/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: PageSizeResolveHandler.java 6653 2008-12-02 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.layouter.style.resolver.computed.page;
import org.jfree.layouting.LayoutProcess;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.keys.page.PageSize;
import org.jfree.layouting.input.style.keys.page.PageSizeFactory;
import org.jfree.layouting.input.style.keys.page.PageStyleKeys;
import org.jfree.layouting.input.style.values.CSSConstant;
import org.jfree.layouting.input.style.values.CSSNumericValue;
import org.jfree.layouting.input.style.values.CSSStringValue;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.input.style.values.CSSValuePair;
import org.jfree.layouting.layouter.context.LayoutContext;
import org.jfree.layouting.layouter.model.LayoutElement;
import org.jfree.layouting.layouter.style.resolver.ResolveHandler;
/**
* Creation-Date: 16.06.2006, 13:56:31
*
* @author Thomas Morgner
*/
public class PageSizeResolveHandler implements ResolveHandler
{
public PageSizeResolveHandler()
{
}
/**
* This indirectly defines the resolve order. The higher the order, the more
* dependent is the resolver on other resolvers to be complete.
*
* @return the array of required style keys.
*/
public StyleKey[] getRequiredStyles()
{
return new StyleKey[0];
}
/**
* Resolves a single property.
*
* @param currentNode
* @param style
*/
public void resolve(final LayoutProcess process,
final LayoutElement currentNode,
final StyleKey key)
{
final LayoutContext layoutContext = currentNode.getLayoutContext();
final CSSValue value = layoutContext.getValue(PageStyleKeys.SIZE);
String name = null;
if (value instanceof CSSStringValue)
{
final CSSStringValue sval = (CSSStringValue) value;
name = sval.getValue();
}
else if (value instanceof CSSConstant)
{
name = value.toString();
}
PageSize ps = null;
if (name != null)
{
ps = PageSizeFactory.getInstance().getPageSizeByName(name);
}
if (ps == null)
{
ps = process.getOutputMetaData().getDefaultPageSize();
}
// if it is stll null, then the output target is not valid.
// We will crash in that case ..
final CSSValue page =
new CSSValuePair(CSSNumericValue.createPtValue(ps.getWidth()),
CSSNumericValue.createPtValue(ps.getHeight()));
layoutContext.setValue(PageStyleKeys.SIZE, page);
}
}