private void DrawText(FRPaintEventArgs e, string text, Brush brush, float x, float y, HorAlign hAlign, VertAlign vAlign)
{
Graphics g = e.Graphics;
Font font = RadialUtils.GetFont(e, Parent, Font);
SizeF strSize = RadialUtils.GetStringSize(e, Parent, Font, text);
float dx = 0;
float dy = 0;
if (hAlign == HorAlign.Middle)
{
dx = -strSize.Width / 2;
}
else if (hAlign == HorAlign.Left)
{
dx = 0;
}
else if (hAlign == HorAlign.Right)
{
dx = -strSize.Width;
}
if (vAlign == VertAlign.Bottom)
{
dy = -strSize.Height;
}
else if (vAlign == VertAlign.Middle)
{
dy = -strSize.Height / 2;
}
else if (vAlign == VertAlign.Top)
{
dy = 0;
}
g.DrawString(text, font, brush, x + dx, y + dy);
}
public override void Draw(FRPaintEventArgs e)
{
if ((Parent as RadialGauge).Type == RadialGaugeType.Circle)
{
base.Draw(e);
float x = (Parent.AbsLeft + Parent.Border.Width / 2) * e.ScaleX;
float y = (Parent.AbsTop + Parent.Border.Width / 2) * e.ScaleY;
float dx = (Parent.Width - Parent.Border.Width) * e.ScaleX - 1;
float dy = (Parent.Height - Parent.Border.Width) * e.ScaleY - 1;
PointF lblPt = new PointF(x + dx / 2, y + dy - ((Parent.Scale as RadialScale).AvrTick.Y - y));
SizeF txtSize = RadialUtils.GetStringSize(e, Parent, Font, Text);
Font font = RadialUtils.GetFont(e, Parent, Font);
Brush brush = e.Cache.GetBrush(Color);
e.Graphics.DrawString(Text, font, brush, lblPt.X - txtSize.Width / 2, lblPt.Y - txtSize.Height / 2);
}
}
private void DrawMajorTicks(FRPaintEventArgs e)
{
center = (Parent as RadialGauge).Center;
stepValue = (Parent.Maximum - Parent.Minimum) / (MajorTicks.Count - 1);
if (RadialUtils.IsQuadrant(Parent))
{
stepValue *= 2;
}
avrValue = Parent.Minimum + (Parent.Maximum - Parent.Minimum) / 2;
bool isRightPart = true;
bool isLeftPart = false;
PointF txtPoint;
Graphics g = e.Graphics;
Pen pen = e.Cache.GetPen(MajorTicks.Color, MajorTicks.Width * e.ScaleX, DashStyle.Solid);
Brush brush = TextFill.CreateBrush(new RectangleF(Parent.AbsLeft * e.ScaleX, Parent.AbsTop * e.ScaleY,
Parent.Width * e.ScaleX, Parent.Height * e.ScaleY), e.ScaleX, e.ScaleY);
sideTicksCount = (MajorTicks.Count - 1) / 2;
MajorTicks.Length = width / 12;
SizeF maxTxt = RadialUtils.GetStringSize(e, Parent, Font, Parent.Maximum.ToString());
SizeF minTxt = RadialUtils.GetStringSize(e, Parent, Font, Parent.Minimum.ToString());
float maxTxtOffset = maxTxt.Height > maxTxt.Width ? maxTxt.Height : maxTxt.Width;
float minTxtOffset = minTxt.Height > minTxt.Width ? minTxt.Height : minTxt.Width;
majorTicksOffset = maxTxtOffset > minTxtOffset ? maxTxtOffset : minTxtOffset;
PointF[] tick0 = new PointF[2];
avrTick = new PointF(left + width / 2, top + majorTicksOffset);
//first tick
tick0[0] = avrTick;
tick0[1] = new PointF(tick0[0].X, tick0[0].Y + MajorTicks.Length);
double angle = 0;
HorAlign horAlign = HorAlign.Middle;
VertAlign vertAlign = VertAlign.Bottom;
double startValue = avrValue;
if (RadialUtils.IsSemicircle(Parent))
{
drawRight = true;
drawLeft = true;
if (RadialUtils.IsBottom(Parent))
{
angle = 180 * RadialGauge.Radians;
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Top;
majorStep *= -1;
isRightPart = true;
isLeftPart = false;
}
else if (RadialUtils.IsLeft(Parent))
{
angle = -90 * RadialGauge.Radians;
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
isRightPart = false;
isLeftPart = false;
}
else if (RadialUtils.IsRight(Parent))
{
angle = 90 * RadialGauge.Radians;
horAlign = HorAlign.Left;
vertAlign = VertAlign.Middle;
majorStep *= -1;
isRightPart = true; //false
isLeftPart = true; // false
}
}
else if (RadialUtils.IsQuadrant(Parent))
{
if (RadialUtils.IsTop(Parent) && RadialUtils.IsLeft(Parent))
{
startValue = Parent.Maximum;
//angle = 180 * RadialGauge.Radians;
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Bottom;
//majorStep *= -1;
//isRightPart = true;
//isLeftPart = false;
drawRight = false;
drawLeft = true;
isRightPart = false;
isLeftPart = false;
}
else if (RadialUtils.IsBottom(Parent) && RadialUtils.IsLeft(Parent))
{
startValue = Parent.Minimum;
angle = 180 * RadialGauge.Radians;
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Top;
drawRight = true;
drawLeft = false;
isRightPart = false;
isLeftPart = false;
}
else if (RadialUtils.IsTop(Parent) && RadialUtils.IsRight(Parent))
{
stepValue *= -1;
startValue = Parent.Maximum;
angle = 0;
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Bottom;
drawRight = true;
drawLeft = false;
isRightPart = true;
isLeftPart = true;
}
else if (RadialUtils.IsBottom(Parent) && RadialUtils.IsRight(Parent))
{
stepValue *= -1;
startValue = Parent.Minimum;
angle = 180 * RadialGauge.Radians;
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Top;
drawRight = false;
drawLeft = true;
isRightPart = true;
isLeftPart = true;
}
}
else
{
drawRight = true;
drawLeft = true;
}
tick0 = RadialUtils.RotateVector(tick0, angle, center);
g.DrawLine(pen, tick0[0].X, tick0[0].Y, tick0[1].X, tick0[1].Y);
string text = startValue.ToString();
DrawText(e, text, brush, tick0[0].X, tick0[0].Y, horAlign, vertAlign);
//rest of ticks
PointF[] tick = new PointF[2];
angle = majorStep * RadialGauge.Radians;
for (int i = 0; i < sideTicksCount; i++)
{
//right side
if (drawRight)
{
tick = RadialUtils.RotateVector(tick0, angle, center);
g.DrawLine(pen, tick[0].X, tick[0].Y, tick[1].X, tick[1].Y);
text = Convert.ToString(Math.Round(startValue + stepValue * (i + 1)));
if (i == sideTicksCount / 2)
{
if (RadialUtils.IsSemicircle(Parent) || RadialUtils.IsQuadrant(Parent))
{
if (RadialUtils.IsLeft(Parent) && RadialUtils.IsTop(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsLeft(Parent) && RadialUtils.IsBottom(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsRight(Parent) && RadialUtils.IsTop(Parent))
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsLeft(Parent))
{
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Bottom;
}
else if (RadialUtils.IsRight(Parent))
{
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Bottom;
}
else
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Middle;
}
}
else
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Middle;
}
}
else if (i < sideTicksCount / 2)
{
horAlign = HorAlign.Left;
if (RadialUtils.IsSemicircle(Parent) || RadialUtils.IsQuadrant(Parent))
{
if (RadialUtils.IsLeft(Parent) && RadialUtils.IsTop(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
if (RadialUtils.IsLeft(Parent) && RadialUtils.IsBottom(Parent))
{
vertAlign = VertAlign.Top;
horAlign = HorAlign.Right;
}
else if (RadialUtils.IsBottom(Parent))
{
vertAlign = VertAlign.Top;
}
else if (RadialUtils.IsLeft(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Bottom;
}
else if (RadialUtils.IsRight(Parent))
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Bottom;
}
}
else
{
vertAlign = VertAlign.Bottom;
}
}
else
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Top;
}
txtPoint = GetTextPoint(tick, -1 * e.ScaleX, isNegative(i, true), isRightPart);
DrawText(e, text, brush, txtPoint.X, txtPoint.Y, horAlign, vertAlign);
}
if (drawLeft)
{
//left side
angle *= -1;
tick = RadialUtils.RotateVector(tick0, angle, center);
g.DrawLine(pen, tick[0].X, tick[0].Y, tick[1].X, tick[1].Y);
text = Convert.ToString(Math.Round(startValue - stepValue * (i + 1)));
if (i == sideTicksCount / 2)
{
if (RadialUtils.IsSemicircle(Parent) || RadialUtils.IsQuadrant(Parent))
{
if ((RadialUtils.IsTop(Parent) || RadialUtils.IsBottom(Parent)) && RadialUtils.IsSemicircle(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsLeft(Parent) && RadialUtils.IsTop(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsRight(Parent) && RadialUtils.IsBottom(Parent))
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Middle;
}
else if (RadialUtils.IsLeft(Parent))
{
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Top;
}
else if (RadialUtils.IsRight(Parent))
{
horAlign = HorAlign.Middle;
vertAlign = VertAlign.Top;
}
}
else
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Middle;
}
}
else if (i < sideTicksCount / 2)
{
horAlign = HorAlign.Right;
if (RadialUtils.IsSemicircle(Parent) || RadialUtils.IsQuadrant(Parent))
{
if (RadialUtils.IsRight(Parent) && RadialUtils.IsBottom(Parent))
{
vertAlign = VertAlign.Top;
horAlign = HorAlign.Left;
}
else if (RadialUtils.IsTop(Parent) && RadialUtils.IsLeft(Parent))
{
vertAlign = VertAlign.Bottom;
horAlign = HorAlign.Right;
}
else if (RadialUtils.IsBottom(Parent))
{
vertAlign = VertAlign.Top;
}
else if (RadialUtils.IsLeft(Parent))
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Top;
}
else if (RadialUtils.IsRight(Parent))
{
horAlign = HorAlign.Left;
vertAlign = VertAlign.Top;
}
}
else
{
vertAlign = VertAlign.Bottom;
}
}
else
{
horAlign = HorAlign.Right;
vertAlign = VertAlign.Top;
}
txtPoint = GetTextPoint(tick, -1 * e.ScaleX, isNegative(i, false), isLeftPart);
DrawText(e, text, brush, txtPoint.X, txtPoint.Y, horAlign, vertAlign);
angle *= -1;
}
angle += majorStep * RadialGauge.Radians;
}
}