public void DropElement(SymbolBaseViewModel symbolBaseViewModel)
{
if (symbolBaseViewModel is BlockViewModel)
{
var blockViewModel = (BlockViewModel)symbolBaseViewModel;
var blockSymbol = _sheet.CreateBlockSymbol();
blockSymbol.PositionX = blockViewModel.X;
blockSymbol.PositionY = blockViewModel.Y;
SymbolVms.Remove(_ghost);
_ghost = null;
_sheet.Add(blockSymbol, _client);
}
else if (symbolBaseViewModel is ConnectorViewModel)
{
var connectorViewModel = (ConnectorViewModel)symbolBaseViewModel;
var connector = _sheet.CreateConnector();
connector.PositionX = connectorViewModel.X;
connector.PositionY = connectorViewModel.Y;
SymbolVms.Remove(_ghost);
_ghost = null;
_sheet.AddConnector(connector, _client);
}
}
public void AddGhost(SymbolBaseViewModel element)
{
if (_ghost == null)
{
_ghost = element;
SymbolVms.Add(_ghost);
}
}
public void DeleteElement(SymbolBaseViewModel block)
{
if (block != null)
{
var toBeDeleted = _sheet.BlockSymbols.FirstOrDefault(b => b.Id == block.Id);
_sheet.Remove(toBeDeleted, _client);
}
}
public void OnElementItemDragging(SymbolBaseViewModel symbolBaseViewModel, double horizontalChange, double verticalChange, double positionX, double positionY)
{
if (symbolBaseViewModel is BlockViewModel)
{
var block = symbolBaseViewModel as BlockViewModel;
block.SetPosition(positionX, positionY);
}
else if (symbolBaseViewModel is ConnectorViewModel)
{
var connectorVm = symbolBaseViewModel as ConnectorViewModel;
connectorVm.SetPosition(positionX, positionY);
}
}
public void OnElementItemDragStarted(SymbolBaseViewModel symbolBaseViewModel, Point currentDragPoint)
{
if (symbolBaseViewModel is BlockViewModel)
{
var block = symbolBaseViewModel as BlockViewModel;
_shell.UndoManager.StartTransaction("Moving Block: " + block.Name);
}
else if (symbolBaseViewModel is ConnectorViewModel)
{
var connectorVm = symbolBaseViewModel as ConnectorViewModel;
_shell.UndoManager.StartTransaction("Moving Connector: " + connectorVm.Name);
}
}
public void OnElementItemDragCompleted(SymbolBaseViewModel symbolBaseViewModel, Point currentDragPoint)
{
_shell.UndoManager.EndTransaction();
}
