private void CalcCoordsAndUpdate(ColorHandler.Hsv hsv)
{
// Convert color to real-world coordinates and then calculate
// the various points. HSV.Hue represents the degrees (0 to 360),
// HSV.Saturation represents the radius.
// This procedure doesn't draw anything--it simply
// updates class-level variables. The UpdateDisplay
// procedure uses these values to update the screen.
// Given the angle (HSV.Hue), and distance from
// the center (HSV.Saturation), and the center,
// calculate the point corresponding to
// the selected color, on the color wheel.
_colorPoint = GetPoint((double)hsv.Hue / 255 * 360, (double)hsv.Saturation / 255 * _radius, _centerPoint);
// Given the brightness (HSV.value), calculate the
// point corresponding to the brightness indicator.
_brightnessPoint = CalcBrightnessPoint(hsv.Value);
// Store information about the selected color.
_brightness = hsv.Value;
_selectedColor = ColorHandler.HsvToColor(hsv);
_argb = ColorHandler.HsvToRgb(hsv);
// The full color is the same as HSV, except that the
// brightness is set to full (255). This is the top-most
// color in the brightness gradient.
_fullColor = ColorHandler.HsvToColor(hsv.Alpha, hsv.Hue, hsv.Saturation, 255);
}
public void Draw(Graphics g, ColorHandler.Hsv hsv)
{
// Given HSV values, update the screen.
_g = g;
_hsv = hsv;
CalcCoordsAndUpdate(_hsv);
UpdateDisplay();
}
public void Draw(Graphics g, ColorHandler.Argb argb)
{
// Given RGB values, calculate HSV and then update the screen.
_g = g;
_hsv = ColorHandler.RgbToHsv(argb);
CalcCoordsAndUpdate(_hsv);
UpdateDisplay();
}
public ColorChangedEventArgs(ColorHandler.Argb argb, ColorHandler.Hsv hsv)
{
ARGB = argb;
HSV = hsv;
}
protected void OnColorChanged(ColorHandler.Argb argb, ColorHandler.Hsv hsv)
{
var e = new ColorChangedEventArgs(argb, hsv);
ColorChanged(this, e);
}