/// <summary>Draws a ribbon.</summary>
public void DrawRibbon(Context cr, Gdk.Rectangle bodyAllocation, double roundSize, double lineWidth, Ribbon widget)
{
double lineWidth05 = lineWidth / 2;
double lineWidth15 = 3 * lineWidth05;
double x0, x1, y0, y1;
LinearGradient linGrad;
Ribbon.RibbonPage p = widget.CurrentPage;
if (p != null)
{
//Color c = ColorScheme.GetColor(colorScheme.Bright, 0.92);
Color c = colorScheme.Normal;
if (bodyAllocation.Height > 0)
{
/*** PAGE ***/
x0 = bodyAllocation.X; x1 = bodyAllocation.X + bodyAllocation.Width;
y0 = bodyAllocation.Y; y1 = bodyAllocation.Y + bodyAllocation.Height;
cr.Arc(x0 + roundSize, y1 - roundSize, roundSize - lineWidth05, Math.PI / 2, Math.PI);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize - lineWidth05, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize - lineWidth05, 3 * Math.PI / 2, 0);
cr.Arc(x1 - roundSize, y1 - roundSize, roundSize - lineWidth05, 0, Math.PI / 2);
cr.LineTo(x0 + roundSize, y1 - lineWidth05);
/*** BACKGOUND ***/
cr.Color = c;
cr.FillPreserve();
/*** DARK BORDER ***/
cr.LineWidth = lineWidth;
cr.Color = ColorScheme.GetColorAbsolute(colorScheme.Normal, 0.75);
cr.Stroke();
/*** GLASS EFFECT ***/
double ymid = Math.Round(y0 + (y1 - y0) * 0.25);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize - lineWidth, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize - lineWidth, 3 * Math.PI / 2, 0);
cr.LineTo(x1 - lineWidth, ymid);
cr.LineTo(x0 + lineWidth, ymid);
cr.LineTo(x0 + lineWidth, y0 + roundSize);
linGrad = new LinearGradient(0, y0, 0, ymid);
linGrad.AddColorStop(0.0, new Color(0, 0, 0, 0.0));
linGrad.AddColorStop(1.0, new Color(0, 0, 0, 0.075));
cr.Pattern = linGrad;
cr.Fill();
cr.Arc(x0 + roundSize, y1 - roundSize, roundSize - lineWidth, Math.PI / 2, Math.PI);
cr.LineTo(x0 + lineWidth, ymid);
cr.LineTo(x1 - lineWidth, ymid);
cr.Arc(x1 - roundSize, y1 - roundSize, roundSize - lineWidth, 0, Math.PI / 2);
cr.LineTo(x0 + roundSize, y1 - lineWidth);
linGrad = new LinearGradient(0, ymid, 0, y1);
linGrad.AddColorStop(0.0, new Color(0, 0, 0, 0.1));
linGrad.AddColorStop(0.5, new Color(0, 0, 0, 0.0));
cr.Pattern = linGrad;
cr.Fill();
}
/*** TAB ***/
Gdk.Rectangle r = p.LabelAllocation;
x0 = r.X; x1 = r.X + r.Width;
y0 = r.Y; y1 = r.Y + r.Height + lineWidth;
/*** TAB :: BACKGROUND ***/
cr.MoveTo(x0 + lineWidth05, y1);
cr.LineTo(x0 + lineWidth05, y0 + roundSize);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize - lineWidth05, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize - lineWidth05, 3 * Math.PI / 2, 0);
cr.LineTo(x1 - lineWidth05, y1);
linGrad = new LinearGradient(0, y0, 0, y1);
linGrad.AddColorStop(0.0, colorScheme.PrettyBright);
linGrad.AddColorStop(1.0, c);
cr.Pattern = linGrad;
cr.Fill();
/*** TAB :: DARK BORDER ***/
cr.MoveTo(x0 + lineWidth05, y1);
cr.LineTo(x0 + lineWidth05, y0 + roundSize);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize - lineWidth05, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize - lineWidth05, 3 * Math.PI / 2, 0);
cr.LineTo(x1 - lineWidth05, y1);
cr.LineWidth = lineWidth;
cr.Color = ColorScheme.GetColorRelative(colorScheme.Bright, -0.1);
cr.Stroke();
y1 -= 1.0;
/*** TAB :: HIGHLIGHT ***/
cr.MoveTo(x0 + lineWidth15, y1);
cr.LineTo(x0 + lineWidth15, y0 + roundSize);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize - lineWidth15, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize - lineWidth15, 3 * Math.PI / 2, 0);
cr.LineTo(x1 - lineWidth15, y1);
cr.LineWidth = lineWidth;
linGrad = new LinearGradient(0, y0 + lineWidth, 0, y1);
linGrad.AddColorStop(0.0, colorScheme.PrettyBright);
linGrad.AddColorStop(1.0, ColorScheme.SetAlphaChannel(colorScheme.Bright, 0));
cr.Pattern = linGrad;
cr.Stroke();
/*** TAB :: SHADOW ***/
cr.MoveTo(x0 - lineWidth05, y1);
cr.LineTo(x0 - lineWidth05, y0 + roundSize);
cr.Arc(x0 + roundSize, y0 + roundSize, roundSize + lineWidth05, Math.PI, 3 * Math.PI / 2);
cr.Arc(x1 - roundSize, y0 + roundSize, roundSize + lineWidth05, 3 * Math.PI / 2, 0);
cr.LineTo(x1 + lineWidth05, y1);
cr.LineWidth = lineWidth;
cr.Color = new Color(0, 0, 0, 0.2);
cr.Stroke();
}
}
