AxialShading

java.lang.Object
- com.inductiveautomation.rm.pdf.reader.PDFPattern
- - com.inductiveautomation.rm.pdf.reader.fps.ShadingPattern
  - - com.inductiveautomation.rm.pdf.reader.fps.AxialShading

All Implemented Interfaces:

java.awt.Paint, java.awt.PaintContext, java.awt.Transparency
```
public class AxialShading
extends ShadingPattern
```
Implementation of Type 2 shadings, which vary color along a linear axis.
The shading takes a pixel in the area to be to filled and drops a perpendicular to the axis defined by coords[]. It then calculates the parametric point t of the intersection, with t running from domain[0] to domain[1] along the axis. t is then turned into a color value using the supplied pdf function. TODO: currently ignores transform

Field Summary
- Fields inherited from class com.inductiveautomation.rm.pdf.reader.fps.ShadingPattern
  ArbitraryColorSpaceShading, DeviceGrayShading, DeviceRGBShading
- Fields inherited from interface java.awt.Transparency
  BITMASK, OPAQUE, TRANSLUCENT

Constructor Summary

Constructors
Constructor Description

AxialShading(java.util.Map patternDict, java.util.Map shadingDict, PDFFile srcFile)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`doShading(int[] samples, int x, int y, int w, int h)`	Subclasses should implement this method to draw the shading.
`void`	`initializeShadingParameters(java.util.Map shadingDict, PDFFile srcFile)`	Read the shading parameters
`void`	`setDeviceTransform(java.awt.geom.AffineTransform x, java.awt.Rectangle devRect)`	Sets the transform from user space to device space

Methods inherited from class com.inductiveautomation.rm.pdf.reader.fps.ShadingPattern
createContext, dispose, getBounds, getColorModel, getInstance, getPaint, getRaster, getRGBAPixel, getTransform, getTransparency, setColorSpace

Methods inherited from class com.inductiveautomation.rm.pdf.reader.PDFPattern
getGState, getInstance

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AxialShading

public AxialShading(java.util.Map patternDict,
                    java.util.Map shadingDict,
                    PDFFile srcFile)

Method Detail
- initializeShadingParameters
```
public void initializeShadingParameters(java.util.Map shadingDict,
                                        PDFFile srcFile)
```
  Read the shading parameters
  
  Overrides:
  
  initializeShadingParameters in class ShadingPattern
- doShading
```
public void doShading(int[] samples,
                      int x,
                      int y,
                      int w,
                      int h)
```
  Description copied from class: ShadingPattern
  
  Subclasses should implement this method to draw the shading. Samples is defined to be an array of 8 bit persample/4 samples per pixel ARGB pixels. There is no padding, so all scanlines are w integers wide.
  
  Specified by:
  
  doShading in class ShadingPattern
- setDeviceTransform
```
public void setDeviceTransform(java.awt.geom.AffineTransform x,
                               java.awt.Rectangle devRect)
```
  Sets the transform from user space to device space
  
  Overrides:
  
  setDeviceTransform in class ShadingPattern