/// <summary>
/// 拷贝构造函数
/// </summary>
public PartitionLine(PartitionLine line)
{
if (line == null)
{
return;
}
IsSelected = line.IsSelected;
IsLocked = line.IsLocked;
Start = line.Start;
End = line.End;
Position = line.Position;
IsRow = line.IsRow;
if (line.ChildLines != null)///拷贝孩子
{
ChildLines = new SDLinkedList <PartitionLine>();
foreach (PartitionLine childLine in line.ChildLines)
{
ChildLines.AddLast(new PartitionLine(childLine));
}
}
if (line.FatherLine != null)
{
FatherLine = line.FatherLine;
}
}
/// <summary>
/// 根据位置来分割线段
/// </summary>
/// <param name="position"></param>
public void PartitionByPos(int position)
{
Point point;
if (IsRow)
{
point = new Point(position, Position);
}
else
{
point = new Point(Position, position);
}
///如果没有孩子线段
if (this.ChildLines == null)
{
ChildLines = new SDLinkedList <PartitionLine>();
PartitionLine preLine = new PartitionLine(this.Start, position, this.Position, this.IsRow);
PartitionLine aftLine = new PartitionLine(position, this.End, this.Position, this.IsRow);
preLine.FatherLine = this;
aftLine.FatherLine = this;
ChildLines.AddFirst(preLine);
ChildLines.AddLast(aftLine);
}
else
{
///找到被切割的线段
FindLineByPoint findByPoint = new FindLineByPoint(point);
LinkedListNode <PartitionLine> resultNode = ChildLines.Find(findByPoint.PredicatePointIn);
///在被切割的线段前后添加一线段,同时删除原线段
if (resultNode != null)
{
PartitionLine preLine = new PartitionLine(resultNode.Value.Start, position, resultNode.Value.Position, this.IsRow);
PartitionLine aftLine = new PartitionLine(position, resultNode.Value.End, resultNode.Value.Position, this.IsRow);
preLine.FatherLine = this;
aftLine.FatherLine = this;
ChildLines.AddBefore(resultNode, preLine);
ChildLines.AddAfter(resultNode, aftLine);
ChildLines.Remove(resultNode);
}
}
}
public CommandList()
{
Commands = new SDLinkedList <BaseCommand>();
}