internal override Matrix3x2 ToMatrix(Point absoluteOrigin)
{
// Creates native transform which applies multiple transformations in this order:
// Scale(ScaleX, ScaleY)
// Skew(SkewX, SkewY)
// Rotate(Rotation)
// Translate(TranslateX, TranslateY)
// https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.media.compositetransform.aspx
var centerX = absoluteOrigin.X + CenterX;
var centerY = absoluteOrigin.Y + CenterY;
var matrix = Matrix3x2.Identity;
matrix *= ScaleTransform.GetMatrix(centerX, centerY, ScaleX, ScaleY);
matrix *= SkewTransform.GetMatrix(CenterX, CenterY, SkewX, SkewY);
matrix *= RotateTransform.GetMatrix(CenterX, CenterY, Rotation);
matrix *= TranslateTransform.GetMatrix(TranslateX, TranslateY);
return(matrix);
}
public ElementAdapter(FrameworkElement el)
{
element_ = el;
/**
* copy default property
*/
if(!double.IsNaN(Element.Width)){
Width = Element.Width;
}
if (!double.IsNaN(Element.Height))
{
Height = Element.Height;
}
X = Canvas.GetLeft(Element);
Y = Canvas.GetTop(Element);
Alpha = Element.Opacity;
/**
* Transform
*/
ScaleTransform myScaleTransform = new ScaleTransform();
myScaleTransform.ScaleX = 1.0;
myScaleTransform.ScaleY = 1.0;
RotateTransform myRotateTransform = new RotateTransform();
myRotateTransform.Angle = 0;
TranslateTransform myTranslate = new TranslateTransform();
myTranslate.X = 0;
myTranslate.X = 0;
SkewTransform mySkew = new SkewTransform();
mySkew.AngleX = 0;
mySkew.AngleY = 0;
transformGroup_ = new TransformGroup();
transformGroup_.Children.Add(myScaleTransform);
transformGroup_.Children.Add(myRotateTransform);
transformGroup_.Children.Add(myTranslate);
transformGroup_.Children.Add(mySkew);
element_.RenderTransform = transformGroup_;
}