public Brush CreateGradientBrush(RadialGaugeArc owner)
{
float num = (float)owner.OutherRadiusPercentage;
if ((double)num == 0.0)
{
num = (float)(owner.Owner.LabelRadius - owner.Owner.LabelGap);
}
switch (owner.NumberOfColors)
{
case 1:
return((Brush) new SolidBrush(owner.BackColor));
case 2:
return((Brush) new GdiRadialGradientBrush(owner.Owner.GaugeCenter, num, num, new GradientStop[4] {
new GradientStop(owner.BackColor, 0.0f), new GradientStop(owner.BackColor2, owner.GradientPercentage), new GradientStop(owner.BackColor, owner.GradientPercentage2), new GradientStop(owner.BackColor, 1f)
}).RawBrush);
case 3:
return((Brush) new GdiRadialGradientBrush(owner.Owner.GaugeCenter, num, num, new GradientStop[4] {
new GradientStop(owner.BackColor, 0.0f), new GradientStop(owner.BackColor2, owner.GradientPercentage), new GradientStop(owner.BackColor3, owner.GradientPercentage2), new GradientStop(owner.BackColor2, 1f)
}).RawBrush);
case 4:
return((Brush) new GdiRadialGradientBrush(owner.Owner.GaugeCenter, num, num, new GradientStop[4] {
new GradientStop(owner.BackColor, 0.0f), new GradientStop(owner.BackColor2, owner.GradientPercentage), new GradientStop(owner.BackColor3, owner.GradientPercentage2), new GradientStop(owner.BackColor3, 1f)
}).RawBrush);
default:
return((Brush) new SolidBrush(owner.BackColor));
}
}
public Brush CreateBrush(GaugeVisualElement owner, GaugeBrushType type)
{
RadialGaugeArc owner1 = owner as RadialGaugeArc;
if (owner1 == null)
{
return((Brush)null);
}
switch (type)
{
case GaugeBrushType.Rainbow:
return(this.CreateRainbowBrush(owner1));
case GaugeBrushType.Rainbow2:
return(this.CreateRainbow2Brush(owner1));
case GaugeBrushType.Rainbow3:
return(this.CreateRainbow3Brush(owner1));
case GaugeBrushType.Gradient:
return(this.CreateGradientBrush(owner1));
default:
return(this.CreateRainbowBrush(owner1));
}
}
public Brush CreateRainbow2Brush(RadialGaugeArc owner)
{
float num = (float)(owner.Owner.LabelRadius - owner.Owner.LabelGap);
List <PointF> pointFList = new List <PointF>(0);
PointF pointF1 = new PointF(num + 10f, 0.0f);
for (float startAngle = (float)owner.startAngle; (double)startAngle < owner.endAngle; ++startAngle)
{
Matrix matrix = new Matrix();
matrix.Rotate(startAngle);
PointF[] pts = new PointF[1] {
pointF1
};
matrix.TransformPoints(pts);
PointF pointF2 = new PointF(owner.Owner.GaugeCenter.X + pts[0].X, owner.Owner.GaugeCenter.Y + pts[0].Y);
pointFList.Add(pointF2);
}
PathGradientBrush pathGradientBrush = new PathGradientBrush(pointFList.ToArray());
pathGradientBrush.CenterColor = Color.Transparent;
pathGradientBrush.CenterPoint = owner.Owner.GaugeCenter;
Color[] baseColors = new Color[4] {
Color.Green, Color.Yellow, Color.Red, Color.Magenta
};
double[] colorFactors = new double[4] {
0.0, 0.5, 0.9, 1.0
};
Color[] colorArray = new Color[pointFList.Count];
for (int index = 0; index < pointFList.Count; ++index)
{
Color color = BrushFactory.GetColor(Math.Abs(Math.Atan2((double)pointFList[index].Y - (double)owner.Owner.GaugeCenter.Y, (double)pointFList[index].X - (double)owner.Owner.GaugeCenter.X)) / Math.PI, baseColors, colorFactors);
colorArray[index] = color;
}
pathGradientBrush.SurroundColors = colorArray;
return((Brush)pathGradientBrush);
}