Question

我有一个小型Java程序，它在JLabels上使用ImageIcons来显示图片。我想带两个ImageIcons，将它们组合成一个ImageIcon，并将新的Image附加到JLabel，如下所示：

ImageIcon img1 = new ImageIcon("src/inc/img/pic1.png");
ImageIcon img2 = new ImageIcon("src/inc/img/pic2.png");
//combine the two into a new Image
// ? ImageIcon newImg = img1+img2;

我只是不确定如何去做，它只需要像我在油漆中打开两个图像文件，并在另一个的中间复制一个（pic2大约是pic1的一半大小）有什么提示吗？

Answer 1

我没试过这个，但你应该可以做这样的事情（并排绘制）

Image image1 = img1.getImage(); 
Image image2  = img2.getImage();
int w = image1.width + image2.width;
int h = Math.max(image1.height, image2.height);
Image image = new BufferedImage(w, h,  TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.drawImage(image1, 0, 0, null);
g2.drawImage(image2, image1.width, 0, null);
g2.dispose();

ImageIcon newImg = new ImageIcon(image);

Answer 2

得到了这个：

    @Test
    public void testIcon() throws IOException, InterruptedException {
        File file1 = new File("/etc/alternatives/start-here-32.png");
        File file2 = new File("/etc/alternatives/start-here-24.png");

        BufferedImage img1 = ImageIO.read(file1);
        BufferedImage img2 = ImageIO.read(file2);

        img1.getGraphics().drawImage(img2, 0, 0, img2.getWidth(null), img2.getHeight(null), 0, 0, img2.getWidth(null), img2.getHeight(null), null);
        showImage(img1);
        Thread.sleep(10000);
    }

这是showImage方法：

     public void showImage(final BufferedImage image) {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
        frame.setLayout(new BorderLayout());
        JPanel imagePanel = new JPanel() {
            @Override
            public void paint(java.awt.Graphics g) {
                g.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), 0, 0, image.getWidth(), image.getHeight(), null);

            };
        };

        frame.getContentPane().add(imagePanel, BorderLayout.CENTER);
        frame.setSize(new Dimension(image.getWidth() + 100, image.getHeight() + 100));
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

Answer 3

Compound Icon课程为您提供了以不同方式组合图标的灵活性。

Java结合了ImageIcons

3 个答案: