Java Utililty Methods Color Darker

List of utility methods to do Color Darker

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Description

The list of methods to do Color Darker are organized into topic(s).

Method

intdarker(int channel, int intensity)
darker 
int color = channel - intensity;
if (color < 0) {
    color = 0;
return color;
ColordarkerColor(Color c)
darker Color 
return factorColor(c, sFactor);
ColordarkerColor(Color c, double amount)
darker Color 
float[] hsbvals = new float[3];
Color.RGBtoHSB(c.getRed(), c.getGreen(), c.getBlue(), hsbvals);
hsbvals[2] = Math.min(1f, Math.max(0f, (float) (hsbvals[2] - amount)));
int rgb = Color.HSBtoRGB(hsbvals[0], hsbvals[1], hsbvals[2]);
rgb |= c.getAlpha() << 24;
return new Color(rgb, true);
ColordarkerColor(Color color, double factor)
Creates a new Color that is a darker version of this Color. 
return new Color(Math.max((int) (color.getRed() * factor), 0),
        Math.max((int) (color.getGreen() * factor), 0), Math.max((int) (color.getBlue() * factor), 0));
StringdarkerColor(String hexValue)
darker Color 
return darkerColor(hexValue, 0.1);
ColorderiveColor(Color orig, int darker)
Derives a color from another color by linearly shifting its blue, green, and blue values. 
int red = orig.getRed() - darker;
int green = orig.getGreen() - darker;
int blue = orig.getBlue() - darker;
if (red < 0)
    red = 0;
else if (red > 255)
    red = 255;
if (green < 0)
...
voiddraw3DFrame(Graphics g, Rectangle rect, Color colorBackground, Color colorDark, Color colorLight)
Draws a 3d frame around the designated rectangle. 
Color colorOld = g.getColor();
g.setColor(colorBackground);
g.fillRect(rect.x, rect.y, rect.width, rect.height);
g.setColor(colorDark);
g.drawLine(rect.x, rect.y, rect.x, rect.y + (rect.height - 1));
g.drawLine(rect.x, rect.y, rect.x + (rect.width - 1), rect.y);
g.setColor(colorLight);
g.drawLine(rect.x + 1, rect.y + (rect.height - 1), rect.x + (rect.width - 1), rect.y + (rect.height - 1));
...
ColorgetDarkColor()
get Dark Color 
return new Color(20, 20, 20);
Color[]getDarkColors(Color[] colors, double fraction)
get Dark Colors 
Color[] darkColors = new Color[colors.length];
int i = 0;
for (Color color : colors) {
    darkColors[i] = darker(color, fraction);
    ++i;
return darkColors;
ColorgetDarker(Color c)
get Darker 
if (DARKER_CACHE == null)
    DARKER_CACHE = new HashMap();
int rgb = c.getRGB();
Color d = DARKER_CACHE.get(rgb);
if (d == null) {
    if (c.equals(Color.WHITE)) {
        d = new Color(244, 244, 244);
    } else {
...