public override void LoadFromStream(Stream aStream)
{
FPoints.Clear();
base.LoadFromStream(aStream);
FWidth = (byte)aStream.ReadByte();
FLineStyle = (HCPenStyle)aStream.ReadByte();
int vCount = 0;
byte[] vBuffer = BitConverter.GetBytes(vCount);
aStream.Read(vBuffer, 0, vBuffer.Length);
vCount = BitConverter.ToInt32(vBuffer, 0);
int vX = 0, vY = 0;
HCPoint vPoint = null;
for (int i = 0; i < vCount; i++)
{
aStream.Read(vBuffer, 0, vBuffer.Length);
vX = BitConverter.ToInt32(vBuffer, 0);
aStream.Read(vBuffer, 0, vBuffer.Length);
vY = BitConverter.ToInt32(vBuffer, 0);
vPoint = new HCPoint(vX, vY);
FPoints.Add(vPoint);
}
}
public override void Assign(HCShape source)
{
base.Assign(source);
FPoints.Clear();
for (int i = 0; i < (source as HCShapePolygon).Points.Count; i++)
{
HCPoint vPoint = new HCPoint(
(source as HCShapePolygon).Points[i].X,
(source as HCShapePolygon).Points[i].Y);
FPoints.Add(vPoint);
}
}
protected int GetPointAt(int x, int y)
{
HCPoint vPoint = null;
for (int i = 0; i < FPoints.Count; i++)
{
vPoint = FPoints[i];
if (HC.PtInRect(new RECT(vPoint.X - PointSize, vPoint.Y - PointSize,
vPoint.X + PointSize, vPoint.Y + PointSize), new POINT(x, y)))
{
return(i);
}
}
return(-1);
}
public override void ParseXml(XmlElement aNode)
{
FPoints.Clear();
base.ParseXml(aNode);
FWidth = byte.Parse(aNode.Attributes["width"].Value);
FLineStyle = (HCPenStyle)byte.Parse(aNode.Attributes["ls"].Value);
HCPoint vPoint = null;
for (int i = 0; i < aNode.ChildNodes.Count; i++)
{
vPoint = new HCPoint(int.Parse(aNode.ChildNodes[i].Attributes["x"].Value),
int.Parse(aNode.ChildNodes[i].Attributes["y"].Value));
FPoints.Add(vPoint);
}
}
public override bool MouseDown(MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
if (StructState == HCStructState.hstcStructing)
{
StructOver();
}
return(false);
}
if (e.Button != MouseButtons.Left)
{
return(false);
}
bool vResult = false;
if (StructState != HCStructState.hstcStop) // 没有处于构建状态
{
if (StructState == HCStructState.hstcStart) // 开始构建
{
HCPoint vPoint = new HCPoint(e.X, e.Y);
FPoints.Add(vPoint);
vPoint = new HCPoint(e.X, e.Y);
FPoints.Add(vPoint);
FActivePointIndex = FPoints.Count - 1;
StructState = HCStructState.hstcStructing;
}
else
if (StructState == HCStructState.hstcStructing)
{
HCPoint vPoint = new HCPoint(e.X, e.Y);
FPoints.Add(vPoint);
FActivePointIndex = FPoints.Count - 1;
}
else
{
StructOver();
}
vResult = true;
}
else
{
int vIndex = GetPointAt(e.X, e.Y);
if (FActivePointIndex != vIndex)
{
FActivePointIndex = vIndex;
Active = FActivePointIndex >= 0;
vResult = Active;
}
else
{
vResult = vIndex >= 0;
}
if (!vResult) // 是否在线段上
{
vIndex = GetLineAt(e.X, e.Y);
if (FActiveLineIndex != vIndex)
{
FActiveLineIndex = vIndex;
Active = FActiveLineIndex >= 0;
vResult = Active;
}
else
{
vResult = vIndex >= 0;
}
}
if (vResult)
{
FMousePt.X = e.X;
FMousePt.Y = e.Y;
}
}
return(vResult);
}
