public void SelectDrawObj(DrawObj drawObj)
{
if (FindDrawObj(drawObj.Name) != null)
{
_selectDrawObj = drawObj;
}
}
private void Redo(ActionType type, DrawObj drawObj)
{
switch (type)
{
case ActionType.Add:
DoUndoRedoAdd(OperationType.Undo, ActionType.Add, drawObj);
break;
case ActionType.Delete:
DoUndoRedoDelete(OperationType.Undo, ActionType.Delete, drawObj);
break;
case ActionType.Move:
DoUndoRedoMove(OperationType.Undo, drawObj);
break;
case ActionType.Rotate:
DoUndoRedoRotate(OperationType.Undo, drawObj);
break;
case ActionType.Zoom:
DoUndoRedoZoom(OperationType.Undo, drawObj);
break;
}
}
private void DoRotate(DrawObj drawObj, double rotateAngle)
{
if (drawObj != null)
{
Console.WriteLine("Rotate {0} from {1} to {2} ", drawObj.Name, drawObj.RotateAngle, rotateAngle);
drawObj.RotateAngle = rotateAngle;
}
}
private void DoZoom(DrawObj drawObj, double zoomScale)
{
if (drawObj != null)
{
Console.WriteLine("Zoom {0} from {1} to {2} ", drawObj.Name, drawObj.ZoomScale, zoomScale);
drawObj.ZoomScale = zoomScale;
}
}
private void DoMove(DrawObj drawObj, double offset)
{
if (drawObj != null)
{
Console.WriteLine("Move {0} from {1} to {2} ", drawObj.Name, drawObj.Offset, offset);
drawObj.Offset = offset;
}
}
private DrawObj DoAdd()
{
var drawObj = new DrawObj("DrawObj" + count);
count = count + 1;
AddNewObjToList(drawObj);
return(drawObj);
}
private void DoUndoRedoZoom(OperationType operationType, DrawObj drawObj)
{
var findObj = FindDrawObj(drawObj.Name);
if (findObj != null)
{
AddActionToList(operationType, ActionType.Zoom, findObj);
DoZoom(findObj, drawObj.ZoomScale);
}
}
private void DoUndoRedoRotate(OperationType operationType, DrawObj drawObj)
{
var findObj = FindDrawObj(drawObj.Name);
if (findObj != null)
{
AddActionToList(operationType, ActionType.Rotate, findObj);
DoRotate(findObj, drawObj.RotateAngle);
}
}
private void DoUndoRedoMove(OperationType operationType, DrawObj drawObj)
{
var findObj = FindDrawObj(drawObj.Name);
if (findObj != null)
{
AddActionToList(operationType, ActionType.Move, findObj);
DoMove(findObj, drawObj.Offset);
}
}
public DrawObjManager()
{
_drawObjList = new List <DrawObj>();
_undoList = new List <DrawObjAction>();
_redoList = new List <DrawObjAction>();
_selectDrawObj = null;
count = 0;
}
public object Clone()
{
var other = new DrawObj(Name)
{
Offset = Offset,
RotateAngle = RotateAngle,
ZoomScale = ZoomScale
};
return(other);
}
private void DoDelete(DrawObj drawObj)
{
if (drawObj != null)
{
Console.WriteLine("Delete " + drawObj.Name);
_drawObjList.Remove(drawObj);
if (_drawObjList.Count > 0)
{
SelectDrawObj(_drawObjList.First());
}
}
}
private void AddActionToList(OperationType operationType, ActionType type, DrawObj drawObj)
{
if (drawObj != null)
{
switch (operationType)
{
case OperationType.Normal:
AddUndoAction(new DrawObjAction(type, drawObj));
EmptyRedoAction();
break
;
case OperationType.Undo:
AddUndoAction(new DrawObjAction(type, drawObj));
break;
case OperationType.Redo:
AddRedoAction(new DrawObjAction(type, drawObj));
break;
}
}
}
private void DoUndoRedoDelete(OperationType operationType, ActionType actionType, DrawObj drawObj)
{
var findObj = FindDrawObj(drawObj.Name);
if (findObj != null)
{
AddActionToList(operationType, actionType, findObj);
DoDelete(findObj);
}
}
private void DoUndoRedoAdd(OperationType operationType, ActionType actionType, DrawObj drawObj)
{
var cloneObj = drawObj.Clone() as DrawObj;
AddNewObjToList(cloneObj);
AddActionToList(operationType, actionType, cloneObj);
}
private void AddNewObjToList(DrawObj drawObj)
{
Console.WriteLine("Add " + drawObj.Name);
_drawObjList.Add(drawObj);
SelectDrawObj(drawObj);
}