Package com.sun.pdfview.pattern
Class ShaderType2.Type2PaintContext
- java.lang.Object
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- com.sun.pdfview.pattern.ShaderType2.Type2PaintContext
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- All Implemented Interfaces:
java.awt.PaintContext
- Enclosing class:
- ShaderType2
class ShaderType2.Type2PaintContext extends java.lang.Object implements java.awt.PaintContext
A simple paint context that uses an existing raster in device space to generate pixels
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Field Summary
Fields Modifier and Type Field Description private java.awt.image.ColorModel
colorModel
the color modelprivate java.awt.geom.Point2D
end
the end of the axisprivate java.awt.geom.Point2D
start
the start of the axis
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Constructor Summary
Constructors Constructor Description Type2PaintContext(java.awt.image.ColorModel colorModel, java.awt.geom.Point2D start, java.awt.geom.Point2D end)
Create a paint context
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
dispose()
java.awt.image.ColorModel
getColorModel()
java.awt.image.Raster
getRaster(int x, int y, int w, int h)
private float
getT(float xp)
t = t0 + (t1 - t0) x x'private float
getXPrime(float x, float y, float x0, float y0, float x1, float y1)
x' = (x1 - x0) * (x - x0) + (y1 - y0) * (y - y0) ------------------------------------------- (x1 - x0)^2 + (y1 - y0)^2
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Method Detail
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dispose
public void dispose()
- Specified by:
dispose
in interfacejava.awt.PaintContext
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getColorModel
public java.awt.image.ColorModel getColorModel()
- Specified by:
getColorModel
in interfacejava.awt.PaintContext
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getRaster
public java.awt.image.Raster getRaster(int x, int y, int w, int h)
- Specified by:
getRaster
in interfacejava.awt.PaintContext
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getXPrime
private float getXPrime(float x, float y, float x0, float y0, float x1, float y1)
x' = (x1 - x0) * (x - x0) + (y1 - y0) * (y - y0) ------------------------------------------- (x1 - x0)^2 + (y1 - y0)^2
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getT
private float getT(float xp)
t = t0 + (t1 - t0) x x'
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