| java.lang.Object
 java.awt.MultipleGradientPaintContext
java.awt.RadialGradientPaintContext
| RadialGradientPaintContext | | final class RadialGradientPaintContext extends MultipleGradientPaintContext (Code) | | Provides the actual implementation for the RadialGradientPaint.
This is where the pixel processing is done. A RadialGradienPaint
only supports circular gradients, but it should be possible to scale
the circle to look approximately elliptical, by means of a
gradient transform passed into the RadialGradientPaint constructor.
author:
Nicholas Talian, Vincent Hardy, Jim Graham, Jerry Evans |
| Constructor Summary | |
| | RadialGradientPaintContext(RadialGradientPaint paint, ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform t, RenderingHints hints, float cx, float cy, float r, float fx, float fy, float[] fractions, Color[] colors, CycleMethod cycleMethod, ColorSpaceType colorSpace)
Constructor for RadialGradientPaintContext.
Parameters:
paint - the RadialGradientPaint from which this contextis created
Parameters:
cm - the ColorModel that receivesthe Paint data (this is used only as a hint)
Parameters:
deviceBounds - the device space bounding box of the graphics primitive being rendered
Parameters:
userBounds - the user space bounding box of the graphics primitive being rendered
Parameters:
t - the AffineTransform from userspace into device space (gradientTransform should be concatenated with this)
Parameters:
hints - the hints that the context object uses to choosebetween rendering alternatives
Parameters:
cx - the center X coordinate in user space of the circle defining the gradient. |
| Method Summary | |
| protected void | fillRaster(int pixels, int off, int adjust, int x, int y, int w, int h)
Return a Raster containing the colors generated for the graphics
operation. |
| RadialGradientPaintContext | | RadialGradientPaintContext(RadialGradientPaint paint, ColorModel cm, Rectangle deviceBounds, Rectangle2D userBounds, AffineTransform t, RenderingHints hints, float cx, float cy, float r, float fx, float fy, float[] fractions, Color[] colors, CycleMethod cycleMethod, ColorSpaceType colorSpace)(Code) | | Constructor for RadialGradientPaintContext.
Parameters:
paint - the RadialGradientPaint from which this contextis created
Parameters:
cm - the ColorModel that receivesthe Paint data (this is used only as a hint)
Parameters:
deviceBounds - the device space bounding box of the graphics primitive being rendered
Parameters:
userBounds - the user space bounding box of the graphics primitive being rendered
Parameters:
t - the AffineTransform from userspace into device space (gradientTransform should be concatenated with this)
Parameters:
hints - the hints that the context object uses to choosebetween rendering alternatives
Parameters:
cx - the center X coordinate in user space of the circle defining the gradient. The last color of the gradient is mapped tothe perimeter of this circle.
Parameters:
cy - the center Y coordinate in user space of the circle defining the gradient. The last color of the gradient is mapped tothe perimeter of this circle.
Parameters:
r - the radius of the circle defining the extents of the color gradient
Parameters:
fx - the X coordinate in user space to which the first coloris mapped
Parameters:
fy - the Y coordinate in user space to which the first coloris mapped
Parameters:
fractions - the fractions specifying the gradient distribution
Parameters:
colors - the gradient colors
Parameters:
cycleMethod - either NO_CYCLE, REFLECT, or REPEAT
Parameters:
colorSpace - which colorspace to use for interpolation, either SRGB or LINEAR_RGB |
| fillRaster | | protected void fillRaster(int pixels, int off, int adjust, int x, int y, int w, int h)(Code) | | Return a Raster containing the colors generated for the graphics
operation.
x,y,w,h the area in device space for which colors aregenerated. |
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