void CreateNodeGeometry(DrawingNode node, Graph graph, GeometryGraph geometryGraph, GeometryPoint center, ConnectionToGraph connectionTo = ConnectionToGraph.Connected)
{
double width, height;
StringMeasure.MeasureWithFont(node.Label.Text, new Font(node.Label.FontName, (float)node.Label.FontSize, (System.Drawing.FontStyle)(int) node.Label.FontStyle), out width,
out height);
node.Label.Width = width;
node.Label.Height = height;
if (node.Label != null)
{
width += 2 * node.Attr.LabelMargin;
height += 2 * node.Attr.LabelMargin;
}
if (width < graph.Attr.MinNodeWidth)
{
width = graph.Attr.MinNodeWidth;
}
if (height < graph.Attr.MinNodeHeight)
{
height = graph.Attr.MinNodeHeight;
}
Node geomNode =
node.GeometryNode =
GeometryGraphCreator.CreateGeometryNode(graph, geometryGraph, node, connectionTo);
geomNode.BoundaryCurve = NodeBoundaryCurves.GetNodeBoundaryCurve(node, width, height);
geomNode.BoundaryCurve.Translate(center);
geomNode.Center = center;
}
public static IViewerNode addVnodeByDnode(GraphViewer gv, Node node, DPoint pos)
{
var graph = gv.Graph;
Debug.Assert(node.GeometryNode == null);
LNode lnode = GeometryGraphCreator.CreateGeometryNode(graph, graph.GeometryGraph, node, ConnectionToGraph.Disconnected);
var labelSize = Common.MeasureLabel(node.Label);
var mar = node.Attr.LabelMargin;
lnode.BoundaryCurve = NodeBoundaryCurves.GetNodeBoundaryCurve(node, labelSize.Width + mar * 2, labelSize.Height + mar * 2);
node.GeometryNode = lnode;
var vnode = gv.CreateIViewerNode(node, pos, null);
return(vnode);
}
public static IViewerNode addNode(GraphViewer gv, string id, double x, double y)
{
//var node = new Node(id);
var graph = gv.Graph;
var node = graph.AddNode(id);
var lnode = GeometryGraphCreator.CreateGeometryNode(graph, graph.GeometryGraph, node, ConnectionToGraph.Disconnected);
var labelSize = Common.MeasureLabel(node.Label);
lnode.BoundaryCurve = NodeBoundaryCurves.GetNodeBoundaryCurve(node, labelSize.Width, labelSize.Height);
node.GeometryNode = lnode;
var vnode = gv.CreateIViewerNode(node, new DPoint(x, y), null);
return(vnode);
//gv.AddNode(vnode, true);
//gv.CreateVNode(node);
}
void InsertNodeIntoGraph(Rectangle rectangle)
{
Node node = new Node("testNode");
node.Attr.FillColor = Color.Red;
node.Attr.Shape = Shape.DrawFromGeometry;
node.Label = null;
var geomNode =
node.GeometryNode = GeometryGraphCreator.CreateGeometryNode(gViewer.Graph, gViewer.Graph.GeometryGraph, node, ConnectionToGraph.Disconnected);
var center = (rectangle.LeftBottom + rectangle.RightTop) / 2;
geomNode.BoundaryCurve = CurveFactory.CreateRectangle(rectangle.Width, rectangle.Height, center);
node.GeometryNode = geomNode;
var dNode = gViewer.CreateIViewerNode(node);
gViewer.AddNode(dNode, true);
}
private void InitPalette()
{
foreach (var type in this.graph.GetNodeTypes())
{
var button = new Button {
Text = type.Name, Dock = DockStyle.Bottom
};
button.Click += (sender, args) =>
{
var node = this.graph.CreateNewNode(type);
node.GeometryNode = GeometryGraphCreator.CreateGeometryNode(this.viewer.Graph, this.viewer.Graph.GeometryGraph, node, ConnectionToGraph.Disconnected);
var viewNode = this.viewer.CreateIViewerNode(node, this.viewer.Graph.Nodes.ToList()[0].Pos - new Point(250, 0), null);
this.viewer.AddNode(viewNode, true);
this.viewer.Graph.AddNode(node);
this.viewer.Invalidate();
};
button.Font = new Font(button.Font.FontFamily, fontSize);
button.Size = new Size(button.Width, button.Height + 10);
this.paletteGrid.Controls.Add(button, 0, this.paletteGrid.RowCount - 1);
++this.paletteGrid.RowCount;
}
}
public static IViewerNode addNodeWithStyles(GraphViewer gv, string id, DPoint pos, ICollection <Style> styles)
{
var graph = gv.Graph;
var node = graph.AddNode(id);
if (styles != null)
{
foreach (var s in styles)
{
node.Attr.AddStyle(s);
}
}
var lnode = GeometryGraphCreator.CreateGeometryNode(graph, graph.GeometryGraph, node, ConnectionToGraph.Disconnected);
var labelSize = Common.MeasureLabel(node.Label);
var mar = node.Attr.LabelMargin;
lnode.BoundaryCurve = NodeBoundaryCurves.GetNodeBoundaryCurve(node, labelSize.Width + mar * 2, labelSize.Height + mar * 2);
node.GeometryNode = lnode;
var vnode = gv.CreateIViewerNode(node, pos, null);
return(vnode);
}
