + start;
694 for (i = 0; i < length; i++) {
695 if (x11_font_has_glyph(xfi->xfs, 0, string[i])) {
696 int glyphindex = (unsigned char)string[i];
697 if (glyphindex >= xfi->nglyphs ||
698 !xfi->glyphcache[glyphindex].surface) {
699 XDrawImageString(disp, xfi->pixmap, xfi->gc,
700 xfi->pixoriginx, xfi->pixoriginy,
702 x11font_cairo_cache_glyph(xfi, glyphindex);
704 x11font_cairo_draw_glyph(ctx, xfi, x, y, glyphindex);
705 x += XTextWidth(xfi->xfs, string+i, 1);
709 #endif /* DRAW_TEXT_CAIRO */
711 struct x11font_drawfuncs {
712 int (*width)(unifont_drawctx *ctx, x11font_individual *xfi,
713 const void *vstring, int start, int length);
714 void (*setup)(unifont_drawctx *ctx, x11font_individual *xfi);
715 void (*draw)(unifont_drawctx *ctx, x11font_individual *xfi, int x, int y,
716 const void *vstring, int start, int length);
720 * This array has two entries per compiled-in drawtype; of each pair,
721 * the first is for an 8-bit font and the second for 16-bit.
723 static const struct x11font_drawfuncs x11font_drawfuncs[2*DRAWTYPE_NTYPES] = {
738 #ifdef DRAW_TEXT_CAIRO
743 x11font_cairo_draw_8,
745 /* [3] cairo, 16-bit */
749 x11font_cairo_draw_16,
754 static void x11font_really_draw_text(const struct x11font_drawfuncs *dfns,
755 unifont_drawctx *ctx,
756 x11font_individual *xfi, int x, int y,
757 const void *string, int nchars,
759 int fontvariable, int cellwidth)
761 int start = 0, step, nsteps, centre;
765 * In a variable-pitch font, we draw one character at a
766 * time, and centre it in the character cell.
773 * In a fixed-pitch font, we can draw the whole lot in one go.
780 dfns->setup(ctx, xfi);
782 while (nsteps-- > 0) {
785 X += (cellwidth - dfns->width(ctx, xfi, string, start, step)) / 2;
787 dfns->draw(ctx, xfi, X, y, string, start, step);
789 dfns->draw(ctx, xfi, X + shadowoffset, y, string, start, step);
796 static void x11font_draw_text(unifont_drawctx *ctx, unifont *font,
797 int x, int y, const wchar_t *string, int len,
798 int wide, int bold, int cellwidth)
800 struct x11font *xfont = (struct x11font *)font;
802 int shadowoffset = 0;
803 int mult = (wide ? 2 : 1);
804 int index = 2 * (int)ctx->type;
810 * Decide which subfont we're using, and whether we have to
813 if (xfont->shadowalways && bold) {
814 shadowoffset = xfont->shadowoffset;
817 sfid = 2 * wide + bold;
818 if (!xfont->fonts[sfid].allocated)
819 x11_alloc_subfont(xfont, sfid);
820 if (bold && !xfont->fonts[sfid].xfs) {
822 shadowoffset = xfont->shadowoffset;
823 sfid = 2 * wide + bold;
824 if (!xfont->fonts[sfid].allocated)
825 x11_alloc_subfont(xfont, sfid);
828 if (!xfont->fonts[sfid].xfs)
829 return; /* we've tried our best, but no luck */
831 if (xfont->sixteen_bit) {
833 * This X font has 16-bit character indices, which means
834 * we can directly use our Unicode input string.
839 xcs = snewn(len, XChar2b);
840 for (i = 0; i < len; i++) {
841 xcs[i].byte1 = string[i] >> 8;
842 xcs[i].byte2 = string[i];
845 x11font_really_draw_text(x11font_drawfuncs + index + 1, ctx,
846 &xfont->fonts[sfid], x, y,
847 xcs, len, shadowoffset,
848 xfont->variable, cellwidth * mult);
852 * This X font has 8-bit indices, so we must convert to the
853 * appropriate character set.
855 char *sbstring = snewn(len+1, char);
856 int sblen = wc_to_mb(xfont->real_charset, 0, string, len,
857 sbstring, len+1, ".", NULL, NULL);
858 x11font_really_draw_text(x11font_drawfuncs + index + 0, ctx,
859 &xfont->fonts[sfid], x, y,
860 sbstring, sblen, shadowoffset,
861 xfont->variable, cellwidth * mult);
866 static void x11font_enum_fonts(GtkWidget *widget,
867 fontsel_add_entry callback, void *callback_ctx)
869 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
872 int nnames, i, max, tmpsize;
876 fontnames = XListFonts(disp, "*", max, &nnames);
878 XFreeFontNames(fontnames);
886 for (i = 0; i < nnames; i++) {
887 if (fontnames[i][0] == '-') {
889 * Dismember an XLFD and convert it into the format
890 * we'll be using in the font selector.
892 char *components[14];
893 char *p, *font, *style, *stylekey, *charset;
894 int j, weightkey, slantkey, setwidthkey;
895 int thistmpsize, fontsize, flags;
897 thistmpsize = 4 * strlen(fontnames[i]) + 256;
898 if (tmpsize < thistmpsize) {
899 tmpsize = thistmpsize;
900 tmp = sresize(tmp, tmpsize, char);
902 strcpy(tmp, fontnames[i]);
905 for (j = 0; j < 14; j++) {
909 while (*p && *p != '-')
915 * Font name is made up of fields 0 and 1, in reverse
916 * order with parentheses. (This is what the GTK 1.2 X
917 * font selector does, and it seems to come out
918 * looking reasonably sensible.)
921 p += 1 + sprintf(p, "%s (%s)", components[1], components[0]);
924 * Charset is made up of fields 12 and 13.
927 p += 1 + sprintf(p, "%s-%s", components[12], components[13]);
930 * Style is a mixture of quite a lot of the fields,
931 * with some strange formatting.
934 p += sprintf(p, "%s", components[2][0] ? components[2] :
936 if (!g_ascii_strcasecmp(components[3], "i"))
937 p += sprintf(p, " italic");
938 else if (!g_ascii_strcasecmp(components[3], "o"))
939 p += sprintf(p, " oblique");
940 else if (!g_ascii_strcasecmp(components[3], "ri"))
941 p += sprintf(p, " reverse italic");
942 else if (!g_ascii_strcasecmp(components[3], "ro"))
943 p += sprintf(p, " reverse oblique");
944 else if (!g_ascii_strcasecmp(components[3], "ot"))
945 p += sprintf(p, " other-slant");
946 if (components[4][0] && g_ascii_strcasecmp(components[4], "normal"))
947 p += sprintf(p, " %s", components[4]);
948 if (!g_ascii_strcasecmp(components[10], "m"))
949 p += sprintf(p, " [M]");
950 if (!g_ascii_strcasecmp(components[10], "c"))
951 p += sprintf(p, " [C]");
952 if (components[5][0])
953 p += sprintf(p, " %s", components[5]);
956 * Style key is the same stuff as above, but with a
957 * couple of transformations done on it to make it
958 * sort more sensibly.
962 if (!g_ascii_strcasecmp(components[2], "medium") ||
963 !g_ascii_strcasecmp(components[2], "regular") ||
964 !g_ascii_strcasecmp(components[2], "normal") ||
965 !g_ascii_strcasecmp(components[2], "book"))
967 else if (!g_ascii_strncasecmp(components[2], "demi", 4) ||
968 !g_ascii_strncasecmp(components[2], "semi", 4))
972 if (!g_ascii_strcasecmp(components[3], "r"))
974 else if (!g_ascii_strncasecmp(components[3], "r", 1))
978 if (!g_ascii_strcasecmp(components[4], "normal"))
983 p += sprintf(p, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
985 (int)strlen(components[2]), components[2],
987 (int)strlen(components[3]), components[3],
989 (int)strlen(components[4]), components[4],
990 (int)strlen(components[10]), components[10],
991 (int)strlen(components[5]), components[5]);
993 assert(p - tmp < thistmpsize);
996 * Size is in pixels, for our application, so we
997 * derive it directly from the pixel size field,
1000 fontsize = atoi(components[6]);
1003 * Flags: we need to know whether this is a monospaced
1004 * font, which we do by examining the spacing field
1007 flags = FONTFLAG_SERVERSIDE;
1008 if (!strchr("CcMm", components[10][0]))
1009 flags |= FONTFLAG_NONMONOSPACED;
1012 * Not sure why, but sometimes the X server will
1013 * deliver dummy font types in which fontsize comes
1014 * out as zero. Filter those out.
1017 callback(callback_ctx, fontnames[i], font, charset,
1018 style, stylekey, fontsize, flags, &x11font_vtable);
1021 * This isn't an XLFD, so it must be an alias.
1022 * Transmit it with mostly null data.
1024 * It would be nice to work out if it's monospaced
1025 * here, but at the moment I can't see that being
1026 * anything but computationally hideous. Ah well.
1028 callback(callback_ctx, fontnames[i], fontnames[i], NULL,
1029 NULL, NULL, 0, FONTFLAG_SERVERALIAS, &x11font_vtable);
1032 XFreeFontNames(fontnames);
1035 static char *x11font_canonify_fontname(GtkWidget *widget, const char *name,
1036 int *size, int *flags,
1037 int resolve_aliases)
1040 * When given an X11 font name to try to make sense of for a
1041 * font selector, we must attempt to load it (to see if it
1042 * exists), and then canonify it by extracting its FONT
1043 * property, which should give its full XLFD even if what we
1044 * originally had was a wildcard.
1046 * However, we must carefully avoid canonifying font
1047 * _aliases_, unless specifically asked to, because the font
1048 * selector treats them as worthwhile in their own right.
1051 Display *disp = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
1052 Atom fontprop, fontprop2;
1055 xfs = XLoadQueryFont(disp, name);
1058 return NULL; /* didn't make sense to us, sorry */
1060 fontprop = XInternAtom(disp, "FONT", False);
1062 if (XGetFontProperty(xfs, fontprop, &ret)) {
1063 char *newname = XGetAtomName(disp, (Atom)ret);
1065 unsigned long fsize = 12;
1067 fontprop2 = XInternAtom(disp, "PIXEL_SIZE", False);
1068 if (XGetFontProperty(xfs, fontprop2, &fsize) && fsize > 0) {
1070 XFreeFont(disp, xfs);
1072 if (name[0] == '-' || resolve_aliases)
1073 *flags = FONTFLAG_SERVERSIDE;
1075 *flags = FONTFLAG_SERVERALIAS;
1077 return dupstr(name[0] == '-' || resolve_aliases ?
1083 XFreeFont(disp, xfs);
1085 return NULL; /* something went wrong */
1088 static char *x11font_scale_fontname(GtkWidget *widget, const char *name,
1091 return NULL; /* shan't */
1094 #endif /* NOT_X_WINDOWS */
1096 #if GTK_CHECK_VERSION(2,0,0)
1098 /* ----------------------------------------------------------------------
1099 * Pango font implementation (for GTK 2 only).
1102 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
1103 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
1106 static int pangofont_has_glyph(unifont *font, wchar_t glyph);
1107 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1108 int x, int y, const wchar_t *string, int len,
1109 int wide, int bold, int cellwidth);
1110 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1112 int shadowoffset, int shadowalways);
1113 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1115 int shadowoffset, int shadowalways);
1116 static void pangofont_destroy(unifont *font);
1117 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1118 void *callback_ctx);
1119 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1120 int *size, int *flags,
1121 int resolve_aliases);
1122 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1130 PangoFontDescription *desc;
1133 * The containing widget.
1137 * Data passed in to unifont_create().
1139 int bold, shadowoffset, shadowalways;
1141 * Cache of character widths, indexed by Unicode code point. In
1142 * pixels; -1 means we haven't asked Pango about this character
1146 unsigned nwidthcache;
1149 static const struct unifont_vtable pangofont_vtable = {
1151 pangofont_create_fallback,
1153 pangofont_has_glyph,
1154 pangofont_draw_text,
1155 pangofont_enum_fonts,
1156 pangofont_canonify_fontname,
1157 pangofont_scale_fontname,
1162 * This function is used to rigorously validate a
1163 * PangoFontDescription. Later versions of Pango have a nasty
1164 * habit of accepting _any_ old string as input to
1165 * pango_font_description_from_string and returning a font
1166 * description which can actually be used to display text, even if
1167 * they have to do it by falling back to their most default font.
1168 * This is doubtless helpful in some situations, but not here,
1169 * because we need to know if a Pango font string actually _makes
1170 * sense_ in order to fall back to treating it as an X font name
1171 * if it doesn't. So we check that the font family is actually one
1172 * supported by Pango.
1174 static int pangofont_check_desc_makes_sense(PangoContext *ctx,
1175 PangoFontDescription *desc)
1177 #ifndef PANGO_PRE_1POINT6
1180 PangoFontFamily **families;
1181 int i, nfamilies, matched;
1184 * Ask Pango for a list of font families, and iterate through
1185 * them to see if one of them matches the family in the
1186 * PangoFontDescription.
1188 #ifndef PANGO_PRE_1POINT6
1189 map = pango_context_get_font_map(ctx);
1192 pango_font_map_list_families(map, &families, &nfamilies);
1194 pango_context_list_families(ctx, &families, &nfamilies);
1198 for (i = 0; i < nfamilies; i++) {
1199 if (!g_ascii_strcasecmp(pango_font_family_get_name(families[i]),
1200 pango_font_description_get_family(desc))) {
1210 static unifont *pangofont_create_internal(GtkWidget *widget,
1212 PangoFontDescription *desc,
1214 int shadowoffset, int shadowalways)
1216 struct pangofont *pfont;
1217 #ifndef PANGO_PRE_1POINT6
1221 PangoFontMetrics *metrics;
1223 #ifndef PANGO_PRE_1POINT6
1224 map = pango_context_get_font_map(ctx);
1226 pango_font_description_free(desc);
1229 fset = pango_font_map_load_fontset(map, ctx, desc,
1230 pango_context_get_language(ctx));
1232 fset = pango_context_load_fontset(ctx, desc,
1233 pango_context_get_language(ctx));
1236 pango_font_description_free(desc);
1239 metrics = pango_fontset_get_metrics(fset);
1241 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1242 pango_font_description_free(desc);
1243 g_object_unref(fset);
1247 pfont = snew(struct pangofont);
1248 pfont->u.vt = &pangofont_vtable;
1250 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics));
1251 pfont->u.ascent = PANGO_PIXELS(pango_font_metrics_get_ascent(metrics));
1252 pfont->u.descent = PANGO_PIXELS(pango_font_metrics_get_descent(metrics));
1253 pfont->u.height = pfont->u.ascent + pfont->u.descent;
1254 pfont->u.want_fallback = FALSE;
1255 #ifdef DRAW_TEXT_CAIRO
1256 pfont->u.preferred_drawtype = DRAWTYPE_CAIRO;
1257 #elif defined DRAW_TEXT_GDK
1258 pfont->u.preferred_drawtype = DRAWTYPE_GDK;
1260 #error No drawtype available at all
1262 /* The Pango API is hardwired to UTF-8 */
1263 pfont->u.public_charset = CS_UTF8;
1266 pfont->widget = widget;
1268 pfont->shadowoffset = shadowoffset;
1269 pfont->shadowalways = shadowalways;
1270 pfont->widthcache = NULL;
1271 pfont->nwidthcache = 0;
1273 pango_font_metrics_unref(metrics);
1275 return (unifont *)pfont;
1278 static unifont *pangofont_create(GtkWidget *widget, const char *name,
1280 int shadowoffset, int shadowalways)
1283 PangoFontDescription *desc;
1285 desc = pango_font_description_from_string(name);
1288 ctx = gtk_widget_get_pango_context(widget);
1290 pango_font_description_free(desc);
1293 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1294 pango_font_description_free(desc);
1297 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1298 shadowoffset, shadowalways);
1301 static unifont *pangofont_create_fallback(GtkWidget *widget, int height,
1303 int shadowoffset, int shadowalways)
1306 PangoFontDescription *desc;
1308 desc = pango_font_description_from_string("Monospace");
1311 ctx = gtk_widget_get_pango_context(widget);
1313 pango_font_description_free(desc);
1316 pango_font_description_set_absolute_size(desc, height * PANGO_SCALE);
1317 return pangofont_create_internal(widget, ctx, desc, wide, bold,
1318 shadowoffset, shadowalways);
1321 static void pangofont_destroy(unifont *font)
1323 struct pangofont *pfont = (struct pangofont *)font;
1324 pango_font_description_free(pfont->desc);
1325 sfree(pfont->widthcache);
1326 g_object_unref(pfont->fset);
1330 static int pangofont_char_width(PangoLayout *layout, struct pangofont *pfont,
1331 wchar_t uchr, const char *utfchr, int utflen)
1334 * Here we check whether a character has the same width as the
1335 * character cell it'll be drawn in. Because profiling showed that
1336 * pango_layout_get_pixel_extents() was a huge bottleneck when we
1337 * were calling it every time we needed to know this, we instead
1338 * call it only on characters we don't already know about, and
1339 * cache the results.
1342 if ((unsigned)uchr >= pfont->nwidthcache) {
1343 unsigned newsize = ((int)uchr + 0x100) & ~0xFF;
1344 pfont->widthcache = sresize(pfont->widthcache, newsize, int);
1345 while (pfont->nwidthcache < newsize)
1346 pfont->widthcache[pfont->nwidthcache++] = -1;
1349 if (pfont->widthcache[uchr] < 0) {
1350 PangoRectangle rect;
1351 pango_layout_set_text(layout, utfchr, utflen);
1352 pango_layout_get_pixel_extents(layout, NULL, &rect);
1353 pfont->widthcache[uchr] = rect.width;
1356 return pfont->widthcache[uchr];
1359 static int pangofont_has_glyph(unifont *font, wchar_t glyph)
1361 /* Pango implements font fallback, so assume it has everything */
1365 #ifdef DRAW_TEXT_GDK
1366 static void pango_gdk_draw_layout(unifont_drawctx *ctx,
1367 gint x, gint y, PangoLayout *layout)
1369 gdk_draw_layout(ctx->u.gdk.target, ctx->u.gdk.gc, x, y, layout);
1373 #ifdef DRAW_TEXT_CAIRO
1374 static void pango_cairo_draw_layout(unifont_drawctx *ctx,
1375 gint x, gint y, PangoLayout *layout)
1377 cairo_move_to(ctx->u.cairo.cr, x, y);
1378 pango_cairo_show_layout(ctx->u.cairo.cr, layout);
1382 static void pangofont_draw_text(unifont_drawctx *ctx, unifont *font,
1383 int x, int y, const wchar_t *string, int len,
1384 int wide, int bold, int cellwidth)
1386 struct pangofont *pfont = (struct pangofont *)font;
1387 PangoLayout *layout;
1388 PangoRectangle rect;
1389 char *utfstring, *utfptr;
1391 int shadowbold = FALSE;
1392 void (*draw_layout)(unifont_drawctx *ctx,
1393 gint x, gint y, PangoLayout *layout) = NULL;
1395 #ifdef DRAW_TEXT_GDK
1396 if (ctx->type == DRAWTYPE_GDK) {
1397 draw_layout = pango_gdk_draw_layout;
1400 #ifdef DRAW_TEXT_CAIRO
1401 if (ctx->type == DRAWTYPE_CAIRO) {
1402 draw_layout = pango_cairo_draw_layout;
1409 y -= pfont->u.ascent;
1411 layout = pango_layout_new(gtk_widget_get_pango_context(pfont->widget));
1412 pango_layout_set_font_description(layout, pfont->desc);
1413 if (bold > pfont->bold) {
1414 if (pfont->shadowalways)
1417 PangoFontDescription *desc2 =
1418 pango_font_description_copy_static(pfont->desc);
1419 pango_font_description_set_weight(desc2, PANGO_WEIGHT_BOLD);
1420 pango_layout_set_font_description(layout, desc2);
1425 * Pango always expects UTF-8, so convert the input wide character
1428 utfstring = snewn(len*6+1, char); /* UTF-8 has max 6 bytes/char */
1429 utflen = wc_to_mb(CS_UTF8, 0, string, len,
1430 utfstring, len*6+1, ".", NULL, NULL);
1433 while (utflen > 0) {
1437 * We want to display every character from this string in
1438 * the centre of its own character cell. In the worst case,
1439 * this requires a separate text-drawing call for each
1440 * character; but in the common case where the font is
1441 * properly fixed-width, we can draw many characters in one
1442 * go which is much faster.
1444 * This still isn't really ideal. If you look at what
1445 * happens in the X protocol as a result of all of this, you
1446 * find - naturally enough - that each call to
1447 * gdk_draw_layout() generates a separate set of X RENDER
1448 * operations involving creating a picture, setting a clip
1449 * rectangle, doing some drawing and undoing the whole lot.
1450 * In an ideal world, we should _always_ be able to turn the
1451 * contents of this loop into a single RenderCompositeGlyphs
1452 * operation which internally specifies inter-character
1453 * deltas to get the spacing right, which would give us full
1454 * speed _even_ in the worst case of a non-fixed-width font.
1455 * However, Pango's architecture and documentation are so
1456 * unhelpful that I have no idea how if at all to persuade
1461 * Start by extracting a single UTF-8 character from the
1465 while (clen < utflen &&
1466 (unsigned char)utfptr[clen] >= 0x80 &&
1467 (unsigned char)utfptr[clen] < 0xC0)
1471 if (is_rtl(string[0]) ||
1472 pangofont_char_width(layout, pfont, string[n-1],
1473 utfptr, clen) != cellwidth) {
1475 * If this character is a right-to-left one, or has an
1476 * unusual width, then we must display it on its own.
1480 * Try to amalgamate a contiguous string of characters
1481 * with the expected sensible width, for the common case
1482 * in which we're using a monospaced font and everything
1483 * works as expected.
1485 while (clen < utflen) {
1487 clen++; /* skip UTF-8 introducer byte */
1488 while (clen < utflen &&
1489 (unsigned char)utfptr[clen] >= 0x80 &&
1490 (unsigned char)utfptr[clen] < 0xC0)
1493 if (pangofont_char_width(layout, pfont,
1494 string[n-1], utfptr + oldclen,
1495 clen - oldclen) != cellwidth) {
1503 pango_layout_set_text(layout, utfptr, clen);
1504 pango_layout_get_pixel_extents(layout, NULL, &rect);
1507 x + (n*cellwidth - rect.width)/2,
1508 y + (pfont->u.height - rect.height)/2, layout);
1511 x + (n*cellwidth - rect.width)/2 + pfont->shadowoffset,
1512 y + (pfont->u.height - rect.height)/2, layout);
1522 g_object_unref(layout);
1526 * Dummy size value to be used when converting a
1527 * PangoFontDescription of a scalable font to a string for
1530 #define PANGO_DUMMY_SIZE 12
1532 static void pangofont_enum_fonts(GtkWidget *widget, fontsel_add_entry callback,
1536 #ifndef PANGO_PRE_1POINT6
1539 PangoFontFamily **families;
1542 ctx = gtk_widget_get_pango_context(widget);
1547 * Ask Pango for a list of font families, and iterate through
1550 #ifndef PANGO_PRE_1POINT6
1551 map = pango_context_get_font_map(ctx);
1554 pango_font_map_list_families(map, &families, &nfamilies);
1556 pango_context_list_families(ctx, &families, &nfamilies);
1558 for (i = 0; i < nfamilies; i++) {
1559 PangoFontFamily *family = families[i];
1560 const char *familyname;
1562 PangoFontFace **faces;
1566 * Set up our flags for this font family, and get the name
1569 flags = FONTFLAG_CLIENTSIDE;
1570 #ifndef PANGO_PRE_1POINT4
1572 * In very early versions of Pango, we can't tell
1573 * monospaced fonts from non-monospaced.
1575 if (!pango_font_family_is_monospace(family))
1576 flags |= FONTFLAG_NONMONOSPACED;
1578 familyname = pango_font_family_get_name(family);
1581 * Go through the available font faces in this family.
1583 pango_font_family_list_faces(family, &faces, &nfaces);
1584 for (j = 0; j < nfaces; j++) {
1585 PangoFontFace *face = faces[j];
1586 PangoFontDescription *desc;
1587 const char *facename;
1589 int k, nsizes, dummysize;
1592 * Get the face name string.
1594 facename = pango_font_face_get_face_name(face);
1597 * Set up a font description with what we've got so
1598 * far. We'll fill in the size field manually and then
1599 * call pango_font_description_to_string() to give the
1600 * full real name of the specific font.
1602 desc = pango_font_face_describe(face);
1605 * See if this font has a list of specific sizes.
1607 #ifndef PANGO_PRE_1POINT4
1608 pango_font_face_list_sizes(face, &sizes, &nsizes);
1611 * In early versions of Pango, that call wasn't
1612 * supported; we just have to assume everything is
1619 * Write a single entry with a dummy size.
1621 dummysize = PANGO_DUMMY_SIZE * PANGO_SCALE;
1627 * If so, go through them one by one.
1629 for (k = 0; k < nsizes; k++) {
1633 pango_font_description_set_size(desc, sizes[k]);
1635 fullname = pango_font_description_to_string(desc);
1638 * Construct the sorting key for font styles.
1644 n = pango_font_description_get_weight(desc);
1645 /* Weight: normal, then lighter, then bolder */
1646 if (n <= PANGO_WEIGHT_NORMAL)
1647 n = PANGO_WEIGHT_NORMAL - n;
1648 p += sprintf(p, "%4d", n);
1650 n = pango_font_description_get_style(desc);
1651 p += sprintf(p, " %2d", n);
1653 n = pango_font_description_get_stretch(desc);
1654 /* Stretch: closer to normal sorts earlier */
1655 n = 2 * abs(PANGO_STRETCH_NORMAL - n) +
1656 (n < PANGO_STRETCH_NORMAL);
1657 p += sprintf(p, " %2d", n);
1659 n = pango_font_description_get_variant(desc);
1660 p += sprintf(p, " %2d", n);
1665 * Got everything. Hand off to the callback.
1666 * (The charset string is NULL, because only
1667 * server-side X fonts use it.)
1669 callback(callback_ctx, fullname, familyname, NULL, facename,
1671 (sizes == &dummysize ? 0 : PANGO_PIXELS(sizes[k])),
1672 flags, &pangofont_vtable);
1676 if (sizes != &dummysize)
1679 pango_font_description_free(desc);
1686 static char *pangofont_canonify_fontname(GtkWidget *widget, const char *name,
1687 int *size, int *flags,
1688 int resolve_aliases)
1691 * When given a Pango font name to try to make sense of for a
1692 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1693 * extract its original size (in pixels) into the `size' field.
1696 #ifndef PANGO_PRE_1POINT6
1699 PangoFontDescription *desc;
1701 PangoFontMetrics *metrics;
1702 char *newname, *retname;
1704 desc = pango_font_description_from_string(name);
1707 ctx = gtk_widget_get_pango_context(widget);
1709 pango_font_description_free(desc);
1712 if (!pangofont_check_desc_makes_sense(ctx, desc)) {
1713 pango_font_description_free(desc);
1716 #ifndef PANGO_PRE_1POINT6
1717 map = pango_context_get_font_map(ctx);
1719 pango_font_description_free(desc);
1722 fset = pango_font_map_load_fontset(map, ctx, desc,
1723 pango_context_get_language(ctx));
1725 fset = pango_context_load_fontset(ctx, desc,
1726 pango_context_get_language(ctx));
1729 pango_font_description_free(desc);
1732 metrics = pango_fontset_get_metrics(fset);
1734 pango_font_metrics_get_approximate_digit_width(metrics) == 0) {
1735 pango_font_description_free(desc);
1736 g_object_unref(fset);
1740 *size = PANGO_PIXELS(pango_font_description_get_size(desc));
1741 *flags = FONTFLAG_CLIENTSIDE;
1742 pango_font_description_set_size(desc, PANGO_DUMMY_SIZE * PANGO_SCALE);
1743 newname = pango_font_description_to_string(desc);
1744 retname = dupstr(newname);
1747 pango_font_metrics_unref(metrics);
1748 pango_font_description_free(desc);
1749 g_object_unref(fset);
1754 static char *pangofont_scale_fontname(GtkWidget *widget, const char *name,
1757 PangoFontDescription *desc;
1758 char *newname, *retname;
1760 desc = pango_font_description_from_string(name);
1763 pango_font_description_set_size(desc, size * PANGO_SCALE);
1764 newname = pango_font_description_to_string(desc);
1765 retname = dupstr(newname);
1767 pango_font_description_free(desc);
1772 #endif /* GTK_CHECK_VERSION(2,0,0) */
1774 /* ----------------------------------------------------------------------
1775 * Outermost functions which do the vtable dispatch.
1779 * Complete list of font-type subclasses. Listed in preference
1780 * order for unifont_create(). (That is, in the extremely unlikely
1781 * event that the same font name is valid as both a Pango and an
1782 * X11 font, it will be interpreted as the former in the absence
1783 * of an explicit type-disambiguating prefix.)
1785 * The 'multifont' subclass is omitted here, as discussed above.
1787 static const struct unifont_vtable *unifont_types[] = {
1788 #if GTK_CHECK_VERSION(2,0,0)
1791 #ifndef NOT_X_WINDOWS
1797 * Function which takes a font name and processes the optional
1798 * scheme prefix. Returns the tail of the font name suitable for
1799 * passing to individual font scheme functions, and also provides
1800 * a subrange of the unifont_types[] array above.
1802 * The return values `start' and `end' denote a half-open interval
1803 * in unifont_types[]; that is, the correct way to iterate over
1806 * for (i = start; i < end; i++) {...}
1808 static const char *unifont_do_prefix(const char *name, int *start, int *end)
1810 int colonpos = strcspn(name, ":");
1813 if (name[colonpos]) {
1815 * There's a colon prefix on the font name. Use it to work
1816 * out which subclass to use.
1818 for (i = 0; i < lenof(unifont_types); i++) {
1819 if (strlen(unifont_types[i]->prefix) == colonpos &&
1820 !strncmp(unifont_types[i]->prefix, name, colonpos)) {
1823 return name + colonpos + 1;
1827 * None matched, so return an empty scheme list to prevent
1828 * any scheme from being called at all.
1831 return name + colonpos + 1;
1834 * No colon prefix, so just use all the subclasses.
1837 *end = lenof(unifont_types);
1842 unifont *unifont_create(GtkWidget *widget, const char *name, int wide,
1843 int bold, int shadowoffset, int shadowalways)
1847 name = unifont_do_prefix(name, &start, &end);
1849 for (i = start; i < end; i++) {
1850 unifont *ret = unifont_types[i]->create(widget, name, wide, bold,
1851 shadowoffset, shadowalways);
1855 return NULL; /* font not found in any scheme */
1858 void unifont_destroy(unifont *font)
1860 font->vt->destroy(font);
1863 void unifont_draw_text(unifont_drawctx *ctx, unifont *font,
1864 int x, int y, const wchar_t *string, int len,
1865 int wide, int bold, int cellwidth)
1867 font->vt->draw_text(ctx, font, x, y, string, len, wide, bold, cellwidth);
1870 /* ----------------------------------------------------------------------
1871 * Multiple-font wrapper. This is a type of unifont which encapsulates
1872 * up to two other unifonts, permitting missing glyphs in the main
1873 * font to be filled in by a fallback font.
1875 * This is a type of unifont just like the previous two, but it has a
1876 * separate constructor which is manually called by the client, so it
1877 * doesn't appear in the list of available font types enumerated by
1878 * unifont_create. This means it's not used by unifontsel either, so
1879 * it doesn't need to support any methods except draw_text and
1883 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font,
1884 int x, int y, const wchar_t *string, int len,
1885 int wide, int bold, int cellwidth);
1886 static void multifont_destroy(unifont *font);
1894 static const struct unifont_vtable multifont_vtable = {
1895 NULL, /* creation is done specially */
1899 multifont_draw_text,
1906 unifont *multifont_create(GtkWidget *widget, const char *name,
1908 int shadowoffset, int shadowalways)
1911 unifont *font, *fallback;
1912 struct multifont *mfont;
1914 font = unifont_create(widget, name, wide, bold,
1915 shadowoffset, shadowalways);
1920 if (font->want_fallback) {
1921 for (i = 0; i < lenof(unifont_types); i++) {
1922 if (unifont_types[i]->create_fallback) {
1923 fallback = unifont_types[i]->create_fallback
1924 (widget, font->height, wide, bold,
1925 shadowoffset, shadowalways);
1933 * Construct our multifont. Public members are all copied from the
1934 * primary font we're wrapping.
1936 mfont = snew(struct multifont);
1937 mfont->u.vt = &multifont_vtable;
1938 mfont->u.width = font->width;
1939 mfont->u.ascent = font->ascent;
1940 mfont->u.descent = font->descent;
1941 mfont->u.height = font->height;
1942 mfont->u.public_charset = font->public_charset;
1943 mfont->u.want_fallback = FALSE; /* shouldn't be needed, but just in case */
1944 mfont->u.preferred_drawtype = font->preferred_drawtype;
1946 mfont->fallback = fallback;
1948 return (unifont *)mfont;
1951 static void multifont_destroy(unifont *font)
1953 struct multifont *mfont = (struct multifont *)font;
1954 unifont_destroy(mfont->main);
1955 if (mfont->fallback)
1956 unifont_destroy(mfont->fallback);
1960 static void multifont_draw_text(unifont_drawctx *ctx, unifont *font, int x,
1961 int y, const wchar_t *string, int len,
1962 int wide, int bold, int cellwidth)
1964 struct multifont *mfont = (struct multifont *)font;
1970 * Find a maximal sequence of characters which are, or are
1971 * not, supported by our main font.
1973 ok = mfont->main->vt->has_glyph(mfont->main, string[0]);
1976 !mfont->main->vt->has_glyph(mfont->main, string[i]) == !ok;
1982 f = ok ? mfont->main : mfont->fallback;
1984 unifont_draw_text(ctx, f, x, y, string, i, wide, bold, cellwidth);
1991 /* ----------------------------------------------------------------------
1992 * Utility routine used by the code below, and also gtkdlg.c.
1995 void get_label_text_dimensions(const char *text, int *width, int *height)
1998 * Determine the dimensions of a piece of text in the standard
1999 * font used in GTK interface elements like labels. We do this by
2000 * instantiating an actual GtkLabel, and then querying its size.
2002 * But GTK2 and GTK3 require us to query the size completely
2003 * differently. I'm sure there ought to be an easier approach than
2004 * the way I'm doing this in GTK3, too!
2006 GtkWidget *label = gtk_label_new(text);
2008 #if GTK_CHECK_VERSION(3,0,0)
2009 PangoLayout *layout = gtk_label_get_layout(GTK_LABEL(label));
2010 PangoRectangle logrect;
2011 pango_layout_get_extents(layout, NULL, &logrect);
2013 *width = logrect.width / PANGO_SCALE;
2015 *height = logrect.height / PANGO_SCALE;
2018 gtk_widget_size_request(label, &req);
2022 *height = req.height;
2025 g_object_ref_sink(G_OBJECT(label));
2026 #if GTK_CHECK_VERSION(2,10,0)
2027 g_object_unref(label);
2031 #if GTK_CHECK_VERSION(2,0,0)
2033 /* ----------------------------------------------------------------------
2034 * Implementation of a unified font selector. Used on GTK 2 only;
2035 * for GTK 1 we still use the standard font selector.
2038 typedef struct fontinfo fontinfo;
2040 typedef struct unifontsel_internal {
2041 /* This must be the structure's first element, for cross-casting */
2043 GtkListStore *family_model, *style_model, *size_model;
2044 GtkWidget *family_list, *style_list, *size_entry, *size_list;
2045 GtkWidget *filter_buttons[4];
2046 int n_filter_buttons;
2047 GtkWidget *preview_area;
2048 #ifndef NO_BACKING_PIXMAPS
2049 GdkPixmap *preview_pixmap;
2051 int preview_width, preview_height;
2052 GdkColor preview_fg, preview_bg;
2054 tree234 *fonts_by_realname, *fonts_by_selorder;
2056 int selsize, intendedsize;
2057 int inhibit_response; /* inhibit callbacks when we change GUI controls */
2058 } unifontsel_internal;
2061 * The structure held in the tree234s. All the string members are
2062 * part of the same allocated area, so don't need freeing
2067 char *family, *charset, *style, *stylekey;
2070 * Fallback sorting key, to permit multiple identical entries
2071 * to exist in the selorder tree.
2075 * Indices mapping fontinfo structures to indices in the list
2076 * boxes. sizeindex is irrelevant if the font is scalable
2079 int familyindex, styleindex, sizeindex;
2081 * The class of font.
2083 const struct unifont_vtable *fontclass;
2086 struct fontinfo_realname_find {
2087 const char *realname;
2091 static int strnullcasecmp(const char *a, const char *b)
2096 * If exactly one of the inputs is NULL, it compares before
2099 if ((i = (!b) - (!a)) != 0)
2103 * NULL compares equal.
2109 * Otherwise, ordinary strcasecmp.
2111 return g_ascii_strcasecmp(a, b);
2114 static int fontinfo_realname_compare(void *av, void *bv)
2116 fontinfo *a = (fontinfo *)av;
2117 fontinfo *b = (fontinfo *)bv;
2120 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2122 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2123 return ((a->flags & FONTFLAG_SORT_MASK) <
2124 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2128 static int fontinfo_realname_find(void *av, void *bv)
2130 struct fontinfo_realname_find *a = (struct fontinfo_realname_find *)av;
2131 fontinfo *b = (fontinfo *)bv;
2134 if ((i = strnullcasecmp(a->realname, b->realname)) != 0)
2136 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2137 return ((a->flags & FONTFLAG_SORT_MASK) <
2138 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2142 static int fontinfo_selorder_compare(void *av, void *bv)
2144 fontinfo *a = (fontinfo *)av;
2145 fontinfo *b = (fontinfo *)bv;
2147 if ((i = strnullcasecmp(a->family, b->family)) != 0)
2150 * Font class comes immediately after family, so that fonts
2151 * from different classes with the same family
2153 if ((a->flags & FONTFLAG_SORT_MASK) != (b->flags & FONTFLAG_SORT_MASK))
2154 return ((a->flags & FONTFLAG_SORT_MASK) <
2155 (b->flags & FONTFLAG_SORT_MASK) ? -1 : +1);
2156 if ((i = strnullcasecmp(a->charset, b->charset)) != 0)
2158 if ((i = strnullcasecmp(a->stylekey, b->stylekey)) != 0)
2160 if ((i = strnullcasecmp(a->style, b->style)) != 0)
2162 if (a->size != b->size)
2163 return (a->size < b->size ? -1 : +1);
2164 if (a->index != b->index)
2165 return (a->index < b->index ? -1 : +1);
2169 static void unifontsel_draw_preview_text(unifontsel_internal *fs);
2171 static void unifontsel_deselect(unifontsel_internal *fs)
2173 fs->selected = NULL;
2174 gtk_list_store_clear(fs->style_model);
2175 gtk_list_store_clear(fs->size_model);
2176 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
2177 gtk_widget_set_sensitive(fs->size_entry, FALSE);
2178 unifontsel_draw_preview_text(fs);
2181 static void unifontsel_setup_familylist(unifontsel_internal *fs)
2184 int i, listindex, minpos = -1, maxpos = -1;
2185 char *currfamily = NULL;
2189 fs->inhibit_response = TRUE;
2191 gtk_list_store_clear(fs->family_model);
2195 * Search through the font tree for anything matching our
2196 * current filter criteria. When we find one, add its font
2197 * name to the list box.
2199 for (i = 0 ;; i++) {
2200 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2202 * info may be NULL if we've just run off the end of the
2203 * tree. We must still do a processing pass in that
2204 * situation, in case we had an unfinished font record in
2207 if (info && (info->flags &~ fs->filter_flags)) {
2208 info->familyindex = -1;
2209 continue; /* we're filtering out this font */
2211 if (!info || strnullcasecmp(currfamily, info->family) ||
2212 currflags != (info->flags & FONTFLAG_SORT_MASK)) {
2214 * We've either finished a family, or started a new
2218 gtk_list_store_append(fs->family_model, &iter);
2219 gtk_list_store_set(fs->family_model, &iter,
2220 0, currfamily, 1, minpos, 2, maxpos+1, -1);
2225 currfamily = info->family;
2226 currflags = info->flags & FONTFLAG_SORT_MASK;
2230 break; /* now we're done */
2231 info->familyindex = listindex;
2236 * If we've just filtered out the previously selected font,
2237 * deselect it thoroughly.
2239 if (fs->selected && fs->selected->familyindex < 0)
2240 unifontsel_deselect(fs);
2242 fs->inhibit_response = FALSE;
2245 static void unifontsel_setup_stylelist(unifontsel_internal *fs,
2249 int i, listindex, minpos = -1, maxpos = -1, started = FALSE;
2250 char *currcs = NULL, *currstyle = NULL;
2253 gtk_list_store_clear(fs->style_model);
2258 * Search through the font tree for anything matching our
2259 * current filter criteria. When we find one, add its charset
2260 * and/or style name to the list box.
2262 for (i = start; i <= end; i++) {
2266 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2268 * info may be NULL if we've just run off the end of the
2269 * relevant data. We must still do a processing pass in
2270 * that situation, in case we had an unfinished font
2271 * record in progress.
2273 if (info && (info->flags &~ fs->filter_flags)) {
2274 info->styleindex = -1;
2275 continue; /* we're filtering out this font */
2277 if (!info || !started || strnullcasecmp(currcs, info->charset) ||
2278 strnullcasecmp(currstyle, info->style)) {
2280 * We've either finished a style/charset, or started a
2285 gtk_list_store_append(fs->style_model, &iter);
2286 gtk_list_store_set(fs->style_model, &iter,
2287 0, currstyle, 1, minpos, 2, maxpos+1,
2293 if (info->charset && strnullcasecmp(currcs, info->charset)) {
2294 gtk_list_store_append(fs->style_model, &iter);
2295 gtk_list_store_set(fs->style_model, &iter,
2296 0, info->charset, 1, -1, 2, -1,
2300 currcs = info->charset;
2301 currstyle = info->style;
2305 break; /* now we're done */
2306 info->styleindex = listindex;
2311 static const int unifontsel_default_sizes[] = { 10, 12, 14, 16, 20, 24, 32 };
2313 static void unifontsel_setup_sizelist(unifontsel_internal *fs,
2321 gtk_list_store_clear(fs->size_model);
2325 * Search through the font tree for anything matching our
2326 * current filter criteria. When we find one, add its font
2327 * name to the list box.
2329 for (i = start; i < end; i++) {
2330 info = (fontinfo *)index234(fs->fonts_by_selorder, i);
2331 if (info->flags &~ fs->filter_flags) {
2332 info->sizeindex = -1;
2333 continue; /* we're filtering out this font */
2336 sprintf(sizetext, "%d", info->size);
2337 info->sizeindex = listindex;
2338 gtk_list_store_append(fs->size_model, &iter);
2339 gtk_list_store_set(fs->size_model, &iter,
2340 0, sizetext, 1, i, 2, info->size, -1);
2348 for (j = 0; j < lenof(unifontsel_default_sizes); j++) {
2349 sprintf(sizetext, "%d", unifontsel_default_sizes[j]);
2350 gtk_list_store_append(fs->size_model, &iter);
2351 gtk_list_store_set(fs->size_model, &iter, 0, sizetext, 1, i,
2352 2, unifontsel_default_sizes[j], -1);
2359 static void unifontsel_set_filter_buttons(unifontsel_internal *fs)
2363 for (i = 0; i < fs->n_filter_buttons; i++) {
2364 int flagbit = GPOINTER_TO_INT(g_object_get_data
2365 (G_OBJECT(fs->filter_buttons[i]),
2367 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs->filter_buttons[i]),
2368 !!(fs->filter_flags & flagbit));
2372 static void unifontsel_draw_preview_text_inner(unifont_drawctx *dctx,
2373 unifontsel_internal *fs)
2376 char *sizename = NULL;
2377 fontinfo *info = fs->selected;
2380 sizename = info->fontclass->scale_fontname
2381 (GTK_WIDGET(fs->u.window), info->realname, fs->selsize);
2382 font = info->fontclass->create(GTK_WIDGET(fs->u.window),
2383 sizename ? sizename : info->realname,
2384 FALSE, FALSE, 0, 0);
2388 #ifdef DRAW_TEXT_GDK
2389 if (dctx->type == DRAWTYPE_GDK) {
2390 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_bg);
2391 gdk_draw_rectangle(dctx->u.gdk.target, dctx->u.gdk.gc, 1, 0, 0,
2392 fs->preview_width, fs->preview_height);
2393 gdk_gc_set_foreground(dctx->u.gdk.gc, &fs->preview_fg);
2396 #ifdef DRAW_TEXT_CAIRO
2397 if (dctx->type == DRAWTYPE_CAIRO) {
2398 cairo_set_source_rgb(dctx->u.cairo.cr,
2399 fs->preview_bg.red / 65535.0,
2400 fs->preview_bg.green / 65535.0,
2401 fs->preview_bg.blue / 65535.0);
2402 cairo_paint(dctx->u.cairo.cr);
2403 cairo_set_source_rgb(dctx->u.cairo.cr,
2404 fs->preview_fg.red / 65535.0,
2405 fs->preview_fg.green / 65535.0,
2406 fs->preview_fg.blue / 65535.0);
2412 * The pangram used here is rather carefully
2413 * constructed: it contains a sequence of very narrow
2414 * letters (`jil') and a pair of adjacent very wide
2417 * If the user selects a proportional font, it will be
2418 * coerced into fixed-width character cells when used
2419 * in the actual terminal window. We therefore display
2420 * it the same way in the preview pane, so as to show
2421 * it the way it will actually be displayed - and we
2422 * deliberately pick a pangram which will show the
2423 * resulting miskerning at its worst.
2425 * We aren't trying to sell people these fonts; we're
2426 * trying to let them make an informed choice. Better
2427 * that they find out the problems with using
2428 * proportional fonts in terminal windows here than
2429 * that they go to the effort of selecting their font
2430 * and _then_ realise it was a mistake.
2432 info->fontclass->draw_text(dctx, font,
2434 L"bankrupt jilted showmen quiz convex fogey",
2435 41, FALSE, FALSE, font->width);
2436 info->fontclass->draw_text(dctx, font,
2437 0, font->ascent + font->height,
2438 L"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2439 41, FALSE, FALSE, font->width);
2441 * The ordering of punctuation here is also selected
2442 * with some specific aims in mind. I put ` and '
2443 * together because some software (and people) still
2444 * use them as matched quotes no matter what Unicode
2445 * might say on the matter, so people can quickly
2446 * check whether they look silly in a candidate font.
2447 * The sequence #_@ is there to let people judge the
2448 * suitability of the underscore as an effectively
2449 * alphabetic character (since that's how it's often
2450 * used in practice, at least by programmers).
2452 info->fontclass->draw_text(dctx, font,
2453 0, font->ascent + font->height * 2,
2454 L"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2455 42, FALSE, FALSE, font->width);
2457 info->fontclass->destroy(font);
2463 static void unifontsel_draw_preview_text(unifontsel_internal *fs)
2465 unifont_drawctx dctx;
2468 #ifndef NO_BACKING_PIXMAPS
2469 target = fs->preview_pixmap;
2471 target = gtk_widget_get_window(fs->preview_area);
2473 if (!target) /* we may be called when we haven't created everything yet */
2476 dctx.type = DRAWTYPE_DEFAULT;
2477 #ifdef DRAW_TEXT_GDK
2478 if (dctx.type == DRAWTYPE_GDK) {
2479 dctx.u.gdk.target = target;
2480 dctx.u.gdk.gc = gdk_gc_new(target);
2483 #ifdef DRAW_TEXT_CAIRO
2484 if (dctx.type == DRAWTYPE_CAIRO) {
2485 dctx.u.cairo.widget = GTK_WIDGET(fs->preview_area);
2486 dctx.u.cairo.cr = gdk_cairo_create(target);
2490 unifontsel_draw_preview_text_inner(&dctx, fs);
2492 #ifdef DRAW_TEXT_GDK
2493 if (dctx.type == DRAWTYPE_GDK) {
2494 gdk_gc_unref(dctx.u.gdk.gc);
2497 #ifdef DRAW_TEXT_CAIRO
2498 if (dctx.type == DRAWTYPE_CAIRO) {
2499 cairo_destroy(dctx.u.cairo.cr);
2503 gdk_window_invalidate_rect(gtk_widget_get_window(fs->preview_area),
2507 static void unifontsel_select_font(unifontsel_internal *fs,
2508 fontinfo *info, int size, int leftlist,
2509 int size_is_explicit)
2514 GtkTreePath *treepath;
2517 fs->inhibit_response = TRUE;
2519 fs->selected = info;
2521 if (size_is_explicit)
2522 fs->intendedsize = size;
2524 gtk_widget_set_sensitive(fs->u.ok_button, TRUE);
2527 * Find the index of this fontinfo in the selorder list.
2530 findpos234(fs->fonts_by_selorder, info, NULL, &index);
2534 * Adjust the font selector flags and redo the font family
2535 * list box, if necessary.
2537 if (leftlist <= 0 &&
2538 (fs->filter_flags | info->flags) != fs->filter_flags) {
2539 fs->filter_flags |= info->flags;
2540 unifontsel_set_filter_buttons(fs);
2541 unifontsel_setup_familylist(fs);
2545 * Find the appropriate family name and select it in the list.
2547 assert(info->familyindex >= 0);
2548 treepath = gtk_tree_path_new_from_indices(info->familyindex, -1);
2549 gtk_tree_selection_select_path
2550 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->family_list)),
2552 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->family_list),
2553 treepath, NULL, FALSE, 0.0, 0.0);
2554 success = gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model),
2557 gtk_tree_path_free(treepath);
2560 * Now set up the font style list.
2562 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter,
2563 1, &minval, 2, &maxval, -1);
2565 unifontsel_setup_stylelist(fs, minval, maxval);
2568 * Find the appropriate style name and select it in the list.
2571 assert(info->styleindex >= 0);
2572 treepath = gtk_tree_path_new_from_indices(info->styleindex, -1);
2573 gtk_tree_selection_select_path
2574 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->style_list)),
2576 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->style_list),
2577 treepath, NULL, FALSE, 0.0, 0.0);
2578 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->style_model),
2580 gtk_tree_path_free(treepath);
2583 * And set up the size list.
2585 gtk_tree_model_get(GTK_TREE_MODEL(fs->style_model), &iter,
2586 1, &minval, 2, &maxval, -1);
2588 unifontsel_setup_sizelist(fs, minval, maxval);
2591 * Find the appropriate size, and select it in the list.
2594 assert(info->sizeindex >= 0);
2595 treepath = gtk_tree_path_new_from_indices(info->sizeindex, -1);
2596 gtk_tree_selection_select_path
2597 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs->size_list)),
2599 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2600 treepath, NULL, FALSE, 0.0, 0.0);
2601 gtk_tree_path_free(treepath);
2605 for (j = 0; j < lenof(unifontsel_default_sizes); j++)
2606 if (unifontsel_default_sizes[j] == size) {
2607 treepath = gtk_tree_path_new_from_indices(j, -1);
2608 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs->size_list),
2609 treepath, NULL, FALSE);
2610 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs->size_list),
2611 treepath, NULL, FALSE, 0.0,
2613 gtk_tree_path_free(treepath);
2618 * And set up the font size text entry box.
2622 sprintf(sizetext, "%d", size);
2623 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), sizetext);
2627 unifontsel_setup_sizelist(fs, 0, 0);
2628 gtk_entry_set_text(GTK_ENTRY(fs->size_entry), "");
2632 * Grey out the font size edit box if we're not using a
2635 gtk_editable_set_editable(GTK_EDITABLE(fs->size_entry),
2636 fs->selected->size == 0);
2637 gtk_widget_set_sensitive(fs->size_entry, fs->selected->size == 0);
2639 unifontsel_draw_preview_text(fs);
2641 fs->inhibit_response = FALSE;
2644 static void unifontsel_button_toggled(GtkToggleButton *tb, gpointer data)
2646 unifontsel_internal *fs = (unifontsel_internal *)data;
2647 int newstate = gtk_toggle_button_get_active(tb);
2649 int flagbit = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(tb),
2653 newflags = fs->filter_flags | flagbit;
2655 newflags = fs->filter_flags & ~flagbit;
2657 if (fs->filter_flags != newflags) {
2658 fs->filter_flags = newflags;
2659 unifontsel_setup_familylist(fs);
2663 static void unifontsel_add_entry(void *ctx, const char *realfontname,
2664 const char *family, const char *charset,
2665 const char *style, const char *stylekey,
2666 int size, int flags,
2667 const struct unifont_vtable *fontclass)
2669 unifontsel_internal *fs = (unifontsel_internal *)ctx;
2674 totalsize = sizeof(fontinfo) + strlen(realfontname) +
2675 (family ? strlen(family) : 0) + (charset ? strlen(charset) : 0) +
2676 (style ? strlen(style) : 0) + (stylekey ? strlen(stylekey) : 0) + 10;
2677 info = (fontinfo *)smalloc(totalsize);
2678 info->fontclass = fontclass;
2679 p = (char *)info + sizeof(fontinfo);
2681 strcpy(p, realfontname);
2688 info->family = NULL;
2694 info->charset = NULL;
2703 strcpy(p, stylekey);
2706 info->stylekey = NULL;
2707 assert(p - (char *)info <= totalsize);
2709 info->flags = flags;
2710 info->index = count234(fs->fonts_by_selorder);
2713 * It's just conceivable that a misbehaving font enumerator
2714 * might tell us about the same font real name more than once,
2715 * in which case we should silently drop the new one.
2717 if (add234(fs->fonts_by_realname, info) != info) {
2722 * However, we should never get a duplicate key in the
2723 * selorder tree, because the index field carefully
2724 * disambiguates otherwise identical records.
2726 add234(fs->fonts_by_selorder, info);
2729 static fontinfo *update_for_intended_size(unifontsel_internal *fs,
2732 fontinfo info2, *below, *above;
2736 * Copy the info structure. This doesn't copy its dynamic
2737 * string fields, but that's unimportant because all we're
2738 * going to do is to adjust the size field and use it in one
2742 info2.size = fs->intendedsize;
2745 * Search in the tree to find the fontinfo structure which
2746 * best approximates the size the user last requested.
2748 below = findrelpos234(fs->fonts_by_selorder, &info2, NULL,
2752 above = index234(fs->fonts_by_selorder, pos+1);
2755 * See if we've found it exactly, which is an easy special
2756 * case. If we have, it'll be in `below' and not `above',
2757 * because we did a REL234_LE rather than REL234_LT search.
2759 if (below && !fontinfo_selorder_compare(&info2, below))
2763 * Now we've either found two suitable fonts, one smaller and
2764 * one larger, or we're at one or other extreme end of the
2765 * scale. Find out which, by NULLing out either of below and
2766 * above if it differs from this one in any respect but size
2767 * (and the disambiguating index field). Bear in mind, also,
2768 * that either one might _already_ be NULL if we're at the
2769 * extreme ends of the font list.
2772 info2.size = below->size;
2773 info2.index = below->index;
2774 if (fontinfo_selorder_compare(&info2, below))
2778 info2.size = above->size;
2779 info2.index = above->index;
2780 if (fontinfo_selorder_compare(&info2, above))
2785 * Now return whichever of above and below is non-NULL, if
2786 * that's unambiguous.
2794 * And now we really do have to make a choice about whether to
2795 * round up or down. We'll do it by rounding to nearest,
2796 * breaking ties by rounding up.
2798 if (above->size - fs->intendedsize <= fs->intendedsize - below->size)
2804 static void family_changed(GtkTreeSelection *treeselection, gpointer data)
2806 unifontsel_internal *fs = (unifontsel_internal *)data;
2807 GtkTreeModel *treemodel;
2808 GtkTreeIter treeiter;
2812 if (fs->inhibit_response) /* we made this change ourselves */
2815 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2818 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2819 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2820 info = update_for_intended_size(fs, info);
2822 return; /* _shouldn't_ happen unless font list is completely funted */
2824 fs->selsize = fs->intendedsize; /* font is scalable */
2825 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2829 static void style_changed(GtkTreeSelection *treeselection, gpointer data)
2831 unifontsel_internal *fs = (unifontsel_internal *)data;
2832 GtkTreeModel *treemodel;
2833 GtkTreeIter treeiter;
2837 if (fs->inhibit_response) /* we made this change ourselves */
2840 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2843 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, -1);
2845 return; /* somehow a charset heading got clicked */
2846 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2847 info = update_for_intended_size(fs, info);
2849 return; /* _shouldn't_ happen unless font list is completely funted */
2851 fs->selsize = fs->intendedsize; /* font is scalable */
2852 unifontsel_select_font(fs, info, info->size ? info->size : fs->selsize,
2856 static void size_changed(GtkTreeSelection *treeselection, gpointer data)
2858 unifontsel_internal *fs = (unifontsel_internal *)data;
2859 GtkTreeModel *treemodel;
2860 GtkTreeIter treeiter;
2864 if (fs->inhibit_response) /* we made this change ourselves */
2867 if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2870 gtk_tree_model_get(treemodel, &treeiter, 1, &minval, 2, &size, -1);
2871 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2872 unifontsel_select_font(fs, info, info->size ? info->size : size, 3, TRUE);
2875 static void size_entry_changed(GtkEditable *ed, gpointer data)
2877 unifontsel_internal *fs = (unifontsel_internal *)data;
2881 if (fs->inhibit_response) /* we made this change ourselves */
2884 text = gtk_entry_get_text(GTK_ENTRY(ed));
2888 assert(fs->selected->size == 0);
2889 unifontsel_select_font(fs, fs->selected, size, 3, TRUE);
2893 static void alias_resolve(GtkTreeView *treeview, GtkTreePath *path,
2894 GtkTreeViewColumn *column, gpointer data)
2896 unifontsel_internal *fs = (unifontsel_internal *)data;
2898 int minval, newsize;
2899 fontinfo *info, *newinfo;
2902 if (fs->inhibit_response) /* we made this change ourselves */
2905 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs->family_model), &iter, path);
2906 gtk_tree_model_get(GTK_TREE_MODEL(fs->family_model), &iter, 1,&minval, -1);
2907 info = (fontinfo *)index234(fs->fonts_by_selorder, minval);
2910 struct fontinfo_realname_find f;
2912 newname = info->fontclass->canonify_fontname
2913 (GTK_WIDGET(fs->u.window), info->realname, &newsize, &flags, TRUE);
2915 f.realname = newname;
2917 newinfo = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
2921 return; /* font name not in our index */
2922 if (newinfo == info)
2923 return; /* didn't change under canonification => not an alias */
2924 unifontsel_select_font(fs, newinfo,
2925 newinfo->size ? newinfo->size : newsize,
2930 #if GTK_CHECK_VERSION(3,0,0)
2931 static gint unifontsel_draw_area(GtkWidget *widget, cairo_t *cr, gpointer data)
2933 unifontsel_internal *fs = (unifontsel_internal *)data;
2934 unifont_drawctx dctx;
2936 dctx.type = DRAWTYPE_CAIRO;
2937 dctx.u.cairo.widget = widget;
2938 dctx.u.cairo.cr = cr;
2939 unifontsel_draw_preview_text_inner(&dctx, fs);
2944 static gint unifontsel_expose_area(GtkWidget *widget, GdkEventExpose *event,
2947 unifontsel_internal *fs = (unifontsel_internal *)data;
2949 #ifndef NO_BACKING_PIXMAPS
2950 if (fs->preview_pixmap) {
2951 gdk_draw_pixmap(gtk_widget_get_window(widget),
2952 (gtk_widget_get_style(widget)->fg_gc
2953 [gtk_widget_get_state(widget)]),
2955 event->area.x, event->area.y,
2956 event->area.x, event->area.y,
2957 event->area.width, event->area.height);
2960 unifontsel_draw_preview_text(fs);
2967 static gint unifontsel_configure_area(GtkWidget *widget,
2968 GdkEventConfigure *event, gpointer data)
2970 #ifndef NO_BACKING_PIXMAPS
2971 unifontsel_internal *fs = (unifontsel_internal *)data;
2972 int ox, oy, nx, ny, x, y;
2975 * Enlarge the pixmap, but never shrink it.
2977 ox = fs->preview_width;
2978 oy = fs->preview_height;
2981 if (x > ox || y > oy) {
2982 if (fs->preview_pixmap)
2983 gdk_pixmap_unref(fs->preview_pixmap);
2985 nx = (x > ox ? x : ox);
2986 ny = (y > oy ? y : oy);
2987 fs->preview_pixmap = gdk_pixmap_new(gtk_widget_get_window(widget),
2989 fs->preview_width = nx;
2990 fs->preview_height = ny;
2992 unifontsel_draw_preview_text(fs);
2996 gdk_window_invalidate_rect(gtk_widget_get_window(widget), NULL, FALSE);
3001 unifontsel *unifontsel_new(const char *wintitle)
3003 unifontsel_internal *fs = snew(unifontsel_internal);
3004 GtkWidget *table, *label, *w, *ww, *scroll;
3005 GtkListStore *model;
3006 GtkTreeViewColumn *column;
3007 int lists_height, preview_height, font_width, style_width, size_width;
3010 fs->inhibit_response = FALSE;
3011 fs->selected = NULL;
3017 * Invent some magic size constants.
3019 get_label_text_dimensions("Quite Long Font Name (Foundry)",
3022 lists_height = 14 * height;
3023 preview_height = 5 * height;
3025 get_label_text_dimensions("Italic Extra Condensed", &width, &height);
3026 style_width = width;
3028 get_label_text_dimensions("48000", &width, &height);
3033 * Create the dialog box and initialise the user-visible
3034 * fields in the returned structure.
3036 fs->u.user_data = NULL;
3037 fs->u.window = GTK_WINDOW(gtk_dialog_new());
3038 gtk_window_set_title(fs->u.window, wintitle);
3039 fs->u.cancel_button = gtk_dialog_add_button
3040 (GTK_DIALOG(fs->u.window), STANDARD_CANCEL_LABEL, GTK_RESPONSE_CANCEL);
3041 fs->u.ok_button = gtk_dialog_add_button
3042 (GTK_DIALOG(fs->u.window), STANDARD_OK_LABEL, GTK_RESPONSE_OK);
3043 gtk_widget_grab_default(fs->u.ok_button);
3046 * Now set up the internal fields, including in particular all
3047 * the controls that actually allow the user to select fonts.
3049 #if GTK_CHECK_VERSION(3,0,0)
3050 table = gtk_grid_new();
3051 gtk_grid_set_column_spacing(GTK_GRID(table), 8);
3053 table = gtk_table_new(8, 3, FALSE);
3054 gtk_table_set_col_spacings(GTK_TABLE(table), 8);
3056 gtk_widget_show(table);
3057 #if GTK_CHECK_VERSION(2,4,0)
3058 /* GtkAlignment seems to be the simplest way to put padding round things */
3059 w = gtk_alignment_new(0, 0, 1, 1);
3060 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3061 gtk_container_add(GTK_CONTAINER(w), table);
3066 gtk_box_pack_start(GTK_BOX(gtk_dialog_get_content_area
3067 (GTK_DIALOG(fs->u.window))),
3070 label = gtk_label_new_with_mnemonic("_Font:");
3071 gtk_widget_show(label);
3072 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3073 #if GTK_CHECK_VERSION(3,0,0)
3074 gtk_grid_attach(GTK_GRID(table), label, 0, 0, 1, 1);
3075 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3077 gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1, GTK_FILL, 0, 0, 0);
3081 * The Font list box displays only a string, but additionally
3082 * stores two integers which give the limits within the
3083 * tree234 of the font entries covered by this list entry.
3085 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3086 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3087 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3088 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3090 column = gtk_tree_view_column_new_with_attributes
3091 ("Font", gtk_cell_renderer_text_new(),
3092 "text", 0, (char *)NULL);
3093 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3094 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3095 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3096 "changed", G_CALLBACK(family_changed), fs);
3097 g_signal_connect(G_OBJECT(w), "row-activated",
3098 G_CALLBACK(alias_resolve), fs);
3100 scroll = gtk_scrolled_window_new(NULL, NULL);
3101 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3103 gtk_container_add(GTK_CONTAINER(scroll), w);
3104 gtk_widget_show(scroll);
3105 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3106 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3107 gtk_widget_set_size_request(scroll, font_width, lists_height);
3108 #if GTK_CHECK_VERSION(3,0,0)
3109 gtk_grid_attach(GTK_GRID(table), scroll, 0, 1, 1, 2);
3110 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3112 gtk_table_attach(GTK_TABLE(table), scroll, 0, 1, 1, 3, GTK_FILL,
3113 GTK_EXPAND | GTK_FILL, 0, 0);
3115 fs->family_model = model;
3116 fs->family_list = w;
3118 label = gtk_label_new_with_mnemonic("_Style:");
3119 gtk_widget_show(label);
3120 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3121 #if GTK_CHECK_VERSION(3,0,0)
3122 gtk_grid_attach(GTK_GRID(table), label, 1, 0, 1, 1);
3123 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3125 gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1, GTK_FILL, 0, 0, 0);
3129 * The Style list box can contain insensitive elements
3130 * (character set headings for server-side fonts), so we add
3131 * an extra column to the list store to hold that information.
3133 model = gtk_list_store_new(4, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT,
3135 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3136 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3137 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3139 column = gtk_tree_view_column_new_with_attributes
3140 ("Style", gtk_cell_renderer_text_new(),
3141 "text", 0, "sensitive", 3, (char *)NULL);
3142 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3143 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3144 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3145 "changed", G_CALLBACK(style_changed), fs);
3147 scroll = gtk_scrolled_window_new(NULL, NULL);
3148 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3150 gtk_container_add(GTK_CONTAINER(scroll), w);
3151 gtk_widget_show(scroll);
3152 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3153 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3154 gtk_widget_set_size_request(scroll, style_width, lists_height);
3155 #if GTK_CHECK_VERSION(3,0,0)
3156 gtk_grid_attach(GTK_GRID(table), scroll, 1, 1, 1, 2);
3157 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3159 gtk_table_attach(GTK_TABLE(table), scroll, 1, 2, 1, 3, GTK_FILL,
3160 GTK_EXPAND | GTK_FILL, 0, 0);
3162 fs->style_model = model;
3165 label = gtk_label_new_with_mnemonic("Si_ze:");
3166 gtk_widget_show(label);
3167 gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.0);
3168 #if GTK_CHECK_VERSION(3,0,0)
3169 gtk_grid_attach(GTK_GRID(table), label, 2, 0, 1, 1);
3170 g_object_set(G_OBJECT(label), "hexpand", TRUE, (const char *)NULL);
3172 gtk_table_attach(GTK_TABLE(table), label, 2, 3, 0, 1, GTK_FILL, 0, 0, 0);
3176 * The Size label attaches primarily to a text input box so
3177 * that the user can select a size of their choice. The list
3178 * of available sizes is secondary.
3180 fs->size_entry = w = gtk_entry_new();
3181 gtk_label_set_mnemonic_widget(GTK_LABEL(label), w);
3182 gtk_widget_set_size_request(w, size_width, -1);
3184 #if GTK_CHECK_VERSION(3,0,0)
3185 gtk_grid_attach(GTK_GRID(table), w, 2, 1, 1, 1);
3186 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3188 gtk_table_attach(GTK_TABLE(table), w, 2, 3, 1, 2, GTK_FILL, 0, 0, 0);
3190 g_signal_connect(G_OBJECT(w), "changed", G_CALLBACK(size_entry_changed),
3193 model = gtk_list_store_new(3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
3194 w = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
3195 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
3197 column = gtk_tree_view_column_new_with_attributes
3198 ("Size", gtk_cell_renderer_text_new(),
3199 "text", 0, (char *)NULL);
3200 gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
3201 gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
3202 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w))),
3203 "changed", G_CALLBACK(size_changed), fs);
3205 scroll = gtk_scrolled_window_new(NULL, NULL);
3206 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll),
3208 gtk_container_add(GTK_CONTAINER(scroll), w);
3209 gtk_widget_show(scroll);
3210 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
3211 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
3212 #if GTK_CHECK_VERSION(3,0,0)
3213 gtk_grid_attach(GTK_GRID(table), scroll, 2, 2, 1, 1);
3214 g_object_set(G_OBJECT(scroll), "expand", TRUE, (const char *)NULL);
3216 gtk_table_attach(GTK_TABLE(table), scroll, 2, 3, 2, 3, GTK_FILL,
3217 GTK_EXPAND | GTK_FILL, 0, 0);
3219 fs->size_model = model;
3225 fs->preview_area = gtk_drawing_area_new();
3226 #ifndef NO_BACKING_PIXMAPS
3227 fs->preview_pixmap = NULL;
3229 fs->preview_width = 0;
3230 fs->preview_height = 0;
3231 fs->preview_fg.pixel = fs->preview_bg.pixel = 0;
3232 fs->preview_fg.red = fs->preview_fg.green = fs->preview_fg.blue = 0x0000;
3233 fs->preview_bg.red = fs->preview_bg.green = fs->preview_bg.blue = 0xFFFF;
3234 #if !GTK_CHECK_VERSION(3,0,0)
3235 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_fg,
3237 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs->preview_bg,
3240 #if GTK_CHECK_VERSION(3,0,0)
3241 g_signal_connect(G_OBJECT(fs->preview_area), "draw",
3242 G_CALLBACK(unifontsel_draw_area), fs);
3244 g_signal_connect(G_OBJECT(fs->preview_area), "expose_event",
3245 G_CALLBACK(unifontsel_expose_area), fs);
3247 g_signal_connect(G_OBJECT(fs->preview_area), "configure_event",
3248 G_CALLBACK(unifontsel_configure_area), fs);
3249 gtk_widget_set_size_request(fs->preview_area, 1, preview_height);
3250 gtk_widget_show(fs->preview_area);
3251 ww = fs->preview_area;
3252 w = gtk_frame_new(NULL);
3253 gtk_container_add(GTK_CONTAINER(w), ww);
3255 #if GTK_CHECK_VERSION(2,4,0)
3257 /* GtkAlignment seems to be the simplest way to put padding round things */
3258 w = gtk_alignment_new(0, 0, 1, 1);
3259 gtk_alignment_set_padding(GTK_ALIGNMENT(w), 8, 8, 8, 8);
3260 gtk_container_add(GTK_CONTAINER(w), ww);
3264 w = gtk_frame_new("Preview of font");
3265 gtk_container_add(GTK_CONTAINER(w), ww);
3267 #if GTK_CHECK_VERSION(3,0,0)
3268 gtk_grid_attach(GTK_GRID(table), w, 0, 3, 3, 1);
3269 g_object_set(G_OBJECT(w), "expand", TRUE, (const char *)NULL);
3271 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 3, 4,
3272 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 8);
3276 * We only provide the checkboxes for client- and server-side
3277 * fonts if we have the X11 back end available, because that's the
3278 * only situation in which more than one class of font is
3281 fs->n_filter_buttons = 0;
3282 #ifndef NOT_X_WINDOWS
3283 w = gtk_check_button_new_with_label("Show client-side fonts");
3284 g_object_set_data(G_OBJECT(w), "user-data",
3285 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE));
3286 g_signal_connect(G_OBJECT(w), "toggled",
3287 G_CALLBACK(unifontsel_button_toggled), fs);
3289 fs->filter_buttons[fs->n_filter_buttons++] = w;
3290 #if GTK_CHECK_VERSION(3,0,0)
3291 gtk_grid_attach(GTK_GRID(table), w, 0, 4, 3, 1);
3292 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3294 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
3296 w = gtk_check_button_new_with_label("Show server-side fonts");
3297 g_object_set_data(G_OBJECT(w), "user-data",
3298 GINT_TO_POINTER(FONTFLAG_SERVERSIDE));
3299 g_signal_connect(G_OBJECT(w), "toggled",
3300 G_CALLBACK(unifontsel_button_toggled), fs);
3302 fs->filter_buttons[fs->n_filter_buttons++] = w;
3303 #if GTK_CHECK_VERSION(3,0,0)
3304 gtk_grid_attach(GTK_GRID(table), w, 0, 5, 3, 1);
3305 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3307 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 5, 6, GTK_FILL, 0, 0, 0);
3309 w = gtk_check_button_new_with_label("Show server-side font aliases");
3310 g_object_set_data(G_OBJECT(w), "user-data",
3311 GINT_TO_POINTER(FONTFLAG_SERVERALIAS));
3312 g_signal_connect(G_OBJECT(w), "toggled",
3313 G_CALLBACK(unifontsel_button_toggled), fs);
3315 fs->filter_buttons[fs->n_filter_buttons++] = w;
3316 #if GTK_CHECK_VERSION(3,0,0)
3317 gtk_grid_attach(GTK_GRID(table), w, 0, 6, 3, 1);
3318 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3320 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
3322 #endif /* NOT_X_WINDOWS */
3323 w = gtk_check_button_new_with_label("Show non-monospaced fonts");
3324 g_object_set_data(G_OBJECT(w), "user-data",
3325 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED));
3326 g_signal_connect(G_OBJECT(w), "toggled",
3327 G_CALLBACK(unifontsel_button_toggled), fs);
3329 fs->filter_buttons[fs->n_filter_buttons++] = w;
3330 #if GTK_CHECK_VERSION(3,0,0)
3331 gtk_grid_attach(GTK_GRID(table), w, 0, 7, 3, 1);
3332 g_object_set(G_OBJECT(w), "hexpand", TRUE, (const char *)NULL);
3334 gtk_table_attach(GTK_TABLE(table), w, 0, 3, 7, 8, GTK_FILL, 0, 0, 0);
3337 assert(fs->n_filter_buttons <= lenof(fs->filter_buttons));
3338 fs->filter_flags = FONTFLAG_CLIENTSIDE | FONTFLAG_SERVERSIDE |
3339 FONTFLAG_SERVERALIAS;
3340 unifontsel_set_filter_buttons(fs);
3343 * Go and find all the font names, and set up our master font
3346 fs->fonts_by_realname = newtree234(fontinfo_realname_compare);
3347 fs->fonts_by_selorder = newtree234(fontinfo_selorder_compare);
3348 for (i = 0; i < lenof(unifont_types); i++)
3349 unifont_types[i]->enum_fonts(GTK_WIDGET(fs->u.window),
3350 unifontsel_add_entry, fs);
3353 * And set up the initial font names list.
3355 unifontsel_setup_familylist(fs);
3357 fs->selsize = fs->intendedsize = 13; /* random default */
3358 gtk_widget_set_sensitive(fs->u.ok_button, FALSE);
3360 return (unifontsel *)fs;
3363 void unifontsel_destroy(unifontsel *fontsel)
3365 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3368 #ifndef NO_BACKING_PIXMAPS
3369 if (fs->preview_pixmap)
3370 gdk_pixmap_unref(fs->preview_pixmap);
3373 freetree234(fs->fonts_by_selorder);
3374 while ((info = delpos234(fs->fonts_by_realname, 0)) != NULL)
3376 freetree234(fs->fonts_by_realname);
3378 gtk_widget_destroy(GTK_WIDGET(fs->u.window));
3382 void unifontsel_set_name(unifontsel *fontsel, const char *fontname)
3384 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3385 int i, start, end, size, flags;
3386 const char *fontname2 = NULL;
3390 * Provide a default if given an empty or null font name.
3392 if (!fontname || !*fontname)
3393 fontname = "server:fixed";
3396 * Call the canonify_fontname function.
3398 fontname = unifont_do_prefix(fontname, &start, &end);
3399 for (i = start; i < end; i++) {
3400 fontname2 = unifont_types[i]->canonify_fontname
3401 (GTK_WIDGET(fs->u.window), fontname, &size, &flags, FALSE);
3406 return; /* font name not recognised */
3409 * Now look up the canonified font name in our index.
3412 struct fontinfo_realname_find f;
3413 f.realname = fontname2;
3415 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3419 * If we've found the font, and its size field is either
3420 * correct or zero (the latter indicating a scalable font),
3421 * then we're done. Otherwise, try looking up the original
3422 * font name instead.
3424 if (!info || (info->size != size && info->size != 0)) {
3425 struct fontinfo_realname_find f;
3426 f.realname = fontname;
3429 info = find234(fs->fonts_by_realname, &f, fontinfo_realname_find);
3430 if (!info || info->size != size)
3431 return; /* font name not in our index */
3435 * Now we've got a fontinfo structure and a font size, so we
3436 * know everything we need to fill in all the fields in the
3439 unifontsel_select_font(fs, info, size, 0, TRUE);
3442 char *unifontsel_get_name(unifontsel *fontsel)
3444 unifontsel_internal *fs = (unifontsel_internal *)fontsel;
3450 if (fs->selected->size == 0) {
3451 name = fs->selected->fontclass->scale_fontname
3452 (GTK_WIDGET(fs->u.window), fs->selected->realname, fs->selsize);
3454 char *ret = dupcat(fs->selected->fontclass->prefix, ":",
3461 return dupcat(fs->selected->fontclass->prefix, ":",
3462 fs->selected->realname, NULL);
3465 #endif /* GTK_CHECK_VERSION(2,0,0) */