Copyright Generator

Generator.java

package org.diao.tools.copyright;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextLayout;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.AttributedString;

import javax.imageio.ImageIO;

public class Generator {

	public static void main(String[] args) {
		final String fontName = "新宋体";
		final int fontSize = 12;
		// 图片的宽度
		int imageWidth = 500;
		// 图片的高度
		int imageHeight = 1000;

		BufferedImage image = new BufferedImage(imageWidth, imageHeight,
				BufferedImage.TYPE_INT_RGB);
		Graphics2D graphics = (Graphics2D) image.getGraphics();

		try {
			Font font = new Font(fontName, Font.PLAIN, fontSize);
			graphics.setFont(font);

			graphics.setColor(Color.WHITE);
			graphics.fillRect(0, 0, imageWidth, imageHeight);

			// 设置黑色字体,同样可以graphics.setColor(Color.black);
			graphics.setColor(new Color(0, 0, 0));

			String text = readString();

			AttributedString styledText = new AttributedString(text);
			LineBreakMeasurer measurer = new LineBreakMeasurer(
					styledText.getIterator(), graphics.getFontRenderContext());
			int startIndex = styledText.getIterator().getBeginIndex();
			int endIndex = styledText.getIterator().getEndIndex();
			measurer.setPosition(startIndex);
			float paddingLeft = imageWidth / 8f;
			float paddingRight = imageWidth / 8f;
			float boundWidth = imageWidth - paddingLeft - paddingRight;
			float x = paddingLeft, y = 0;
			while (measurer.getPosition() < endIndex) {
				TextLayout layout = measurer.nextLayout(boundWidth);
				y += layout.getAscent();
				float dx = layout.isLeftToRight() ? 0 : boundWidth
						- layout.getAdvance();

				layout.draw(graphics, x + dx, y);
				y += layout.getDescent() + layout.getLeading();
			}

			ImageIO.write(image, "PNG", new File("D:\\abc.png"));
			System.out.println("DONE");
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		// 释放资源
		graphics.dispose();
	}

	private static String readString() {
		String filePath = "D:\\origin.txt";
		String encoding = "GBK";
		StringBuilder result = new StringBuilder();
		try {
			InputStreamReader read = new InputStreamReader(new FileInputStream(
					new File(filePath)), encoding);
			BufferedReader br = new BufferedReader(read);
			String temp;
			while ((temp = br.readLine()) != null) {
				result.append(temp);
				result.append("\n");
			}
			br.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return result.toString();
	}
}