1 /**********************************************************************
2 Freeciv - Copyright (C) 2005 The Freeciv Team
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2, or (at your option)
6 any later version.
7
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
12 ***********************************************************************/
13 #ifdef HAVE_CONFIG_H
14 #include <fc_config.h>
15 #endif
16
17 #include <unistd.h>
18 #include <string.h>
19 #include <sys/stat.h>
20
21 /* utility */
22 #include "log.h"
23 #include "mem.h"
24 #include "shared.h"
25 #include "string_vector.h"
26 #include "support.h"
27
28 /* client/include */
29 #include "themes_g.h"
30
31 /* client */
32 #include "themes_common.h"
33
34 /***************************************************************************
35 A theme is a portion of client data, which for following reasons should
36 be separated from a tileset:
37 - Theme is not only graphic related
38 - Theme can be changed independently from tileset
39 - Theme implementation is gui specific and most themes can not be shared
40 between different guis.
41 Theme is recognized by its name.
42
43 Theme is stored in a directory called like the theme. The directory contains
44 some data files. Each gui defines its own format in the
45 get_useable_themes_in_directory() function.
46 ****************************************************************************/
47
48 /* A directory containing a list of usable themes */
49 struct theme_directory {
50 /* Path on the filesystem */
51 char *path;
52 /* Array of theme names */
53 char **themes;
54 /* Themes array length */
55 int num_themes;
56 };
57
58 /* List of all directories with themes */
59 static int num_directories;
60 struct theme_directory *directories;
61
62 /****************************************************************************
63 Initialized themes data
64 ****************************************************************************/
init_themes(void)65 void init_themes(void)
66 {
67 int i;
68
69 /* get GUI-specific theme directories */
70 char **gui_directories =
71 get_gui_specific_themes_directories(&num_directories);
72
73 directories =
74 fc_malloc(sizeof(struct theme_directory) * num_directories);
75
76 for (i = 0; i < num_directories; i++) {
77 directories[i].path = gui_directories[i];
78
79 /* get useable themes in this directory */
80 directories[i].themes =
81 get_useable_themes_in_directory(directories[i].path,
82 &(directories[i].num_themes));
83 }
84 free(gui_directories);
85 }
86
87 /****************************************************************************
88 Return a static string vector of useable theme names.
89 ****************************************************************************/
get_themes_list(const struct option * poption)90 const struct strvec *get_themes_list(const struct option *poption)
91 {
92 static struct strvec *themes_list = NULL;
93
94 if (NULL == themes_list) {
95 int i, j, k;
96
97 themes_list = strvec_new();
98 for (i = 0; i < num_directories; i++) {
99 for (j = 0; j < directories[i].num_themes; j++) {
100 for (k = 0; k < strvec_size(themes_list); k++) {
101 if (strcmp(strvec_get(themes_list, k),
102 directories[i].themes[j]) == 0) {
103 break;
104 }
105 }
106 if (k == strvec_size(themes_list)) {
107 strvec_append(themes_list, directories[i].themes[j]);
108 }
109 }
110 }
111 }
112
113 return themes_list;
114 }
115
116 /****************************************************************************
117 Loads a theme with the given name. First matching directory will be used.
118 If there's no such theme the function returns FALSE.
119 ****************************************************************************/
load_theme(const char * theme_name)120 bool load_theme(const char *theme_name)
121 {
122 int i, j;
123 for (i = 0; i < num_directories; i++) {
124 for (j = 0; j < directories[i].num_themes; j++) {
125 if (strcmp(theme_name, directories[i].themes[j]) == 0) {
126 gui_load_theme(directories[i].path, directories[i].themes[j]);
127 return TRUE;
128 }
129 }
130 }
131 return FALSE;
132 }
133
134 /****************************************************************************
135 Wrapper for load_theme. It's is used by local options dialog
136 ****************************************************************************/
theme_reread_callback(struct option * poption)137 void theme_reread_callback(struct option *poption)
138 {
139 const char *theme_name = option_str_get(poption);
140
141 fc_assert_ret(NULL != theme_name && theme_name[0] != '\0');
142 load_theme(theme_name);
143 }
144