private void CalcCoordsAndUpdate(ColourHandler.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 = ColourHandler.HSVtoColour(HSV);
RGB = ColourHandler.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 = ColourHandler.HSVtoColour(HSV.Hue, HSV.Saturation, 255);
}
public void Draw(Graphics g, ColourHandler.HSV HSV)
{
// Given HSV values, update the screen.
this.g = g;
this.HSV = HSV;
CalcCoordsAndUpdate(this.HSV);
UpdateDisplay();
}
public void Draw(Graphics g, ColourHandler.RGB RGB)
{
// Given RGB values, calculate HSV and then update the screen.
this.g = g;
this.HSV = ColourHandler.RGBtoHSV(RGB);
CalcCoordsAndUpdate(this.HSV);
UpdateDisplay();
}
public ColourChangedEventArgs(ColourHandler.RGB RGB, ColourHandler.HSV HSV)
{
rGB = RGB;
hSV = HSV;
}
protected void OnColourChanged(ColourHandler.RGB RGB, ColourHandler.HSV HSV)
{
ColourChangedEventArgs e = new ColourChangedEventArgs(RGB, HSV);
ColourChanged(this, e);
}
