com.wildcrest.j2printerworks
Class PageEject

java.lang.Object
  com.wildcrest.j2printerworks.PageEject

All Implemented Interfaces:

Flowable

public class PageEject

extends java.lang.Object

implements Flowable

A Flowable that causes the next Flowable to start at the top of the next page.

For example, when using J2FlowPrinter to print a sequence of Flowables, the sequence:

     flowPrinter.addFlowable(flowable1);
     flowPrinter.addFlowable(new PageEject());
     flowPrinter.addFlowable(flowable2);

will cause flowable2 to start on a new page.

Constructor Summary

PageEject()
Construct a PageEject object

Method Summary

boolean	doneX() Returns whether there is no more of this Flowable object to print horizontally.
boolean	doneY() Returns whether there is no more of this Flowable object to print vertically.
void	printFlowable(java.awt.Graphics g, int availableWidth, int availableHeight, int nextFullPageWidth, int nextFullPageHeight) Print the next sequential section of this Flowable object that fits into the next incremental area.
void	resetFlowable() Reset the Flowable object so that it starts printing from the beginning.
int	usedX() Returns the amount this Flowable object was able to advance horizontally in the last printFlowable call.
int	usedY() Returns the amount this Flowable object was able to advance vertically in the last printFlowable call.

Methods inherited from class java.lang.Object

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

Constructor Detail

PageEject

public PageEject()

Construct a PageEject object

Method Detail

printFlowable

public void printFlowable(java.awt.Graphics g,
                          int availableWidth,
                          int availableHeight,
                          int nextFullPageWidth,
                          int nextFullPageHeight)

Description copied from interface: Flowable

Print the next sequential section of this Flowable object that fits into the next incremental area.

Specified by:

printFlowable in interface Flowable

Parameters:

g - context into which the page is to be drawn (null means advance but don't actually print)

availableWidth - horizontal amount into which the next sequential amount of this Flowable is to be printed.

availableHeight - vertical amount into which the next sequential amount of this Flowable is to be printed.

nextFullPageWidth - horizontal size of next full page (lets Flowables decide whether to opt for next page).

nextFullPageHeight - vertical size of next full page (lets Flowables decide whether to opt for next page).

The above parameters specify a rectangular area of size width by height (height = down the page) in pixels (72 dpi printing "points"). A Flowable object is assumed to print in "raster" order (over then down). Assumes upon entry that translation and scale are already set up so that 0,0 is the upper left corner to print and width and height are already increased by the overall printer scale. Flowable object must return Graphics context translation and scale to values at entry if changed during printing. Upon return from printFlowable, the doneX, doneY, usedX, and usedY methods describe the resulting state of the Flowable, based on its ability to make progress. Return values of usedX and usedY are to be specified in same scale as availableWidth and availableHeight were given.

usedX

public int usedX()

Description copied from interface: Flowable

Returns the amount this Flowable object was able to advance horizontally in the last printFlowable call.

Specified by:

usedX in interface Flowable

usedY

public int usedY()

Description copied from interface: Flowable

Returns the amount this Flowable object was able to advance vertically in the last printFlowable call.

Specified by:

usedY in interface Flowable

doneX

public boolean doneX()

Description copied from interface: Flowable

Returns whether there is no more of this Flowable object to print horizontally.

Specified by:

doneX in interface Flowable

doneY

public boolean doneY()

Description copied from interface: Flowable

Returns whether there is no more of this Flowable object to print vertically.

Specified by:

doneY in interface Flowable

resetFlowable

public void resetFlowable()

Description copied from interface: Flowable

Reset the Flowable object so that it starts printing from the beginning.

Specified by:

resetFlowable in interface Flowable