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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.area;
import java.util.ArrayList;
import java.util.List;
import org.apache.fop.fo.pagination.Region;
/**
* This is a region reference area for the page regions.
* This area represents a region on the page. It is cloneable
* so the page master can make copies from the original page and regions.
*/
public class RegionReference extends Area implements Cloneable {
private int regionClass = Region.BEFORE_CODE;
private CTM ctm;
// the list of block areas from the static flow
private List blocks = new ArrayList();
private int bpd;
/**
* Create a new region reference area.
*
* @param type the region class type
*/
public RegionReference(int type) {
regionClass = type;
}
/**
* Set the Coordinate Transformation Matrix which transforms content
* coordinates in this region reference area which are specified in
* terms of "start" and "before" into coordinates in a system which
* is positioned in "absolute" directions (with origin at lower left of
* the region reference area.
*
* @param ctm the current transform to position this region
*/
public void setCTM(CTM ctm) {
this.ctm = ctm;
}
/**
* Get the current transform of this region.
*
* @return ctm the current transform to position this region
*/
public CTM getCTM() {
return this.ctm;
}
/**
* Get the block in this region.
*
* @return the list of blocks in this region
*/
public List getBlocks() {
return blocks;
}
/**
* Get the region class of this region.
*
* @return the region class
*/
public int getRegionClass() {
return regionClass;
}
/**
* Add a block area to this region reference area.
*
* @param block the block area to add
*/
public void addBlock(Block block) {
blocks.add(block);
}
/**
* Set the block-progression-dimension.
*
* @return the footnote area
*/
public void setBPD(int bpd) {
this.bpd = bpd;
}
/**
* Set the block-progression-dimension.
*
* @return the footnote area
*/
public int getBPD() {
return bpd;
}
/**
* Clone this region.
* This is used when cloning the page by the page master.
* The blocks are not copied since the master will have no blocks.
*
* @return a copy of this region reference area
*/
public Object clone() {
RegionReference rr = new RegionReference(regionClass);
rr.ctm = ctm;
rr.setIPD(getIPD());
return rr;
}
}
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