/**
* ===========================================
* 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: ParagraphConverter.java,v 1.6 2007/04/02 11:41:12 taqua Exp $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.swing.converter;
import javax.swing.text.AttributeSet;
import javax.swing.text.Element;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import org.jfree.layouting.input.style.keys.box.BoxStyleKeys;
import org.jfree.layouting.input.style.keys.line.LineStyleKeys;
import org.jfree.layouting.input.style.keys.text.TextAlign;
import org.jfree.layouting.input.style.keys.text.TextStyleKeys;
import org.jfree.layouting.input.style.values.CSSNumericType;
import org.jfree.layouting.input.style.values.CSSNumericValue;
import org.jfree.layouting.input.swing.Converter;
import org.jfree.layouting.input.swing.ConverterAttributeSet;
import org.jfree.util.Log;
/**
* This class handles convertions of paragraph style attributes to css style attributes.
*/
public class ParagraphConverter implements Converter {
/**
* Converts a style key and a style value to a CSS compatible style key and style value.
* A conversion can result in more than one key and value.
*
* @param key The style key to convert.
* @param value The style value to convert.
* @param cssAttr The current converted CSS attributes for the current element.
* @param context The current Element.
* @return The conversion result or null if no converstion has been done.
*/
public ConverterAttributeSet convertToCSS (Object key, Object value, ConverterAttributeSet cssAttr,
Element context)
{
if(key instanceof StyleConstants.ParagraphConstants)
{
final StyleConstants.ParagraphConstants paragraphConstant = (StyleConstants.ParagraphConstants)key;
return handleParagraphConstants(paragraphConstant, value);
}
return null;
}
/**
* Handles the convertions of <code>StyleConstants.ParagraphConstants</code> key type.
*
* @param paragraphConstant The style key.
* @param value The style value.
* @return The conversion result or null if no converstion has been done.
*/
private ConverterAttributeSet handleParagraphConstants (
StyleConstants.ParagraphConstants paragraphConstant, Object value)
{
final ConverterAttributeSet attr = new ConverterAttributeSet();
if(paragraphConstant == StyleConstants.FirstLineIndent)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.PT, Double.parseDouble(value.toString()));
attr.addAttribute(TextStyleKeys.TEXT_INDENT.getName(), cssNumericValue);
}
else if(paragraphConstant == StyleConstants.RightIndent)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.PT, Double.parseDouble(value.toString()));
attr.addAttribute(BoxStyleKeys.MARGIN_RIGHT.getName(), cssNumericValue);
}
else if(paragraphConstant == StyleConstants.LeftIndent)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.PT, Double.parseDouble(value.toString()));
attr.addAttribute(BoxStyleKeys.MARGIN_LEFT.getName(), cssNumericValue);
}
else if(paragraphConstant == StyleConstants.LineSpacing)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.EM, Double.parseDouble(value.toString()));
attr.addAttribute(LineStyleKeys.LINE_HEIGHT, cssNumericValue);
}
else if(paragraphConstant == StyleConstants.SpaceAbove)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.PT, Double.parseDouble(value.toString()));
attr.addAttribute(BoxStyleKeys.MARGIN_TOP.getName(), cssNumericValue);
}
else if(paragraphConstant == StyleConstants.SpaceBelow)
{
final CSSNumericValue cssNumericValue = CSSNumericValue.createValue(CSSNumericType.PT, Double.parseDouble(value.toString()));
attr.addAttribute(BoxStyleKeys.MARGIN_BOTTOM.getName(), cssNumericValue);
}
else if(paragraphConstant == StyleConstants.Alignment)
{
Object val = null;
int interger = Integer.parseInt(value.toString());
if(interger == StyleConstants.ALIGN_CENTER)
{
val = TextAlign.CENTER;
}
else if(interger == StyleConstants.ALIGN_JUSTIFIED)
{
val = TextAlign.JUSTIFY;
}
else if(interger == StyleConstants.ALIGN_LEFT)
{
val = TextAlign.LEFT;
}
else if(interger == StyleConstants.ALIGN_RIGHT)
{
val = TextAlign.RIGHT;
}
attr.addAttribute(TextStyleKeys.TEXT_ALIGN.getName(), val);
}
/*else if(paragraphConstant == StyleConstants.Orientation)
{
//attr.addAttribute(TextStyleKeys.BLOCK_PROGRESSION.getName(), null);
}*/
else
{
// StyleConstants.TabSet @see TabSet class
Log.debug(new Log.SimpleMessage("Unkown type of paragraphe attribute", paragraphConstant));
return null;
}
return attr;
}
}