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Chapter 18 The java.awt Package |
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Chapter 18 The java.awt Package |
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The Color object describes a color. The Color() constructors describe a color as red, green, and blue components between 0 and 255, or as floating-point values between 0.0 and 1.0. The class method Color.getHSBColor() creates a color using the hue/saturation/brightness color model.
brighter() and darker() are useful methods to create shading effects. The getColor() methods look up a color name in the properties database and convert the resulting integer color value into a Color object. Two of these methods provide a default value to be used in case the specified color name is not found.
public class Color extends Object implements Serializable {
// Public Constructors
public Color(int r, int g, int b);
public Color(int rgb);
public Color(float r, float g, float b);
// Constants
public static final Color black;
public static final Color blue;
public static final Color cyan;
public static final Color darkGray;
public static final Color gray;
public static final Color green;
public static final Color lightGray;
public static final Color magenta;
public static final Color orange;
public static final Color pink;
public static final Color red;
public static final Color white;
public static final Color yellow;
// Class Methods
public static int HSBtoRGB(float hue, float saturation, float brightness);
public static float[] RGBtoHSB(int r, int g, int b, float[] hsbvals);
1.1 public static Color decode(String nm) throws NumberFormatException;
public static Color getColor(String nm);
public static Color getColor(String nm, Color v);
public static Color getColor(String nm, int v);
public static Color getHSBColor(float h, float s, float b);
// Public Instance Methods
public Color brighter();
public Color darker();
public boolean equals(Object obj); // Overrides Object
public int getBlue();
public int getGreen();
public int getRGB();
public int getRed();
public int hashCode(); // Overrides Object
public String toString(); // Overrides Object
}
SystemColor
Color.getColor(), Component.setBackground(), Component.setForeground(), ComponentPeer.setBackground(), ComponentPeer.setForeground(), Graphics.drawImage(), Graphics.setColor(), Graphics.setXORMode()
Color.brighter(), Color.darker(), Color.decode(), Color.getColor(), Color.getHSBColor(), Component.getBackground(), Component.getForeground(), Graphics.getColor()
Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green, Color.lightGray, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow
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| java.awt.Choice (JDK 1.0) |  |
java.awt.Component (JDK 1.0) |
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