Package com.sun.pdfview.pattern
Class ShaderType2.Type2PaintContext
java.lang.Object
com.sun.pdfview.pattern.ShaderType2.Type2PaintContext
- All Implemented Interfaces:
PaintContext
- Enclosing class:
ShaderType2
A simple paint context that uses an existing raster in device
space to generate pixels
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate ColorModel
the color modelprivate Point2D
the end of the axisprivate Point2D
the start of the axis -
Constructor Summary
ConstructorsConstructorDescriptionType2PaintContext
(ColorModel colorModel, Point2D start, Point2D end) Create a paint context -
Method Summary
Modifier and TypeMethodDescriptionvoid
dispose()
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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Field Details
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colorModel
the color model -
start
the start of the axis -
end
the end of the axis
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Constructor Details
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Type2PaintContext
Type2PaintContext(ColorModel colorModel, Point2D start, Point2D end) Create a paint context
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Method Details
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dispose
public void dispose()- Specified by:
dispose
in interfacePaintContext
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getColorModel
- Specified by:
getColorModel
in interfacePaintContext
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getRaster
- Specified by:
getRaster
in interfacePaintContext
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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 -
getT
private float getT(float xp) t = t0 + (t1 - t0) x x'
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