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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 TimedAnimation {
public partial class TimedAnimation : MonoMac.AppKit.NSView {
NSImageView photo1;
NSImageView photo2;
public TimedAnimation (IntPtr handle) : base(handle) {}
[Export("initWithCoder:")]
public TimedAnimation (NSCoder coder) : base(coder) {}
[Export("initWithFrame:")]
public TimedAnimation (RectangleF frame) : base(frame)
{
float xInset = frame.Width / 3;
float yInset = frame.Height / 3;
RectangleF aniFrame = frame.Inset (xInset, yInset);
// photo1 starts and the left edge
PointF origin = frame.Location;
origin.X = 0.0f;
origin.Y = Bounds.GetMidY () - aniFrame.Height / 2;
aniFrame.Location = origin;
photo1 = new NSImageView (aniFrame);
photo1.ImageScaling = NSImageScale.AxesIndependently;
photo1.Image = NSImage.ImageNamed ("photo1.jpg");
AddSubview (photo1);
// photo2 starts in the center
origin.X = Bounds.GetMidX () - aniFrame.Width / 2;
aniFrame.Location = origin;
photo2 = new NSImageView (aniFrame);
photo2.ImageScaling = NSImageScale.AxesIndependently;
photo2.Image = NSImage.ImageNamed ("photo2.jpg");
AddSubview (photo2);
}
public override bool AcceptsFirstResponder ()
{
return true;
}
public override void KeyDown (NSEvent theEvent)
{
if ((NSKey)(theEvent.Characters [0]) == NSKey.RightArrow)
right ();
else if (theEvent.Characters [0] == 'r')
reset ();
else
base.KeyDown (theEvent);
}
CABasicAnimation basicAnimationNamed (string name, float duration)
{
CABasicAnimation animation = new CABasicAnimation ();
animation.Duration = duration;
animation.SetValueForKey ((NSString)name, (NSString)"name");
return animation;
}
void right ()
{
// photo1 is going to move to where photo2 is
PointF newOrigin = photo2.Frame.Location;
CABasicAnimation animation = basicAnimationNamed ("photo1",1.0f);
animation.AnimationStopped += HandleAnimationStopped;
photo1.Animations = NSDictionary.FromObjectAndKey (animation, (NSString)"frameOrigin");
((NSView)photo1.Animator).SetFrameOrigin (newOrigin);
}
void reset ()
{
// NOTE - fix the animations to allow null values
photo1.Animations = new NSDictionary ();
photo2.Animations = new NSDictionary ();
PointF newPhoto1Origin = new PointF (0, Frame.GetMidY () - photo1.Bounds.Height / 2);
PointF newPhoto2Origin = new PointF (Frame.GetMidX () - photo2.Bounds.Width / 2,
Frame.GetMidY () - photo1.Bounds.Height / 2);
((NSView)photo1.Animator).SetFrameOrigin (newPhoto1Origin);
((NSView)photo2.Animator).SetFrameOrigin (newPhoto2Origin);
}
void HandleAnimationStopped (object sender, CAAnimationStateEventArgs e)
{
//Console.WriteLine("stopped" + ((CAAnimation)sender).ValueForKey((NSString)"name"));
var animation = (CAAnimation)sender;
string animationValue = ((CAAnimation)sender).ValueForKey((NSString)"name").ToString();
if (e.Finished && animationValue == "photo1"){
CABasicAnimation photo2Animation = basicAnimationNamed ("photo2", (float)animation.Duration);
photo2.Animations = NSDictionary.FromObjectAndKey (photo2Animation, (NSString)"frameOrigin");
PointF newPhoto2Origin = new PointF(Frame.GetMaxX () - photo2.Frame.Size.Width, photo2.Frame.Location.Y);
((NSView)photo2.Animator).SetFrameOrigin(newPhoto2Origin);
}
}
}
}
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