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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2016 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
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.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* GUIExtractText.java
* ---------------
*/
package org.jpedal.examples.viewer.commands.generic;
import java.util.Iterator;
import java.util.Map;
import javax.swing.JOptionPane;
import org.jpedal.PdfDecoderInt;
import org.jpedal.examples.viewer.Values;
import org.jpedal.exception.PdfException;
import org.jpedal.grouping.PdfGroupingAlgorithms;
import org.jpedal.gui.GUIFactory;
import org.jpedal.objects.PdfPageData;
import org.jpedal.utils.Messages;
import org.jpedal.utils.Strip;
/**
* Class to Handle the popup dialogs created when user right clicks
* highlighted text and chooses text extraction.
*/
public class GUIExtractText {
protected static String extractTextList(final PdfDecoderInt decode_pdf, final Values commonValues, final GUIFactory currentGUI, final boolean isXML, final int t_x1, final int t_x2, final int t_y1, final int t_y2) throws PdfException {
//int page = commonValues.getCurrentHighlightedPage();
//if(page==-1)
// page = commonValues.getCurrentPage();
String extractedText = "";
//always reset to use unaltered co-ords
PdfGroupingAlgorithms.useUnrotatedCoords = true;
//page data so we can choose portrait or landscape
final PdfPageData pageData = decode_pdf.getPdfPageData();
final int rotation = pageData.getRotation(commonValues.getCurrentPage());
if (rotation != 0) {
final int alterCoords = currentGUI.showConfirmDialog(Messages.getMessage("PdfViewerRotatedCoords.message"),
Messages.getMessage("PdfViewerOutputFormat.message"),
JOptionPane.YES_NO_OPTION);
if (alterCoords == 0) {
PdfGroupingAlgorithms.useUnrotatedCoords = false;
}
}
/*
* get the text
*/
final java.util.List words = decode_pdf.getGroupingObject().extractTextAsWordlist(
t_x1,
t_y1,
t_x2,
t_y2,
commonValues.getCurrentPage(),
true, null);
if (words == null) {
currentGUI.showMessageDialog(Messages.getMessage("PdfViewerMessage.NoTextFound") + "\nx1:" + t_x1 + " y1:" + t_y1 + " x2:" + t_x2 + " y2:" + t_y2);
}
if (words != null) {
//put words into list
final StringBuilder textOutput = new StringBuilder();
final Iterator wordIterator = words.iterator();
while (wordIterator.hasNext()) {
String currentWord = (String) wordIterator.next();
if (!isXML) {
currentWord = Strip.convertToText(currentWord, decode_pdf.isXMLExtraction());
}
final int wx1 = (int) Float.parseFloat((String) wordIterator.next());
final int wy1 = (int) Float.parseFloat((String) wordIterator.next());
final int wx2 = (int) Float.parseFloat((String) wordIterator.next());
final int wy2 = (int) Float.parseFloat((String) wordIterator.next());
textOutput.append(currentWord).append(',').append(wx1).append(',').append(wy1).append(',').append(wx2).append(',').append(wy2).append('\n');
}
if (textOutput.toString() != null) {
extractedText = textOutput.toString();
}
}
return extractedText;
}
protected static String extractTextTable(final Values commonValues, final PdfDecoderInt decode_pdf, final boolean isCSV, final int t_x1, final int t_x2, final int t_y1, final int t_y2) throws PdfException {
final Map content;
/*
* find out if xml or text - as we need to turn xml off before
* extraction. So we assume xml and strip out. This is obviously
*/
if (!isCSV) {
content = decode_pdf.getGroupingObject().extractTextAsTable(t_x1,
t_y1, t_x2, t_y2, commonValues.getCurrentPage(), true, false,
false, false, 0);
} else {
content = decode_pdf.getGroupingObject().extractTextAsTable(t_x1,
t_y1, t_x2, t_y2, commonValues.getCurrentPage(), false, true,
true, false, 1);
}
if (content.get("content") != null) {
return (String) content.get("content");
} else {
return "";
}
}
protected static String extractTextRectangle(final Values commonValues, final PdfDecoderInt decode_pdf, final GUIFactory currentGUI, final boolean isXML, final int t_x1, final int t_x2, final int t_y1, final int t_y2) throws PdfException {
String extractedText = decode_pdf.getGroupingObject().extractTextInRectangle(
t_x1, t_y1, t_x2, t_y2, commonValues.getCurrentPage(), false,
true);
/*
* find out if xml or text - as we need to turn xml off before
* extraction. So we assume xml and strip out. This is obviously
*/
if (extractedText == null) {
currentGUI.showMessageDialog(Messages.getMessage("PdfViewerMessage.NoTextFound") + "\nx1:" + t_x1 + " y1:" + t_y1 + " x2:" + t_x2 + " y2:" + t_y2);
return "";
} else if (!isXML) {
extractedText = Strip.stripXML(extractedText, decode_pdf.isXMLExtraction()).toString();
}
return extractedText;
}
}