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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
*
* ---------------
* ModeChange.java
* ---------------
*/
package org.jpedal.examples.viewer.commands;
import java.awt.Component;
import java.awt.Dimension;
import javafx.application.Platform;
import javafx.stage.Stage;
import javax.swing.SwingUtilities;
import org.jpedal.PdfDecoderInt;
import org.jpedal.display.Display;
import org.jpedal.examples.viewer.Commands;
import org.jpedal.examples.viewer.SharedViewer;
import org.jpedal.examples.viewer.Values;
import org.jpedal.examples.viewer.gui.GUI;
import org.jpedal.gui.GUIFactory;
/**
*
* @author markee
*/
class ModeChange {
static void changeModeInSwing(final int mode, final PdfDecoderInt decode_pdf, final GUIFactory currentGUI, final Values commonValues) {
if (SwingUtilities.isEventDispatchThread()) {
currentGUI.setDisplayView(mode, Display.DISPLAY_CENTERED);
chooseMode(decode_pdf, commonValues, currentGUI);
currentGUI.getButtons().hideRedundentNavButtons(currentGUI);
if (decode_pdf.getDisplayView() == Display.PAGEFLOW) {
selectCurrentGui(currentGUI);
} else {
((GUI) currentGUI).setSelectedComboIndex(Commands.ROTATION, 0);
((Component) currentGUI.getFrame()).setMinimumSize(new Dimension(0, 0));
}
} else {
currentGUI.setCommandInThread(true);
final Runnable doPaintComponent = new Runnable() {
@Override
public void run() {
currentGUI.setDisplayView(mode, Display.DISPLAY_CENTERED);
chooseMode(decode_pdf, commonValues, currentGUI);
currentGUI.getButtons().hideRedundentNavButtons(currentGUI);
if(decode_pdf.getDisplayView()==Display.PAGEFLOW){
selectCurrentGui(currentGUI);
}else{
((GUI)currentGUI).setSelectedComboIndex(Commands.ROTATION, 0);
((Component)currentGUI.getFrame()).setMinimumSize(new Dimension(0, 0));
}
currentGUI.setExecutingCommand(false);
}
};
SwingUtilities.invokeLater(doPaintComponent);
}
}
static void changeModeInJavaFX(final int mode, final PdfDecoderInt decode_pdf, final GUIFactory currentGUI) {
if (Platform.isFxApplicationThread()) {
currentGUI.setDisplayView(mode, Display.DISPLAY_CENTERED);
currentGUI.getButtons().hideRedundentNavButtons(currentGUI);
((GUI)currentGUI).setSelectedComboIndex(Commands.ROTATION, 0);
Stage stage = (Stage) currentGUI.getFrame();
if (stage != null) {
((Stage) currentGUI.getFrame()).setMinWidth(0);
((Stage) currentGUI.getFrame()).setMinHeight(0);
}
} else {
currentGUI.setCommandInThread(true);
final Runnable doPaintComponent = new Runnable() {
@Override
public void run() {
currentGUI.setDisplayView(mode, Display.DISPLAY_CENTERED);
currentGUI.getButtons().hideRedundentNavButtons(currentGUI);
if(decode_pdf.getDisplayView()==Display.PAGEFLOW){
selectCurrentGui(currentGUI);
}else{
((GUI)currentGUI).setSelectedComboIndex(Commands.ROTATION, 0);
((Stage)currentGUI.getFrame()).setMinWidth(0);
((Stage)currentGUI.getFrame()).setMinHeight(0);
}
}
};
Platform.runLater(doPaintComponent);
}
}
static void chooseMode(final PdfDecoderInt decode_pdf, final Values commonValues, final GUIFactory currentGUI){
if(decode_pdf.getDisplayView()==Display.FACING){
int p = commonValues.getCurrentPage();
if (decode_pdf.getPages().getBoolean(Display.BoolValue.SEPARATE_COVER) && ((p & 1) == 1 && p != 1)) {
p--;
} else if (!decode_pdf.getPages().getBoolean(Display.BoolValue.SEPARATE_COVER) && ((p & 1) == 0)) {
p--;
}
commonValues.setCurrentPage(p);
currentGUI.setPage(p);
currentGUI.decodePage();//ensure all pages appear
} else if (decode_pdf.getDisplayView()==Display.CONTINUOUS_FACING){
int p = commonValues.getCurrentPage();
if ((p & 1) == 1 && p != 1) {
p--;
}
commonValues.setCurrentPage(p);
currentGUI.setPage(p);
}
}
static void selectCurrentGui(final GUIFactory currentGUI){
currentGUI.decodePage();//ensure all pages appear
if (((GUI) currentGUI).getSelectedComboIndex(Commands.SCALING) != 0) {
((GUI) currentGUI).setSelectedComboIndex(Commands.SCALING, 0);
((GUI) currentGUI).getSelectedComboItem(Commands.SCALING);
}
if (((GUI) currentGUI).getSelectedComboIndex(Commands.SCALING) == 0) {
int w = currentGUI.getPdfDecoder().getPdfPageData().getCropBoxWidth(currentGUI.getValues().getCurrentPage()) / 2;
int h = currentGUI.getPdfDecoder().getPdfPageData().getCropBoxHeight(currentGUI.getValues().getCurrentPage()) / 2;
//Don't allow screen to set minimum to be too large
if (w > 800) {
w = 800;
}
if (h > 600) {
h = 600;
}
if (SharedViewer.isFX()) {
((Stage) currentGUI.getFrame()).setMinWidth(w);
((Stage) currentGUI.getFrame()).setMinHeight(h);
} else {
((Component) currentGUI.getFrame()).setMinimumSize(new Dimension(w, (h)));
}
}
}
}