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Dahua ICC Open API SDK for Java
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package com.dahuatech.hutool.core.swing;

import com.dahuatech.hutool.core.exceptions.UtilException;
import com.dahuatech.hutool.core.img.ImgUtil;
import com.dahuatech.hutool.core.swing.clipboard.ClipboardUtil;

import java.awt.*;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.io.File;

/**
 * {@link Robot} 封装工具类，提供截屏等工具
 *
 * @author looly
 * @since 4.1.14
 */
public class RobotUtil {

  private static final Robot robot;
  private static int delay;

  static {
    try {
      robot = new Robot();
    } catch (AWTException e) {
      throw new UtilException(e);
    }
  }

  /**
   * 设置默认的延迟时间

   * 当按键执行完后的等待时间，也可以用ThreadUtil.sleep方法代替
   *
   * @param delayMillis 等待毫秒数
   * @since 4.5.7
   */
  public static void setDelay(int delayMillis) {
    delay = delayMillis;
  }

  /**
   * 模拟鼠标移动
   *
   * @param x 移动到的x坐标
   * @param y 移动到的y坐标
   * @since 4.5.7
   */
  public static void mouseMove(int x, int y) {
    robot.mouseMove(x, y);
  }

  /**
   * 模拟单击

   * 鼠标单击包括鼠标左键的按下和释放
   *
   * @since 4.5.7
   */
  public static void click() {
    robot.mousePress(InputEvent.BUTTON1_MASK);
    robot.mouseRelease(InputEvent.BUTTON1_MASK);
    delay();
  }

  /**
   * 模拟右键单击

   * 鼠标单击包括鼠标右键的按下和释放
   *
   * @since 4.5.7
   */
  public static void rightClick() {
    robot.mousePress(InputEvent.BUTTON1_MASK);
    robot.mouseRelease(InputEvent.BUTTON1_MASK);
    delay();
  }

  /**
   * 模拟鼠标滚轮滚动
   *
   * @param wheelAmt 滚动数，负数表示向前滚动，正数向后滚动
   * @since 4.5.7
   */
  public static void mouseWheel(int wheelAmt) {
    robot.mouseWheel(wheelAmt);
    delay();
  }

  /**
   * 模拟键盘点击

   * 包括键盘的按下和释放
   *
   * @param keyCodes 按键码列表，见{@link java.awt.event.KeyEvent}
   * @since 4.5.7
   */
  public static void keyClick(int... keyCodes) {
    for (int keyCode : keyCodes) {
      robot.keyPress(keyCode);
      robot.keyRelease(keyCode);
    }
    delay();
  }

  /**
   * 打印输出指定字符串（借助剪贴板）
   *
   * @param str 字符串
   */
  public static void keyPressString(String str) {
    ClipboardUtil.setStr(str);
    keyPressWithCtrl(KeyEvent.VK_V); // 粘贴
    delay();
  }

  /**
   * shift+ 按键
   *
   * @param key 按键
   */
  public static void keyPressWithShift(int key) {
    robot.keyPress(KeyEvent.VK_SHIFT);
    robot.keyPress(key);
    robot.keyRelease(key);
    robot.keyRelease(KeyEvent.VK_SHIFT);
    delay();
  }

  /**
   * ctrl+ 按键
   *
   * @param key 按键
   */
  public static void keyPressWithCtrl(int key) {
    robot.keyPress(KeyEvent.VK_CONTROL);
    robot.keyPress(key);
    robot.keyRelease(key);
    robot.keyRelease(KeyEvent.VK_CONTROL);
    delay();
  }

  /**
   * alt+ 按键
   *
   * @param key 按键
   */
  public static void keyPressWithAlt(int key) {
    robot.keyPress(KeyEvent.VK_ALT);
    robot.keyPress(key);
    robot.keyRelease(key);
    robot.keyRelease(KeyEvent.VK_ALT);
    delay();
  }

  /**
   * 截取全屏
   *
   * @return 截屏的图片
   */
  public static BufferedImage captureScreen() {
    return captureScreen(ScreenUtil.getRectangle());
  }

  /**
   * 截取全屏到文件
   *
   * @param outFile 写出到的文件
   * @return 写出到的文件
   */
  public static File captureScreen(File outFile) {
    ImgUtil.write(captureScreen(), outFile);
    return outFile;
  }

  /**
   * 截屏
   *
   * @param screenRect 截屏的矩形区域
   * @return 截屏的图片
   */
  public static BufferedImage captureScreen(Rectangle screenRect) {
    return robot.createScreenCapture(screenRect);
  }

  /**
   * 截屏
   *
   * @param screenRect 截屏的矩形区域
   * @param outFile 写出到的文件
   * @return 写出到的文件
   */
  public static File captureScreen(Rectangle screenRect, File outFile) {
    ImgUtil.write(captureScreen(screenRect), outFile);
    return outFile;
  }

  /** 等待指定毫秒数 */
  private static void delay() {
    if (delay > 0) {
      robot.delay(delay);
    }
  }
}