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/**
* ===========================================
* 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: LayoutStyleImpl.java 6489 2008-11-28 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.layouter.style;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.StyleKeyRegistry;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.layouter.context.LayoutStyle;
/**
* Unlike the old JFreeReport stylesheet, this implementation has no inheritance
* at all. It needs to be resolved manually, which is no bad thing, as we have
* to do this anyway during the computation.
*
* @author Thomas Morgner
*/
public final class LayoutStyleImpl implements LayoutStyle
{
private CSSValue[] values;
private Object reference;
public LayoutStyleImpl()
{
}
public Object getReference()
{
return reference;
}
public void setReference(final Object reference)
{
this.reference = reference;
}
public synchronized CSSValue getValue(final StyleKey key)
{
if (values == null)
{
return null;
}
return values[key.getIndex()];
}
public synchronized void setValue(final StyleKey key, final CSSValue value)
{
if (values == null)
{
values = new CSSValue[StyleKeyRegistry.getRegistry().getKeyCount()];
}
values[key.getIndex()] = value;
}
// todo: Make sure we call dispose once the layout style goes out of context
public synchronized void dispose()
{
}
public synchronized LayoutStyleImpl createCopy()
{
final LayoutStyleImpl style = new LayoutStyleImpl();
if (values == null)
{
style.values = null;
return style;
}
style.values = (CSSValue[]) values.clone();
return style;
}
public boolean isClean()
{
if (values == null)
{
return true;
}
for (int i = 0; i < values.length; i++)
{
if (values[i] != null)
{
return false;
}
}
return true;
}
public boolean copyFrom(final LayoutStyle style)
{
if (style instanceof LayoutStyleImpl == false)
{
return false;
}
final LayoutStyleImpl rawstyle = (LayoutStyleImpl) style;
if (rawstyle.values == null)
{
return true;
}
if (values == null)
{
values = (CSSValue[]) rawstyle.values.clone();
return true;
}
final int length = rawstyle.values.length;
for (int i = 0; i < length; i++)
{
final CSSValue o = rawstyle.values[i];
if (o != null)
{
values[i] = o;
}
}
return true;
}
}
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