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java.lang.Objectorg.jdesktop.swingx.util.PaintUtils
public class PaintUtils
A collection of utilities for working with Paints and Colors.
Field Summary | |
---|---|
static GradientPaint |
AERITH
|
static Paint |
BLACK_STAR
|
static GradientPaint |
BLUE_EXPERIENCE
|
static GradientPaint |
GRAY
|
static GradientPaint |
MAC_OSX
|
static GradientPaint |
MAC_OSX_SELECTED
|
static GradientPaint |
NIGHT_GRAY
|
static GradientPaint |
NIGHT_GRAY_LIGHT
|
static Paint |
ORANGE_DELIGHT
|
static GradientPaint |
RED_XP
|
Method Summary | |
---|---|
static Color |
blend(Color origin,
Color over)
Blends two colors to create a new color. |
static Color |
computeForeground(Color bg)
Computes an appropriate foreground color (either white or black) for the given background color. |
static Paint |
getCheckerPaint()
Creates a new Paint that is a checkered effect using the colors gray and Color.WHITE . |
static Paint |
getCheckerPaint(Paint c1,
Paint c2,
int size)
Creates a new Paint that is a checkered effect using the specified colors. |
static Color |
interpolate(Color b,
Color a,
float t)
Interpolates a color. |
static Color |
removeAlpha(Color color)
Returns a new color equal to the old one, except that there is no alpha (transparency) channel. |
static Paint |
resizeGradient(Paint p,
int width,
int height)
Resizes a gradient to fill the width and height available. |
static Color |
setAlpha(Color color,
int alpha)
Returns a new color equal to the old one, except alpha (transparency) channel is set to the new value. |
static Color |
setBrightness(Color color,
float brightness)
Returns a new color equal to the old one, except the brightness is set to the new value. |
static Color |
setSaturation(Color color,
float saturation)
Returns a new color equal to the old one, except the saturation is set to the new value. |
static String |
toHexString(Color color)
Creates a String that represents the supplied color as a
hex-value RGB triplet, including the "#". |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static final GradientPaint BLUE_EXPERIENCE
public static final GradientPaint MAC_OSX_SELECTED
public static final GradientPaint MAC_OSX
public static final GradientPaint AERITH
public static final GradientPaint GRAY
public static final GradientPaint RED_XP
public static final GradientPaint NIGHT_GRAY
public static final GradientPaint NIGHT_GRAY_LIGHT
public static final Paint ORANGE_DELIGHT
public static final Paint BLACK_STAR
Method Detail |
---|
public static Paint resizeGradient(Paint p, int width, int height)
public static Paint getCheckerPaint()
Paint
that is a checkered effect using the colors gray
and Color.WHITE
.
public static Paint getCheckerPaint(Paint c1, Paint c2, int size)
Paint
that is a checkered effect using the specified colors.
While this method supports transparent colors, this implementation performs painting operations using the second color after it performs operations using the first color. This means that to create a checkered paint with a fully-transparent color, you MUST specify that color first.
c1
- the first colorc2
- the second colorsize
- the size of the paint
Paint
checkering the supplied colorspublic static String toHexString(Color color)
String
that represents the supplied color as a
hex-value RGB triplet, including the "#". The return value is suitable
for use in HTML. The alpha (transparency) channel is neither include nor
used in producing the string.
color
- the color to convert
String
public static Color removeAlpha(Color color)
This method is a convenience and has the same effect as setAlpha(color, 255)
.
color
- the color to remove the alpha (transparency) from
Color
NullPointerException
- if color
is null
public static Color setAlpha(Color color, int alpha)
color
- the color to modifyalpha
- the new alpha (transparency) level. Must be an int between 0
and 255
Color
IllegalArgumentException
- if alpha
is not between 0 and 255 inclusive
NullPointerException
- if color
is null
public static Color setSaturation(Color color, float saturation)
The color is modified using HSB calculations. The saturation must be a float between 0 and 1. If 0 the resulting color will be gray. If 1 the resulting color will be the most saturated possible form of the passed in color.
color
- the color to modifysaturation
- the saturation to use in the new color
Color
IllegalArgumentException
- if saturation
is not between 0 and 1 inclusive
NullPointerException
- if color
is null
public static Color setBrightness(Color color, float brightness)
The color is modified using HSB calculations. The brightness must be a float between 0 and 1. If 0 the resulting color will be black. If 1 the resulting color will be the brightest possible form of the passed in color.
color
- the color to modifybrightness
- the brightness to use in the new color
Color
IllegalArgumentException
- if brightness
is not between 0 and 1 inclusive
NullPointerException
- if color
is null
public static Color blend(Color origin, Color over)
origin
color is the
base for the new color and regardless of its alpha component, it is
treated as fully opaque (alpha 255).
origin
- the base of the new colorover
- the alpha-enabled color to add to the origin
color
origin
and over
colorspublic static Color interpolate(Color b, Color a, float t)
b
- the first colora
- the second colort
- the amount to interpolate
public static Color computeForeground(Color bg)
bg
- the background color
Color.WHITE
or Color.BLACK
NullPointerException
- if bg
is null
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