Java 右对齐图像上的文本

Java 右对齐图像上的文本,java,graphics,2d,awt,fontmetrics,Java,Graphics,2d,Awt,Fontmetrics,如何使其右对齐 实际产出 所需输出 输出:- Graphics g = image.getGraphics(); FontMetrics fm = g.getFontMetrics(); int actual_width= fm.stringWidth("My Value"); drawString("My Value",total_width-actual_width,ypos); g.dispose(); ImageIO.write

如何使其右对齐

实际产出

所需输出

输出:-

   Graphics g = image.getGraphics(); 
     FontMetrics fm = g.getFontMetrics();
      int actual_width= fm.stringWidth("My Value");
     drawString("My Value",total_width-actual_width,ypos);
    g.dispose();
    ImageIO.write(image, "bmp", new File(c:\\output.bmp));
下面是一个小示例,演示了问题的解决方案:

System.out.println("total_width=" + image.getWidth() + " actual_width=" + actual_width);

    total_width=352 actual_width=46
    total_width=352 actual_width=38
    total_width=352 actual_width=68
    total_width=352 actual_width=73
    total_width=352 actual_width=36
import javax.swing.*;
导入java.awt.*;
导入java.awt.image.*;
公共类测试扩展了JFrame{
公共静态void main(字符串[]args){
新测试();
}
私人测试(){
final BufferedImage img=新的BufferedImage(300300,BufferedImage.TYPE_INT_ARGB);
Graphics g=img.createGraphics();
g、 设置颜色(颜色为黑色);
int total_width=img.getWidth();
int y=30;
int=100;
String[]words=新字符串[]{“Example”、“Of”、“Right”、“Alignment”};
for(int i=0;i
为了更快地获得更好的帮助,请发布一个。如果
image.getWidth()-(2*padding)=stringWidth,它将居中。为了更好。。好的,如上所述。右对齐将是组件的宽度减去文本的宽度,这难道没有意义吗?这是小学数学。除非你的宽度值是错误的,否则这些图像毫无意义。
System.out.println()
绘制调试时的每个宽度。@paranoid android如果屏幕截图中看到的代码在你的答案中显示为(代码格式的)文本,那就很方便了。
import javax.swing.*;
import java.awt.*;
import java.awt.image.*;

public class Test extends JFrame{

    public static void main(String [] args){
        new Test();
    }

    private Test(){
        final BufferedImage img = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
        Graphics g = img.createGraphics();
        g.setColor(Color.BLACK);

        int total_width = img.getWidth();
        int y = 30;
        int padding = 100;

        String [] words = new String[]{"Example", "Of", "Right", "Alignment"};
        for(int i = 0; i < words.length; i++){
            int actual_width = g.getFontMetrics().stringWidth(words[i]);
            int x = total_width - actual_width - padding;
            g.drawString(words[i], x, y += 30);
        }
        g.dispose();


        setContentPane(new JPanel(){
            public void paintComponent(Graphics g){
                super.paintComponent(g);
                g.drawImage(img, 0, 0, null);
            }
        });

        setSize(300,300);
        setResizable(false);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }
}