public override bool OnMouseMove(MouseEditorEventArgs args)
{
removeAdorner();
// Find an element under the mouse with NodeInput DataContext
var feWithNodeInputDC = VisualTreeUtils.HitTestWithDataContext <NodeInput>(nodeEditor, args.Position);
if (feWithNodeInputDC != null)
{
toNodeInput = feWithNodeInputDC.DataContext as NodeInput;
toNode = VisualTreeUtils.GetDataContextOnParents <Node>(feWithNodeInputDC);
previewConnectionPath.DataContext = new Connection(node, nodeOutput, toNode, toNodeInput);
// Create the adorner
feWithNodeInputDC = VisualTreeUtils.GetLastParentWithDataContextOfType <NodeInput>(feWithNodeInputDC);
mAdorner = new SimpleCircleAdorner(feWithNodeInputDC);
var myAdornerLayer = AdornerLayer.GetAdornerLayer(feWithNodeInputDC);
myAdornerLayer.Add(mAdorner);
}
else
{
toNode = null;
toNodeInput = null;
previewConnectionPath.DataContext = new Connection(node, nodeOutput, null, null);
}
nodeEditor.InvalidatePreview();
return(true);
}
public override bool OnMouseButtonDown(MouseButtonEditorEventArgs args)
{
if (args.Button == MouseButton.Left)
{
mIsDragging = true;
mDragLastPoint = args.Position;
var mNodeFEToDrag = VisualTreeUtils.HitTestWithDataContext <Node>(nodeEditor, args.Position);
if (mNodeFEToDrag != null)
{
var node = (Node)mNodeFEToDrag.DataContext;
nodeEditor.BeginInteraction(new MoveNodeHandler(nodeEditor, node, mDragLastPoint));
}
}
else if (args.Button == MouseButton.Right)
{
mIsRightButtonDown = true;
}
return(true);
}
