private void dragX_Changed(DragListener drag)
{
Point currentPoint = Mouse.GetPosition(this.parent);
Vector deltaVector = Point.Subtract(currentPoint, this.startPoint);
var destAngle = (-0.5 * deltaVector.X) + skewX;
if (destAngle == 0 && skewY == 0)
{
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformProperty).Reset();
rtTransform = null;
skewTransform = null;
}
else
{
if ((rtTransform == null) || !(rtTransform.Component is SkewTransform))
{
if (!this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformOriginProperty).IsSet)
{
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformOriginProperty).SetValue(new Point(0.5, 0.5));
}
if (this.skewTransform == null)
{
this.skewTransform = new SkewTransform(0, 0);
}
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformProperty).SetValue(skewTransform);
rtTransform = this.ExtendedItem.Properties[FrameworkElement.RenderTransformProperty].Value;
}
rtTransform.Properties["AngleX"].SetValue(destAngle);
}
_adornerLayer.UpdateAdornersForElement(this.ExtendedItem.View, true);
}
private void drag_Rotate_Changed(DragListener drag)
{
Point currentPoint = Mouse.GetPosition(this.parent);
Vector deltaVector = Point.Subtract(currentPoint, this.centerPoint);
double angle = Vector.AngleBetween(this.startVector, deltaVector);
var destAngle = this.initialAngle + Math.Round(angle, 0);
if (!Keyboard.IsKeyDown(Key.LeftCtrl))
{
destAngle = ((int)destAngle / 15) * 15;
}
if (destAngle == 0)
{
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformProperty).Reset();
rtTransform = null;
rotateTransform = null;
}
else
{
if ((rtTransform == null) || !(rtTransform.Component is RotateTransform))
{
if (!this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformOriginProperty).IsSet)
{
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformOriginProperty).SetValue(new Point(0.5, 0.5));
}
if (this.rotateTransform == null)
{
this.rotateTransform = new RotateTransform(0);
}
this.ExtendedItem.Properties.GetProperty(FrameworkElement.RenderTransformProperty).SetValue(rotateTransform);
rtTransform = this.ExtendedItem.Properties[FrameworkElement.RenderTransformProperty].Value;
}
rtTransform.Properties["Angle"].SetValue(destAngle);
_adornerLayer.UpdateAdornersForElement(this.ExtendedItem.View, true);
}
}