org.jpedal.examples.viewer.commands.PreviousResult Maven / Gradle / Ivy
/*
* ===========================================
* 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
*
* ---------------
* PreviousResult.java
* ---------------
*/
package org.jpedal.examples.viewer.commands;
import org.jpedal.PdfDecoderInt;
import static org.jpedal.examples.viewer.Commands.FIRST_DOCUMENT_SEARCH_RESULT_NOW_SHOWN;
import static org.jpedal.examples.viewer.Commands.SEARCH_NOT_FOUND;
import static org.jpedal.examples.viewer.Commands.SEARCH_RETURNED_TO_START;
import org.jpedal.examples.viewer.Values;
import org.jpedal.examples.viewer.gui.generic.GUISearchList;
import org.jpedal.examples.viewer.gui.generic.GUISearchWindow;
import org.jpedal.gui.GUIFactory;
import org.jpedal.utils.LogWriter;
import org.jpedal.utils.Messages;
import org.jpedal.utils.repositories.generic.Vector_Rectangle_Int;
/**
* Shows the previous search result in the Viewer.
* Jumps to final result if already at first result.
*/
public class PreviousResult {
public static Object execute(final Object[] args, final Values commonValues, final GUIFactory currentGUI, final PdfDecoderInt decode_pdf, final GUISearchWindow searchFrame) {
Object status = null;
GUISearchList results = null;
if (args == null) {
results = searchFrame.getResults(commonValues.getCurrentPage());
int index = results.getSelectedIndex();
if (index < 0) {
index = 0;
results.setSelectedIndex(index);
}
// Object currPage = results.getTextPages().get(new Integer(index));
final Integer currPage = commonValues.getCurrentPage();
if (index == 0
|| results.getResultCount() == 0) {
int currentPage = commonValues.getCurrentPage() - 1;
if (currentPage < 1) {
currentPage = commonValues.getPageCount();
}
results = searchFrame.getResults(currentPage);
while (results.getResultCount() < 1 && currentPage > 0
&& searchFrame.getViewStyle() == GUISearchWindow.SEARCH_MENU_BAR) {
results = searchFrame.getResults(currentPage);
currentPage--;
}
if (results.getResultCount() < 1
&& currentPage == 0) {
currentPage = commonValues.getPageCount();
results = searchFrame.getResults(currentPage);
status = SEARCH_RETURNED_TO_START;
while (results.getResultCount() < 1 && currentPage >= commonValues.getCurrentPage()
&& searchFrame.getViewStyle() == GUISearchWindow.SEARCH_MENU_BAR) {
results = searchFrame.getResults(currentPage);
currentPage--;
}
}
index = results.getResultCount() - 1;
if (results.getResultCount() < 1) {
status = SEARCH_NOT_FOUND;
}
} else {
index--;
}
currentGUI.setResults(results);
results.setSelectedIndex(index);
if (!Values.isProcessing()) {//{if (!event.getValueIsAdjusting()) {
final float scaling = currentGUI.getScaling();
//int inset=currentGUI.getPDFDisplayInset();
final int id = results.getSelectedIndex();
if (!commonValues.getAllHighlightsShown()) {
decode_pdf.getTextLines().clearHighlights();
}
if (id != -1) {
final Integer key = id;
final Integer newPage = results.getTextPages().get(key);
if (newPage != null) {
final int nextPage = newPage;
//move to new page
if (commonValues.getCurrentPage() != nextPage) {
commonValues.setCurrentPage(nextPage);
currentGUI.resetStatusMessage(Messages.getMessage("PdfViewer.LoadingPage") + ' ' + commonValues.getCurrentPage());
/*
* reset as rotation may change!
*/
decode_pdf.setPageParameters(scaling, commonValues.getCurrentPage());
//decode the page
currentGUI.decodePage();
}
while (Values.isProcessing()) {
//Ensure page has been processed else highlight may be incorrect
try {
Thread.sleep(5000);
} catch (Exception e) {
LogWriter.writeLog("Attempting to set propeties values " + e);
}
}
if ((currPage != nextPage) && (commonValues.getAllHighlightsShown())){
final Vector_Rectangle_Int storageVector = new Vector_Rectangle_Int();
Integer kInteger;
//Integer allKeys = new Integer(id);
for (int k = 0; k != results.getResultCount(); k++) {
kInteger = k;
//int currentPage = ((Integer)newPage).intValue();
if (results.getTextPages().get(kInteger) == nextPage) {
final Object h = searchFrame.getTextRectangles().get(kInteger);
if (h instanceof int[]) {
storageVector.addElement((int[]) h);
}
if (h instanceof int[][]) {
final int[][] areas = (int[][]) h;
for (int i = 0; i != areas.length; i++) {
storageVector.addElement(areas[i]);
}
}
}
}
storageVector.trim();
final int[][] finalHighlight;
finalHighlight = storageVector.get();
decode_pdf.getTextLines().addHighlights(finalHighlight, true, nextPage);
}
if (!commonValues.getAllHighlightsShown()) {
final Object highlight = results.textAreas().get(key);
if (highlight instanceof int[]) {
decode_pdf.getTextLines().addHighlights(new int[][]{(int[]) highlight}, true, nextPage);
} else {
decode_pdf.getTextLines().addHighlights((int[][]) highlight, true, nextPage);
}
}
decode_pdf.getPages().refreshDisplay();
decode_pdf.repaintPane(commonValues.getCurrentPage());
}
}
}
currentGUI.getButtons().hideRedundentNavButtons(currentGUI);
}
if (commonValues.getCurrentPage() == searchFrame.getFirstPageWithResults()
&& results.getSelectedIndex() == 0) {
status = FIRST_DOCUMENT_SEARCH_RESULT_NOW_SHOWN;
}
return status;
}
}