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author | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 13:02:25 -0700 |
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committer | Jason Smith <jason.smith@xamarin.com> | 2016-03-22 16:13:41 -0700 |
commit | 17fdde66d94155fc62a034fa6658995bef6fd6e5 (patch) | |
tree | b5e5073a2a7b15cdbe826faa5c763e270a505729 /Xamarin.Forms.Core/PinchGestureRecognizer.cs | |
download | xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.gz xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.tar.bz2 xamarin-forms-17fdde66d94155fc62a034fa6658995bef6fd6e5.zip |
Initial import
Diffstat (limited to 'Xamarin.Forms.Core/PinchGestureRecognizer.cs')
-rw-r--r-- | Xamarin.Forms.Core/PinchGestureRecognizer.cs | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core/PinchGestureRecognizer.cs b/Xamarin.Forms.Core/PinchGestureRecognizer.cs new file mode 100644 index 00000000..aef07fbb --- /dev/null +++ b/Xamarin.Forms.Core/PinchGestureRecognizer.cs @@ -0,0 +1,51 @@ +using System; + +namespace Xamarin.Forms +{ + public sealed class PinchGestureRecognizer : GestureRecognizer, IPinchGestureController + { + bool IPinchGestureController.IsPinching { get; set; } + + void IPinchGestureController.SendPinch(Element sender, double delta, Point currentScalePoint) + { + EventHandler<PinchGestureUpdatedEventArgs> handler = PinchUpdated; + if (handler != null) + { + handler(sender, new PinchGestureUpdatedEventArgs(GestureStatus.Running, delta, currentScalePoint)); + } + ((IPinchGestureController)this).IsPinching = true; + } + + void IPinchGestureController.SendPinchCanceled(Element sender) + { + EventHandler<PinchGestureUpdatedEventArgs> handler = PinchUpdated; + if (handler != null) + { + handler(sender, new PinchGestureUpdatedEventArgs(GestureStatus.Canceled)); + } + ((IPinchGestureController)this).IsPinching = false; + } + + void IPinchGestureController.SendPinchEnded(Element sender) + { + EventHandler<PinchGestureUpdatedEventArgs> handler = PinchUpdated; + if (handler != null) + { + handler(sender, new PinchGestureUpdatedEventArgs(GestureStatus.Completed)); + } + ((IPinchGestureController)this).IsPinching = false; + } + + void IPinchGestureController.SendPinchStarted(Element sender, Point initialScalePoint) + { + EventHandler<PinchGestureUpdatedEventArgs> handler = PinchUpdated; + if (handler != null) + { + handler(sender, new PinchGestureUpdatedEventArgs(GestureStatus.Started, 1, initialScalePoint)); + } + ((IPinchGestureController)this).IsPinching = true; + } + + public event EventHandler<PinchGestureUpdatedEventArgs> PinchUpdated; + } +}
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