/// <summary>
/// 撤销添加直线
/// </summary>
/// <param name="command"></param>
public void UnAddLine(AddLineCommand command)
{
foreach (Rect rect in command.RemovedRects)
{
rect.IsDeleted = false;
}
foreach (Rect rect in command.AddedRects)
{
rect.IsDeleted = true;
}
}
/// <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;
}
}
}
