java.awt
Class GradientPaintContext

java.lang.Object
  java.awt.GradientPaintContext

All Implemented Interfaces:

PaintContext

class GradientPaintContext

extends Object

implements PaintContext

Field Summary

(package private) static WeakReference	cached
(package private) static ColorModel	cachedModel
(package private) boolean	cyclic
(package private) double	dx
(package private) double	dy
(package private) int[]	interp
(package private) ColorModel	model
(package private) Raster	saved
(package private) double	x1
(package private) static ColorModel	xbgrmodel
(package private) static ColorModel	xrgbmodel
(package private) double	y1

Constructor Summary

GradientPaintContext(ColorModel cm, Point2D p1, Point2D p2, AffineTransform xform, Color c1, Color c2, boolean cyclic)

Method Summary

(package private) void	clipFillRaster(int[] pixels, int off, int adjust, int w, int h, double rowrel, double dx, double dy)
(package private) void	cycleFillRaster(int[] pixels, int off, int adjust, int w, int h, double rowrel, double dx, double dy)
void	dispose() Release the resources allocated for the operation.
(package private) static Raster	getCachedRaster(ColorModel cm, int w, int h)
ColorModel	getColorModel() Return the ColorModel of the output.
Raster	getRaster(int x, int y, int w, int h) Return a Raster containing the colors generated for the graphics operation.
(package private) static void	putCachedRaster(ColorModel cm, Raster ras)

Methods inherited from class java.lang.Object

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

Field Detail

xrgbmodel

static ColorModel xrgbmodel

xbgrmodel

static ColorModel xbgrmodel

cachedModel

static ColorModel cachedModel

cached

static WeakReference cached

x1

double x1

y1

double y1

dx

double dx

dy

double dy

cyclic

boolean cyclic

interp

int[] interp

saved

Raster saved

model

ColorModel model

Constructor Detail

GradientPaintContext

public GradientPaintContext(ColorModel cm,
                            Point2D p1,
                            Point2D p2,
                            AffineTransform xform,
                            Color c1,
                            Color c2,
                            boolean cyclic)

Method Detail

getCachedRaster

static Raster getCachedRaster(ColorModel cm,
                              int w,
                              int h)

putCachedRaster

static void putCachedRaster(ColorModel cm,
                            Raster ras)

dispose

public void dispose()

Release the resources allocated for the operation.

Specified by:

dispose in interface PaintContext

getColorModel

public ColorModel getColorModel()

Return the ColorModel of the output.

Specified by:

getColorModel in interface PaintContext

Returns:

the ColorModel of the output.

getRaster

public Raster getRaster(int x,
                        int y,
                        int w,
                        int h)

Return a Raster containing the colors generated for the graphics operation.

Specified by:

getRaster in interface PaintContext

Parameters:

x - the x coordinate of the area in device space for which colors are generated.

y - the y coordinate of the area in device space for which colors are generated.

w - the width of the area in device space

h - the height of the area in device space

Returns:

a Raster representing the specified rectangular area and containing the colors generated for the graphics operation.

cycleFillRaster

void cycleFillRaster(int[] pixels,
                     int off,
                     int adjust,
                     int w,
                     int h,
                     double rowrel,
                     double dx,
                     double dy)

clipFillRaster

void clipFillRaster(int[] pixels,
                    int off,
                    int adjust,
                    int w,
                    int h,
                    double rowrel,
                    double dx,
                    double dy)