Mercurial > silverbladetech
annotate MetroWpf/MetroWpf.Xaml/Transitions/StoryboardTransition.cs @ 96:188f8b366e87
Unit test project correctly setup as normal class library DLL.
author | stevenhollidge <stevenhollidge@hotmail.com> |
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date | Sat, 05 May 2012 13:29:56 +0100 |
parents | a8b50a087544 |
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rev | line source |
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1 using System.Windows; |
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2 using System.Windows.Controls; |
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3 using System.Windows.Media.Animation; |
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4 |
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5 namespace MetroWpf.Xaml.Transitions |
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6 { |
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7 // Transition with storyboards for the old and new content presenters |
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8 [StyleTypedProperty(Property = "OldContentStyle", StyleTargetType = typeof(ContentPresenter))] |
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9 [StyleTypedProperty(Property = "NewContentStyle", StyleTargetType = typeof(ContentPresenter))] |
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10 public class StoryboardTransition : Transition |
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11 { |
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12 public Style OldContentStyle |
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13 { |
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14 get { return (Style)GetValue(OldContentStyleProperty); } |
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15 set { SetValue(OldContentStyleProperty, value); } |
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16 } |
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17 |
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18 public static readonly DependencyProperty OldContentStyleProperty = |
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19 DependencyProperty.Register("OldContentStyle", |
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20 typeof(Style), |
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21 typeof(StoryboardTransition), |
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22 new UIPropertyMetadata(null)); |
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23 |
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24 public Storyboard OldContentStoryboard |
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25 { |
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26 get { return (Storyboard)GetValue(OldContentStoryboardProperty); } |
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27 set { SetValue(OldContentStoryboardProperty, value); } |
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28 } |
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29 |
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30 public static readonly DependencyProperty OldContentStoryboardProperty = |
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31 DependencyProperty.Register("OldContentStoryboard", |
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32 typeof(Storyboard), |
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33 typeof(StoryboardTransition), |
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34 new UIPropertyMetadata(null)); |
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35 |
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36 public Style NewContentStyle |
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37 { |
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38 get { return (Style)GetValue(NewContentStyleProperty); } |
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39 set { SetValue(NewContentStyleProperty, value); } |
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40 } |
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41 |
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42 public static readonly DependencyProperty NewContentStyleProperty = |
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43 DependencyProperty.Register("NewContentStyle", |
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44 typeof(Style), |
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45 typeof(StoryboardTransition), |
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46 new UIPropertyMetadata(null)); |
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47 |
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48 public Storyboard NewContentStoryboard |
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49 { |
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50 get { return (Storyboard)GetValue(NewContentStoryboardProperty); } |
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51 set { SetValue(NewContentStoryboardProperty, value); } |
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52 } |
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53 |
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54 public static readonly DependencyProperty NewContentStoryboardProperty = |
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55 DependencyProperty.Register("NewContentStoryboard", |
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56 typeof(Storyboard), |
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57 typeof(StoryboardTransition), |
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58 new UIPropertyMetadata(null)); |
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59 |
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60 protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent) |
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61 { |
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62 Storyboard oldStoryboard = OldContentStoryboard; |
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63 Storyboard newStoryboard = NewContentStoryboard; |
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64 |
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65 if (oldStoryboard != null || newStoryboard != null) |
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66 { |
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67 oldContent.Style = OldContentStyle; |
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68 newContent.Style = NewContentStyle; |
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69 |
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70 // Flag to determine when both storyboards are done |
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71 bool done = oldStoryboard == null || newStoryboard == null; |
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72 |
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73 if (oldStoryboard != null) |
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74 { |
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75 oldStoryboard = oldStoryboard.Clone(); |
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76 oldContent.SetValue(OldContentStoryboardProperty, oldStoryboard); |
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77 oldStoryboard.Completed += delegate |
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78 { |
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79 if (done) |
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80 EndTransition(transitionElement, oldContent, newContent); |
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81 done = true; |
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82 }; |
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83 oldStoryboard.Begin(oldContent, true); |
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84 } |
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85 |
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86 if (newStoryboard != null) |
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87 { |
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88 newStoryboard = newStoryboard.Clone(); |
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89 newContent.SetValue(NewContentStoryboardProperty, newStoryboard); |
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90 newStoryboard.Completed += delegate |
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91 { |
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92 if (done) |
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93 EndTransition(transitionElement, oldContent, newContent); |
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94 done = true; |
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95 }; |
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96 newStoryboard.Begin(newContent, true); |
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97 } |
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98 } |
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99 else |
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100 { |
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101 EndTransition(transitionElement, oldContent, newContent); |
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102 } |
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103 } |
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104 |
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105 protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent) |
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106 { |
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107 Storyboard oldStoryboard = (Storyboard)oldContent.GetValue(OldContentStoryboardProperty); |
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108 if (oldStoryboard != null) |
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109 oldStoryboard.Stop(oldContent); |
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110 oldContent.ClearValue(ContentPresenter.StyleProperty); |
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111 |
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112 Storyboard newStoryboard = (Storyboard)newContent.GetValue(NewContentStoryboardProperty); |
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113 if (newStoryboard != null) |
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114 newStoryboard.Stop(newContent); |
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115 newContent.ClearValue(ContentPresenter.StyleProperty); |
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116 } |
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117 } |
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118 } |