com.kitfox.svg.batik
Class GraphicsUtil

java.lang.Object
  com.kitfox.svg.batik.GraphicsUtil

public class GraphicsUtil
extends Object

Author:

kitfox

Constructor Summary

GraphicsUtil()
Creates a new instance of GraphicsUtil

Method Summary

static ColorModel	coerceColorModel(ColorModel cm, boolean newAlphaPreMult) Create a new ColorModel with it's alpha premultiplied state matching newAlphaPreMult.
static ColorModel	coerceData(WritableRaster wr, ColorModel cm, boolean newAlphaPreMult) Coerces data within a bufferedImage to match newAlphaPreMult, Note that this can not change the colormodel of bi so you
protected static void	divide_BYTE_COMP_Data(WritableRaster wr)
protected static void	divide_INT_PACK_Data(WritableRaster wr)
static boolean	is_BYTE_COMP_Data(SampleModel sm)
static boolean	is_INT_PACK_Data(SampleModel sm, boolean requireAlpha)
protected static void	mult_BYTE_COMP_Data(WritableRaster wr)
protected static void	mult_INT_PACK_Data(WritableRaster wr)

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphicsUtil

public GraphicsUtil()

Creates a new instance of GraphicsUtil

Method Detail

coerceColorModel

public static ColorModel coerceColorModel(ColorModel cm,
                                          boolean newAlphaPreMult)

Create a new ColorModel with it's alpha premultiplied state matching newAlphaPreMult.

Parameters:

cm - The ColorModel to change the alpha premult state of.

newAlphaPreMult - The new state of alpha premult.

Returns:

A new colorModel that has isAlphaPremultiplied() equal to newAlphaPreMult.

coerceData

public static ColorModel coerceData(WritableRaster wr,
                                    ColorModel cm,
                                    boolean newAlphaPreMult)

Coerces data within a bufferedImage to match newAlphaPreMult, Note that this can not change the colormodel of bi so you

Parameters:

wr - The raster to change the state of.

cm - The colormodel currently associated with data in wr.

newAlphaPreMult - The desired state of alpha Premult for raster.

Returns:

A new colormodel that matches newAlphaPreMult.

is_INT_PACK_Data

public static boolean is_INT_PACK_Data(SampleModel sm,
                                       boolean requireAlpha)

mult_INT_PACK_Data

protected static void mult_INT_PACK_Data(WritableRaster wr)

divide_INT_PACK_Data

protected static void divide_INT_PACK_Data(WritableRaster wr)

is_BYTE_COMP_Data

public static boolean is_BYTE_COMP_Data(SampleModel sm)

mult_BYTE_COMP_Data

protected static void mult_BYTE_COMP_Data(WritableRaster wr)

divide_BYTE_COMP_Data

protected static void divide_BYTE_COMP_Data(WritableRaster wr)