private int NewShape(HCShapeStyle aStyle)
{
HCShape vShpae = null;
switch (aStyle)
{
case HCShapeStyle.hssNone:
break;
case HCShapeStyle.hssLine:
vShpae = new HCShapeLine();
break;
case HCShapeStyle.hssRectangle:
vShpae = new HCShapeRectangle();
break;
case HCShapeStyle.hssEllipse:
vShpae = new HCShapeEllipse();
break;
case HCShapeStyle.hssPolygon:
vShpae = new HCShapePolygon();
break;
}
if (vShpae != null)
{
vShpae.OnStructOver = DoShapeStructOver;
this.Add(vShpae);
return(this.Count - 1);
}
return(-1);
}
public void LoadFromStream(Stream aStream)
{
this.Clear();
int vCount = 0;
byte[] vBuffer = BitConverter.GetBytes(vCount);
aStream.Read(vBuffer, 0, vBuffer.Length);
vCount = BitConverter.ToInt32(vBuffer, 0);
HCShape vShape = null;
HCShapeStyle vStyle = HCShapeStyle.hssNone;
for (int i = 0; i < vCount; i++)
{
vStyle = (HCShapeStyle)aStream.ReadByte();
switch (vStyle)
{
case HCShapeStyle.hssNone:
throw new Exception("HCShape读取失败，无效的样式值！");
case HCShapeStyle.hssLine:
vShape = new HCShapeLine();
break;
case HCShapeStyle.hssRectangle:
vShape = new HCShapeRectangle();
break;
case HCShapeStyle.hssEllipse:
vShape = new HCShapeEllipse();
break;
case HCShapeStyle.hssPolygon:
vShape = new HCShapePolygon();
break;
}
aStream.Position = aStream.Position - sizeof(byte);
vShape.LoadFromStream(aStream);
this.Add(vShape);
}
}
public void ParseXml(XmlElement aNode)
{
this.Clear();
HCShape vShape = null;
HCShapeStyle vStyle = HCShapeStyle.hssNone;
XmlElement vShapeNode = null;
for (int i = 0; i < aNode.ChildNodes.Count; i++)
{
vShapeNode = aNode.ChildNodes[i] as XmlElement;
vStyle = (HCShapeStyle)byte.Parse(vShapeNode.Attributes["style"].Value);
switch (vStyle)
{
case HCShapeStyle.hssNone:
throw new Exception("HCShape读取失败，无效的样式值！");
case HCShapeStyle.hssLine:
vShape = new HCShapeLine();
break;
case HCShapeStyle.hssRectangle:
vShape = new HCShapeRectangle();
break;
case HCShapeStyle.hssEllipse:
vShape = new HCShapeEllipse();
break;
case HCShapeStyle.hssPolygon:
vShape = new HCShapePolygon();
break;
}
vShape.ParseXml(vShapeNode);
this.Add(vShape);
}
}