Class Page

java.lang.Object

org.apache.fop.area.AreaTreeObject

org.apache.fop.area.Page

All Implemented Interfaces:

Serializable, Cloneable

public class Page
extends AreaTreeObject
implements Serializable

The page. This holds the contents of the page. Each region is added. The unresolved references area added so that if the page is serialized then it will handle the resolving properly after being reloaded. This is serializable so it can be saved to cache to save memory if there are forward references. The page is cloneable so the page master can make copies of the top level page and regions.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	fakeNonEmpty	Set to true to make this page behave as if it were not empty.
private RegionViewport	regionAfter
private RegionViewport	regionBefore
private RegionViewport	regionBody
private RegionViewport	regionEnd
private RegionViewport	regionStart
private static final long	serialVersionUID
private Map<String, List<Resolvable>>	unresolved

Fields inherited from class AreaTreeObject

extensionAttachments, foreignAttributes

Constructor Summary

Constructors

Constructor	Description
Page()	Empty constructor
Page(SimplePageMaster spm)	Constructor

Method Summary

Modifier and Type	Method	Description
Object	clone()
void	fakeNonEmpty()	Call this method to force this page to pretend not to be empty.
RegionViewport	getRegionViewport(int areaClass)	Get the region from this page.
Map<String, List<Resolvable>>	getUnresolvedReferences()	Get the map unresolved references from this page.
boolean	isEmpty()	Indicates whether any FOs have been added to the body region
private static RegionViewport	makeRegionViewport(Region r, FODimension reldims, CTM pageCTM)	Creates a RegionViewport Area object for this pagination Region.
private static void	setRegionReferencePosition(RegionReference rr, Region r, Rectangle2D absRegVPRect)	Set the region reference position within the region viewport.
void	setRegionViewport(int areaclass, RegionViewport port)	Set the region on this page.
void	setUnresolvedReferences(Map<String, List<Resolvable>> unres)	Set the unresolved references on this page for serializing.
void	setWritingModeTraits(WritingModeTraitsGetter wmtg)	Sets the writing mode traits for the region viewports of this page.

Methods inherited from class AreaTreeObject

addExtensionAttachment, getExtensionAttachments, getForeignAttributes, getForeignAttributeValue, hasExtensionAttachments, setExtensionAttachments, setForeignAttribute, setForeignAttributes

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

regionBefore

private RegionViewport regionBefore

regionStart

private RegionViewport regionStart

regionBody

private RegionViewport regionBody

regionEnd

private RegionViewport regionEnd

regionAfter

private RegionViewport regionAfter

unresolved

private Map<String, List<Resolvable>> unresolved

fakeNonEmpty

private boolean fakeNonEmpty

Set to true to make this page behave as if it were not empty.

Constructor Details

Page

public Page()

Empty constructor

Page

public Page(SimplePageMaster spm)

Constructor

Parameters:

spm - SimplePageMaster containing the dimensions for this page-reference-area

Method Details

fakeNonEmpty

public void fakeNonEmpty()

Call this method to force this page to pretend not to be empty.

makeRegionViewport

private static RegionViewport makeRegionViewport(Region r,
 FODimension reldims,
 CTM pageCTM)

Creates a RegionViewport Area object for this pagination Region.

Parameters:

r - the region the viewport is to be created for

reldims - relative dimensions

pageCTM - page coordinate transformation matrix

Returns:

the new region viewport

setRegionReferencePosition

private static void setRegionReferencePosition(RegionReference rr,
 Region r,
 Rectangle2D absRegVPRect)

Set the region reference position within the region viewport. This sets the transform that is used to place the contents of the region reference.

Parameters:

rr - the region reference area

r - the region-xxx formatting object

absRegVPRect - The region viewport rectangle in "absolute" coordinates where x=distance from left, y=distance from bottom, width=right-left height=top-bottom

setRegionViewport

public void setRegionViewport(int areaclass,
 RegionViewport port)

Set the region on this page.

Parameters:

areaclass - the area class of the region to set

port - the region viewport to set

getRegionViewport

public RegionViewport getRegionViewport(int areaClass)

Get the region from this page.

Parameters:

areaClass - the region area class

Returns:

the region viewport or null if none

isEmpty

public boolean isEmpty()

Indicates whether any FOs have been added to the body region

Returns:

whether any FOs have been added to the body region

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class AreaTreeObject

Throws:

CloneNotSupportedException

setUnresolvedReferences

public void setUnresolvedReferences(Map<String, List<Resolvable>> unres)

Set the unresolved references on this page for serializing.

Parameters:

unres - the Map of unresolved objects

getUnresolvedReferences

public Map<String, List<Resolvable>> getUnresolvedReferences()

Get the map unresolved references from this page. This should be called after deserializing to retrieve the map of unresolved references that were serialized.

Returns:

the de-serialized HashMap of unresolved objects

setWritingModeTraits

public void setWritingModeTraits(WritingModeTraitsGetter wmtg)

Sets the writing mode traits for the region viewports of this page.

Parameters:

wmtg - a WM traits getter