Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/ppt2png/WoogieDocumentConverter.java

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5.2 KiB

//
//DokeosConverter using JODConverter - Java OpenDocument Converter
//Eric Marguin <e.marguin@elixir-interactive.com>
//
//This library 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 library 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.
//http://www.gnu.org/copyleft/lesser.html
//
import java.util.Map;
import org.apache.commons.io.FilenameUtils;
import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.DocumentFormatRegistry;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException;
import com.artofsolving.jodconverter.openoffice.converter.StreamOpenOfficeDocumentConverter;
import com.sun.star.beans.PropertyValue;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.frame.XController;
import com.sun.star.frame.XDesktop;
import com.sun.star.frame.XModel;
import com.sun.star.frame.XStorable;
import com.sun.star.lang.XComponent;
import com.sun.star.text.XPageCursor;
import com.sun.star.text.XText;
import com.sun.star.text.XTextCursor;
import com.sun.star.text.XTextViewCursor;
import com.sun.star.text.XTextViewCursorSupplier;
import com.sun.star.uno.UnoRuntime;
/**
* Default file-based {@link DocumentConverter} implementation.
* <p>
* This implementation passes document data to and from the OpenOffice.org
* service as file URLs.
* <p>
* File-based conversions are faster than stream-based ones (provided by
* {@link StreamOpenOfficeDocumentConverter}) but they require the
* OpenOffice.org service to be running locally and have the correct
* permissions to the files.
*
* @see StreamOpenOfficeDocumentConverter
*/
public class WoogieDocumentConverter extends AbstractDokeosDocumentConverter {
public WoogieDocumentConverter(OpenOfficeConnection connection, int width, int height) {
super(connection, width, height);
}
public WoogieDocumentConverter(OpenOfficeConnection connection, DocumentFormatRegistry formatRegistry, int width, int height) {
super(connection, formatRegistry, width, height);
}
protected void loadAndExport(String inputUrl, Map/*<String,Object>*/ loadProperties, String outputUrl, Map/*<String,Object>*/ storeProperties) throws Exception {
XComponentLoader desktop = openOfficeConnection.getDesktop();
XComponent document = desktop.loadComponentFromURL(inputUrl, "_blank", 0, null);
if (document == null) {
throw new OpenOfficeException("conversion failed: input document is null after loading");
}
refreshDocument(document);
try {
// filter
PropertyValue[] loadProps = new PropertyValue[4];
// type of image
loadProps[0] = new PropertyValue();
loadProps[0].Name = "MediaType";
loadProps[0].Value = "image/png";
// Height and width
PropertyValue[] filterDatas = new PropertyValue[4];
for(int i = 0; i<4 ; i++){
filterDatas[i] = new PropertyValue();
}
filterDatas[0].Name = "PixelWidth";
filterDatas[0].Value = new Integer(this.width);
filterDatas[1].Name = "PixelHeight";
filterDatas[1].Value = new Integer(this.height);
filterDatas[2].Name = "LogicalWidth";
filterDatas[2].Value = new Integer(2000);
filterDatas[3].Name = "LogicalHeight";
filterDatas[3].Value = new Integer(2000);
filterDatas[3].Name = "CharacterSet";
filterDatas[3].Value = "iso-8859-15";
// query its XDesktop interface, we need the current component
XDesktop xDesktop = (XDesktop)UnoRuntime.queryInterface(
XDesktop.class, desktop);
XModel xModel = (XModel)UnoRuntime.queryInterface(XModel.class, document);
// the model knows its controller
XController xController = xModel.getCurrentController();
XTextViewCursorSupplier xViewCursorSupplier = (XTextViewCursorSupplier) UnoRuntime.queryInterface(XTextViewCursorSupplier.class, xController);
// get the cursor
XTextViewCursor xViewCursor = xViewCursorSupplier.getViewCursor();
XPageCursor xPageCursor = (XPageCursor)UnoRuntime.queryInterface(
XPageCursor.class, xViewCursor);
XText xDocumentText = xViewCursor.getText();
XTextCursor xModelCursor = xDocumentText.createTextCursorByRange(xViewCursor);
do{ // swith to the next page
// select the current page of document with the cursor
xPageCursor.jumpToEndOfPage();
xModelCursor.gotoRange(xViewCursor,false);
xModelCursor.setString("||page_break||");
} while(xPageCursor.jumpToNextPage());
} finally {
// store the document
XStorable storable = (XStorable) UnoRuntime.queryInterface(XStorable.class, document);
storeProperties.put("CharacterSet", "UTF-8");
storable.storeToURL(outputUrl, toPropertyValues(storeProperties));
document.dispose();
}
}
}