public SvgAnimatedPreserveAspectRatio(string attr, SvgElement ownerElement)
{
_baseVal = new SvgPreserveAspectRatio(attr, ownerElement);
_animVal = _baseVal;
}
public SvgAnimatedPreserveAspectRatio(string attr, SvgElement ownerElement)
{
baseVal = new SvgPreserveAspectRatio(attr, ownerElement);
animVal = baseVal;
}
private Transform GetAspectRatioTransform(SvgPreserveAspectRatio spar,
SvgRect sourceBounds, SvgRect elementBounds)
{
double[] transformArray = spar.FitToViewBox(sourceBounds, elementBounds);
double translateX = transformArray[0];
double translateY = transformArray[1];
double scaleX = transformArray[2];
double scaleY = transformArray[3];
Transform translateMatrix = null;
Transform scaleMatrix = null;
if ((float)translateX >= 0 && (float)translateY >= 0)
{
translateMatrix = new TranslateTransform(translateX, translateY);
}
if ((float)scaleX != 1.0f && (float)scaleY != 1.0)
{
scaleMatrix = new ScaleTransform(scaleX, scaleY);
}
if (translateMatrix != null && scaleMatrix != null)
{
// Create a TransformGroup to contain the transforms
// and add the transforms to it.
TransformGroup transformGroup = new TransformGroup();
transformGroup.Children.Add(scaleMatrix);
transformGroup.Children.Add(translateMatrix);
return transformGroup;
}
else if (translateMatrix != null)
{
return translateMatrix;
}
else if (scaleMatrix != null)
{
return scaleMatrix;
}
return null;
}
