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Dogcows Code - chaz/openbox/blob - render/font.c
2 #include "kernel/openbox.h"
3 #include "kernel/geom.h"
4 #include "kernel/gettext.h"
5 #define _(str) gettext(str)
7 #include <X11/Xft/Xft.h>
12 #define ELIPSES_LENGTH(font, shadow, offset) \
13 (font->elipses_length + (shadow ? offset : 0))
15 void font_startup(void)
21 g_warning(_("Couldn't initialize Xft.\n"));
25 version
= XftGetVersion();
26 g_message("Using Xft %d.%d.%d (Built against %d.%d.%d).",
27 version
/ 10000 % 100, version
/ 100 % 100, version
% 100,
28 XFT_MAJOR
, XFT_MINOR
, XFT_REVISION
);
32 static void measure_height(ObFont
*f
)
36 /* measure an elipses */
37 XftTextExtentsUtf8(ob_display
, f
->xftfont
,
38 (FcChar8
*)ELIPSES
, strlen(ELIPSES
), &info
);
39 f
->elipses_length
= (signed) info
.xOff
;
42 ObFont
*font_open(char *fontstring
)
47 if ((xf
= XftFontOpenName(ob_display
, ob_screen
, fontstring
))) {
48 out
= g_new(ObFont
, 1);
53 g_warning(_("Unable to load font: %s\n"), fontstring
);
54 g_warning(_("Trying fallback font: %s\n"), "sans");
56 if ((xf
= XftFontOpenName(ob_display
, ob_screen
, "sans"))) {
57 out
= g_new(ObFont
, 1);
62 g_warning(_("Unable to load font: %s\n"), "sans");
63 g_warning(_("Aborting!.\n"));
65 exit(3); /* can't continue without a font */
68 void font_close(ObFont
*f
)
71 XftFontClose(ob_display
, f
->xftfont
);
76 void font_measure_full(ObFont
*f
, char *str
, int shadow
, int offset
,
81 XftTextExtentsUtf8(ob_display
, f
->xftfont
,
82 (FcChar8
*)str
, strlen(str
), &info
);
84 *x
= (signed) info
.xOff
+ (shadow
? ABS(offset
) : 0);
85 *y
= info
.height
+ (shadow
? ABS(offset
) : 0);
88 int font_measure_string(ObFont
*f
, char *str
, int shadow
, int offset
)
91 font_measure_full (f
, str
, shadow
, offset
, &x
, &y
);
95 int font_height(ObFont
*f
, int shadow
, int offset
)
97 return f
->xftfont
->ascent
+ f
->xftfont
->descent
+ (shadow
? offset
: 0);
100 int font_max_char_width(ObFont
*f
)
102 return (signed) f
->xftfont
->max_advance_width
;
105 void font_draw(XftDraw
*d
, TextureText
*t
, Rect
*position
)
112 gboolean shortened
= FALSE
;
116 h
= position
->height
;
118 text
= g_string_new(t
->string
);
119 l
= g_utf8_strlen(text
->str
, -1);
120 font_measure_full(t
->font
, text
->str
, t
->shadow
, t
->offset
, &mw
, &mh
);
121 while (l
&& mw
> position
->width
) {
123 /* remove a character from the middle */
124 text
= g_string_erase(text
, l
-- / 2, 1);
125 em
= ELIPSES_LENGTH(t
->font
, t
->shadow
, t
->offset
);
126 /* if the elipses are too large, don't show them at all */
127 if (em
> position
->width
)
129 font_measure_full(t
->font
, text
->str
, t
->shadow
, t
->offset
, &mw
, &mh
);
133 text
= g_string_insert(text
, (l
+ 1) / 2, ELIPSES
);
138 /* center vertically */
139 y
-= ((t
->font
->xftfont
->ascent
+ t
->font
->xftfont
->descent
) - mh
) / 2;
141 switch (t
->justify
) {
146 x
= position
->x
+ (w
- mw
);
149 x
= position
->x
+ (w
- mw
) / 2;
153 l
= strlen(text
->str
); /* number of bytes */
160 c
.color
.alpha
= 0xffff * t
->tint
/ 100; /* transparent shadow */
161 c
.pixel
= BlackPixel(ob_display
, ob_screen
);
163 c
.color
.red
= 0xffff * -t
->tint
/ 100;
164 c
.color
.green
= 0xffff * -t
->tint
/ 100;
165 c
.color
.blue
= 0xffff * -t
->tint
/ 100;
166 c
.color
.alpha
= 0xffff * -t
->tint
/ 100; /* transparent shadow */
167 c
.pixel
= WhitePixel(ob_display
, ob_screen
);
169 XftDrawStringUtf8(d
, &c
, t
->font
->xftfont
, x
+ t
->offset
,
170 t
->font
->xftfont
->ascent
+ y
+ t
->offset
,
171 (FcChar8
*)text
->str
, l
);
173 c
.color
.red
= t
->color
->r
| t
->color
->r
<< 8;
174 c
.color
.green
= t
->color
->g
| t
->color
->g
<< 8;
175 c
.color
.blue
= t
->color
->b
| t
->color
->b
<< 8;
176 c
.color
.alpha
= 0xff | 0xff << 8; /* fully opaque text */
177 c
.pixel
= t
->color
->pixel
;
179 XftDrawStringUtf8(d
, &c
, t
->font
->xftfont
, x
,
180 t
->font
->xftfont
->ascent
+ y
,
181 (FcChar8
*)text
->str
, l
);
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