internal static DNode CreateDNodeAndSetNodeBoundaryCurveForSubgraph(Graph drawingGraph, DGraph dGraph, GeometryNode geomNode,
DrawingNode drawingNode, GViewer viewer)
{
double width = 0;
double height = 0;
var dNode = new DNode(drawingNode, viewer);
dGraph.AddNode(dNode);
Drawing.Label label = drawingNode.Label;
if (label != null)
{
CreateDLabel(dNode, label, out width, out height, viewer);
}
if (width < drawingGraph.Attr.MinNodeWidth)
{
width = drawingGraph.Attr.MinNodeWidth;
}
if (height < drawingGraph.Attr.MinNodeHeight)
{
height = drawingGraph.Attr.MinNodeHeight;
}
var cluster = (Cluster)geomNode;
var margin = dNode.DrawingNode.Attr.LabelMargin;
if (label != null)
{
CreateDLabel(dNode, label, out width, out height, viewer);
width += 2 * dNode.DrawingNode.Attr.LabelMargin + 2 * drawingNode.Attr.LineWidth;
height += 2 * dNode.DrawingNode.Attr.LabelMargin + 2 * drawingNode.Attr.LineWidth;
}
cluster.RectangularBoundary = new RectangularClusterBoundary()
{
BottomMargin = margin,
LeftMargin = margin,
RightMargin = margin,
TopMargin = height,
MinWidth = width
};
// Filippo Polo: I'm taking this out because I've modified the drawing of a double circle
// so that it can be used with ellipses too.
//if (drawingNode.Attr.Shape == Shape.DoubleCircle)
//width = height = Math.Max(width, height) * Draw.DoubleCircleOffsetRatio;
ICurve curve;
if (drawingNode.NodeBoundaryDelegate != null &&
(curve = drawingNode.NodeBoundaryDelegate(drawingNode)) != null)
{
geomNode.BoundaryCurve = curve;
}
else if (geomNode.BoundaryCurve == null)
{
geomNode.BoundaryCurve =
NodeBoundaryCurves.GetNodeBoundaryCurve(dNode.DrawingNode, width, height);
}
return(dNode);
}
internal static void SetNodeBoundaryCurve(DrawingGraph drawingGraph, DrawingNode drawingNode, DLabel existingLabel)
{
// Create the boundary curve. Note that a delegate may be allowed to create the curve (or replace it, if it already exists).
GeometryNode geomNode = drawingNode.GeometryNode;
if (geomNode == null)
return;
ICurve curve;
if (drawingNode.NodeBoundaryDelegate == null || (curve = drawingNode.NodeBoundaryDelegate(drawingNode)) == null)
{
// I need to know the node size, which may depend on a label.
double width = 0.0;
double height = 0.0;
if (existingLabel != null)
{
//existingLabel.MakeVisual();
width = existingLabel.Label.Width;
height = existingLabel.Label.Height;
width += 2 * drawingNode.Attr.LabelMargin;
height += 2 * drawingNode.Attr.LabelMargin;
}
else if (drawingNode.Label != null && drawingNode.Label.GeometryLabel != null)
{
// Measure the label's size (the only safe way is to instantiate it).
var dLabel = new DTextLabel(null, drawingNode.Label);
dLabel.MakeVisual();
width = dLabel.Label.Width;
height = dLabel.Label.Height;
// Add node label margin.
width += 2 * drawingNode.Attr.LabelMargin;
height += 2 * drawingNode.Attr.LabelMargin;
}
// Apply lower cap to node size
if (width < drawingGraph.Attr.MinNodeWidth)
width = drawingGraph.Attr.MinNodeWidth;
if (height < drawingGraph.Attr.MinNodeHeight)
height = drawingGraph.Attr.MinNodeHeight;
curve = NodeBoundaryCurves.GetNodeBoundaryCurve(drawingNode, width, height);
}
if (geomNode.BoundaryCurve != null)
curve.Translate(geomNode.BoundingBox.Center);
geomNode.BoundaryCurve = curve;
}
internal static DNode CreateDNodeAndSetNodeBoundaryCurve(Graph drawingGraph, DGraph dGraph, GeometryNode geomNode,
DrawingNode drawingNode, GViewer viewer){
double width = 0;
double height = 0;
var dNode = new DNode(drawingNode, viewer);
dGraph.AddNode(dNode);
Drawing.Label label = drawingNode.Label;
if (label != null){
CreateDLabel(dNode, label, out width, out height, viewer);
width += 2*dNode.DrawingNode.Attr.LabelMargin;
height += 2*dNode.DrawingNode.Attr.LabelMargin;
}
if (width < drawingGraph.Attr.MinNodeWidth)
width = drawingGraph.Attr.MinNodeWidth;
if (height < drawingGraph.Attr.MinNodeHeight)
height = drawingGraph.Attr.MinNodeHeight;
// Filippo Polo: I'm taking this out because I've modified the drawing of a double circle
// so that it can be used with ellipses too.
//if (drawingNode.Attr.Shape == Shape.DoubleCircle)
//width = height = Math.Max(width, height) * Draw.DoubleCircleOffsetRatio;
ICurve curve;
if (drawingNode.NodeBoundaryDelegate != null &&
(curve = drawingNode.NodeBoundaryDelegate(drawingNode)) != null)
geomNode.BoundaryCurve = curve;
else if (geomNode.BoundaryCurve == null)
geomNode.BoundaryCurve =
NodeBoundaryCurves.GetNodeBoundaryCurve(dNode.DrawingNode, width, height);
return dNode;
}
