import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.log4j.Logger;
/**
* 图片合成工具类
*
*/
public class PictureSynthesisUtil {
private static Logger logger = Logger.getLogger(PictureSynthesisUtil.class);
/**
* 签名合成,图片坐标系左上角为(0,0)
*
* @param imgPath 图片路径
* @param signaturePath 签名图片路径
* @param outFilePath 合成后图片路径
* @param xPlace 签名图片放置的x坐标
* @param yPlace 签名图片放置的y坐标
* @return 是否合成成功
* @throws IOException
*/
public static Boolean signatureSynthesis(String imgPath, String signaturePath, String outFilePath, int xPlace,
int yPlace) throws Exception {
logger.info("进入签名合成方法");
BufferedImage backImg = ImageIO.read(new File(imgPath));
BufferedImage signatureImg = ImageIO.read(new File(signaturePath));
File outFile = new File(outFilePath);
// 假如目标路径不存在,则新建该路径
if (!outFile.getParentFile().exists()) {
logger.info("合成后图片目标路径不存在,新建该路径");
outFile.getParentFile().mkdirs();
}
// 假如目标文件不存在,则新建该文件
if (!outFile.exists()) {
logger.info("合成后图片目标文件不存在,新建该文件");
outFile.createNewFile();
}
Graphics2D backG = backImg.createGraphics();
logger.info("开始合成签名");
backG.drawImage(signatureImg, xPlace, yPlace, signatureImg.getWidth(), signatureImg.getHeight(), null);
backG.dispose();
ImageIO.write(backImg, "png", new File(outFilePath));
logger.info("合成签名完成");
return true;
}
/**
* 签名合成,图片坐标系左上角为(0,0)
*
* @param imgPath 图片路径
* @param signaturePath 签名图片路径
* @param outFilePath 合成后图片路径
* @param xPlace 签名图片放置的x坐标
* @param yPlace 签名图片放置的y坐标
* @param signatureWidth 签名图片的宽
* @param signatureHeight 签名图片的高
* @return 是否合成成功
* @throws IOException
*/
public static Boolean signatureSynthesis(String imgPath, String signaturePath, String outFilePath, int xPlace,
int yPlace,int signatureWidth,int signatureHeight ) throws Exception {
logger.info("进入签名合成方法");
BufferedImage backImg = ImageIO.read(new File(imgPath));
BufferedImage signatureImg = ImageIO.read(new File(signaturePath));
File outFile = new File(outFilePath);
// 假如目标路径不存在,则新建该路径
if (!outFile.getParentFile().exists()) {
logger.info("合成后图片目标路径不存在,新建该路径");
outFile.getParentFile().mkdirs();
}
// 假如目标文件不存在,则新建该文件
if (!outFile.exists()) {
logger.info("合成后图片目标文件不存在,新建该文件");
outFile.createNewFile();
}
Graphics2D backG = backImg.createGraphics();
logger.info("开始合成签名");
backG.drawImage(signatureImg, xPlace, yPlace, signatureWidth, signatureHeight, null);
backG.dispose();
ImageIO.write(backImg, "png", new File(outFilePath));
logger.info("合成签名完成");
return true;
}
/**
* 获取inputFilePath的后缀名,如:"e:/test.pptx"的后缀名为:"pptx"
*
* @param inputFilePath
* @return
*/
public static String getPostfix(String inputFilePath) {
return inputFilePath.substring(inputFilePath.lastIndexOf(".") + 1);
}
}