Package com.stepover.opensignatureapi.renderer

Class SoDocumentRenderer

java.lang.Object

com.stepover.opensignatureapi.renderer.SoDocumentRenderer

All Implemented Interfaces:

DocumentRenderer

public class SoDocumentRenderer
extends java.lang.Object
implements DocumentRenderer

a document renderer that uses the StepOver libraries to render the document pages for document viewing and signing

Field Summary

Fields

Modifier and Type	Field	Description
protected java.awt.image.BufferedImage[]	bufferedImages	The buffered images.
protected int	currentPage	The current page.
protected int	displayHeight	The display height.
protected int	displayWidth	The display width.
protected java.awt.Graphics2D	graphics	The graphics.
protected java.util.Vector<DocumentRendererListener>	listeners	The listeners.
static java.util.logging.Logger	logger
protected int	pageCount	The page count.
protected javax.imageio.stream.ImageInputStream[]	pageImages	The page images.
protected Dimension[]	pageSizes	The page sizes.
protected boolean	showSignButton	The show sign button.
protected SigningDevice	signingDevice	The signing device.
protected int	zoomLevel	The zoom level.

Constructor Summary

Constructors

Constructor	Description
SoDocumentRenderer(javax.imageio.stream.ImageInputStream[] pageImages, boolean showSignButton)	Instantiates a new so document renderer.

Method Summary

Modifier and Type	Method	Description
void	addListener(DocumentRendererListener listener)	Register a DocumentRendererListener for this DocumentRenderer.
Dimension	getPageSize(int pageIndex)
int	getTotalPageCount()
void	removeListener(DocumentRendererListener listener)	Remove a registered DocumentRendererListener for this DocumentRenderer.
void	render(int pageIndex, Rectangle regionOfInterest, java.awt.Graphics2D target)
protected java.awt.image.BufferedImage	scale(java.awt.image.BufferedImage bufferedImage, double scale)	Scale.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

public static final java.util.logging.Logger logger

pageSizes

protected Dimension[] pageSizes

The page sizes.

pageImages

protected javax.imageio.stream.ImageInputStream[] pageImages

The page images.

signingDevice

protected SigningDevice signingDevice

The signing device.

displayWidth

protected int displayWidth

The display width.

displayHeight

protected int displayHeight

The display height.

pageCount

protected int pageCount

The page count.

graphics

protected java.awt.Graphics2D graphics

The graphics.

bufferedImages

protected java.awt.image.BufferedImage[] bufferedImages

The buffered images.

currentPage

protected int currentPage

The current page.

zoomLevel

protected int zoomLevel

The zoom level.

listeners

protected java.util.Vector<DocumentRendererListener> listeners

The listeners.

showSignButton

protected boolean showSignButton

The show sign button.

Constructor Detail

SoDocumentRenderer

public SoDocumentRenderer(javax.imageio.stream.ImageInputStream[] pageImages,
                          boolean showSignButton)

Instantiates a new so document renderer.

Parameters:

pageImages - the page images

pageSizes - the page sizes

Method Detail

getPageSize

public Dimension getPageSize(int pageIndex)

Specified by:

getPageSize in interface DocumentRenderer

getTotalPageCount

public int getTotalPageCount()

Specified by:

getTotalPageCount in interface DocumentRenderer

render

public void render(int pageIndex,
                   Rectangle regionOfInterest,
                   java.awt.Graphics2D target)

Specified by:

render in interface DocumentRenderer

scale

protected java.awt.image.BufferedImage scale(java.awt.image.BufferedImage bufferedImage,
                                             double scale)

Scale.

Parameters:

bufferedImage - the buffered image

scale - the scaleimage

Returns:

the buffered image

addListener

public void addListener(DocumentRendererListener listener)

Description copied from interface: DocumentRenderer

Register a DocumentRendererListener for this DocumentRenderer.

IMPORTANT: once a DocumentRenderer is not used anymore (because of a "apply document renderer message" or some other reason) a registered listener has to be removed.

Specified by:

addListener in interface DocumentRenderer

Parameters:

listener - the DocumentRendererListener to be registered.

removeListener

public void removeListener(DocumentRendererListener listener)

Description copied from interface: DocumentRenderer

Remove a registered DocumentRendererListener for this DocumentRenderer.

Specified by:

removeListener in interface DocumentRenderer

Parameters:

listener - the DocumentRendererListener to be deregistered.