private void OnLineColorChanged(object oldColor, object newColor)
{
if (updatingPen)
{
return;
}
Pen oldPen = Pen;
Pen newPen = oldPen != null?oldPen.CloneCurrentValue() : new Pen();
if (newColor is Color)
{
newPen.Brush = new SolidColorBrush((Color)newColor);
}
else
{
// no color -
if (AllowNull)
{
Pen = null;
return;
}
newPen.Brush = new SolidColorBrush(Colors.Transparent);
}
newPen.Freeze();
Pen = newPen;
}
private void OnDashStyleChanged(Pen oldDashStyle, Pen newDashStyle)
{
if (updatingPen)
{
return;
}
Pen oldPen = Pen;
Pen newPen = oldPen != null?oldPen.CloneCurrentValue() : new Pen();
newPen.DashStyle = newDashStyle.DashStyle;
newPen.Freeze();
Pen = newPen;
}
private void OnThicknessChanged(Pen oldThickness, Pen newThickness)
{
if (updatingPen)
{
return;
}
Pen oldPen = Pen;
Pen newPen = oldPen != null?oldPen.CloneCurrentValue() : new Pen();
newPen.Thickness = newThickness.Thickness;
newPen.Freeze();
Pen = newPen;
}
public static Pen GetOutPen(this Pen pen, ReadOnlyCoordinatesSystemManager coordinatesSystemManager)
{
if (pen?.CloneCurrentValue() is Pen p)
{
if (GetIn(p))
{
p.Thickness *= coordinatesSystemManager.WidthRatio;
}
return(p);
}
else
{
return(null);
}
}
/* void ILegacyDevice.PushOpacity(double opacity, Brush opacityMask)
* {
* Debug.Assert(opacityMask == null);
*
* _ctx.PushOpacity(opacity);
* }
*/
void ILegacyDevice.DrawGeometry(Brush brush, Pen pen, Brush strokeBrush, Geometry geometry)
{
if (pen != null)
{
if (strokeBrush == null)
{
pen = null;
}
else
{
pen = pen.CloneCurrentValue();
pen.Brush = strokeBrush;
}
}
_ctx.DrawGeometry(brush, pen, geometry);
}
private Pen ReducePen(Pen pen, Rect bounds)
{
if (PenProxy.IsNull(pen))
{
return(null);
}
Brush b = ReduceBrush(pen.Brush, bounds);
if (b == null)
{
return(null);
}
if (!Object.ReferenceEquals(b, pen.Brush))
{
pen = pen.CloneCurrentValue();
pen.Brush = b;
}
return(pen);
}
