ImageLineSetDefault (PNGJ 2.0.1 API)

java.lang.Object
- ar.com.hjg.pngj.ImageLineSetDefault<T>

All Implemented Interfaces:

IImageLineSet<T>
```
public abstract class ImageLineSetDefault<T extends IImageLine>
extends Object
implements IImageLineSet<T>
```
Default implementation of IImageLineSet.
Supports all modes: single cursor, full rows, or partial

Field Summary

Fields
Modifier and Type Field and Description

protected int currentRow

protected T imageLine

protected List<T> imageLines

protected ImageInfo imgInfo

Fields
Modifier and Type	Field and Description
`protected int`	`currentRow`
`protected T`	`imageLine`
`protected List<T>`	`imageLines`
`protected ImageInfo`	`imgInfo`

Constructor Summary

Constructors
Constructor and Description
`ImageLineSetDefault(ImageInfo imgInfo, boolean singleCursor, int nlines, int noffset, int step)`

Method Summary

Methods
Modifier and Type	Method and Description
`protected abstract T`	`createImageLine()`
`static IImageLineSetFactory<ImageLineByte>`	`getFactoryByte()` utility function, returns default factory for `ImageLineByte`
`static IImageLineSetFactory<ImageLineInt>`	`getFactoryInt()` utility function, returns default factory for `ImageLineInt`
`T`	`getImageLine(int n)` Retrieves the image line
`boolean`	`hasImageLine(int n)` True if the set contains this image line
`int`	`imageRowToMatrixRow(int imrow)` Converts from real image row to this object row number.
`int`	`imageRowToMatrixRowStrict(int imrow)` Same as `imageRowToMatrixRow(int)`, but returns negative if invalid
`int`	`matrixRowToImageRow(int mrow)` Converts from matrix row number (0 : nRows-1) to image row number
`int`	`size()` How many lines does this object contain?

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

- Field Detail
  - imgInfo
```
protected final ImageInfo imgInfo
```
  - imageLines
```
protected List<T extends IImageLine> imageLines
```
  - imageLine
```
protected T extends IImageLine imageLine
```
  - currentRow
```
protected int currentRow
```
- Constructor Detail
  - ImageLineSetDefault
```
public ImageLineSetDefault(ImageInfo imgInfo,
                   boolean singleCursor,
                   int nlines,
                   int noffset,
                   int step)
```
- Method Detail
  - createImageLine
```
protected abstract T createImageLine()
```
  - getImageLine
```
public T getImageLine(int n)
```
    Retrieves the image line
    Warning: the argument is the row number in the original image
    If this is a cursor, no check is done, always the same row is returned
    
    Specified by:
    
    getImageLine in interface IImageLineSet<T extends IImageLine>
  - hasImageLine
```
public boolean hasImageLine(int n)
```
    True if the set contains this image line
    Warning: the argument is the row number in the original image
    If this works as cursor, this returns true only if that is the number of its "current" line
    
    Specified by:
    
    hasImageLine in interface IImageLineSet<T extends IImageLine>
  - size
```
public int size()
```
    How many lines does this object contain?
    
    Specified by:
    
    size in interface IImageLineSet<T extends IImageLine>
  - imageRowToMatrixRowStrict
```
public int imageRowToMatrixRowStrict(int imrow)
```
    Same as imageRowToMatrixRow(int), but returns negative if invalid
  - matrixRowToImageRow
```
public int matrixRowToImageRow(int mrow)
```
    Converts from matrix row number (0 : nRows-1) to image row number
    
    Parameters:
    mrow - Matrix row number
    
    Returns:
    Image row number. Returns trash if mrow is invalid
  - imageRowToMatrixRow
```
public int imageRowToMatrixRow(int imrow)
```
    Converts from real image row to this object row number.
    Warning: this always returns a valid matrix row (clamping on 0 : nrows-1, and rounding down)
    Eg: rowOffset=4,rowStep=2 imageRowToMatrixRow(17) returns 6 , imageRowToMatrixRow(1) returns 0
  - getFactoryInt
```
public static IImageLineSetFactory<ImageLineInt> getFactoryInt()
```
    utility function, returns default factory for ImageLineInt
  - getFactoryByte
```
public static IImageLineSetFactory<ImageLineByte> getFactoryByte()
```
    utility function, returns default factory for ImageLineByte

Class ImageLineSetDefault<T extends IImageLine>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

imgInfo

imageLines

imageLine

currentRow

Constructor Detail

ImageLineSetDefault

Method Detail

createImageLine

getImageLine

hasImageLine

size

imageRowToMatrixRowStrict

matrixRowToImageRow

imageRowToMatrixRow

getFactoryInt

getFactoryByte