Package org.xhtmlrenderer.pdf

Source Code of org.xhtmlrenderer.pdf.ITextReplacedElementFactory

/*
* {{{ header & license
* Copyright (c) 2006 Wisconsin Court System
*
* This program 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 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.pdf;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xhtmlrenderer.extend.FSImage;
import org.xhtmlrenderer.extend.ReplacedElement;
import org.xhtmlrenderer.extend.ReplacedElementFactory;
import org.xhtmlrenderer.extend.UserAgentCallback;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.render.BlockBox;

public class ITextReplacedElementFactory implements ReplacedElementFactory {
  private ITextOutputDevice _outputDevice;

  private Map _radioButtonsByElem = new HashMap();
  private Map _radioButtonsByName = new HashMap();

  public ITextReplacedElementFactory(ITextOutputDevice outputDevice) {
    _outputDevice = outputDevice;
  }

  public ReplacedElement createReplacedElement(LayoutContext c, BlockBox box,
      UserAgentCallback uac, int cssWidth, int cssHeight) {
    Element e = box.getElement();
    if (e == null) {
      return null;
    }

    String nodeName = e.getNodeName();
    if (nodeName.equals("img")) {
      FSImage fsImage = uac.getImageResource(e.getAttribute("src")).getImage();
      if (fsImage != null) {
        if (cssWidth != -1 || cssHeight != -1) {
          fsImage.scale(cssWidth, cssHeight);
        }
        return new ITextImageElement(fsImage);
      }
    /*
    } else if (nodeName.equals("input")) {
      String type = e.getAttribute("type");
      if (type.equals("hidden")) {
          return new EmptyReplacedElement(0, 0);
      } else if (type.equals("checkbox")) {
        return new CheckboxFormField(c, box, cssWidth, cssHeight);
      } else if (type.equals("radio")) {
        RadioButtonFormField result = new RadioButtonFormField(
            this, c, box, cssWidth, cssHeight);
        saveResult(e, result);
        return result;
      } else {
        return new TextFormField(c, box, cssWidth, cssHeight);
      }
    } else if (nodeName.equals("select")) {
        return new SelectFormField(c, box, cssWidth, cssHeight);
    } else if (isTextarea(e)) {
        return new TextAreaFormField(c, box, cssWidth, cssHeight);
    */
    } else if (nodeName.equals("bookmark")) {
      // HACK Add box as named anchor and return placeholder
      BookmarkElement result = new BookmarkElement();
      if (e.hasAttribute("name")) {
        String name = e.getAttribute("name");
        c.addBoxId(name, box);
        result.setAnchorName(name);
      }
      return result;
    }

    return null;
  }
 
  private boolean isTextarea(Element e) {
      if (! e.getNodeName().equals("textarea")) {
          return false;
      }
     
      Node n = e.getFirstChild();
      while (n != null) {
          short nodeType = n.getNodeType();
          if (nodeType != Node.TEXT_NODE && nodeType != Node.CDATA_SECTION_NODE) {
              return false;
          }
      }
     
      return true;
  }

  private void saveResult(Element e, RadioButtonFormField result) {
    _radioButtonsByElem.put(e, result);

    String fieldName = result.getFieldName(_outputDevice, e);
    List fields = (List)_radioButtonsByName.get(fieldName);
    if (fields == null) {
      fields = new ArrayList();
      _radioButtonsByName.put(fieldName, fields);
    }
    fields.add(result);
  }

  public void reset() {
    _radioButtonsByElem = new HashMap();
    _radioButtonsByName = new HashMap();
  }

  public void remove(Element e) {
    RadioButtonFormField field = (RadioButtonFormField)_radioButtonsByElem.remove(e);
    if (field != null) {
      String fieldName = field.getFieldName(_outputDevice, e);
      List values = (List)_radioButtonsByName.get(fieldName);
      if (values != null) {
        values.remove(field);
        if (values.size() == 0) {
          _radioButtonsByName.remove(fieldName);
        }
      }
    }
  }

  public void remove(String fieldName) {
    List values = (List)_radioButtonsByName.get(fieldName);
    if (values != null) {
      for (Iterator i = values.iterator(); i.hasNext();) {
        RadioButtonFormField field = (RadioButtonFormField)i.next();
        _radioButtonsByElem.remove(field.getBox().getElement());
      }
    }

    _radioButtonsByName.remove(fieldName);
  }

  public List getRadioButtons(String name) {
    return (List)_radioButtonsByName.get(name);
  }
}
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