SameBoy/OpenDialog/gtk.c
2020-04-25 22:48:48 +03:00

114 lines
3.3 KiB
C

#include "open_dialog.h"
#include <stdlib.h>
#include <stdio.h>
#include <dlfcn.h>
#include <stdbool.h>
#include <string.h>
#define GTK_FILE_CHOOSER_ACTION_OPEN 0
#define GTK_RESPONSE_ACCEPT -3
#define GTK_RESPONSE_CANCEL -6
void *_gtk_file_chooser_dialog_new (const char *title,
void *parent,
int action,
const char *first_button_text,
...);
bool _gtk_init_check (int *argc, char ***argv);
int _gtk_dialog_run(void *);
void _g_free(void *);
void _gtk_widget_destroy(void *);
char *_gtk_file_chooser_get_filename(void *);
void _g_log_set_default_handler (void *function, void *data);
void *_gtk_file_filter_new(void);
void _gtk_file_filter_add_pattern(void *filter, const char *pattern);
void _gtk_file_filter_set_name(void *filter, const char *name);
void _gtk_file_chooser_add_filter(void *dialog, void *filter);
void _gtk_main_iteration(void);
bool _gtk_events_pending(void);
#define LAZY(symbol) static typeof(_##symbol) *symbol = NULL;\
if (symbol == NULL) symbol = dlsym(handle, #symbol);\
if (symbol == NULL) goto lazy_error
#define TRY_DLOPEN(name) handle = handle? handle : dlopen(name, RTLD_NOW)
void nop(){}
char *do_open_rom_dialog(void)
{
static void *handle = NULL;
TRY_DLOPEN("libgtk-3.so");
TRY_DLOPEN("libgtk-3.so.0");
TRY_DLOPEN("libgtk-2.so");
TRY_DLOPEN("libgtk-2.so.0");
if (!handle) {
goto lazy_error;
}
LAZY(gtk_init_check);
LAZY(gtk_file_chooser_dialog_new);
LAZY(gtk_dialog_run);
LAZY(g_free);
LAZY(gtk_widget_destroy);
LAZY(gtk_file_chooser_get_filename);
LAZY(g_log_set_default_handler);
LAZY(gtk_file_filter_new);
LAZY(gtk_file_filter_add_pattern);
LAZY(gtk_file_filter_set_name);
LAZY(gtk_file_chooser_add_filter);
LAZY(gtk_events_pending);
LAZY(gtk_main_iteration);
/* Shut up GTK */
g_log_set_default_handler(nop, NULL);
gtk_init_check(0, 0);
void *dialog = gtk_file_chooser_dialog_new("Open ROM",
0,
GTK_FILE_CHOOSER_ACTION_OPEN,
"_Cancel", GTK_RESPONSE_CANCEL,
"_Open", GTK_RESPONSE_ACCEPT,
NULL );
void *filter = gtk_file_filter_new();
gtk_file_filter_add_pattern(filter, "*.gb");
gtk_file_filter_add_pattern(filter, "*.gbc");
gtk_file_filter_add_pattern(filter, "*.sgb");
gtk_file_filter_add_pattern(filter, "*.isx");
gtk_file_filter_set_name(filter, "Game Boy ROMs");
gtk_file_chooser_add_filter(dialog, filter);
int res = gtk_dialog_run (dialog);
char *ret = NULL;
if (res == GTK_RESPONSE_ACCEPT) {
char *filename;
filename = gtk_file_chooser_get_filename(dialog);
ret = strdup(filename);
g_free(filename);
}
while (gtk_events_pending()) {
gtk_main_iteration();
}
gtk_widget_destroy(dialog);
while (gtk_events_pending()) {
gtk_main_iteration();
}
return ret;
lazy_error:
fprintf(stderr, "Failed to display GTK dialog\n");
return NULL;
}