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/**
* =============================================
* LibCSS: A free document archive library
* =============================================
*
* Project Info: http://reporting.pentaho.org/libcss/
*
* (C) Copyright 2007,2008, 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.]
*
* ------------
* StyleRule.java
* ------------
*/
package org.jfree.layouting.input.style;
import java.io.Serializable;
/**
* Creation-Date: 23.11.2005, 10:50:15
*
* @author Thomas Morgner
*/
public abstract class StyleRule implements Serializable, Cloneable
{
private StyleSheet parentStyle;
private StyleRule parentRule;
private boolean readOnly;
private StyleKeyRegistry styleKeyRegistry;
protected StyleRule(final StyleKeyRegistry styleKeyRegistry)
{
if (styleKeyRegistry == null)
{
throw new NullPointerException();
}
this.styleKeyRegistry = styleKeyRegistry;
}
protected StyleRule(final StyleSheet parentStyle,
final StyleRule parentRule)
{
if (parentStyle == null)
{
this.styleKeyRegistry = StyleKeyRegistry.getRegistry();
}
else
{
this.styleKeyRegistry = parentStyle.getStyleKeyRegistry();
}
this.parentStyle = parentStyle;
this.parentRule = parentRule;
}
public StyleKeyRegistry getStyleKeyRegistry()
{
return styleKeyRegistry;
}
public StyleSheet getParentStyle()
{
return parentStyle;
}
public StyleRule getParentRule()
{
return parentRule;
}
protected void setParentStyle(final StyleSheet parentStyle)
{
if (parentStyle == null)
{
throw new NullPointerException();
}
this.parentStyle = parentStyle;
}
protected void setParentRule(final StyleRule parentRule)
{
this.parentRule = parentRule;
}
public Object clone() throws CloneNotSupportedException
{
// parent rule and parent style are not cloned.
return super.clone();
}
public final void makeReadOnly()
{
readOnly = true;
}
public final boolean isReadOnly()
{
return readOnly;
}
}
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