类一
package com.screenshot;
import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.imageio.*;
/**
* 一个简单的屏幕抓图
*
**/
public class ScreenCapture {
// test main
public static void main(String[] args) throws Exception {
String userdir = System.getProperty("user.dir");
File tempFile = new File("d:", "temp.png");
ScreenCapture capture = ScreenCapture.getInstance();
capture.captureImage();
JFrame frame = new JFrame();
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
JLabel imagebox = new JLabel();
panel.add(BorderLayout.CENTER, imagebox);
imagebox.setIcon(capture.getPickedIcon());
capture.saveToFile(tempFile);
capture.captureImage();
imagebox.setIcon(capture.getPickedIcon());
frame.setContentPane(panel);
frame.setSize(400, 300);
frame.show();
System.out.println("Over");
}
private ScreenCapture() {
try {
robot = new Robot();
} catch (AWTException e) {
System.err.println("Internal Error: " + e);
e.printStackTrace();
}
JPanel cp = (JPanel) dialog.getContentPane();
cp.setLayout(new BorderLayout());
labFullScreenImage.addMouseListener(new MouseAdapter() {
public void mouseReleased(MouseEvent evn) {
isFirstPoint = true;
pickedImage = fullScreenImage.getSubimage(recX, recY, recW,
recH);
dialog.setVisible(false);
}
});
labFullScreenImage.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent evn) {
if (isFirstPoint) {
x1 = evn.getX();
y1 = evn.getY();
isFirstPoint = false;
} else {
x2 = evn.getX();
y2 = evn.getY();
int maxX = Math.max(x1, x2);
int maxY = Math.max(y1, y2);
int minX = Math.min(x1, x2);
int minY = Math.min(y1, y2);
recX = minX;
recY = minY;
recW = maxX - minX;
recH = maxY - minY;
labFullScreenImage.drawRectangle(recX, recY, recW, recH);
}
}
public void mouseMoved(MouseEvent e) {
labFullScreenImage.drawCross(e.getX(), e.getY());
}
});
cp.add(BorderLayout.CENTER, labFullScreenImage);
dialog.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
dialog.setAlwaysOnTop(true);
dialog.setMaximumSize(Toolkit.getDefaultToolkit().getScreenSize());
dialog.setUndecorated(true);
dialog.setSize(dialog.getMaximumSize());
dialog.setModal(true);
}
// Singleton Pattern
public static ScreenCapture getInstance() {
return defaultCapturer;
}
/** 捕捉全屏慕 */
public Icon captureFullScreen() {
fullScreenImage = robot.createScreenCapture(new Rectangle(Toolkit
.getDefaultToolkit().getScreenSize()));
ImageIcon icon = new ImageIcon(fullScreenImage);
return icon;
}
/** 捕捉屏幕的一个矫形区域 */
public void captureImage() {
fullScreenImage = robot.createScreenCapture(new Rectangle(Toolkit
.getDefaultToolkit().getScreenSize()));
ImageIcon icon = new ImageIcon(fullScreenImage);
labFullScreenImage.setIcon(icon);
dialog.setVisible(true);
}
/** 得到捕捉后的BufferedImage */
public BufferedImage getPickedImage() {
return pickedImage;
}
/** 得到捕捉后的Icon */
public ImageIcon getPickedIcon() {
return new ImageIcon(getPickedImage());
}
/**
* 储存为一个文件,为PNG格式
*
* @deprecated replaced by saveAsPNG(File file)
**/
@Deprecated
public void saveToFile(File file) throws IOException {
ImageIO.write(getPickedImage(), defaultImageFormater, file);
}
/** 储存为一个文件,为PNG格式 */
public void saveAsPNG(File file) throws IOException {
ImageIO.write(getPickedImage(), "png", file);
}
/** 储存为一个JPEG格式图像文件 */
public void saveAsJPEG(File file) throws IOException {
ImageIO.write(getPickedImage(), "JPEG", file);
}
/** 写入一个OutputStream */
public void write(OutputStream out) throws IOException {
ImageIO.write(getPickedImage(), defaultImageFormater, out);
}
// singleton design pattern
private static ScreenCapture defaultCapturer = new ScreenCapture();
private int x1, y1, x2, y2;
private int recX, recY, recH, recW; // 截取的图像
private boolean isFirstPoint = true;
private BackgroundImage labFullScreenImage = new BackgroundImage();
private Robot robot;
private BufferedImage fullScreenImage;
private BufferedImage pickedImage;
private String defaultImageFormater = "png";
private JDialog dialog = new JDialog();
}
/** 显示图片的Label */
class BackgroundImage extends JLabel {
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawRect(x, y, w, h);
String area = Integer.toString(w) + " * " + Integer.toString(h);
g.drawString(area, x + (int) w / 2 - 15, y + (int) h / 2);
g.drawLine(lineX, 0, lineX, getHeight());
g.drawLine(0, lineY, getWidth(), lineY);
}
public void drawRectangle(int x, int y, int width, int height) {
this.x = x;
this.y = y;
h = height;
w = width;
repaint();
}
public void drawCross(int x, int y) {
lineX = x;
lineY = y;
repaint();
}
int lineX, lineY;
int x, y, h, w;
}
类二
package com.screenshot;
import java.awt.Desktop;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
/**
* 截屏使用
*
* @author
*
*/
public class CaptureScreen {
public static void captureScreen(String fileName, String folder)
throws Exception {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Rectangle screenRectangle = new Rectangle(screenSize);
Robot robot = new Robot();
BufferedImage image = robot.createScreenCapture(screenRectangle);
// 保存路径
File screenFile = new File(fileName);
if (!screenFile.exists()) {
screenFile.mkdir();
}
File f = new File(screenFile, folder);
ImageIO.write(image, "png", f);
// 自动打开
if (Desktop.isDesktopSupported()
&& Desktop.getDesktop().isSupported(Desktop.Action.OPEN))
Desktop.getDesktop().open(f);
}
public static void main(String[] args) {
try {
captureScreen("e:\\你好", "12.png");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
类三
package com.screenshot;
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import javax.imageio.*;
import java.awt.image.*;
public class CaptureScreenTwo extends JFrame implements ActionListener {
private JButton start, cancel, saveAll;
private JPanel c;
private BufferedImage get;
private JTabbedPane jtp;// 一个放置很多份图片
private int index;// 一个一直会递增的索引,用于标认图片
private JRadioButton java, system;// JAVA界面,系统界面
/** Creates a new instance of CaptureScreen */
public CaptureScreenTwo() {
super("屏幕截取软件(第三版)");
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception exe) {
exe.printStackTrace();
}
initWindow();
initOther();
initTrayIcon();
}
private void initOther() {
jtp = new JTabbedPane(JTabbedPane.TOP, JTabbedPane.SCROLL_TAB_LAYOUT);
}
private void initWindow() {
start = new JButton("开始截取");
saveAll = new JButton("保存所有");
cancel = new JButton("退出");
start.addActionListener(this);
saveAll.addActionListener(this);
cancel.addActionListener(this);
JPanel buttonJP = new JPanel();
c = new JPanel(new BorderLayout());
c.setBackground(Color.BLACK);
JLabel jl = new JLabel("屏幕截取", JLabel.CENTER);
jl.setFont(new Font("黑体", Font.BOLD, 40));
jl.setForeground(Color.RED);
c.add(jl, BorderLayout.CENTER);
buttonJP.add(start);
buttonJP.add(saveAll);
buttonJP.add(cancel);
buttonJP.setBorder(BorderFactory.createTitledBorder("公共操作区"));
JPanel jp = new JPanel();// 放两个单选按钮的面板
jp.add(java = new JRadioButton("java界面"));
jp.add(system = new JRadioButton("系统界面", true));
java.addActionListener(this);
system.addActionListener(this);
jp.setBorder(BorderFactory.createTitledBorder("界面风格"));
ButtonGroup bg = new ButtonGroup();
bg.add(java);
bg.add(system);
JPanel all = new JPanel();
all.add(jp);
all.add(buttonJP);
this.getContentPane().add(c, BorderLayout.CENTER);
this.getContentPane().add(all, BorderLayout.SOUTH);
this.setSize(500, 400);
this.setLocationRelativeTo(null);
this.setVisible(true);
this.setAlwaysOnTop(true);
this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we) {
CaptureScreenTwo.this.setVisible(false);
}
});
}
private void initTrayIcon() {
try {
SystemTray st = SystemTray.getSystemTray();
Image im = ImageIO.read(this.getClass().getResource("bg.gif"));
PopupMenu pm = new PopupMenu("弹出菜单");
pm.add(new MenuItem("关于")).addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JOptionPane
.showMessageDialog(
CaptureScreenTwo.this,
"<html><Font color=red><center><h2>关于</h2></center></Font>"
+ "这是一款纯JAVA的屏幕截取程序<br>在以前的基础上增加了一些常用的功能,<br>"
+ "比如,批量保存,多幅截取,复制到系统粘帖板...<br>"
+ "在使用过程中有任何问题,欢迎联系.<br>"
+ "<Font size=5 color=blue>作者:千里冰封<br>"
+ "<i>QQ:24325142</i><br></Font></html>");
}
});
pm.addSeparator();
pm.add(new MenuItem("显示主窗口")).addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent ae) {
CaptureScreenTwo.this.setVisible(true);
}
});
pm.add(new MenuItem("开始截取")).addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent ae) {
doStart();
}
});
pm.add(new MenuItem("退出程序")).addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent ae) {
System.exit(0);
}
});
TrayIcon ti = new TrayIcon(im, "JAVA屏幕截取", pm);
st.add(ti);
ti.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
CaptureScreenTwo.this.setVisible(true);
}
});
} catch (Exception exe) {
exe.printStackTrace();
}
}
private void updates() {
this.setVisible(true);
if (get != null) {
// 如果索引是0,则表示一张图片都没有被加入过,
// 则要清除当前的东西,重新把tabpane放进来
if (index == 0) {
c.removeAll();
c.add(jtp, BorderLayout.CENTER);
} else {// 否则的话,直接对tabpane添加面板就可以了
// 就什么都不用做了
}
PicPanel pic = new PicPanel(get);
jtp.addTab("图片" + (++index), pic);
jtp.setSelectedComponent(pic);
SwingUtilities.updateComponentTreeUI(c);
}
}
private void doStart() {
try {
this.setVisible(false);
Thread.sleep(500);// 睡500毫秒是为了让主窗完全不见
Robot ro = new Robot();
Toolkit tk = Toolkit.getDefaultToolkit();
Dimension di = tk.getScreenSize();
Rectangle rec = new Rectangle(0, 0, di.width, di.height);
BufferedImage bi = ro.createScreenCapture(rec);
JFrame jf = new JFrame();
Temp temp = new Temp(jf, bi, di.width, di.height);
jf.getContentPane().add(temp, BorderLayout.CENTER);
jf.setUndecorated(true);
jf.setSize(di);
jf.setVisible(true);
jf.setAlwaysOnTop(true);
} catch (Exception exe) {
exe.printStackTrace();
}
}
/**
* 公共方法,处理保存所有的图片
*/
public void doSaveAll() {
if (jtp.getTabCount() == 0) {
JOptionPane.showMessageDialog(this, "图片不能为空!!", "错误",
JOptionPane.ERROR_MESSAGE);
return;
}
JFileChooser jfc = new JFileChooser(".");
jfc.addChoosableFileFilter(new GIFfilter());
jfc.addChoosableFileFilter(new BMPfilter());
jfc.addChoosableFileFilter(new JPGfilter());
jfc.addChoosableFileFilter(new PNGfilter());
int i = jfc.showSaveDialog(this);
if (i == JFileChooser.APPROVE_OPTION) {
File file = jfc.getSelectedFile();
String about = "PNG";
String ext = file.toString().toLowerCase();
javax.swing.filechooser.FileFilter ff = jfc.getFileFilter();
if (ff instanceof JPGfilter) {
about = "JPG";
} else if (ff instanceof PNGfilter) {
about = "PNG";
} else if (ff instanceof BMPfilter) {
about = "BMP";
} else if (ff instanceof GIFfilter) {
about = "GIF";
}
if (ext.endsWith(about.toLowerCase())) {
ext = ext.substring(0, ext.lastIndexOf(about.toLowerCase()));
}
// 起一个线程去保存这些图片并显示出进度条
new SaveAllThread(ext, about).setVisible(true);
}
}
// 专门用来保存所有图片的线程类,它还要显示出保存的进度条
private class SaveAllThread extends JDialog implements Runnable {
private String name;// 文件名头部份
private String ext;// 文件格式
private JProgressBar jpb;// 一个进度条
private JLabel info;// 一个信息显示条
private int allTask, doneTask;// 所有任务,已完成任务
public SaveAllThread(String name, String ext) {
super(CaptureScreenTwo.this, "保存", true);
this.name = name;
this.ext = ext;
initWindow();
}
private void initWindow() {
jpb = new JProgressBar();
allTask = jtp.getTabCount();
jpb.setMaximum(allTask);
jpb.setMinimum(0);
jpb.setValue(0);
jpb.setStringPainted(true);
setProgressBarString();
info = new JLabel("正在保存到:");
this.getContentPane().setBackground(Color.CYAN);
this.add(info, BorderLayout.NORTH);
this.add(jpb, BorderLayout.SOUTH);
this.setUndecorated(true);
this.setSize(300, 100);
this.setLocationRelativeTo(CaptureScreenTwo.this);
new Thread(this).start();
}
private void setProgressBarString() {
jpb.setString("" + doneTask + "/" + allTask);
}
public void run() {
try {
for (int i = 0; i < allTask; i++) {
PicPanel pp = (PicPanel) jtp.getComponentAt(i);
BufferedImage image = pp.getImage();
File f = new File(name + (doneTask + 1) + "."
+ ext.toLowerCase());
info.setText("<html><b>正在保存到:</b><br>" + f.toString()
+ "</html>");
ImageIO.write(image, ext, f);
doneTask++;
jpb.setValue(doneTask);
setProgressBarString();
Thread.sleep(500);
}
JOptionPane.showMessageDialog(this, "保存完毕!!");
this.dispose();
} catch (Exception exe) {
exe.printStackTrace();
this.dispose();
}
}
}
/**
* 公用的处理保存图片的方法 这个方法不再私有了
*/
public void doSave(BufferedImage get) {
try {
if (get == null) {
JOptionPane.showMessageDialog(this, "图片不能为空!!", "错误",
JOptionPane.ERROR_MESSAGE);
return;
}
JFileChooser jfc = new JFileChooser(".");
jfc.addChoosableFileFilter(new GIFfilter());
jfc.addChoosableFileFilter(new BMPfilter());
jfc.addChoosableFileFilter(new JPGfilter());
jfc.addChoosableFileFilter(new PNGfilter());
int i = jfc.showSaveDialog(this);
if (i == JFileChooser.APPROVE_OPTION) {
File file = jfc.getSelectedFile();
String about = "PNG";
String ext = file.toString().toLowerCase();
javax.swing.filechooser.FileFilter ff = jfc.getFileFilter();
if (ff instanceof JPGfilter) {
about = "JPG";
if (!ext.endsWith(".jpg")) {
String ns = ext + ".jpg";
file = new File(ns);
}
} else if (ff instanceof PNGfilter) {
about = "PNG";
if (!ext.endsWith(".png")) {
String ns = ext + ".png";
file = new File(ns);
}
} else if (ff instanceof BMPfilter) {
about = "BMP";
if (!ext.endsWith(".bmp")) {
String ns = ext + ".bmp";
file = new File(ns);
}
} else if (ff instanceof GIFfilter) {
about = "GIF";
if (!ext.endsWith(".gif")) {
String ns = ext + ".gif";
file = new File(ns);
}
}
if (ImageIO.write(get, about, file)) {
JOptionPane.showMessageDialog(this, "保存成功！");
} else
JOptionPane.showMessageDialog(this, "保存失败！");
}
} catch (Exception exe) {
exe.printStackTrace();
}
}
/**
* 公共的处理把当前的图片加入剪帖板的方法
*/
public void doCopy(final BufferedImage image) {
try {
if (get == null) {
JOptionPane.showMessageDialog(this, "图片不能为空!!", "错误",
JOptionPane.ERROR_MESSAGE);
return;
}
Transferable trans = new Transferable() {
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { DataFlavor.imageFlavor };
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
return DataFlavor.imageFlavor.equals(flavor);
}
public Object getTransferData(DataFlavor flavor)
throws UnsupportedFlavorException, IOException {
if (isDataFlavorSupported(flavor))
return image;
throw new UnsupportedFlavorException(flavor);
}
};
Toolkit.getDefaultToolkit().getSystemClipboard()
.setContents(trans, null);
JOptionPane.showMessageDialog(this, "已复制到系统粘帖板!!");
} catch (Exception exe) {
exe.printStackTrace();
JOptionPane.showMessageDialog(this, "复制到系统粘帖板出错!!", "错误",
JOptionPane.ERROR_MESSAGE);
}
}
// 处理关闭事件
private void doClose(Component c) {
jtp.remove(c);
c = null;
System.gc();
}
public void actionPerformed(ActionEvent ae) {
Object source = ae.getSource();
if (source == start) {
doStart();
} else if (source == cancel) {
System.exit(0);
} else if (source == java) {
try {
UIManager.setLookAndFeel(UIManager
.getCrossPlatformLookAndFeelClassName());
SwingUtilities.updateComponentTreeUI(this);
} catch (Exception exe) {
exe.printStackTrace();
}
} else if (source == system) {
try {
UIManager.setLookAndFeel(UIManager
.getSystemLookAndFeelClassName());
SwingUtilities.updateComponentTreeUI(this);
} catch (Exception exe) {
exe.printStackTrace();
}
} else if (source == saveAll) {
doSaveAll();
}
}
// 一个内部类,它表示一个面板,一个可以被放进tabpane的面板
// 也有自己的一套处理保存和复制的方法
private class PicPanel extends JPanel implements ActionListener {
JButton save, copy, close;// 表示保存,复制,关闭的按钮
BufferedImage get;// 得到的图片
public PicPanel(BufferedImage get) {
super(new BorderLayout());
this.get = get;
initPanel();
}
public BufferedImage getImage() {
return get;
}
private void initPanel() {
save = new JButton("保存(S)");
copy = new JButton("复制到剪帖板(C)");
close = new JButton("关闭(X)");
save.setMnemonic('S');
copy.setMnemonic('C');
close.setMnemonic('X');
JPanel buttonPanel = new JPanel();
buttonPanel.add(copy);
buttonPanel.add(save);
buttonPanel.add(close);
JLabel icon = new JLabel(new ImageIcon(get));
this.add(new JScrollPane(icon), BorderLayout.CENTER);
this.add(buttonPanel, BorderLayout.SOUTH);
save.addActionListener(this);
copy.addActionListener(this);
close.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
if (source == save) {
doSave(get);
} else if (source == copy) {
doCopy(get);
} else if (source == close) {
get = null;
doClose(this);
}
}
}
// 保存BMP格式的过滤器
private class BMPfilter extends javax.swing.filechooser.FileFilter {
public BMPfilter() {
}
public boolean accept(File file) {
if (file.toString().toLowerCase().endsWith(".bmp")
|| file.isDirectory()) {
return true;
} else
return false;
}
public String getDescription() {
return "*.BMP(BMP图像)";
}
}
// 保存JPG格式的过滤器
private class JPGfilter extends javax.swing.filechooser.FileFilter {
public JPGfilter() {
}
public boolean accept(File file) {
if (file.toString().toLowerCase().endsWith(".jpg")
|| file.isDirectory()) {
return true;
} else
return false;
}
public String getDescription() {
return "*.JPG(JPG图像)";
}
}
// 保存GIF格式的过滤器
private class GIFfilter extends javax.swing.filechooser.FileFilter {
public GIFfilter() {
}
public boolean accept(File file) {
if (file.toString().toLowerCase().endsWith(".gif")
|| file.isDirectory()) {
return true;
} else
return false;
}
public String getDescription() {
return "*.GIF(GIF图像)";
}
}
// 保存PNG格式的过滤器
private class PNGfilter extends javax.swing.filechooser.FileFilter {
public boolean accept(File file) {
if (file.toString().toLowerCase().endsWith(".png")
|| file.isDirectory()) {
return true;
} else
return false;
}
public String getDescription() {
return "*.PNG(PNG图像)";
}
}
// 一个暂时类，用于显示当前的屏幕图像
private class Temp extends JPanel implements MouseListener,
MouseMotionListener {
private BufferedImage bi;
private int width, height;
private int startX, startY, endX, endY, tempX, tempY;
private JFrame jf;
private Rectangle select = new Rectangle(0, 0, 0, 0);// 表示选中的区域
private Cursor cs = new Cursor(Cursor.CROSSHAIR_CURSOR);// 表示一般情况下的鼠标状态
private States current = States.DEFAULT;// 表示当前的编辑状态
private Rectangle[] rec;// 表示八个编辑点的区域
// 下面四个常量,分别表示谁是被选中的那条线上的端点
public static final int START_X = 1;
public static final int START_Y = 2;
public static final int END_X = 3;
public static final int END_Y = 4;
private int currentX, currentY;// 当前被选中的X和Y,只有这两个需要改变
private Point p = new Point();// 当前鼠标移的地点
private boolean showTip = true;// 是否显示提示.如果鼠标左键一按,则提示不再显了
public Temp(JFrame jf, BufferedImage bi, int width, int height) {
this.jf = jf;
this.bi = bi;
this.width = width;
this.height = height;
this.addMouseListener(this);
this.addMouseMotionListener(this);
initRecs();
}
private void initRecs() {
rec = new Rectangle[8];
for (int i = 0; i < rec.length; i++) {
rec[i] = new Rectangle();
}
}
public void paintComponent(Graphics g) {
g.drawImage(bi, 0, 0, width, height, this);
g.setColor(Color.RED);
g.drawLine(startX, startY, endX, startY);
g.drawLine(startX, endY, endX, endY);
g.drawLine(startX, startY, startX, endY);
g.drawLine(endX, startY, endX, endY);
int x = startX < endX ? startX : endX;
int y = startY < endY ? startY : endY;
select = new Rectangle(x, y, Math.abs(endX - startX), Math.abs(endY
- startY));
int x1 = (startX + endX) / 2;
int y1 = (startY + endY) / 2;
g.fillRect(x1 - 2, startY - 2, 5, 5);
g.fillRect(x1 - 2, endY - 2, 5, 5);
g.fillRect(startX - 2, y1 - 2, 5, 5);
g.fillRect(endX - 2, y1 - 2, 5, 5);
g.fillRect(startX - 2, startY - 2, 5, 5);
g.fillRect(startX - 2, endY - 2, 5, 5);
g.fillRect(endX - 2, startY - 2, 5, 5);
g.fillRect(endX - 2, endY - 2, 5, 5);
rec[0] = new Rectangle(x - 5, y - 5, 10, 10);
rec[1] = new Rectangle(x1 - 5, y - 5, 10, 10);
rec[2] = new Rectangle((startX > endX ? startX : endX) - 5, y - 5,
10, 10);
rec[3] = new Rectangle((startX > endX ? startX : endX) - 5, y1 - 5,
10, 10);
rec[4] = new Rectangle((startX > endX ? startX : endX) - 5,
(startY > endY ? startY : endY) - 5, 10, 10);
rec[5] = new Rectangle(x1 - 5, (startY > endY ? startY : endY) - 5,
10, 10);
rec[6] = new Rectangle(x - 5, (startY > endY ? startY : endY) - 5,
10, 10);
rec[7] = new Rectangle(x - 5, y1 - 5, 10, 10);
if (showTip) {
g.setColor(Color.CYAN);
g.fillRect(p.x, p.y, 170, 20);
g.setColor(Color.RED);
g.drawRect(p.x, p.y, 170, 20);
g.setColor(Color.BLACK);
g.drawString("请按住鼠标左键不放选择截图区", p.x, p.y + 15);
}
}
// 根据东南西北等八个方向决定选中的要修改的X和Y的座标
private void initSelect(States state) {
switch (state) {
case DEFAULT:
currentX = 0;
currentY = 0;
break;
case EAST:
currentX = (endX > startX ? END_X : START_X);
currentY = 0;
break;
case WEST:
currentX = (endX > startX ? START_X : END_X);
currentY = 0;
break;
case NORTH:
currentX = 0;
currentY = (startY > endY ? END_Y : START_Y);
break;
case SOUTH:
currentX = 0;
currentY = (startY > endY ? START_Y : END_Y);
break;
case NORTH_EAST:
currentY = (startY > endY ? END_Y : START_Y);
currentX = (endX > startX ? END_X : START_X);
break;
case NORTH_WEST:
currentY = (startY > endY ? END_Y : START_Y);
currentX = (endX > startX ? START_X : END_X);
break;
case SOUTH_EAST:
currentY = (startY > endY ? START_Y : END_Y);
currentX = (endX > startX ? END_X : START_X);
break;
case SOUTH_WEST:
currentY = (startY > endY ? START_Y : END_Y);
currentX = (endX > startX ? START_X : END_X);
break;
default:
currentX = 0;
currentY = 0;
break;
}
}
public void mouseMoved(MouseEvent me) {
doMouseMoved(me);
initSelect(current);
if (showTip) {
p = me.getPoint();
repaint();
}
}
// 特意定义一个方法处理鼠标移动,是为了每次都能初始化一下所要选择的地区
private void doMouseMoved(MouseEvent me) {
if (select.contains(me.getPoint())) {
this.setCursor(new Cursor(Cursor.MOVE_CURSOR));
current = States.MOVE;
} else {
States[] st = States.values();
for (int i = 0; i < rec.length; i++) {
if (rec[i].contains(me.getPoint())) {
current = st[i];
this.setCursor(st[i].getCursor());
return;
}
}
this.setCursor(cs);
current = States.DEFAULT;
}
}
public void mouseExited(MouseEvent me) {
}
public void mouseEntered(MouseEvent me) {
}
public void mouseDragged(MouseEvent me) {
int x = me.getX();
int y = me.getY();
if (current == States.MOVE) {
startX += (x - tempX);
startY += (y - tempY);
endX += (x - tempX);
endY += (y - tempY);
tempX = x;
tempY = y;
} else if (current == States.EAST || current == States.WEST) {
if (currentX == START_X) {
startX += (x - tempX);
tempX = x;
} else {
endX += (x - tempX);
tempX = x;
}
} else if (current == States.NORTH || current == States.SOUTH) {
if (currentY == START_Y) {
startY += (y - tempY);
tempY = y;
} else {
endY += (y - tempY);
tempY = y;
}
} else if (current == States.NORTH_EAST
|| current == States.NORTH_EAST
|| current == States.SOUTH_EAST
|| current == States.SOUTH_WEST) {
if (currentY == START_Y) {
startY += (y - tempY);
tempY = y;
} else {
endY += (y - tempY);
tempY = y;
}
if (currentX == START_X) {
startX += (x - tempX);
tempX = x;
} else {
endX += (x - tempX);
tempX = x;
}
} else {
startX = tempX;
startY = tempY;
endX = me.getX();
endY = me.getY();
}
this.repaint();
}
public void mousePressed(MouseEvent me) {
showTip = false;
tempX = me.getX();
tempY = me.getY();
}
public void mouseReleased(MouseEvent me) {
if (me.isPopupTrigger()) {
if (current == States.MOVE) {
showTip = true;
p = me.getPoint();
startX = 0;
startY = 0;
endX = 0;
endY = 0;
repaint();
} else {
jf.dispose();
updates();
}
}
}
public void mouseClicked(MouseEvent me) {
if (me.getClickCount() == 2) {
// Rectangle rec=new
// Rectangle(startX,startY,Math.abs(endX-startX),Math.abs(endY-startY));
Point p = me.getPoint();
if (select.contains(p)) {
if (select.x + select.width < this.getWidth()
&& select.y + select.height < this.getHeight()) {
get = bi.getSubimage(select.x, select.y, select.width,
select.height);
jf.dispose();
updates();
} else {
int wid = select.width, het = select.height;
if (select.x + select.width >= this.getWidth()) {
wid = this.getWidth() - select.x;
}
if (select.y + select.height >= this.getHeight()) {
het = this.getHeight() - select.y;
}
get = bi.getSubimage(select.x, select.y, wid, het);
jf.dispose();
updates();
}
}
}
}
}
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new CaptureScreen();
}
});
}
}
// 一些表示状态的枚举
enum States {
NORTH_WEST(new Cursor(Cursor.NW_RESIZE_CURSOR)), // 表示西北角
NORTH(new Cursor(Cursor.N_RESIZE_CURSOR)), NORTH_EAST(new Cursor(
Cursor.NE_RESIZE_CURSOR)), EAST(new Cursor(Cursor.E_RESIZE_CURSOR)), SOUTH_EAST(
new Cursor(Cursor.SE_RESIZE_CURSOR)), SOUTH(new Cursor(
Cursor.S_RESIZE_CURSOR)), SOUTH_WEST(new Cursor(
Cursor.SW_RESIZE_CURSOR)), WEST(new Cursor(Cursor.W_RESIZE_CURSOR)), MOVE(
new Cursor(Cursor.MOVE_CURSOR)), DEFAULT(new Cursor(
Cursor.DEFAULT_CURSOR));
private Cursor cs;
States(Cursor cs) {
this.cs = cs;
}
public Cursor getCursor() {
return cs;
}
}
