private void CalculateLabelJustified(ScaleDiscreetItem item, Size textSize, double angle, int radius, Point centerPoint)
{
int num = radius + base.TextMargin;
Point point = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = Math2.TextRectangleAngular(textSize, point, base.TextMargin, angle);
}
private void CalculateLabelCenter(ScaleDiscreetItem item, Size textSize, double angle, int radius, Point centerPoint)
{
int num = radius + base.TextMargin + (int)Math.Abs(Math2.Cos(angle) * (double)textSize.Width / 2.0) + (int)Math.Abs(Math2.Sin(angle) * (double)textSize.Height / 2.0);
Point point = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = new Rectangle(point.X - textSize.Width / 2, point.Y - textSize.Height / 2, textSize.Width + 1, textSize.Height + 1);
}
public void DrawGradientCircle(Color color, Point centerPoint, int radius, bool mouseDown, float rotationAngle, bool reverse)
{
iColors.FaceColorFlat = iColors.Darken1(color);
if (mouseDown)
{
iColors.FaceColorFlat = iColors.Lighten2(iColors.FaceColorFlat);
}
Rectangle rect = new Rectangle(centerPoint.X - radius, centerPoint.Y - radius, radius * 2, radius * 2);
GraphicsPath graphicsPath = new GraphicsPath();
graphicsPath.AddEllipse(rect);
PathGradientBrush pathGradientBrush = new PathGradientBrush(graphicsPath);
pathGradientBrush.CenterColor = Color.White;
pathGradientBrush.SurroundColors = new Color[1]
{
iColors.FaceColorFlat
};
float num = 225f - rotationAngle;
pathGradientBrush.CenterPoint = Math2.ToRotatedPoint((double)num, (double)((float)radius * 0.67f), centerPoint);
this.FillPath(pathGradientBrush, graphicsPath);
pathGradientBrush.Dispose();
this.DrawEllipse(this.Pen(iColors.FaceColorFlat), rect);
}
public static Point[] ToRotatedPoints(double angle, Rectangle r)
{
Point[] array = new Point[4];
Point centerPoint = Math2.ToCenterPoint(r);
Point centerPoint2 = Math2.ToRotatedPoint(angle, (double)(r.Width / 2), centerPoint);
Point centerPoint3 = Math2.ToRotatedPoint(angle + 180.0, (double)(r.Width / 2), centerPoint);
array[0] = Math2.ToRotatedPoint(angle + 90.0, (double)(r.Height / 2), centerPoint2);
array[3] = Math2.ToRotatedPoint(angle - 90.0, (double)(r.Height / 2), centerPoint2);
array[1] = Math2.ToRotatedPoint(angle + 90.0, (double)(r.Height / 2), centerPoint3);
array[2] = Math2.ToRotatedPoint(angle - 90.0, (double)(r.Height / 2), centerPoint3);
return(array);
}
protected void UpdateGrabHandles(Rectangle r)
{
double centerX = (double)(r.Left + r.Right) / 2.0;
double centerY = (double)(r.Top + r.Bottom) / 2.0;
double num = (double)r.Width / 2.0;
double num2 = (double)r.Height / 2.0;
double num3 = Math.Atan2(num2, num) * 360.0 / 6.2831853071795862;
double radius = Math.Sqrt(num * num + num2 * num2);
this.GrabHandle0.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(180.0 + num3 + this.Rotation, radius, centerX, centerY));
this.GrabHandle1.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(270.0 + this.Rotation, num2, centerX, centerY));
this.GrabHandle2.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(0.0 - num3 + this.Rotation, radius, centerX, centerY));
this.GrabHandle3.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(0.0 + this.Rotation, num, centerX, centerY));
this.GrabHandle4.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(0.0 + num3 + this.Rotation, radius, centerX, centerY));
this.GrabHandle5.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(90.0 + this.Rotation, num2, centerX, centerY));
this.GrabHandle6.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(180.0 - num3 + this.Rotation, radius, centerX, centerY));
this.GrabHandle7.Rectangle = this.CalcGrabRect(Math2.ToRotatedPoint(180.0 + this.Rotation, num, centerX, centerY));
}
private void CalculateLabelCallout(ScaleDiscreetItem item, Size textSize, double angle, int radius, Point centerPoint)
{
int num = radius + base.TextMargin;
item.LinePoint1 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
if (angle == 0.0)
{
num += (int)(1.414 * (double)this.CallOutLength);
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint2, base.TextMargin, angle);
}
else if (angle == 180.0)
{
num += (int)(1.414 * (double)this.CallOutLength);
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint2, base.TextMargin, angle);
}
else if (angle == 90.0)
{
num += (int)(1.414 * (double)this.CallOutLength);
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint2, base.TextMargin, angle);
}
else if (angle == 270.0)
{
num += (int)(1.414 * (double)this.CallOutLength);
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint2, base.TextMargin, angle);
}
else if (angle > 90.0 && angle < 270.0)
{
num += this.CallOutLength;
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.LinePoint3 = Math2.ToRotatedPoint(180.0, (double)this.CallOutLength, item.LinePoint2);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint3, base.TextMargin, angle);
}
else
{
num += this.CallOutLength;
item.LinePoint2 = Math2.ToRotatedPoint(angle, (double)num, centerPoint);
item.LinePoint3 = Math2.ToRotatedPoint(0.0, (double)this.CallOutLength, item.LinePoint2);
item.TextRectangle = Math2.TextRectangleAngular(textSize, item.LinePoint3, base.TextMargin, angle);
}
}
private Point GetTickPoint(IScaleTickBase tick, float radius)
{
double angle = this.I_Range.ValueToAngle(tick.Value);
double num;
switch ((!(tick is ScaleTickMinor)) ? ((tick is ScaleTickMid) ? (tick as ScaleTickMid).Alignment : AlignmentStyle.Near) : (tick as ScaleTickMinor).Alignment)
{
case AlignmentStyle.Center:
num = (double)((float)(base.TickMajor.Length - tick.Length) / 2f);
break;
case AlignmentStyle.Far:
num = (double)(base.TickMajor.Length - tick.Length);
break;
default:
num = 0.0;
break;
}
return(Math2.ToRotatedPoint(angle, (double)(radius + (float)this.Margin) + num, this.CenterPoint));
}
protected override void Calculate(PaintArgs p, ScaleDiscreetItemCollection items, Point centerPoint, int activeIndex, int pointerExtent)
{
if (base.Visible)
{
DrawStringFormat genericTypographic = DrawStringFormat.GenericTypographic;
genericTypographic.LineAlignment = StringAlignment.Near;
genericTypographic.Alignment = StringAlignment.Near;
for (int i = 0; i < items.Count; i++)
{
Font font = (i != activeIndex) ? base.TextInactiveFont : base.TextActiveFont;
Size textSize = p.Graphics.MeasureString(items[i].Text, font, true);
double angle = this.ScaleRange.ValueToAngle(i, items.Count);
int num = pointerExtent + base.Margin;
if (base.Markers.Style != MarkerStyleLabel.None)
{
items[i].MarkerPoint = Math2.ToRotatedPoint(angle, (double)(num + base.Markers.Size), centerPoint);
num += 2 * base.Markers.Size;
}
items[i].LinePoint1 = Point.Empty;
items[i].LinePoint2 = Point.Empty;
items[i].LinePoint3 = Point.Empty;
if (this.TextAlignment == StringAlignmentDiscreetAngular.Center)
{
this.CalculateLabelCenter(items[i], textSize, angle, num, centerPoint);
}
else if (this.TextAlignment == StringAlignmentDiscreetAngular.CallOut)
{
this.CalculateLabelCallout(items[i], textSize, angle, num, centerPoint);
}
else if (this.TextAlignment == StringAlignmentDiscreetAngular.Justified)
{
this.CalculateLabelJustified(items[i], textSize, angle, num, centerPoint);
}
}
}
}
private Point GetScalePoint(double value, double radius)
{
double angle = this.I_Range.ValueToAngle(value);
return(Math2.ToRotatedPoint(angle, radius, this.CenterPoint));
}
