/[xmltv_parser]/trunk/libxmltv/Core/DataSourceBindable.cs
ViewVC logotype

Contents of /trunk/libxmltv/Core/DataSourceBindable.cs

Parent Directory Parent Directory | Revision Log Revision Log


Revision 131 - (show annotations) (download)
Wed Mar 13 15:16:59 2013 UTC (6 years, 8 months ago) by william
File size: 11645 byte(s)
XMLTV Program(s):
* single column asending/descending support

1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using libxmltv.Interfaces;
6 using System.Collections;
7
8 namespace libxmltv.Core
9 {
10 public class ChannelList : List<IXMLTVChannel>, IDataSourceBindable//, IDataConverter<IChannelDefintionList>
11 {
12 private class ChannelDefintionList : List<IChannelDefintion>, IDataSourceSortable, IDataSourceFilterable, IChannelDefintionList
13 {
14 public ChannelDefintionList() { }
15 public ChannelDefintionList(List<IChannelDefintion> collection) { collection.ForEach(s => this.Add(s)); }
16 #region IDataSourceSortable members
17 public void Sort(ref object source, bool descending, params string[] args)
18 {
19 }
20 #endregion
21 #region IDataSourceFilterable members
22 public void Filter(ref object source, params string[] args)
23 {
24 }
25 #endregion
26 }
27 private class ChannelDefintion : IChannelDefintion
28 {
29 public ChannelDefintion()
30 {
31 ChannelId = string.Empty;
32 ChannelName = string.Empty;
33 }
34 public string ChannelId { get; internal set; }
35 public string ChannelName { get; internal set; }
36
37
38 }
39 //static private List<string> known_columns;
40 //static ChannelList()
41 //{
42 // known_columns = new List<string>();
43 // known_columns.Add("Id");
44 // known_columns.Add("Name");
45 //}
46 public ChannelList() { }
47
48 //public object ConvertObjectData(object source) { return this.ConvertData(source); }
49 //public IChannelDefintionList ConvertData(object source)
50 //{
51 // //object t = source;
52 // if (source.GetType() != typeof(ChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ChannelDefintionList).Name)); }
53 // //if (type != typeof(IChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IChannelDefintionList).Name)); }
54 // IChannelDefintionList t = (source as IChannelDefintionList);
55 // return t;
56 //}
57 /// <summary>
58 ///
59 /// </summary>
60 /// <param name="type"></param>
61 /// <returns></returns>
62 public object CreateBindableDataSource(out Type type)
63 {
64 type = typeof(IChannelDefintionList);
65 object bindable = new object();
66 ChannelDefintionList list = new ChannelDefintionList();
67
68 foreach (var t in this)
69 {
70 try
71 {
72 ChannelDefintion definition = new ChannelDefintion();
73 definition.ChannelId = t.Id;
74 definition.ChannelName = t.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
75 list.Add(definition);
76 }
77 catch (Exception ex) { throw ex; }
78 }
79 list = new ChannelDefintionList(list.OrderBy(s => s.ChannelName).ToList());
80 bindable = list;
81 return bindable;
82 }
83
84 }
85 public class ProgramList : List<IXMLTVProgram>, IDataSourceBindable//, IDataConverter<IProgramDefinitionList>
86 {
87 private class ProgramDefinitionList : List<IProgramDefinition>, IDataSourceSortable, IDataSourceFilterable, IProgramDefinitionList
88 {
89 public ProgramDefinitionList() { }
90 public ProgramDefinitionList(List<IProgramDefinition> collection) { collection.ForEach(s => this.Add(s)); }
91 #region IDataSourceSortable members
92 public void Sort(ref object source, bool descending, params string[] args)
93 {
94 IProgramDefinitionList list = null;
95 IOrderedEnumerable<IProgramDefinition> ordered = null;
96 try
97 {
98 list = (ProgramDefinitionList)source;
99 var col = args.First().ToString().ToLower();
100 switch (col)
101 {
102 case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
103 case "start": ordered = descending ? list.OrderByDescending(s => s.Start) : list.OrderBy(s => s.Start); break;
104 case "stop": ordered = descending ? list.OrderByDescending(s => s.Stop) : list.OrderBy(s => s.Stop); break;
105 case "description": ordered = descending ? list.OrderByDescending(s => s.Description) : list.OrderBy(s => s.Description); break;
106 case "title": ordered = descending ? list.OrderByDescending(s => s.Title) : list.OrderBy(s => s.Title); break;
107 case "subtitle": ordered = descending ? list.OrderByDescending(s => s.SubTitle) : list.OrderBy(s => s.SubTitle); break;
108 }
109 //bool first = true;
110 foreach (var arg in args.Skip(1))
111 {
112 col = arg.ToLower();
113 switch (col)
114 {
115 case "channelname": ordered = descending ? ordered.ThenByDescending(s => s.ChannelName) : ordered.ThenBy(s => s.ChannelName); break;
116 case "start": ordered = descending ? ordered.ThenByDescending(s => s.Start) : ordered.ThenBy(s => s.Start); break;
117 case "stop": ordered = descending ? ordered.ThenByDescending(s => s.Stop) : ordered.ThenBy(s => s.Stop); break;
118 case "description": ordered = descending ? ordered.ThenByDescending(s => s.Description) : ordered.ThenBy(s => s.Description); break;
119 case "title": ordered = descending ? ordered.ThenByDescending(s => s.Title) : ordered.ThenBy(s => s.Title); break;
120 case "subtitle": ordered = descending ? ordered.ThenByDescending(s => s.SubTitle) : ordered.ThenBy(s => s.SubTitle); break;
121 }
122 }
123 list = new ProgramDefinitionList(ordered.ToList());
124 }
125 catch (Exception ex) { throw ex; }
126 if (list != null) { source = list; }
127 }
128 #endregion
129 #region IDataSourceFilterable members
130 public void Filter(ref object source, params string[] args)
131 {
132 }
133 #endregion
134 }
135 private class ProgramDefintion : IProgramDefinition
136 {
137 public ProgramDefintion()
138 {
139 //ChannelId = string.Empty;
140 ChannelName = string.Empty;
141 Start = new DateTime();
142 Stop = new DateTime();
143 Description = string.Empty;
144 Title = string.Empty;
145 SubTitle = string.Empty;
146 }
147 //public string ChannelId { get; internal set; }
148 public string ChannelName { get; internal set; }
149 public DateTime Start { get; internal set; }
150 public DateTime Stop { get; internal set; }
151 public string Title { get; internal set; }
152 public string SubTitle { get; internal set; }
153 public string Description { get; internal set; }
154
155
156 }
157 public ProgramList() { }
158 //public object ConvertObjectData(object source) { return this.ConvertData(source); }
159 //public IProgramDefinitionList ConvertData(object source)
160 //{
161 // if (source.GetType() != typeof(ProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ProgramDefinitionList).Name)); }
162 // //if (type != typeof(IProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IProgramDefinitionList).Name)); }
163 // IProgramDefinitionList t = (source as IProgramDefinitionList);
164 // return t;
165 //}
166 /// <summary>
167 ///
168 /// </summary>
169 /// <param name="type"></param>
170 /// <returns></returns>
171 public object CreateBindableDataSource(out Type type)
172 {
173 type = typeof(IProgramDefinitionList);
174 object bindable = new object();
175 ProgramDefinitionList list = new ProgramDefinitionList();
176
177 foreach (var t in this)
178 {
179 try
180 {
181 ProgramDefintion definition = new ProgramDefintion();
182 string ChannelId = t.MetaData[XMLTVConstants.Programs.ProgramChannelId].ToString();
183 //definition.ChannelId = ChannelId;
184
185 var channels = XMLTV.GetChannels();
186 if (channels != null)
187 {
188 var channel = channels.Find(p => p.Id == ChannelId);
189 if (channel != null)
190 {
191 definition.ChannelName = channel.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
192 }
193 else
194 {
195 definition.ChannelName = string.Empty;
196 }
197 }
198 else
199 {
200 definition.ChannelName = string.Empty;
201 }
202 definition.Start = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStart];
203 definition.Stop = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStop];
204 definition.Description = t.MetaData[XMLTVConstants.Programs.ProgramDescription].ToString();
205 definition.Title = t.MetaData[XMLTVConstants.Programs.ProgramTitle].ToString();
206 definition.SubTitle = t.MetaData[XMLTVConstants.Programs.ProgramSubTitle].ToString();
207 list.Add(definition);
208 }
209 catch (Exception ex) { throw ex; }
210 }
211
212 list = new ProgramDefinitionList(list.OrderBy(s => s.Start).ToList());
213
214 bindable = list;
215 return bindable;
216 }
217 }
218 public class ExtraList : List<IExtraMetaData>, IDataSourceBindable
219 {
220
221 public ExtraList() { }
222 /// <summary>
223 ///
224 /// </summary>
225 /// <param name="type"></param>
226 /// <returns></returns>
227 public object CreateBindableDataSource(out Type type)
228 {
229 type = typeof(object);
230 throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
231 //object bindable = new object();
232 //return bindable;
233 }
234 //public object ConvertObjectData(object source) { return source; }
235 //public object Convert(object source)
236 //{
237 // throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
238 //}
239 }
240 }

  ViewVC Help
Powered by ViewVC 1.1.22