/// <summary>
/// Draw the node on a panel surface.
/// </summary>
/// <param name="surface">Surface to draw on.</param>
internal void Draw(DrawingSurface2D surface)
{
if (this.Position.Width > 0)
{
// Fill colors in bands from left to right
double offset = 0;
foreach (Tuple <double, Color> band in this.FillColors)
{
if (band.Item1 <= 0)
{
continue;
}
Color c = band.Item2;
var brush = new SolidBrush(c);
Point2D left = new Point2D(this.Position.Corner1.X + offset * this.Position.Width, this.Position.Corner1.Y);
offset += band.Item1;
Point2D right = new Point2D(this.Position.Corner1.X + offset * this.Position.Width, this.Position.Corner2.Y);
surface.FillRectangle(brush, new Rectangle2D(left, right));
}
Font font = new Font("Arial", 12, FontStyle.Regular);
// let's shrink the position for the text to leave some border
if (this.Label != null)
{
const double borderFraction = 8; // reserve 1/8 of the rectangle for border
Rectangle2D box = new Rectangle2D(
this.Position.Corner1.Translate(this.Position.Width / borderFraction, this.Position.Height / borderFraction),
this.Position.Corner2.Translate(-this.Position.Width / borderFraction, -this.Position.Height / borderFraction));
surface.DrawTextInRectangle(this.Label, Brushes.Black, font, box);
}
}
Pen pen = this.Selected ? thickBlackPen : blackPen;
switch (this.Shape)
{
default:
case NodeShape.Box:
surface.DrawRectangle(this.Position, pen);
break;
case NodeShape.Ellipse:
surface.DrawEllipse(this.LineColor, this.Position, pen, false);
break;
case NodeShape.Invhouse:
{
Point2D[] points = new Point2D[5];
points[0] = new Point2D(this.Position.Corner1.X, this.Position.Corner1.Y + this.Position.Height / 3);
points[1] = new Point2D(this.Position.Corner1.X, this.Position.Corner2.Y - this.Position.Height / 8);
points[2] = new Point2D(this.Position.Corner2.X, this.Position.Corner2.Y - this.Position.Height / 8);
points[3] = new Point2D(this.Position.Corner2.X, this.Position.Corner1.Y + this.Position.Height / 3);
points[4] = new Point2D(this.Position.Corner1.X + this.Position.Width / 2, this.Position.Corner1.Y);
surface.DrawPolygon(this.LineColor, points, pen, false);
break;
}
}
}
/// <summary>
/// Draw the node on a panel surface.
/// </summary>
/// <param name="surface">Surface to draw on.</param>
internal void Draw(DrawingSurface2D surface)
{
if (this.Position.Width > 0)
{
// Fill colors in bands from left to right
double offset = 0;
foreach (Tuple<double, Color> band in this.FillColors)
{
if (band.Item1 <= 0)
continue;
Color c = band.Item2;
var brush = new SolidBrush(c);
Point2D left = new Point2D(this.Position.Corner1.X + offset * this.Position.Width, this.Position.Corner1.Y);
offset += band.Item1;
Point2D right = new Point2D(this.Position.Corner1.X + offset * this.Position.Width, this.Position.Corner2.Y);
surface.FillRectangle(brush, new Rectangle2D(left, right));
}
Font font = new Font("Arial", 12, FontStyle.Regular);
// let's shrink the position for the text to leave some border
if (this.Label != null)
{
const double borderFraction = 8; // reserve 1/8 of the rectangle for border
Rectangle2D box = new Rectangle2D(
this.Position.Corner1.Translate(this.Position.Width / borderFraction, this.Position.Height / borderFraction),
this.Position.Corner2.Translate(-this.Position.Width / borderFraction, -this.Position.Height / borderFraction));
surface.DrawTextInRectangle(this.Label, Brushes.Black, font, box);
}
}
Pen pen = this.Selected ? thickBlackPen : blackPen;
switch (this.Shape)
{
default:
case NodeShape.Box:
surface.DrawRectangle(this.Position, pen);
break;
case NodeShape.Ellipse:
surface.DrawEllipse(this.LineColor, this.Position, pen, false);
break;
case NodeShape.Invhouse:
{
Point2D[] points = new Point2D[5];
points[0] = new Point2D(this.Position.Corner1.X, this.Position.Corner1.Y + this.Position.Height / 3);
points[1] = new Point2D(this.Position.Corner1.X, this.Position.Corner2.Y - this.Position.Height / 8);
points[2] = new Point2D(this.Position.Corner2.X, this.Position.Corner2.Y - this.Position.Height / 8);
points[3] = new Point2D(this.Position.Corner2.X, this.Position.Corner1.Y + this.Position.Height / 3);
points[4] = new Point2D(this.Position.Corner1.X + this.Position.Width / 2, this.Position.Corner1.Y);
surface.DrawPolygon(this.LineColor, points, pen, false);
break;
}
}
}
