static internal void DrawEdge(Graphics graphics, DEdge dEdge, bool drawLabel)
{
DrawingEdge drawingEdge = dEdge.DrawingEdge;
if (drawingEdge.Attr.GeometryEdge == null)
{
return;
}
if (dEdge.GraphicsPath == null)
{
Draw.CreateGraphicsPath(dEdge);
}
EdgeAttr attr = drawingEdge.Attr;
using (Pen myPen = new Pen(dEdge.Color, attr.LineWidth)) {
foreach (Style style in attr.Styles)
{
Draw.AddStyleForPen(dEdge, myPen, style);
}
try {
graphics.DrawPath(myPen, dEdge.GraphicsPath);
} catch {
// sometimes on Vista it's just throws an out of memory exception without any obvious reason
}
Draw.DrawEdgeArrows(graphics, drawingEdge, dEdge.Color, myPen);
}
if (drawLabel)
{
Draw.DrawLabel(graphics, dEdge.Label);
}
}
protected override void OnPaint(PaintEventArgs e)
{
if (gViewer != null && gViewer.Graph != null && gViewer.Graph.GeometryGraph != null)
{
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.TextRenderingHint = TextRenderingHint.AntiAlias;
gViewer.ProcessOnPaint(e.Graphics, null);
}
if (CurrentRubberEdge != null)
{
using (GraphicsPath gp = Draw.CreateGraphicsPath(CurrentRubberEdge.Curve))
using (var pen = new Pen(Brushes.Black, (float)GViewer.LineThicknessForEditing))
e.Graphics.DrawPath(pen, gp);
}
if (DrawingRubberEdge)
{
e.Graphics.DrawLine(new Pen(Brushes.Black, (float)GViewer.LineThicknessForEditing),
(float)rubberLineStart.X, (float)rubberLineStart.Y, (float)RubberLineEnd.X,
(float)RubberLineEnd.Y);
}
base.OnPaint(e); // Filippo Polo 13/11/07; if I don't do this, onpaint events won't be invoked
gViewer.RaisePaintEvent(e);
}
internal static void DrawEdge(Graphics graphics, DEdge dEdge)
{
DrawingEdge drawingEdge = dEdge.DrawingEdge;
if (!drawingEdge.IsVisible || drawingEdge.GeometryEdge == null)
{
return;
}
DrawingEdge edge = dEdge.DrawingEdge;
if (edge.DrawEdgeDelegate != null)
{
if (edge.DrawEdgeDelegate(edge, graphics))
{
return; //the client draws instead
}
}
if (dEdge.GraphicsPath == null)
{
dEdge.GraphicsPath = Draw.CreateGraphicsPath(dEdge.Edge.GeometryEdge.Curve);
}
EdgeAttr attr = drawingEdge.Attr;
using (var myPen = new Pen(dEdge.Color, (float)attr.LineWidth))
{
foreach (Style style in attr.Styles)
{
Draw.AddStyleForPen(dEdge, myPen, style);
}
try
{
if (dEdge.GraphicsPath != null)
{
graphics.DrawPath(myPen, dEdge.GraphicsPath);
}
}
catch
{
// sometimes on Vista it throws an out of memory exception without any obvious reason
}
Draw.DrawEdgeArrows(graphics, drawingEdge, dEdge.Color, myPen);
if (dEdge.DrawingEdge.GeometryEdge.Label != null)
{
Draw.DrawLabel(graphics, dEdge.Label);
}
#if TEST_MSAGL
if (DrawControlPoints)
{
ICurve iCurve = dEdge.DrawingEdge.GeometryEdge.Curve;
var c = iCurve as Curve;
if (c != null)
{
foreach (ICurve seg in c.Segments)
{
var cubic = seg as CubicBezierSegment;
if (cubic != null)
{
Draw.DrawControlPoints(graphics, cubic);
}
}
}
else
{
var seg = iCurve as CubicBezierSegment;
if (seg != null)
{
Draw.DrawControlPoints(graphics, seg);
}
}
}
#endif
}
}
