/*!
 * 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.core.testsupport.font.parser;

import org.pentaho.reporting.libraries.base.util.StringUtils;
import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.ParseException;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class GlobalMetricsReadHandler extends AbstractXmlReadHandler {
  private long ascent;
  private long descent;
  private long leading;
  private long xheight;
  private long overlinePosition;
  private long underlinePosition;
  private long strikethroughPosition;
  private long maxAscent;
  private long maxDescent;
  private long maxHeight;
  private long maxCharAdvance;
  private long italicAngle;
  private boolean uniformFontMetrics;

  public GlobalMetricsReadHandler() {
  }

  protected void startParsing( final Attributes attrs ) throws SAXException {
    ascent = parseLongOrDie( "ascent", attrs );
    descent = parseLongOrDie( "descent", attrs );
    leading = parseLongOrDie( "leading", attrs );
    xheight = parseLongOrDie( "x-height", attrs );
    overlinePosition = parseLongOrDie( "overline-position", attrs );
    underlinePosition = parseLongOrDie( "underline-position", attrs );
    strikethroughPosition = parseLongOrDie( "strike-through-position", attrs );
    maxAscent = parseLongOrDie( "max-ascent", attrs );
    maxDescent = parseLongOrDie( "max-descent", attrs );
    maxHeight = parseLongOrDie( "max-height", attrs );
    maxCharAdvance = parseLongOrDie( "max-char-advance", attrs );
    italicAngle = parseLongOrDie( "italic-angle", attrs );
    uniformFontMetrics = "true".equals( attrs.getValue( getUri(), "uniform" ) );
  }

  private long parseLongOrDie( final String attrName, final Attributes attrs ) throws ParseException {
    final String value = attrs.getValue( getUri(), attrName );
    if ( StringUtils.isEmpty( value ) ) {
      throw new ParseException( "Attribute '" + attrName + "' is missing.", getLocator() );
    }
    try {
      return Long.parseLong( value );
    } catch ( Exception e ) {
      throw new ParseException( "Attribute '" + attrName + "' with value '" + value + "'is invalid.", getLocator() );
    }
  }

  public long getAscent() {
    return ascent;
  }

  public long getDescent() {
    return descent;
  }

  public long getItalicAngle() {
    return italicAngle;
  }

  public long getLeading() {
    return leading;
  }

  public long getMaxAscent() {
    return maxAscent;
  }

  public long getMaxCharAdvance() {
    return maxCharAdvance;
  }

  public long getMaxDescent() {
    return maxDescent;
  }

  public long getMaxHeight() {
    return maxHeight;
  }

  public long getOverlinePosition() {
    return overlinePosition;
  }

  public long getStrikethroughPosition() {
    return strikethroughPosition;
  }

  public long getUnderlinePosition() {
    return underlinePosition;
  }

  public boolean isUniformFontMetrics() {
    return uniformFontMetrics;
  }

  public long getXheight() {
    return xheight;
  }

  public Object getObject() throws SAXException {
    return null;
  }
}