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466 lines
15 KiB
Java
466 lines
15 KiB
Java
/*
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* Apocalypse Laboratories
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* Open Source License
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*
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* Source code can be used for any purpose, as long as:
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* - Compiled binaries are rebranded and trademarks are not
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* visible by the end user at any time, except to give
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* credit to Apocalypse Laboratories, such as by showing
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* "Based on <product> by Apocalypse Laboratories" or a
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* similar notice;
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* - You do not use the code for evil;
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* - Rebranded compiled applications have significant
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* differences in functionality;
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* - and you provide your modified source code for download,
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* under the terms of the GNU LGPL v3 or a comparable
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* license.
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*
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* Compiled binaries cannot be redistributed or mirrored,
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* unless:
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* - You have written permission from Apocalypse Laboratories;
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* - Downloads are not available from Apocalypse Laboratories,
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* not even behind a paywall or other blocking mechanism;
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* - or you have received a multi-computer license, in which
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* case you should take measures to prevent unauthorized
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* downloads, such as preventing download access from the
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* Internet.
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*/
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package net.apocalypselabs.symat;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Graphics;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import static java.lang.Math.abs;
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import javax.imageio.ImageIO;
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import javax.swing.ImageIcon;
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import javax.swing.JFileChooser;
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import javax.swing.JOptionPane;
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import javax.swing.SwingUtilities;
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import javax.swing.filechooser.FileFilter;
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import javax.swing.filechooser.FileNameExtensionFilter;
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import org.math.plot.Plot2DPanel;
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import org.matheclipse.core.eval.EvalUtilities;
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import org.matheclipse.parser.client.math.MathException;
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/**
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*
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* @author Skylar
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*/
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public class Graph extends javax.swing.JInternalFrame {
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private final JFileChooser fc = new JFileChooser();
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private boolean standalone = true;
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private boolean customName = false;
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// History, used for redrawing when scale changed.
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private String history = "";
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// If a graph is being drawn, set to true, else false
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boolean graphing = false;
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// Graph min and max
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private double xmin = -10;
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private double xmax = 10;
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/**
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* Creates new form Graph
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*/
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public Graph() {
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init();
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}
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public Graph(boolean isInternal) {
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init();
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standalone = !isInternal;
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}
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private void init() {
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initComponents();
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FileFilter filter = new FileNameExtensionFilter("PNG image (.png)", "png");
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fc.setFileFilter(filter);
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fc.addChoosableFileFilter(filter);
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plot.plotToolBar.remove(5);
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plot.plotToolBar.remove(4);
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plot.plotToolBar.remove(3);
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}
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@Override
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public void doDefaultCloseAction() {
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if (standalone) {
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dispose();
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} else {
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hide();
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}
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}
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public void forceClose() {
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dispose();
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}
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/**
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* This method is called from within the constructor to initialize the form.
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* WARNING: Do NOT modify this code. The content of this method is always
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* regenerated by the Form Editor.
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*/
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@SuppressWarnings("unchecked")
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// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
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private void initComponents() {
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inBox = new javax.swing.JTextField();
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jLabel1 = new javax.swing.JLabel();
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plotBtn = new javax.swing.JButton();
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plot = new org.math.plot.Plot2DPanel();
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jMenuBar1 = new javax.swing.JMenuBar();
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jMenu1 = new javax.swing.JMenu();
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exportBtn = new javax.swing.JMenuItem();
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jMenu2 = new javax.swing.JMenu();
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clrGraphBtn = new javax.swing.JMenuItem();
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setTitleBtn = new javax.swing.JMenuItem();
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setClosable(true);
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setDefaultCloseOperation(javax.swing.WindowConstants.HIDE_ON_CLOSE);
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setIconifiable(true);
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setMaximizable(true);
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setResizable(true);
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setTitle("Graph");
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setToolTipText("");
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setFrameIcon(new javax.swing.ImageIcon(getClass().getResource("/net/apocalypselabs/symat/icons/graph.png"))); // NOI18N
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setPreferredSize(new java.awt.Dimension(326, 402));
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addComponentListener(new java.awt.event.ComponentAdapter() {
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public void componentShown(java.awt.event.ComponentEvent evt) {
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formComponentShown(evt);
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}
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});
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inBox.addKeyListener(new java.awt.event.KeyAdapter() {
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public void keyTyped(java.awt.event.KeyEvent evt) {
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inBoxKeyTyped(evt);
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}
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});
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jLabel1.setText("f(x)=");
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plotBtn.setText(">>");
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plotBtn.setToolTipText("");
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plotBtn.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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plotBtnActionPerformed(evt);
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}
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});
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jMenu1.setText("File");
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exportBtn.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
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exportBtn.setText("Export graph...");
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exportBtn.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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exportBtnActionPerformed(evt);
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}
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});
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jMenu1.add(exportBtn);
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jMenuBar1.add(jMenu1);
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jMenu2.setText("Edit");
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clrGraphBtn.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_W, java.awt.event.InputEvent.CTRL_MASK));
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clrGraphBtn.setText("Clear Graph");
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clrGraphBtn.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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clrGraphBtnActionPerformed(evt);
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}
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});
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jMenu2.add(clrGraphBtn);
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setTitleBtn.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_T, java.awt.event.InputEvent.CTRL_MASK));
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setTitleBtn.setText("Set Title...");
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setTitleBtn.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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setTitleBtnActionPerformed(evt);
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}
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});
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jMenu2.add(setTitleBtn);
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jMenuBar1.add(jMenu2);
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setJMenuBar(jMenuBar1);
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javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
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getContentPane().setLayout(layout);
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layout.setHorizontalGroup(
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layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
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.addGroup(layout.createSequentialGroup()
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.addContainerGap()
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.addComponent(jLabel1)
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.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
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.addComponent(inBox, javax.swing.GroupLayout.DEFAULT_SIZE, 215, Short.MAX_VALUE)
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.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
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.addComponent(plotBtn)
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.addGap(10, 10, 10))
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.addComponent(plot, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
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);
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layout.setVerticalGroup(
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layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
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.addGroup(layout.createSequentialGroup()
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.addComponent(plot, javax.swing.GroupLayout.DEFAULT_SIZE, 311, Short.MAX_VALUE)
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.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
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.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
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.addComponent(inBox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
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.addComponent(jLabel1)
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.addComponent(plotBtn))
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.addContainerGap())
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);
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pack();
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}// </editor-fold>//GEN-END:initComponents
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private void plotBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_plotBtnActionPerformed
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new GraphThread(inBox.getText()).start();
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}//GEN-LAST:event_plotBtnActionPerformed
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/**
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* Graph the graphs without holding up everything else.
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*/
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private class GraphThread extends Thread {
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String[] frmlas;
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public GraphThread(String frmla) {
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frmlas = new String[1];
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frmlas[0] = frmla;
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}
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public GraphThread(String[] frmla) {
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frmlas = frmla;
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}
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@Override
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public void run() {
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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inBox.setEnabled(false);
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plotBtn.setEnabled(false);
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for (Component mu : jMenuBar1.getComponents()) {
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mu.setEnabled(false);
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}
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}
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});
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for (String formula : frmlas) {
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String niceformula = formula;
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CodeRunner cr = new CodeRunner();
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formula = formula.replaceAll("x", "\\$x");
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EvalUtilities solver = new EvalUtilities();
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String xx = "";
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String yy = "";
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double x;
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for (x = xmin; x <= xmax; x += ((xmax - xmin) / 40.0)) {
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try {
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cr.setVar("x", x);
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yy += solver.evaluate("$x=" + x + ";N[" + formula + "]").toString() + " ";
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xx += String.valueOf(x) + " ";
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} catch (MathException | NumberFormatException ex) {
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}
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}
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Debug.println(xx);
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Debug.println(yy);
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String[] xs = xx.trim().split(" ");
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String[] ys = yy.trim().split(" ");
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double[] xd = new double[xs.length];
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double[] yd = new double[ys.length];
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for (int i = 0; i < xs.length; i++) {
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xd[i] = Double.parseDouble(xs[i]);
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}
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for (int i = 0; i < ys.length; i++) {
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yd[i] = Double.parseDouble(ys[i]);
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}
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SwingUtilities.invokeLater(new Updater(niceformula, xd, yd));
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}
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SwingUtilities.invokeLater(new Finisher());
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}
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private class Updater implements Runnable {
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final double[] xd;
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final double[] yd;
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final String formula;
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public Updater(String frmla, double[] x, double[] y) {
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xd = x;
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yd = y;
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formula = frmla;
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}
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@Override
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public void run() {
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plot.addLinePlot(formula, xd, yd);
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history += formula + "\n";
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}
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}
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private class Finisher implements Runnable {
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@Override
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public void run() {
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inBox.setEnabled(true);
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plotBtn.setEnabled(true);
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for (Component mu : jMenuBar1.getComponents()) {
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mu.setEnabled(true);
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}
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}
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}
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}
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private void formComponentShown(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_formComponentShown
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}//GEN-LAST:event_formComponentShown
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/**
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* Get the zoom ratio.
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*
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* @param zoomLevel The zoom level to calculate from.
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* @return The ratio.
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*/
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public static double getScale(int zoomLevel) {
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double gscale = 15.0;
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if (zoomLevel >= 0) {
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gscale = 1.0 / (zoomLevel + 1.0);
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} else {
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gscale = 1.0 * (abs(zoomLevel) + 1.0);
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}
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return gscale;
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}
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public void drawDot(double x, double y) {
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// TODO: implement this
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}
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private void inBoxKeyTyped(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_inBoxKeyTyped
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if (evt.getKeyChar() == '\n') {
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plotBtnActionPerformed(null);
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}
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}//GEN-LAST:event_inBoxKeyTyped
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private void clrGraphBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_clrGraphBtnActionPerformed
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clearDraw();
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}//GEN-LAST:event_clrGraphBtnActionPerformed
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private void exportBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_exportBtnActionPerformed
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}//GEN-LAST:event_exportBtnActionPerformed
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private void setTitleBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_setTitleBtnActionPerformed
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String wintitle = JOptionPane.showInternalInputDialog(this,
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"New window title:",
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"Rename",
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JOptionPane.QUESTION_MESSAGE);
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if (wintitle != null && !wintitle.equals("")) {
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setWindowTitle(wintitle);
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}
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}//GEN-LAST:event_setTitleBtnActionPerformed
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/**
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* Get the range of the graph.
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*
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* @return {xmin, xmax}
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*/
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public double[] getRange() {
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double[] range = {xmin, xmax};
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return range;
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}
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public void setRange(double min, double max) {
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xmin = min;
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xmax = max;
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clearDraw(false);
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if (!history.trim().equals("")) {
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String temp = "";
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for (String cmd : history.trim().split("\n")) {
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cmd = cmd.trim();
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if (!cmd.equals("")) {
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temp += cmd + "\n";
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}
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}
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history = temp.trim();
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new GraphThread(history.split("\n")).start();
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inBox.setText("");
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}
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}
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/**
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* Graph the given function. Same as typing into input box and pressing
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* Enter.
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*
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* @param f f(x) = f
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*/
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public void graphFunction(String f) {
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inBox.setText(f);
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plotBtnActionPerformed(null);
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}
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private String addSaveExt(String path) {
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if (!path.matches(".*\\.(png)")) {
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path += ".png";
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}
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return path;
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}
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/**
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* Set the wintitle of this graph window.
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*
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* @param t The wintitle.
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*/
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public void setWindowTitle(String t) {
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setTitle(t);
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customName = true;
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}
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/**
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* Get the wintitle of the window.
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*
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* @return the wintitle, stupid!
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*/
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public String getWindowTitle() {
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return getTitle();
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}
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/**
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* Erase the graph.
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*/
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public void clearDraw() {
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clearDraw(true);
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}
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/**
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* Erase the graph.
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*
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* @param alsoHistory True if history should be removed
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*/
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public void clearDraw(boolean alsoHistory) {
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if (alsoHistory) {
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history = "";
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}
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plot.removeAllPlots();
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}
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// Variables declaration - do not modify//GEN-BEGIN:variables
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private javax.swing.JMenuItem clrGraphBtn;
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private javax.swing.JMenuItem exportBtn;
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private javax.swing.JTextField inBox;
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private javax.swing.JLabel jLabel1;
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private javax.swing.JMenu jMenu1;
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private javax.swing.JMenu jMenu2;
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private javax.swing.JMenuBar jMenuBar1;
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private org.math.plot.Plot2DPanel plot;
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private javax.swing.JButton plotBtn;
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private javax.swing.JMenuItem setTitleBtn;
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// End of variables declaration//GEN-END:variables
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}
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