/// <summary>
/// Perform a complete recalculation of the control.
/// </summary>
/// <remarks></remarks>
private void Recalculate()
{
if (this.DrawingArea is null)
{
return;
}
_refSize = this.DrawingArea.RenderSize;
if (_refSize.Height == 0d)
{
return;
}
// UpdateOutline()
// ' this is the current angle calculated from the current box dimensions
var pol = PolarCoordinates.ToPolarCoordinates(_refSize.Width, _refSize.Height);
_angle = pol.Arc;
CalculateSections();
}
/// <summary>
/// Calculate and position the polygon sections, based on geometry, for the current size, position, and number of bars.
/// </summary>
/// <remarks></remarks>
private void CalculateSections()
{
var s = _refSize;
PointCollection pc;
int d = (int)(Sections - 1L);
Polygon p;
double wHeight = s.Height - Blunting;
double wWidth = s.Width;
SolidColorBrush bc = (SolidColorBrush)Application.Current.Resources["TrippLiteLcdType"];
// ' the width of each section will be calculated here, subtracting initial width by the spacing
var pol = PolarCoordinates.ToPolarCoordinates(wWidth, wHeight);
double w = (wWidth - SectionSpacing * (Sections - 1L)) / Sections;
double sw = SectionSpacing;
LinearCoordinates pt;
int i;
double x = 0d;
// ' calculate from hypoteneuse side.
double fr = pol.Radius / wWidth;
var cblin = CalcBars(LoadValue, (int)Sections) - 1;
this.BarsArea.Children.Clear();
System.Threading.Thread.Sleep(0);
var c = (int)(Sections - 1L);
for (i = 0; i <= c; i++)
{
// ' fresh point collection
pc = new PointCollection();
p = _polyCache[i];
pol.Radius = x + w;
pol.Radius *= fr;
pt = PolarCoordinates.ToLinearCoordinates(pol);
pc.Add(new Point(x, s.Height));
pc.Add(new Point(pt.X, s.Height));
pc.Add(new Point(pt.X, Math.Max(0d, wHeight - pt.Y)));
pol.Radius = x;
pol.Radius *= fr;
pt = PolarCoordinates.ToLinearCoordinates(pol);
pc.Add(new Point(pt.X, Math.Max(0d, wHeight - pt.Y)));
pc.Add(new Point(pt.X, s.Height));
p.Points = pc;
p.Fill = bc;
p.Effect = this.BackingBar.Effect;
if (cblin < i)
{
p.Opacity = 0.33d;
}
else
{
p.Opacity = 1d;
}
this.BarsArea.Children.Add(p);
x += w;
x += sw;
}
}