public class Typeface {
    public static void main(String[] args) {
        List<String> fontNames = new java.util.ArrayList<>();
        Font[] fonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
        for (Font font : fonts){
            fontNames.add(font.getName());
        }
        fontNames.forEach(System.out::println);
    }
}

public class DrawDraft {
  public static void main(String[] args) throws Exception {
    // 1、創(chuàng)建圖片繪圖
    BufferedImage image = new BufferedImage(500, 500, BufferedImage.TYPE_4BYTE_ABGR);
    Graphics2D graphics = image.createGraphics();
    graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    // 2、填充背景色
    graphics.setColor(Color.white);
    graphics.fillRect(0, 0, 500, 500);

    // 3、繪制線條
    graphics.setStroke(new BasicStroke(3));
    graphics.setColor(Color.red);
    graphics.drawLine(50, 50, 280, 50);
    graphics.setColor(Color.blue);
    graphics.drawLine(50, 50, 165, 200);
    graphics.setColor(Color.green);
    graphics.drawLine(280, 50, 165, 200);

    // 4、繪制圖形
    graphics.setStroke(new BasicStroke(2));
    graphics.setColor(Color.pink);
    graphics.drawRect(200, 200, 80, 50);// 矩形

    graphics.setColor(Color.green);
    graphics.drawArc(280, 280, 100, 100, 0, 180);//圓弧線
    graphics.drawArc(300, 300, 100, 50, 0, -270);//圓弧線弧度

    graphics.setColor(Color.orange);
    graphics.drawArc(350, 350, 100, 100, 0, 180);//圓弧線
    graphics.fillArc(350, 350, 100, 100, 0, -270);//填充四分之三的圓形

    // 5、寫到圖片
    ImageIO.write(image, "png", new File("src/main/draw-draft.png"));

    image.flush();
    graphics.dispose();
  }
}

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;

public class DrawImage {

  public static void main(String[] args) throws Exception {
    // 1、基礎(chǔ)樣式
    Font yhFont = new Font("Microsoft Yahei UI", Font.PLAIN, 15);
    Font yhBoldFont = new Font("Microsoft Yahei UI Bold", Font.BOLD, 25);
    Font tailFont = new Font("Microsoft Yahei UI Bold", Font.PLAIN, 12);

    // 2、基于底圖繪制
    BufferedImage backImg = ImageIO.read(new File("src/main/draw-draft.png"));
    int canvasWidth = backImg.getWidth();
    int canvasHeight = backImg.getHeight();

    // 3、創(chuàng)建畫筆
    Graphics2D graphics = backImg.createGraphics();
    graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

    // 4、繪制居中標(biāo)題
    graphics.setFont(yhBoldFont);
    graphics.setColor(Color.BLACK);
    String title = "2D繪圖";
    int titleWidth = graphics.getFontMetrics().stringWidth(title);
    int titleX = canvasWidth/2-titleWidth/2;
    int titleY = 50;
    graphics.drawString(title, titleX, titleY);

    // 5、繪制長文本，左對齊和換行
    graphics.setFont(yhFont);
    graphics.setColor(Color.BLACK);
    String blackText = "\u3000組織需要重新審視項目的核心價值主張，以便更好地與利益相關(guān)者對齊目標(biāo)，協(xié)同共創(chuàng)。";
    String[] textWord = blackText.split("");
    // 文本最大寬度和行高
    int textMaxWidth = 200;
    int textLineHeight = 18;
    // 文本字符輸出起始坐標(biāo)
    int textWordX = 20;
    int textWordY = 350;
    // 通過計算控制單行文本長度
    StringBuilder textLine = new StringBuilder();
    for (String word : textWord){
      graphics.drawString(word, textWordX, textWordY);
      if (graphics.getFontMetrics().stringWidth(textLine + word) <= textMaxWidth) {
        // 不需要換行，記錄單行內(nèi)容，移動X坐標(biāo)
        textLine.append(word);
        textWordX = textWordX + graphics.getFontMetrics().stringWidth(word);
      } else {
        // 需要換行，重置當(dāng)行文本內(nèi)容，移動X坐標(biāo)和Y坐標(biāo)
        textLine.setLength(0);
        textWordX = 20 ;
        textWordY = textWordY+textLineHeight;
      }
    }

    // 6、繪制短文本，右對齊
    graphics.setFont(tailFont);
    graphics.setColor(Color.BLUE);
    String author = "制圖方：白天睡不著";
    int authorWidth = canvasWidth-30-graphics.getFontMetrics().stringWidth(author);
    graphics.drawString(author, authorWidth, 180);
    String drawDate = "時間：2024年8月28日";
    int drawDateWidth = canvasWidth-30-graphics.getFontMetrics().stringWidth(drawDate);
    graphics.drawString(drawDate, drawDateWidth, 200);

    // 7、添加水印圖片
    BufferedImage watermarkImg = ImageIO.read(new File("src/main/watermark.png"));
    graphics.drawImage(watermarkImg, 350, 120,120,120, null);

    // 8、寫到圖片
    ImageIO.write(backImg, "png", new File("src/main/draw-img.png"));
    backImg.flush();
    watermarkImg.flush();
    graphics.dispose();
  }
}