private KosmographViewerEdge CreateEdge(DrawingEdge edge, LgLayoutSettings lgSettings)
{
lock (this.syncRoot)
{
if (drawingObjectsToIViewerObjects.ContainsKey(edge))
{
return((KosmographViewerEdge)drawingObjectsToIViewerObjects[edge]);
}
if (lgSettings != null)
{
return(CreateEdgeForLgCase(lgSettings, edge));
}
FrameworkElement labelTextBox;
drawingObjectsToFrameworkElements.TryGetValue(edge, out labelTextBox);
var vEdge = new KosmographViewerEdge(edge, labelTextBox);
var zIndex = ZIndexOfEdge(edge);
drawingObjectsToIViewerObjects[edge] = vEdge;
if (edge.Label != null)
{
SetVEdgeLabel(edge, vEdge, zIndex);
}
Panel.SetZIndex(vEdge.EdgePath, zIndex);
GraphCanvas.Children.Add(vEdge.EdgePath);
SetVEdgeArrowheads(vEdge, zIndex);
return(vEdge);
}
}
private KosmographViewerEdge CreateEdgeForLgCase(LgLayoutSettings lgSettings, DrawingEdge edge)
{
return((KosmographViewerEdge)(drawingObjectsToIViewerObjects[edge] = new KosmographViewerEdge(edge, lgSettings)
{
PathStrokeThicknessFunc = () => GetBorderPathThickness() * edge.Attr.LineWidth
}));
}
private void SetVEdgeArrowheads(KosmographViewerEdge vEdge, int zIndex)
{
if (vEdge.SourceArrowHeadPath != null)
{
Panel.SetZIndex(vEdge.SourceArrowHeadPath, zIndex);
GraphCanvas.Children.Add(vEdge.SourceArrowHeadPath);
}
if (vEdge.TargetArrowHeadPath != null)
{
Panel.SetZIndex(vEdge.TargetArrowHeadPath, zIndex);
GraphCanvas.Children.Add(vEdge.TargetArrowHeadPath);
}
}
private void HandleClickForEdge(KosmographViewerEdge vEdge)
{
//todo : add a hook
var lgSettings = Graph.LayoutAlgorithmSettings as LgLayoutSettings;
if (lgSettings != null)
{
var lgEi = lgSettings.GeometryEdgesToLgEdgeInfos[vEdge.Edge.GeometryEdge];
lgEi.SlidingZoomLevel = lgEi.SlidingZoomLevel != 0 ? 0 : double.PositiveInfinity;
ViewChangeEvent(null, null);
}
}
private void SetVEdgeLabel(DrawingEdge edge, KosmographViewerEdge vEdge, int zIndex)
{
FrameworkElement frameworkElementForEdgeLabel;
if (!drawingObjectsToFrameworkElements.TryGetValue(edge, out frameworkElementForEdgeLabel))
{
this.FillFrameworkElementsWithEdgeLabels(edge, out frameworkElementForEdgeLabel);
frameworkElementForEdgeLabel.Tag = new VLabel(edge, frameworkElementForEdgeLabel);
}
vEdge.VLabel = (VLabel)frameworkElementForEdgeLabel.Tag;
if (frameworkElementForEdgeLabel.Parent == null)
{
GraphCanvas.Children.Add(frameworkElementForEdgeLabel);
Panel.SetZIndex(frameworkElementForEdgeLabel, zIndex);
}
}