main.c

来自「Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。」· C语言 代码 · 共 1,367 行 · 第 1/3 页

		layout_set_path(NULL, text);
		}
	else
		{
		printf("remote sent filename that does not exist:\"%s\"\n", text);
		}
}

static void gr_file_view(const gchar *text, gpointer data)
{
	view_window_new(text);
}

static void gr_list_clear(const gchar *text, gpointer data)
{
	if (gqview_command_collection) collection_unref(gqview_command_collection);
	gqview_command_collection = NULL;
}

static void gr_list_add(const gchar *text, gpointer data)
{
	gint new = TRUE;

	if (!gqview_command_collection)
		{
		CollectionData *cd;

		cd = collection_new("");

		g_free(cd->path);
		cd->path = NULL;
		g_free(cd->name);
		cd->name = g_strdup(_("Command line"));

		gqview_command_collection = cd;
		}
	else
		{
		new = (!collection_get_first(gqview_command_collection));
		}

	if (collection_add(gqview_command_collection, text, FALSE) && new)
		{
		layout_image_set_collection(NULL, gqview_command_collection,
					    collection_get_first(gqview_command_collection));
		}
}

static void gr_raise(const gchar *text, gpointer data)
{
	LayoutWindow *lw = NULL;

	if (layout_valid(&lw))
		{
		gtk_window_present(GTK_WINDOW(lw->window));
		}
}

typedef struct _RemoteCommandEntry RemoteCommandEntry;
struct _RemoteCommandEntry {
	gchar *opt_s;
	gchar *opt_l;
	void (*func)(const gchar *text, gpointer data);
	gint needs_extra;
	gint prefer_command_line;
	gchar *description;
};

static RemoteCommandEntry remote_commands[] = {
	/* short, long                  callback,               extra, prefer,description */
	{ "-n", "--next",               gr_image_next,          FALSE, FALSE, N_("next image") },
	{ "-b", "--back",               gr_image_prev,          FALSE, FALSE, N_("previous image") },
	{ NULL, "--first",              gr_image_first,         FALSE, FALSE, N_("first image") },
        { NULL, "--last",               gr_image_last,          FALSE, FALSE, N_("last image") },
	{ "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  N_("toggle full screen") },
	{ "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, N_("start full screen") },
	{ "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, N_("stop full screen") },
	{ "-s", "--slideshow",          gr_slideshow_toggle,	FALSE, TRUE,  N_("toggle slide show") },
	{ "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, N_("start slide show") },
	{ "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, N_("stop slide show") },
	{ "-sr","--slideshow-recurse",  gr_slideshow_start_rec, TRUE,  FALSE, N_("start recursive slide show") },
	{ "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("set slide show delay in seconds") },
	{ "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  N_("show tools") },
	{ "-t", "--tools-hide",	        gr_tools_hide,          FALSE, TRUE,  N_("hide tools") },
	{ "-q", "--quit",               gr_quit,                FALSE, FALSE, N_("quit") },
	{ NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("open file") },
	{ NULL, "view:",		gr_file_view,		TRUE,  FALSE, N_("open file in new window") },
	{ NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL },
	{ NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, NULL },
	{ NULL, "raise",		gr_raise,		FALSE, FALSE, NULL },
	{ NULL, NULL, NULL, FALSE, FALSE, NULL }
};

static RemoteCommandEntry *gqview_remote_command_find(const gchar *text, const gchar **offset)
{
	gint match = FALSE;
	gint i;

	i = 0;
	while (!match && remote_commands[i].func != NULL)
		{
		if (remote_commands[i].needs_extra)
			{
			if (remote_commands[i].opt_s &&
			    strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
				{
				if (offset) *offset = text + strlen(remote_commands[i].opt_s);
				return &remote_commands[i];
				}
			else if (remote_commands[i].opt_l &&
				 strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
				{
				if (offset) *offset = text + strlen(remote_commands[i].opt_l);
				return &remote_commands[i];
				}
			}
		else
			{
			if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
			    (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
				{
				if (offset) *offset = text;
				return &remote_commands[i];
				}
			}

		i++;
		}

	return NULL;
}

static void gqview_remote_cb(RemoteConnection *rc, const gchar *text, gpointer data)
{
	RemoteCommandEntry *entry;
	const gchar *offset;

	entry = gqview_remote_command_find(text, &offset);
	if (entry && entry->func)
		{
		entry->func(offset, data);
		}
	else
		{
		printf("unknown remote command:%s\n", text);
		}
}

static void gqview_remote_help(void)
{
	gint i;

	print_term(_("Remote command list:\n"));

	i = 0;
	while (remote_commands[i].func != NULL)
		{
		if (remote_commands[i].description)
			{
			gchar *buf;

			buf = g_strdup_printf("  %-3s%s %-20s %s\n",
				(remote_commands[i].opt_s) ? remote_commands[i].opt_s : "",
				(remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
				(remote_commands[i].opt_l) ? remote_commands[i].opt_l : "",
				_(remote_commands[i].description));

			print_term(buf);
			g_free(buf);
			}
		i++;
		}
}

static GList *gqview_remote_build_list(GList *list, int argc, char *argv[])
{
	gint i;

	i = 1;
	while (i < argc)
		{
		RemoteCommandEntry *entry;

		entry = gqview_remote_command_find(argv[i], NULL);
		if (entry)
			{
			list = g_list_append(list, argv[i]);
			}
		i++;
		}

	return list;
}

static void gqview_remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
				  GList *cmd_list, GList *collection_list)
{
	RemoteConnection *rc;
	gint started = FALSE;
	gchar *buf;

	buf = g_strconcat(homedir(), "/", GQVIEW_RC_DIR, "/.command", NULL);
	rc = remote_client_open(buf);
	if (!rc)
		{
		GString *command;
		GList *work;
		gint retry_count = 12;
		gint blank = FALSE;

		print_term(_("Remote GQview not running, starting..."));
		command = g_string_new(arg_exec);

		work = remote_list;
		while (work)
			{
			gchar *text;
			RemoteCommandEntry *entry;

			text = work->data;
			work = work->next;

			entry = gqview_remote_command_find(text, NULL);
			if (entry)
				{
				if (entry->prefer_command_line)
					{
					remote_list = g_list_remove(remote_list, text);
					g_string_append(command, " ");
					g_string_append(command, text);
					}
				if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
					{
					blank = TRUE;
					}
				}
			}

		if (blank || cmd_list || path) g_string_append(command, " --blank");
		if (debug) g_string_append(command, " --debug");

		g_string_append(command, " &");
		system(command->str);
		g_string_free(command, TRUE);

		while (!rc && retry_count > 0)
			{
			usleep((retry_count > 10) ? 500000 : 1000000);
			rc = remote_client_open(buf);
			if (!rc) print_term(".");
			retry_count--;
			}

		print_term("\n");

		started = TRUE;
		}
	g_free(buf);

	if (rc)
		{
		GList *work;
		const gchar *prefix;
		gint use_path = TRUE;
		gint sent = FALSE;

		work = remote_list;
		while (work)
			{
			gchar *text;
			RemoteCommandEntry *entry;

			text = work->data;
			work = work->next;

			entry = gqview_remote_command_find(text, NULL);
			if (entry &&
			    entry->opt_l &&
			    strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;

			remote_client_send(rc, text);

			sent = TRUE;
			}

		if (cmd_list && cmd_list->next)
			{
			prefix = "--list-add:";
			remote_client_send(rc, "--list-clear");
			}
		else
			{
			prefix = "file:";
			}

		work = cmd_list;
		while (work)
			{
			const gchar *name;
			gchar *text;

			name = work->data;
			work = work->next;

			text = g_strconcat(prefix, name, NULL);
			remote_client_send(rc, text);
			g_free(text);

			sent = TRUE;
			}

		if (path && !cmd_list && use_path)
			{
			gchar *text;

			text = g_strdup_printf("file:%s", path);
			remote_client_send(rc, text);
			g_free(text);

			sent = TRUE;
			}

		work = collection_list;
		while (work)
			{
			const gchar *name;
			gchar *text;

			name = work->data;
			work = work->next;

			text = g_strdup_printf("file:%s", name);
			remote_client_send(rc, text);
			g_free(text);

			sent = TRUE;
			}

		if (!started && !sent)
			{
			remote_client_send(rc, "raise");
			}
		}
	else
		{
		print_term(_("Remote not available\n"));
		}

	_exit(0);
}

/*
 *-----------------------------------------------------------------------------
 * command line parser (private) hehe, who needs popt anyway?
 *-----------------------------------------------------------------------------
 */ 

static gint startup_blank = FALSE;
static gint startup_full_screen = FALSE;
static gint startup_in_slideshow = FALSE;
static gint startup_command_line_collection = FALSE;


static void parse_command_line_add_file(const gchar *new_path, gchar **path, gchar **file,
				        GList **list, GList **collection_list)
{
	gchar *path_parsed;

	path_parsed = g_strdup(new_path);
	parse_out_relatives(path_parsed);

	if (file_extension_match(new_path, ".gqv"))
		{
		*collection_list = g_list_append(*collection_list, path_parsed);
		}
	else
		{
		if (!*path) *path = remove_level_from_path(path_parsed);
		if (!*file) *file = g_strdup(path_parsed);
		*list = g_list_append(*list, path_parsed);
		}
}

static void parse_command_line(int argc, char *argv[], gchar **path, gchar **file,
			       GList **cmd_list, GList **collection_list)
{
	GList *list = NULL;
	GList *remote_list = NULL;
	gint remote_do = FALSE;

	if (argc > 1)
		{
		gint i;
		gchar *base_dir = get_current_dir();
		i = 1;
		while (i < argc)
			{
			const gchar *cmd_line = argv[i];
			gchar *cmd_all = concat_dir_and_file(base_dir, cmd_line);

			if (!*path && cmd_line[0] == '/' && isdir(cmd_line))
				{
				*path = g_strdup(cmd_line);
				}
			else if (!*path && isdir(cmd_all))
				{
				*path = g_strdup(cmd_all);
				}
			else if (cmd_line[0] == '/' && isfile(cmd_line))
				{
				parse_command_line_add_file(cmd_line, path, file, &list, collection_list);
				}
			else if (isfile(cmd_all))
				{
				parse_command_line_add_file(cmd_all, path, file, &list, collection_list);
				}
			else if (strcmp(cmd_line, "--debug") == 0)
				{
				/* we now increment the debug state for verbosity */
				debug++;
				printf("debugging output enabled (level %d)\n", debug);
				}
			else if (strcmp(cmd_line, "+t") == 0 ||
				 strcmp(cmd_line, "--with-tools") == 0)
				{
				tools_float = FALSE;
				tools_hidden = FALSE;

				remote_list = g_list_append(remote_list, "+t");
				}
			else if (strcmp(cmd_line, "-t") == 0 ||
				 strcmp(cmd_line, "--without-tools") == 0)
				{
				tools_hidden = TRUE;

				remote_list = g_list_append(remote_list, "-t");
				}
			else if (strcmp(cmd_line, "-f") == 0 ||
				 strcmp(cmd_line, "--fullscreen") == 0)
				{
				startup_full_screen = TRUE;
				}
			else if (strcmp(cmd_line, "-s") == 0 ||
				 strcmp(cmd_line, "--slideshow") == 0)
				{
				startup_in_slideshow = TRUE;
				}
			else if (strcmp(cmd_line, "-l") == 0 ||
				 strcmp(cmd_line, "--list") == 0)
				{
				startup_command_line_collection = TRUE;
				}
			else if (strcmp(cmd_line, "-r") == 0 ||
				 strcmp(cmd_line, "--remote") == 0)
				{
				if (!remote_do)