path: root/CocoaSharp/UIKit/UIPinchGestureRecognizer.cs

using ObjectiveC;
using System;
using SharpSwift.Attributes;
using System.Collections.Generic;
using Foundation;
using CoreGraphics;

namespace UIKit
{
    /// <summary>
    /// UIPinchGestureRecognizer is a concrete subclass of UIGestureRecognizer that looks for pinching gestures involving two touches. When the user moves the two fingers toward each other, the conventional meaning is zoom-out; when the user moves the two fingers away from each other, the conventional meaning is zoom-in.
    /// </summary>
    /// <see cref="https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UIPinchGestureRecognizer_Class/index.html#//apple_ref/occ/cl/UIPinchGestureRecognizer"/>
    [iOSVersion(3.2)]
    public class UIPinchGestureRecognizer : UIGestureRecognizer//, AnyObject, NSObjectProtocol
    {
        public UIPinchGestureRecognizer() : base(null, null) { }

        /// <summary>
        /// The scale factor relative to the points of the two touches in screen coordinates.
        /// </summary>
        [iOSVersion(3.2)]
        [Export("scale")]
        public CGFloat Scale { get; set; }
        
        /// <summary>
        /// The velocity of the pinch in scale factor per second. (read-only)
        /// </summary>
        [iOSVersion(3.2)]
        [Export("velocity")]
        public CGFloat Velocity { get; private set; }
    }
}