The Big Programming Thread - Page 819

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class ClickWindow {

	public static void main(String[] args) {

		EventQueue.invokeLater(() -> new ClickWindow());

	}

	private final JFrame frame = new JFrame();
	public JButton bf = new JButton("Brute Force");
	public JButton alg = new JButton("My Algorithm");

	public ClickWindow() {

		bf.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				bForce();

			}
		});

		alg.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				myAlg();

			}
		});

		// make sure the JVM ends when the frame is closed
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		// use some arbitrary size for testing
		frame.setSize(1280, 800);
		// center the frame on screen
		frame.setLocationRelativeTo(null);

		// set our custom JPanel to be the content-pane (the root element) of
		// our frame
		frame.setContentPane(new ClickPanel());
		frame.add(bf);
		frame.add(alg);

		// show the frame
		frame.setVisible(true);
	}

	private void bForce() {

	}

	private void myAlg() {

	}

	
	
	
	
	public static class ClickPanel extends JPanel {

		// holds coords of one node
		public ArrayList<Integer> coords;
		// arraylist of nodes
		public static ArrayList<ArrayList<Integer>> nodes = new ArrayList<ArrayList<Integer>>();

		private int x, y;

		public ClickPanel() {
			// A MouseAdapter is just an abstract class of MouseListener
			// with empty implementations for all methods
			addMouseListener(new MouseAdapter() {
				public void mousePressed(MouseEvent e) {
					// we check for left-click
					if (SwingUtilities.isLeftMouseButton(e)) {
						// we take the X- and Y-coordinates from the event
						x = e.getX();
						y = e.getY();

						coords = new ArrayList<Integer>();
						coords.add(x);
						coords.add(y);
						nodes.add(coords);

						// we need to repaint our ClickPanel
						// when we want to draw a new dot
						repaint();
						ClickPanel j = new ClickPanel();
					}
				}
			});

		}

		public void paintComponent(Graphics g) {
			// renders the border and background
			super.paintComponent(g);
			// renders our colored point
			g.setColor(Color.RED);

			// go through all the nodes and paint all their circles
			for (ArrayList<Integer> c : nodes) {
				int j = c.get(0);
				int k = c.get(1);
				g.fillOval(j, k, 10, 10);
			}

			int lastj = -1;
			int lastk = -1;

			// go through all the nodes and connect them with a path in order of
			// insertion
			for (ArrayList<Integer> c : nodes) {
				// gets the "to" node
				int j = c.get(0);
				int k = c.get(1);

				if (lastj != -1) {
					g.drawLine(lastj, lastk, j, k);
				}

				// used to get the "from" node
				lastj = j;
				lastk = k;
			}

		}

	}

}

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class ClickWindow {
	
	public static void main(String[] args) {
		EventQueue.invokeLater(() -> new ClickWindow());
	}
	
	private final JFrame frame = new JFrame();
	
	public ClickWindow() {
		JButton bf = new JButton("Brute Force");
		bf.addActionListener(e -> bForce());
		
		JButton alg = new JButton("My Algorithm");
		alg.addActionListener(e -> myAlg());
		
		// make sure the JVM ends when the frame is closed
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		// use some arbitrary size for testing
		frame.setSize(1280, 800);
		// center the frame on screen
		frame.setLocationRelativeTo(null);
		
		// set our custom JPanel to be the content-pane (the root element) of
		// our frame
		frame.setContentPane(new ClickPanel());
		frame.add(bf);
		frame.add(alg);
		
		// show the frame
		frame.setVisible(true);
	}
	
	private void bForce() {
		
	}
	
	private void myAlg() {
		
	}
	
	public static class ClickPanel extends JPanel {
		// arraylist of nodes
		private final ArrayList<Point> nodes = new ArrayList<>();
		
		public ClickPanel() {
			// A MouseAdapter is just an abstract class of MouseListener
			// with empty implementations for all methods
			addMouseListener(new MouseAdapter() {
				@Override
				public void mousePressed(MouseEvent e) {
					// we check for left-click
					if (SwingUtilities.isLeftMouseButton(e)) {
						nodes.add(e.getPoint());
						// we need to repaint our ClickPanel
						// when we want to draw a new dot
						repaint();
					}
				}
			});
		}
		
		@Override
		public void paintComponent(Graphics g) {
			// renders the border and background
			super.paintComponent(g);
			// renders our colored point
			g.setColor(Color.RED);
			
			Point previousPoint = null;
			// go through all the nodes and paint all their circles
			// also draw lines between them
			for (Point currentPoint : nodes) {
				int currentX = currentPoint.x;
				int currentY = currentPoint.y;
				// draw line for every 2 points
				if (previousPoint != null) {
					g.drawLine(previousPoint.x, previousPoint.y, currentX, currentY);
				}
				// we want to draw the oval centered on the point
				int ovalSize = 10;
				int ovalX = currentX - ovalSize / 2;
				int ovalY = currentY - ovalSize / 2;
				g.fillOval(ovalX, ovalY, ovalSize, ovalSize);
				// The current point becomes the previous point of the next iteration
				previousPoint = currentPoint;
			}
		}
	}
}