rcfile.c

Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。

/*
 * GQview
 * (C) 2004 John Ellis
 *
 * Author: John Ellis
 *
 * This software is released under the GNU General Public License (GNU GPL).
 * Please read the included file COPYING for more information.
 * This software comes with no warranty of any kind, use at your own risk!
 */


#include "gqview.h"
#include "rcfile.h"

#include "filelist.h"
#include "slideshow.h"
#include "ui_fileops.h"


/*
 *-----------------------------------------------------------------------------
 * line write/parse routines (private)
 *-----------------------------------------------------------------------------
 */ 

gchar *quoted_value(const gchar *text)
{
	const gchar *ptr;
	gint c = 0;
	gint l = strlen(text);

	if (l == 0) return NULL;

	while (c < l && text[c] !='"') c++;
	if (text[c] == '"')
		{
		gint e;
		c++;
		ptr = text + c;
		e = c;
		while (e < l && text[e] !='"') e++;
		if (text[e] == '"')
			{
			if (e - c > 0)
				{
				return g_strndup(ptr, e - c);
				}
			}
		}
	else
		/* for compatibility with older formats (<0.3.7)
		 * read a line without quotes too */
		{
		c = 0;
		while (c < l && text[c] !=' ' && text[c] !=8 && text[c] != '\n') c++;
		if (c != 0)
			{
			return g_strndup(text, c);
			}
		}

	return NULL;
}

static void write_char_option(FILE *f, gchar *label, gchar *text)
{
	if (text)
		fprintf(f,"%s: \"%s\"\n", label, text);
	else
		fprintf(f,"%s: \n", label);
}

static gchar *read_char_option(FILE *f, gchar *option, gchar *label, gchar *value, gchar *text)
{
	if (strcasecmp(option, label) == 0)
		{
		g_free(text);
		text = quoted_value(value);
		}
	return text;
}

static void write_int_option(FILE *f, gchar *label, gint n)
{
	fprintf(f,"%s: %d\n\n", label, n);
}

static gint read_int_option(FILE *f, gchar *option, gchar *label, gchar *value, gint n)
{
	if (strcasecmp(option, label) == 0)
		{
		n = strtol(value, NULL, 10);
		}
	return n;
}

static void write_int_unit_option(FILE *f, gchar *label, gint n, gint subunits)
{
	gint l, r;

	if (subunits > 0)
		{
		l = n / subunits;
		r = n % subunits;
		}
	else
		{
		l = n;
		r = 0;
		}

	fprintf(f,"%s: %d.%d\n\n", label, l, r);
}

static gint read_int_unit_option(FILE *f, gchar *option, gchar *label, gchar *value, gint n, gint subunits)
{
	if (strcasecmp(option, label) == 0)
		{
		gint l, r;
		gchar *ptr;

		ptr = value;
		while (*ptr != '\0' && *ptr != '.') ptr++;
		if (*ptr == '.')
			{
			*ptr = '\0';
			l = strtol(value, NULL, 10);
			*ptr = '.';
			ptr++;
			r = strtol(ptr, NULL, 10);
			}
		else
			{
			l = strtol(value, NULL, 10);
			r = 0;
			}

		n = l * subunits + r;
		}
	return n;
}

static void write_bool_option(FILE *f, gchar *label, gint n)
{
	fprintf(f,"%s: ", label);
	if (n) fprintf(f,"true\n"); else fprintf(f,"false\n");
	fprintf(f,"\n");
}

static gint read_bool_option(FILE *f, gchar *option, gchar *label, gchar *value, gint n)
{
	if (strcasecmp(option, label) == 0)
		{
		if (strcasecmp(value, "true") == 0)
			n = TRUE;
		else
			n = FALSE;
		}
	return n;
}

/*
 *-----------------------------------------------------------------------------
 * save configuration (public)
 *-----------------------------------------------------------------------------
 */ 

void save_options(void)
{
	FILE *f;
	gchar *rc_path;
	gchar *rc_pathl;
	gint i;

	rc_path = g_strconcat(homedir(), "/", GQVIEW_RC_DIR, "/", RC_FILE_NAME, NULL);

	rc_pathl = path_from_utf8(rc_path);
	f = fopen(rc_pathl, "w");
	g_free(rc_pathl);
	if (!f)
		{
		gchar *buf;

		buf = g_strdup_printf(_("error saving config file: %s\n"), rc_path);
		print_term(buf);
		g_free(buf);

		g_free(rc_path);
		return;
		}

	fprintf(f,"######################################################################\n");
	fprintf(f,"#                         GQview config file         version %7s #\n", VERSION);
	fprintf(f,"######################################################################\n");
	fprintf(f,"\n");
	fprintf(f,"# Note: This file is autogenerated. Options can be changed here,\n");
	fprintf(f,"#       but user comments and formatting will be lost.\n");
	fprintf(f,"\n");
	fprintf(f,"##### General Options #####\n\n");

	write_int_option(f, "layout_style", layout_style);
	write_char_option(f, "layout_order", layout_order);
	fprintf(f,"\n");
	write_bool_option(f, "layout_view_as_icons", layout_view_icons);
	write_bool_option(f, "layout_view_as_tree", layout_view_tree);
	write_bool_option(f, "show_icon_names", show_icon_names);
	fprintf(f,"\n");

	write_bool_option(f, "tree_descend_folders", tree_descend_subdirs);
	write_bool_option(f, "lazy_image_sync", lazy_image_sync);
	write_bool_option(f, "update_on_time_change", update_on_time_change);
	write_bool_option(f, "exif_auto_rotate", exif_rotate_enable);
	fprintf(f,"\n");

	write_bool_option(f, "enable_startup_path", startup_path_enable);
	write_char_option(f, "startup_path", startup_path);
	fprintf(f,"\n");

	fprintf(f,"zoom_mode: ");
	if (zoom_mode == ZOOM_RESET_ORIGINAL) fprintf(f,"original\n");
	if (zoom_mode == ZOOM_RESET_FIT_WINDOW) fprintf(f,"fit\n");
	if (zoom_mode == ZOOM_RESET_NONE) fprintf(f,"dont_change\n");

	write_bool_option(f, "two_pass_scaling", two_pass_zoom);

	write_bool_option(f, "zoom_to_fit_allow_expand", zoom_to_fit_expands);
	fprintf(f,"\n");

	write_bool_option(f, "fit_window_to_image", fit_window);
	write_bool_option(f, "limit_window_size", limit_window_size);
	write_int_option(f, "max_window_size", max_window_size);
	fprintf(f,"\n");

	write_bool_option(f, "progressive_keyboard_scrolling", progressive_key_scrolling);
	write_int_option(f, "scroll_reset_method", scroll_reset_method);
	fprintf(f,"\n");

	write_bool_option(f, "enable_thumbnails", thumbnails_enabled);
	write_int_option(f, "thumbnail_width", thumb_max_width);
	write_int_option(f, "thumbnail_height", thumb_max_height);
	write_bool_option(f, "cache_thumbnails", enable_thumb_caching);
	write_bool_option(f, "cache_thumbnails_into_dirs", enable_thumb_dirs);
	write_bool_option(f, "thumbnail_fast", thumbnail_fast);
	write_bool_option(f, "use_xvpics_thumbnails", use_xvpics_thumbnails);
	write_bool_option(f, "thumbnail_spec_standard", thumbnail_spec_standard);
	fprintf(f,"\n");

	write_bool_option(f, "local_metadata", enable_metadata_dirs);
	fprintf(f,"\n");

	write_int_option(f, "sort_method", (gint)file_sort_method);
	write_bool_option(f, "sort_ascending", file_sort_ascending);
	write_bool_option(f, "sort_case_sensitive", file_sort_case_sensitive);
	fprintf(f,"\n");

	write_bool_option(f, "confirm_delete", confirm_delete);
	write_bool_option(f, "enable_delete_key", enable_delete_key);
	write_bool_option(f, "safe_delete", safe_delete_enable);
	write_char_option(f, "safe_delete_path", safe_delete_path);
	write_int_option(f, "safe_delete_size", safe_delete_size);
	fprintf(f,"\n");
	write_bool_option(f, "tools_float", tools_float);
	write_bool_option(f, "tools_hidden", tools_hidden);
	write_bool_option(f, "restore_tool_state", restore_tool);

	write_bool_option(f, "toolbar_hidden", toolbar_hidden);

	write_bool_option(f, "mouse_wheel_scrolls", mousewheel_scrolls);
	write_bool_option(f, "in_place_rename", enable_in_place_rename);

	write_int_option(f, "open_recent_max", recent_list_max);

	write_int_option(f, "image_cache_size_max", tile_cache_max);

	write_int_option(f, "thumbnail_quality", thumbnail_quality);
	write_int_option(f, "zoom_quality", zoom_quality);
	write_int_option(f, "dither_quality", dither_quality);

	write_int_option(f, "zoom_increment", zoom_increment);

	write_bool_option(f, "enable_read_ahead", enable_read_ahead);

	write_bool_option(f, "display_dialogs_under_mouse", place_dialogs_under_mouse);

	write_bool_option(f, "black_window_background", black_window_background);

	write_int_option(f, "fullscreen_screen", fullscreen_screen);
	write_bool_option(f, "fullscreen_clean_flip", fullscreen_clean_flip);
	write_bool_option(f, "fullscreen_disable_saver", fullscreen_disable_saver);
	write_bool_option(f, "fullscreen_above", fullscreen_above);

	write_int_option(f, "custom_similarity_threshold", dupe_custom_threshold);

	fprintf(f,"\n##### Slideshow Options #####\n\n");

	write_int_unit_option(f, "slideshow_delay", slideshow_delay, SLIDESHOW_SUBSECOND_PRECISION);

	write_bool_option(f, "slideshow_random", slideshow_random);
	write_bool_option(f, "slideshow_repeat", slideshow_repeat);

	fprintf(f,"\n##### Filtering Options #####\n\n");

	write_bool_option(f, "show_dotfiles", show_dot_files);
	write_bool_option(f, "disable_filtering", file_filter_disable);
	filter_write_list(f);

	fprintf(f,"\n##### External Programs #####\n");
	fprintf(f,"# Maximum of 10 programs (external_1 through external_10)\n");
	fprintf(f,"# format: external_n: \"menu name\" \"command line\"\n\n");

	for (i = 0; i < GQVIEW_EDITOR_SLOTS; i++)
		{
		fprintf(f,"external_%d: \"", i+1);
		if (editor_name[i]) fprintf(f, "%s", editor_name[i]);
		fprintf(f, "\" \"");
		if (editor_command[i]) fprintf(f, "%s", editor_command[i]);
		fprintf(f, "\"\n");
		}

	fprintf(f,"\n##### Collection Options #####\n\n");

	write_bool_option(f, "rectangular_selections", collection_rectangular_selection);