/// <summary> /// Shows adorners over the selected element /// </summary> private void activateAdorners(object sender, MouseEventArgs e) { if (_isDragging) { return; } clearAdorners(); var border = sender as Border; if (border == null) { return; } var adornerLayers = AdornerLayer.GetAdornerLayer(border); var adorner = new SimpleAdorner(border); adorner.dragStarted += onDragStarted; adorner.centerDragging += onCenterAdornerDragging; adorner.edgeDragging += onEdgeAdornerDragging; adorner.dragCompleted += onDragCompleted; adornerLayers?.Add(adorner); }
/// <summary> /// Initiates a drag and drop session. /// </summary> private void DragStarted() { _isDragging = true; _dragAdornment = new SimpleAdorner(_dragElement); AdornerLayer layer = AdornerLayer.GetAdornerLayer(_dragElement); layer.Add(_dragAdornment); }
/// <summary> /// Initiates a drag and drop session. /// </summary> private void DragStarted() { _isDragging = true; _dragAdornment = new SimpleAdorner(_dragElement); AdornerLayer layer = AdornerLayer.GetAdornerLayer(_dragElement); layer.Add(_dragAdornment); }
/// <summary> /// Completes a drag and drop either cancelling it or committing it. /// </summary> private void DragFinished(bool cancelled, Point? dropPoint) { Mouse.Capture(null); if (_isDragging) { AdornerLayer.GetAdornerLayer(_dragAdornment.AdornedElement).Remove(_dragAdornment); if (cancelled == false) { if (_dropAction != null) { _dropAction(dropPoint.Value); _dropAction = null; } //Canvas.SetTop(_dragElement, _dragTop + _overlayElement.TopOffset); //Canvas.SetLeft(_dragElement, _dragLeft + _overlayElement.LeftOffset); // commit result } _dragAdornment = null; } _isDragging = false; _isMouseDown = false; }