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457 lines
16 KiB
Java
457 lines
16 KiB
Java
/*
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* Copyright (C) 2014 Apocalypse Laboratories.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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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.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 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.filechooser.FileFilter;
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import javax.swing.filechooser.FileNameExtensionFilter;
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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 BufferedImage gpnl;
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private Graphics gg; // Main graphics object
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private boolean standalone = true;
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private boolean customName = false;
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private double xtimes = 15;
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private double ytimes = 15;
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private double scale = 1;
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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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gpnl = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
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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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filter = new FileNameExtensionFilter("JPEG image (.jpg)", "jpg");
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fc.addChoosableFileFilter(filter);
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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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jButton1 = new javax.swing.JButton();
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gLbl = new javax.swing.JLabel();
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jMenuBar1 = new javax.swing.JMenuBar();
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jMenu1 = new javax.swing.JMenu();
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jMenuItem2 = new javax.swing.JMenuItem();
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jMenu2 = new javax.swing.JMenu();
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jMenuItem1 = new javax.swing.JMenuItem();
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jMenuItem6 = new javax.swing.JMenuItem();
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jMenuItem3 = new javax.swing.JMenuItem();
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scaleLbl = new javax.swing.JMenu();
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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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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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addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
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public void mouseDragged(java.awt.event.MouseEvent evt) {
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formMouseDragged(evt);
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}
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public void mouseMoved(java.awt.event.MouseEvent evt) {
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formMouseMoved(evt);
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}
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});
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addComponentListener(new java.awt.event.ComponentAdapter() {
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public void componentMoved(java.awt.event.ComponentEvent evt) {
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formComponentMoved(evt);
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}
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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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jButton1.setText(">>");
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jButton1.setToolTipText("");
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jButton1.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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jButton1ActionPerformed(evt);
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}
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});
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gLbl.setBackground(new java.awt.Color(255, 255, 255));
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gLbl.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
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gLbl.setMaximumSize(new java.awt.Dimension(300, 300));
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gLbl.setMinimumSize(new java.awt.Dimension(300, 300));
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gLbl.setOpaque(true);
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gLbl.setPreferredSize(new java.awt.Dimension(300, 300));
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jMenu1.setText("File");
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jMenuItem2.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
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jMenuItem2.setText("Export graph...");
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jMenuItem2.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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jMenuItem2ActionPerformed(evt);
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}
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});
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jMenu1.add(jMenuItem2);
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jMenuBar1.add(jMenu1);
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jMenu2.setText("Edit");
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jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_W, java.awt.event.InputEvent.CTRL_MASK));
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jMenuItem1.setText("Clear Graph");
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jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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jMenuItem1ActionPerformed(evt);
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}
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});
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jMenu2.add(jMenuItem1);
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jMenuItem6.setText("Scale...");
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jMenuItem6.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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jMenuItem6ActionPerformed(evt);
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}
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});
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jMenu2.add(jMenuItem6);
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jMenuItem3.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_T, java.awt.event.InputEvent.CTRL_MASK));
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jMenuItem3.setText("Set Title...");
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jMenuItem3.addActionListener(new java.awt.event.ActionListener() {
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public void actionPerformed(java.awt.event.ActionEvent evt) {
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jMenuItem3ActionPerformed(evt);
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}
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});
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jMenu2.add(jMenuItem3);
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jMenuBar1.add(jMenu2);
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scaleLbl.setForeground(java.awt.Color.blue);
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scaleLbl.setText("Scale: 1 to 1");
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scaleLbl.setEnabled(false);
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jMenuBar1.add(scaleLbl);
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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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.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
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.addGroup(layout.createSequentialGroup()
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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.PREFERRED_SIZE, 215, javax.swing.GroupLayout.PREFERRED_SIZE)
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.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
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.addComponent(jButton1))
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.addComponent(gLbl, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
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.addContainerGap(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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.addContainerGap()
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.addComponent(gLbl, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
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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(jButton1))
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.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
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);
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pack();
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}// </editor-fold>//GEN-END:initComponents
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private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
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CodeRunner cr = new CodeRunner();
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String formula = inBox.getText().replaceAll("x", "\\$x");
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EvalUtilities solver = new EvalUtilities();
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double xx, yy, xo, yo, x;
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xo = 0;
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yo = 0;
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gg = gpnl.getGraphics();
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drawAxes();
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gg.setColor(Color.BLUE);
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for (x = (-10 * scale); x <= (10 * scale); x += (10 * scale * .01)) {
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try {
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cr.setVar("x", x);
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yy = (-(Double.parseDouble(solver.evaluate("$x=" + x + ";N[" + formula + "]").toString())) * ytimes) + (gpnl.getHeight() / 2);
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//System.err.println(solver.evaluate("$x="+x+";N["+formula+"]").toString());
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xx = (x * xtimes) + (gpnl.getWidth() / 2);
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//gg.drawOval(xx-1, yy-1, 2, 2);
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if (x != (-10 * scale)) {
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gg.drawLine((int) xo, (int) yo, (int) xx, (int) yy);
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}
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xo = xx;
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yo = yy;
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} catch (MathException | NumberFormatException ex) {
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}
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}
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gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
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dispGraph();
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if (!customName) {
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setTitle("Graph | " + inBox.getText());
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}
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}//GEN-LAST:event_jButton1ActionPerformed
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private void formComponentShown(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_formComponentShown
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gg = gpnl.getGraphics();
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drawAxes();
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gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
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dispGraph();
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}//GEN-LAST:event_formComponentShown
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/**
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* Set the zoom level. The larger the int, the more zoomed it is.
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*
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* @param zoomLevel Level to zoom. 0 is default (10x10).
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*/
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public void setZoom(int zoomLevel) {
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switch (zoomLevel) {
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case -1:
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xtimes = 7.5;
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ytimes = 7.5;
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scale = 2;
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case 1:
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xtimes = 30;
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ytimes = 30;
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scale = .5;
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break;
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case 2:
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xtimes = 60;
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ytimes = 60;
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scale = .25;
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break;
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case 3:
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xtimes = 120;
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ytimes = 120;
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scale = .125;
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break;
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default:
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xtimes = 15;
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ytimes = 15;
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scale = 1;
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}
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scaleLbl.setText("Scale: 1 to " + scale);
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clearDraw();
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}
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private void dispGraph() {
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gLbl.setIcon(new ImageIcon(gpnl));
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}
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public void drawDot(double x, double y) {
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gg.setColor(Color.RED);
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gg.drawOval((int) (x * xtimes - 2), (int) (y * -ytimes - 2), 4, 4);
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dispGraph();
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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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jButton1ActionPerformed(null);
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}
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}//GEN-LAST:event_inBoxKeyTyped
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private void formComponentMoved(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_formComponentMoved
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}//GEN-LAST:event_formComponentMoved
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private void formMouseMoved(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_formMouseMoved
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// TODO add your handling code here:
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}//GEN-LAST:event_formMouseMoved
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private void formMouseDragged(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_formMouseDragged
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}//GEN-LAST:event_formMouseDragged
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private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem1ActionPerformed
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gpnl = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
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gg = gpnl.getGraphics();
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drawAxes();
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gg.translate(gpnl.getWidth() / 2, gpnl.getHeight() / 2);
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dispGraph();
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setTitle("Graph");
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}//GEN-LAST:event_jMenuItem1ActionPerformed
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private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem2ActionPerformed
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int r = fc.showSaveDialog(this);
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if (r == JFileChooser.APPROVE_OPTION) {
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try {
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File file = new File(addSaveExt(fc.getSelectedFile().toString()));
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if (file.toString().endsWith("png")) {
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ImageIO.write(gpnl, "png", file);
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} else if (file.toString().endsWith("jpg")) {
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ImageIO.write(gpnl, "jpg", file);
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}
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} catch (IOException ex) {
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JOptionPane.showInternalMessageDialog(this, "Error: Cannot save file: " + ex.getMessage());
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}
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}
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}//GEN-LAST:event_jMenuItem2ActionPerformed
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private void jMenuItem3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem3ActionPerformed
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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_jMenuItem3ActionPerformed
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private void jMenuItem6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jMenuItem6ActionPerformed
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try {
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int size = Integer.parseInt(JOptionPane.showInternalInputDialog(this,
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"Graph scale, -1 to 3 (-1 least detail, 3 most detail):",
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"Scale",
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JOptionPane.QUESTION_MESSAGE));
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setZoom(size);
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} catch (Exception ex) {
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}
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}//GEN-LAST:event_jMenuItem6ActionPerformed
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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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jButton1ActionPerformed(null);
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}
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private String addSaveExt(String path) {
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if (!path.matches(".*\\.(png|jpg)")) {
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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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jMenuItem1ActionPerformed(null);
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}
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private void drawAxes() {
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gg.setColor(Color.GRAY);
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gg.drawLine(150, 0, 150, 300);
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gg.drawLine(0, 150, 300, 150);
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// Draw points
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for (int i = 0; i <= 315; i += 15) {
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gg.drawOval(150 - 1, i - 1, 2, 2);
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gg.drawOval(i - 1, 150 - 1, 2, 2);
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}
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gg.setColor(Color.BLUE);
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}
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// Variables declaration - do not modify//GEN-BEGIN:variables
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private javax.swing.JLabel gLbl;
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private javax.swing.JTextField inBox;
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private javax.swing.JButton jButton1;
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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 javax.swing.JMenuItem jMenuItem1;
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private javax.swing.JMenuItem jMenuItem2;
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private javax.swing.JMenuItem jMenuItem3;
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private javax.swing.JMenuItem jMenuItem6;
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private javax.swing.JMenu scaleLbl;
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// End of variables declaration//GEN-END:variables
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}
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