1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* viewer-pangoxft.c: PangoXft viewer backend.
*
* Copyright (C) 1999,2004,2005 Red Hat, Inc.
* Copyright (C) 2001 Sun Microsystems
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include "renderdemo.h"
#include "viewer-x.h"
#include <pango/pangoxft.h>
static void
default_substitute (FcPattern *pattern,
gpointer data)
{
FcPatternDel (pattern, FC_DPI);
FcPatternAddInteger (pattern, FC_DPI, opt_dpi);
if (opt_hinting != HINT_DEFAULT)
{
FcPatternDel (pattern, FC_HINTING);
FcPatternAddBool (pattern, FC_HINTING, opt_hinting != HINT_NONE);
FcPatternDel (pattern, FC_AUTOHINT);
FcPatternAddBool (pattern, FC_AUTOHINT, opt_hinting == HINT_AUTO);
}
}
static gpointer
pangoxft_view_create (const PangoViewer *klass)
{
XViewer *instance;
instance = x_view_create (klass);
XftInit (NULL);
pango_xft_set_default_substitute (instance->display, instance->screen,
default_substitute, NULL, NULL);
return instance;
}
static void
pangoxft_view_destroy (gpointer instance)
{
XViewer *x = (XViewer *)instance;
pango_xft_shutdown_display (x->display, x->screen);
x_view_destroy (instance);
}
static PangoContext *
pangoxft_view_get_context (gpointer instance)
{
XViewer *x = (XViewer *) instance;
return pango_xft_get_context (x->display, x->screen);
}
typedef struct
{
XftDraw *draw;
XftColor color;
} MyXftContext;
static void
render_callback (PangoLayout *layout,
int x,
int y,
gpointer context,
gpointer state)
{
MyXftContext *xft_context = (MyXftContext *) context;
pango_xft_render_layout (xft_context->draw,
&xft_context->color,
layout,
x * PANGO_SCALE, y * PANGO_SCALE);
}
static void
pangoxft_view_render (gpointer instance,
gpointer surface,
PangoContext *context,
int width,
int height,
gpointer state)
{
XViewer *x = (XViewer *) instance;
Pixmap pixmap = (Pixmap) surface;
MyXftContext xft_context;
XftDraw *draw;
XftColor color;
draw = XftDrawCreate (x->display, pixmap,
DefaultVisual (x->display, x->screen),
DefaultColormap (x->display, x->screen));
color.color.red = 0xffff;
color.color.blue = 0xffff;
color.color.green = 0xffff;
color.color.alpha = 0xffff;
XftDrawRect (draw, &color, 0, 0, width, height);
color.color.red = 0x0;
color.color.green = 0x0;
color.color.blue = 0x0;
color.color.alpha = 0xffff;
xft_context.draw = draw;
xft_context.color = color;
do_output (context, render_callback, NULL, &xft_context, state, NULL, NULL);
XftDrawDestroy (draw);
}
const PangoViewer pangoxft_viewer = {
"PangoXft",
"xft",
NULL,
pangoxft_view_create,
pangoxft_view_destroy,
pangoxft_view_get_context,
x_view_create_surface,
x_view_destroy_surface,
pangoxft_view_render,
NULL,
x_view_create_window,
x_view_destroy_window,
x_view_display
};
|
