////[CLSCompliant(false)]
protected override void OnPaintOffScreen(PaintEventArgs e)
{
// Sort the satellites by signal
if (_Satellites == null)
{
return;
}
// Decide which collection to display
List <Satellite> SatellitesToDraw = null;
List <Satellite> SatellitesToRender = null;
float BarWidth;
try
{
#if PocketPC
if (LicenseManager.UsageMode == LicenseUsageMode.Designtime)
{
//SatellitesToRender = SatelliteCollection.Random(45);
}
else
{
if (_Satellites == null)
{
return;
}
SatellitesToRender = new List <Satellite>();
foreach (Satellite satellite in _Satellites)
{
// Don't draw if the satellite is stale
if (!satellite.IsActive)
{
continue;
}
// Add it in
SatellitesToRender.Add(satellite);
}
Thread.Sleep(0);
}
#else
if (_Satellites == null)
{
return;
}
SatellitesToRender = new List <Satellite>();
for (int index = 0; index < _Satellites.Count; index++)
{
Satellite satellite = _Satellites[index];
// Don't draw if the satellite is stale
if (!satellite.IsActive && !DesignMode)
{
continue;
}
// Add it in
SatellitesToRender.Add(satellite);
}
#endif
// Make a fake collection if necessary
if (SatellitesToRender.Count == 0)
{
return;
}
// Sort the list by PRN
SatellitesToRender.Sort();
// Calculate the width of each bar
float TotalWidth = (Width - _GapWidth) / SatellitesToRender.Count;
BarWidth = TotalWidth - _GapWidth;
SatellitesToDraw = new List <Satellite>();
// If if the bars are thin, see if we can exclude 0 dB satellites
if (BarWidth < 15)
{
// Display only the satellites with a > 0 dB signal
foreach (Satellite satellite in SatellitesToRender)
{
// Draw if the signal is > 0
if (!satellite.SignalToNoiseRatio.IsEmpty)
{
SatellitesToDraw.Add(satellite);
}
}
// If there's anything left, recalculate
if (SatellitesToDraw.Count == 0)
{
return;
}
// Recalculate bar/total width
TotalWidth = (Width - _GapWidth) / SatellitesToDraw.Count;
BarWidth = TotalWidth - _GapWidth;
}
else
{
// Display only the satellites with a > 0 dB signal
foreach (Satellite satellite in SatellitesToRender)
{
// Draw if the signal is > 0
SatellitesToDraw.Add(satellite);
}
}
// Anything to do?
if (SatellitesToDraw.Count == 0)
{
return;
}
// Now draw each one
float StartX = _GapWidth;
float StartY = (float)(Height - e.Graphics.MeasureString("10", _PseudorandomNumberFont).Height);
float ScaleFactor = (float)(StartY
- e.Graphics.MeasureString("10", _SignalStrengthLabelFont).Height) / 50.0f;
foreach (Satellite satellite in SatellitesToDraw)
{
float SatelliteY = StartY - (satellite.SignalToNoiseRatio.Value * ScaleFactor);
// Each icon is 30x30, so we'll translate it by half the distance
if (satellite.IsFixed)
{
SizeF PrnSize = e.Graphics.MeasureString(satellite.PseudorandomNumber.ToString(CultureInfo.CurrentCulture), _PseudorandomNumberFont);
#if PocketPC
e.Graphics.FillEllipse(pSatelliteFixBrush, (int)(StartX + (BarWidth * 0.5) - (PrnSize.Width * 0.5) - 4.0), (int)(StartY - 4), (int)(PrnSize.Width + 8), (int)(PrnSize.Height + 8));
#else
using (SolidBrush FixBrush = new SolidBrush(Color.FromArgb(Math.Min(255, _FixedSatellites.Count * 20), _SatelliteFixColor)))
{
e.Graphics.FillEllipse(FixBrush, (float)(StartX + (BarWidth * 0.5) - (PrnSize.Width * 0.5) - 4.0), StartY - 4, PrnSize.Width + 8, PrnSize.Height + 8);
}
#endif
}
StartX += _GapWidth;
StartX += BarWidth;
}
StartX = _GapWidth;
foreach (Satellite satellite in SatellitesToDraw)
{
// If the signal is 0dB, skip it
if (satellite.SignalToNoiseRatio.Value == 0)
{
continue;
}
// Keep drawing the satellite
float SatelliteY = StartY - (Math.Min(satellite.SignalToNoiseRatio.Value, 50) * ScaleFactor);
#if PocketPC
// Draw a rectangle for each satellite
SolidBrush FillBrush = new SolidBrush(GetFillColor(satellite.SignalToNoiseRatio));
e.Graphics.FillRectangle(FillBrush, (int)StartX, (int)SatelliteY, (int)BarWidth, (int)(StartY - SatelliteY));
FillBrush.Dispose();
Pen FillPen = new Pen(GetOutlineColor(satellite.SignalToNoiseRatio));
e.Graphics.DrawRectangle(FillPen, (int)StartX, (int)SatelliteY, (int)BarWidth, (int)(StartY - SatelliteY));
FillPen.Dispose();
#else
// Get the fill color
Color BarColor = GetFillColor(satellite.SignalToNoiseRatio);
float BarHue = BarColor.GetHue();
// Create gradients for a glass effect
Color topTopColor = DoubleBufferedControl.ColorFromAhsb(255, BarHue, 0.2958f, 0.7292f);
Color topBottomColor = DoubleBufferedControl.ColorFromAhsb(255, BarHue, 0.5875f, 0.35f);
Color bottomTopColor = DoubleBufferedControl.ColorFromAhsb(255, BarHue, 0.7458f, 0.2f);
Color bottomBottomColor = DoubleBufferedControl.ColorFromAhsb(255, BarHue, 0.6f, 0.4042f);
// Draw a rectangle for each satellite
RectangleF TopRect = new RectangleF(StartX, SatelliteY, BarWidth, Convert.ToSingle((StartY - SatelliteY) * 0.5));
using (Brush TopFillBrush = new LinearGradientBrush(TopRect, topTopColor, topBottomColor, LinearGradientMode.Vertical))
{
e.Graphics.FillRectangle(TopFillBrush, TopRect);
}
// Draw a rectangle for each satellite
RectangleF BottomRect = new RectangleF(StartX, SatelliteY + TopRect.Height, BarWidth, TopRect.Height);
using (Brush BottomFillBrush = new LinearGradientBrush(BottomRect, bottomTopColor, bottomBottomColor, LinearGradientMode.Vertical))
{
e.Graphics.FillRectangle(BottomFillBrush, BottomRect);
}
using (Pen FillPen = new Pen(GetOutlineColor(satellite.SignalToNoiseRatio), 1.0f))
{
e.Graphics.DrawRectangle(FillPen, StartX, SatelliteY, BarWidth, StartY - SatelliteY);
}
#endif
string PrnString = satellite.PseudorandomNumber.ToString(CultureInfo.CurrentCulture);
SizeF PrnSize = e.Graphics.MeasureString(PrnString, _PseudorandomNumberFont);
e.Graphics.DrawString(PrnString, _PseudorandomNumberFont,
_PseudorandomNumberBrush, (float)(StartX + (BarWidth * 0.5) - (PrnSize.Width * 0.5)), StartY);
string RenderString = satellite.SignalToNoiseRatio.ToString("0 dB", CultureInfo.CurrentCulture);
SizeF SignalSize = e.Graphics.MeasureString(RenderString, _SignalStrengthLabelFont);
if (SignalSize.Width > BarWidth)
{
RenderString = satellite.SignalToNoiseRatio.ToString("0 dB", CultureInfo.CurrentCulture).Replace(" dB", "");
SignalSize = e.Graphics.MeasureString(RenderString, _SignalStrengthLabelFont);
}
e.Graphics.DrawString(RenderString, _SignalStrengthLabelFont,
_SignalStrengthLabelBrush, (float)(StartX + (BarWidth * 0.5) - (SignalSize.Width * 0.5)), SatelliteY - SignalSize.Height);
StartX += _GapWidth;
StartX += BarWidth;
}
}
catch (NullReferenceException)
{
// Don't throw because the control is shutting down
}
catch
{
throw;
}
// finally
// {
// if (SatellitesToDraw != null)
// SatellitesToDraw.Dispose();
// if (SatellitesToRender != null)
// SatellitesToRender.Dispose();
// }
}
protected override void OnBackColorChanged(EventArgs e)
{
base.OnBackColorChanged(e);
Color BackgroundColor;
if (BackColor.Equals(Color.Transparent))
{
if (Parent != null)
{
BackgroundColor = Parent.BackColor;
}
else
{
BackgroundColor = Color.White;
}
}
else
{
BackgroundColor = BackColor;
}
// Get the hue of the background color
float hue = BackgroundColor.GetHue();
float saturation = BackgroundColor.GetSaturation();
float bright = BackgroundColor.GetBrightness();
float alpha = BackgroundColor.A;
// Get a value which is darker or lighter
CircleEdge = DoubleBufferedControl.ColorFromAhsb(220, hue, saturation, bright * 0.2f);
CircleBack = DoubleBufferedControl.ColorFromAhsb(190, hue, saturation, bright * 0.4f);
CircleCenter = DoubleBufferedControl.ColorFromAhsb(210, hue, saturation, bright * 0.7f);
CircleBright = DoubleBufferedControl.ColorFromAhsb(250, hue, saturation, bright * 1.0f);
#region Draw the faded edge of the circle to give spherical depth
GlassShadowColorBlend.Colors = new Color[] { CircleEdge, CircleBack, CircleCenter, CircleCenter };
GlassShadowColorBlend.Positions = new float[] { 0.00F, 0.25f, 0.7f, 1.0f };
#endregion
#region Set the colors of the reflection
// If the background color is black, make the class reflection white
if (BackgroundColor.Equals(Color.Black))
{
float WhiteHue = Color.White.GetHue();
float WhiteSaturation = Color.White.GetSaturation();
float WhiteBright = Color.White.GetBrightness();
CircleCenter = DoubleBufferedControl.ColorFromAhsb(210, WhiteHue, WhiteSaturation, WhiteBright * 0.7f);
CircleBright = DoubleBufferedControl.ColorFromAhsb(250, WhiteHue, WhiteSaturation, WhiteBright * 1.0f);
GlassReflectionColorBlend.Colors = new Color[] { CircleBright, Color.FromArgb(200, CircleCenter), Color.FromArgb(10, CircleCenter), Color.Transparent };
}
else
{
Color NearWhite = DoubleBufferedControl.ColorFromAhsb(255, hue, saturation, 1.0f);
GlassReflectionColorBlend.Colors = new Color[] { NearWhite, Color.FromArgb(200, CircleCenter), Color.FromArgb(10, CircleCenter), Color.Transparent };
}
GlassReflectionColorBlend.Positions = new float[] { 0F, 0.15f, 0.35F, 1.0f };
MakeBrushes();
#endregion
}