internal void SetVisualCollection(IList <GraphicVisual> visuals)
{
if (visuals == null)
{
throw new ArgumentNullException();
}
_visualCollection = new ReadOnlyCollection <GraphicVisual>(visuals);
_info = new VisualInfo()
{
Fill = null, Stroke = null
};
if (_visualCollection.Count == 1)
{
}
switch (_visualCollection.Count)
{
case 0:
_info.Angle = 0;
_info.Origin = new Point(0, 0);
break;
case 1:
_info.Angle = _visualCollection[1].Angle;
_info.Origin = _visualCollection[1].Origin;
break;
default:
}
}
/// <summary>
/// 更新图形组的几何变换状态，更新所有子图的轮廓和填充样式。
/// </summary>
internal override void UpdateGraphicInfo()
{
// 更新图形组的几何变换状态
UpdateTransform();
// 更新所有子图的轮廓和填充样式
foreach (GraphicVisual gv in Children)
{
VisualInfo info = gv.GraphicInfo;
info.Fill = this.Fill;
info.Stroke = this.Stroke;
gv.GraphicInfo = info;
}
}
public GraphicVisual(VisualInfo graphicInfo)
{
_graphicInfo = graphicInfo;
}
public GeomVisual(IGeom goem, VisualInfo graphicInfo)
: base(graphicInfo)
{
_geom = goem;
UpdateGraphicInfo();
}
internal UnionVisual()
{
_visuals = new List <GraphicVisual>();
_info = VisualInfo.Default;
}
public GroupVisual(VisualInfo graphicInfo)
: base(graphicInfo)
{
UpdateGraphicInfo();
}
