鼠标像素拾取器的实现(坐标&RGB)
环境:jdk1.2+包: import java.awt.BorderLayout;import java.awt.Color; import java.awt.Font;import java.awt.Point;import java.awt.Robot;import java.awt.Toolkit;import java.awt.datatransfer.Clipboard;import java.awt.datatransfer.StringSelection;import java.awt.datatransfer.Transferable;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.util.Timer;import java.util.TimerTask;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.border.EmptyBorder; 主类:MousePixInfo3(main内实例化) 第一步:设计界面构造函数内渲染jframe过程略.. 第二步:调用标准库: 利用Robot.getPixelColor(x,y)方法得到Color对象; 利用MouseInfo.getPointerInfo().getLocation()得到Point对象; 利用Integer.toHexString(int i)方法将rgb值转成更易读的十六进制; 利用Timer.schedule(TimerTask timerTask)周期刷新像素信息; 第三步:扩展功能: 1.jframe置顶(Jframe.setAlwaysOnTop(true))(非聚焦) 2.esc键退出(System.exit(0)) 3.空格暂停(timer.cancel()) 4.L键将坐标值存入系统剪切板 5.C键将颜色值存入系统剪切板 源码: package test; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Font; import java.awt.Point; import java.awt.Robot; import java.awt.Toolkit; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.StringSelection; import java.awt.datatransfer.Transferable; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.Timer; import java.util.TimerTask; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.border.EmptyBorder; public class MousePixInfo3 extends JFrame { /** * */ private static final long serialVersionUID = 1L; private final JPanel contentPanel = new JPanel(); static JLabel value_x = null; static JLabel value_y = null; static JLabel myPixColorHex = null; static Robot myRobot; static Timer timer = new Timer(); JLabel lblx = new JLabel("X :"); JLabel lbly = new JLabel("Y :"); static boolean isRunning = true; JLabel note1; JLabel note2; /** * Launch the application. */ public static void main(String[] args) { try { myRobot = new Robot(); MousePixInfo3 info_frame = new MousePixInfo3(); info_frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); info_frame.setVisible(true); info_frame.setAlwaysOnTop(true); info_frame.addKeyListener(new KeyListener() { @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub if (e.getKeyCode() == KeyEvent.VK_ESCAPE) { System.exit(0); } else if (e.getKeyChar() == ' ') { if (isRunning) { timer.cancel(); isRunning = false; } else { run(); isRunning = true; } } else if (e.getKeyChar() == 'l') { setSysClipboardText(value_x.getText() + "," + value_y.getText()); } else if (e.getKeyChar() == 'c') { setSysClipboardText(myPixColorHex.getText()); } } }); run(); } catch (Exception e) { e.printStackTrace(); } } /** * Create the dialog. */ public static void setSysClipboardText(String writeMe) { Clipboard clip = Toolkit.getDefaultToolkit().getSystemClipboard(); Transferable tText = new StringSelection(writeMe); clip.setContents(tText, null); } public static void run() { timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { Point point = java.awt.MouseInfo.getPointerInfo().getLocation(); Color myPixColor = myRobot.getPixelColor(point.x, point.y); String r = Integer.toHexString(myPixColor.getRed()); String g = Integer.toHexString(myPixColor.getGreen()); String b = Integer.toHexString(myPixColor.getBlue()); value_x.setText("" + point.x); // 双引号""把int转成string value_y.setText("" + point.y); myPixColorHex.setText("#" + r + g + b); } }, 100, 50);// 设置100ms后开始,每50ms检测一次坐标 } public MousePixInfo3() { timer = new Timer(); setTitle("像素采集神器"); setBounds(100, 100, 317, 192); getContentPane().setLayout(new BorderLayout()); contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5)); getContentPane().add(contentPanel, BorderLayout.CENTER); contentPanel.setLayout(null); lblx.setFont(new Font("宋体", Font.PLAIN, 15)); lblx.setBounds(22, 27, 66, 31); contentPanel.add(lblx); lbly.setFont(new Font("宋体", Font.PLAIN, 15)); lbly.setBounds(22, 68, 66, 31); contentPanel.add(lbly); value_x = new JLabel("0"); value_x.setForeground(Color.BLUE); value_x.setFont(new Font("宋体", Font.PLAIN, 20)); value_x.setBounds(64, 27, 66, 31); contentPanel.add(value_x); value_y = new JLabel("0"); value_y.setForeground(Color.BLUE); value_y.setFont(new Font("宋体", Font.PLAIN, 20)); value_y.setBounds(64, 68, 66, 31); contentPanel.add(value_y); myPixColorHex = new JLabel("0"); myPixColorHex.setForeground(Color.RED); myPixColorHex.setFont(new Font("宋体", Font.PLAIN, 32)); myPixColorHex.setBounds(142, 48, 128, 31); contentPanel.add(myPixColorHex); note1 = new JLabel("esc退出;Space暂停/继续", JLabel.CENTER); note1.setFont(new Font("幼圆", Font.PLAIN, 16)); getContentPane().add(note1, BorderLayout.SOUTH); note2 = new JLabel("'l'复制location;'c'复制color", JLabel.CENTER); note2.setFont(new Font("幼圆", Font.PLAIN, 16)); getContentPane().add(note2, BorderLayout.NORTH); } }
