private void DrawScale(Graphics graphics, Rectangle clipRect, Font font, HeaderFormat headerformat, List <RectangleF> labelRects, List <DateTime> dates)
{
TimelinePaintEventArgs e = null;
DateTime datetime = dates[0]; // these initialisation values matter
for (int i = 0; i < labelRects.Count; i++)
{
// Give user a chance to format the tickmark that is to be drawn
// https://blog.nicholasrogoff.com/2012/05/05/c-datetime-tostring-formats-quick-reference/
datetime = dates[i];
GetLabel(datetime, out HeaderLabel minor, out HeaderLabel major);
e = new TimelinePaintEventArgs(graphics, clipRect, control, datetime, new DateTime(), minor, major);
PaintTimeline?.Invoke(this, e);
// Draw the label if not already handled by the user
if (!e.Handled)
{
if (!string.IsNullOrEmpty(minor.Text))
{
// Draw minor label
var textbox = graphics.TextBoxAlign(minor.Text, minor.Format.TextAlign, minor.Format.Font, labelRects[i], minor.Format.Margin);
graphics.DrawString(minor.Text, minor.Format.Font, minor.Format.Color, textbox);
}
if (!string.IsNullOrEmpty(major.Text))
{
// Draw major label
var majorLabelRect = new RectangleF(labelRects[i].X, viewport.Y, control.MajorWidth, control.HeaderOneHeight);
var textbox = graphics.TextBoxAlign(major.Text, major.Format.TextAlign, major.Format.Font, majorLabelRect, major.Format.Margin);
graphics.DrawString(major.Text, major.Format.Font, major.Format.Color, textbox);
//__DrawMarker(graphics, labelRects[i].X + MinorWidth / 2f, _mViewport.Y + HeaderOneHeight - 2f);
}
}
}
}
protected virtual void OnPaintTimeline(TimelinePaintEventArgs e)
{
PaintTimeline?.Invoke(this, e);
}