package utils;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Random;

public class ImgUtils {

    public static BufferedImage getCheckImg(String code) {

        Random r = new Random();
        //  创建画布
        int width = 120;
        int height = 40;
        BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

        //  获得画笔
        Graphics g = bufferedImage.getGraphics();

        //  填充背景颜色
        g.setColor(Color.orange);
        g.fillRect(0, 0, width, height);

        //  绘制边框
        g.setColor(Color.BLACK);
        g.drawRect(0, 0, width - 1, height - 1);

        //  设置字体
        g.setFont(new Font("宋体", Font.BOLD, 28));

        //  绘制干扰线
        for (int i = 0; i < 6; i++) {
            //  设置随机颜色
            g.setColor(new Color(r.nextInt(255), r.nextInt(255), r.nextInt(255)));
            g.drawLine(r.nextInt(width), r.nextInt(height), r.nextInt(width), r.nextInt(height));
        }


        //  书写4个字符
        for (int i = 0; i < 4; i++) {
            String ch = code.charAt(i) + "";
            //  设置随机颜色
            g.setColor(new Color(r.nextInt(255), r.nextInt(255), r.nextInt(255)));
            g.drawString(ch, 10 + i * 28, 30);
        }

        return bufferedImage;

    }
}