SparklineStyleSetWriteHandler.java example

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/*!
 * 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.engine.classic.extensions.modules.sparklines.xml;

import java.awt.Color;
import java.io.IOException;

import org.pentaho.reporting.engine.classic.core.modules.parser.bundle.writer.styles.BundleStyleSetWriteHandler;
import org.pentaho.reporting.engine.classic.core.style.ElementStyleSheet;
import org.pentaho.reporting.engine.classic.core.util.beans.ColorValueConverter;
import org.pentaho.reporting.engine.classic.extensions.modules.sparklines.SparklineModule;
import org.pentaho.reporting.engine.classic.extensions.modules.sparklines.SparklineStyleKeys;
import org.pentaho.reporting.libraries.xmlns.common.AttributeList;
import org.pentaho.reporting.libraries.xmlns.writer.XmlWriter;

public class SparklineStyleSetWriteHandler implements BundleStyleSetWriteHandler {
  public SparklineStyleSetWriteHandler() {
  }

  public void writeStyle( final XmlWriter writer, final ElementStyleSheet style ) throws IOException {
    final AttributeList bandStyleAtts = new AttributeList();
    if ( style.isLocalKey( SparklineStyleKeys.HIGH_COLOR ) ) {
      final Color value = (Color) style.getStyleProperty( SparklineStyleKeys.HIGH_COLOR );
      bandStyleAtts.setAttribute( SparklineModule.NAMESPACE, "high-color", ColorValueConverter.colorToString( value ) );
    }
    if ( style.isLocalKey( SparklineStyleKeys.MEDIUM_COLOR ) ) {
      final Color value = (Color) style.getStyleProperty( SparklineStyleKeys.MEDIUM_COLOR );
      bandStyleAtts
          .setAttribute( SparklineModule.NAMESPACE, "medium-color", ColorValueConverter.colorToString( value ) );
    }
    if ( style.isLocalKey( SparklineStyleKeys.LOW_COLOR ) ) {
      final Color value = (Color) style.getStyleProperty( SparklineStyleKeys.LOW_COLOR );
      bandStyleAtts.setAttribute( SparklineModule.NAMESPACE, "low-color", ColorValueConverter.colorToString( value ) );
    }
    if ( style.isLocalKey( SparklineStyleKeys.LAST_COLOR ) ) {
      final Color value = (Color) style.getStyleProperty( SparklineStyleKeys.LAST_COLOR );
      bandStyleAtts.setAttribute( SparklineModule.NAMESPACE, "last-color", ColorValueConverter.colorToString( value ) );
    }

    if ( bandStyleAtts.isEmpty() == false ) {
      writer.writeTag( SparklineModule.NAMESPACE, "spark-styles", bandStyleAtts, XmlWriter.CLOSE );
    }
  }
}