private void UpdateSelection(int yPos)
{
int huePos = (int)(yPos / rectHueMonitor.ActualHeight * 255);
int gradientStops = 6;
Color c = ColorSpace.GetColorFromPosition(huePos * gradientStops);
rectSample.Fill = new SolidColorBrush(c);
HueSelector.Margin = new Thickness(0, yPos - (HueSelector.ActualHeight / 2), 0, 0);
m_selectedHue = (float)(yPos / rectHueMonitor.ActualHeight) * 360;
UpdateSample(m_sampleX, m_sampleY);
}
private void UpdateOnColorChanged(byte a, byte r, byte g, byte b)
{
m_selectedColor.A = a;
m_selectedColor.R = r;
m_selectedColor.G = g;
m_selectedColor.B = b;
double h, s, v;
ColorSpace.ConvertRgbToHsv(r / 255.0, g / 255.0, b / 255.0, out h, out s, out v);
// update selected color
SelectedColor.Fill = new SolidColorBrush(m_selectedColor);
// update Saturation and Value locator
double xPos = s * rectSample.ActualWidth;
double yPos = (1 - v) * rectSample.ActualHeight;
m_sampleX = xPos;
m_sampleY = yPos;
SampleSelector.Margin = new Thickness(xPos - (SampleSelector.Height / 2), yPos - (SampleSelector.Height / 2), 0, 0);
m_selectedHue = (float)h;
h /= 360;
const int gradientStops = 6;
rectSample.Fill = new SolidColorBrush(ColorSpace.GetColorFromPosition(((int)(h * 255)) * gradientStops));
// Update Hue locator
HueSelector.Margin = new Thickness(0, (h * rectHueMonitor.ActualHeight) - (HueSelector.ActualHeight / 2), 0, 0);
// update alpha selector
ctlAlphaSelect.DisplayColor = m_selectedColor;
if (ColorSelected != null)
{
ColorSelected(this, new RoutedEventArgs());
}
}