org.eclipse.pde.internal.swt.tools

Class IconExe.PaletteData

java.lang.Object

org.eclipse.pde.internal.swt.tools.IconExe.PaletteData

Enclosing class:

IconExe

static class IconExe.PaletteData
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
int	blueMask the blue mask for a direct palette
int	blueShift the blue shift for a direct palette
IconExe.RGB[]	colors the RGB values for an indexed palette, where the indices of the array correspond to pixel values
int	greenMask the green mask for a direct palette
int	greenShift the green shift for a direct palette
boolean	isDirect true if the receiver is a direct palette, and false otherwise
int	redMask the red mask for a direct palette
int	redShift the red shift for a direct palette

Constructor Summary

Constructors

Constructor and Description
PaletteData(IconExe.RGB[] colors) Constructs a new indexed palette given an array of RGB values.
PaletteData(int redMask, int greenMask, int blueMask) Constructs a new direct palette given the red, green and blue masks.

Method Summary

Modifier and Type	Method and Description
int	getPixel(IconExe.RGB rgb) Returns the pixel value corresponding to the given RBG.
IconExe.RGB	getRGB(int pixel) Returns an RGB corresponding to the given pixel value.
IconExe.RGB[]	getRGBs() Returns all the RGB values in the receiver if it is an indexed palette, or null if it is a direct palette.
(package private) int	shiftForMask(int mask) Computes the shift value for a given mask.

Methods inherited from class java.lang.Object

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

Field Detail

isDirect

public boolean isDirect

true if the receiver is a direct palette, and false otherwise

colors

public IconExe.RGB[] colors

the RGB values for an indexed palette, where the indices of the array correspond to pixel values

redMask

public int redMask

the red mask for a direct palette

greenMask

public int greenMask

the green mask for a direct palette

blueMask

public int blueMask

the blue mask for a direct palette

redShift

public int redShift

the red shift for a direct palette

greenShift

public int greenShift

the green shift for a direct palette

blueShift

public int blueShift

the blue shift for a direct palette

Constructor Detail

PaletteData

public PaletteData(IconExe.RGB[] colors)

Constructs a new indexed palette given an array of RGB values.

Parameters:

colors - the array of RGBs for the palette

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the argument is null

PaletteData

public PaletteData(int redMask,
                   int greenMask,
                   int blueMask)

Constructs a new direct palette given the red, green and blue masks.

Parameters:

redMask - the red mask

greenMask - the green mask

blueMask - the blue mask

Method Detail

getPixel

public int getPixel(IconExe.RGB rgb)

Returns the pixel value corresponding to the given RBG.

Parameters:

rgb - the RGB to get the pixel value for

Returns:

the pixel value for the given RGB

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the argument is null
• ERROR_INVALID_ARGUMENT - if the RGB is not found in the palette

getRGB

public IconExe.RGB getRGB(int pixel)

Returns an RGB corresponding to the given pixel value.

Parameters:

pixel - the pixel to get the RGB value for

Returns:

the RGB value for the given pixel

Throws:

java.lang.IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the argument is null
• ERROR_INVALID_ARGUMENT - if the pixel does not exist in the palette

getRGBs

public IconExe.RGB[] getRGBs()

Returns all the RGB values in the receiver if it is an indexed palette, or null if it is a direct palette.

Returns:

the RGBs for the receiver or null

shiftForMask

int shiftForMask(int mask)

Computes the shift value for a given mask.

Parameters:

mask - the mask to compute the shift for

Returns:

the shift amount

See Also:

IconExe.PaletteData