private void InitializeGraph()
{
IGraph graph = graphControl.Graph;
// initialize defaults
graph.NodeDefaults.Style = new ShinyPlateNodeStyle {
Brush = Brushes.DarkOrange
};
graph.EdgeDefaults.Style = new PolylineEdgeStyle {
TargetArrow = Arrows.Default
};
// create sample graph
graph.AddLabel(graph.CreateNode(new PointD(30, 30)), "Node");
INode node = graph.CreateNode(new PointD(90, 30));
graph.CreateEdge(node, graph.CreateNode(new PointD(90, 90)));
graphControl.FitGraphBounds();
// initially set the export rect to enclose part of the graph's contents
exportRect.Reshape(graphControl.ContentRect);
graph.CreateEdge(node, graph.CreateNode(new PointD(200, 30)));
graphControl.FitGraphBounds();
}
/// <summary>
/// Called after the a layout run finished.
/// </summary>
private void OnExecutorFinished()
{
if (canceled)
{
layoutEdit.Cancel();
}
else if (stopped)
{
// finish undo/redo
// save the layout of the rectangular area before and after the gesture
var newRect = clearRect.ToRectD();
var oldRect = oldClearRect;
graphControl.Graph.AddUndoUnit("Rectangle changed", "Rectangle changed",
() => clearRect.Reshape(oldRect),
() => clearRect.Reshape(newRect));
// add all changes of the complete gesture as one undo/redo unit
layoutEdit.Commit();
}
}
/// <summary>
/// Updates the target bounds of the currently hit layer.
/// </summary>
private int UpdateTargetBounds(PointD location)
{
int lastLayer = layerVisualCreator.GetLayer(location);
RectD indicatedBounds = layerVisualCreator.GetLayerBounds(lastLayer);
if (!indicatedBounds.IsFinite)
{
indicatedBounds = RectD.Empty;
}
targetBounds.Reshape(indicatedBounds);
return(lastLayer);
}
public void Reshape(IRectangle newRectangle)
{
tightRect = newRectangle.ToRectD();
rectangle.Reshape(tightRect.GetEnlarged(Margins));
invalid = false;
}
public void HandleReshape(IInputModeContext context, RectD originalBounds, RectD newBounds)
{
simulationRectangle.Reshape(newBounds);
}
public IVisual UpdateVisual(IRenderContext context, IVisual oldVisual)
{
rectangle.Reshape(RectD.FromCenter(Center, new SizeD(PageWidth + Margin, PageHeight + Margin)));
return(oldVisual);
}
