[GTK3] Move config handling into settings.c

gtk3/main.c

@@ -5,17 +5,18 @@
 #include <stdio.h>
 #include <string.h>
 #include <Core/gb.h>
+
+#include "settings.h"
 #include "shader.h"
 
 #define str(x) #x
 #define xstr(x) str(x)
 
-#define SETTINGS_FILE "sameboy-gtk3-settings.ini"
-
 typedef struct UserData {
 	bool fullscreen;
 	GFile *file;
 	const gchar *bootrom_path;
+	const gchar *config_path;
 	GB_model_t model;
 } UserData;
 
@@ -26,13 +27,11 @@ typedef struct{
 
 static void run(UserData *user_data);
 
-static GKeyFile *key_file;
 static GtkApplication *main_application;
 static GtkBuilder *builder;
 static GtkApplicationWindow *main_window;
 static GtkGLArea *gl_area;
 static shader_t shader;
-static gchar* settings_file_path;
 
 static GB_gameboy_t gb;
 static uint32_t *image_buffers[3];
@@ -46,17 +45,6 @@ static Rect rect;
 
 static bool running = true;
 
-static void save_settings(void) {
-	GError *error = NULL;
-
-	// Save as a file.
-	if (!g_key_file_save_to_file(key_file, settings_file_path, &error)) {
-		g_warning ("Error saving %s: %s", settings_file_path, error->message);
-		g_error_free(error);
-		return;
-	}
-}
-
 static unsigned char number_of_buffers(void) {
 	bool should_blend = true;
 
@@ -269,7 +257,9 @@ G_MODULE_EXPORT void gl_finish() { }
 
 // This functions gets called immediately after registration of the GApplication
 static void startup(GApplication *app, gpointer user_data_gptr) {
-	// UserData *user_data = user_data_gptr;
+	UserData *user_data = user_data_gptr;
+
+	init_settings(user_data->config_path);
 
 	builder = gtk_builder_new_from_resource(RESOURCE_PREFIX "ui/window.ui");
 	gtk_builder_connect_signals(builder, NULL);
@@ -295,20 +285,6 @@ static void startup(GApplication *app, gpointer user_data_gptr) {
 	g_signal_connect(gl_area, "unrealize", G_CALLBACK(gl_finish), NULL);
 	gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(gl_area));
 
-	GError *error = NULL;
-	settings_file_path = g_build_filename(g_get_user_config_dir(), SETTINGS_FILE, NULL);
-	key_file = g_key_file_new();
-
-	g_print("Trying to load settings from %s\n", settings_file_path);
-
-	if (!g_key_file_load_from_file(key_file, settings_file_path, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, &error)) {
-		if (!g_error_matches(error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
-			g_warning("Error loading %s: %s", settings_file_path, error->message);
-		}
-
-		g_error_free(error);
-	}
-
 	// Handle the whole menubar situation …
 	if (show_menubar()) {
 		// Show a classic menubar
@@ -634,6 +610,7 @@ int main(int argc, char *argv[]) {
 		{ "fullscreen", 'f', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL, "Start in fullscreen mode", NULL },
 		{ "bootrom",    'b', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &user_data.bootrom_path, "Path to the boot ROM to use", "<file path>" },
 		{ "model",      'm', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, NULL, "Override the model type to emulate", "<model type>" },
+		{ "config",     'c', G_OPTION_FLAG_NONE, G_OPTION_ARG_STRING, &user_data.config_path, "Override the path of the configuration file", "<file path>" },
 		{ NULL }
 	};
 	// Setup our command line information

gtk3/settings.c

@@ -0,0 +1,39 @@
+#include "settings.h"
+
+void init_settings(const gchar *path) {
+	key_file = g_key_file_new();
+
+	GError *error = NULL;
+
+	if (path != NULL) {
+		settings_file_path = path;
+	}
+	else {
+		settings_file_path = g_build_filename(g_get_user_config_dir(), SETTINGS_FILE, NULL);
+	}
+
+	load_settings();
+}
+
+void load_settings(void) {
+	GError *error = NULL;
+
+	g_print("Trying to load settings from %s\n", settings_file_path);
+
+	if (!g_key_file_load_from_file(key_file, settings_file_path, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, &error)) {
+		g_warning("Error loading %s: %s", settings_file_path, error->message);
+		g_error_free(error);
+	}
+}
+
+void save_settings(void) {
+	GError *error = NULL;
+
+	g_print("Trying to save settings to %s\n", settings_file_path);
+	
+	if (!g_key_file_save_to_file(key_file, settings_file_path, &error)) {
+		g_warning ("Error saving %s: %s", settings_file_path, error->message);
+		g_error_free(error);
+		return;
+	}
+}

gtk3/settings.h

@@ -0,0 +1,16 @@
+#ifndef settings_h
+#define settings_h
+
+#include <glib.h>
+#include <gio/gio.h>
+
+#define SETTINGS_FILE "sameboy-gtk3-settings.ini"
+
+GKeyFile *key_file;
+const gchar* settings_file_path;
+
+void init_settings(const gchar *path);
+void load_settings(void);
+void save_settings(void);
+
+#endif /* settings_h */