Package gov.nih.mipav.model.algorithms

Class ContourPlot.BarycentricGradientPaintContext

java.lang.Object

gov.nih.mipav.model.algorithms.ContourPlot.BarycentricGradientPaintContext

All Implemented Interfaces:

PaintContext

Enclosing class:

ContourPlot

public class ContourPlot.BarycentricGradientPaintContext
extends Object
implements PaintContext

This class is implements the PaintContext for ContourPlot.BarycentricGradientPaint.

The context operates solely in ARGB color space (blue on least significant bits) with an integer packing DirectColorModel.

A cache for raster memory is implemented to avoid costly memory allocations.

Author:

hageldave

Field Summary

Fields

Modifier and Type	Field	Description
protected final boolean	antialiasing
protected final int	c1
protected final int	c2
protected final int	c3
protected WeakReference<int[]>	cache
protected final DirectColorModel	cm
protected final float	denom
protected final float[]	MSAA_SAMPLES
protected WritableRaster	saved
protected final float	x1
protected final float	x13
protected final float	x2
protected final float	x23
protected final float	x3
protected final float	y1
protected final float	y13
protected final float	y2
protected final float	y23
protected final float	y3

Constructor Summary

Constructors

Constructor	Description
BarycentricGradientPaintContext(Point2D.Float p1, Point2D.Float p2, Point2D.Float p3, Color color1, Color color2, Color color3, AffineTransform xform, boolean antialiasing)

Method Summary

Modifier and Type	Method	Description
private int	a(int argb)
private int	argb(int a, int r, int g, int b)
private int	b(int argb)
protected void	cacheRaster(WritableRaster ras)
protected WritableRaster	createRaster(int w, int h, int[] data)
private int[]	dataFromRaster(WritableRaster wr)
void	dispose()
protected void	fillRaster(int xA, int yA, int w, int h, int[] data)
protected void	fillRasterMSAA(int xA, int yA, int w, int h, int[] data)
private int	g(int argb)
protected WritableRaster	getCachedOrCreateRaster(int w, int h)
ColorModel	getColorModel()
Raster	getRaster(int xA, int yA, int w, int h)
private int	mixColor3(int c1, int c2, int c3, float m1, float m2, float m3)
private int	mixColor4(int c1, int c2, int c3, int c4, float m1, float m2, float m3, float m4)
private int	r(int argb)
private int	scaleColorAlpha(int color, float m)

Methods inherited from class java.lang.Object

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

Field Details

MSAA_SAMPLES

protected final float[] MSAA_SAMPLES

x1

protected final float x1

x2

protected final float x2

x3

protected final float x3

y1

protected final float y1

y2

protected final float y2

y3

protected final float y3

x23

protected final float x23

x13

protected final float x13

y23

protected final float y23

y13

protected final float y13

denom

protected final float denom

c1

protected final int c1

c2

protected final int c2

c3

protected final int c3

cm

protected final DirectColorModel cm

antialiasing

protected final boolean antialiasing

saved

protected WritableRaster saved

cache

protected WeakReference<int[]> cache

Constructor Details

BarycentricGradientPaintContext

public BarycentricGradientPaintContext(Point2D.Float p1,
 Point2D.Float p2,
 Point2D.Float p3,
 Color color1,
 Color color2,
 Color color3,
 AffineTransform xform,
 boolean antialiasing)

Method Details

dispose

public void dispose()

Specified by:

dispose in interface PaintContext

getColorModel

public ColorModel getColorModel()

Specified by:

getColorModel in interface PaintContext

getRaster

public Raster getRaster(int xA,
 int yA,
 int w,
 int h)

Specified by:

getRaster in interface PaintContext

fillRaster

protected void fillRaster(int xA,
 int yA,
 int w,
 int h,
 int[] data)

fillRasterMSAA

protected void fillRasterMSAA(int xA,
 int yA,
 int w,
 int h,
 int[] data)

getCachedOrCreateRaster

protected WritableRaster getCachedOrCreateRaster(int w,
 int h)

cacheRaster

protected void cacheRaster(WritableRaster ras)

createRaster

protected WritableRaster createRaster(int w,
 int h,
 int[] data)

dataFromRaster

private int[] dataFromRaster(WritableRaster wr)

mixColor3

private int mixColor3(int c1,
 int c2,
 int c3,
 float m1,
 float m2,
 float m3)

mixColor4

private int mixColor4(int c1,
 int c2,
 int c3,
 int c4,
 float m1,
 float m2,
 float m3,
 float m4)

a

private int a(int argb)

r

private int r(int argb)

g

private int g(int argb)

b

private int b(int argb)

argb

private int argb(int a,
 int r,
 int g,
 int b)

scaleColorAlpha

private int scaleColorAlpha(int color,
 float m)