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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.fo.pagination;
// FOP
import org.apache.fop.datatypes.FODimension;
import org.apache.fop.fo.FONode;
import org.apache.fop.layoutmgr.AddLMVisitor;
// Java
import java.awt.Rectangle;
/**
* The fo:region-before element.
*/
public class RegionBefore extends RegionBA {
/**
* @see org.apache.fop.fo.FONode#FONode(FONode)
*/
public RegionBefore(FONode parent) {
super(parent, Region.BEFORE_CODE);
}
/**
* @see org.apache.fop.fo.pagination.Region#getDefaultRegionName()
*/
protected String getDefaultRegionName() {
return "xsl-region-before";
}
/**
* @see org.apache.fop.fo.pagination.Region#getRegionClassCode()
*/
public int getRegionClassCode() {
return Region.BEFORE_CODE;
}
/**
* @see org.apache.fop.fo.pagination.Region#getViewportRectangle(FODimension)
*/
public Rectangle getViewportRectangle (FODimension reldims) {
// Depends on extent, precedence and writing mode
// This should return rectangle in writing-mode coordinates relative
// to the page-reference area rectangle
// This means the origin is (start, before) and the dimensions are (ipd,bpd)
// Before is always 0, start depends on extent
// ipd depends on precedence, bpd=extent
Rectangle vpRect;
if (this.wm == WritingMode.LR_TB || this.wm == WritingMode.RL_TB) {
vpRect = new Rectangle(0, 0, reldims.ipd, getExtent());
} else {
vpRect = new Rectangle(0, 0, getExtent(), reldims.ipd);
}
if (getPrecedence() == false) {
adjustIPD(vpRect, this.wm);
}
return vpRect;
}
/**
* This is a hook for the AddLMVisitor class to be able to access
* this object.
* @param aLMV the AddLMVisitor object that can access this object.
*/
public void acceptVisitor(AddLMVisitor aLMV) {
aLMV.serveRegionBefore(this);
}
public String getName() {
return "fo:region-before";
}
}
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