通过FontMetrics获取单个字符在指定字体上的宽度和高代码,Java代码库,德仔网

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【Java】通过FontMetrics获取单个字符在指定字体上的宽度和高

作者:Dezai.CN / 发布于2011/12/1/ 873

<div> public class MyTest extends JPanel {
 public void paintComponent(Graphics g) {
 super.paintComponent(g);
 Graphics2D g2 = (Graphics2D) g;
 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 Font f = new Font("Serif",0, 100);
 g.setFont(f);
 FontMetrics fm = getFontMetrics(f);
 String s = "HelloWorld";
 int x = 5;
 int y = 5;
 
 for (int i = 0; i < s.length(); i++) {
 char c = s.charAt(i);
 int h = fm.getHeight();
 int w = fm.charWidth(c);
 System.out.printf("Letter = %c\t Width = %d\t Height = %d\n",c,w,h);
 g.drawRect(x, y, w, h);
 g.drawString(String.valueOf(c), x, y + h);
 x = x + w;
 }
 }
 public static void main(String[] args) {
 JFrame frame = new JFrame();
 frame.setTitle("Draw Char one by one");
 frame.addWindowListener(new WindowAdapter() {
 public void windowClosing(WindowEvent e) {
 System.exit(0);
 }
 });
 frame.setContentPane(new MyTest());
 frame.setSize(600, 400);
 frame.setVisible(true);
 }
 }

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　逐个绘制每个字符　

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