Imported Upstream version 0.2+gitdfdad95upstream/0.2+gitdfdad95

1 files changed, 202 insertions, 0 deletions

diff --git a/src/utilities/config.vala b/src/utilities/config.vala
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+++ b/src/utilities/config.vala
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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 open_at_mouse { get; set; default = true; }
+    public bool turbo_mode { get; set; default = false; }
+    public bool auto_start { get; set; default = false; }
+    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("open_at_mouse", open_at_mouse ? "true" : "false");
+                writer.write_attribute("turbo_mode", turbo_mode ? "true" : "false");
+            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 "open_at_mouse":
+                            open_at_mouse = bool.parse(attr_content);
+                            break;
+                        case "turbo_mode":
+                            turbo_mode = bool.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 != null)
+                    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 != null)
+                    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;
+                    theme.load_images();
+                    break;
+                }
+            }
+            if (theme == null) {
+                theme = themes[0];
+                warning("Theme \"" + current + "\" not found! Using fallback...");
+            }
+        }
+        else error("No theme found!");
+    }
+    
+}
+
+}