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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.layoutmgr;
import org.apache.fop.fo.flow.PageNumber;
import org.apache.fop.area.inline.InlineArea;
import org.apache.fop.area.inline.TextArea;
import org.apache.fop.area.Trait;
import org.apache.fop.fonts.Font;
/**
* LayoutManager for the fo:page-number formatting object
*/
public class PageNumberLayoutManager extends LeafNodeLayoutManager {
private PageNumber fobj;
Font font = null;
/**
* Constructor
*
* @param node the fo:page-number formatting object that creates the area
* @todo better null checking of node, font
*/
public PageNumberLayoutManager(PageNumber node) {
super(node);
fobj = node;
font = fobj.getCommonFont().getFontState(fobj.getFOEventHandler().getFontInfo());
}
public InlineArea get(LayoutContext context) {
// get page string from parent, build area
TextArea inline = new TextArea();
String str = parentLM.getCurrentPageNumber();
int width = 0;
for (int count = 0; count < str.length(); count++) {
width += font.getCharWidth(str.charAt(count));
}
inline.setTextArea(str);
inline.setIPD(width);
inline.setBPD(font.getAscender() - font.getDescender());
inline.setOffset(font.getAscender());
inline.addTrait(Trait.FONT_NAME, font.getFontName());
inline.addTrait(Trait.FONT_SIZE,
new Integer(font.getFontSize()));
return inline;
}
protected void offsetArea(LayoutContext context) {
curArea.setOffset(context.getBaseline());
}
protected void addId() {
addID(fobj.getId());
}
}
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