/// <summary>
/// Paste implementation that uses a filter delegate to copy only nodes and labels as well as a different paste offset.
/// </summary>
/// <remarks>The customized paste operations (i.e. label text change) from <see cref="TaggedNodeClipboardHelper"/>
/// will still be used.</remarks>
private void OnPasteSpecialCommandExecuted(object sender, ExecutedCommandEventArgs executedCommandEventArgs)
{
var control = (GraphControl)sender;
GraphClipboard clipboard = control.Clipboard;
// Clear the old selection.
control.Selection.Clear();
// This is the filter delegate for the Paste call.
Predicate <IModelItem> filter = item => item is INode || (item is ILabel && ((ILabel)item).Owner is INode);
// This delegate is executed for every pasted element. We use it to select the pasted nodes.
ElementCopiedCallback pasted =
delegate(IModelItem originalItem, IModelItem pastedItem) {
if (pastedItem is INode)
{
control.Selection.SetSelected(pastedItem, true);
}
};
clipboard.Paste(control.Graph, filter, pasted);
// The next paste location should be shifted a little (just like the normal paste)
clipboard.PasteDelta += ((GraphEditorInputMode)graphControl.InputMode).PasteDelta;
}
public override void Duplicate(IInputModeContext context, IGraph sourceGraph, Predicate <IModelItem> filter, ElementCopiedCallback elementDuplicated = null)
{
// store the relative z-order for duplicated items
StoreInitialZOrder(sourceGraph, filter);
// collect new items in the OnCopiedFromClipboard callbacks
newItems.Clear();
base.Duplicate(context, sourceGraph, filter, elementDuplicated);
// set final z-orders of newItems depending on their new parent group
ArrangeItems(newItems, sourceGraph.GetFoldingView());
}
public override void Paste(IInputModeContext context, IGraph targetGraph, Predicate <IModelItem> filter = null, ElementCopiedCallback elementPasted = null, Predicate <IModelItem> targetFilter = null)
{
// collect new items in the OnCopiedFromClipboard callbacks
newItems.Clear();
base.Paste(context, targetGraph, filter, elementPasted, targetFilter);
// set final z-orders of newItems depending on their new parent group
ArrangeItems(newItems, targetGraph.GetFoldingView());
}
