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comparison Chronosv2/source/DragAndDrop/ListBoxDragDropDataProvider.cs @ 10:443821e55f06

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Initial cleaned up add from Codeplex files
author stevenh7776 stevenhollidge@hotmail.com
date Tue, 21 Feb 2012 17:25:44 +0700
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9:904a9faadf8b 10:443821e55f06
1 using System;
2 using System.Diagnostics;
3 using System.Windows;
4 using System.Windows.Controls;
5 using System.Windows.Controls.Primitives;
6 using System.Windows.Input;
7 using System.Xml;
8
9 namespace Chronos.Presentation.DragAndDrop
10 {
11 public sealed class ListBoxDragDropDataProvider : IDataDropObjectProvider
12 {
13 #region · Fields ·
14
15 private ListBox list;
16
17 #endregion
18
19 #region · Properties ·
20
21 public DragDropProviderActions SupportedActions
22 {
23 get
24 {
25 return DragDropProviderActions.Data |
26 DragDropProviderActions.Visual |
27 DragDropProviderActions.Unparent |
28 DragDropProviderActions.MultiFormatData;
29 }
30 }
31
32 #endregion
33
34 #region · Constructors ·
35
36 public ListBoxDragDropDataProvider(ListBox list)
37 {
38 this.list = list;
39 }
40
41 #endregion
42
43 #region · IDataDropObjectProvider Members ·
44
45 public void AppendData (ref IDataObject data, MouseEventArgs e)
46 {
47 if (!(this.list.InputHitTest(e.GetPosition(e.OriginalSource as UIElement)) is ListBox)
48 && !(this.list.InputHitTest(e.GetPosition(e.OriginalSource as UIElement)) is ScrollViewer)
49 && !(e.OriginalSource is Thumb))
50 {
51 object o = this.list.SelectedItem;
52
53 // This is cheating .. just for an example's sake..
54 Debug.Assert(!data.GetDataPresent(DataFormats.Text));
55
56 if (o.GetType() == typeof(XmlElement))
57 {
58 data.SetData(DataFormats.Text, ((XmlElement)o).OuterXml);
59 }
60 else
61 {
62 data.SetData(DataFormats.Text, o.ToString());
63 }
64
65 Debug.Assert(!data.GetDataPresent(o.GetType().ToString()));
66
67 data.SetData(o.GetType().ToString(), o);
68 }
69 else
70 {
71 data = null;
72 }
73 }
74
75 public object GetData()
76 {
77 return this.list.SelectedItem;
78 }
79
80 public UIElement GetVisual(MouseEventArgs e)
81 {
82 return this.list.ItemContainerGenerator.ContainerFromItem(this.list.SelectedItem) as UIElement;
83 }
84
85 public void GiveFeedback(System.Windows.GiveFeedbackEventArgs args)
86 {
87 throw new NotImplementedException("Forgot to check the Supported actions??");
88 }
89
90 public void ContinueDrag(System.Windows.QueryContinueDragEventArgs args)
91 {
92 throw new NotImplementedException("Forgot to check the Supported actions??");
93 }
94
95 public bool UnParent()
96 {
97 // We are passing data, nothing to unparent
98 throw new NotImplementedException("We are passing data, nothing to unparent... what up ");
99 }
100
101 #endregion
102 }
103 }