Steven Kirk
11 years ago
10 changed files with 167 additions and 34 deletions
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// -----------------------------------------------------------------------
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// <copyright file="PageSlide.cs" company="Steven Kirk">
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// Copyright 2015 MIT Licence. See licence.md for more information.
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// </copyright>
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// -----------------------------------------------------------------------
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namespace Perspex.Animation |
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{ |
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using Perspex.Media; |
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using Perspex.VisualTree; |
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using System; |
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using System.Collections.Generic; |
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using System.Reactive.Threading.Tasks; |
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using System.Threading.Tasks; |
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public class PageSlide : IPageTransition |
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{ |
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public PageSlide(TimeSpan duration) |
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{ |
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this.Duration = duration; |
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} |
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public TimeSpan Duration { get; } |
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public async Task Start(Visual from, Visual to, bool forward) |
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{ |
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var tasks = new List<Task>(); |
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var parent = GetVisualParent(from, to); |
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var distance = parent.Bounds.Width; |
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if (from != null) |
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{ |
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var transform = new TranslateTransform(); |
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from.RenderTransform = transform; |
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tasks.Add(Animate.Property( |
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transform, |
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TranslateTransform.XProperty, |
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0, |
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forward ? -distance : distance, |
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LinearEasing.For<double>(), |
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this.Duration).ToTask()); |
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} |
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if (to != null) |
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{ |
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var transform = new TranslateTransform(); |
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to.RenderTransform = transform; |
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tasks.Add(Animate.Property( |
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transform, |
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TranslateTransform.XProperty, |
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forward ? distance : -distance, |
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0, |
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LinearEasing.For<double>(), |
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this.Duration).ToTask()); |
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} |
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await Task.WhenAll(tasks.ToArray()); |
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if (from != null) |
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{ |
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from.IsVisible = false; |
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} |
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} |
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private static IVisual GetVisualParent(IVisual from, IVisual to) |
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{ |
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var p1 = (from ?? to).VisualParent; |
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var p2 = (to ?? from).VisualParent; |
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if (p1 != null && p2 != null && p1 != p2) |
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{ |
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throw new ArgumentException("Controls for PageSlide must have same parent."); |
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} |
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return p1; |
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} |
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} |
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} |
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@ -0,0 +1,49 @@ |
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// -----------------------------------------------------------------------
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// <copyright file="MatrixTransform.cs" company="Steven Kirk">
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// Copyright 2013 MIT Licence. See licence.md for more information.
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// </copyright>
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// -----------------------------------------------------------------------
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namespace Perspex.Media |
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{ |
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using System; |
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public class TranslateTransform : Transform |
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{ |
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public static readonly PerspexProperty<double> XProperty = |
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PerspexProperty.Register<TranslateTransform, double>("X"); |
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public static readonly PerspexProperty<double> YProperty = |
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PerspexProperty.Register<TranslateTransform, double>("Y"); |
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public TranslateTransform() |
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{ |
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this.GetObservable(XProperty).Subscribe(_ => this.RaiseChanged()); |
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this.GetObservable(YProperty).Subscribe(_ => this.RaiseChanged()); |
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} |
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public TranslateTransform(double x, double y) |
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: this() |
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{ |
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this.X = x; |
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this.Y = y; |
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} |
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public double X |
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{ |
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get { return this.GetValue(XProperty); } |
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set { this.SetValue(XProperty, value); } |
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} |
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public double Y |
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{ |
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get { return this.GetValue(YProperty); } |
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set { this.SetValue(YProperty, value); } |
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} |
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public override Matrix Value |
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{ |
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get { return Matrix.Translation(this.X, this.Y); } |
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} |
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} |
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} |
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