/// <summary>
/// 将没有内容的cg转化为null
/// </summary>
protected CompositeGraphic DisposeNullComposite(CompositeGraphic cg)
{
if (cg == null)
{
return(null);
}
if (cg.isEmpty())
{
cg.DisposeMe();
return(null);
}
cg.isTemporary = true;
return(cg);
}
public override CompositeGraphic SelectRect(Rect r, double left = 0.0f, double top = 0.0f)
{
CompositeGraphic compositegraphic = new CompositeGraphic();
compositegraphic.isTemporary = true;
RectangleGeometry rg = new RectangleGeometry(r);
if (getBorder(left, top).FillContainsWithDetail(rg) != IntersectionDetail.Empty || isTemporary)
{
if (!isCombined)
{
List <_graphicpos> lg = new List <_graphicpos>(_list);
for (int i = 0; i < lg.Count; i++)
{
_graphicpos gp = lg[i];
CompositeGraphic cg = gp.g.SelectRect(r, gp.left, gp.top);
if (cg == null || cg.isEmpty())
{
continue;
}
cg.isTemporary = true;
compositegraphic.MergeComposite(cg, left, top);
}
}
else
{
return(this);
}
}
if (compositegraphic.isEmpty())
{
return(null);
}
this.Add(compositegraphic);
return(compositegraphic);
}
public override CompositeGraphic SelectRect(Rect r, double left = 0.0f, double top = 0.0f)
{
CompositeGraphic compositegraphic = new CompositeGraphic();
compositegraphic.isTemporary = true;
RectangleGeometry rg = new RectangleGeometry(r);
if (getBorder(left, top).FillContainsWithDetail(rg) != IntersectionDetail.Empty || isTemporary)
{
if (!isCombined)
{
List<_graphicpos> lg = new List<_graphicpos>(_list);
for (int i = 0; i < lg.Count; i++)
{
_graphicpos gp = lg[i];
CompositeGraphic cg = gp.g.SelectRect(r, gp.left, gp.top);
if (cg == null || cg.isEmpty()) continue;
cg.isTemporary = true;
compositegraphic.MergeComposite(cg, left, top);
}
}
else
{
return this;
}
}
if (compositegraphic.isEmpty()) return null;
this.Add(compositegraphic);
return compositegraphic;
}