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java - 如何在java jFrame中动态添加图片和文字?

转载 作者:行者123 更新时间:2023-11-30 12:07:18 25 4
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我有一个类似于 html5 标签的选取框,文本从右向左水平移动,完美无误。

public class texscroll extends JPanel {
private int x = 510, y = 25;
private String string = "Text in moving similary to the tags HTML5 Marquesina (<marquee>).";

public texscroll() {
Font font = new Font("Arial", Font.BOLD + Font.PLAIN, 15);
setFont(font);
setForeground(Color.BLACK);
setOpaque(false);
Timer timer = new Timer(14, new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
x -= 1;
if (x == -10 * string.length()) {
x = 510;
}
repaint();
}
});
timer.start();
}

@Override
public Dimension getPreferredSize() {
return new Dimension(720, 480);
}

@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g); //To change body of generated methods, choose Tools | Templates.
Graphics2D g2 = (Graphics2D) g;
g2.drawString(string, x, y);
}
}

但现在我希望能够添加或组合运动中的文本和图像。

private String string = "Text in moving similary to the tags HTML5 Marquesina (<marquee>).";

如何调用图像 (img/img.png) 以便它们可以在运动中可视化?

最佳答案

在绘制文本时简单地绘制图像:

class Texscroll extends JPanel {

private int x = 510, y = 25;
private final String string = "Text in moving similary to the tags HTML5 Marquesina (<marquee>).";
private final Image image;

public Texscroll() {
Font font = new Font("Arial", Font.BOLD + Font.PLAIN, 15);
setFont(font);
setForeground(Color.BLACK);
image = getImage();
Timer timer = new Timer(14, arg0 -> {
x -= 1;
if (x == -10 * string.length()) {
x = 510;
}
repaint();
});
timer.start();
setPreferredSize(new Dimension(720, 480));
}

@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.drawString(string, x, y);
g2.drawImage(image, x, y + 100, getFocusCycleRootAncestor());
}

//use any image
private BufferedImage getImage() {
int iconWidth =100;
BufferedImage img = new BufferedImage(iconWidth , iconWidth,
BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = img.createGraphics();
g2.setColor(Color.RED);
g2.fillOval(1, 1, iconWidth - 2, iconWidth - 2);
g2.dispose();
return img;
}
}

关于java - 如何在java jFrame中动态添加图片和文字?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55057110/

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