////////////////////////////////////////////////////
#region Visual
/// <summary>
/// Creates a visual which renders the edge.
/// </summary>
/// <remarks>
/// Creates a VisualGroup which contains the actual edge rendering visual and
/// the visuals which represent the arrows.
/// </remarks>
/// <param name="context">The render context.</param>
/// <param name="edge">The edge to render.</param>
/// <returns>A visual which renders the edge.</returns>
protected override VisualGroup CreateVisual(IRenderContext context, IEdge edge)
{
var color = GetColor(context, edge);
var group = new VisualGroup();
// Create the path to be drawn
GeneralPath gp = GetPath(edge);
var edgeVisual = new EdgeVisual();
edgeVisual.Update(gp, PathThickness, color);
group.Add(edgeVisual);
// add arrow visuals to the group
AddArrows(context, group, edge, gp, Arrows, Arrows);
return(group);
}
/// <summary>
/// Creates a visual which renders the edge.
/// </summary>
/// <remarks>
/// Creates a VisualGroup which contains the actual edge rendering visual and
/// the visuals which represent the arrows.
/// </remarks>
/// <param name="context">The render context.</param>
/// <param name="edge">The edge to render.</param>
/// <returns>A visual which renders the edge.</returns>
protected override VisualGroup CreateVisual(IRenderContext context, IEdge edge)
{
var color = GetColor(context, edge);
var group = new VisualGroup();
//////////////// New in this sample ////////////////
// the cached path is updated with bridges (if there are any)
GeneralPath gp = CreatePathWithBridges(GetPath(edge), context);
////////////////////////////////////////////////////
var edgeVisual = new EdgeVisual();
edgeVisual.Update(gp, PathThickness, color);
group.Add(edgeVisual);
// add arrow visuals to the group
AddArrows(context, group, edge, gp, Arrows, Arrows);
return(group);
}
protected override VisualGroup CreateVisual(IRenderContext context, IEdge edge)
{
bool selected = false;
// Check if edge is selected
var graphControl = context.CanvasControl as GraphControl;
if (graphControl != null)
{
selected = graphControl.Selection.SelectedEdges.IsSelected(edge);
}
// Get default color from MySimpleNodeStyle
Color color = MySimpleNodeStyle.Color;
// Check if the ownernode has stored a color in it's tag
INode owner = edge.SourcePort.Owner as INode;
if (!selected && owner != null)
{
if (owner.Tag is Color)
{
color = (Color)owner.Tag;
}
}
else if (selected)
{
// if edge is selected, draw with different color
color = Color.DarkGoldenrod;
}
var group = new VisualGroup();
// Create the path to be drawn
GeneralPath gp = GetPath(edge);
var edgeVisual = new EdgeVisual();
edgeVisual.Update(gp, PathThickness, color);
group.Add(edgeVisual);
AddArrows(context, group, edge, gp, Arrows, Arrows);
return(group);
}