net.thevpc.common.swing.color

Class ColorUtils

java.lang.Object

net.thevpc.common.swing.color.ColorUtils

public class ColorUtils
extends Object

Author:

vpc

Field Summary

Fields

Modifier and Type	Field and Description
static String	TEXTUTE_ID_SAMPLE1
static String	TEXTUTE_ID_SAMPLE2
static String	TEXTUTE_ID_SAMPLE3
static String	TEXTUTE_ID_SAMPLE4
static String	TEXTUTE_ID_SAMPLE5

Constructor Summary

Constructors

Constructor and Description
ColorUtils()

Method Summary

Modifier and Type	Method and Description
static Color	addColors(Color c1, Color c2, double amt)
static Color	blendColors(Color c1, Color c2, double amt)
static Color	blendColors(Color c1, Paint c2, double amt)
static Color	blendColors(Paint c1, Color c2, double amt)
static Color	changeAlpha(Color c, int alpha)
static float[]	convertColor(Color color) Returns an array of color components for the given Color object.
static void	convertColor(Color color, float[] destination) Places the RGBA values from the given Color object into the destination array.
static Color	convertColor(float[] color) Returns a new Color object given the color components in the given array.
static String	formatColor(Color s)
static String	formatPaint(Paint s)
static int	getBrightness(Color color) Uses the method described at http://alienryderflex.com/hsp.html to get the perceived brightness of a color.
static int	getBrightness(Paint color)
static TexturePaint	getCheckerBoard(int checkerSize, Color color1, Color color2)
static Color	getColor(Color color, float factor) Returns a new color that is darker or lighter than the given color by the given factor.
static Color	getForegroundColorFromBackgroundColor(Color color) Returns a foreground color (for text) given a background color by examining the brightness of the background color.
static Color	getForegroundColorFromBackgroundColor(Paint color) Returns a foreground color (for text) given a background color by examining the brightness of the background color.
static Color	getInvertColor(Color color) Returns a foreground color (for text) given a background color by examining the brightness of the background color.
static Color	getRandomColor(float offset, float alpha) Returns a random color given the offset and alpha values.
static Color	paintToColor(Paint color)
static Color	parseColor(String s)
static Paint	parsePaint(String s)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TEXTUTE_ID_SAMPLE1

public static final String TEXTUTE_ID_SAMPLE1

See Also:

Constant Field Values

TEXTUTE_ID_SAMPLE2

public static final String TEXTUTE_ID_SAMPLE2

See Also:

Constant Field Values

TEXTUTE_ID_SAMPLE3

public static final String TEXTUTE_ID_SAMPLE3

See Also:

Constant Field Values

TEXTUTE_ID_SAMPLE4

public static final String TEXTUTE_ID_SAMPLE4

See Also:

Constant Field Values

TEXTUTE_ID_SAMPLE5

public static final String TEXTUTE_ID_SAMPLE5

See Also:

Constant Field Values

Constructor Detail

ColorUtils

public ColorUtils()

Method Detail

formatPaint

public static String formatPaint(Paint s)

parseColor

public static Color parseColor(String s)

formatColor

public static String formatColor(Color s)

parsePaint

public static Paint parsePaint(String s)

getCheckerBoard

public static TexturePaint getCheckerBoard(int checkerSize,
                                           Color color1,
                                           Color color2)

changeAlpha

public static Color changeAlpha(Color c,
                                int alpha)

blendColors

public static Color blendColors(Paint c1,
                                Color c2,
                                double amt)

blendColors

public static Color blendColors(Color c1,
                                Paint c2,
                                double amt)

getForegroundColorFromBackgroundColor

public static final Color getForegroundColorFromBackgroundColor(Paint color)

Returns a foreground color (for text) given a background color by examining the brightness of the background color.

Parameters:

color - the foreground color

Returns:

Color

blendColors

public static Color blendColors(Color c1,
                                Color c2,
                                double amt)

addColors

public static Color addColors(Color c1,
                              Color c2,
                              double amt)

convertColor

public static final float[] convertColor(Color color)

Returns an array of color components for the given Color object.

Parameters:

color - the color object

Returns:

float[]

convertColor

public static final Color convertColor(float[] color)

Returns a new Color object given the color components in the given array.

Parameters:

color - the color components in RGB or RGBA

Returns:

Color

convertColor

public static final void convertColor(Color color,
                                      float[] destination)

Places the RGBA values from the given Color object into the destination array.

Parameters:

color - the color to convert

destination - the array to hold the RGBA values; length 4

getBrightness

public static final int getBrightness(Paint color)

getBrightness

public static final int getBrightness(Color color)

Uses the method described at http://alienryderflex.com/hsp.html to get the perceived brightness of a color.

Parameters:

color - the color

Returns:

int brightness on the scale of 0 to 255

getForegroundColorFromBackgroundColor

public static final Color getForegroundColorFromBackgroundColor(Color color)

Returns a foreground color (for text) given a background color by examining the brightness of the background color.

Parameters:

color - the foreground color

Returns:

Color

getInvertColor

public static final Color getInvertColor(Color color)

Returns a foreground color (for text) given a background color by examining the brightness of the background color.

Parameters:

color - the foreground color

Returns:

Color

getRandomColor

public static final Color getRandomColor(float offset,
                                         float alpha)

Returns a random color given the offset and alpha values.

Parameters:

offset - the offset between 0.0 and 1.0

alpha - the alpha value between 0.0 and 1.0

Returns:

Color

getColor

public static final Color getColor(Color color,
                                   float factor)

Returns a new color that is darker or lighter than the given color by the given factor.

Parameters:

color - the color to modify

factor - 0.0 ≤ factor ≤ 1.0 darkens; 1.0 < factor brightens

Returns:

Color

Since:

1.0.1

paintToColor

public static Color paintToColor(Paint color)