Utilities/Config.cs
author moel.mich
Sun, 18 Jul 2010 17:08:33 +0000
changeset 157 0b5cc38501e1
parent 128 cea5477b4d72
permissions -rw-r--r--
Delete the config file if it can not be parsed, and restart with a new one.
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/*
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  Version: MPL 1.1/GPL 2.0/LGPL 2.1
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  The contents of this file are subject to the Mozilla Public License Version
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  1.1 (the "License"); you may not use this file except in compliance with
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  the License. You may obtain a copy of the License at
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  http://www.mozilla.org/MPL/
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  Software distributed under the License is distributed on an "AS IS" basis,
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  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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  for the specific language governing rights and limitations under the License.
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  The Original Code is the Open Hardware Monitor code.
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  The Initial Developer of the Original Code is 
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  Michael Möller <m.moeller@gmx.ch>.
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  Portions created by the Initial Developer are Copyright (C) 2009-2010
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  the Initial Developer. All Rights Reserved.
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  Contributor(s):
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  Alternatively, the contents of this file may be used under the terms of
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  either the GNU General Public License Version 2 or later (the "GPL"), or
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  the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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  in which case the provisions of the GPL or the LGPL are applicable instead
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  of those above. If you wish to allow use of your version of this file only
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  under the terms of either the GPL or the LGPL, and not to allow others to
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  use your version of this file under the terms of the MPL, indicate your
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  decision by deleting the provisions above and replace them with the notice
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  and other provisions required by the GPL or the LGPL. If you do not delete
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  the provisions above, a recipient may use your version of this file under
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  the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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namespace OpenHardwareMonitor.Utilities {
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  public sealed class Config {
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    private static readonly Config instance = new Config();
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    private string fileName;
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    private System.Configuration.Configuration config;
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    private Config() {
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      this.fileName = Path.ChangeExtension(
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        System.Windows.Forms.Application.ExecutablePath, ".config");
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      System.Configuration.ExeConfigurationFileMap fileMap = 
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        new System.Configuration.ExeConfigurationFileMap();
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      fileMap.ExeConfigFilename = fileName;        
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      config = System.Configuration.ConfigurationManager.
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        OpenMappedExeConfiguration(fileMap, 
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        System.Configuration.ConfigurationUserLevel.None);
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      try {
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        // try to load the settings
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        System.Configuration.KeyValueConfigurationCollection collection =
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          config.AppSettings.Settings;        
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      } catch {
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        // if an exception is thrown, start with a new config file
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        if (File.Exists(fileName))
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          File.Delete(fileName);
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        config = System.Configuration.ConfigurationManager.
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          OpenMappedExeConfiguration(fileMap,
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          System.Configuration.ConfigurationUserLevel.None);
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      }
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    }
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    private void SaveConfig() {
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      string tempName = Path.ChangeExtension(fileName, ".tmp");
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      if (File.Exists(tempName))
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        File.Delete(tempName);
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      try {
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        config.SaveAs(tempName);
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        if (File.Exists(fileName) && File.Exists(tempName))
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          File.Delete(fileName);
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        File.Move(tempName, fileName);
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      } catch (System.Configuration.ConfigurationErrorsException) { }
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    }
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    public static void Save() {
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      instance.SaveConfig();
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    }
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    public static Config Settings {
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      get {
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        return instance;
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      }
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    }
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    public string this[string name] {
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      get {
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        System.Configuration.KeyValueConfigurationElement element =
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          config.AppSettings.Settings[name];
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        if (element != null)
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          return element.Value;
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        else
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          return null;
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      }
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      set {
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        config.AppSettings.Settings.Remove(name);
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        config.AppSettings.Settings.Add(name, value);
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      }
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    }
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    public static bool Contains(string name) {
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      System.Configuration.KeyValueConfigurationElement element =
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        instance.config.AppSettings.Settings[name];
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      return element != null;
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    }
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    public static void Remove(string name) {
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      instance.config.AppSettings.Settings.Remove(name);
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    }
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    public static void Set(string name, bool value) {
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      instance[name] = value ? "true" : "false";
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    }
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    public static bool Get(string name, bool value) {
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      System.Configuration.KeyValueConfigurationElement element =
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        instance.config.AppSettings.Settings[name];
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      if (element == null)
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        return value;
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      else
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        return element.Value == "true"; 
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    }
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    public static void Set(string name, int value) {
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      instance[name] = value.ToString();
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    }
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    public static int Get(string name, int value) {
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      System.Configuration.KeyValueConfigurationElement element =
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        instance.config.AppSettings.Settings[name];
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      if (element == null)
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        return value;
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      else {
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        int parsedValue;
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        if (int.TryParse(element.Value, out parsedValue))
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          return parsedValue;
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        else
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          return value;
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      }
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    }
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    public static void Set(string name, Color color) {
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      instance[name] = color.ToArgb().ToString("X8");
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    }
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    public static Color Get(string name, Color value) {
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      System.Configuration.KeyValueConfigurationElement element =
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        instance.config.AppSettings.Settings[name];
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      if (element == null)
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        return value;
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      else {
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        int parsedValue;
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        if (int.TryParse(element.Value, 
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          System.Globalization.NumberStyles.HexNumber, 
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          System.Globalization.CultureInfo.InvariantCulture, out parsedValue))
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          return Color.FromArgb(parsedValue);
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        else
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          return value;
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      }
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    }
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    public static void Set(string name, float value) {
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      instance[name] = value.ToString(
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        System.Globalization.CultureInfo.InvariantCulture.NumberFormat); 
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    }
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    public static float Get(string name, float value) {
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      System.Configuration.KeyValueConfigurationElement element =
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        instance.config.AppSettings.Settings[name];
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      if (element == null)
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        return value;
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      else {
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        float parsedValue;
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        if (float.TryParse(element.Value,
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          System.Globalization.NumberStyles.Float,
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          System.Globalization.CultureInfo.InvariantCulture, out parsedValue))
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          return parsedValue;
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        else
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          return value;
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      }
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    }
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  }
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}