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annotate MetroWpf/MetroWpf.Xaml/Transitions/TranslateTransition.cs @ 65:5d0c5cc83a7a

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Click event handler added
author Steven Hollidge <stevenhollidge@hotmail.com>
date Sun, 22 Apr 2012 14:21:33 +0100
parents a8b50a087544
children
rev   line source
24
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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;
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4 using System.Windows.Media.Animation;
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5
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6 namespace MetroWpf.Xaml.Transitions
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7 {
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8 // Applies a Translation to the content. You can specify the starting point of the new
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9 // content or the ending point of the old content using relative coordinates.
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10 // Set start point to (-1,0) to have the content slide from the left
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11 public class TranslateTransition : Transition
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12 {
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13 static TranslateTransition()
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14 {
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15 ClipToBoundsProperty.OverrideMetadata(typeof(TranslateTransition), new FrameworkPropertyMetadata(true));
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16 }
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17
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18 public Duration Duration
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19 {
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20 get { return (Duration)GetValue(DurationProperty); }
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21 set { SetValue(DurationProperty, value); }
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22 }
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23
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24 public static readonly DependencyProperty DurationProperty =
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25 DependencyProperty.Register("Duration", typeof(Duration), typeof(TranslateTransition), new UIPropertyMetadata(Duration.Automatic));
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26
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27 public Point StartPoint
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28 {
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29 get { return (Point)GetValue(StartPointProperty); }
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30 set { SetValue(StartPointProperty, value); }
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31 }
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32
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33 public static readonly DependencyProperty StartPointProperty =
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34 DependencyProperty.Register("StartPoint", typeof(Point), typeof(TranslateTransition), new UIPropertyMetadata(new Point()));
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35
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36 public Point EndPoint
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37 {
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38 get { return (Point)GetValue(EndPointProperty); }
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39 set { SetValue(EndPointProperty, value); }
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40 }
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41
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42 public static readonly DependencyProperty EndPointProperty =
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43 DependencyProperty.Register("EndPoint", typeof(Point), typeof(TranslateTransition), new UIPropertyMetadata(new Point()));
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44
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45 protected internal override void BeginTransition(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
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46 {
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47 TranslateTransform tt = new TranslateTransform(StartPoint.X * transitionElement.ActualWidth, StartPoint.Y * transitionElement.ActualHeight);
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48
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49 if (IsNewContentTopmost)
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50 newContent.RenderTransform = tt;
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51 else
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52 oldContent.RenderTransform = tt;
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53
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54 DoubleAnimation da = new DoubleAnimation(EndPoint.X * transitionElement.ActualWidth, Duration);
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55 tt.BeginAnimation(TranslateTransform.XProperty, da);
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56
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57 da.To = EndPoint.Y * transitionElement.ActualHeight;
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58 da.Completed += delegate
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59 {
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60 EndTransition(transitionElement, oldContent, newContent);
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61 };
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62 tt.BeginAnimation(TranslateTransform.YProperty, da);
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63 }
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64
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65 protected override void OnTransitionEnded(TransitionPresenter transitionElement, ContentPresenter oldContent, ContentPresenter newContent)
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66 {
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67 newContent.ClearValue(ContentPresenter.RenderTransformProperty);
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68 oldContent.ClearValue(ContentPresenter.RenderTransformProperty);
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69 }
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70 }
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71 }