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package beans;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;


/**
 * 图片处理工具类 基于https://blog.csdn.net/beinlife/article/details/53665152 改造
 */
public class ImageWatermark {
	   /**
     * 水印之间的横向间隔
     */
    private static final int XMOVE = 120;

    /**
     * 水印之间的纵向间隔
     */
    private static final int YMOVE = 75;

	public static void createWaterMarkByIcon(File srcImageFile, File logoImageFile,
            File outputImageFile, double degree) {
		
		OutputStream os = null;
		try {
			Image srcImg = ImageIO.read(srcImageFile);
			
			BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
			srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
			
			Graphics2D graphics = buffImg.createGraphics();
			
			buffImg = graphics.getDeviceConfiguration().createCompatibleImage(srcImg.getWidth(null), srcImg.getHeight(null), Transparency.TRANSLUCENT);
			graphics = buffImg.createGraphics();
			//graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
			
			int imgWidth = srcImg.getWidth(null);
			int imgHeight = srcImg.getHeight(null);
			
			graphics.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null),
			srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null);
			
			ImageIcon logoImgIcon = new ImageIcon(ImageIO.read(logoImageFile));
			Image logoImg = logoImgIcon.getImage();
			
			//旋转
			if (degree>0) {
			graphics.rotate(Math.toRadians(degree),
			(double) buffImg.getWidth() / 2,
			(double) buffImg.getHeight() / 2);
			}
			
			float alpha = 0.7f; // 透明度
			graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
			
			//水印 的位置
			Image logoImg2 = ImageIO.read(logoImageFile);
			int logoWidth = logoImg2.getWidth(null);
			
			int logoHeight = logoImg2.getHeight(null);
		
			
			// 文字长度相对于图片宽度应该有多少行
            int line =buffImg.getWidth()/logoWidth;
            int co = buffImg.getHeight()/logoHeight;


            // 填充Y轴方向
           
                for (int y = 0; y < co; y++) {
                    
                    // 填充X轴
                    for (int x = 0; x < line; x++) {
                    	graphics.drawImage(logoImg, 0+x*(logoWidth+XMOVE), 0+y*(logoHeight+YMOVE),logoWidth,logoHeight, null);

                       
                        
                    }
                  
                }
              
            
		//	graphics.drawImage(logoImg, (buffImg.getWidth()-logoWidth)/2, (buffImg.getHeight()-logoHeight)/2,logoWidth,logoHeight, null);
			//graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
			graphics.dispose();
		
			os = new FileOutputStream(outputImageFile);
			// 生成图片
			ImageIO.write(buffImg, "PNG", os);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (null != os)
				os.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}


    public static void main(String[] args) {
    	 createWaterMarkByIcon(new File("c:/old/444_out.jpg"),new File("c:/old/markt.png"),
    			 new File("c:/old/1999.png"),0);
    }
}