private void RemoveDraggedAdorner()
{
if (_draggedAdorner != null)
{
_draggedAdorner.Detach();
_draggedAdorner = null;
}
}
private void RemoveDraggedAdorner()
{
if (_draggedAdorner == null)
{
return;
}
_draggedAdorner.Detach();
_draggedAdorner = null;
}
/// <summary>
/// Drag and drop nodes, notes, annotations and connectors.
/// </summary>
/// <param name="mouse">Relative position to WorkspaceElements</param>
private void DragAndDrop(Point mouse)
{
// disable clearing selection while dragged data is being generated
// new AnnotationViewModel unnecessarily clears selection
DynamoSelection.Instance.ClearSelectionDisabled = true;
var selection = DynamoSelection.Instance.Selection;
var nodes = selection.OfType <NodeModel>();
var notes = selection.OfType <NoteModel>();
var pins = selection.OfType <ConnectorPinModel>();
var annotations = selection.OfType <AnnotationModel>();
var connectors = nodes.SelectMany(n =>
n.OutPorts.SelectMany(port => port.Connectors)
.Where(c => c.End != null && c.End.Owner.IsSelected)).Distinct();
// set list of selected viewmodels
draggedData = connectors.Select(c => (ViewModelBase) new ConnectorViewModel(ViewModel, c))
.Concat(pins.Select(p => new ConnectorPinViewModel(ViewModel, p)))
.Concat(notes.Select(n => new NoteViewModel(ViewModel, n)))
.Concat(annotations.Select(a => new AnnotationViewModel(ViewModel, a)))
.Concat(nodes.Select(n =>
{
var node = this.ChildrenOfType <NodeView>()
.FirstOrDefault(view => view.ViewModel.NodeModel == n);
if (node == null)
{
return(new NodeViewModel(ViewModel, n));
}
var nodeRect = node.nodeBorder;
var size = new Size(nodeRect.ActualWidth, nodeRect.ActualHeight);
// set fixed size for dragged nodes,
// so that they will correspond to origin nodes
return(new NodeViewModel(ViewModel, n, size));
})).ToList();
var locatableModels = nodes.Concat <ModelBase>(notes).Concat <ModelBase>(pins);
var minX = locatableModels.Any() ? locatableModels.Min(mb => mb.X) : 0;
var minY = locatableModels.Any() ? locatableModels.Min(mb => mb.Y) : 0;
// compute offset to correctly place selected items right under mouse cursor
var mouseOffset = new Point2D(mouse.X - minX, mouse.Y - minY);
DynamoSelection.Instance.ClearSelectionDisabled = false;
DragDrop.DoDragDrop(this, mouseOffset, DragDropEffects.Copy);
// remove dragged selection view
if (draggedAdorner != null)
{
draggedData = null;
draggedAdorner.Detach();
draggedAdorner = null;
}
}
private void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
WorkspaceViewModel wvm = (DataContext as WorkspaceViewModel);
if (this.snappedPort != null)
{
wvm.HandlePortClicked(this.snappedPort);
}
else
{
wvm.HandleLeftButtonDown(workBench, e);
}
// if selection is going to be dragged and ctrl is pressed
if (wvm.IsDragging && Keyboard.Modifiers == ModifierKeys.Control)
{
initialMousePosition = e.GetPosition(WorkspaceElements);
// disable clearing selection while dragged data is being generated
// new AnnotationViewModel unnecessarily clears selection
DynamoSelection.Instance.ClearSelectionDisabled = true;
var selection = DynamoSelection.Instance.Selection;
var nodes = selection.OfType <NodeModel>();
var notes = selection.OfType <NoteModel>();
var annotations = selection.OfType <AnnotationModel>();
var connectors = nodes.SelectMany(n =>
n.OutPorts.SelectMany(port => port.Connectors)
.Where(c => c.End != null && c.End.Owner.IsSelected)).Distinct();
// set list of selected viewmodels
draggedData = connectors.Select(c => (ViewModelBase) new ConnectorViewModel(ViewModel, c))
.Concat(notes.Select(n => new NoteViewModel(ViewModel, n)))
.Concat(annotations.Select(a => new AnnotationViewModel(ViewModel, a)))
.Concat(nodes.Select(n =>
{
var nodeRect = this.ChildrenOfType <NodeView>()
.First(view => view.ViewModel.NodeModel == n).nodeBorder;
var size = new Size(nodeRect.ActualWidth, nodeRect.ActualHeight);
// set fixed size for dragged nodes,
// so that they will correspond to origin nodes
return(new NodeViewModel(ViewModel, n, size));
})).ToList();
var mouse = e.GetPosition(WorkspaceElements);
var locatableModels = nodes.Concat <ModelBase>(notes);
var minX = locatableModels.Any() ? locatableModels.Min(mb => mb.X) : 0;
var minY = locatableModels.Any() ? locatableModels.Min(mb => mb.Y) : 0;
// compute offset to correctly place selected items right under mouse cursor
var mouseOffset = new Point2D(mouse.X - minX, mouse.Y - minY);
DynamoSelection.Instance.ClearSelectionDisabled = false;
DragDrop.DoDragDrop(this, mouseOffset, DragDropEffects.Copy);
// end dragging operation by setting State from DragSetup to None
ViewModel.HandleMouseRelease(workBench, e);
// remove dragged selection view
if (draggedAdorner != null)
{
draggedData = null;
draggedAdorner.Detach();
draggedAdorner = null;
}
}
InCanvasSearchBar.IsOpen = false;
}