public override Color BlendColor(Color l, Color r)
{
bool ctrlIng = (Control.ModifierKeys & Keys.Shift) != 0;
bool switchTools = (!Editor.MainForm.DarkenLightenOptions.Inverted && ctrlIng) ||
(Editor.MainForm.DarkenLightenOptions.Inverted && !ctrlIng);
HSL hsl = ColorSpaceHelper.RGBtoHSL(r);
float mod = l.A / 255.0f;
if (switchTools)
{
hsl.Luminance -= (GlobalSettings.DarkenLightenExposure * mod) / 5.0f;
}
else
{
hsl.Luminance += (GlobalSettings.DarkenLightenExposure * mod) / 5.0f;
}
if (hsl.Luminance < 0)
{
hsl.Luminance = 0;
}
if (hsl.Luminance > 1)
{
hsl.Luminance = 1;
}
return(Color.FromArgb(r.A, ColorSpaceHelper.HSLtoColor(hsl)));
}
public static Bitmap GenerateColorSquare(int width, int height)
{
var colorSquare = new Bitmap(width, height);
// START HUE DRAW
Graphics g = Graphics.FromImage(colorSquare);
//Set the hue shades with the correct saturation and luminance
System.Drawing.Color[] theColors =
{
ColorSpaceHelper.HSLtoColor(new HSL(0, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(60, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(120, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(180, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(240, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(300, 1, 0.5f)),
ColorSpaceHelper.HSLtoColor(new HSL(360, 1, 0.5f))
};
//Calculate positions
float percent = 1.0f / 6;
float[] thePositions = { 0.0f, percent, percent * 2, percent * 3, percent * 4, percent * 5, 1.0f };
//Set blend
var theBlend = new ColorBlend();
theBlend.Colors = theColors;
theBlend.Positions = thePositions;
//Get rectangle
var colorRect = new Rectangle(0, 0, width, height);
//Make the linear brush and assign the custom blend to it
var theBrush = new LinearGradientBrush(colorRect,
System.Drawing.Color.Red,
System.Drawing.Color.Red, 0, false);
theBrush.InterpolationColors = theBlend;
//Draw rectangle
g.FillRectangle(theBrush, colorRect);
//END HUE
//START SATURATION
//--- 0% sat 50% lum = 128 r, g and b
System.Drawing.Color halfSatColor = System.Drawing.Color.FromArgb(128, 128, 128);
System.Drawing.Color halfSatColorNoAlpha = System.Drawing.Color.FromArgb(0, 128, 128, 128);
g.FillRectangle(new LinearGradientBrush(colorRect, halfSatColorNoAlpha, halfSatColor, 90, false), colorRect);
//END SATURATION
return(colorSquare);
}
