protected override void OnManipulationDelta(ManipulationDeltaEventArgs args)
{
try
{
UIElement element = args.Source as UIElement;
MatrixTransform xform = element.RenderTransform as MatrixTransform;
Matrix matrix = xform.Matrix;
ManipulationDelta delta = args.DeltaManipulation;
Point center = args.ManipulationOrigin;
/*
* matrix.Translate(-center.X, -center.Y);
* matrix.Scale(delta.Scale.X, delta.Scale.Y);
* matrix.Rotate(delta.Rotation);
* matrix.Translate(center.X, center.Y);
* matrix.Translate(delta.Translation.X, delta.Translation.Y);
* xform.Matrix = matrix;
*/
Matrix to = matrix;
to.Translate(-center.X, -center.Y);
to.Scale(delta.Scale.X, delta.Scale.Y);
to.Rotate(delta.Rotation);
to.Translate(center.X, center.Y);
to.Translate(delta.Translation.X, delta.Translation.Y);
MatrixAnimation b = new MatrixAnimation()
{
From = matrix,
To = to,
Duration = TimeSpan.FromMilliseconds(0),
FillBehavior = FillBehavior.HoldEnd
};
(element.RenderTransform as MatrixTransform).BeginAnimation(MatrixTransform.MatrixProperty, b);
//tbTranslate.Text = string.Format("Translation: {0}, {1}", delta.Translation.X, delta.Translation.Y);
//tbTranslate.Text += string.Format("\r\nTotal Translation: {0}, {1}", args.CumulativeManipulation.Translation.X, args.CumulativeManipulation.Translation.Y);
args.Handled = true;
base.OnManipulationDelta(args);
}
catch
{
//MessageBox.Show("OnManipulationDelta");
};
}
protected override void OnManipulationCompleted(ManipulationCompletedEventArgs e)
{
try
{
// tbCompleted.Text = string.Format("{0}", e.FinalVelocities.LinearVelocity);
// tbCompleted.Text += string.Format("\r\n{0}", e.TotalManipulation.Translation);
UIElement el = e.Source as UIElement;
//el.Effect = new BlurEffect() { Radius = 10.0 };
MatrixTransform xform = el.RenderTransform as MatrixTransform;
Matrix matrix = xform.Matrix;
Matrix from = matrix;
Matrix to = matrix;
to.Translate(
e.TotalManipulation.Translation.X * Math.Abs(e.FinalVelocities.LinearVelocity.X),
e.TotalManipulation.Translation.Y * Math.Abs(e.FinalVelocities.LinearVelocity.Y));
if (Math.Abs(e.FinalVelocities.LinearVelocity.X) > 0.5 || Math.Abs(e.FinalVelocities.LinearVelocity.Y) > 0.5)
{
MatrixAnimation b = new MatrixAnimation()
{
From = from,
To = to,
Duration = TimeSpan.FromMilliseconds(500),
FillBehavior = FillBehavior.HoldEnd
};
b.Completed += new EventHandler(b_Completed);
(el.RenderTransform as MatrixTransform).BeginAnimation(MatrixTransform.MatrixProperty, b);
}
base.OnManipulationCompleted(e);
//label1.Content = "to : " + to.OffsetY.ToString() + "\nel : " + xform.Matrix.OffsetY.ToString() + "\ne.total : " + e.TotalManipulation.Translation.Y.ToString() + "\ne.final : " + e.FinalVelocities.LinearVelocity.Y.ToString();
currImgDestination = to;
currImgVelocity = e.FinalVelocities.LinearVelocity;
currManipulImage = el as Image;
}
catch
{
//MessageBox.Show("OnManipulationCompleted");
};
}
