private void DrawGradientItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
e.DrawBackground();
if (e.Index >= 0 && e.Index < Gradients.List.Count)
{
IGradient g = Gradients.List[e.Index];
GradientPainter.FillRectangle(e.Graphics, g, e.Bounds, GradientPainter.Direction.Right);
}
e.DrawFocusRectangle();
}
/// <summary>
/// Draws a z-<see cref="Scale">Scale</see> for a <see cref="Plot2D">2D Plot</see>.
/// </summary>
/// <param name="g">The <see cref="Graphics"/> to paint to</param>
/// <param name="Model">The <see cref="PlotModel"/> of the Plot</param>
/// <param name="v">The orientation of the scale</param>
/// <param name="draw">If false, the scale is not drawn only is extensions are measured</param>
/// <param name="r">The rectangle where the z-gradient is drawn inside</param>
/// <param name="norms">The extensions of the painting</param>
public static void DrawZScale(Graphics g, PlotModel Model, ref PointF[] v, bool draw, Rectangle r, ref Norms norms)
{
Function2DItem f = Model.GetPaintableItem() as Function2DItem;
if (Model.z.scale && f != null)
{
Model.z.oppositeRaster = Model.z.oppositeLine = false;
Model.z.scaleOutside = Model.z.rasterOutside = false;
if (draw)
{
GradientPainter.FillRectangle(g, f.Gradient, r, GradientPainter.Direction.Up);
Pen pen = new Pen(Model.ScaleColor, Model.ScaleLineWidth);
g.DrawRectangle(pen, r);
}
SizeF size = g.MeasureString("0.5", Model.ScaleFont);
float s0 = Math.Max(1, size.Height);
v[0] = new PointF(r.X + r.Width, r.Y + r.Height);
v[1] = new PointF(r.X + r.Width, r.Y);
v[2] = new PointF(r.X + r.Width + s0, r.Y + r.Height);
DrawScale(g, v, Model, Model.z, draw, ref norms);
}
}
