Class PageRasterDisplayCallback

java.lang.Object

org.ghost4j.display.PageRasterDisplayCallback

All Implemented Interfaces:

DisplayCallback

public class PageRasterDisplayCallback
extends Object
implements DisplayCallback

Display callback in charge of extracting raw page rasters (PageRaster)

Field Summary

Fields

Modifier and Type	Field	Description
private List<PageRaster>	rasters

Constructor Summary

Constructors

Constructor	Description
PageRasterDisplayCallback()	Constructor

Method Summary

Modifier and Type	Method	Description
void	displayClose()	Method called when device has been closed.
void	displayOpen()	Method called when new device has been opened.
void	displayPage(int width, int height, int raster, int format, int copies, int flush, byte[] imageData)	Method called on show page.
void	displayPreClose()	Method called when device is about to be closed.
void	displayPreSize(int width, int height, int raster, int format)	Method called when device is about to be resized.
void	displaySize(int width, int height, int raster, int format)	Method called when device has been resized.
void	displaySync()	Method called on page flush.
void	displayUpdate(int x, int y, int width, int height)	Method called to notify whenever a portion of the raster is updated.
List<PageRaster>	getRasters()

Methods inherited from class Object

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

Field Details

rasters

private List<PageRaster> rasters

Constructor Details

PageRasterDisplayCallback

public PageRasterDisplayCallback()

Constructor

Method Details

displayClose

public void displayClose()
                  throws GhostscriptException

Description copied from interface: DisplayCallback

Method called when device has been closed. This is the last event from this device.

Specified by:

displayClose in interface DisplayCallback

Throws:

GhostscriptException

displayOpen

public void displayOpen()
                 throws GhostscriptException

Description copied from interface: DisplayCallback

Method called when new device has been opened. This is the first event from this device.

Specified by:

displayOpen in interface DisplayCallback

Throws:

GhostscriptException

displayPage

public void displayPage(int width,
 int height,
 int raster,
 int format,
 int copies,
 int flush,
 byte[] imageData)
                 throws GhostscriptException

Description copied from interface: DisplayCallback

Method called on show page.

Specified by:

displayPage in interface DisplayCallback

Parameters:

width - Width

height - Height

raster - Raster

format - Format

copies - Copies

flush - Flush

imageData - Byte array representing image data. Data layout and order is controlled by the -dDisplayFormat argument.

Throws:

GhostscriptException

displayPreClose

public void displayPreClose()
                     throws GhostscriptException

Description copied from interface: DisplayCallback

Method called when device is about to be closed. Device will not be closed until this function returns.

Specified by:

displayPreClose in interface DisplayCallback

Throws:

GhostscriptException

displayPreSize

public void displayPreSize(int width,
 int height,
 int raster,
 int format)
                    throws GhostscriptException

Description copied from interface: DisplayCallback

Method called when device is about to be resized.

Specified by:

displayPreSize in interface DisplayCallback

Parameters:

width - Width

height - Height

raster - Raster

format - Format

Throws:

GhostscriptException

displaySize

public void displaySize(int width,
 int height,
 int raster,
 int format)
                 throws GhostscriptException

Description copied from interface: DisplayCallback

Method called when device has been resized.

Specified by:

displaySize in interface DisplayCallback

Parameters:

width - Width

height - Height

raster - Raster

format - Format

Throws:

GhostscriptException

displaySync

public void displaySync()
                 throws GhostscriptException

Description copied from interface: DisplayCallback

Method called on page flush.

Specified by:

displaySync in interface DisplayCallback

Throws:

GhostscriptException

displayUpdate

public void displayUpdate(int x,
 int y,
 int width,
 int height)
                   throws GhostscriptException

Description copied from interface: DisplayCallback

Method called to notify whenever a portion of the raster is updated.

Specified by:

displayUpdate in interface DisplayCallback

Parameters:

x - X coordinate

y - Y coordinate

width - Width

height - Height

Throws:

GhostscriptException

getRasters

public List<PageRaster> getRasters()