public void AddUndoEntity(UndoEntity entity)
{
if (!_disableUndo)
{
_undoEngine.AddUndoEntity(entity);
enableUndo();
}
}
public void AddUndoEntity(UndoEntity entity)
{
if (!_disableUndo)
{
_undoEngine.AddUndoEntity(entity);
OnHasUndoChange();
}
}
public void CommitUndoTransaction(string transactionName)
{
if (_undoTransaction != null && _undoTransaction.ContainsKey(transactionName))
{
MathExpGroupUndo _currStates = _undoTransaction[transactionName];
MathExpGroupUndo objRedo = new MathExpGroupUndo(this, (MathExpGroup)root.Export().Clone());
UndoEntity undo = new UndoEntity(_currStates, objRedo);
_undoTransaction.Remove(transactionName);
_undoEngine.AddUndoEntity(undo);
enableUndo();
_disableUndo = false;
}
}
protected override void OnSizeChanged(EventArgs e)
{
base.OnSizeChanged(e);
IMathDesigner md = this.Parent as IMathDesigner;
if (md != null)
{
md.ReSelectComponent(this);
if (!md.DisableUndo)
{
UndoEntity entity = new UndoEntity(new SizeUndo(md, this.ActiveDrawingID, _size0), new SizeUndo(md, this.ActiveDrawingID, this.Size));
md.AddUndoEntity(entity);
}
}
setChanged();
}
private void miAddLineNode_Click(object sender, EventArgs e)
{
MenuItem mi = sender as MenuItem;
if (mi != null)
{
NodeData nd = mi.Tag as NodeData;
if (nd != null)
{
LinkLineNode node = nd.Node;
if (node != null)
{
if (nd.Data != null)
{
if (nd.Data.GetType().Equals(typeof(Point)))
{
Point pt = (Point)nd.Data;
if (node.Line != null)
{
UInt32 key2 = node.ActiveDrawingID;
LinkLineNode newNode = node.InsertNode(pt.X + 5, pt.Y + 5);
if (UndoHost != null)
{
if (!UndoHost.DisableUndo)
{
UInt32 key1 = newNode.ActiveDrawingID;
UndoEntity entity = new UndoEntity(
new LinkLineUndoDelete(UndoHost, key1), new LinkLineUndoAdd(UndoHost, key2, pt));
UndoHost.AddUndoEntity(entity);
}
}
newNode.SaveLocation();
newNode.Selected = true;
ActiveDrawing.RefreshControl(this);
OnLineNodeAdded(newNode);
}
}
}
}
}
}
}
protected override void OnMouseUp(MouseEventArgs e)
{
if (bMD && this.Capture)
{
IMathDesigner p = this.Parent as IMathDesigner;
if (p != null && !p.DisableUndo)
{
UndoEntity entity = new UndoEntity(new PositionUndo(p, this.ActiveDrawingID, _location), new PositionUndo(p, this.ActiveDrawingID, this.Location));
p.AddUndoEntity(entity);
_location = this.Location;
}
}
bMD = false;
this.Capture = false;
Diagram dg = this.Parent as Diagram;
if (dg != null)
{
dg.SetMouseUpControl();
}
}
void componentChangeService_ComponentChanged(object sender, ComponentChangedEventArgs e)
{
if (!_disableUndo)
{
if (e.OldValue != null)
{
Point pOld = (Point)e.OldValue;
if (e.NewValue != null)
{
Point pNew = (Point)e.NewValue;
IActiveDrawing c = e.Component as IActiveDrawing;
if (c != null)
{
UInt32 key = c.ActiveDrawingID;
UndoEntity entity = new UndoEntity(new PositionUndo(this, key, pOld), new PositionUndo(this, key, pNew));
AddUndoEntity(entity);
}
}
}
}
}