/// <summary>
/// Builds a chart label with the specified properties.
/// </summary>
/// <param name="text"></param>
/// <param name="location"></param>
/// <param name="compass"></param>
private void makeLabel(string text, Point location, LabelCompassEnum compass)
{
C1.Win.C1Chart.Label lab = c1Chart1.ChartLabels.LabelsCollection.AddNewLabel();
lab.Style.Border.BorderStyle = BorderStyleEnum.Solid;
lab.Text = text;
lab.AttachMethod = AttachMethodEnum.Coordinate;
lab.AttachMethodData.X = location.X;
lab.AttachMethodData.Y = location.Y;
lab.Style.HorizontalAlignment = AlignHorzEnum.Near;
lab.Compass = compass;
lab.Visible = true;
}
private LabelCompassEnum getLabelCompassFromAngle(double angle)
{
LabelCompassEnum lce = LabelCompassEnum.East;
if (angle >= -22.5 && angle < 22.5)
{
lce = LabelCompassEnum.East;
}
else if (angle >= 22.5 && angle < 67.5)
{
lce = LabelCompassEnum.SouthEast;
}
else if (angle >= 67.5 && angle < 112.5)
{
lce = LabelCompassEnum.South;
}
else if (angle >= 112.5 && angle < 157.5)
{
lce = LabelCompassEnum.SouthWest;
}
else if (angle >= 157.5 || angle <= -157.5)
{
lce = LabelCompassEnum.West;
}
else if (angle <= -112.5 && angle > -157.5)
{
lce = LabelCompassEnum.NorthWest;
}
else if (angle <= -67.5 && angle > -112.5)
{
lce = LabelCompassEnum.North;
}
else if (angle <= -22.5 && angle > -67.5)
{
lce = LabelCompassEnum.NorthEast;
}
return(lce);
}
private void HighlightObject(object obj)
{
// do nothing if still same object
if (obj != null)
{
if (obj.Equals(highlightedObject))
{
return;
}
}
// since they are different, clear the original
// object if it's not null
highlightedObject = null;
if (highlightedObjectStyle != null)
{
highlightedObjectStyle.BackColor = objectBackColor;
objectBackColor = Color.Empty;
highlightedObjectStyle = null;
}
C1.Win.C1Chart.Label lab = c1Chart1.ChartLabels[labName];
if (lab != null)
{
c1Chart1.ChartLabels.LabelsCollection.Remove(lab);
}
if (obj == null)
{
UpdateFooter();
return;
}
// handle the changes for the new object highlighting
string describe = null;
Point atPoint = Point.Empty;
LabelCompassEnum cp = LabelCompassEnum.NorthWest;
if (obj is Legend)
{
Legend leg = (Legend)obj;
describe = " This is the Legend! ";
atPoint = leg.Location;
highlightedObjectStyle = leg.Style;
}
else if (obj is Title)
{
Title t = (Title)obj;
highlightedObjectStyle = t.Style;
if (highlightedObjectStyle.Border.BorderStyle.Equals(BorderStyleEnum.None))
{
describe = " This is the Footer! ";
atPoint = t.Location;
atPoint.X += t.Size.Width;
cp = LabelCompassEnum.NorthEast;
}
else
{
describe = " This is the \nHeader! ";
atPoint = t.Location;
atPoint.X += t.Size.Width;
atPoint.Y += t.Size.Height;
cp = LabelCompassEnum.SouthEast;
}
}
if (!atPoint.IsEmpty)
{
C1.Win.C1Chart.Label nl = c1Chart1.ChartLabels.LabelsCollection.AddNewLabel();
nl.Compass = cp;
nl.Name = labName;
nl.Connected = true;
nl.Offset = 10;
nl.AttachMethod = AttachMethodEnum.Coordinate;
nl.AttachMethodData.X = atPoint.X;
nl.AttachMethodData.Y = atPoint.Y;
nl.Style.BackColor = Color.RosyBrown;
nl.Style.Border.BorderStyle = BorderStyleEnum.Solid;
nl.Style.Border.Thickness = 2;
nl.Style.Font = new Font(nl.Style.Font.Name, 10, FontStyle.Bold);
nl.Style.HorizontalAlignment = AlignHorzEnum.Center;
nl.Text = describe;
nl.Visible = true;
objectBackColor = highlightedObjectStyle.BackColor;
highlightedObjectStyle.BackColor = Color.RosyBrown;
highlightedObject = obj;
}
UpdateFooter();
}
private void picSelect_Paint(object sender, PaintEventArgs e)
{
PictureBox pic = sender as PictureBox;
if (pic != null)
{
Graphics g = e.Graphics;
Font f = this.Font;
int fs = (int)(f.SizeInPoints * e.Graphics.DpiY / 72);
Rectangle rect = Rectangle.Inflate(pic.DisplayRectangle, -(12 + fs), -(12 + fs));
Point center = new Point(rect.X + rect.Width / 2, rect.Y + rect.Height / 2);
if (pic.Tag == null)
{
pic.Tag = rect;
}
double radiusi = rect.Width / 2;
double radiuso = radiusi + 5;
double radiuss = radiuso + 5 + fs / 2;
string[] cps = new string[] { "E", "SE", "S", "SW", "W", "NW", "N", "NE" };
int inc = 360 / cps.Length;
LabelCompassEnum lce = c1Chart1.ChartLabels[0].Compass;
for (int s = 0; s < cps.Length; s++)
{
int i = s * inc;
Brush brush = ((i & 1) == 0) ? Brushes.CornflowerBlue : Brushes.Cornsilk;
if (radioCompass.Checked && lce == getLabelCompassFromAngle((i > 180) ? i - 360 : i))
{
brush = Brushes.DarkRed;
g.FillPie(brush, rect, i - inc / 2, inc);
g.DrawPie(Pens.DarkBlue, rect, i - inc / 2, inc);
}
else
{
g.FillPie(brush, rect, i - inc / 2, inc);
}
double angle = i * Math.PI / 180;
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
string str = radioCompass.Checked ? cps[s] : i.ToString();
SizeF sz = g.MeasureString(str, f);
Point tick = new Point((int)(center.X + radiusi * cos), (int)(center.Y + radiusi * sin));
Point tickr = new Point((int)(center.X + radiuso * cos), (int)(center.Y + radiuso * sin));
Point sloc = new Point((int)(center.X + radiuss * cos - sz.Width / 2), (int)(center.Y + radiuss * sin - sz.Height / 2));
g.DrawLine(Pens.Black, tick, tickr);
g.DrawString(str, this.Font, Brushes.Black, sloc);
}
if (radioRotation.Checked)
{
double angle = c1Chart1.ChartLabels[0].RotationOverride * Math.PI / 180;
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
Point tick = new Point((int)(center.X + radiusi * cos), (int)(center.Y + radiusi * sin));
g.DrawLine(Pens.DarkRed, center, tick);
}
g.DrawEllipse(Pens.Black, rect);
}
}
