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

239 lines
7.8 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.Arrays;
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.awt.Point;
import com.sun.star.beans.PropertyValue;
import com.sun.star.container.XNamed;
import com.sun.star.document.XExporter;
import com.sun.star.document.XFilter;
import com.sun.star.drawing.XDrawPage;
import com.sun.star.drawing.XDrawPages;
import com.sun.star.drawing.XDrawPagesSupplier;
import com.sun.star.drawing.XShape;
import com.sun.star.drawing.XShapes;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.lang.XComponent;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.text.XText;
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 OogieDocumentConverter extends AbstractDokeosDocumentConverter {
public OogieDocumentConverter(OpenOfficeConnection connection, int width, int height) {
super(connection, width, height);
}
public OogieDocumentConverter(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, toPropertyValues(loadProperties));
if (document == null) {
throw new OpenOfficeException("conversion failed: input document is null after loading");
}
refreshDocument(document);
try {
outputUrl = FilenameUtils.getFullPath(outputUrl)+FilenameUtils.getBaseName(outputUrl);
// 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);
XDrawPagesSupplier pagesSupplier = (XDrawPagesSupplier) UnoRuntime
.queryInterface(XDrawPagesSupplier.class, document);
//System.out.println(pagesSupplier.toString());
XDrawPages pages = pagesSupplier.getDrawPages();
int nbPages = pages.getCount();
String[] slidenames = new String[nbPages];
Arrays.fill(slidenames,"");
for (int i = 0; i < nbPages; i++) {
XDrawPage page = (XDrawPage) UnoRuntime.queryInterface(
com.sun.star.drawing.XDrawPage.class, pages
.getByIndex(i));
// get all the page shapes
XShapes xShapes = (XShapes)UnoRuntime.queryInterface(XShapes.class, page);
int top = 0;
String slidename = "";
String slidebody = "";
String shapetext = "";
for (int j = 0; j < xShapes.getCount(); j++) {
XShape firstXshape = (XShape)UnoRuntime.queryInterface(XShape.class, xShapes.getByIndex(j));
Point pos = firstXshape.getPosition();
XText xText = (XText)UnoRuntime.queryInterface( XText.class, firstXshape );
if(xText!=null && xText.getString().length()>0)
{
shapetext = xText.getString();
// concatening all shape texts to later use
slidebody += " " + shapetext;
// get the top shape
if(pos.Y < top || top==0)
{
top = pos.Y;
slidename = shapetext;
}
}
}
// remove unwanted chars
slidebody = slidebody.replaceAll("\n", " ");
String slidenameDisplayed = "";
if(slidename.trim().length()==0)
{
slidename = "slide"+(i+1);
}
else
{
int nbSpaces = 0;
String formatedSlidename = "";
slidename = slidename.replaceAll(" ", "_");
slidename = slidename.replaceAll("\n", "_");
slidename = slidename.replaceAll("__", "_");
for(int j=0 ; j<slidename.length() ; j++)
{
char currentChar = slidename.charAt(j);
if(currentChar=='_')
{
nbSpaces++;
}
if(nbSpaces == 5)
{
break;
}
formatedSlidename += slidename.charAt(j);
}
slidenameDisplayed = formatedSlidename;
slidename = formatedSlidename.toLowerCase();
slidename = slidename.replaceAll("\\W", "_");
slidename = slidename.replaceAll("__", "_");
slidename = StringOperation.sansAccent(slidename);
}
int j=1;
String slidenamebackup = slidename;
Arrays.sort(slidenames);
while(Arrays.binarySearch(slidenames, slidename)>=0)
{
j++;
slidename = slidenamebackup+j;
}
slidenames[nbPages-(i+1)] = slidename;
XNamed xPageName = (XNamed)UnoRuntime.queryInterface(XNamed.class,page);
xPageName.setName(slidename);
XMultiComponentFactory localServiceManager = ((DokeosSocketOfficeConnection)this.openOfficeConnection).getServiceManager();
Object GraphicExportFilter = localServiceManager
.createInstanceWithContext(
"com.sun.star.drawing.GraphicExportFilter",
((DokeosSocketOfficeConnection)this.openOfficeConnection).getComponentContext());
XExporter xExporter = (XExporter) UnoRuntime
.queryInterface(XExporter.class,
GraphicExportFilter);
XComponent xComp = (XComponent) UnoRuntime
.queryInterface(XComponent.class, page);
xExporter.setSourceDocument(xComp);
loadProps[1] = new PropertyValue();
loadProps[1].Name = "URL";
loadProps[1].Value = outputUrl+"/"+xPageName.getName()+".png";
loadProps[2] = new PropertyValue();
loadProps[2].Name = "FilterData";
loadProps[2].Value = filterDatas;
loadProps[3] = new PropertyValue();
loadProps[3].Name = "Quality";
loadProps[3].Value = new Integer(100);
XFilter xFilter = (XFilter) UnoRuntime.queryInterface(XFilter.class, GraphicExportFilter);
xFilter.filter(loadProps);
if(slidenameDisplayed=="")
slidenameDisplayed = xPageName.getName();
System.out.println(slidenameDisplayed+"||"+xPageName.getName()+".png"+"||"+slidebody);
}
} finally {
document.dispose();
}
}
}