netsurf/riscos/dialog.c

/*
 * This file is part of NetSurf, http://netsurf.sourceforge.net/
 * Licensed under the GNU General Public License,
 *                http://www.opensource.org/licenses/gpl-license
 * Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
 * Copyright 2004 James Bursa <bursa@users.sourceforge.net>
 * Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
 * Copyright 2004 Richard Wilson <not_ginger_matt@users.sourceforge.net>
 */

#include <assert.h>
#include <stddef.h>
#include <string.h>
#include "oslib/colourtrans.h"
#include "oslib/osfile.h"
#include "oslib/osgbpb.h"
#include "oslib/osspriteop.h"
#include "oslib/wimp.h"
#include "netsurf/utils/config.h"
#include "netsurf/desktop/netsurf.h"
#include "netsurf/riscos/constdata.h"
#include "netsurf/riscos/gui.h"
#include "netsurf/riscos/options.h"
#include "netsurf/riscos/theme.h"
#include "netsurf/riscos/wimp.h"
#include "netsurf/utils/log.h"
#include "netsurf/utils/messages.h"
#include "netsurf/utils/utils.h"

wimp_w dialog_info, dialog_saveas, dialog_config, dialog_config_br,
	dialog_config_prox, dialog_config_th, download_template,
#ifdef WITH_AUTH
	dialog_401li,
#endif
	dialog_zoom, dialog_pageinfo, dialog_objinfo, dialog_tooltip,
	dialog_warning, dialog_config_th_pane;

static int font_size;
static int font_min_size;
static char *theme_choice = 0;
static struct theme_entry *theme_list = 0;
static unsigned int theme_list_entries = 0;


static void ro_gui_dialog_click_config(wimp_pointer *pointer);
static void ro_gui_dialog_click_config_br(wimp_pointer *pointer);
static void ro_gui_dialog_update_config_br(void);
static void ro_gui_dialog_click_config_prox(wimp_pointer *pointer);
static void ro_gui_dialog_open_config_th(void);
static void ro_gui_dialog_click_config_th(wimp_pointer *pointer);
static void ro_gui_dialog_click_config_th_pane(wimp_pointer *pointer);
static void ro_gui_redraw_config_th_pane_plot(wimp_draw *redraw);
static void ro_gui_dialog_click_zoom(wimp_pointer *pointer);
static void ro_gui_dialog_reset_zoom(void);
static void ro_gui_dialog_click_warning(wimp_pointer *pointer);
static void set_browser_choices(void);
static void get_browser_choices(void);
static void set_proxy_choices(void);
static void get_proxy_choices(void);
static void set_theme_choices(void);
static void get_theme_choices(void);
static const char *language_name(const char *code);


/**
 * Load and create dialogs from template file.
 */

void ro_gui_dialog_init(void)
{
	dialog_info = ro_gui_dialog_create("info");
	/* fill in about box version info */
	ro_gui_set_icon_string(dialog_info, 4, netsurf_version);

	dialog_saveas = ro_gui_dialog_create("saveas");
	dialog_config = ro_gui_dialog_create("config");
	dialog_config_br = ro_gui_dialog_create("config_br");
	dialog_config_prox = ro_gui_dialog_create("config_prox");
	dialog_config_th = ro_gui_dialog_create("config_th");
	dialog_config_th_pane = ro_gui_dialog_create("config_th_pa");
	dialog_zoom = ro_gui_dialog_create("zoom");
	dialog_pageinfo = ro_gui_dialog_create("pageinfo");
	dialog_objinfo = ro_gui_dialog_create("objectinfo");
	dialog_tooltip = ro_gui_dialog_create("tooltip");
	dialog_warning = ro_gui_dialog_create("warning");

	set_browser_choices();
	set_proxy_choices();
	set_theme_choices();
}


/**
 * Create a window from a template.
 *
 * \param  template_name  name of template to load
 * \return  window handle
 *
 * Exits through die() on error.
 */

wimp_w ro_gui_dialog_create(const char *template_name)
{
	wimp_window *window;
	wimp_w w;
	os_error *error;

	window = ro_gui_dialog_load_template(template_name);

	/* create window */
	error = xwimp_create_window(window, &w);
	if (error) {
		LOG(("xwimp_create_window: 0x%x: %s",
				error->errnum, error->errmess));
		xwimp_close_template();
		die(error->errmess);
	}

	/* the window definition is copied by the wimp and may be freed */
	free(window);

	return w;
}


/**
 * Load a template without creating a window.
 *
 * \param  template_name  name of template to load
 * \return  window block
 *
 * Exits through die() on error.
 */

wimp_window * ro_gui_dialog_load_template(const char *template_name)
{
	char name[20];
	int context, window_size, data_size;
	char *data;
	wimp_window *window;
	os_error *error;

	/* wimp_load_template won't accept a const char * */
	strncpy(name, template_name, sizeof name);

	/* find required buffer sizes */
	error = xwimp_load_template(wimp_GET_SIZE, 0, 0, wimp_NO_FONTS,
			name, 0, &window_size, &data_size, &context);
	if (error) {
		LOG(("xwimp_load_template: 0x%x: %s",
				error->errnum, error->errmess));
		xwimp_close_template();
		die(error->errmess);
	}
	if (!context) {
		LOG(("template '%s' missing", template_name));
		xwimp_close_template();
		die("Template");
	}

	/* allocate space for indirected data and temporary window buffer */
	data = malloc(data_size);
	window = malloc(window_size);
	if (!data || !window) {
		xwimp_close_template();
		die("NoMemory");
	}

	/* load template */
	error = xwimp_load_template(window, data, data + data_size,
			wimp_NO_FONTS, name, 0, 0, 0, 0);
	if (error) {
		LOG(("xwimp_load_template: 0x%x: %s",
				error->errnum, error->errmess));
		xwimp_close_template();
		die(error->errmess);
	}

	return window;
}


/**
 * Open a dialog box, centered on the screen.
 */

void ro_gui_dialog_open(wimp_w w)
{
	int screen_x, screen_y, dx, dy;
	wimp_window_state open;

	/* find screen centre in os units */
	ro_gui_screen_size(&screen_x, &screen_y);
	screen_x /= 2;
	screen_y /= 2;

	/* centre and open */
	open.w = w;
	wimp_get_window_state(&open);
	dx = (open.visible.x1 - open.visible.x0) / 2;
	dy = (open.visible.y1 - open.visible.y0) / 2;
	open.visible.x0 = screen_x - dx;
	open.visible.x1 = screen_x + dx;
	open.visible.y0 = screen_y - dy;
	open.visible.y1 = screen_y + dy;
	open.next = wimp_TOP;
	wimp_open_window((wimp_open *) &open);
}

/**
 * Handle key presses in one of the dialog boxes.
 */

bool ro_gui_dialog_keypress(wimp_key *key)
{
#ifdef WITH_AUTH
	if (key->w == dialog_401li)
	        return ro_gui_401login_keypress(key);
#endif
	return false;
}

/**
 * Handle clicks in one of the dialog boxes.
 */

void ro_gui_dialog_click(wimp_pointer *pointer)
{
	if (pointer->buttons == wimp_CLICK_MENU)
		return;

	if (pointer->w == dialog_config)
		ro_gui_dialog_click_config(pointer);
	else if (pointer->w == dialog_config_br)
		ro_gui_dialog_click_config_br(pointer);
	else if (pointer->w == dialog_config_prox)
		ro_gui_dialog_click_config_prox(pointer);
	else if (pointer->w == dialog_config_th)
		ro_gui_dialog_click_config_th(pointer);
	else if (pointer->w == dialog_config_th_pane)
		ro_gui_dialog_click_config_th_pane(pointer);
#ifdef WITH_AUTH
	else if (pointer->w == dialog_401li)
	        ro_gui_401login_click(pointer);
#endif
	else if (pointer->w == dialog_zoom)
		ro_gui_dialog_click_zoom(pointer);
	else if (pointer->w == dialog_warning)
		ro_gui_dialog_click_warning(pointer);
}


/**
 * Handle clicks in the main Choices dialog.
 */

void ro_gui_dialog_click_config(wimp_pointer *pointer)
{
	switch (pointer->i) {
		case ICON_CONFIG_SAVE:
			get_browser_choices();
			get_proxy_choices();
			get_theme_choices();
			xosfile_create_dir("<Choices$Write>.WWW", 0);
			xosfile_create_dir("<Choices$Write>.WWW.NetSurf", 0);
			options_write("<Choices$Write>.WWW.NetSurf.Choices");
			if (pointer->buttons == wimp_CLICK_SELECT) {
				ro_gui_dialog_close(dialog_config_br);
				ro_gui_dialog_close(dialog_config_prox);
				ro_gui_dialog_close(dialog_config_th);
				ro_gui_dialog_close(dialog_config);
			}
			break;
		case ICON_CONFIG_CANCEL:
			if (pointer->buttons == wimp_CLICK_SELECT) {
				ro_gui_dialog_close(dialog_config_br);
				ro_gui_dialog_close(dialog_config_prox);
				ro_gui_dialog_close(dialog_config_th);
				ro_gui_dialog_close(dialog_config);
			}
			set_browser_choices();
			set_proxy_choices();
			set_theme_choices();
			break;
		case ICON_CONFIG_BROWSER:
			ro_gui_dialog_open(dialog_config_br);
			break;
		case ICON_CONFIG_PROXY:
			ro_gui_dialog_open(dialog_config_prox);
			break;
		case ICON_CONFIG_THEME:
			ro_gui_dialog_open_config_th();
			break;
	}
}


/**
 * Handle clicks in the Browser Choices dialog.
 */

void ro_gui_dialog_click_config_br(wimp_pointer *pointer)
{
	switch (pointer->i) {
		case ICON_CONFIG_BR_OK:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_br);
			break;
		case ICON_CONFIG_BR_CANCEL:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_br);
			set_browser_choices();
			break;
		case ICON_CONFIG_BR_FONTSIZE_DEC:
			if (font_size == 50)
				break;
			font_size--;
			if (font_size < font_min_size)
				font_min_size = font_size;
			ro_gui_dialog_update_config_br();
			break;
		case ICON_CONFIG_BR_FONTSIZE_INC:
			if (font_size == 1000)
				break;
			font_size++;
			ro_gui_dialog_update_config_br();
			break;
		case ICON_CONFIG_BR_MINSIZE_DEC:
			if (font_min_size == 10)
				break;
			font_min_size--;
			ro_gui_dialog_update_config_br();
			break;
		case ICON_CONFIG_BR_MINSIZE_INC:
			if (font_min_size == 500)
				break;
			font_min_size++;
			if (font_size < font_min_size)
				font_size = font_min_size;
			ro_gui_dialog_update_config_br();
			break;
	}
}


/**
 * Update font size icons in browser choices dialog.
 */

void ro_gui_dialog_update_config_br(void)
{
	char s[10];
	sprintf(s, "%i.%ipt", font_size / 10, font_size % 10);
	ro_gui_set_icon_string(dialog_config_br, ICON_CONFIG_BR_FONTSIZE, s);
	sprintf(s, "%i.%ipt", font_min_size / 10, font_min_size % 10);
	ro_gui_set_icon_string(dialog_config_br, ICON_CONFIG_BR_MINSIZE, s);
}


/**
 * Handle clicks in the Proxy Choices dialog.
 */

void ro_gui_dialog_click_config_prox(wimp_pointer *pointer)
{
	switch (pointer->i) {
		case ICON_CONFIG_PROX_OK:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_prox);
			break;
		case ICON_CONFIG_PROX_CANCEL:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_prox);
			set_proxy_choices();
			break;
	}
}


/**
 * Prepare and open the Theme Choices dialog.
 */

void ro_gui_dialog_open_config_th(void)
{
	wimp_window_state state;
	if (theme_list)
		ro_theme_list_free(theme_list, theme_list_entries);

	theme_list = ro_theme_list(&theme_list_entries);
	if (!theme_list)
		return;

	ro_gui_dialog_open(dialog_config_th);
//	ro_gui_dialog_open(dialog_config_th_pane);

	state.w = dialog_config_th;
	xwimp_get_window_state(&state);
	state.w = dialog_config_th_pane;
	state.visible.x0 += 24;
	state.visible.y1 -= 12;
	state.xscroll = 0;
	state.yscroll = 0;
	state.next = wimp_TOP;
	if (xwimp_open_window_nested((wimp_open *)&state, dialog_config_th,
			wimp_CHILD_LINKS_PARENT_VISIBLE_BOTTOM_OR_LEFT
					<< wimp_CHILD_XORIGIN_SHIFT |
			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
					<< wimp_CHILD_YORIGIN_SHIFT |
			wimp_CHILD_LINKS_PARENT_VISIBLE_BOTTOM_OR_LEFT
				<< wimp_CHILD_LS_EDGE_SHIFT |
			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
					<< wimp_CHILD_BS_EDGE_SHIFT |
			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT
					<< wimp_CHILD_RS_EDGE_SHIFT |
			wimp_CHILD_LINKS_PARENT_VISIBLE_TOP_OR_RIGHT									<< wimp_CHILD_TS_EDGE_SHIFT)) {
		LOG(("Unable to open theme pane window"));
	}
}


/**
 * Handle clicks in the Theme Choices dialog.
 */

void ro_gui_dialog_click_config_th(wimp_pointer *pointer)
{
	switch (pointer->i) {
		case ICON_CONFIG_TH_OK:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_th);
			break;
		case ICON_CONFIG_TH_CANCEL:
			if (pointer->buttons == wimp_CLICK_SELECT)
				ro_gui_dialog_close(dialog_config_th);
			set_theme_choices();
			break;
		case ICON_CONFIG_TH_MANAGE:
			os_cli("Filer_OpenDir " THEMES_DIR);
			break;
		case ICON_CONFIG_TH_GET:
			browser_window_create(THEMES_URL, NULL);
			break;
	}
}


#define THEME_HEIGHT 80

/**
 * Handle clicks in the scrolling Theme Choices list pane.
 */

void ro_gui_dialog_click_config_th_pane(wimp_pointer *pointer)
{
	unsigned int i, y;
	wimp_window_state state;
	os_error *error;

	state.w = dialog_config_th_pane;
	error = xwimp_get_window_state(&state);
	if (error) {
		LOG(("xwimp_get_window_state: 0x%x: %s",
				error->errnum, error->errmess));
		warn_user("WimpError", error->errmess);
		return;
	}

	y = -(pointer->pos.y - (state.visible.y1 - state.yscroll)) /
			THEME_HEIGHT;

	if (!theme_list || theme_list_entries <= y)
		return;

	if (theme_choice && strcmp(theme_choice, theme_list[y].name) == 0)
		return;

	if (theme_choice) {
		for (i = 0; i != theme_list_entries &&
				strcmp(theme_choice, theme_list[i].name); i++)
			;
		if (i != theme_list_entries) {
			error = xwimp_force_redraw(dialog_config_th_pane,
					0, -i * THEME_HEIGHT - THEME_HEIGHT - 2,
					600, -i * THEME_HEIGHT + 2);
			if (error) {
				LOG(("xwimp_force_redraw: 0x%x: %s",
						error->errnum, error->errmess));
				warn_user("WimpError", error->errmess);
				return;
			}
		}
	}

	free(theme_choice);
	theme_choice = strdup(theme_list[y].name);

	error = xwimp_force_redraw(dialog_config_th_pane,
			0, -y * THEME_HEIGHT - THEME_HEIGHT - 2,
			600, -y * THEME_HEIGHT + 2);
	if (error) {
		LOG(("xwimp_force_redraw: 0x%x: %s",
				error->errnum, error->errmess));
		warn_user("WimpError", error->errmess);
		return;
	}
}


/**
 * Redraw the scrolling Theme Choices list pane.
 */

void ro_gui_redraw_config_th_pane(wimp_draw *redraw)
{
	osbool more;
	os_error *error;

	error = xwimp_redraw_window(redraw, &more);
	if (error) {
		LOG(("xwimp_redraw_window: 0x%x: %s",
				error->errnum, error->errmess));
		warn_user("WimpError", error->errmess);
		return;
	}
	while (more) {
		ro_gui_redraw_config_th_pane_plot(redraw);
		error = xwimp_get_rectangle(redraw, &more);
		if (error) {
			LOG(("xwimp_get_rectangle: 0x%x: %s",
					error->errnum, error->errmess));
			warn_user("WimpError", error->errmess);
			return;
		}
	}
}


/**
 * Redraw the scrolling Theme Choices list pane.
 */

void ro_gui_redraw_config_th_pane_plot(wimp_draw *redraw)
{
	unsigned int i, j;
	int x0 = redraw->box.x0 - redraw->xscroll;
	int y0 = redraw->box.y1 - redraw->yscroll;
	int x;
	static char sprite[][10] = { "back", "forward", "stop", "reload",
			"history", "scale", "save" };
	wimp_icon icon;
	os_error *error = 0;

	icon.flags = wimp_ICON_SPRITE | wimp_ICON_HCENTRED |
			wimp_ICON_VCENTRED | wimp_ICON_INDIRECTED;

	for (i = 0; i != theme_list_entries; i++) {
		error = xwimptextop_set_colour(os_COLOUR_BLACK,
				os_COLOUR_VERY_LIGHT_GREY);
		if (error)
			break;

		/* plot background for selected theme */
		if (theme_choice &&
				strcmp(theme_list[i].name, theme_choice) == 0) {
			error = xcolourtrans_set_gcol(os_COLOUR_LIGHT_GREY,
					0, os_ACTION_OVERWRITE, 0, 0);
			if (error)
				break;
			error = xos_plot(os_MOVE_TO, x0, y0 - i * THEME_HEIGHT);
			if (error)
				break;
			error = xos_plot(os_PLOT_RECTANGLE | os_PLOT_BY,
					600, -THEME_HEIGHT);
			if (error)
				break;
			error = xwimptextop_set_colour(os_COLOUR_BLACK,
					os_COLOUR_LIGHT_GREY);
			if (error)
				break;
		}

		/* icons */
		icon.extent.y0 = -i * THEME_HEIGHT - THEME_HEIGHT;
		icon.extent.y1 = -i * THEME_HEIGHT;
		icon.data.indirected_sprite.area = theme_list[i].sprite_area;
		icon.data.indirected_sprite.size = 12;
		for (j = 0, x = 0; j != sizeof sprite / sizeof sprite[0]; j++) {
			icon.extent.x0 = x;
			icon.extent.x1 = x + 50;
			icon.data.indirected_sprite.id =
					(osspriteop_id) sprite[j];
			error = xwimp_plot_icon(&icon);
			if (error)
				break;
			x += 50;
		}
		if (error)
			break;

		/* theme name */
		error = xwimptextop_paint(0, theme_list[i].name,
				x0 + 400,
				y0 - i * THEME_HEIGHT - THEME_HEIGHT / 2);
		if (error)
			break;
	}

	if (error) {
		LOG(("0x%x: %s", error->errnum, error->errmess));
		warn_user("MiscError", error->errmess);
	}
}


/**
 * Handle clicks in the Scale view dialog.
 */

void ro_gui_dialog_click_zoom(wimp_pointer *pointer)
{
	unsigned int scale;
	int stepping = 10;
	scale = atoi(ro_gui_get_icon_string(dialog_zoom, ICON_ZOOM_VALUE));

	/*	Adjust moves values the opposite direction
	*/
	if (pointer->buttons == wimp_CLICK_ADJUST) stepping = -stepping;

	switch (pointer->i) {
		case ICON_ZOOM_DEC: scale -= stepping; break;
		case ICON_ZOOM_INC: scale += stepping; break;
		case ICON_ZOOM_50:  scale = 50;	break;
		case ICON_ZOOM_80:  scale = 80; break;
		case ICON_ZOOM_100: scale = 100; break;
		case ICON_ZOOM_120: scale = 120; break;
	}

	if (scale < 10)
		scale = 10;
	else if (500 < scale)
		scale = 500;
	ro_gui_set_icon_integer(dialog_zoom, ICON_ZOOM_VALUE, scale);

	if (pointer->i == ICON_ZOOM_OK) {
		current_gui->scale = scale * 0.01;
		current_gui->data.browser.reformat_pending = true;
		gui_reformat_pending = true;
	}

	if ((pointer->buttons == wimp_CLICK_ADJUST) && (pointer->i == ICON_ZOOM_CANCEL)) {
	  	ro_gui_dialog_reset_zoom();
	}

	if (pointer->buttons == wimp_CLICK_SELECT &&
			(pointer->i == ICON_ZOOM_CANCEL ||
			 pointer->i == ICON_ZOOM_OK))
		wimp_create_menu(wimp_CLOSE_MENU, 0, 0);
}


/**
 * Resets the Scale view dialog.
 */

void ro_gui_dialog_reset_zoom(void) {
	char scale_buffer[8];
	sprintf(scale_buffer, "%.0f", current_gui->scale * 100);
	ro_gui_set_icon_string(dialog_zoom, ICON_ZOOM_VALUE, scale_buffer);
}


/**
 * Handle clicks in the warning dialog.
 */

void ro_gui_dialog_click_warning(wimp_pointer *pointer)
{
	if (pointer->i == ICON_WARNING_CONTINUE)
		ro_gui_dialog_close(dialog_warning);
}


/**
 * Close a dialog box.
 */

void ro_gui_dialog_close(wimp_w close)
{
	os_error *error;

	error = xwimp_close_window(close);
	if (error) {
		LOG(("xwimp_close_window: 0x%x: %s",
				error->errnum, error->errmess));
		warn_user("WimpError", error->errmess);
		return;
	}

	if (close == dialog_config_th) {
		error = xwimp_close_window(dialog_config_th_pane);

		if (theme_list) {
			ro_theme_list_free(theme_list, theme_list_entries);
			theme_list = 0;
		}

		if (error) {
			LOG(("xwimp_close_window: 0x%x: %s",
					error->errnum, error->errmess));
			warn_user("WimpError", error->errmess);
			return;
		}
	}
}


/**
 * Update the browser choices dialog with the current options.
 */

void set_browser_choices(void) {
	font_size = option_font_size;
	font_min_size = option_font_min_size;
	ro_gui_dialog_update_config_br();
	ro_gui_set_icon_string(dialog_config_br, ICON_CONFIG_BR_LANG,
			language_name(option_language ?
					option_language : "en"));
	ro_gui_set_icon_string(dialog_config_br, ICON_CONFIG_BR_ALANG,
			language_name(option_accept_language ?
					option_accept_language : "en"));
}


/**
 * Set the current options to the settings in the browser choices dialog.
 */

void get_browser_choices(void) {
	option_font_size = font_size;
	option_font_min_size = font_min_size;
}


/**
 * Update the proxy choices dialog with the current options.
 */

void set_proxy_choices(void)
{
	ro_gui_set_icon_selected_state(dialog_config_prox, ICON_CONFIG_PROX_HTTP,
			option_http_proxy);
	ro_gui_set_icon_string(dialog_config_prox, ICON_CONFIG_PROX_HTTPHOST,
			option_http_proxy_host ? option_http_proxy_host : "");
	ro_gui_set_icon_integer(dialog_config_prox, ICON_CONFIG_PROX_HTTPPORT,
			option_http_proxy_port);
}


/**
 * Set the current options to the settings in the proxy choices dialog.
 */

void get_proxy_choices(void)
{
	option_http_proxy = ro_gui_get_icon_selected_state(dialog_config_prox,
			ICON_CONFIG_PROX_HTTP);
	free(option_http_proxy_host);
	option_http_proxy_host = strdup(ro_gui_get_icon_string(dialog_config_prox,
			ICON_CONFIG_PROX_HTTPHOST));
	option_http_proxy_port = atoi(ro_gui_get_icon_string(dialog_config_prox,
			ICON_CONFIG_PROX_HTTPPORT));
}


/**
 * Update the theme choices dialog with the current options.
 */

void set_theme_choices(void)
{
	free(theme_choice);
	theme_choice = 0;
	if (option_theme)
		theme_choice = strdup(option_theme);
}


/**
 * Set the current options to the settings in the theme choices dialog.
 */

void get_theme_choices(void)
{
	free(option_theme);
	option_theme = strdup(theme_choice);
}


/**
 * Convert a 2-letter ISO language code to the language name.
 *
 * \param  code  2-letter ISO language code
 * \return  language name, or code if unknown
 */

const char *language_name(const char *code)
{
	char key[] = "lang_xx";
	key[5] = code[0];
	key[6] = code[1];
	return messages_get(key);
}