private void OnPropertyChanged(ManagedWeakReference instance, DependencyProperty property, DependencyPropertyChangedEventArgs args)
{
if (property == FillRuleProperty)
{
var rule = FillRule switch
{
FillRule.EvenOdd => "evenodd",
FillRule.Nonzero => "nonzero",
_ => "evenodd"
};
_svgElement.SetAttribute("fill-rule", rule);
}
else if (property == ChildrenProperty)
{
_svgElement.ClearChildren();
if (args.OldValue is GeometryCollection oldGeometries)
{
oldGeometries.VectorChanged -= OnGeometriesChanged;
}
if (args.NewValue is GeometryCollection newGeometries)
{
newGeometries.VectorChanged += OnGeometriesChanged;
newGeometries.SetParent(this);
foreach (var child in Children)
{
_svgElement.AddChild(child.GetSvgElement());
}
}
}
}
internal override void OnPropertyChanged2(DependencyPropertyChangedEventArgs args)
{
base.OnPropertyChanged2(args);
var property = args.Property;
if (property == DataProperty)
{
_root.ClearChildren();
_root.AddChild(Data.GetSvgElement());
}
}
private void DrawImagePixel(SvgElement container, Color c, float x, float y, float w, float h)
{
if (c.A == 0)
return;
SvgRectElement rc = new SvgRectElement(x, y, w, h);
rc.Id="";
rc.Style.Set("fill", "rgb("+c.R+","+c.G+","+c.B+")");
if (c.A < 255)
rc.Style.Set("opacity", c.A/255f);
container.AddChild(rc);
}
