Mercurial > silverbladetech

annotate Chronosv2/source/Extensions/Windows/AdornerExtensions.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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10
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1 using System.Windows;
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2 using System.Windows.Documents;
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3 using System.Windows.Controls;
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4
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5 namespace Chronos.Presentation.Controls.Adorner
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6 {
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7 public static class AdornerExtensions
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8 {
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9 #region · Extension Methods ·
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10
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11 public static void TryRemoveAdorners<T>(this UIElement elem)
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12 where T : System.Windows.Documents.Adorner
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13 {
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14 AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(elem);
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16 if (adornerLayer != null)
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17 {
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18 adornerLayer.RemoveAdorners<T>(elem);
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19 }
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20 }
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21
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22 public static void RemoveAdorners<T>(this AdornerLayer adr, UIElement elem)
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23 where T : System.Windows.Documents.Adorner
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24 {
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25 System.Windows.Documents.Adorner[] adorners = adr.GetAdorners(elem);
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26
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27 if (adorners == null)
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28 {
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29 return;
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30 }
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31
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32 for (int i = adorners.Length - 1; i >= 0; i--)
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33 {
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34 if (adorners[i] is T)
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35 {
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36 adr.Remove(adorners[i]);
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37 }
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38 }
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39 }
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40
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41 public static void TryAddAdorner<T>(this UIElement elem, System.Windows.Documents.Adorner adorner)
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42 where T : System.Windows.Documents.Adorner
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43 {
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44 AdornerLayer adornerLayer = AdornerLayer.GetAdornerLayer(elem);
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45
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46 if (adornerLayer != null && !adornerLayer.ContainsAdorner<T>(elem))
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47 {
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48 adornerLayer.Add(adorner);
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49 Panel.SetZIndex(adornerLayer, Panel.GetZIndex(elem));
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50 }
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51 }
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52
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53 public static bool ContainsAdorner<T>(this AdornerLayer adr, UIElement elem)
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54 where T : System.Windows.Documents.Adorner
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55 {
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56 System.Windows.Documents.Adorner[] adorners = adr.GetAdorners(elem);
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57
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58 if (adorners == null)
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59 {
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60 return false;
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61 }
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62
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63 for (int i = adorners.Length - 1; i >= 0; i--)
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64 {
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65 if (adorners[i] is T)
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66 {
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67 return true;
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68 }
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69 }
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70
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71 return false;
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72 }
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73
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74 public static void RemoveAllAdorners(this AdornerLayer adr, UIElement elem)
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75 {
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76 System.Windows.Documents.Adorner[] adorners = adr.GetAdorners(elem);
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77
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78 if (adorners == null)
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79 {
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80 return;
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81 }
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82
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83 foreach (var toRemove in adorners)
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84 {
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85 adr.Remove(toRemove);
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86 }
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87 }
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88
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89 #endregion
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90 }
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91 }