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Diffstat (limited to 'Xamarin.Forms.Core/PinchGestureRecognizer.cs')
-rw-r--r--Xamarin.Forms.Core/PinchGestureRecognizer.cs51
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;
+ }
+} \ No newline at end of file