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annotate Chronosv2/source/DragAndDrop/TreeviewDragDropDataProvider.cs @ 19:09d18d6e5f40

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airport work
author stevenh7776 stevenhollidge@hotmail.com
date Thu, 15 Mar 2012 06:59:15 +0000
parents 443821e55f06
children
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10
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1 using System;
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2 using System.Windows;
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3 using System.Windows.Controls;
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4 using System.Windows.Controls.Primitives;
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5 using System.Windows.Input;
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6 using System.Xml;
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7 using Chronos.Extensions.Windows;
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8
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9 namespace Chronos.Presentation.DragAndDrop
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10 {
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11 public sealed class TreeViewDragDropDataProvider : IDataDropObjectProvider
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12 {
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13 #region · Fields ·
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14
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15 private TreeView treeview;
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16
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17 #endregion
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18
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19 #region · Properties ·
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20
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21 public DragDropProviderActions SupportedActions
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22 {
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23 get
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24 {
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25 return DragDropProviderActions.Data |
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26 DragDropProviderActions.MultiFormatData;
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27 }
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28 }
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29
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30 #endregion
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31
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32 #region · Constructors ·
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33
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34 public TreeViewDragDropDataProvider(TreeView treeview)
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35 {
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36 this.treeview = treeview;
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37 }
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38
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39 #endregion
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40
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41 #region · IDataDropObjectProvider Members ·
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42
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43 public void AppendData(ref IDataObject data, MouseEventArgs e)
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44 {
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45 if (!(this.treeview.InputHitTest(e.GetPosition(e.OriginalSource as UIElement)) is TreeView)
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46 && !(this.treeview.InputHitTest(e.GetPosition(e.OriginalSource as UIElement)) is ScrollViewer)
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47 && !(e.OriginalSource is Thumb))
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48 {
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49 TreeViewItem selectedUIelement = this.GetVisual(e).GetParent<TreeViewItem>();
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50
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51 if (selectedUIelement != null && selectedUIelement.Items.Count == 0)
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52 {
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53 object selectedItem = this.treeview.SelectedItem;
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54
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55 if (selectedItem != null)
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56 {
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57 if (selectedItem.GetType() == typeof(XmlElement))
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58 {
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59 data.SetData(DataFormats.Text, ((XmlElement)selectedItem).OuterXml);
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60 }
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61 else
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62 {
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63 data.SetData(DataFormats.Text, selectedItem.ToString());
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64 }
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65
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66 data.SetData(selectedItem.GetType().ToString(), selectedItem);
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67 }
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68 else
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69 {
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70 data = null;
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71 }
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72 }
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73 else
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74 {
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75 data = null;
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76 }
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77 }
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78 else
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79 {
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80 data = null;
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81 }
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82 }
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83
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84 public object GetData()
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85 {
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86 return this.treeview.SelectedItem;
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87 }
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88
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89 public UIElement GetVisual(MouseEventArgs e)
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90 {
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91 // return this.treeview.ItemContainerGenerator.ContainerFromItem(this.treeview.SelectedItem) as UIElement;
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92 return e.OriginalSource as UIElement;
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93 }
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94
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95 public void GiveFeedback(System.Windows.GiveFeedbackEventArgs args)
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96 {
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97 throw new NotImplementedException("Forgot to check the Supported actions??");
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98 }
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99
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100 public void ContinueDrag(System.Windows.QueryContinueDragEventArgs args)
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101 {
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102 throw new NotImplementedException("Forgot to check the Supported actions??");
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103 }
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104
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105 public bool UnParent()
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106 {
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107 // We are passing data, nothing to unparent
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108 throw new NotImplementedException("We are passing data, nothing to unparent... what up ");
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109 }
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110
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111 #endregion
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112 }
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113 }