public override void MakeVisual()
{
if (GeometryNode.BoundaryCurve == null)
{
return;
}
SetValue(Canvas.LeftProperty, Node.BoundingBox.Left);
SetValue(Canvas.TopProperty, Node.BoundingBox.Bottom);
// Note that Draw.CreateGraphicsPath returns a curve with coordinates in graph space.
var pathFigure = Draw.CreateGraphicsPath((DrawingNode.GeometryNode).BoundaryCurve);
pathFigure.IsFilled = Node.Attr.FillColor != Drawing.Color.Transparent;
var pathGeometry = new PathGeometry();
pathGeometry.Figures.Add(pathFigure);
// Apply a translation to bring the coordinates in node space (i.e. top left corner is 0,0).
pathGeometry.Transform = new TranslateTransform()
{
X = -Node.BoundingBox.Left, Y = -Node.BoundingBox.Bottom
};
// I'm using the max of my LineWidth and MSAGL's LineWidth; this way, when the MSAGL bug is fixed (see below), my workaround shouldn't
// interfere with the fix.
var path = new Path()
{
Data = pathGeometry,
StrokeThickness = Math.Max(LineWidth, Node.Attr.LineWidth),
Stroke = BoundaryBrush,
Fill = new SolidColorBrush(Draw.MsaglColorToDrawingColor(Node.Attr.FillColor))
};
Content = path;
}
public override void MeasureLabel()
{
if (Label.Text != null && Label.Text.Length > 0)
{
TextBlock tb = new TextBlock();
tb.FontFamily = new FontFamily(Label.FontName);
tb.FontSize = Label.FontSize;
tb.Foreground = Label.FontColor == Microsoft.Msagl.Drawing.Color.Black ? DGraph.BlackBrush : new SolidColorBrush(Draw.MsaglColorToDrawingColor(Label.FontColor));
tb.Text = Label.Text;
tb.TextAlignment = TextAlignment.Center;
tb.VerticalAlignment = VerticalAlignment.Center;
Content = tb;
}
base.MeasureLabel();
}
public override void MakeVisual()
{
if (Label.Text != null && Label.Text.Length > 0)
{
TextBlock tb = new TextBlock();
tb.FontFamily = new FontFamily(Label.FontName);
tb.FontSize = Label.FontSize;
tb.Foreground = Label.FontColor == Microsoft.Msagl.Drawing.Color.Black ? DGraph.BlackBrush : new SolidColorBrush(Draw.MsaglColorToDrawingColor(Label.FontColor));
tb.Text = Label.Text;
tb.TextAlignment = TextAlignment.Center;
tb.VerticalAlignment = VerticalAlignment.Center;
Content = tb;
Label.Width = Width = tb.ActualWidth;
Label.Height = Height = tb.ActualHeight;
}
else
{
Label.Width = Width = 0.0;
Label.Height = Height = 0.0;
}
if (Label.GeometryLabel != null)
{
Label.GeometryLabel.Width = Math.Max(1.0, Label.Width);
Label.GeometryLabel.Height = Math.Max(1.0, Label.Height);
}
CenterLabel();
}
