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/*
* ===========================================
* 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
*
* ---------------
* JavaFXMouseListener.java
* ---------------
*/
package org.jpedal.examples.viewer.gui.javafx;
import java.io.File;
import javafx.application.Platform;
import javafx.event.EventHandler;
import javafx.geometry.Bounds;
import javafx.scene.Cursor;
import javafx.scene.input.*;
import org.jpedal.PdfDecoderFX;
import org.jpedal.display.Display;
import org.jpedal.examples.viewer.Commands;
import org.jpedal.examples.viewer.MouseMode;
import org.jpedal.examples.viewer.Values;
import org.jpedal.examples.viewer.gui.GUI;
import org.jpedal.examples.viewer.gui.MouseSelector;
import org.jpedal.examples.viewer.gui.generic.GUIMouseHandler;
import org.jpedal.exception.PdfException;
import org.jpedal.gui.GUIFactory;
import org.jpedal.io.PdfObjectReader;
import org.jpedal.render.DynamicVectorRenderer;
import org.jpedal.render.FXDisplay;
/**
* Class to handle JavaFX Mouse Events that take place on the Pane
* which holds the PDF content (PdfDecoderFX).
*/
public class JavaFXMouseListener extends MouseSelector implements GUIMouseHandler {
private final PdfDecoderFX decode_pdf;
private final GUIFactory currentGUI;
private final Values commonValues;
private final Commands currentCommands;
final JavaFXMouseSelector selectionFunctions;
final JavaFXMousePanMode panningFunctions;
final JavaFXMousePageTurn pageTurnFunctions;
//Track dragging as FX uses click after drag when it should not
private boolean dragging;
//Custom mouse function
private static JavaFXMouseFunctionality customMouseFunctions;
//private boolean scrollPageChanging;
//current cursor position
private double cx, cy;
//tells user if we enter a link
private static final String message = "";
//tracks mouse operation mode currently selected
private MouseMode mouseMode = new MouseMode();
public JavaFXMouseListener(final PdfDecoderFX decode_pdf, final GUIFactory currentGUI,
final Values commonValues, final Commands currentCommands) {
this.decode_pdf = decode_pdf;
this.currentGUI = currentGUI;
this.commonValues = commonValues;
this.currentCommands = currentCommands;
this.mouseMode = currentCommands.getMouseMode();
selectionFunctions = new JavaFXMouseSelector(decode_pdf, currentGUI, commonValues, currentCommands);
panningFunctions = new JavaFXMousePanMode(decode_pdf);
pageTurnFunctions = new JavaFXMousePageTurn(decode_pdf, currentGUI, commonValues, currentCommands);
}
@Override
public void setupMouse() {
/*
* track and display screen co-ordinates and support links
*/
//Motion Listener Code.
decode_pdf.setOnMouseDragged(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
dragging = true;
mouseDragged(e);
}
});
decode_pdf.setOnMouseMoved(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
mouseMoved(e);
}
});
//Mouse Listener Code.
decode_pdf.setOnMouseClicked(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
//FX calls clicked even if dragged. This should not happen.
if(dragging){
dragging = false;
}else{
mouseClicked(e);
}
}
});
decode_pdf.setOnMouseEntered(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
mouseEntered(e);
}
});
decode_pdf.setOnMouseExited(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
mouseExited(e);
}
});
decode_pdf.setOnMousePressed(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
//Ensure reset on each press
dragging = false;
mousePressed(e);
}
});
decode_pdf.setOnMouseReleased(new EventHandler() {
@Override
public void handle(final MouseEvent e) {
mouseReleased(e);
}
});
/*
* Controls for dragging a PDF into the scene
* Using the dragboard, which extends the clipboard class,
* detect a file being dragged onto the scene and if the user drops the file
* we load it.
*/
decode_pdf.setOnDragOver(new EventHandler() {
@Override
public void handle(final DragEvent event) {
mouseDragOver(event);
}
});
decode_pdf.setOnDragDropped(new EventHandler() {
@Override
public void handle(final DragEvent event) {
mouseDragDropped(event);
}
});
//Mouse Wheel Listener Code.
if (GUI.debugFX) {
System.out.println("addMouseWheelListener in JavaFXMouseListener.java not yet implemented for JavaFX");
}
//decode_pdf.addMouseWheelListener(this);
//set cursor
decode_pdf.setDefaultCursor(Cursor.DEFAULT);
}
private void mouseReleased(final MouseEvent e) {
//stop middle click panning
if (e.getButton().equals(MouseButton.MIDDLE)) {
panningFunctions.mouseReleased(e);
} else {
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
selectionFunctions.mouseReleased(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
panningFunctions.mouseReleased(e);
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseReleased(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseReleased(e);
}
}
}
public static void setCustomMouseFunctions(final JavaFXMouseFunctionality cmf) {
customMouseFunctions = cmf;
}
private void mouseDragDropped(final DragEvent e) {
final Dragboard db = e.getDragboard();
boolean success = false;
if (db.hasFiles()) {
success = true;
// Only get the first file from the list
final File file = db.getFiles().get(0);
Platform.runLater(new Runnable() {
@Override
public void run() {
try {
currentCommands.handleTransferedFile(file.getAbsolutePath());
} catch (final PdfException ex) {
ex.printStackTrace();
}
}
});
}
e.setDropCompleted(success);
e.consume();
}
private static void mouseDragOver(final DragEvent e) {
final Dragboard db = e.getDragboard();
//Only accept pdf files
final boolean isAccepted = db.getFiles().get(0).getName().toLowerCase().endsWith(".pdf");
if (db.hasFiles()) {
if (isAccepted) {
e.acceptTransferModes(TransferMode.COPY);
}
} else {
e.consume();
}
}
private void mouseClicked(final MouseEvent e) {
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
if (decode_pdf.isOpen()){
selectionFunctions.mouseClicked(e);
}
break;
case MouseMode.MOUSE_MODE_PANNING:
//Does Nothing so ignore
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseClicked(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseClicked(e);
}
}
private void mouseEntered(final MouseEvent e) {
currentGUI.enableMemoryBar(true, false);
currentGUI.enableCursor(true, true);
currentGUI.setMultibox(new int[]{GUI.CURSOR,1});
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
//Text selection does nothing here
//selectionFunctions.mouseEntered(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
//Does Nothing so ignore
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseEntered(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseEntered(e);
}
}
private void mousePressed(final MouseEvent e) {
//Start dragging
if (e.getButton().equals(MouseButton.MIDDLE)) {
panningFunctions.mousePressed(e);
} else {
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
selectionFunctions.mousePressed(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
panningFunctions.mousePressed(e);
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mousePressed(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mousePressed(e);
}
}
}
private void mouseMoved(final MouseEvent e) {
//int page = commonValues.getCurrentPage();
//Point p = selectionFunctions.getCoordsOnPage(e.getX(), e.getY(), page);
final int x = (int) e.getX();
final int y = (int) e.getY();
updateCoords(x, y);
/*
* Mouse mode specific code
*/
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
//final int[] values = updateXY((int) e.getX(), (int) e.getY(), decode_pdf, commonValues);
//x = values[0];
//y = values[1];
if (!currentCommands.extractingAsImage && decode_pdf.isOpen()) {
final int pagenumber = decode_pdf.getPageNumber();
final int crx = decode_pdf.getPdfPageData().getCropBoxX(pagenumber);
final int cry = decode_pdf.getPdfPageData().getCropBoxY(pagenumber);
getObjectUnderneath((int)cx+crx, (int)cy+cry);
}
selectionFunctions.mouseMoved(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
//Does Nothing so ignore
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseMoved(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseMoved(e);
}
}
private void mouseDragged(final MouseEvent e) {
if (e.getButton().equals(MouseButton.MIDDLE)) {
panningFunctions.mouseDragged(e);
} else {
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
selectionFunctions.mouseDragged(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
panningFunctions.mouseDragged(e);
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseDragged(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseDragged(e);
}
}
}
private void mouseExited(final MouseEvent e) {
currentGUI.enableCursor(true, false);
currentGUI.enableMemoryBar(true, true);
currentGUI.setMultibox(new int[]{GUI.CURSOR,0});
switch (mouseMode.getMouseMode()) {
case MouseMode.MOUSE_MODE_TEXT_SELECT:
selectionFunctions.mouseExited(e);
break;
case MouseMode.MOUSE_MODE_PANNING:
//Does Nothing so ignore
break;
}
if (decode_pdf.getPages().getBoolean(Display.BoolValue.TURNOVER_ON) && decode_pdf.getDisplayView() == Display.FACING) {
pageTurnFunctions.mouseExited(e);
}
if (customMouseFunctions != null) {
customMouseFunctions.mouseExited(e);
}
}
public double[] getCursorLocation() {
return new double[]{cx, cy};
}
public void checkLinks(final boolean mouseClicked, final PdfObjectReader pdfObjectReader) {
//int[] pos = updateXY(event.getX(), event.getY());
pageTurnFunctions.checkLinks(mouseClicked, pdfObjectReader, cx, cy);
}
public void updateCordsFromFormComponent(final MouseEvent e) {
// Region component = (Region) e.getSource();
//double x = component.getBoundsInLocal().getMinX() + e.getX();
//double y = component.getBoundsInLocal().getMinX() + e.getY();
//Point p = selectionFunctions.getCoordsOnPage(x, y, commonValues.getCurrentPage());
final double x = (int) e.getX();
final double y = (int) e.getY();
updateCoords(x, y);
}
/**
* update current page co-ordinates on screen
*/
public void updateCoords(final double x, final double y) {
cx = x;
cy = y;
if (decode_pdf.getDisplayView() != Display.SINGLE_PAGE) {
if (JavaFXMouseSelector.activateMultipageHighlight && (decode_pdf.getDisplayView() == Display.FACING || decode_pdf.getDisplayView() == Display.CONTINUOUS || decode_pdf.getDisplayView() == Display.CONTINUOUS_FACING)) {
if ((decode_pdf.getDisplayView() == Display.FACING) &&
(decode_pdf.getPageNumber() < decode_pdf.getPageCount())) {
//Width of page on left so we can show the correct coords on right page
final int xOffset = decode_pdf.getPdfPageData().getCropBoxWidth(decode_pdf.getPageNumber());
if (cx >= xOffset) {
cx -= xOffset;
}
}
} else {
cx = 0;
cy = 0;
}
}
// We adjust the PDF to (0,0) of decode_pdf, so add on the cropbox x/y account for this
final int pagenumber = decode_pdf.getPageNumber();
final int crx = decode_pdf.getPdfPageData().getCropBoxX(pagenumber);
final int cry = decode_pdf.getPdfPageData().getCropBoxY(pagenumber);
final Bounds pdfBounds = decode_pdf.getBoundsInLocal();
if ((Values.isProcessing()) || (commonValues.getSelectedFile() == null)) {
currentGUI.setCoordText(" X: " + " Y: " + ' ' + ' '); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
} else if (cx >= 0 && cy >= 0 && cx <= pdfBounds.getMaxX() - currentGUI.getDropShadowDepth() && cy <= pdfBounds.getMaxY() - currentGUI.getDropShadowDepth()) {
//Make sure we only display coords when we're inside the decode_pdf Pane display area.
currentGUI.setCoordText(" X: " + (cx+crx) + " Y: " + (cy+cry) + ' ' + ' ' + message); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
}
/**
* scroll to visible Rectangle and update Coords box on screen
*/
protected void scrollAndUpdateCoords(final MouseEvent e) {
//scroll if user hits side
// int interval = decode_pdf.getScrollInterval();
// Rectangle visible_test = new Rectangle(adjustForAlignment((int) e.getX(), decode_pdf), e.getY(), interval, interval);
if (GUI.debugFX) {
//System.out.println("getVisibleRect and scrollRectToVisible is not implemented yet in JavaFXMouseListener.java");
/*
* if((currentGUI.allowScrolling())&&(!decode_pdf.getVisibleRect().contains(visible_test))){
* ((PdfDecoder)decode_pdf).scrollRectToVisible(visible_test); }
*/
}
//int page = commonValues.getCurrentPage();
//Point p = selectionFunctions.getCoordsOnPage(e.getX(), e.getY(), page);
final int x = (int) e.getX();
final int y = (int) e.getY();
updateCoords(x, y);
}
/**
* This method is not currently used as we change cursor via the CSS.
* @param x
* @param y
*/
private void getObjectUnderneath(final int x, final int y) {
if (decode_pdf.getDisplayView() == Display.SINGLE_PAGE) {
final int type = ((FXDisplay)decode_pdf.getDynamicRenderer()).getObjectUnderneath(x, y);
switch (type) {
case -1:
decode_pdf.setCursor(Cursor.DEFAULT);
break;
case DynamicVectorRenderer.TEXT:
decode_pdf.setCursor(Cursor.TEXT);
break;
case DynamicVectorRenderer.IMAGE:
decode_pdf.setCursor(Cursor.CROSSHAIR);
break;
case DynamicVectorRenderer.TRUETYPE:
decode_pdf.setCursor(Cursor.TEXT);
break;
case DynamicVectorRenderer.TYPE1C:
decode_pdf.setCursor(Cursor.TEXT);
break;
case DynamicVectorRenderer.TYPE3:
decode_pdf.setCursor(Cursor.TEXT);
break;
}
}
}
@Override
public void dispose() {
//Do nothing as of yet.
}
}
