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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: StyleBuilder.java 6489 2008-11-28 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.modules.output.html;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.keys.box.BoxStyleKeys;
import org.jfree.layouting.input.style.values.CSSValue;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.base.util.StringUtils;
/**
* Creation-Date: 26.11.2006, 12:46:22
*
* @author Thomas Morgner
*/
public class StyleBuilder
{
private static final String INDENT = " ";
private boolean compact;
private Map backend;
private Map parentBackend;
public StyleBuilder(final boolean compact, final StyleBuilder parent)
{
this(compact);
if (parent != null)
{
this.parentBackend = new TreeMap();
if (parent.parentBackend != null)
{
this.parentBackend.putAll(parent.parentBackend);
}
this.parentBackend.putAll(parent.backend);
}
}
public StyleBuilder(final boolean compact)
{
this.compact = compact;
this.backend = new TreeMap();
this.parentBackend = null;
}
public void append(final StyleKey key, final CSSValue value)
{
if (value == null)
{
return;
}
final String cssText = value.getCSSText();
final String name = key.getName();
if (parentBackend == null || key.isInherited() == false)
{
backend.put(name, cssText);
return;
}
if (parentContains(name, cssText) == false)
{
backend.put(name, cssText);
}
}
public void append(final String key, final boolean inheritable, final String value)
{
if (parentBackend == null || inheritable == false)
{
backend.put(key, value);
return;
}
if (parentContains(key, value) == false)
{
backend.put(key, value);
}
}
public void append(final StyleKey key, final String value, final String unit)
{
if (value == null)
{
return;
}
final String textvalue = value + unit;
final String name = key.getName();
if (parentBackend == null || key.isInherited() == false)
{
backend.put(name, textvalue);
return;
}
if (parentContains(name, textvalue) == false)
{
backend.put(name, textvalue);
}
}
public void append(final StyleKey key, final String text)
{
final String name = key.getName();
if (parentBackend == null || key.isInherited() == false)
{
backend.put(name, text);
return;
}
if (parentContains(name, text) == false)
{
backend.put(name, text);
}
}
//
// public void append(final String key, final String value, final String unit)
// {
// final String textvalue = value + unit;
// if (parentBackend == null)
// {
// backend.put(key, textvalue);
// return;
// }
//
// if (parentContains(key, textvalue) == false)
// {
// backend.put(key, textvalue);
// }
// }
public boolean parentContains(final String key, final String value)
{
if (parentBackend == null)
{
return false;
}
final Object o1 = parentBackend.get(key);
return ObjectUtilities.equal(o1, value);
}
public String toString()
{
final StringBuffer style = new StringBuffer();
if (compact == false)
{
final Iterator it = backend.entrySet().iterator();
while (it.hasNext())
{
if (style.length() != 0)
{
style.append(StringUtils.getLineSeparator());
}
style.append(INDENT);
final Map.Entry entry = (Map.Entry) it.next();
style.append(entry.getKey());
style.append(": ");
style.append(entry.getValue());
style.append(';');
}
}
else
{
final Iterator it = backend.entrySet().iterator();
while (it.hasNext())
{
final Map.Entry entry = (Map.Entry) it.next();
style.append(entry.getKey());
style.append(": ");
style.append(entry.getValue());
style.append("; ");
}
}
return style.toString();
}
public static void main(final String[] args)
{
final StyleBuilder level1 = new StyleBuilder(false);
level1.append(BoxStyleKeys.PADDING_TOP, "red");
final StyleBuilder level2 = new StyleBuilder(false, level1);
level2.append(BoxStyleKeys.PADDING_TOP, "red");
final StyleBuilder level3 = new StyleBuilder(false, level2);
level3.append(BoxStyleKeys.PADDING_TOP, "red");
}
public boolean isEmpty()
{
return backend.isEmpty();
}
}
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