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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* Themes added by The Rasterman <raster@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <gmodule.h>
#include "gtkthemes.h"
#include "gtkrc.h"
#include "gtkintl.h"
#include "gtkalias.h"
typedef struct _GtkThemeEngineClass GtkThemeEngineClass;
struct _GtkThemeEngine
{
GTypeModule parent_instance;
GModule *library;
void (*init) (GTypeModule *);
void (*exit) (void);
GtkRcStyle *(*create_rc_style) ();
gchar *name;
};
struct _GtkThemeEngineClass
{
GTypeModuleClass parent_class;
};
static GHashTable *engine_hash = NULL;
static gboolean
gtk_theme_engine_load (GTypeModule *module)
{
GtkThemeEngine *engine = GTK_THEME_ENGINE (module);
gchar *engine_path;
engine_path = gtk_rc_find_module_in_path (engine->name);
if (!engine_path)
{
g_warning (_("Unable to locate theme engine in module_path: \"%s\","),
engine->name);
return FALSE;
}
/* load the lib */
GTK_NOTE (MISC, g_message ("Loading Theme %s\n", engine_path));
engine->library = g_module_open (engine_path, 0);
g_free(engine_path);
if (!engine->library)
{
g_warning (g_module_error());
return FALSE;
}
/* extract symbols from the lib */
if (!g_module_symbol (engine->library, "theme_init",
(gpointer *)&engine->init) ||
!g_module_symbol (engine->library, "theme_exit",
(gpointer *)&engine->exit) ||
!g_module_symbol (engine->library, "theme_create_rc_style",
(gpointer *)&engine->create_rc_style))
{
g_warning (g_module_error());
g_module_close (engine->library);
return FALSE;
}
/* call the theme's init (theme_init) function to let it */
/* setup anything it needs to set up. */
engine->init (module);
return TRUE;
}
static void
gtk_theme_engine_unload (GTypeModule *module)
{
GtkThemeEngine *engine = GTK_THEME_ENGINE (module);
engine->exit();
g_module_close (engine->library);
engine->library = NULL;
engine->init = NULL;
engine->exit = NULL;
engine->create_rc_style = NULL;
}
static void
gtk_theme_engine_class_init (GtkThemeEngineClass *class)
{
GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (class);
module_class->load = gtk_theme_engine_load;
module_class->unload = gtk_theme_engine_unload;
}
GType
gtk_theme_engine_get_type (void)
{
static GType theme_engine_type = 0;
if (!theme_engine_type)
{
static const GTypeInfo theme_engine_info = {
sizeof (GtkThemeEngineClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_theme_engine_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkThemeEngine),
0, /* n_preallocs */
NULL, /* instance_init */
};
theme_engine_type =
g_type_register_static (G_TYPE_TYPE_MODULE, "GtkThemeEngine",
&theme_engine_info, 0);
}
return theme_engine_type;
}
GtkThemeEngine*
gtk_theme_engine_get (const gchar *name)
{
GtkThemeEngine *result;
if (!engine_hash)
engine_hash = g_hash_table_new (g_str_hash, g_str_equal);
/* get the library name for the theme
*/
result = g_hash_table_lookup (engine_hash, name);
if (!result)
{
result = g_object_new (GTK_TYPE_THEME_ENGINE, NULL);
g_type_module_set_name (G_TYPE_MODULE (result), name);
result->name = g_strdup (name);
g_hash_table_insert (engine_hash, result->name, result);
}
if (!g_type_module_use (G_TYPE_MODULE (result)))
return NULL;
return result;
}
GtkRcStyle *
gtk_theme_engine_create_rc_style (GtkThemeEngine *engine)
{
g_return_val_if_fail (engine != NULL, NULL);
return engine->create_rc_style ();
}
#define __GTK_THEMES_C__
#include "gtkaliasdef.c"
|
