/[NexusPowerControl]/trunk/NexusPowerControl/ThemeLoader.cs
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Contents of /trunk/NexusPowerControl/ThemeLoader.cs

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Revision 9 - (show annotations) (download)
Sat Oct 22 09:46:14 2011 UTC (8 years, 1 month ago) by william
File size: 6951 byte(s)
** now have theme images being read from xml file

1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.IO;
6 using System.Xml;
7
8 namespace NexusPowerControl
9 {
10
11
12
13 public interface IThemeLoader
14 {
15 bool LoadThemeOrDefault(string ThemeName);
16 //bool LoadCustomTheme(string ThemeName, string ThemeXml);
17 ThemeLoader.ThemeDefinition GetLoadedTheme();
18 }
19 public class ThemeLoader : IThemeLoader
20 {
21
22 private ThemeLoader.ThemeDefinition LoadedTheme;
23 public ThemeLoader()
24 {
25 this.LoadedTheme = new ThemeDefinition();
26 this.LoadThemeOrDefault(ThemeDefinition.DefaultTheme);
27 }
28 #region IThemeLoader Members
29 public bool LoadThemeOrDefault(string ThemeName)
30 {
31 this.LoadedTheme = new ThemeDefinition(ThemeName);
32 return LoadedTheme.ThemeLoaded;
33 }
34 public ThemeLoader.ThemeDefinition GetLoadedTheme()
35 {
36 return (this.LoadedTheme == null) ? new ThemeDefinition() : this.LoadedTheme;
37 }
38 #endregion
39
40 #region sub-classes
41 public class ThemeElements
42 {
43 public const string main = "main";
44 public const string shutdown = "shutdown";
45 public const string restart = "restart";
46 public const string logoff = "logoff";
47 public const string lockscreen = "lockscreen";
48 public const string sleep = "sleep";
49 public const string close = "close";
50 }
51 public interface IThemeDefinition
52 {
53 bool ThemeLoaded { get; set; }
54 string MainImage { get; set; }
55 string ShutdownImage { get; set; }
56 string RestartImage { get; set; }
57 string LogoffImage { get; set; }
58 string LockScreenImage { get; set; }
59 string SleepImage { get; set; }
60 string CloseImage { get; set; }
61 }
62 public class ThemeDefinition : IThemeDefinition
63 {
64 private const string MissingImage = "missing.png";
65 private const string ThemeDirectory = "theme";
66 private const string ThemeFile = "theme.xml";
67
68 public const string DefaultTheme = "AeroLowRes";
69 public ThemeDefinition() : this(ThemeDefinition.DefaultTheme) { }
70 public ThemeDefinition(string ThemeXml) { this.init(); this.LoadTheme(ThemeXml); }
71
72 private void init()
73 {
74 this.ThemeLoaded = false;
75 this.MainImage = "";
76 this.ShutdownImage = "";
77 this.RestartImage = "";
78 this.LogoffImage = "";
79 this.LockScreenImage = "";
80 this.SleepImage = "";
81 this.CloseImage = "";
82 }
83
84 private void LoadTheme(string theme) { if (theme.ToLower().Contains(".xml")) { this.LoadCustomTheme(theme); } else { this.LoadStandardTheme(theme); } }
85
86 private void LoadStandardTheme(string theme)
87 {
88 // load theme in format: theme/<themname>/theme.xml : will throw file not found excetion (use default)
89 string xml_file = string.Format(@"{0}\{1}\{2}", ThemeDirectory, theme, ThemeFile);
90 this.LoadCustomTheme(xml_file);
91 }
92 private void LoadCustomTheme(string theme)
93 {
94 // load theme in format: <theme xml file>: will throw file not found excetion (use default)
95 try { if (!File.Exists(theme)) { throw new FileNotFoundException(theme); } else { try { this.ReadThemeXml(theme); } catch { this.ThemeLoaded = false; return; } } this.ThemeLoaded = true; }
96 catch (FileNotFoundException) { this.ThemeLoaded = false; }
97 catch (Exception) { this.ThemeLoaded = false; }
98 }
99
100 private void ReadThemeXml(string theme_xml)
101 {
102 FileStream fs = new FileStream(theme_xml, FileMode.Open, FileAccess.Read);
103 XmlReader r = XmlReader.Create(fs);
104 while (r.Read())
105 {
106 if (r.NodeType == XmlNodeType.Element)
107 {
108 if (r.Name.ToLower() == "theme") { r.Read(); }
109
110 if (r.HasAttributes)
111 {
112 switch (r.Name.ToLower())
113 {
114 case ThemeElements.close: this.CloseImage = BuildThemeImageURI(theme_xml,r.GetAttribute("value")); break;
115 case ThemeElements.lockscreen: this.LockScreenImage =BuildThemeImageURI(theme_xml,r.GetAttribute("value")); break;
116 case ThemeElements.logoff: this.LogoffImage =BuildThemeImageURI(theme_xml, r.GetAttribute("value")); break;
117 case ThemeElements.main: this.MainImage =BuildThemeImageURI(theme_xml, r.GetAttribute("value")); break;
118 case ThemeElements.restart: this.RestartImage =BuildThemeImageURI(theme_xml, r.GetAttribute("value")); break;
119 case ThemeElements.shutdown: this.ShutdownImage =BuildThemeImageURI(theme_xml, r.GetAttribute("value")); break;
120 case ThemeElements.sleep: this.SleepImage = BuildThemeImageURI(theme_xml, r.GetAttribute("value")); break;
121 default: BuildThemeImageURI(ThemeDirectory,MissingImage); break;
122 }
123 }
124 }
125 }
126 }
127
128 private string BuildThemeImageURI(string theme_xml, string image)
129 {
130 FileInfo fs = new FileInfo(theme_xml);
131 string path = fs.Directory.FullName;
132 string fullpath = string.Format(@"{0}\{1}", path, image);
133 fs = new FileInfo(fullpath);
134 if (!fs.Exists)
135 {
136 fs = new FileInfo(ThemeDirectory);
137 fullpath = string.Format(@"{0}\{1}\{2}", fs.DirectoryName, ThemeDirectory, MissingImage);
138 }
139 return fullpath;
140 }
141
142 #region IThemeDefinition Members
143 public bool ThemeLoaded { get; set; }
144 public string MainImage { get; set; }
145 public string ShutdownImage { get; set; }
146 public string RestartImage { get; set; }
147 public string LogoffImage { get; set; }
148 public string LockScreenImage { get; set; }
149 public string SleepImage { get; set; }
150 public string CloseImage { get; set; }
151 #endregion
152 }
153 #endregion
154 }
155 }

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