public object Copy(IGraphClipboardContext context, IModelItem item)
{
INode node = (INode)item;
// If we are a Node with at least one label, we
// store a variant of the label text (see CopyItem
// implementation)
if (node.Labels.Count > 0)
{
return(new CopyItem(node.Labels[0].Text));
}
else
{
return(null);
}
}
/// <summary>
/// Copies the node style for the paste-operation because <see cref="RotatableNodeStyleDecorator"/> should not be shared.
/// </summary>
public void Paste(IGraphClipboardContext context, IModelItem item, object userData)
{
var node = item as INode;
if (node == null)
{
return;
}
var styleWrapper = node.Style as RotatableNodeStyleDecorator;
if (styleWrapper != null)
{
if (context.TargetGraph.GetFoldingView() != null)
{
context.TargetGraph.GetFoldingView().Manager.MasterGraph.SetStyle(node, styleWrapper.Clone() as INodeStyle);
}
else
{
context.TargetGraph.SetStyle(node, styleWrapper.Clone() as INodeStyle);
}
}
}
/// <summary>
/// Adds no additional state to the cut-operation.
/// </summary>
public object Cut(IGraphClipboardContext context, IModelItem item)
{
return(null);
}
/// <summary>
/// Returns whether or not to pasting of the given item is possible.
/// </summary>
public bool ShouldPaste(IGraphClipboardContext context, IModelItem item, object userData)
{
return(true);
}
/// <summary>
/// Returns whether or not to cutting the given item is possible.
/// </summary>
public bool ShouldCut(IGraphClipboardContext context, IModelItem item)
{
return(true);
}
public object Cut(IGraphClipboardContext context, IModelItem item)
{
// We do the same for Cut, since it's essentially just a Copy and Delete in succession.
return(Copy(context, item));
}
