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annotate nuklear_ui/filechooser_gtk.c @ 2355:94cf5cc89227

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Add an option to use the system file picker on Linux and Windows
author Michael Pavone <pavone@retrodev.com>
date Sat, 21 Oct 2023 19:22:01 -0700
parents
children 12d594e69e04
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rev   line source
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94cf5cc89227 Add an option to use the system file picker on Linux and Windows
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1 #include <stddef.h>
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2 #include <stdint.h>
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3 #include <stdio.h>
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4 #include <gtk/gtk.h>
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5 #include <dlfcn.h>
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6
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7 typedef GtkWidget* (*gtk_file_chooser_dialog_new_t)(const gchar *title, GtkWindow *parent, GtkFileChooserAction action, const gchar *first_button_text, ...);
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8 typedef gint (*gtk_dialog_run_t)(GtkDialog *dialog);
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9 typedef void (*gtk_widget_destroy_t)(GtkWidget *widget);
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10 typedef gchar* (*gtk_file_chooser_get_filename_t)(GtkFileChooser *chooser);
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11 typedef gboolean (*gtk_init_check_t)(int *argc, char **argv);
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12 typedef gboolean (*gtk_file_chooser_set_current_folder_t)(GtkFileChooser *chooser, const gchar *filename);
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13 typedef void (*gtk_file_chooser_setadd_filter_t)(GtkFileChooser *chooser, GtkFileFilter *filter);
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14 typedef gboolean (*gtk_events_pending_t)(void);
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15 typedef gboolean (*gtk_main_iteration_t)(void);
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16 typedef GtkFileFilter* (*gtk_file_filter_new_t)(void);
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17 typedef void (*gtk_file_filter_set_name_t)(GtkFileFilter *filter, const gchar *name);
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18 typedef void (*gtk_file_filter_add_pattern_t)(GtkFileFilter *filter, const gchar *pattern);
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19
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20 typedef struct {
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21 gtk_file_chooser_dialog_new_t gtk_file_chooser_dialog_new;
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22 gtk_dialog_run_t gtk_dialog_run;
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23 gtk_widget_destroy_t gtk_widget_destroy;
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24 gtk_file_chooser_get_filename_t gtk_file_chooser_get_filename;
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25 gtk_file_chooser_set_current_folder_t gtk_file_chooser_set_current_folder;
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26 gtk_file_chooser_setadd_filter_t gtk_file_chooser_add_filter;
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27 gtk_file_chooser_setadd_filter_t gtk_file_chooser_set_filter;
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28 gtk_file_filter_new_t gtk_file_filter_new;
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29 gtk_file_filter_set_name_t gtk_file_filter_set_name;
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30 gtk_file_filter_add_pattern_t gtk_file_filter_add_pattern;
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31 gtk_init_check_t gtk_init_check;
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32 gtk_events_pending_t gtk_events_pending;
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33 gtk_main_iteration_t gtk_main_iteration;
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34 } gtk;
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35
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36 #define LOAD_SYM(s, t, name) t->name = dlsym(s, #name); if (!t->name) { fputs("filechooser_gtk: Failed to load " #name "\n", stderr); goto error_cleanup; }
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37
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38 static gtk* check_init_gtk(void)
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39 {
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40 static const char *so_paths[] = {
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41 #ifdef X86_64
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42 "/usr/lib/x86_64-linux-gnu/libgtk-3.so.0",
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43 "/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0",
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44 #elif X86_32
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45 "/usr/lib/i386-linux-gnu/libgtk-3.so.0",
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46 "/usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0",
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47 #else
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48 //TODO: what are these paths on ARM?
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49 #endif
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50 };
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51 static gtk *funcs;
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52 static uint8_t already_init;
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53 if (!already_init) {
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54 void *so = NULL;
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55 for (int i = 0; !so && i < sizeof(so_paths)/sizeof(*so_paths); i++)
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56 {
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57 so = dlopen(so_paths[i], RTLD_NOW | RTLD_LOCAL);
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58 }
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59 if (so) {
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60 funcs = calloc(1, sizeof(gtk));
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61
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62 LOAD_SYM(so, funcs, gtk_file_chooser_dialog_new)
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63 LOAD_SYM(so, funcs, gtk_dialog_run)
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64 LOAD_SYM(so, funcs, gtk_widget_destroy)
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65 LOAD_SYM(so, funcs, gtk_file_chooser_get_filename)
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66 LOAD_SYM(so, funcs, gtk_file_chooser_set_current_folder)
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67 LOAD_SYM(so, funcs, gtk_file_chooser_add_filter)
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68 LOAD_SYM(so, funcs, gtk_file_chooser_set_filter)
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69 LOAD_SYM(so, funcs, gtk_file_filter_new)
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70 LOAD_SYM(so, funcs, gtk_file_filter_set_name)
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71 LOAD_SYM(so, funcs, gtk_file_filter_add_pattern)
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72 LOAD_SYM(so, funcs, gtk_init_check)
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73 LOAD_SYM(so, funcs, gtk_events_pending)
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74 LOAD_SYM(so, funcs, gtk_main_iteration)
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75
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76 if (funcs->gtk_init_check(NULL, NULL)) {
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77 return funcs;
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78 }
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79
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80 error_cleanup:
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81 free(funcs);
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82 dlclose(so);
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83 }
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84 }
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85 return funcs;
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86 }
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87
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88 uint8_t native_filechooser_available(void)
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89 {
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90 return !!check_init_gtk();
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91 }
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92
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93 char* native_filechooser_pick(const char *title, const char *start_directory)
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94 {
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95 gtk *g = check_init_gtk();
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96 if (!g) {
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97 return NULL;
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98 }
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99 GtkFileChooser *chooser = (GtkFileChooser *)g->gtk_file_chooser_dialog_new(
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100 title, NULL, GTK_FILE_CHOOSER_ACTION_OPEN,
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101 "Cancel", GTK_RESPONSE_CANCEL,
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102 "Open", GTK_RESPONSE_ACCEPT,
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103 NULL
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104 );
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105 if (!chooser) {
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106 return NULL;
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107 }
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108 if (start_directory) {
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109 g->gtk_file_chooser_set_current_folder(chooser, start_directory);
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110 }
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111 GtkFileFilter *filter = g->gtk_file_filter_new();
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112 g->gtk_file_filter_set_name(filter, "All Files");
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113 g->gtk_file_filter_add_pattern(filter, "*");
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114 g->gtk_file_chooser_add_filter(chooser, filter);
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115
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116 filter = g->gtk_file_filter_new();
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117 g->gtk_file_filter_set_name(filter, "All Supported Types");
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118 g->gtk_file_filter_add_pattern(filter, "*.zip");
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119 g->gtk_file_filter_add_pattern(filter, "*.bin");
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120 g->gtk_file_filter_add_pattern(filter, "*.bin.gz");
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121 g->gtk_file_filter_add_pattern(filter, "*.gen");
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122 g->gtk_file_filter_add_pattern(filter, "*.gen.gz");
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123 g->gtk_file_filter_add_pattern(filter, "*.md");
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124 g->gtk_file_filter_add_pattern(filter, "*.md.gz");
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125 g->gtk_file_filter_add_pattern(filter, "*.sms");
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126 g->gtk_file_filter_add_pattern(filter, "*.sms.gz");
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127 g->gtk_file_filter_add_pattern(filter, "*.gg");
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128 g->gtk_file_filter_add_pattern(filter, "*.gg.gz");
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129 g->gtk_file_filter_add_pattern(filter, "*.sg");
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130 g->gtk_file_filter_add_pattern(filter, "*.sg.gz");
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131 g->gtk_file_filter_add_pattern(filter, "*.cue");
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132 g->gtk_file_filter_add_pattern(filter, "*.toc");
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133 g->gtk_file_filter_add_pattern(filter, "*.flac");
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134 g->gtk_file_filter_add_pattern(filter, "*.vgm");
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135 g->gtk_file_filter_add_pattern(filter, "*.vgz");
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136 g->gtk_file_filter_add_pattern(filter, "*.vgm.gz");
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137 g->gtk_file_chooser_add_filter(chooser, filter);
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138 g->gtk_file_chooser_set_filter(chooser, filter);
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139
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140 filter = g->gtk_file_filter_new();
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141 g->gtk_file_filter_set_name(filter, "Genesis/MD");
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142 g->gtk_file_filter_add_pattern(filter, "*.zip");
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143 g->gtk_file_filter_add_pattern(filter, "*.bin");
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144 g->gtk_file_filter_add_pattern(filter, "*.bin.gz");
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145 g->gtk_file_filter_add_pattern(filter, "*.gen");
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146 g->gtk_file_filter_add_pattern(filter, "*.gen.gz");
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147 g->gtk_file_filter_add_pattern(filter, "*.md");
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148 g->gtk_file_filter_add_pattern(filter, "*.md.gz");
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149 g->gtk_file_chooser_add_filter(chooser, filter);
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150
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151 filter = g->gtk_file_filter_new();
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152 g->gtk_file_filter_set_name(filter, "Sega/Mega CD");
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153 g->gtk_file_filter_add_pattern(filter, "*.cue");
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154 g->gtk_file_filter_add_pattern(filter, "*.toc");
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155 g->gtk_file_chooser_add_filter(chooser, filter);
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156
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157 filter = g->gtk_file_filter_new();
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158 g->gtk_file_filter_set_name(filter, "Sega 8-bit");
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159 g->gtk_file_filter_add_pattern(filter, "*.sms");
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160 g->gtk_file_filter_add_pattern(filter, "*.sms.gz");
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161 g->gtk_file_filter_add_pattern(filter, "*.gg");
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162 g->gtk_file_filter_add_pattern(filter, "*.gg.gz");
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163 g->gtk_file_filter_add_pattern(filter, "*.sg");
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164 g->gtk_file_filter_add_pattern(filter, "*.sg.gz");
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165 g->gtk_file_chooser_add_filter(chooser, filter);
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166
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167 filter = g->gtk_file_filter_new();
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168 g->gtk_file_filter_set_name(filter, "Audio/VGM");
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169 g->gtk_file_filter_add_pattern(filter, "*.flac");
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170 g->gtk_file_filter_add_pattern(filter, "*.vgm");
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171 g->gtk_file_filter_add_pattern(filter, "*.vgz");
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172 g->gtk_file_filter_add_pattern(filter, "*.vgm.gz");
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173 g->gtk_file_chooser_add_filter(chooser, filter);
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174
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175 char *ret = NULL;
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176 if (GTK_RESPONSE_ACCEPT == g->gtk_dialog_run((GtkDialog*)chooser)) {
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177 ret = g->gtk_file_chooser_get_filename(chooser);
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178 }
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179 g->gtk_widget_destroy((GtkWidget *)chooser);
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180 while (g->gtk_events_pending())
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181 {
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182 g->gtk_main_iteration();
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183 }
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184 return ret;
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185 }