/// <summary>
/// 如果两直线的position相同,且有相交之处,则返回真
/// 即,是否有重叠
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateOverlap(PartitionLine line)
{
return(line.Position == Line.Position &&
line.IsRow == Line.IsRow &&
((line.Start <= Line.Start && line.End >= Line.Start) ||
(line.Start > Line.Start && Line.End >= line.Start)));
}
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
PartitionLine line2 = (PartitionLine)obj;
if (this.IsRow != line2.IsRow)
{
return(false);
}
if (this.Start != line2.Start)
{
return(false);
}
if (this.End != line2.End)
{
return(false);
}
if (this.Position != line2.Position)
{
return(false);
}
return(true);
}
/// <summary>
/// 查找起于或终于给定直线之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateStartEndTo(PartitionLine line)
{
return(line.IsRow != Line.IsRow &&
((line.End == Line.Position || line.Start == Line.Position) &&
line.Position >= Line.Start &&
line.Position <= Line.End));
}
/// <summary>
/// 返回和给定line相等的line的引用
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public List <PartitionLine> GetLine(PartitionLine line)
{
List <PartitionLine> resultLines = new List <PartitionLine>();
List <PartitionLine> allLines = new List <PartitionLine>(HPartionLines);
allLines.AddRange(VPartionLines);
FindLineByLine findByLine = new FindLineByLine(line);
PartitionLine includeLine = allLines.Find(findByLine.PredicateIncludeLine);
if (includeLine == null)
{
return(resultLines);
}
if (line.Start == includeLine.Start && line.End == includeLine.End)///line即为父直线
{
resultLines.Add(includeLine);
return(resultLines);
}
if (includeLine.ChildLines != null)
{
List <PartitionLine> childLines =
includeLine.ChildLines.FindAll(findByLine.PredicateIncludedLine);
resultLines.AddRange(childLines);
}
return(resultLines);
}
/// <summary>
/// 初始化直线数据:NewLines,EndPointLines,StartPointLines
/// </summary>
private void InitLines()
{
///是否和已有直线重合
PartitionLine line = new PartitionLine(
MovedLine.Start, MovedLine.End, MovedToPos, MovedLine.IsRow);
FindLineByLine findByLine = new FindLineByLine(line);
List <PartitionLine> allLines = new List <PartitionLine>(
TDPanel.DrawPanel.ListLine.HPartionLines);
allLines.AddRange(TDPanel.DrawPanel.ListLine.VPartionLines);
List <PartitionLine> overLapLines = allLines.FindAll(findByLine.PredicateOverlap);
List <PartitionLine> resultLines = new List <PartitionLine>();
if (overLapLines.Count > 0)
{
resultLines = line.GetNotOverlapLine(overLapLines);
}
else ///没有重合
{
resultLines.Add(line);
}
NewLines = resultLines;
///初始化_endPointLines,_startPointLines
FindLineByLine findByMovedLine = new FindLineByLine(MovedLine);
EndPointLines = allLines.FindAll(findByMovedLine.PredicateEndTo);
StartPointLines = allLines.FindAll(findByMovedLine.PredicateStartFrom);
}
/// <summary>
/// 将矩形数组转为相邻的成对存储
/// </summary>
/// <param name="rectList"></param>
/// <param name="line"></param>
/// <returns></returns>
public List <NeighbourRect> RectListToNeighbour(List <Rect> rectList, PartitionLine line)
{
///先设置所有rect为未访问
List <NeighbourRect> neighbourRectList = new List <NeighbourRect>();
if (line.IsRow)
{
rectList.Sort(new CompareRectX());
for (int i = 0; i < rectList.Count;)
{
neighbourRectList.Add(new NeighbourRect(rectList[i], rectList[i + 1]));
i += 2;
}
}
else
{
rectList.Sort(new CompareRectY());
for (int i = 0; i < rectList.Count;)
{
neighbourRectList.Add(new NeighbourRect(rectList[i], rectList[i + 1]));
i += 2;
}
}
return(neighbourRectList);
}
/// <summary>
/// 查找起始于给定直线之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateStartFrom(PartitionLine line)
{
return(line.IsRow != Line.IsRow &&
line.Start == Line.Position &&
line.Position >= Line.Start &&
line.Position <= Line.End);
}
/// <summary>
/// 寻找终点位于给定直线之分割线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateLineTo(PartitionLine line)
{
return(line.Position == Line.End &&
line.Start < Line.Position &&
line.End > Line.Position &&
line.IsRow != Line.IsRow);
}
/// <summary>
/// 根据直线,得到矩形之边界.
/// 默认line过了this之某边界
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public PartitionLine GetBorderline(PartitionLine line)
{
if (line.IsRow)
{
if (line.Position == this.Y)
{
return(new PartitionLine(X, X + Width, Y, true));
}
else if (line.Position == Y + Height)
{
return(new PartitionLine(X, X + Width, Y + Height, true));
}
else
{
return(null);
}
}
else
{
if (line.Position == this.X)
{
return(new PartitionLine(Y, Y + Height, X, false));
}
else if (line.Position == X + Width)
{
return(new PartitionLine(Y, Y + Height, X + Width, false));
}
else
{
return(null);
}
}
}
/// <summary>
/// 得到已知直线能移动的边界直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
internal PartitionLine[] GetLineBorderLine(PartitionLine line)
{
PartitionLine[] borderLines = new PartitionLine[2];
List <PartitionLine> allLines = new List <PartitionLine>(HPartionLines);
allLines.AddRange(VPartionLines);
FindLineByLine findByLine = new FindLineByLine(line);
List <PartitionLine> resultLines = allLines.FindAll(findByLine.PredicateParallelLine);
resultLines.Sort(new CompareLLDistance(line));
int i = 1;
for (; i < resultLines.Count; i++)
{
if ((resultLines[0].Position <line.Position && resultLines[i].Position> line.Position) ||
(resultLines[0].Position > line.Position && resultLines[i].Position < line.Position))
{
break;
}
}
///左或上的直线放在前面返回
if (resultLines[0].Position < resultLines[i].Position)
{
borderLines[0] = resultLines[0];
borderLines[1] = resultLines[i];
}
else
{
borderLines[0] = resultLines[i];
borderLines[1] = resultLines[0];
}
return(borderLines);
}
/// <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>
/// 查找和已知直线平行且有"重合"之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateParallelLine(PartitionLine line)
{
return(line.IsRow == Line.IsRow &&
line.Position != Line.Position &&
!(line.Start >= Line.End ||
line.End <= Line.Start
));
}
/// <summary>
/// 查找被给定直线包含之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateIncludedLine(PartitionLine line)
{
return
(line.IsRow == Line.IsRow &&
line.Position == Line.Position &&
line.Start >= Line.Start &&
line.End <= Line.End);
}
/// <summary>
/// 父直线被给定直线切割
/// </summary>
/// <param name="line">给定直线</param>
public void PartitionByLine(PartitionLine line)
{
if (this.IsRow == line.IsRow || this.Start >= line.Position || this.End <= line.Position)
{
return; ///两条线并向或并未相交
}
PartitionByPos(line.Position);
}
/// <summary>
/// 查找相交成首尾相交相连之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateJoined(PartitionLine line)
{
return(line.IsRow != Line.IsRow &&
((line.End == Line.Position || line.Start == Line.Position) &&
(line.Position == Line.Start || line.Position == Line.End)));
//((line.End == Line.Position && (line.Position == Line.Start || line.Position == Line.End)) ||
//(line.Start == Line.Position && (line.Position == Line.Start || line.Position == Line.End)));
}
/// <summary>
/// 查找能与给定直线正交之分割线:line被Line分割
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicatePartedLine(PartitionLine line)
{
return(line.Start < Line.Position &&
line.End > Line.Position &&
line.Position >= Line.Start &&
line.Position <= Line.End &&
line.IsRow != Line.IsRow);
}
/// <summary>
/// 取消选择直线
/// </summary>
/// <param name="line"></param>
internal void UnSelectLine(PartitionLine line)
{
List <PartitionLine> selectedLines = this.GetLine(line);
foreach (PartitionLine selectedLine in selectedLines)
{
selectedLine.UnSelectLine();
}
}
/// <summary>
/// 得到矩形的边界线
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public static PartitionLine[] GetRectBorderLines(Rectangle rect)
{
PartitionLine[] borderLines = new PartitionLine[4];
borderLines[0] = new PartitionLine(rect.X, rect.X + rect.Width, rect.Y, true);
borderLines[1] = new PartitionLine(rect.X, rect.X + rect.Width, rect.Y + rect.Height, true);
borderLines[2] = new PartitionLine(rect.Y, rect.Y + rect.Height, rect.X, false);
borderLines[3] = new PartitionLine(rect.Y, rect.Y + rect.Height, rect.X + rect.Width, false);
return(borderLines);
}
/// <summary>
/// 根据父直线来构造子线段
/// </summary>
public PartitionLine(int start, int end, PartitionLine fatherLine)
{
Start = start;
End = end;
Position = fatherLine.Position;
IsRow = fatherLine.IsRow;
FatherLine = fatherLine;
ChildLines = null;
}
/// <summary>
/// 得到矩形的边界线
/// </summary>
/// <param name="pt1"></param>
/// <param name="pt2"></param>
/// <returns></returns>
public static PartitionLine[] GetRectBorderLines(Point pt1, Point pt2)
{
PartitionLine[] borderLines = new PartitionLine[4];
Rectangle rect = CommonFuns.PointToRectangle(pt1, pt2);
borderLines[0] = new PartitionLine(rect.X, rect.X + rect.Width, rect.Y, true);
borderLines[1] = new PartitionLine(rect.X, rect.X + rect.Width, rect.Y + rect.Height, true);
borderLines[2] = new PartitionLine(rect.Y, rect.Y + rect.Height, rect.X, false);
borderLines[3] = new PartitionLine(rect.Y, rect.Y + rect.Height, rect.X + rect.Width, false);
return(borderLines);
}
/// <summary>
/// 添加直线,不做其他动作,只是添加数据到数组
/// </summary>
/// <param name="line"></param>
public void AddLine(PartitionLine line)
{
if (line.IsRow)
{
HPartionLines.Add(line);
}
else
{
VPartionLines.Add(line);
}
}
/// <summary>
/// 删除直线,不做其他动作,只是在数组中删除数据
/// </summary>
/// <param name="line"></param>
internal void RemoveLine(PartitionLine line)
{
if (line.IsRow)
{
HPartionLines.Remove(line);
}
else
{
VPartionLines.Remove(line);
}
}
/// <summary>
/// 寻找使得给定点在其start和end之间之分割线
/// 寻找终点位于给定直线之分割线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicatePointTo(PartitionLine line)
{
if (line.IsRow)
{
return(line.Start <= Point.X &&
line.End >= Point.X);
}
else
{
return(line.Start <= Point.Y &&
line.End >= Point.Y);
}
}
public AddLineCommand(DesignPanel tdPanel, PartitionLine addedLine)
{
Init();
AddedLines.Add(addedLine);
Start = addedLine.Start;
End = addedLine.End;
Position = addedLine.Position;
IsRow = addedLine.IsRow;
TDPanel = tdPanel;
TDPanel.Modified = true;
CommandInfo = "插入直线";
}
/// <summary>
/// 删除直线中的一个结点,可能会导致直线合并
/// </summary>
/// <param name="point"></param>
/// <param name="p"></param>
internal void DeletePoint(Point point, bool p)
{
List <PartitionLine> allLines = new List <PartitionLine>(HPartionLines);
allLines.AddRange(VPartionLines);
FindLineByPoint findByPoint = new FindLineByPoint(point);
PartitionLine resultLine = allLines.Find(findByPoint.PredicatePointIn);
if (resultLine != null)
{
resultLine.MergeByPoint(point);
}
}
public DeleteLineCommand(DesignPanel tdPanel, PartitionLine line, List <Rect> addedRects, List <Rect> removedRects)
{
Start = line.Start;
End = line.End;
Position = line.Position;
IsRow = line.IsRow;
AddedRects = addedRects;
RemovedRects = removedRects;
TDPanel = tdPanel;
TDPanel.Modified = true;
CommandInfo = "删除直线";
}
/// <summary>
/// 给定点在其上之直线
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicatePointIn(PartitionLine line)
{
if (line.IsRow)
{
return(line.Position == Point.Y &&
line.Start < Point.X &&
line.End > Point.X);
}
else
{
return(line.Position == Point.X &&
line.Start < Point.Y &&
line.End > Point.Y);
}
}
/// <summary>
/// 是否在rect内部
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public bool PredicateInRect(PartitionLine line)
{
if (line.IsRow)//是横向切割
{
return(line.Start >= Rect.X &&
line.End <= Rect.X + Rect.Width &&
line.Position > Rect.Y &&
line.Position < Rect.Y + Rect.Height);
}
else
{
return(line.Start >= Rect.Y &&
line.End <= Rect.Y + Rect.Height &&
line.Position > Rect.X &&
line.Position < Rect.X + Rect.Width);
}
}
//查找包含line的切割线
public bool Predicate(PartitionLine line)
{
if (IsRow == true)//是横向切割
{
return(line.IsRow == IsRow &&
line.Start <= Rect.X &&
line.End >= Rect.X + Rect.Width &&
line.Position >= Rect.Y &&
line.Position <= Rect.Y + Rect.Height);
}
else
{
return(line.IsRow == IsRow &&
line.Start <= Rect.Y &&
line.End >= Rect.Y + Rect.Height &&
line.Position >= Rect.X &&
line.Position <= Rect.X + Rect.Width);
}
}
/// <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);
}
}
}
