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using System;
using System.Collections.Generic;
using System.Linq;
using System.Drawing;
using MonoMac.Foundation;
using MonoMac.AppKit;
using MonoMac.CoreAnimation;
using MonoMac.CoreGraphics;
namespace GroupAnimation
{
public partial class GroupAnimationView : MonoMac.AppKit.NSView
{
NSImageView mover;
[Export("initWithFrame:")]
public GroupAnimationView(RectangleF frame) : base(frame)
{
float xInset = 3 * (frame.Width / 8);
float yInset = 3 * (frame.Height / 8);
RectangleF moverFrame = frame.Inset (xInset, yInset);
PointF location = moverFrame.Location;
location.X = this.Bounds.GetMidX () - moverFrame.Width / 2;
location.Y = this.Bounds.GetMidY () - moverFrame.Height / 2;
moverFrame.Location = location;
mover = new NSImageView (moverFrame);
mover.ImageScaling = NSImageScale.AxesIndependently;
mover.Image = NSImage.ImageNamed ("photo.jpg");
NSDictionary animations = NSDictionary.FromObjectsAndKeys (
new object[] {GroupAnimation(moverFrame)},
new object[] {"frameRotation"});
mover.Animations = animations;
AddSubview (mover);
}
public override bool AcceptsFirstResponder ()
{
return true;
}
public override void KeyDown (NSEvent theEvent)
{
((NSView)mover.Animator).FrameRotation = mover.FrameRotation;
}
private CAAnimationGroup GroupAnimation (RectangleF frame)
{
CAAnimationGroup animationGroup = CAAnimationGroup.CreateAnimation ();
animationGroup.Animations = new CAAnimation[] { frameAnimation (frame),
rotationAnimation () };
animationGroup.Duration = 1;
animationGroup.AutoReverses = true;
return animationGroup;
}
private CAAnimation frameAnimation (RectangleF aniFrame)
{
CAKeyFrameAnimation frameAni = new CAKeyFrameAnimation ();
frameAni.KeyPath = "frame";
RectangleF start = aniFrame;
RectangleF end = aniFrame.Inset (-start.Width * .5f, -start.Height * 0.5f);
frameAni.Values = new NSObject[] {
NSValue.FromRectangleF (start),
NSValue.FromRectangleF (end) };
return frameAni;
}
private CABasicAnimation rotationAnimation ()
{
CABasicAnimation rotation = new CABasicAnimation ();
rotation.KeyPath = "frameRotation";
rotation.From = NSNumber.FromFloat (0);
rotation.To = NSNumber.FromFloat (45);
return rotation;
}
}
}
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