private void SetSelected(_Control control)
{
_selectedControls.Add(control);
if (null == _adornerLayer)
{
_adornerLayer = AdornerLayer.GetAdornerLayer(control);
}
int rootHasCode = control.GetHashCode();
if (!_adorners.ContainsKey(rootHasCode))
{
if (control is _Line)
{
_adorners.Add(rootHasCode, new LineAdorner(control as _Line));
}
else
{
_adorners.Add(rootHasCode, new ElementAdorner(control));
}
}
ElementAdorner rootAdorner = _adorners[rootHasCode];
_adornerLayer.Add(rootAdorner);
LoadAdorner(rootAdorner);
}
private void HandlerMouseButtonLeftDown(MouseButtonEventArgs e, _Control rootElement)
{
if (null != rootElement)
{
if (null == _adornerLayer)
{
_adornerLayer = AdornerLayer.GetAdornerLayer(rootElement);
}
int rootHasCode = rootElement.GetHashCode();
if (!_adorners.ContainsKey(rootHasCode))
{
if (rootElement is _Line)
{
_adorners.Add(rootHasCode, new LineAdorner(rootElement as _Line));
}
else
{
_adorners.Add(rootHasCode, new ElementAdorner(rootElement));
}
}
ElementAdorner rootAdorner = _adorners[rootHasCode];
if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
if (_selectedControls.Contains(rootElement))
{
_adornerLayer.Remove(rootAdorner);
UnLoadAdorner(rootAdorner);
_selectedControls.Remove(rootElement);
}
else
{
_adornerLayer.Add(rootAdorner);
LoadAdorner(rootAdorner);
_selectedControls.Add(rootElement);
rootAdorner.RaisePreviewMouseLeftButtonDown(e);
}
}
else
{
CleanSelection();
_adornerLayer.Add(rootAdorner);
LoadAdorner(rootAdorner);
_selectedControls.Add(rootElement);
rootAdorner.RaisePreviewMouseLeftButtonDown(e);
}
}
else
{
CleanSelection();
}
if (null != SelectionChangedAction)
{
SelectionChangedAction(_selectedControls);
}
}
private void ActivatedAdorner()
{
foreach (_Control ui in _selectedControls)
{
int hasCode = ui.GetHashCode();
ElementAdorner adorner = _adorners[hasCode];
_adorners[hasCode].IsHitTestVisible = true;
}
}
public void CleanSelection()
{
foreach (_Control ui in _selectedControls)
{
int hasCode = ui.GetHashCode();
ElementAdorner adorner = _adorners[hasCode];
_adornerLayer.Remove(adorner);
UnLoadAdorner(adorner);
}
_selectedControls.Clear();
}
public void Delete()
{
foreach (_Control ui in _selectedControls)
{
int hasCode = ui.GetHashCode();
ElementAdorner adorner = _adorners[hasCode];
_adornerLayer.Remove(adorner);
UnLoadAdorner(adorner);
this.Children.Remove(ui);
}
_selectedControls.Clear();
}
private void UnLoadAdorner(ElementAdorner rootAdorner)
{
rootAdorner.OffsetAction = null;
rootAdorner.ElementMovingAction = null;
rootAdorner.ElementMovedAction = null;
rootAdorner.PreviewMouseLeftButtonDown -= Adorner_PreviewMouseLeftButtonDown;
if (rootAdorner is LineAdorner)
{
LineAdorner lineAdorner = rootAdorner as LineAdorner;
lineAdorner.LineMovingAction = null;
lineAdorner.LineMovedAction = null;
}
}
private void LoadAdorner(ElementAdorner rootAdorner)
{
rootAdorner.OffsetAction = OnOffset;
rootAdorner.ElementMovingAction = OnElementMoving;
rootAdorner.ElementMovedAction = OnElementMoved;
rootAdorner.PreviewMouseLeftButtonDown += Adorner_PreviewMouseLeftButtonDown;
if (rootAdorner is LineAdorner)
{
LineAdorner lineAdorner = rootAdorner as LineAdorner;
lineAdorner.LineMovingAction = OnLineMoving;
lineAdorner.LineMovedAction = OnLineMoved;
}
}
private void OnOffset(ElementAdorner sender, ElementAdorner.OffsetType type, double offsetX, double offsetY)
{
if (_selectedControls.Count > 1)
{
foreach (_Control ui in _selectedControls)
{
int hasCode = ui.GetHashCode();
ElementAdorner adorner = _adorners[hasCode];
if (sender != adorner)
{
adorner.Offset(type, offsetX, offsetY);
}
}
}
}
