void CreateBoundsFromConstraints(View view, Constraint xConstraint, Constraint yConstraint, Constraint widthConstraint, Constraint heightConstraint)
{
var parents = new List <View>();
Func <double> x;
if (xConstraint != null)
{
x = () => xConstraint.Compute(this);
if (xConstraint.RelativeTo != null)
{
parents.AddRange(xConstraint.RelativeTo);
}
}
else
{
x = () => 0;
}
Func <double> y;
if (yConstraint != null)
{
y = () => yConstraint.Compute(this);
if (yConstraint.RelativeTo != null)
{
parents.AddRange(yConstraint.RelativeTo);
}
}
else
{
y = () => 0;
}
Func <double> width;
Func <double> height = null;
if (widthConstraint != null)
{
width = () => widthConstraint.Compute(this);
if (widthConstraint.RelativeTo != null)
{
parents.AddRange(widthConstraint.RelativeTo);
}
}
else
{
width = () => view.Measure(Width, heightConstraint != null ? height() : Height, MeasureFlags.IncludeMargins).Request.Width;
}
if (heightConstraint != null)
{
height = () => heightConstraint.Compute(this);
if (heightConstraint.RelativeTo != null)
{
parents.AddRange(heightConstraint.RelativeTo);
}
}
else
{
height = () => view.Measure(widthConstraint != null ? width() : Width, Height, MeasureFlags.IncludeMargins).Request.Height;
}
BoundsConstraint bounds = BoundsConstraint.FromExpression(() => new Rectangle(x(), y(), width(), height()), parents.Distinct().ToArray());
SetBoundsConstraint(view, bounds);
}
