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- import java.awt.BasicStroke;
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.FontMetrics;
- import java.awt.Graphics;
- import java.awt.Graphics2D;
- import java.awt.Point;
- import java.awt.RenderingHints;
- import java.awt.Stroke;
- import java.util.ArrayList;
- import java.util.List;
- import java.util.Random;
- import javax.swing.JFrame;
- import javax.swing.JPanel;
- import javax.swing.SwingUtilities;
- /*
- * To change this template, choose Tools | Templates
- * and open the template in the editor.
- */
- /**
- *
- * @author Rodrigo
- */
- public class GraphPanel extends JPanel {
- private int width = 800;
- private int heigth = 400;
- private int padding = 25;
- private int labelPadding = 25;
- private Color lineColor = new Color(44, 102, 230, 180);
- private Color pointColor = new Color(100, 100, 100, 180);
- private Color gridColor = new Color(200, 200, 200, 200);
- private static final Stroke GRAPH_STROKE = new BasicStroke(2f);
- private int pointWidth = 4;
- private int numberYDivisions = 10;
- private List<Long> scores;
- public GraphPanel(List<Long> scores) {
- this.scores = scores;
- }
- @Override
- protected void paintComponent(Graphics g) {
- super.paintComponent(g);
- Graphics2D g2 = (Graphics2D) g;
- g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
- double xScale = ((double) getWidth() - (2 * padding) - labelPadding) / (scores.size() - 1);
- double yScale = ((double) getHeight() - 2 * padding - labelPadding) / (getMaxScore() - getMinScore());
- List<Point> graphPoints = new ArrayList<>();
- for (int i = 0; i < scores.size(); i++) {
- int x1 = (int) (i * xScale + padding + labelPadding);
- int y1 = (int) ((getMaxScore() - scores.get(i)) * yScale + padding);
- graphPoints.add(new Point(x1, y1));
- }
- // draw white background
- g2.setColor(Color.WHITE);
- g2.fillRect(padding + labelPadding, padding, getWidth() - (2 * padding) - labelPadding, getHeight() - 2 * padding - labelPadding);
- g2.setColor(Color.BLACK);
- // create hatch marks and grid lines for y axis.
- for (int i = 0; i < numberYDivisions + 1; i++) {
- int x0 = padding + labelPadding;
- int x1 = pointWidth + padding + labelPadding;
- int y0 = getHeight() - ((i * (getHeight() - padding * 2 - labelPadding)) / numberYDivisions + padding + labelPadding);
- int y1 = y0;
- if (scores.size() > 0) {
- g2.setColor(gridColor);
- g2.drawLine(padding + labelPadding + 1 + pointWidth, y0, getWidth() - padding, y1);
- g2.setColor(Color.BLACK);
- String yLabel = ((int) ((getMinScore() + (getMaxScore() - getMinScore()) * ((i * 1.0) / numberYDivisions)) * 100)) / 100.0 + "";
- FontMetrics metrics = g2.getFontMetrics();
- int labelWidth = metrics.stringWidth(yLabel);
- g2.drawString(yLabel, x0 - labelWidth - 5, y0 + (metrics.getHeight() / 2) - 3);
- }
- g2.drawLine(x0, y0, x1, y1);
- }
- // and for x axis
- for (int i = 0; i < scores.size(); i++) {
- if (scores.size() > 1) {
- int x0 = i * (getWidth() - padding * 2 - labelPadding) / (scores.size() - 1) + padding + labelPadding;
- int x1 = x0;
- int y0 = getHeight() - padding - labelPadding;
- int y1 = y0 - pointWidth;
- if ((i % ((int) ((scores.size() / 20.0)) + 1)) == 0) {
- g2.setColor(gridColor);
- g2.drawLine(x0, getHeight() - padding - labelPadding - 1 - pointWidth, x1, padding);
- g2.setColor(Color.BLACK);
- String xLabel = i + "";
- FontMetrics metrics = g2.getFontMetrics();
- int labelWidth = metrics.stringWidth(xLabel);
- g2.drawString(xLabel, x0 - labelWidth / 2, y0 + metrics.getHeight() + 3);
- }
- g2.drawLine(x0, y0, x1, y1);
- }
- }
- // create x and y axes
- g2.drawLine(padding + labelPadding, getHeight() - padding - labelPadding, padding + labelPadding, padding);
- g2.drawLine(padding + labelPadding, getHeight() - padding - labelPadding, getWidth() - padding, getHeight() - padding - labelPadding);
- Stroke oldStroke = g2.getStroke();
- g2.setColor(lineColor);
- g2.setStroke(GRAPH_STROKE);
- for (int i = 0; i < graphPoints.size() - 1; i++) {
- int x1 = graphPoints.get(i).x;
- int y1 = graphPoints.get(i).y;
- int x2 = graphPoints.get(i + 1).x;
- int y2 = graphPoints.get(i + 1).y;
- g2.drawLine(x1, y1, x2, y2);
- }
- g2.setStroke(oldStroke);
- g2.setColor(pointColor);
- for (int i = 0; i < graphPoints.size(); i++) {
- int x = graphPoints.get(i).x - pointWidth / 2;
- int y = graphPoints.get(i).y - pointWidth / 2;
- int ovalW = pointWidth;
- int ovalH = pointWidth;
- g2.fillOval(x, y, ovalW, ovalH);
- }
- }
- // @Override
- // public Dimension getPreferredSize() {
- // return new Dimension(width, heigth);
- // }
- private double getMinScore() {
- double minScore = Double.MAX_VALUE;
- for (Long score : scores) {
- minScore = Math.min(minScore, score);
- }
- return minScore;
- }
- private long getMaxScore() {
- long maxScore = Long.MIN_VALUE;
- for (Long score : scores) {
- maxScore = Math.max(maxScore, score);
- }
- return maxScore;
- }
- public void setScores(List<Long> scores) {
- this.scores = scores;
- invalidate();
- this.repaint();
- }
- public List<Long> getScores() {
- return scores;
- }
- private static void createAndShowGui(List<Long> scores) {
- //List<Long> scores = new ArrayList<>();
- // scores = this.getScores();
- Random random = new Random();
- int maxDataPoints = 40;
- int maxScore = 10;
- GraphPanel mainPanel = new GraphPanel(scores);
- mainPanel.setPreferredSize(new Dimension(800, 600));
- JFrame frame = new JFrame("DrawGraph");
- frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
- frame.getContentPane().add(mainPanel);
- frame.pack();
- frame.setLocationRelativeTo(null);
- frame.setVisible(true);
- }
- public static void yo(List<Long> scores) {
- SwingUtilities.invokeLater(new Runnable() {
- public void run() {
- createAndShowGui(scores);
- }
- });
- }
- }
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