org.eclipse.nebula.paperclips.core

Class PaperClips

java.lang.Object

org.eclipse.nebula.paperclips.core.PaperClips

public class PaperClips
extends java.lang.Object

This class contains static constants and methods for preparing and printing documents. Methods in this class supersede those in PrintUtil.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static boolean	debug
static int	ORIENTATION_DEFAULT Indicates that the printer's default page orientation should be used.
static int	ORIENTATION_LANDSCAPE Indicates landscape page orientation.
static int	ORIENTATION_PORTRAIT Indicates portrait page orientation.

Method Summary

Modifier and Type	Method and Description
static void	endDummyJob(org.eclipse.swt.printing.Printer printer) Ends a dummy job on the given Printer if the platform requires a dummy job.
static void	error(int code) Triggers an appropriate exception based on the passed in error code.
static void	error(int code, java.lang.String detail) Triggers an appropriate exception based on the passed in error code.
static void	error(java.lang.String detail) Triggers an unspecified exception with the passed in detail.
static boolean	getDebug() EXPERIMENTAL: Returns whether debug mode is enabled.
static org.eclipse.swt.printing.PrinterData	getDefaultPrinterData() Returns a PrinterData for the system-default printer, or the first printer if no default printer is configured.
static org.eclipse.swt.graphics.Rectangle	getMarginBounds(Margins margins, org.eclipse.swt.printing.Printer printer) Returns the bounding rectangle of the printable area which is inside the given margins on the paper.
static PageEnumeration	getPageEnumeration(PrintJob printJob, org.eclipse.swt.printing.Printer printer, org.eclipse.swt.graphics.GC gc) Returns a PageEnumeration for the passed in PrintJob on the given Printer, using the given GC.
static PrintPiece[]	getPages(PrintJob printJob, org.eclipse.swt.printing.Printer printer) Processes the print job and returns an array of pages for the given printer device.
static org.eclipse.swt.graphics.Rectangle	getPaperBounds(org.eclipse.swt.printing.Printer printer) Returns the bounding rectangle of the paper, including non-printable margins.
static org.eclipse.swt.graphics.Rectangle	getPrintableBounds(org.eclipse.swt.printing.Printer printer) Returns the bounding rectangle of the printable area on the paper.
static PrintPiece	next(PrintIterator iterator, int width, int height) Calls iterator.next(width, height) and returns the result.
static void	print(PrintJob printJob, org.eclipse.swt.printing.Printer printer) Prints the print job to the given printer.
static void	print(PrintJob printJob, org.eclipse.swt.printing.PrinterData printerData) Prints the print job to the given printer.
static void	setDebug(boolean debug) EXPERIMENTAL: Sets whether debug mode is enabled.
static void	startDummyJob(org.eclipse.swt.printing.Printer printer, java.lang.String name) Starts a dummy job on the given Printer if the platform requires it.

Methods inherited from class java.lang.Object

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

Field Detail

debug

static boolean debug

ORIENTATION_DEFAULT

public static final int ORIENTATION_DEFAULT

Indicates that the printer's default page orientation should be used.

See Also:

Constant Field Values

ORIENTATION_PORTRAIT

public static final int ORIENTATION_PORTRAIT

Indicates portrait page orientation.

See Also:

Constant Field Values

ORIENTATION_LANDSCAPE

public static final int ORIENTATION_LANDSCAPE

Indicates landscape page orientation.

See Also:

Constant Field Values

Method Detail

error

public static void error(int code)

Triggers an appropriate exception based on the passed in error code.

Parameters:

code - the SWT error code.

error

public static void error(java.lang.String detail)

Triggers an unspecified exception with the passed in detail.

Parameters:

detail - more information about error.

error

public static void error(int code,
                         java.lang.String detail)

Triggers an appropriate exception based on the passed in error code.

Parameters:

code - the SWT error code.

detail - more information about error.

setDebug

public static void setDebug(boolean debug)

EXPERIMENTAL: Sets whether debug mode is enabled. This mode may be used for troubleshooting documents that cannot be laid out for some reason (e.g. "Cannot layout page x" error occurs).

THIS API IS EXPERIMENTAL AND MAY BE REMOVED OR CHANGED IN THE FUTURE.

Parameters:

debug - true to enable debug mode, false to disable it.

getDebug

public static boolean getDebug()

EXPERIMENTAL: Returns whether debug mode is enabled.

THIS API IS EXPERIMENTAL AND MAY BE REMOVED OR CHANGED IN THE FUTURE.

Returns:

whether debug mode is enabled.

getDefaultPrinterData

public static org.eclipse.swt.printing.PrinterData getDefaultPrinterData()

Returns a PrinterData for the system-default printer, or the first printer if no default printer is configured.

Returns:

a PrinterData for the system-default printer, or the first printer if no default printer is configured.

next

public static PrintPiece next(PrintIterator iterator,
                              int width,
                              int height)

Calls iterator.next(width, height) and returns the result. This method checks multiple conditions to ensure proper usage and behavior of PrintIterators.

This method is intended to be used by PrintIterator classes, as a results-checking alternative to calling next(int, int) directly on the target iterator. All PrintIterator classes in the PaperClips library use this method instead of directly calling the PrintIterator.next(int, int) method.

Parameters:

iterator - the PrintIterator

width - the available width.

height - the available height.

Returns:

the next portion of the Print, or null if the width and height are not enough to display any of the iterator's contents.

print

public static void print(PrintJob printJob,
                         org.eclipse.swt.printing.PrinterData printerData)

Prints the print job to the given printer. This method constructs a Printer, forwards to print(PrintJob, Printer), and disposes the printer before returning.

Parameters:

printJob - the print job.

printerData - the PrinterData of the selected printer.

print

public static void print(PrintJob printJob,
                         org.eclipse.swt.printing.Printer printer)

Prints the print job to the given printer.

Parameters:

printJob - the print job.

printer - the printer device.

getPages

public static PrintPiece[] getPages(PrintJob printJob,
                                    org.eclipse.swt.printing.Printer printer)

Processes the print job and returns an array of pages for the given printer device. Each element in the returned array has already had the page orientation and page margins applied. Therefore, when calling the paint(GC, int, int) method on each page, the printer's trim should be provided as the x and y arguments. In other words, the trim is taken as a minimum margin while applying calculating margins, but the position where the page's content is drawn is determined solely by the margin, and is not offset by the trim. This behavior is helpful for screen display, and is already compensated for in the print(PrintJob, Printer) method.

Parameters:

printer - the printing device.

printJob - the print job.

Returns:

an array of all pages of the print job. Each element of the returned array represents one page in the printed document.

startDummyJob

public static void startDummyJob(org.eclipse.swt.printing.Printer printer,
                                 java.lang.String name)

Starts a dummy job on the given Printer if the platform requires it. Dummy jobs allow the various Print components of PaperClips to perform measurements required for document layout, without actually sending a job to the printer. Only Mac OS X Carbon and Linux GTK+ are known to require dummy jobs.

Parameters:

printer - the Printer hosting the dummy print job.

name - the name of the dummy print job.

endDummyJob

public static void endDummyJob(org.eclipse.swt.printing.Printer printer)

Ends a dummy job on the given Printer if the platform requires a dummy job.

Parameters:

printer - the Printer hosting the dummy print job.

getPageEnumeration

public static PageEnumeration getPageEnumeration(PrintJob printJob,
                                                 org.eclipse.swt.printing.Printer printer,
                                                 org.eclipse.swt.graphics.GC gc)

Returns a PageEnumeration for the passed in PrintJob on the given Printer, using the given GC. The Printer and GC must not be disposed while the enumeration is in use.

Parameters:

printJob - the print job

printer - the Printer device, which must not be disposed while the PageEnumeration is in use.

gc - the GC, which must not be disposed while the PageEnumeration is in use.

Returns:

a PageEnumeration for the passed in PrintJob.

getPaperBounds

public static org.eclipse.swt.graphics.Rectangle getPaperBounds(org.eclipse.swt.printing.Printer printer)

Returns the bounding rectangle of the paper, including non-printable margins.

Parameters:

printer - the printer device.

Returns:

a rectangle whose edges correspond to the edges of the paper.

getPrintableBounds

public static org.eclipse.swt.graphics.Rectangle getPrintableBounds(org.eclipse.swt.printing.Printer printer)

Returns the bounding rectangle of the printable area on the paper.

Parameters:

printer - the printer device.

Returns:

the bounding rectangle of the printable area on the paper.

getMarginBounds

public static org.eclipse.swt.graphics.Rectangle getMarginBounds(Margins margins,
                                                                 org.eclipse.swt.printing.Printer printer)

Returns the bounding rectangle of the printable area which is inside the given margins on the paper. The printer's minimum margins are reflected in the returned rectangle.

Parameters:

printer - the printer device.

margins - the desired page margins.

Returns:

the bounding rectangle on the printable area which is within the margins.