/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.libraries.css.parser.stylehandler.line;
import org.pentaho.reporting.libraries.css.keys.line.AlignmentBaseline;
import org.pentaho.reporting.libraries.css.keys.line.BaselineShift;
import org.pentaho.reporting.libraries.css.keys.line.LineStyleKeys;
import org.pentaho.reporting.libraries.css.keys.line.VerticalAlign;
import org.pentaho.reporting.libraries.css.model.StyleKey;
import org.pentaho.reporting.libraries.css.parser.CSSCompoundValueReadHandler;
import org.pentaho.reporting.libraries.css.parser.CSSValueFactory;
import org.pentaho.reporting.libraries.css.parser.stylehandler.OneOfConstantsReadHandler;
import org.pentaho.reporting.libraries.css.values.CSSAutoValue;
import org.pentaho.reporting.libraries.css.values.CSSNumericType;
import org.pentaho.reporting.libraries.css.values.CSSNumericValue;
import org.pentaho.reporting.libraries.css.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
import java.util.HashMap;
import java.util.Map;
/**
* Warning: This *is* a compound property, but one if its values depend on the element structure and it changes its
* meaning if used in Tables.
*
* @author Thomas Morgner
*/
public class VerticalAlignReadHandler extends OneOfConstantsReadHandler
implements CSSCompoundValueReadHandler {
public VerticalAlignReadHandler() {
super( true );
addValue( VerticalAlign.BASELINE );
addValue( VerticalAlign.BOTTOM );
addValue( VerticalAlign.CENTRAL );
addValue( VerticalAlign.MIDDLE );
addValue( VerticalAlign.SUB );
addValue( VerticalAlign.SUPER );
addValue( VerticalAlign.TEXT_BOTTOM );
addValue( VerticalAlign.TEXT_TOP );
addValue( VerticalAlign.USE_SCRIPT );
addValue( VerticalAlign.TOP );
}
protected CSSValue lookupValue( final LexicalUnit value ) {
CSSValue constant = super.lookupValue( value );
if ( constant != null ) {
return constant;
} else if ( value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE ) {
return CSSNumericValue.createValue( CSSNumericType.PERCENTAGE,
value.getFloatValue() );
}
return CSSValueFactory.createLengthValue( value );
}
/**
* Parses the LexicalUnit and returns a map of (StyleKey, CSSValue) pairs.
*
* @param unit
* @return
*/
public Map createValues( LexicalUnit unit ) {
CSSValue value = lookupValue( unit );
HashMap map = new HashMap();
map.put( LineStyleKeys.VERTICAL_ALIGN, value );
map.put( LineStyleKeys.ALIGNMENT_ADJUST, CSSAutoValue.getInstance() );
map.put( LineStyleKeys.DOMINANT_BASELINE, CSSAutoValue.getInstance() );
if ( CSSAutoValue.getInstance().equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.BASELINE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.BASELINE.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.USE_SCRIPT );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.BOTTOM.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.AFTER_EDGE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.CENTRAL.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.CENTRAL );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.MIDDLE.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.MIDDLE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.SUB.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.USE_SCRIPT );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.SUB );
} else if ( VerticalAlign.SUPER.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.USE_SCRIPT );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.SUPER );
} else if ( VerticalAlign.TEXT_BOTTOM.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.TEXT_AFTER_EDGE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.TEXT_TOP.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.TEXT_BEFORE_EDGE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.TOP.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.BEFORE_EDGE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
} else if ( VerticalAlign.USE_SCRIPT.equals( value ) ) {
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.USE_SCRIPT );
map.put( LineStyleKeys.BASELINE_SHIFT, CSSAutoValue.getInstance() );
} else {
// Todo: handle the case when valign is a length or percentage
map.put( LineStyleKeys.ALIGNMENT_BASELINE, AlignmentBaseline.BASELINE );
map.put( LineStyleKeys.BASELINE_SHIFT, BaselineShift.BASELINE );
map.put( LineStyleKeys.ALIGNMENT_ADJUST, value );
}
return map;
}
public StyleKey[] getAffectedKeys() {
return new StyleKey[] {
LineStyleKeys.VERTICAL_ALIGN,
LineStyleKeys.ALIGNMENT_BASELINE,
LineStyleKeys.DOMINANT_BASELINE,
LineStyleKeys.ALIGNMENT_ADJUST,
LineStyleKeys.BASELINE_SHIFT
};
}
}