Add code
This commit is contained in:
z8
+544
@@ -0,0 +1,544 @@
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import javax.swing.*;
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import javax.swing.event.ChangeEvent;
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import java.awt.*;
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import java.awt.event.*;
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import java.awt.image.BufferedImage;
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import java.lang.reflect.Field;
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import java.text.DecimalFormat;
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public class JuliaSet {
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public JFrame frame;
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public JPanel panel;
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public JPanel controlPanel1;
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public JPanel controlPanel2;
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public JPanel imagePanel;
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public JPanel borderPanel1;
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public JPanel borderPanel2;
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public JPanel borderPanel3;
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JTextField textFieldCY;
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JTextField textFieldIterations;
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JLabel labelZoom;
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JLabel labelColorMethod;
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JLabel imageLabel;
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JLabel hueSliderLabel;
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JLabel brightnessSliderLabel;
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JLabel blackThresholdLabel;
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JSlider sliderZoom;
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JSlider sliderColorHue;
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JSlider sliderColorBrightness;
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JSlider sliderBlackThreshold;
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BufferedImage juliaSetImage;
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int sliderFactor;
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int imageRectX;
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int imageRectY;
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int colorHueSliderFactor;
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double colorBrightnessSliderFactor;
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double blackThresholdSliderFactor;
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public int juliaIterations;
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public double juliaCX;
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public double juliaCY;
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public double juliaXAxisMin;
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public double juliaXAxisMax;
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public double juliaYAxisMin;
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public double juliaYAxisMax;
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public double distanceMinMaxX;
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public double distanceMinMaxY;
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public double offsetX;
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public double offsetY;
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public double zoom;
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public double stretchFactorX;
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public double stretchFactorY;
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public double mouseOffsetX;
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public double mouseOffsetY;
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// Rounding to two decimal points
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// Used for the slider
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static final DecimalFormat df = new DecimalFormat("0.00");
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// For the color picker
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public int selectedColorMethod;
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static ButtonGroup colorMethods;
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static JRadioButton colorMethod1;
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static JRadioButton colorMethod2;
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// for the resize event
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private javax.swing.Timer waitingTimer;
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JuliaSet() {
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initWindow();
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initGuiElements();
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showGUI();
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drawJuliaSet();
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}
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public void drawJuliaSet() {
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// Start timer
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long startTime = System.currentTimeMillis();
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// Because the JPanel with the image on it doesn't want to reveal its own size...
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int trueHeight = this.frame.getContentPane().getComponent(0).getHeight() - (this.controlPanel1.getHeight() + this.controlPanel2.getHeight() + 3 * 10);
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this.imageRectX = this.imagePanel.getBounds().width;
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this.imageRectY = trueHeight;
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// If the user switches the variables around
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double temp;
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if (juliaXAxisMin > juliaXAxisMax) {
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temp = juliaXAxisMax;
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juliaXAxisMax = juliaXAxisMin;
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juliaXAxisMin = temp;
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}
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if (juliaYAxisMin > juliaYAxisMax) {
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temp = juliaYAxisMax;
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juliaYAxisMax = juliaYAxisMin;
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juliaYAxisMin = temp;
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}
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// All the calculations are done beforehand
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// to save time. No need to calculate them
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// every single time...
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// zoom = slider value ^ 3
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zoom = Math.pow((double) sliderFactor / 10.0, 3);
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distanceMinMaxX = Math.abs(juliaXAxisMax - juliaXAxisMin);
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distanceMinMaxY = Math.abs(juliaYAxisMax - juliaYAxisMin);
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offsetX = (juliaXAxisMin + (Math.abs(distanceMinMaxX) / 2));
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offsetY = (juliaYAxisMin + (Math.abs(distanceMinMaxY) / 2));
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stretchFactorX = distanceMinMaxX / 2;
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stretchFactorY = distanceMinMaxY / 2;
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// Create image to draw on
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juliaSetImage = new BufferedImage(this.imageRectX, this.imageRectY, BufferedImage.TYPE_INT_RGB);
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int systemThreads = Runtime.getRuntime().availableProcessors();
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JuliaDrawThread[] jA = new JuliaDrawThread[systemThreads];
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for (int t = 0; t < systemThreads; t++) {
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// Make sure that the reference is empty
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jA[t] = null;
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jA[t] = new JuliaDrawThread(t, systemThreads, this);
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}
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// Create array of threads
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Thread[] tA = new Thread[systemThreads];
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// here's where we
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for (int t = 0; t < systemThreads; t++) {
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tA[t] = new Thread(jA[t]);
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tA[t].start();
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}
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BufferedImage[] partialImages = new BufferedImage[systemThreads];
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for (int t = 0; t < systemThreads; t++) {
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try {
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tA[t].join();
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partialImages[t] = jA[t].getPartialImage();
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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// At this point we've collected all the image data
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// Merge into one image
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int currentHeight = 0;
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Graphics2D g2d = juliaSetImage.createGraphics();
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for (BufferedImage pImage: partialImages) {
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g2d.drawImage(pImage, 0, currentHeight, null);
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currentHeight += pImage.getHeight();
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}
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g2d.dispose();
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// Draw the image here
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imageLabel.setIcon(new ImageIcon(juliaSetImage));
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// End timer
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long endTime = System.currentTimeMillis();
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System.out.printf("Time: %dms%n", endTime - startTime);
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}
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public void zoomSliderStateChanged(ChangeEvent e) {
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JSlider source = (JSlider) e.getSource();
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sliderFactor = source.getValue();
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// Rounding the number before writing it to the label
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labelZoom.setText(df.format((Math.pow((double) sliderFactor / 10, 3))));
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drawJuliaSet();
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}
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public void colorHueSliderStateChanged(ChangeEvent e) {
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JSlider source = (JSlider) e.getSource();
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colorHueSliderFactor = source.getValue();
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drawJuliaSet();
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}
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public void brightnessSliderStateChanged(ChangeEvent e) {
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JSlider source = (JSlider) e.getSource();
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colorBrightnessSliderFactor = (float) source.getValue();
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drawJuliaSet();
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}
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public void blackThresholdSliderStateChanged(ChangeEvent e) {
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JSlider source = (JSlider) e.getSource();
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blackThresholdSliderFactor = (float) source.getValue() / 250;
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drawJuliaSet();
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}
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// Universal text field changer
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// That way I don't have to re-write the float and integer parsing for every single text field
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// Using reflection we just look for a variable with a matching name
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// Help for key listener: https://kodejava.org/how-do-i-add-key-listener-event-handler-to-jtextfield/
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public void textFieldChanged(JTextField jt, String variableToBeChanged) {
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try {
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// Get variable of object by name
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Field f = this.getClass().getDeclaredField(variableToBeChanged);
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if (f.getType().toString().equals("double")) {
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try {
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f.setDouble(this, Double.parseDouble(jt.getText()));
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// Value changed successfully, redraw Julia set
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drawJuliaSet();
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} catch (NumberFormatException ex) {
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jt.setText(Double.toString(f.getDouble(this)));
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JOptionPane.showConfirmDialog(null, "Please only enter floating point numbers", "Floats only", JOptionPane.DEFAULT_OPTION);
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} catch (IllegalAccessException e) {
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// Just like the other exceptions these should never occur
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// because the user doesn't have control over them
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// Prints stack trace to the terminal, but the user can't see that *taps head*
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e.printStackTrace();
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}
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}
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if (f.getType().toString().equals("int")) {
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try {
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f.setInt(this, Integer.parseInt(jt.getText()));
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drawJuliaSet();
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} catch (NumberFormatException ex) {
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jt.setText(Integer.toString(f.getInt(this)));
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JOptionPane.showConfirmDialog(null, "Please only enter integers", "Integers only", JOptionPane.DEFAULT_OPTION);
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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}
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}
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// These are never supposed to be hit
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// The user doesn't have control over any of this
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// They're just here so IntelliJ doesn't complain
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catch (NoSuchFieldException | IllegalAccessException e) {
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e.printStackTrace();
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}
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}
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class ColorRadioButtonActionListener implements ActionListener {
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@Override
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public void actionPerformed(ActionEvent event) {
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JRadioButton button = (JRadioButton) event.getSource();
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if (button == colorMethod1) {
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selectedColorMethod = 1;
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hueSliderLabel.setVisible(false);
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brightnessSliderLabel.setVisible(false);
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sliderColorBrightness.setVisible(false);
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sliderColorHue.setVisible(false);
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blackThresholdLabel.setVisible(false);
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sliderBlackThreshold.setVisible(false);
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} else if (button == colorMethod2) {
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selectedColorMethod = 2;
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hueSliderLabel.setVisible(true);
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brightnessSliderLabel.setVisible(true);
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sliderColorBrightness.setVisible(true);
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sliderColorHue.setVisible(true);
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blackThresholdLabel.setVisible(true);
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sliderBlackThreshold.setVisible(true);
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}
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drawJuliaSet();
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}
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}
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public void initGuiElements() {
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this.panel = new JPanel();
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panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
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// Create panels to serve as borders
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borderPanel1 = new JPanel();
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borderPanel2 = new JPanel();
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borderPanel3 = new JPanel();
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borderPanel1.setMinimumSize(new Dimension(10, 10));
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borderPanel1.setPreferredSize(new Dimension(10, 10));
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borderPanel2.setMinimumSize(new Dimension(10, 10));
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borderPanel2.setPreferredSize(new Dimension(10, 10));
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borderPanel3.setMinimumSize(new Dimension(10, 10));
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borderPanel3.setPreferredSize(new Dimension(10, 10));
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borderPanel1.setLayout(new BoxLayout(borderPanel1, BoxLayout.X_AXIS));
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borderPanel2.setLayout(new BoxLayout(borderPanel2, BoxLayout.X_AXIS));
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borderPanel3.setLayout(new BoxLayout(borderPanel3, BoxLayout.X_AXIS));
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// Create JPanels for the controls at the top
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this.controlPanel1 = new JPanel();
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this.controlPanel2 = new JPanel();
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this.controlPanel1.setLayout(new BoxLayout(this.controlPanel1, BoxLayout.X_AXIS));
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this.controlPanel2.setLayout(new BoxLayout(this.controlPanel2, BoxLayout.X_AXIS));
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// Add space in-between control elements
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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JLabel labelParameterC = new JLabel("Parameter C:");
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this.controlPanel1.add(labelParameterC);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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JLabel labelCX = new JLabel("X");
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this.controlPanel1.add(labelCX);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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JTextField textFieldCX = new JTextField("0.0");
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textFieldCX.setMaximumSize(new Dimension(50, 30));
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juliaCX = 0.0 f;
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textFieldCX.addKeyListener(new KeyAdapter() {
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public void keyReleased(KeyEvent e) {
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textFieldChanged(textFieldCX, "juliaCX");
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}
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});
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textFieldCX.setPreferredSize(new Dimension(40, 30));
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textFieldCX.setMaximumSize(new Dimension(90, 30));
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this.controlPanel1.add(textFieldCX);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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JLabel labelCY = new JLabel("Y");
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this.controlPanel1.add(labelCY);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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textFieldCY = new JTextField("0.0");
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textFieldCY.setPreferredSize(new Dimension(40, 30));
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textFieldCY.setMaximumSize(new Dimension(90, 30));
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juliaCY = 0.0 f;
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textFieldCY.addKeyListener(new KeyAdapter() {
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public void keyReleased(KeyEvent e) {
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textFieldChanged(textFieldCY, "juliaCY");
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}
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});
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this.controlPanel1.add(textFieldCY);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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JLabel labelIterations = new JLabel("Iterations");
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this.controlPanel1.add(labelIterations);
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textFieldIterations = new JTextField("300");
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textFieldIterations.setPreferredSize(new Dimension(40, 30));
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textFieldIterations.setMaximumSize(new Dimension(90, 30));
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juliaIterations = 300;
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textFieldIterations.addKeyListener(new KeyAdapter() {
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public void keyReleased(KeyEvent e) {
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textFieldChanged(textFieldIterations, "juliaIterations");
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}
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});
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this.controlPanel1.add(textFieldIterations);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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// Initial values to constrain the first drawn julia set
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juliaXAxisMin = -2.0 f;
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juliaXAxisMax = 2.0 f;
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juliaYAxisMax = 2.0 f;
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juliaYAxisMin = -2.0 f;
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// Zoom label
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labelZoom = new JLabel("Zoom");
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this.controlPanel1.add(labelZoom);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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// Zoom slider
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// unfortunately it only takes integers, so we'll have to divide by ten
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// to get the number we actually want
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sliderZoom = new JSlider(1, 1000, 10);
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// + 2 because the slider feels slightly off-center otherwise
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sliderZoom.addChangeListener(this::zoomSliderStateChanged);
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this.controlPanel1.add(sliderZoom);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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// Text field right next to the slider
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// shows the zoom factor, is not writable
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labelZoom = new JLabel("1,0");
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sliderFactor = 10;
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this.controlPanel1.add(labelZoom);
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this.controlPanel1.add(Box.createRigidArea(new Dimension(7, 0)));
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labelZoom.setMinimumSize(new Dimension(50, 30));
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labelZoom.setPreferredSize(new Dimension(50, 30));
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labelColorMethod = new JLabel("View:");
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this.controlPanel2.add(Box.createRigidArea(new Dimension(7, 0)));
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this.controlPanel2.add(labelColorMethod);
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// Create buttons
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colorMethod1 = new JRadioButton();
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this.controlPanel2.add(colorMethod1);
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// Set this one to the default
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// We do this before we add the item listener
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// No need to draw the set twice just because
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// we clicked a button
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colorMethod1.doClick();
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selectedColorMethod = 1;
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colorMethod2 = new JRadioButton();
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this.controlPanel2.add(colorMethod2);
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// Create group for the radio buttons
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colorMethods = new ButtonGroup();
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colorMethods.add(colorMethod1);
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colorMethods.add(colorMethod2);
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// Add listener for the buttons
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ColorRadioButtonActionListener colorActionListener = new ColorRadioButtonActionListener();
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colorMethod1.addActionListener(colorActionListener);
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colorMethod2.addActionListener(colorActionListener);
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// "H" for the slider
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hueSliderLabel = new JLabel("H ");
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this.controlPanel2.add(hueSliderLabel);
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hueSliderLabel.setVisible(false);
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// Hue slider
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sliderColorHue = new JSlider(0, 100, 0);
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// + 2 because the slider feels slightly off-center otherwise
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sliderColorHue.addChangeListener(this::colorHueSliderStateChanged);
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sliderColorHue.setVisible(false);
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this.controlPanel2.add(sliderColorHue);
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brightnessSliderLabel = new JLabel("B ");
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this.controlPanel2.add(brightnessSliderLabel);
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brightnessSliderLabel.setVisible(false);
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// Brightness slider
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sliderColorBrightness = new JSlider(1, 100, 1);
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// + 2 because the slider feels slightly off-center otherwise
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sliderColorBrightness.addChangeListener(this::brightnessSliderStateChanged);
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sliderColorBrightness.setVisible(false);
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this.controlPanel2.add(sliderColorBrightness);
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colorBrightnessSliderFactor = 1;
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// Black threshold label
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blackThresholdLabel = new JLabel("Threshold ");
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blackThresholdLabel.setVisible(false);
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this.controlPanel2.add(blackThresholdLabel);
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// Black threshold label
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sliderBlackThreshold = new JSlider(0, 100, 0);
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sliderBlackThreshold.addChangeListener(this::blackThresholdSliderStateChanged);
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sliderBlackThreshold.setVisible(false);
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this.controlPanel2.add(sliderBlackThreshold);
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// Draw image onto label
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// Every time setIcon() is called the image updates
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imagePanel = new JPanel();
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imageLabel = new JLabel();
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this.imagePanel.add(imageLabel);
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System.gc();
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}
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public void initWindow() {
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frame = new JFrame();
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frame.setTitle("Julia Set");
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// Windows UI
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try {
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UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
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} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
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ex.printStackTrace();
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}
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||||
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||||
frame.setMinimumSize(new Dimension(800, 800));
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frame.setLocationRelativeTo(null);
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// Actually make sure that the window gets closed when we press the X button
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent we) {
|
||||
we.getWindow().dispose(); // Throw away the window
|
||||
System.exit(0); // Exit JVM
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
public void actionPerformed(ActionEvent ae) {
|
||||
if (ae.getSource() == this.waitingTimer) {
|
||||
//Stop timer, event has ended
|
||||
this.waitingTimer.stop();
|
||||
this.waitingTimer = null;
|
||||
|
||||
this.imagePanel.setPreferredSize(new Dimension(this.imagePanel.getBounds().width, this.imagePanel.getBounds().height));
|
||||
drawJuliaSet();
|
||||
}
|
||||
}
|
||||
|
||||
public void showGUI() {
|
||||
this.panel.add(borderPanel1);
|
||||
this.panel.add(controlPanel1);
|
||||
this.panel.add(borderPanel2);
|
||||
this.panel.add(controlPanel2);
|
||||
this.panel.add(borderPanel3);
|
||||
this.panel.add(imagePanel);
|
||||
this.frame.add(this.panel);
|
||||
this.frame.setVisible(true);
|
||||
|
||||
// Implement timer to wait until the resize event is over
|
||||
this.frame.addComponentListener(new ComponentAdapter() {
|
||||
public void componentResized(ComponentEvent componentEvent) {
|
||||
if (waitingTimer == null) {
|
||||
waitingTimer = new Timer(50, JuliaSet.this::actionPerformed);
|
||||
waitingTimer.start();
|
||||
} else {
|
||||
waitingTimer.restart();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
MouseAdapter ma = new MouseAdapter() {
|
||||
private Point startPoint;
|
||||
|
||||
@Override
|
||||
public void mousePressed(MouseEvent e) {
|
||||
startPoint = e.getPoint();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void mouseReleased(MouseEvent e) {
|
||||
Point p = e.getPoint();
|
||||
mouseOffsetX += (p.x - startPoint.x) / zoom;
|
||||
mouseOffsetY += (p.y - startPoint.y) / zoom;
|
||||
startPoint = null;
|
||||
drawJuliaSet();
|
||||
}
|
||||
|
||||
@Override
|
||||
public void mouseWheelMoved(MouseWheelEvent e) {
|
||||
sliderZoom.setValue(sliderZoom.getValue() - e.getWheelRotation());
|
||||
}
|
||||
};
|
||||
|
||||
frame.addMouseListener(ma);
|
||||
frame.addMouseMotionListener(ma);
|
||||
frame.addMouseWheelListener(ma);
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
new JuliaSet();
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user