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 #include <gdk/gdkkeysyms.h>
19 #include <X11/Xutil.h>
20 #include <X11/Xatom.h>
29 * - it would be nice to have a display of the current font name,
30 * and in particular whether it's client- or server-side,
31 * during the progress of the font selector.
33 * - it would be nice if we could move the processing of
34 * underline and VT100 double width into this module, so that
35 * instead of using the ghastly pixmap-stretching technique
36 * everywhere we could tell the Pango backend to scale its
37 * fonts to double size properly and at full resolution.
38 * However, this requires me to learn how to make Pango stretch
39 * text to an arbitrary aspect ratio (for double-width only
40 * text, which perversely is harder than DW+DH), and right now
41 * I haven't the energy.
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
)(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
84 int x
, int y
, const wchar_t *string
, int len
, int wide
,
85 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'.
98 /* ----------------------------------------------------------------------
99 * X11 font implementation, directly using Xlib calls.
102 static int x11font_has_glyph(unifont
*font
, wchar_t glyph
);
103 static void x11font_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
104 int x
, int y
, const wchar_t *string
, int len
,
105 int wide
, int bold
, int cellwidth
);
106 static unifont
*x11font_create(GtkWidget
*widget
, const char *name
,
108 int shadowoffset
, int shadowalways
);
109 static void x11font_destroy(unifont
*font
);
110 static void x11font_enum_fonts(GtkWidget
*widget
,
111 fontsel_add_entry callback
, void *callback_ctx
);
112 static char *x11font_canonify_fontname(GtkWidget
*widget
, const char *name
,
113 int *size
, int *flags
,
114 int resolve_aliases
);
115 static char *x11font_scale_fontname(GtkWidget
*widget
, const char *name
,
121 * Actual font objects. We store a number of these, for
122 * automatically guessed bold and wide variants.
124 * The parallel array `allocated' indicates whether we've
125 * tried to fetch a subfont already (thus distinguishing NULL
126 * because we haven't tried yet from NULL because we tried and
127 * failed, so that we don't keep trying and failing
130 XFontStruct
*fonts
[4];
133 * `sixteen_bit' is true iff the font object is indexed by
134 * values larger than a byte. That is, this flag tells us
135 * whether we use XDrawString or XDrawString16, etc.
139 * `variable' is true iff the font is non-fixed-pitch. This
140 * enables some code which takes greater care over character
141 * positioning during text drawing.
145 * real_charset is the charset used when translating text into the
146 * font's internal encoding inside draw_text(). This need not be
147 * the same as the public_charset provided to the client; for
148 * example, public_charset might be CS_ISO8859_1 while
149 * real_charset is CS_ISO8859_1_X11.
153 * Data passed in to unifont_create().
155 int wide
, bold
, shadowoffset
, shadowalways
;
158 static const struct unifont_vtable x11font_vtable
= {
160 NULL
, /* no fallback fonts in X11 */
165 x11font_canonify_fontname
,
166 x11font_scale_fontname
,
170 static char *x11_guess_derived_font_name(XFontStruct
*xfs
, int bold
, int wide
)
172 Display
*disp
= GDK_DISPLAY();
173 Atom fontprop
= XInternAtom(disp
, "FONT", False
);
175 if (XGetFontProperty(xfs
, fontprop
, &ret
)) {
176 char *name
= XGetAtomName(disp
, (Atom
)ret
);
177 if (name
&& name
[0] == '-') {
179 char *dupname
, *extrafree
= NULL
, *ret
;
183 p
= q
= dupname
= dupstr(name
); /* skip initial minus */
186 while (*p
&& nstr
< lenof(strings
)) {
189 strings
[nstr
++] = p
+1;
194 if (nstr
< lenof(strings
))
195 return NULL
; /* XLFD was malformed */
201 /* 4 is `wideness', which obviously may have changed. */
202 /* 5 is additional style, which may be e.g. `ja' or `ko'. */
203 strings
[4] = strings
[5] = "*";
204 strings
[11] = extrafree
= dupprintf("%d", 2*atoi(strings
[11]));
207 ret
= dupcat("-", strings
[ 0], "-", strings
[ 1], "-", strings
[ 2],
208 "-", strings
[ 3], "-", strings
[ 4], "-", strings
[ 5],
209 "-", strings
[ 6], "-", strings
[ 7], "-", strings
[ 8],
210 "-", strings
[ 9], "-", strings
[10], "-", strings
[11],
211 "-", strings
[12], NULL
);
221 static int x11_font_width(XFontStruct
*xfs
, int sixteen_bit
)
227 return XTextWidth16(xfs
, &space
, 1);
229 return XTextWidth(xfs
, "0", 1);
233 static int x11_font_has_glyph(XFontStruct
*xfs
, int byte1
, int byte2
)
238 * Not to be confused with x11font_has_glyph, which is a method of
239 * the x11font 'class' and hence takes a unifont as argument. This
240 * is the low-level function which grubs about in an actual
241 * XFontStruct to see if a given glyph exists.
243 * We must do this ourselves rather than letting Xlib's
244 * XTextExtents16 do the job, because XTextExtents will helpfully
245 * substitute the font's default_char for any missing glyph and
246 * not tell us it did so, which precisely won't help us find out
247 * which glyphs _are_ missing.
249 * The man page for XQueryFont is rather confusing about how the
250 * per_char array in the XFontStruct is laid out, because it gives
251 * formulae for determining the two-byte X character code _from_
252 * an index into the per_char array. Going the other way, it's
255 * The valid character codes have byte1 between min_byte1 and
256 * max_byte1 inclusive, and byte2 between min_char_or_byte2 and
257 * max_char_or_byte2 inclusive. This gives a rectangle of size
258 * (max_byte2-min_byte1+1) by
259 * (max_char_or_byte2-min_char_or_byte2+1), which is precisely the
260 * rectangle encoded in the per_char array. Hence, given a
261 * character code which is valid in the sense that it falls
262 * somewhere in that rectangle, its index in per_char is given by
265 * x = byte2 - min_char_or_byte2
266 * y = byte1 - min_byte1
267 * index = y * (max_char_or_byte2-min_char_or_byte2+1) + x
269 * If min_byte1 and min_byte2 are both zero, that's a special case
270 * which can be treated as if min_byte2 was 1 instead, i.e. the
271 * per_char array just runs from min_char_or_byte2 to
272 * max_char_or_byte2 inclusive, and byte1 should always be zero.
275 if (byte2
< xfs
->min_char_or_byte2
|| byte2
> xfs
->max_char_or_byte2
)
278 if (xfs
->min_byte1
== 0 && xfs
->max_byte1
== 0) {
279 index
= byte2
- xfs
->min_char_or_byte2
;
281 if (byte1
< xfs
->min_byte1
|| byte1
> xfs
->max_byte1
)
283 index
= ((byte2
- xfs
->min_char_or_byte2
) +
284 ((byte1
- xfs
->min_byte1
) *
285 (xfs
->max_char_or_byte2
- xfs
->min_char_or_byte2
+ 1)));
288 if (!xfs
->per_char
) /* per_char NULL => everything in range exists */
291 return (xfs
->per_char
[index
].ascent
+ xfs
->per_char
[index
].descent
> 0 ||
292 xfs
->per_char
[index
].width
> 0);
295 static unifont
*x11font_create(GtkWidget
*widget
, const char *name
,
297 int shadowoffset
, int shadowalways
)
299 struct x11font
*xfont
;
301 Display
*disp
= GDK_DISPLAY();
302 Atom charset_registry
, charset_encoding
, spacing
;
303 unsigned long registry_ret
, encoding_ret
, spacing_ret
;
304 int pubcs
, realcs
, sixteen_bit
, variable
;
307 xfs
= XLoadQueryFont(disp
, name
);
311 charset_registry
= XInternAtom(disp
, "CHARSET_REGISTRY", False
);
312 charset_encoding
= XInternAtom(disp
, "CHARSET_ENCODING", False
);
314 pubcs
= realcs
= CS_NONE
;
318 if (XGetFontProperty(xfs
, charset_registry
, ®istry_ret
) &&
319 XGetFontProperty(xfs
, charset_encoding
, &encoding_ret
)) {
321 reg
= XGetAtomName(disp
, (Atom
)registry_ret
);
322 enc
= XGetAtomName(disp
, (Atom
)encoding_ret
);
324 char *encoding
= dupcat(reg
, "-", enc
, NULL
);
325 pubcs
= realcs
= charset_from_xenc(encoding
);
328 * iso10646-1 is the only wide font encoding we
329 * support. In this case, we expect clients to give us
330 * UTF-8, which this module must internally convert
331 * into 16-bit Unicode.
333 if (!strcasecmp(encoding
, "iso10646-1")) {
335 pubcs
= realcs
= CS_UTF8
;
339 * Hack for X line-drawing characters: if the primary font
340 * is encoded as ISO-8859-1, and has valid glyphs in the
341 * low character positions, it is assumed that those
342 * glyphs are the VT100 line-drawing character set.
344 if (pubcs
== CS_ISO8859_1
) {
346 for (ch
= 1; ch
< 32; ch
++)
347 if (!x11_font_has_glyph(xfs
, 0, ch
))
350 realcs
= CS_ISO8859_1_X11
;
357 spacing
= XInternAtom(disp
, "SPACING", False
);
358 if (XGetFontProperty(xfs
, spacing
, &spacing_ret
)) {
360 spc
= XGetAtomName(disp
, (Atom
)spacing_ret
);
362 if (spc
&& strchr("CcMm", spc
[0]))
366 xfont
= snew(struct x11font
);
367 xfont
->u
.vt
= &x11font_vtable
;
368 xfont
->u
.width
= x11_font_width(xfs
, sixteen_bit
);
369 xfont
->u
.ascent
= xfs
->ascent
;
370 xfont
->u
.descent
= xfs
->descent
;
371 xfont
->u
.height
= xfont
->u
.ascent
+ xfont
->u
.descent
;
372 xfont
->u
.public_charset
= pubcs
;
373 xfont
->u
.want_fallback
= TRUE
;
374 xfont
->real_charset
= realcs
;
375 xfont
->fonts
[0] = xfs
;
376 xfont
->allocated
[0] = TRUE
;
377 xfont
->sixteen_bit
= sixteen_bit
;
378 xfont
->variable
= variable
;
381 xfont
->shadowoffset
= shadowoffset
;
382 xfont
->shadowalways
= shadowalways
;
384 for (i
= 1; i
< lenof(xfont
->fonts
); i
++) {
385 xfont
->fonts
[i
] = NULL
;
386 xfont
->allocated
[i
] = FALSE
;
389 return (unifont
*)xfont
;
392 static void x11font_destroy(unifont
*font
)
394 Display
*disp
= GDK_DISPLAY();
395 struct x11font
*xfont
= (struct x11font
*)font
;
398 for (i
= 0; i
< lenof(xfont
->fonts
); i
++)
400 XFreeFont(disp
, xfont
->fonts
[i
]);
404 static void x11_alloc_subfont(struct x11font
*xfont
, int sfid
)
406 Display
*disp
= GDK_DISPLAY();
407 char *derived_name
= x11_guess_derived_font_name
408 (xfont
->fonts
[0], sfid
& 1, !!(sfid
& 2));
409 xfont
->fonts
[sfid
] = XLoadQueryFont(disp
, derived_name
);
410 xfont
->allocated
[sfid
] = TRUE
;
412 /* Note that xfont->fonts[sfid] may still be NULL, if XLQF failed. */
415 static int x11font_has_glyph(unifont
*font
, wchar_t glyph
)
417 struct x11font
*xfont
= (struct x11font
*)font
;
419 if (xfont
->sixteen_bit
) {
421 * This X font has 16-bit character indices, which means
422 * we can directly use our Unicode input value.
424 return x11_font_has_glyph(xfont
->fonts
[0], glyph
>> 8, glyph
& 0xFF);
427 * This X font has 8-bit indices, so we must convert to the
428 * appropriate character set.
431 int sblen
= wc_to_mb(xfont
->real_charset
, 0, &glyph
, 1,
432 sbstring
, 2, "", NULL
, NULL
);
433 if (sblen
== 0 || !sbstring
[0])
434 return FALSE
; /* not even in the charset */
436 return x11_font_has_glyph(xfont
->fonts
[0], 0,
437 (unsigned char)sbstring
[0]);
441 #if !GTK_CHECK_VERSION(2,0,0)
442 #define GDK_DRAWABLE_XID(d) GDK_WINDOW_XWINDOW(d) /* GTK1's name for this */
445 static void x11font_really_draw_text_16(GdkDrawable
*target
, XFontStruct
*xfs
,
447 const XChar2b
*string
, int nchars
,
449 int fontvariable
, int cellwidth
)
451 Display
*disp
= GDK_DISPLAY();
452 int step
, nsteps
, centre
;
456 * In a variable-pitch font, we draw one character at a
457 * time, and centre it in the character cell.
464 * In a fixed-pitch font, we can draw the whole lot in one go.
471 while (nsteps
-- > 0) {
474 X
+= (cellwidth
- XTextWidth16(xfs
, string
, step
)) / 2;
476 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
479 XDrawString16(disp
, GDK_DRAWABLE_XID(target
), gc
,
480 X
+ shadowoffset
, y
, string
, step
);
487 static void x11font_really_draw_text(GdkDrawable
*target
, XFontStruct
*xfs
,
489 const char *string
, int nchars
,
491 int fontvariable
, int cellwidth
)
493 Display
*disp
= GDK_DISPLAY();
494 int step
, nsteps
, centre
;
498 * In a variable-pitch font, we draw one character at a
499 * time, and centre it in the character cell.
506 * In a fixed-pitch font, we can draw the whole lot in one go.
513 while (nsteps
-- > 0) {
516 X
+= (cellwidth
- XTextWidth(xfs
, string
, step
)) / 2;
518 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
521 XDrawString(disp
, GDK_DRAWABLE_XID(target
), gc
,
522 X
+ shadowoffset
, y
, string
, step
);
529 static void x11font_draw_text(GdkDrawable
*target
, GdkGC
*gdkgc
, unifont
*font
,
530 int x
, int y
, const wchar_t *string
, int len
,
531 int wide
, int bold
, int cellwidth
)
533 Display
*disp
= GDK_DISPLAY();
534 struct x11font
*xfont
= (struct x11font
*)font
;
535 GC gc
= GDK_GC_XGC(gdkgc
);
537 int shadowoffset
= 0;
538 int mult
= (wide ?
2 : 1);
544 * Decide which subfont we're using, and whether we have to
547 if (xfont
->shadowalways
&& bold
) {
548 shadowoffset
= xfont
->shadowoffset
;
551 sfid
= 2 * wide
+ bold
;
552 if (!xfont
->allocated
[sfid
])
553 x11_alloc_subfont(xfont
, sfid
);
554 if (bold
&& !xfont
->fonts
[sfid
]) {
556 shadowoffset
= xfont
->shadowoffset
;
557 sfid
= 2 * wide
+ bold
;
558 if (!xfont
->allocated
[sfid
])
559 x11_alloc_subfont(xfont
, sfid
);
562 if (!xfont
->fonts
[sfid
])
563 return; /* we've tried our best, but no luck */
565 XSetFont(disp
, gc
, xfont
->fonts
[sfid
]->fid
);
567 if (xfont
->sixteen_bit
) {
569 * This X font has 16-bit character indices, which means
570 * we can directly use our Unicode input string.
575 xcs
= snewn(len
, XChar2b
);
576 for (i
= 0; i
< len
; i
++) {
577 xcs
[i
].byte1
= string
[i
] >> 8;
578 xcs
[i
].byte2
= string
[i
];
581 x11font_really_draw_text_16(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
582 xcs
, len
, shadowoffset
,
583 xfont
->variable
, cellwidth
* mult
);
587 * This X font has 8-bit indices, so we must convert to the
588 * appropriate character set.
590 char *sbstring
= snewn(len
+1, char);
591 int sblen
= wc_to_mb(xfont
->real_charset
, 0, string
, len
,
592 sbstring
, len
+1, ".", NULL
, NULL
);
593 x11font_really_draw_text(target
, xfont
->fonts
[sfid
], gc
, x
, y
,
594 sbstring
, sblen
, shadowoffset
,
595 xfont
->variable
, cellwidth
* mult
);
600 static void x11font_enum_fonts(GtkWidget
*widget
,
601 fontsel_add_entry callback
, void *callback_ctx
)
605 int nnames
, i
, max
, tmpsize
;
609 fontnames
= XListFonts(GDK_DISPLAY(), "*", max
, &nnames
);
611 XFreeFontNames(fontnames
);
619 for (i
= 0; i
< nnames
; i
++) {
620 if (fontnames
[i
][0] == '-') {
622 * Dismember an XLFD and convert it into the format
623 * we'll be using in the font selector.
625 char *components
[14];
626 char *p
, *font
, *style
, *stylekey
, *charset
;
627 int j
, weightkey
, slantkey
, setwidthkey
;
628 int thistmpsize
, fontsize
, flags
;
630 thistmpsize
= 4 * strlen(fontnames
[i
]) + 256;
631 if (tmpsize
< thistmpsize
) {
632 tmpsize
= thistmpsize
;
633 tmp
= sresize(tmp
, tmpsize
, char);
635 strcpy(tmp
, fontnames
[i
]);
638 for (j
= 0; j
< 14; j
++) {
642 while (*p
&& *p
!= '-')
648 * Font name is made up of fields 0 and 1, in reverse
649 * order with parentheses. (This is what the GTK 1.2 X
650 * font selector does, and it seems to come out
651 * looking reasonably sensible.)
654 p
+= 1 + sprintf(p
, "%s (%s)", components
[1], components
[0]);
657 * Charset is made up of fields 12 and 13.
660 p
+= 1 + sprintf(p
, "%s-%s", components
[12], components
[13]);
663 * Style is a mixture of quite a lot of the fields,
664 * with some strange formatting.
667 p
+= sprintf(p
, "%s", components
[2][0] ? components
[2] :
669 if (!g_ascii_strcasecmp(components
[3], "i"))
670 p
+= sprintf(p
, " italic");
671 else if (!g_ascii_strcasecmp(components
[3], "o"))
672 p
+= sprintf(p
, " oblique");
673 else if (!g_ascii_strcasecmp(components
[3], "ri"))
674 p
+= sprintf(p
, " reverse italic");
675 else if (!g_ascii_strcasecmp(components
[3], "ro"))
676 p
+= sprintf(p
, " reverse oblique");
677 else if (!g_ascii_strcasecmp(components
[3], "ot"))
678 p
+= sprintf(p
, " other-slant");
679 if (components
[4][0] && g_ascii_strcasecmp(components
[4], "normal"))
680 p
+= sprintf(p
, " %s", components
[4]);
681 if (!g_ascii_strcasecmp(components
[10], "m"))
682 p
+= sprintf(p
, " [M]");
683 if (!g_ascii_strcasecmp(components
[10], "c"))
684 p
+= sprintf(p
, " [C]");
685 if (components
[5][0])
686 p
+= sprintf(p
, " %s", components
[5]);
689 * Style key is the same stuff as above, but with a
690 * couple of transformations done on it to make it
691 * sort more sensibly.
695 if (!g_ascii_strcasecmp(components
[2], "medium") ||
696 !g_ascii_strcasecmp(components
[2], "regular") ||
697 !g_ascii_strcasecmp(components
[2], "normal") ||
698 !g_ascii_strcasecmp(components
[2], "book"))
700 else if (!g_ascii_strncasecmp(components
[2], "demi", 4) ||
701 !g_ascii_strncasecmp(components
[2], "semi", 4))
705 if (!g_ascii_strcasecmp(components
[3], "r"))
707 else if (!g_ascii_strncasecmp(components
[3], "r", 1))
711 if (!g_ascii_strcasecmp(components
[4], "normal"))
716 p
+= sprintf(p
, "%04d%04d%s%04d%04d%s%04d%04d%s%04d%s%04d%s",
718 (int)strlen(components
[2]), components
[2],
720 (int)strlen(components
[3]), components
[3],
722 (int)strlen(components
[4]), components
[4],
723 (int)strlen(components
[10]), components
[10],
724 (int)strlen(components
[5]), components
[5]);
726 assert(p
- tmp
< thistmpsize
);
729 * Size is in pixels, for our application, so we
730 * derive it directly from the pixel size field,
733 fontsize
= atoi(components
[6]);
736 * Flags: we need to know whether this is a monospaced
737 * font, which we do by examining the spacing field
740 flags
= FONTFLAG_SERVERSIDE
;
741 if (!strchr("CcMm", components
[10][0]))
742 flags
|= FONTFLAG_NONMONOSPACED
;
745 * Not sure why, but sometimes the X server will
746 * deliver dummy font types in which fontsize comes
747 * out as zero. Filter those out.
750 callback(callback_ctx
, fontnames
[i
], font
, charset
,
751 style
, stylekey
, fontsize
, flags
, &x11font_vtable
);
754 * This isn't an XLFD, so it must be an alias.
755 * Transmit it with mostly null data.
757 * It would be nice to work out if it's monospaced
758 * here, but at the moment I can't see that being
759 * anything but computationally hideous. Ah well.
761 callback(callback_ctx
, fontnames
[i
], fontnames
[i
], NULL
,
762 NULL
, NULL
, 0, FONTFLAG_SERVERALIAS
, &x11font_vtable
);
765 XFreeFontNames(fontnames
);
768 static char *x11font_canonify_fontname(GtkWidget
*widget
, const char *name
,
769 int *size
, int *flags
,
773 * When given an X11 font name to try to make sense of for a
774 * font selector, we must attempt to load it (to see if it
775 * exists), and then canonify it by extracting its FONT
776 * property, which should give its full XLFD even if what we
777 * originally had was a wildcard.
779 * However, we must carefully avoid canonifying font
780 * _aliases_, unless specifically asked to, because the font
781 * selector treats them as worthwhile in their own right.
784 Display
*disp
= GDK_DISPLAY();
785 Atom fontprop
, fontprop2
;
788 xfs
= XLoadQueryFont(disp
, name
);
791 return NULL
; /* didn't make sense to us, sorry */
793 fontprop
= XInternAtom(disp
, "FONT", False
);
795 if (XGetFontProperty(xfs
, fontprop
, &ret
)) {
796 char *newname
= XGetAtomName(disp
, (Atom
)ret
);
798 unsigned long fsize
= 12;
800 fontprop2
= XInternAtom(disp
, "PIXEL_SIZE", False
);
801 if (XGetFontProperty(xfs
, fontprop2
, &fsize
) && fsize
> 0) {
803 XFreeFont(disp
, xfs
);
805 if (name
[0] == '-' || resolve_aliases
)
806 *flags
= FONTFLAG_SERVERSIDE
;
808 *flags
= FONTFLAG_SERVERALIAS
;
810 return dupstr(name
[0] == '-' || resolve_aliases ?
816 XFreeFont(disp
, xfs
);
818 return NULL
; /* something went wrong */
821 static char *x11font_scale_fontname(GtkWidget
*widget
, const char *name
,
824 return NULL
; /* shan't */
827 #if GTK_CHECK_VERSION(2,0,0)
829 /* ----------------------------------------------------------------------
830 * Pango font implementation (for GTK 2 only).
833 #if defined PANGO_PRE_1POINT4 && !defined PANGO_PRE_1POINT6
834 #define PANGO_PRE_1POINT6 /* make life easier for pre-1.4 folk */
837 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
);
838 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
839 int x
, int y
, const wchar_t *string
, int len
,
840 int wide
, int bold
, int cellwidth
);
841 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
843 int shadowoffset
, int shadowalways
);
844 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
846 int shadowoffset
, int shadowalways
);
847 static void pangofont_destroy(unifont
*font
);
848 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
850 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
851 int *size
, int *flags
,
852 int resolve_aliases
);
853 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
861 PangoFontDescription
*desc
;
864 * The containing widget.
868 * Data passed in to unifont_create().
870 int bold
, shadowoffset
, shadowalways
;
873 static const struct unifont_vtable pangofont_vtable
= {
875 pangofont_create_fallback
,
879 pangofont_enum_fonts
,
880 pangofont_canonify_fontname
,
881 pangofont_scale_fontname
,
886 * This function is used to rigorously validate a
887 * PangoFontDescription. Later versions of Pango have a nasty
888 * habit of accepting _any_ old string as input to
889 * pango_font_description_from_string and returning a font
890 * description which can actually be used to display text, even if
891 * they have to do it by falling back to their most default font.
892 * This is doubtless helpful in some situations, but not here,
893 * because we need to know if a Pango font string actually _makes
894 * sense_ in order to fall back to treating it as an X font name
895 * if it doesn't. So we check that the font family is actually one
896 * supported by Pango.
898 static int pangofont_check_desc_makes_sense(PangoContext
*ctx
,
899 PangoFontDescription
*desc
)
901 #ifndef PANGO_PRE_1POINT6
904 PangoFontFamily
**families
;
905 int i
, nfamilies
, matched
;
908 * Ask Pango for a list of font families, and iterate through
909 * them to see if one of them matches the family in the
910 * PangoFontDescription.
912 #ifndef PANGO_PRE_1POINT6
913 map
= pango_context_get_font_map(ctx
);
916 pango_font_map_list_families(map
, &families
, &nfamilies
);
918 pango_context_list_families(ctx
, &families
, &nfamilies
);
922 for (i
= 0; i
< nfamilies
; i
++) {
923 if (!g_ascii_strcasecmp(pango_font_family_get_name(families
[i
]),
924 pango_font_description_get_family(desc
))) {
934 static unifont
*pangofont_create_internal(GtkWidget
*widget
,
936 PangoFontDescription
*desc
,
938 int shadowoffset
, int shadowalways
)
940 struct pangofont
*pfont
;
941 #ifndef PANGO_PRE_1POINT6
945 PangoFontMetrics
*metrics
;
947 #ifndef PANGO_PRE_1POINT6
948 map
= pango_context_get_font_map(ctx
);
950 pango_font_description_free(desc
);
953 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
954 pango_context_get_language(ctx
));
956 fset
= pango_context_load_fontset(ctx
, desc
,
957 pango_context_get_language(ctx
));
960 pango_font_description_free(desc
);
963 metrics
= pango_fontset_get_metrics(fset
);
965 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
966 pango_font_description_free(desc
);
967 g_object_unref(fset
);
971 pfont
= snew(struct pangofont
);
972 pfont
->u
.vt
= &pangofont_vtable
;
974 PANGO_PIXELS(pango_font_metrics_get_approximate_digit_width(metrics
));
975 pfont
->u
.ascent
= PANGO_PIXELS(pango_font_metrics_get_ascent(metrics
));
976 pfont
->u
.descent
= PANGO_PIXELS(pango_font_metrics_get_descent(metrics
));
977 pfont
->u
.height
= pfont
->u
.ascent
+ pfont
->u
.descent
;
978 pfont
->u
.want_fallback
= FALSE
;
979 /* The Pango API is hardwired to UTF-8 */
980 pfont
->u
.public_charset
= CS_UTF8
;
983 pfont
->widget
= widget
;
985 pfont
->shadowoffset
= shadowoffset
;
986 pfont
->shadowalways
= shadowalways
;
988 pango_font_metrics_unref(metrics
);
990 return (unifont
*)pfont
;
993 static unifont
*pangofont_create(GtkWidget
*widget
, const char *name
,
995 int shadowoffset
, int shadowalways
)
998 PangoFontDescription
*desc
;
1000 desc
= pango_font_description_from_string(name
);
1003 ctx
= gtk_widget_get_pango_context(widget
);
1005 pango_font_description_free(desc
);
1008 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1009 pango_font_description_free(desc
);
1012 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1013 shadowoffset
, shadowalways
);
1016 static unifont
*pangofont_create_fallback(GtkWidget
*widget
, int height
,
1018 int shadowoffset
, int shadowalways
)
1021 PangoFontDescription
*desc
;
1023 desc
= pango_font_description_from_string("Monospace");
1026 ctx
= gtk_widget_get_pango_context(widget
);
1028 pango_font_description_free(desc
);
1031 pango_font_description_set_absolute_size(desc
, height
* PANGO_SCALE
);
1032 return pangofont_create_internal(widget
, ctx
, desc
, wide
, bold
,
1033 shadowoffset
, shadowalways
);
1036 static void pangofont_destroy(unifont
*font
)
1038 struct pangofont
*pfont
= (struct pangofont
*)font
;
1039 pango_font_description_free(pfont
->desc
);
1040 g_object_unref(pfont
->fset
);
1044 static int pangofont_has_glyph(unifont
*font
, wchar_t glyph
)
1046 /* Pango implements font fallback, so assume it has everything */
1050 static void pangofont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1051 int x
, int y
, const wchar_t *string
, int len
,
1052 int wide
, int bold
, int cellwidth
)
1054 struct pangofont
*pfont
= (struct pangofont
*)font
;
1055 PangoLayout
*layout
;
1056 PangoRectangle rect
;
1057 char *utfstring
, *utfptr
;
1059 int shadowbold
= FALSE
;
1064 y
-= pfont
->u
.ascent
;
1066 layout
= pango_layout_new(gtk_widget_get_pango_context(pfont
->widget
));
1067 pango_layout_set_font_description(layout
, pfont
->desc
);
1068 if (bold
> pfont
->bold
) {
1069 if (pfont
->shadowalways
)
1072 PangoFontDescription
*desc2
=
1073 pango_font_description_copy_static(pfont
->desc
);
1074 pango_font_description_set_weight(desc2
, PANGO_WEIGHT_BOLD
);
1075 pango_layout_set_font_description(layout
, desc2
);
1080 * Pango always expects UTF-8, so convert the input wide character
1083 utfstring
= snewn(len
*6+1, char); /* UTF-8 has max 6 bytes/char */
1084 utflen
= wc_to_mb(CS_UTF8
, 0, string
, len
,
1085 utfstring
, len
*6+1, ".", NULL
, NULL
);
1088 while (utflen
> 0) {
1092 * We want to display every character from this string in
1093 * the centre of its own character cell. In the worst case,
1094 * this requires a separate text-drawing call for each
1095 * character; but in the common case where the font is
1096 * properly fixed-width, we can draw many characters in one
1097 * go which is much faster.
1099 * This still isn't really ideal. If you look at what
1100 * happens in the X protocol as a result of all of this, you
1101 * find - naturally enough - that each call to
1102 * gdk_draw_layout() generates a separate set of X RENDER
1103 * operations involving creating a picture, setting a clip
1104 * rectangle, doing some drawing and undoing the whole lot.
1105 * In an ideal world, we should _always_ be able to turn the
1106 * contents of this loop into a single RenderCompositeGlyphs
1107 * operation which internally specifies inter-character
1108 * deltas to get the spacing right, which would give us full
1109 * speed _even_ in the worst case of a non-fixed-width font.
1110 * However, Pango's architecture and documentation are so
1111 * unhelpful that I have no idea how if at all to persuade
1116 * Start by extracting a single UTF-8 character from the
1120 while (clen
< utflen
&&
1121 (unsigned char)utfptr
[clen
] >= 0x80 &&
1122 (unsigned char)utfptr
[clen
] < 0xC0)
1127 * If it's a right-to-left character, we must display it on
1128 * its own, to stop Pango helpfully re-reversing our already
1131 if (!is_rtl(string
[0])) {
1134 * See if that character has the width we expect.
1136 pango_layout_set_text(layout
, utfptr
, clen
);
1137 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1139 if (rect
.width
== cellwidth
) {
1141 * Try extracting more characters, for as long as they
1142 * stay well-behaved.
1144 while (clen
< utflen
) {
1146 clen
++; /* skip UTF-8 introducer byte */
1147 while (clen
< utflen
&&
1148 (unsigned char)utfptr
[clen
] >= 0x80 &&
1149 (unsigned char)utfptr
[clen
] < 0xC0)
1152 pango_layout_set_text(layout
, utfptr
, clen
);
1153 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1154 if (rect
.width
!= n
* cellwidth
) {
1163 pango_layout_set_text(layout
, utfptr
, clen
);
1164 pango_layout_get_pixel_extents(layout
, NULL
, &rect
);
1165 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2,
1166 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1168 gdk_draw_layout(target
, gc
, x
+ (n
*cellwidth
- rect
.width
)/2 + pfont
->shadowoffset
,
1169 y
+ (pfont
->u
.height
- rect
.height
)/2, layout
);
1179 g_object_unref(layout
);
1183 * Dummy size value to be used when converting a
1184 * PangoFontDescription of a scalable font to a string for
1187 #define PANGO_DUMMY_SIZE 12
1189 static void pangofont_enum_fonts(GtkWidget
*widget
, fontsel_add_entry callback
,
1193 #ifndef PANGO_PRE_1POINT6
1196 PangoFontFamily
**families
;
1199 ctx
= gtk_widget_get_pango_context(widget
);
1204 * Ask Pango for a list of font families, and iterate through
1207 #ifndef PANGO_PRE_1POINT6
1208 map
= pango_context_get_font_map(ctx
);
1211 pango_font_map_list_families(map
, &families
, &nfamilies
);
1213 pango_context_list_families(ctx
, &families
, &nfamilies
);
1215 for (i
= 0; i
< nfamilies
; i
++) {
1216 PangoFontFamily
*family
= families
[i
];
1217 const char *familyname
;
1219 PangoFontFace
**faces
;
1223 * Set up our flags for this font family, and get the name
1226 flags
= FONTFLAG_CLIENTSIDE
;
1227 #ifndef PANGO_PRE_1POINT4
1229 * In very early versions of Pango, we can't tell
1230 * monospaced fonts from non-monospaced.
1232 if (!pango_font_family_is_monospace(family
))
1233 flags
|= FONTFLAG_NONMONOSPACED
;
1235 familyname
= pango_font_family_get_name(family
);
1238 * Go through the available font faces in this family.
1240 pango_font_family_list_faces(family
, &faces
, &nfaces
);
1241 for (j
= 0; j
< nfaces
; j
++) {
1242 PangoFontFace
*face
= faces
[j
];
1243 PangoFontDescription
*desc
;
1244 const char *facename
;
1246 int k
, nsizes
, dummysize
;
1249 * Get the face name string.
1251 facename
= pango_font_face_get_face_name(face
);
1254 * Set up a font description with what we've got so
1255 * far. We'll fill in the size field manually and then
1256 * call pango_font_description_to_string() to give the
1257 * full real name of the specific font.
1259 desc
= pango_font_face_describe(face
);
1262 * See if this font has a list of specific sizes.
1264 #ifndef PANGO_PRE_1POINT4
1265 pango_font_face_list_sizes(face
, &sizes
, &nsizes
);
1268 * In early versions of Pango, that call wasn't
1269 * supported; we just have to assume everything is
1276 * Write a single entry with a dummy size.
1278 dummysize
= PANGO_DUMMY_SIZE
* PANGO_SCALE
;
1284 * If so, go through them one by one.
1286 for (k
= 0; k
< nsizes
; k
++) {
1290 pango_font_description_set_size(desc
, sizes
[k
]);
1292 fullname
= pango_font_description_to_string(desc
);
1295 * Construct the sorting key for font styles.
1301 n
= pango_font_description_get_weight(desc
);
1302 /* Weight: normal, then lighter, then bolder */
1303 if (n
<= PANGO_WEIGHT_NORMAL
)
1304 n
= PANGO_WEIGHT_NORMAL
- n
;
1305 p
+= sprintf(p
, "%4d", n
);
1307 n
= pango_font_description_get_style(desc
);
1308 p
+= sprintf(p
, " %2d", n
);
1310 n
= pango_font_description_get_stretch(desc
);
1311 /* Stretch: closer to normal sorts earlier */
1312 n
= 2 * abs(PANGO_STRETCH_NORMAL
- n
) +
1313 (n
< PANGO_STRETCH_NORMAL
);
1314 p
+= sprintf(p
, " %2d", n
);
1316 n
= pango_font_description_get_variant(desc
);
1317 p
+= sprintf(p
, " %2d", n
);
1322 * Got everything. Hand off to the callback.
1323 * (The charset string is NULL, because only
1324 * server-side X fonts use it.)
1326 callback(callback_ctx
, fullname
, familyname
, NULL
, facename
,
1328 (sizes
== &dummysize ?
0 : PANGO_PIXELS(sizes
[k
])),
1329 flags
, &pangofont_vtable
);
1333 if (sizes
!= &dummysize
)
1336 pango_font_description_free(desc
);
1343 static char *pangofont_canonify_fontname(GtkWidget
*widget
, const char *name
,
1344 int *size
, int *flags
,
1345 int resolve_aliases
)
1348 * When given a Pango font name to try to make sense of for a
1349 * font selector, we must normalise it to PANGO_DUMMY_SIZE and
1350 * extract its original size (in pixels) into the `size' field.
1353 #ifndef PANGO_PRE_1POINT6
1356 PangoFontDescription
*desc
;
1358 PangoFontMetrics
*metrics
;
1359 char *newname
, *retname
;
1361 desc
= pango_font_description_from_string(name
);
1364 ctx
= gtk_widget_get_pango_context(widget
);
1366 pango_font_description_free(desc
);
1369 if (!pangofont_check_desc_makes_sense(ctx
, desc
)) {
1370 pango_font_description_free(desc
);
1373 #ifndef PANGO_PRE_1POINT6
1374 map
= pango_context_get_font_map(ctx
);
1376 pango_font_description_free(desc
);
1379 fset
= pango_font_map_load_fontset(map
, ctx
, desc
,
1380 pango_context_get_language(ctx
));
1382 fset
= pango_context_load_fontset(ctx
, desc
,
1383 pango_context_get_language(ctx
));
1386 pango_font_description_free(desc
);
1389 metrics
= pango_fontset_get_metrics(fset
);
1391 pango_font_metrics_get_approximate_digit_width(metrics
) == 0) {
1392 pango_font_description_free(desc
);
1393 g_object_unref(fset
);
1397 *size
= PANGO_PIXELS(pango_font_description_get_size(desc
));
1398 *flags
= FONTFLAG_CLIENTSIDE
;
1399 pango_font_description_set_size(desc
, PANGO_DUMMY_SIZE
* PANGO_SCALE
);
1400 newname
= pango_font_description_to_string(desc
);
1401 retname
= dupstr(newname
);
1404 pango_font_metrics_unref(metrics
);
1405 pango_font_description_free(desc
);
1406 g_object_unref(fset
);
1411 static char *pangofont_scale_fontname(GtkWidget
*widget
, const char *name
,
1414 PangoFontDescription
*desc
;
1415 char *newname
, *retname
;
1417 desc
= pango_font_description_from_string(name
);
1420 pango_font_description_set_size(desc
, size
* PANGO_SCALE
);
1421 newname
= pango_font_description_to_string(desc
);
1422 retname
= dupstr(newname
);
1424 pango_font_description_free(desc
);
1429 #endif /* GTK_CHECK_VERSION(2,0,0) */
1431 /* ----------------------------------------------------------------------
1432 * Outermost functions which do the vtable dispatch.
1436 * Complete list of font-type subclasses. Listed in preference
1437 * order for unifont_create(). (That is, in the extremely unlikely
1438 * event that the same font name is valid as both a Pango and an
1439 * X11 font, it will be interpreted as the former in the absence
1440 * of an explicit type-disambiguating prefix.)
1442 * The 'multifont' subclass is omitted here, as discussed above.
1444 static const struct unifont_vtable
*unifont_types
[] = {
1445 #if GTK_CHECK_VERSION(2,0,0)
1452 * Function which takes a font name and processes the optional
1453 * scheme prefix. Returns the tail of the font name suitable for
1454 * passing to individual font scheme functions, and also provides
1455 * a subrange of the unifont_types[] array above.
1457 * The return values `start' and `end' denote a half-open interval
1458 * in unifont_types[]; that is, the correct way to iterate over
1461 * for (i = start; i < end; i++) {...}
1463 static const char *unifont_do_prefix(const char *name
, int *start
, int *end
)
1465 int colonpos
= strcspn(name
, ":");
1468 if (name
[colonpos
]) {
1470 * There's a colon prefix on the font name. Use it to work
1471 * out which subclass to use.
1473 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1474 if (strlen(unifont_types
[i
]->prefix
) == colonpos
&&
1475 !strncmp(unifont_types
[i
]->prefix
, name
, colonpos
)) {
1478 return name
+ colonpos
+ 1;
1482 * None matched, so return an empty scheme list to prevent
1483 * any scheme from being called at all.
1486 return name
+ colonpos
+ 1;
1489 * No colon prefix, so just use all the subclasses.
1492 *end
= lenof(unifont_types
);
1497 unifont
*unifont_create(GtkWidget
*widget
, const char *name
, int wide
,
1498 int bold
, int shadowoffset
, int shadowalways
)
1502 name
= unifont_do_prefix(name
, &start
, &end
);
1504 for (i
= start
; i
< end
; i
++) {
1505 unifont
*ret
= unifont_types
[i
]->create(widget
, name
, wide
, bold
,
1506 shadowoffset
, shadowalways
);
1510 return NULL
; /* font not found in any scheme */
1513 void unifont_destroy(unifont
*font
)
1515 font
->vt
->destroy(font
);
1518 void unifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1519 int x
, int y
, const wchar_t *string
, int len
,
1520 int wide
, int bold
, int cellwidth
)
1522 font
->vt
->draw_text(target
, gc
, font
, x
, y
, string
, len
,
1523 wide
, bold
, cellwidth
);
1526 /* ----------------------------------------------------------------------
1527 * Multiple-font wrapper. This is a type of unifont which encapsulates
1528 * up to two other unifonts, permitting missing glyphs in the main
1529 * font to be filled in by a fallback font.
1531 * This is a type of unifont just like the previous two, but it has a
1532 * separate constructor which is manually called by the client, so it
1533 * doesn't appear in the list of available font types enumerated by
1534 * unifont_create. This means it's not used by unifontsel either, so
1535 * it doesn't need to support any methods except draw_text and
1539 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1540 int x
, int y
, const wchar_t *string
, int len
,
1541 int wide
, int bold
, int cellwidth
);
1542 static void multifont_destroy(unifont
*font
);
1550 static const struct unifont_vtable multifont_vtable
= {
1551 NULL
, /* creation is done specially */
1555 multifont_draw_text
,
1562 unifont
*multifont_create(GtkWidget
*widget
, const char *name
,
1564 int shadowoffset
, int shadowalways
)
1567 unifont
*font
, *fallback
;
1568 struct multifont
*mfont
;
1570 font
= unifont_create(widget
, name
, wide
, bold
,
1571 shadowoffset
, shadowalways
);
1576 if (font
->want_fallback
) {
1577 for (i
= 0; i
< lenof(unifont_types
); i
++) {
1578 if (unifont_types
[i
]->create_fallback
) {
1579 fallback
= unifont_types
[i
]->create_fallback
1580 (widget
, font
->height
, wide
, bold
,
1581 shadowoffset
, shadowalways
);
1589 * Construct our multifont. Public members are all copied from the
1590 * primary font we're wrapping.
1592 mfont
= snew(struct multifont
);
1593 mfont
->u
.vt
= &multifont_vtable
;
1594 mfont
->u
.width
= font
->width
;
1595 mfont
->u
.ascent
= font
->ascent
;
1596 mfont
->u
.descent
= font
->descent
;
1597 mfont
->u
.height
= font
->height
;
1598 mfont
->u
.public_charset
= font
->public_charset
;
1599 mfont
->u
.want_fallback
= FALSE
; /* shouldn't be needed, but just in case */
1601 mfont
->fallback
= fallback
;
1603 return (unifont
*)mfont
;
1606 static void multifont_destroy(unifont
*font
)
1608 struct multifont
*mfont
= (struct multifont
*)font
;
1609 unifont_destroy(mfont
->main
);
1610 if (mfont
->fallback
)
1611 unifont_destroy(mfont
->fallback
);
1615 static void multifont_draw_text(GdkDrawable
*target
, GdkGC
*gc
, unifont
*font
,
1616 int x
, int y
, const wchar_t *string
, int len
,
1617 int wide
, int bold
, int cellwidth
)
1619 struct multifont
*mfont
= (struct multifont
*)font
;
1624 * Find a maximal sequence of characters which are, or are
1625 * not, supported by our main font.
1627 ok
= mfont
->main
->vt
->has_glyph(mfont
->main
, string
[0]);
1630 !mfont
->main
->vt
->has_glyph(mfont
->main
, string
[i
]) == !ok
;
1636 unifont_draw_text(target
, gc
, ok ? mfont
->main
: mfont
->fallback
,
1637 x
, y
, string
, i
, wide
, bold
, cellwidth
);
1644 #if GTK_CHECK_VERSION(2,0,0)
1646 /* ----------------------------------------------------------------------
1647 * Implementation of a unified font selector. Used on GTK 2 only;
1648 * for GTK 1 we still use the standard font selector.
1651 typedef struct fontinfo fontinfo
;
1653 typedef struct unifontsel_internal
{
1654 /* This must be the structure's first element, for cross-casting */
1656 GtkListStore
*family_model
, *style_model
, *size_model
;
1657 GtkWidget
*family_list
, *style_list
, *size_entry
, *size_list
;
1658 GtkWidget
*filter_buttons
[4];
1659 GtkWidget
*preview_area
;
1660 GdkPixmap
*preview_pixmap
;
1661 int preview_width
, preview_height
;
1662 GdkColor preview_fg
, preview_bg
;
1664 tree234
*fonts_by_realname
, *fonts_by_selorder
;
1666 int selsize
, intendedsize
;
1667 int inhibit_response
; /* inhibit callbacks when we change GUI controls */
1668 } unifontsel_internal
;
1671 * The structure held in the tree234s. All the string members are
1672 * part of the same allocated area, so don't need freeing
1677 char *family
, *charset
, *style
, *stylekey
;
1680 * Fallback sorting key, to permit multiple identical entries
1681 * to exist in the selorder tree.
1685 * Indices mapping fontinfo structures to indices in the list
1686 * boxes. sizeindex is irrelevant if the font is scalable
1689 int familyindex
, styleindex
, sizeindex
;
1691 * The class of font.
1693 const struct unifont_vtable
*fontclass
;
1696 struct fontinfo_realname_find
{
1697 const char *realname
;
1701 static int strnullcasecmp(const char *a
, const char *b
)
1706 * If exactly one of the inputs is NULL, it compares before
1709 if ((i
= (!b
) - (!a
)) != 0)
1713 * NULL compares equal.
1719 * Otherwise, ordinary strcasecmp.
1721 return g_ascii_strcasecmp(a
, b
);
1724 static int fontinfo_realname_compare(void *av
, void *bv
)
1726 fontinfo
*a
= (fontinfo
*)av
;
1727 fontinfo
*b
= (fontinfo
*)bv
;
1730 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1732 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1733 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1734 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1738 static int fontinfo_realname_find(void *av
, void *bv
)
1740 struct fontinfo_realname_find
*a
= (struct fontinfo_realname_find
*)av
;
1741 fontinfo
*b
= (fontinfo
*)bv
;
1744 if ((i
= strnullcasecmp(a
->realname
, b
->realname
)) != 0)
1746 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1747 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1748 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1752 static int fontinfo_selorder_compare(void *av
, void *bv
)
1754 fontinfo
*a
= (fontinfo
*)av
;
1755 fontinfo
*b
= (fontinfo
*)bv
;
1757 if ((i
= strnullcasecmp(a
->family
, b
->family
)) != 0)
1760 * Font class comes immediately after family, so that fonts
1761 * from different classes with the same family
1763 if ((a
->flags
& FONTFLAG_SORT_MASK
) != (b
->flags
& FONTFLAG_SORT_MASK
))
1764 return ((a
->flags
& FONTFLAG_SORT_MASK
) <
1765 (b
->flags
& FONTFLAG_SORT_MASK
) ?
-1 : +1);
1766 if ((i
= strnullcasecmp(a
->charset
, b
->charset
)) != 0)
1768 if ((i
= strnullcasecmp(a
->stylekey
, b
->stylekey
)) != 0)
1770 if ((i
= strnullcasecmp(a
->style
, b
->style
)) != 0)
1772 if (a
->size
!= b
->size
)
1773 return (a
->size
< b
->size ?
-1 : +1);
1774 if (a
->index
!= b
->index
)
1775 return (a
->index
< b
->index ?
-1 : +1);
1779 static void unifontsel_deselect(unifontsel_internal
*fs
)
1781 fs
->selected
= NULL
;
1782 gtk_list_store_clear(fs
->style_model
);
1783 gtk_list_store_clear(fs
->size_model
);
1784 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
1785 gtk_widget_set_sensitive(fs
->size_entry
, FALSE
);
1788 static void unifontsel_setup_familylist(unifontsel_internal
*fs
)
1791 int i
, listindex
, minpos
= -1, maxpos
= -1;
1792 char *currfamily
= NULL
;
1796 gtk_list_store_clear(fs
->family_model
);
1800 * Search through the font tree for anything matching our
1801 * current filter criteria. When we find one, add its font
1802 * name to the list box.
1804 for (i
= 0 ;; i
++) {
1805 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1807 * info may be NULL if we've just run off the end of the
1808 * tree. We must still do a processing pass in that
1809 * situation, in case we had an unfinished font record in
1812 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1813 info
->familyindex
= -1;
1814 continue; /* we're filtering out this font */
1816 if (!info
|| strnullcasecmp(currfamily
, info
->family
) ||
1817 currflags
!= (info
->flags
& FONTFLAG_SORT_MASK
)) {
1819 * We've either finished a family, or started a new
1823 gtk_list_store_append(fs
->family_model
, &iter
);
1824 gtk_list_store_set(fs
->family_model
, &iter
,
1825 0, currfamily
, 1, minpos
, 2, maxpos
+1, -1);
1830 currfamily
= info
->family
;
1831 currflags
= info
->flags
& FONTFLAG_SORT_MASK
;
1835 break; /* now we're done */
1836 info
->familyindex
= listindex
;
1841 * If we've just filtered out the previously selected font,
1842 * deselect it thoroughly.
1844 if (fs
->selected
&& fs
->selected
->familyindex
< 0)
1845 unifontsel_deselect(fs
);
1848 static void unifontsel_setup_stylelist(unifontsel_internal
*fs
,
1852 int i
, listindex
, minpos
= -1, maxpos
= -1, started
= FALSE
;
1853 char *currcs
= NULL
, *currstyle
= NULL
;
1856 gtk_list_store_clear(fs
->style_model
);
1861 * Search through the font tree for anything matching our
1862 * current filter criteria. When we find one, add its charset
1863 * and/or style name to the list box.
1865 for (i
= start
; i
<= end
; i
++) {
1869 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1871 * info may be NULL if we've just run off the end of the
1872 * relevant data. We must still do a processing pass in
1873 * that situation, in case we had an unfinished font
1874 * record in progress.
1876 if (info
&& (info
->flags
&~ fs
->filter_flags
)) {
1877 info
->styleindex
= -1;
1878 continue; /* we're filtering out this font */
1880 if (!info
|| !started
|| strnullcasecmp(currcs
, info
->charset
) ||
1881 strnullcasecmp(currstyle
, info
->style
)) {
1883 * We've either finished a style/charset, or started a
1888 gtk_list_store_append(fs
->style_model
, &iter
);
1889 gtk_list_store_set(fs
->style_model
, &iter
,
1890 0, currstyle
, 1, minpos
, 2, maxpos
+1,
1896 if (info
->charset
&& strnullcasecmp(currcs
, info
->charset
)) {
1897 gtk_list_store_append(fs
->style_model
, &iter
);
1898 gtk_list_store_set(fs
->style_model
, &iter
,
1899 0, info
->charset
, 1, -1, 2, -1,
1903 currcs
= info
->charset
;
1904 currstyle
= info
->style
;
1908 break; /* now we're done */
1909 info
->styleindex
= listindex
;
1914 static const int unifontsel_default_sizes
[] = { 10, 12, 14, 16, 20, 24, 32 };
1916 static void unifontsel_setup_sizelist(unifontsel_internal
*fs
,
1924 gtk_list_store_clear(fs
->size_model
);
1928 * Search through the font tree for anything matching our
1929 * current filter criteria. When we find one, add its font
1930 * name to the list box.
1932 for (i
= start
; i
< end
; i
++) {
1933 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, i
);
1934 if (info
->flags
&~ fs
->filter_flags
) {
1935 info
->sizeindex
= -1;
1936 continue; /* we're filtering out this font */
1939 sprintf(sizetext
, "%d", info
->size
);
1940 info
->sizeindex
= listindex
;
1941 gtk_list_store_append(fs
->size_model
, &iter
);
1942 gtk_list_store_set(fs
->size_model
, &iter
,
1943 0, sizetext
, 1, i
, 2, info
->size
, -1);
1951 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++) {
1952 sprintf(sizetext
, "%d", unifontsel_default_sizes
[j
]);
1953 gtk_list_store_append(fs
->size_model
, &iter
);
1954 gtk_list_store_set(fs
->size_model
, &iter
, 0, sizetext
, 1, i
,
1955 2, unifontsel_default_sizes
[j
], -1);
1962 static void unifontsel_set_filter_buttons(unifontsel_internal
*fs
)
1966 for (i
= 0; i
< lenof(fs
->filter_buttons
); i
++) {
1967 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data
1968 (GTK_OBJECT(fs
->filter_buttons
[i
]),
1970 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(fs
->filter_buttons
[i
]),
1971 !!(fs
->filter_flags
& flagbit
));
1975 static void unifontsel_draw_preview_text(unifontsel_internal
*fs
)
1978 char *sizename
= NULL
;
1979 fontinfo
*info
= fs
->selected
;
1982 sizename
= info
->fontclass
->scale_fontname
1983 (GTK_WIDGET(fs
->u
.window
), info
->realname
, fs
->selsize
);
1984 font
= info
->fontclass
->create(GTK_WIDGET(fs
->u
.window
),
1985 sizename ? sizename
: info
->realname
,
1986 FALSE
, FALSE
, 0, 0);
1990 if (fs
->preview_pixmap
) {
1991 GdkGC
*gc
= gdk_gc_new(fs
->preview_pixmap
);
1992 gdk_gc_set_foreground(gc
, &fs
->preview_bg
);
1993 gdk_draw_rectangle(fs
->preview_pixmap
, gc
, 1, 0, 0,
1994 fs
->preview_width
, fs
->preview_height
);
1995 gdk_gc_set_foreground(gc
, &fs
->preview_fg
);
1998 * The pangram used here is rather carefully
1999 * constructed: it contains a sequence of very narrow
2000 * letters (`jil') and a pair of adjacent very wide
2003 * If the user selects a proportional font, it will be
2004 * coerced into fixed-width character cells when used
2005 * in the actual terminal window. We therefore display
2006 * it the same way in the preview pane, so as to show
2007 * it the way it will actually be displayed - and we
2008 * deliberately pick a pangram which will show the
2009 * resulting miskerning at its worst.
2011 * We aren't trying to sell people these fonts; we're
2012 * trying to let them make an informed choice. Better
2013 * that they find out the problems with using
2014 * proportional fonts in terminal windows here than
2015 * that they go to the effort of selecting their font
2016 * and _then_ realise it was a mistake.
2018 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2020 L
"bankrupt jilted showmen quiz convex fogey",
2021 41, FALSE
, FALSE
, font
->width
);
2022 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2023 0, font
->ascent
+ font
->height
,
2024 L
"BANKRUPT JILTED SHOWMEN QUIZ CONVEX FOGEY",
2025 41, FALSE
, FALSE
, font
->width
);
2027 * The ordering of punctuation here is also selected
2028 * with some specific aims in mind. I put ` and '
2029 * together because some software (and people) still
2030 * use them as matched quotes no matter what Unicode
2031 * might say on the matter, so people can quickly
2032 * check whether they look silly in a candidate font.
2033 * The sequence #_@ is there to let people judge the
2034 * suitability of the underscore as an effectively
2035 * alphabetic character (since that's how it's often
2036 * used in practice, at least by programmers).
2038 info
->fontclass
->draw_text(fs
->preview_pixmap
, gc
, font
,
2039 0, font
->ascent
+ font
->height
* 2,
2040 L
"0123456789!?,.:;<>()[]{}\\/`'\"+*-=~#_@|%&^$",
2041 42, FALSE
, FALSE
, font
->width
);
2044 gdk_window_invalidate_rect(fs
->preview_area
->window
, NULL
, FALSE
);
2047 info
->fontclass
->destroy(font
);
2052 static void unifontsel_select_font(unifontsel_internal
*fs
,
2053 fontinfo
*info
, int size
, int leftlist
,
2054 int size_is_explicit
)
2058 GtkTreePath
*treepath
;
2061 fs
->inhibit_response
= TRUE
;
2063 fs
->selected
= info
;
2065 if (size_is_explicit
)
2066 fs
->intendedsize
= size
;
2068 gtk_widget_set_sensitive(fs
->u
.ok_button
, TRUE
);
2071 * Find the index of this fontinfo in the selorder list.
2074 findpos234(fs
->fonts_by_selorder
, info
, NULL
, &index
);
2078 * Adjust the font selector flags and redo the font family
2079 * list box, if necessary.
2081 if (leftlist
<= 0 &&
2082 (fs
->filter_flags
| info
->flags
) != fs
->filter_flags
) {
2083 fs
->filter_flags
|= info
->flags
;
2084 unifontsel_set_filter_buttons(fs
);
2085 unifontsel_setup_familylist(fs
);
2089 * Find the appropriate family name and select it in the list.
2091 assert(info
->familyindex
>= 0);
2092 treepath
= gtk_tree_path_new_from_indices(info
->familyindex
, -1);
2093 gtk_tree_selection_select_path
2094 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->family_list
)),
2096 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->family_list
),
2097 treepath
, NULL
, FALSE
, 0.0, 0.0);
2098 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, treepath
);
2099 gtk_tree_path_free(treepath
);
2102 * Now set up the font style list.
2104 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
,
2105 1, &minval
, 2, &maxval
, -1);
2107 unifontsel_setup_stylelist(fs
, minval
, maxval
);
2110 * Find the appropriate style name and select it in the list.
2113 assert(info
->styleindex
>= 0);
2114 treepath
= gtk_tree_path_new_from_indices(info
->styleindex
, -1);
2115 gtk_tree_selection_select_path
2116 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->style_list
)),
2118 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->style_list
),
2119 treepath
, NULL
, FALSE
, 0.0, 0.0);
2120 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->style_model
),
2122 gtk_tree_path_free(treepath
);
2125 * And set up the size list.
2127 gtk_tree_model_get(GTK_TREE_MODEL(fs
->style_model
), &iter
,
2128 1, &minval
, 2, &maxval
, -1);
2130 unifontsel_setup_sizelist(fs
, minval
, maxval
);
2133 * Find the appropriate size, and select it in the list.
2136 assert(info
->sizeindex
>= 0);
2137 treepath
= gtk_tree_path_new_from_indices(info
->sizeindex
, -1);
2138 gtk_tree_selection_select_path
2139 (gtk_tree_view_get_selection(GTK_TREE_VIEW(fs
->size_list
)),
2141 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2142 treepath
, NULL
, FALSE
, 0.0, 0.0);
2143 gtk_tree_path_free(treepath
);
2147 for (j
= 0; j
< lenof(unifontsel_default_sizes
); j
++)
2148 if (unifontsel_default_sizes
[j
] == size
) {
2149 treepath
= gtk_tree_path_new_from_indices(j
, -1);
2150 gtk_tree_view_set_cursor(GTK_TREE_VIEW(fs
->size_list
),
2151 treepath
, NULL
, FALSE
);
2152 gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(fs
->size_list
),
2153 treepath
, NULL
, FALSE
, 0.0,
2155 gtk_tree_path_free(treepath
);
2160 * And set up the font size text entry box.
2164 sprintf(sizetext
, "%d", size
);
2165 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), sizetext
);
2169 unifontsel_setup_sizelist(fs
, 0, 0);
2170 gtk_entry_set_text(GTK_ENTRY(fs
->size_entry
), "");
2174 * Grey out the font size edit box if we're not using a
2177 gtk_entry_set_editable(GTK_ENTRY(fs
->size_entry
), fs
->selected
->size
== 0);
2178 gtk_widget_set_sensitive(fs
->size_entry
, fs
->selected
->size
== 0);
2180 unifontsel_draw_preview_text(fs
);
2182 fs
->inhibit_response
= FALSE
;
2185 static void unifontsel_button_toggled(GtkToggleButton
*tb
, gpointer data
)
2187 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2188 int newstate
= gtk_toggle_button_get_active(tb
);
2190 int flagbit
= GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(tb
),
2194 newflags
= fs
->filter_flags
| flagbit
;
2196 newflags
= fs
->filter_flags
& ~flagbit
;
2198 if (fs
->filter_flags
!= newflags
) {
2199 fs
->filter_flags
= newflags
;
2200 unifontsel_setup_familylist(fs
);
2204 static void unifontsel_add_entry(void *ctx
, const char *realfontname
,
2205 const char *family
, const char *charset
,
2206 const char *style
, const char *stylekey
,
2207 int size
, int flags
,
2208 const struct unifont_vtable
*fontclass
)
2210 unifontsel_internal
*fs
= (unifontsel_internal
*)ctx
;
2215 totalsize
= sizeof(fontinfo
) + strlen(realfontname
) +
2216 (family ?
strlen(family
) : 0) + (charset ?
strlen(charset
) : 0) +
2217 (style ?
strlen(style
) : 0) + (stylekey ?
strlen(stylekey
) : 0) + 10;
2218 info
= (fontinfo
*)smalloc(totalsize
);
2219 info
->fontclass
= fontclass
;
2220 p
= (char *)info
+ sizeof(fontinfo
);
2222 strcpy(p
, realfontname
);
2229 info
->family
= NULL
;
2235 info
->charset
= NULL
;
2244 strcpy(p
, stylekey
);
2247 info
->stylekey
= NULL
;
2248 assert(p
- (char *)info
<= totalsize
);
2250 info
->flags
= flags
;
2251 info
->index
= count234(fs
->fonts_by_selorder
);
2254 * It's just conceivable that a misbehaving font enumerator
2255 * might tell us about the same font real name more than once,
2256 * in which case we should silently drop the new one.
2258 if (add234(fs
->fonts_by_realname
, info
) != info
) {
2263 * However, we should never get a duplicate key in the
2264 * selorder tree, because the index field carefully
2265 * disambiguates otherwise identical records.
2267 add234(fs
->fonts_by_selorder
, info
);
2270 static fontinfo
*update_for_intended_size(unifontsel_internal
*fs
,
2273 fontinfo info2
, *below
, *above
;
2277 * Copy the info structure. This doesn't copy its dynamic
2278 * string fields, but that's unimportant because all we're
2279 * going to do is to adjust the size field and use it in one
2283 info2
.size
= fs
->intendedsize
;
2286 * Search in the tree to find the fontinfo structure which
2287 * best approximates the size the user last requested.
2289 below
= findrelpos234(fs
->fonts_by_selorder
, &info2
, NULL
,
2291 above
= index234(fs
->fonts_by_selorder
, pos
+1);
2294 * See if we've found it exactly, which is an easy special
2295 * case. If we have, it'll be in `below' and not `above',
2296 * because we did a REL234_LE rather than REL234_LT search.
2298 if (!fontinfo_selorder_compare(&info2
, below
))
2302 * Now we've either found two suitable fonts, one smaller and
2303 * one larger, or we're at one or other extreme end of the
2304 * scale. Find out which, by NULLing out either of below and
2305 * above if it differs from this one in any respect but size
2306 * (and the disambiguating index field). Bear in mind, also,
2307 * that either one might _already_ be NULL if we're at the
2308 * extreme ends of the font list.
2311 info2
.size
= below
->size
;
2312 info2
.index
= below
->index
;
2313 if (fontinfo_selorder_compare(&info2
, below
))
2317 info2
.size
= above
->size
;
2318 info2
.index
= above
->index
;
2319 if (fontinfo_selorder_compare(&info2
, above
))
2324 * Now return whichever of above and below is non-NULL, if
2325 * that's unambiguous.
2333 * And now we really do have to make a choice about whether to
2334 * round up or down. We'll do it by rounding to nearest,
2335 * breaking ties by rounding up.
2337 if (above
->size
- fs
->intendedsize
<= fs
->intendedsize
- below
->size
)
2343 static void family_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2345 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2346 GtkTreeModel
*treemodel
;
2347 GtkTreeIter treeiter
;
2351 if (fs
->inhibit_response
) /* we made this change ourselves */
2354 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2357 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2358 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2359 info
= update_for_intended_size(fs
, info
);
2361 return; /* _shouldn't_ happen unless font list is completely funted */
2363 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2364 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2368 static void style_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2370 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2371 GtkTreeModel
*treemodel
;
2372 GtkTreeIter treeiter
;
2376 if (fs
->inhibit_response
) /* we made this change ourselves */
2379 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2382 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, -1);
2384 return; /* somehow a charset heading got clicked */
2385 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2386 info
= update_for_intended_size(fs
, info
);
2388 return; /* _shouldn't_ happen unless font list is completely funted */
2390 fs
->selsize
= fs
->intendedsize
; /* font is scalable */
2391 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: fs
->selsize
,
2395 static void size_changed(GtkTreeSelection
*treeselection
, gpointer data
)
2397 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2398 GtkTreeModel
*treemodel
;
2399 GtkTreeIter treeiter
;
2403 if (fs
->inhibit_response
) /* we made this change ourselves */
2406 if (!gtk_tree_selection_get_selected(treeselection
, &treemodel
, &treeiter
))
2409 gtk_tree_model_get(treemodel
, &treeiter
, 1, &minval
, 2, &size
, -1);
2410 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2411 unifontsel_select_font(fs
, info
, info
->size ? info
->size
: size
, 3, TRUE
);
2414 static void size_entry_changed(GtkEditable
*ed
, gpointer data
)
2416 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2420 if (fs
->inhibit_response
) /* we made this change ourselves */
2423 text
= gtk_entry_get_text(GTK_ENTRY(ed
));
2427 assert(fs
->selected
->size
== 0);
2428 unifontsel_select_font(fs
, fs
->selected
, size
, 3, TRUE
);
2432 static void alias_resolve(GtkTreeView
*treeview
, GtkTreePath
*path
,
2433 GtkTreeViewColumn
*column
, gpointer data
)
2435 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2437 int minval
, newsize
;
2438 fontinfo
*info
, *newinfo
;
2441 if (fs
->inhibit_response
) /* we made this change ourselves */
2444 gtk_tree_model_get_iter(GTK_TREE_MODEL(fs
->family_model
), &iter
, path
);
2445 gtk_tree_model_get(GTK_TREE_MODEL(fs
->family_model
), &iter
, 1,&minval
, -1);
2446 info
= (fontinfo
*)index234(fs
->fonts_by_selorder
, minval
);
2449 struct fontinfo_realname_find f
;
2451 newname
= info
->fontclass
->canonify_fontname
2452 (GTK_WIDGET(fs
->u
.window
), info
->realname
, &newsize
, &flags
, TRUE
);
2454 f
.realname
= newname
;
2456 newinfo
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2460 return; /* font name not in our index */
2461 if (newinfo
== info
)
2462 return; /* didn't change under canonification => not an alias */
2463 unifontsel_select_font(fs
, newinfo
,
2464 newinfo
->size ? newinfo
->size
: newsize
,
2469 static gint
unifontsel_expose_area(GtkWidget
*widget
, GdkEventExpose
*event
,
2472 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2474 if (fs
->preview_pixmap
) {
2475 gdk_draw_pixmap(widget
->window
,
2476 widget
->style
->fg_gc
[GTK_WIDGET_STATE(widget
)],
2478 event
->area
.x
, event
->area
.y
,
2479 event
->area
.x
, event
->area
.y
,
2480 event
->area
.width
, event
->area
.height
);
2485 static gint
unifontsel_configure_area(GtkWidget
*widget
,
2486 GdkEventConfigure
*event
, gpointer data
)
2488 unifontsel_internal
*fs
= (unifontsel_internal
*)data
;
2489 int ox
, oy
, nx
, ny
, x
, y
;
2492 * Enlarge the pixmap, but never shrink it.
2494 ox
= fs
->preview_width
;
2495 oy
= fs
->preview_height
;
2498 if (x
> ox
|| y
> oy
) {
2499 if (fs
->preview_pixmap
)
2500 gdk_pixmap_unref(fs
->preview_pixmap
);
2502 nx
= (x
> ox ? x
: ox
);
2503 ny
= (y
> oy ? y
: oy
);
2504 fs
->preview_pixmap
= gdk_pixmap_new(widget
->window
, nx
, ny
, -1);
2505 fs
->preview_width
= nx
;
2506 fs
->preview_height
= ny
;
2508 unifontsel_draw_preview_text(fs
);
2511 gdk_window_invalidate_rect(widget
->window
, NULL
, FALSE
);
2516 unifontsel
*unifontsel_new(const char *wintitle
)
2518 unifontsel_internal
*fs
= snew(unifontsel_internal
);
2519 GtkWidget
*table
, *label
, *w
, *ww
, *scroll
;
2520 GtkListStore
*model
;
2521 GtkTreeViewColumn
*column
;
2522 int lists_height
, preview_height
, font_width
, style_width
, size_width
;
2525 fs
->inhibit_response
= FALSE
;
2526 fs
->selected
= NULL
;
2530 * Invent some magic size constants.
2533 label
= gtk_label_new("Quite Long Font Name (Foundry)");
2534 gtk_widget_size_request(label
, &req
);
2535 font_width
= req
.width
;
2536 lists_height
= 14 * req
.height
;
2537 preview_height
= 5 * req
.height
;
2538 gtk_label_set_text(GTK_LABEL(label
), "Italic Extra Condensed");
2539 gtk_widget_size_request(label
, &req
);
2540 style_width
= req
.width
;
2541 gtk_label_set_text(GTK_LABEL(label
), "48000");
2542 gtk_widget_size_request(label
, &req
);
2543 size_width
= req
.width
;
2544 #if GTK_CHECK_VERSION(2,10,0)
2545 g_object_ref_sink(label
);
2546 g_object_unref(label
);
2548 gtk_object_sink(GTK_OBJECT(label
));
2553 * Create the dialog box and initialise the user-visible
2554 * fields in the returned structure.
2556 fs
->u
.user_data
= NULL
;
2557 fs
->u
.window
= GTK_WINDOW(gtk_dialog_new());
2558 gtk_window_set_title(fs
->u
.window
, wintitle
);
2559 fs
->u
.cancel_button
= gtk_dialog_add_button
2560 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_CANCEL
, GTK_RESPONSE_CANCEL
);
2561 fs
->u
.ok_button
= gtk_dialog_add_button
2562 (GTK_DIALOG(fs
->u
.window
), GTK_STOCK_OK
, GTK_RESPONSE_OK
);
2563 gtk_widget_grab_default(fs
->u
.ok_button
);
2566 * Now set up the internal fields, including in particular all
2567 * the controls that actually allow the user to select fonts.
2569 table
= gtk_table_new(8, 3, FALSE
);
2570 gtk_widget_show(table
);
2571 gtk_table_set_col_spacings(GTK_TABLE(table
), 8);
2572 #if GTK_CHECK_VERSION(2,4,0)
2573 /* GtkAlignment seems to be the simplest way to put padding round things */
2574 w
= gtk_alignment_new(0, 0, 1, 1);
2575 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2576 gtk_container_add(GTK_CONTAINER(w
), table
);
2581 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(fs
->u
.window
)->vbox
),
2584 label
= gtk_label_new_with_mnemonic("_Font:");
2585 gtk_widget_show(label
);
2586 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2587 gtk_table_attach(GTK_TABLE(table
), label
, 0, 1, 0, 1, GTK_FILL
, 0, 0, 0);
2590 * The Font list box displays only a string, but additionally
2591 * stores two integers which give the limits within the
2592 * tree234 of the font entries covered by this list entry.
2594 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2595 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2596 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2597 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2599 column
= gtk_tree_view_column_new_with_attributes
2600 ("Font", gtk_cell_renderer_text_new(),
2601 "text", 0, (char *)NULL
);
2602 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2603 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2604 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2605 "changed", G_CALLBACK(family_changed
), fs
);
2606 g_signal_connect(G_OBJECT(w
), "row-activated",
2607 G_CALLBACK(alias_resolve
), fs
);
2609 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2610 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2612 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2613 gtk_widget_show(scroll
);
2614 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2615 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2616 gtk_widget_set_size_request(scroll
, font_width
, lists_height
);
2617 gtk_table_attach(GTK_TABLE(table
), scroll
, 0, 1, 1, 3, GTK_FILL
,
2618 GTK_EXPAND
| GTK_FILL
, 0, 0);
2619 fs
->family_model
= model
;
2620 fs
->family_list
= w
;
2622 label
= gtk_label_new_with_mnemonic("_Style:");
2623 gtk_widget_show(label
);
2624 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2625 gtk_table_attach(GTK_TABLE(table
), label
, 1, 2, 0, 1, GTK_FILL
, 0, 0, 0);
2628 * The Style list box can contain insensitive elements
2629 * (character set headings for server-side fonts), so we add
2630 * an extra column to the list store to hold that information.
2632 model
= gtk_list_store_new(4, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
,
2634 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2635 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2636 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2638 column
= gtk_tree_view_column_new_with_attributes
2639 ("Style", gtk_cell_renderer_text_new(),
2640 "text", 0, "sensitive", 3, (char *)NULL
);
2641 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2642 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2643 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2644 "changed", G_CALLBACK(style_changed
), fs
);
2646 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2647 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2649 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2650 gtk_widget_show(scroll
);
2651 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2652 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2653 gtk_widget_set_size_request(scroll
, style_width
, lists_height
);
2654 gtk_table_attach(GTK_TABLE(table
), scroll
, 1, 2, 1, 3, GTK_FILL
,
2655 GTK_EXPAND
| GTK_FILL
, 0, 0);
2656 fs
->style_model
= model
;
2659 label
= gtk_label_new_with_mnemonic("Si_ze:");
2660 gtk_widget_show(label
);
2661 gtk_misc_set_alignment(GTK_MISC(label
), 0.0, 0.0);
2662 gtk_table_attach(GTK_TABLE(table
), label
, 2, 3, 0, 1, GTK_FILL
, 0, 0, 0);
2665 * The Size label attaches primarily to a text input box so
2666 * that the user can select a size of their choice. The list
2667 * of available sizes is secondary.
2669 fs
->size_entry
= w
= gtk_entry_new();
2670 gtk_label_set_mnemonic_widget(GTK_LABEL(label
), w
);
2671 gtk_widget_set_size_request(w
, size_width
, -1);
2673 gtk_table_attach(GTK_TABLE(table
), w
, 2, 3, 1, 2, GTK_FILL
, 0, 0, 0);
2674 g_signal_connect(G_OBJECT(w
), "changed", G_CALLBACK(size_entry_changed
),
2677 model
= gtk_list_store_new(3, G_TYPE_STRING
, G_TYPE_INT
, G_TYPE_INT
);
2678 w
= gtk_tree_view_new_with_model(GTK_TREE_MODEL(model
));
2679 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w
), FALSE
);
2681 column
= gtk_tree_view_column_new_with_attributes
2682 ("Size", gtk_cell_renderer_text_new(),
2683 "text", 0, (char *)NULL
);
2684 gtk_tree_view_column_set_sizing(column
, GTK_TREE_VIEW_COLUMN_AUTOSIZE
);
2685 gtk_tree_view_append_column(GTK_TREE_VIEW(w
), column
);
2686 g_signal_connect(G_OBJECT(gtk_tree_view_get_selection(GTK_TREE_VIEW(w
))),
2687 "changed", G_CALLBACK(size_changed
), fs
);
2689 scroll
= gtk_scrolled_window_new(NULL
, NULL
);
2690 gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll
),
2692 gtk_container_add(GTK_CONTAINER(scroll
), w
);
2693 gtk_widget_show(scroll
);
2694 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll
),
2695 GTK_POLICY_AUTOMATIC
, GTK_POLICY_ALWAYS
);
2696 gtk_table_attach(GTK_TABLE(table
), scroll
, 2, 3, 2, 3, GTK_FILL
,
2697 GTK_EXPAND
| GTK_FILL
, 0, 0);
2698 fs
->size_model
= model
;
2704 fs
->preview_area
= gtk_drawing_area_new();
2705 fs
->preview_pixmap
= NULL
;
2706 fs
->preview_width
= 0;
2707 fs
->preview_height
= 0;
2708 fs
->preview_fg
.pixel
= fs
->preview_bg
.pixel
= 0;
2709 fs
->preview_fg
.red
= fs
->preview_fg
.green
= fs
->preview_fg
.blue
= 0x0000;
2710 fs
->preview_bg
.red
= fs
->preview_bg
.green
= fs
->preview_bg
.blue
= 0xFFFF;
2711 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_fg
,
2713 gdk_colormap_alloc_color(gdk_colormap_get_system(), &fs
->preview_bg
,
2715 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "expose_event",
2716 GTK_SIGNAL_FUNC(unifontsel_expose_area
), fs
);
2717 gtk_signal_connect(GTK_OBJECT(fs
->preview_area
), "configure_event",
2718 GTK_SIGNAL_FUNC(unifontsel_configure_area
), fs
);
2719 gtk_widget_set_size_request(fs
->preview_area
, 1, preview_height
);
2720 gtk_widget_show(fs
->preview_area
);
2721 ww
= fs
->preview_area
;
2722 w
= gtk_frame_new(NULL
);
2723 gtk_container_add(GTK_CONTAINER(w
), ww
);
2725 #if GTK_CHECK_VERSION(2,4,0)
2727 /* GtkAlignment seems to be the simplest way to put padding round things */
2728 w
= gtk_alignment_new(0, 0, 1, 1);
2729 gtk_alignment_set_padding(GTK_ALIGNMENT(w
), 8, 8, 8, 8);
2730 gtk_container_add(GTK_CONTAINER(w
), ww
);
2734 w
= gtk_frame_new("Preview of font");
2735 gtk_container_add(GTK_CONTAINER(w
), ww
);
2737 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 3, 4,
2738 GTK_EXPAND
| GTK_FILL
, GTK_EXPAND
| GTK_FILL
, 0, 8);
2741 w
= gtk_check_button_new_with_label("Show client-side fonts");
2742 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2743 GINT_TO_POINTER(FONTFLAG_CLIENTSIDE
));
2744 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2745 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2747 fs
->filter_buttons
[i
++] = w
;
2748 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 4, 5, GTK_FILL
, 0, 0, 0);
2749 w
= gtk_check_button_new_with_label("Show server-side fonts");
2750 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2751 GINT_TO_POINTER(FONTFLAG_SERVERSIDE
));
2752 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2753 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2755 fs
->filter_buttons
[i
++] = w
;
2756 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 5, 6, GTK_FILL
, 0, 0, 0);
2757 w
= gtk_check_button_new_with_label("Show server-side font aliases");
2758 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2759 GINT_TO_POINTER(FONTFLAG_SERVERALIAS
));
2760 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2761 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2763 fs
->filter_buttons
[i
++] = w
;
2764 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 6, 7, GTK_FILL
, 0, 0, 0);
2765 w
= gtk_check_button_new_with_label("Show non-monospaced fonts");
2766 gtk_object_set_data(GTK_OBJECT(w
), "user-data",
2767 GINT_TO_POINTER(FONTFLAG_NONMONOSPACED
));
2768 gtk_signal_connect(GTK_OBJECT(w
), "toggled",
2769 GTK_SIGNAL_FUNC(unifontsel_button_toggled
), fs
);
2771 fs
->filter_buttons
[i
++] = w
;
2772 gtk_table_attach(GTK_TABLE(table
), w
, 0, 3, 7, 8, GTK_FILL
, 0, 0, 0);
2774 assert(i
== lenof(fs
->filter_buttons
));
2775 fs
->filter_flags
= FONTFLAG_CLIENTSIDE
| FONTFLAG_SERVERSIDE
|
2776 FONTFLAG_SERVERALIAS
;
2777 unifontsel_set_filter_buttons(fs
);
2780 * Go and find all the font names, and set up our master font
2783 fs
->fonts_by_realname
= newtree234(fontinfo_realname_compare
);
2784 fs
->fonts_by_selorder
= newtree234(fontinfo_selorder_compare
);
2785 for (i
= 0; i
< lenof(unifont_types
); i
++)
2786 unifont_types
[i
]->enum_fonts(GTK_WIDGET(fs
->u
.window
),
2787 unifontsel_add_entry
, fs
);
2790 * And set up the initial font names list.
2792 unifontsel_setup_familylist(fs
);
2794 fs
->selsize
= fs
->intendedsize
= 13; /* random default */
2795 gtk_widget_set_sensitive(fs
->u
.ok_button
, FALSE
);
2797 return (unifontsel
*)fs
;
2800 void unifontsel_destroy(unifontsel
*fontsel
)
2802 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2805 if (fs
->preview_pixmap
)
2806 gdk_pixmap_unref(fs
->preview_pixmap
);
2808 freetree234(fs
->fonts_by_selorder
);
2809 while ((info
= delpos234(fs
->fonts_by_realname
, 0)) != NULL
)
2811 freetree234(fs
->fonts_by_realname
);
2813 gtk_widget_destroy(GTK_WIDGET(fs
->u
.window
));
2817 void unifontsel_set_name(unifontsel
*fontsel
, const char *fontname
)
2819 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2820 int i
, start
, end
, size
, flags
;
2821 const char *fontname2
= NULL
;
2825 * Provide a default if given an empty or null font name.
2827 if (!fontname
|| !*fontname
)
2828 fontname
= "server:fixed";
2831 * Call the canonify_fontname function.
2833 fontname
= unifont_do_prefix(fontname
, &start
, &end
);
2834 for (i
= start
; i
< end
; i
++) {
2835 fontname2
= unifont_types
[i
]->canonify_fontname
2836 (GTK_WIDGET(fs
->u
.window
), fontname
, &size
, &flags
, FALSE
);
2841 return; /* font name not recognised */
2844 * Now look up the canonified font name in our index.
2847 struct fontinfo_realname_find f
;
2848 f
.realname
= fontname2
;
2850 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2854 * If we've found the font, and its size field is either
2855 * correct or zero (the latter indicating a scalable font),
2856 * then we're done. Otherwise, try looking up the original
2857 * font name instead.
2859 if (!info
|| (info
->size
!= size
&& info
->size
!= 0)) {
2860 struct fontinfo_realname_find f
;
2861 f
.realname
= fontname
;
2864 info
= find234(fs
->fonts_by_realname
, &f
, fontinfo_realname_find
);
2865 if (!info
|| info
->size
!= size
)
2866 return; /* font name not in our index */
2870 * Now we've got a fontinfo structure and a font size, so we
2871 * know everything we need to fill in all the fields in the
2874 unifontsel_select_font(fs
, info
, size
, 0, TRUE
);
2877 char *unifontsel_get_name(unifontsel
*fontsel
)
2879 unifontsel_internal
*fs
= (unifontsel_internal
*)fontsel
;
2885 if (fs
->selected
->size
== 0) {
2886 name
= fs
->selected
->fontclass
->scale_fontname
2887 (GTK_WIDGET(fs
->u
.window
), fs
->selected
->realname
, fs
->selsize
);
2889 char *ret
= dupcat(fs
->selected
->fontclass
->prefix
, ":",
2896 return dupcat(fs
->selected
->fontclass
->prefix
, ":",
2897 fs
->selected
->realname
, NULL
);
2900 #endif /* GTK_CHECK_VERSION(2,0,0) */