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/*
Copyright (c) 2011 by Simon Schneegans
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace GnomePie {
/////////////////////////////////////////////////////////////////////////
/// A singleton class for storing global settings. These settings can
/// be loaded from and saved to an XML file.
/////////////////////////////////////////////////////////////////////////
public class Config : GLib.Object {
/////////////////////////////////////////////////////////////////////
/// The singleton instance of this class.
/////////////////////////////////////////////////////////////////////
private static Config _instance = null;
/////////////////////////////////////////////////////////////////////
/// Returns the singleton instance.
/////////////////////////////////////////////////////////////////////
public static Config global {
get {
if (_instance == null) {
_instance = new Config();
_instance.load();
}
return _instance;
}
private set {
_instance = value;
}
}
/////////////////////////////////////////////////////////////////////
/// All settings variables.
/////////////////////////////////////////////////////////////////////
public Theme theme { get; set; }
public double refresh_rate { get; set; default = 60.0; }
public double global_scale { get; set; default = 1.0; }
public bool show_indicator { get; set; default = true; }
public bool show_captions { get; set; default = true; }
public bool auto_start { get; set; default = false; }
public int showed_news { get; set; default = 0; }
public Gee.ArrayList<Theme?> themes { get; private set; }
/////////////////////////////////////////////////////////////////////
/// Saves all above variables to a file.
/////////////////////////////////////////////////////////////////////
public void save() {
var writer = new Xml.TextWriter.filename(Paths.settings);
writer.start_document("1.0");
writer.start_element("settings");
writer.write_attribute("theme", theme.name);
writer.write_attribute("refresh_rate", refresh_rate.to_string());
writer.write_attribute("global_scale", global_scale.to_string());
writer.write_attribute("show_indicator", show_indicator ? "true" : "false");
writer.write_attribute("show_captions", show_captions ? "true" : "false");
writer.write_attribute("showed_news", showed_news.to_string());
writer.end_element();
writer.end_document();
}
/////////////////////////////////////////////////////////////////////
/// Loads all settings variables from a file.
/////////////////////////////////////////////////////////////////////
private void load() {
// check for auto_start filename
this.auto_start = FileUtils.test(Paths.autostart, FileTest.EXISTS);
// parse the settings file
Xml.Parser.init();
Xml.Doc* settingsXML = Xml.Parser.parse_file(Paths.settings);
bool error_occrured = false;
string theme_name = "";
if (settingsXML != null) {
Xml.Node* root = settingsXML->get_root_element();
if (root != null) {
for (Xml.Attr* attribute = root->properties; attribute != null; attribute = attribute->next) {
string attr_name = attribute->name.down();
string attr_content = attribute->children->content;
switch (attr_name) {
case "theme":
theme_name = attr_content;
break;
case "refresh_rate":
refresh_rate = double.parse(attr_content);
break;
case "global_scale":
global_scale = double.parse(attr_content);
global_scale.clamp(0.5, 2.0);
break;
case "show_indicator":
show_indicator = bool.parse(attr_content);
break;
case "show_captions":
show_captions = bool.parse(attr_content);
break;
case "showed_news":
showed_news = int.parse(attr_content);
break;
default:
warning("Invalid setting \"" + attr_name + "\" in gnome-pie.conf!");
break;
}
}
Xml.Parser.cleanup();
} else {
warning("Error loading settings: gnome-pie.conf is empty! Using defaults...");
error_occrured = true;
}
delete settingsXML;
} else {
warning("Error loading settings: gnome-pie.conf not found! Using defaults...");
error_occrured = true;
}
load_themes(theme_name);
if (error_occrured) save();
}
/////////////////////////////////////////////////////////////////////
/// Registers all themes in the user's and in the global
/// theme directory.
/////////////////////////////////////////////////////////////////////
public void load_themes(string current) {
themes = new Gee.ArrayList<Theme?>();
try {
string name;
// load global themes
var d = Dir.open(Paths.global_themes);
while ((name = d.read_name()) != null) {
var theme = new Theme(Paths.global_themes + "/" + name);
if (theme.load())
themes.add(theme);
}
// load local themes
d = Dir.open(Paths.local_themes);
while ((name = d.read_name()) != null) {
var theme = new Theme(Paths.local_themes + "/" + name);
if (theme.load())
themes.add(theme);
}
} catch (Error e) {
warning (e.message);
}
if (themes.size > 0) {
if (current == "") {
current = "Unity";
warning("No theme specified! Using default...");
}
foreach (var t in themes) {
if (t.name == current) {
theme = t;
break;
}
}
if (theme == null) {
theme = themes[0];
warning("Theme \"" + current + "\" not found! Using fallback...");
}
theme.load_images();
}
else error("No theme found!");
}
}
}
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