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Flying Saucer is a CSS 2.1 renderer written in Java. This artifact supports PDF output. (OpenPDF)
/*
* {{{ 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;
import org.xhtmlrenderer.simple.extend.FormSubmissionListener;
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")) {
String srcAttr = e.getAttribute("src");
if (srcAttr != null && srcAttr.length() > 0) {
FSImage fsImage = uac.getImageResource(srcAttr).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(1, 1);
} else if (type.equals("checkbox")) {
return new CheckboxFormField(c, box, cssWidth, cssHeight);
} else if (type.equals("radio")) {
//TODO finish support for Radio button
//RadioButtonFormField result = new RadioButtonFormField(
// this, c, box, cssWidth, cssHeight);
// saveResult(e, result);
//return result;
return new EmptyReplacedElement(0, 0);
} else {
return new TextFormField(c, box, cssWidth, cssHeight);
}
/*
} else if (nodeName.equals("select")) {//TODO Support select
return new SelectFormField(c, box, cssWidth, cssHeight);
} else if (isTextarea(e)) {//TODO Review if this is needed the textarea item prints fine currently
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);
}
public void setFormSubmissionListener(FormSubmissionListener listener) {
// nothing to do, form submission is handled by pdf readers
}
}