/// <summary>
/// 将一个矩形分割成多个矩形
/// </summary>
/// <param name="isRow">按横分割</param>
/// <param name="partNum">分割矩形数</param>
/// <returns></returns>
internal List <Rect> PartRect(Rect rect, bool isRow, int partNum)
{
List <Rect> newRects = new List <Rect>();
if (isRow)///按行分割
{
int step = rect.Height / partNum;
int i = 0;
for (; i < partNum - 1; i++)
{
newRects.Add(
TDPanel.CreateRect(
rect.X,
rect.Y + i * step,
rect.Width,
step,
rect));
}
///最后一个特殊处理，以解决可能不能整除的问题
newRects.Add(
TDPanel.CreateRect(
rect.X,
rect.Y + i * step,
rect.Width,
rect.Height - i * step,
rect));
}
else
{
int i = 0;
int step = rect.Width / partNum;
for (; i < partNum - 1; i++)
{
newRects.Add(
TDPanel.CreateRect(
rect.X + i * step,
rect.Y,
step,
rect.Height,
rect));
}
///最后一个特殊处理，以解决可能不能整除的问题
newRects.Add(
TDPanel.CreateRect(
rect.X + i * step,
rect.Y,
rect.Width - i * step,
rect.Height,
rect));
}
SnipRectList.AddRange(newRects);
return(newRects);
}
/// <summary>
/// 添加直线
/// </summary>
/// <param name="command"></param>
public void AddLine(AddLineCommand command)
{
if (!command.IsRedo)///是第一次插入直线,而非重做撤销的插入直线命令
{
///找到所有被分割之矩形
PartitionLine line = new PartitionLine(command.Start, command.End, command.Position, command.IsRow);
FindRectByLine findRect = new FindRectByLine(line);
List <Rect> resultRects = SnipRectList.FindAll(findRect.PartitionLinePredicate);
for (int i = 0; i < resultRects.Count; i++)
{
command.RemovedRects.Add(resultRects[i]);
if (line.IsRow)
{
Rect firstRect = TDPanel.CreateRect(
resultRects[i].X,
resultRects[i].Y,
resultRects[i].Width,
line.Position - resultRects[i].Y
);
Rect secondRect = TDPanel.CreateRect(
resultRects[i].X,
line.Position,
resultRects[i].Width,
resultRects[i].Y + resultRects[i].Height - line.Position
);
// SnipRectList.Remove(resultRects[i]);
resultRects[i].IsDeleted = true;
SnipRectList.Add(firstRect);
SnipRectList.Add(secondRect);
command.AddedRects.Add(firstRect);
command.AddedRects.Add(secondRect);
}
else
{
Rect firstRect = TDPanel.CreateRect(
resultRects[i].X,
resultRects[i].Y,
line.Position - resultRects[i].X,
resultRects[i].Height
);
Rect secondRect = TDPanel.CreateRect(
line.Position,
resultRects[i].Y,
resultRects[i].Width + resultRects[i].X - line.Position,
resultRects[i].Height
);
//SnipRectList.Remove(resultRects[i]);
resultRects[i].IsDeleted = true;
SnipRectList.Add(firstRect);
SnipRectList.Add(secondRect);
command.AddedRects.Add(firstRect);
command.AddedRects.Add(secondRect);
}
}
command.IsRedo = true;
}
else///重做撤销的插入直线命令
{
foreach (Rect rect in command.RemovedRects)
{
rect.IsDeleted = true;
}
foreach (Rect rect in command.AddedRects)
{
rect.IsDeleted = false;
}
}
}
