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Open Source (LGPL) 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 1997-2017 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
@LICENSE@
*
* ---------------
* SwingCursor.java
* ---------------
*/
package org.jpedal.examples.viewer.gui;
import java.awt.Cursor;
import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import static org.jpedal.examples.viewer.gui.GUI.*;
import org.jpedal.utils.LogWriter;
/**
* This class controls everything to do with Swing Cursor objects
*/
public class SwingCursor {
private String iconLocation = "/org/jpedal/examples/viewer/res/";
/**
* grabbing cursor
*/
private Cursor grabCursor;
private Cursor grabbingCursor;
private Cursor panCursor;
private Cursor panCursorL;
private Cursor panCursorTL;
private Cursor panCursorT;
private Cursor panCursorTR;
private Cursor panCursorR;
private Cursor panCursorBR;
private Cursor panCursorB;
private Cursor panCursorBL;
/**
* Get a stored Cursor
*
* @param type in value specifying the cursor type
* @return Cursor object for the specified type
*/
public Cursor getCursor(final int type) {
switch (type) {
case GRAB_CURSOR:
if (grabCursor == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "grab32.png"));
grabCursor = kit.createCustomCursor(img, new Point(8, 8), "grab");
}
return grabCursor;
case GRABBING_CURSOR:
if (grabbingCursor == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "grabbing32.png"));
grabbingCursor = kit.createCustomCursor(img, new Point(8, 8), "grabbing");
}
return grabbingCursor;
case PAN_CURSOR:
if (panCursor == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "pan32.png"));
panCursor = kit.createCustomCursor(img, new Point(10, 10), "pan");
}
return panCursor;
case PAN_CURSORL:
if (panCursorL == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "panl32.png"));
panCursorL = kit.createCustomCursor(img, new Point(11, 10), "panl");
}
return panCursorL;
case PAN_CURSORTL:
if (panCursorTL == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "pantl32.png"));
panCursorTL = kit.createCustomCursor(img, new Point(10, 10), "pantl");
}
return panCursorTL;
case PAN_CURSORT:
if (panCursorT == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "pant32.png"));
panCursorT = kit.createCustomCursor(img, new Point(10, 11), "pant");
}
return panCursorT;
case PAN_CURSORTR:
if (panCursorTR == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "pantr32.png"));
panCursorTR = kit.createCustomCursor(img, new Point(10, 10), "pantr");
}
return panCursorTR;
case PAN_CURSORR:
if (panCursorR == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "panr32.png"));
panCursorR = kit.createCustomCursor(img, new Point(10, 10), "panr");
}
return panCursorR;
case PAN_CURSORBR:
if (panCursorBR == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "panbr32.png"));
panCursorBR = kit.createCustomCursor(img, new Point(10, 10), "panbr");
}
return panCursorBR;
case PAN_CURSORB:
if (panCursorB == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "panb32.png"));
panCursorB = kit.createCustomCursor(img, new Point(10, 10), "panb");
}
return panCursorB;
case PAN_CURSORBL:
if (panCursorBL == null) {
final Toolkit kit = Toolkit.getDefaultToolkit();
final Image img = kit.getImage(getURLForImage(iconLocation + "panbl32.png"));
panCursorBL = kit.createCustomCursor(img, new Point(10, 10), "panbl");
}
return panCursorBL;
default:
return Cursor.getDefaultCursor();
}
}
/**
* Specify the location to be used for cursor images
*
* @param location String value presenting the directory that holds the cursor images
*/
public void setIconLocation(final String location) {
iconLocation = location;
}
/**
* Retrieve the URL of the actual image to use f
*
* @param path Preferred name and location
* @return URL of file to use
*/
public URL getURLForImage(String path) {
path = iconLocation + path;
final String file = path.substring(path.lastIndexOf('/') + 1);
URL url;
//Check if file location provided
path = path.substring(0, path.indexOf('.')) + ".gif";
File p = new File(path);
url = getClass().getResource(path);
//It's a file location check for gif
if (p.exists()) {
try {
url = p.toURI().toURL();
} catch (final MalformedURLException e) {
LogWriter.writeLog("Exception attempting get path for image " + e);
}
}
if (url == null) {
path = path.substring(0, path.indexOf('.')) + ".png";
p = new File(path);
url = getClass().getResource(path);
//It's a file location check for png
if (p.exists()) {
try {
url = p.toURI().toURL();
} catch (final MalformedURLException e) {
LogWriter.writeLog("Exception attempting get path for image " + e);
}
}
}
if (url != null) {
return url;
} else { //use default graphic
path = "/org/jpedal/examples/viewer/res/" + file;
url = getClass().getResource(path);
return url;
}
}
/**
* Get the cursor image as a buffered image for use in FX code
*
* @param type int value representing the cursor type
* @return BufferedImage of the image to use for the cursor
*/
public BufferedImage getCursorImageForFX(final int type) {
switch (type) {
case GRAB_CURSOR:
try {
return ImageIO.read(getURLForImage("grab32.png"));
} catch (final Exception e) {
LogWriter.writeLog("Exception in getting image " + e);
return null;
}
case GRABBING_CURSOR:
try {
return ImageIO.read(getURLForImage("grabbing32.png"));
} catch (final Exception e) {
LogWriter.writeLog("Exception in getting image " + e);
return null;
}
default:
return null;
}
}
}
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