使用java中的某些文本打印图像

I need to print on a printer an image and some data, in java (Swing) but all in vain. I am just able to do up with the data but not with the image. I have a abc.png file and 6 jTextBoxes, from which the value has to be printed on the printer. I am using the FileWriter and PrinterJob classes to implement the job. The data and the image can be printed separately but not together. Can somebody suggest me something.

我需要在打印机上打印一个图像和一些数据，在java（Swing）中，但都是徒劳的。我只能处理数据，但不能处理图像。我有一个abc.png文件和6个jTextBox，从中必须在打印机上打印该值。我正在使用FileWriter和PrinterJob类来实现该作业。数据和图像可以单独打印，但不能一起打印。有人可以给我一些建议。

Thanks.

谢谢。

Code for printing image:

打印图像代码：

try {
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(new Copies(1));

PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF,     pras);

if (pss.length == 0)
throw new RuntimeException("No printer services available.");

PrintService ps = pss[0];
System.out.println("Printing to " + ps);

DocPrintJob job = ps.createPrintJob();

FileInputStream fin = new FileInputStream("C://a.gif");


Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.GIF, null);

//Doc doc1=new SimpleDoc();



job.print(doc, pras);

//fin.close();
} catch (IOException ie) {
ie.printStackTrace();
} catch (PrintException pe) {
pe.printStackTrace();
}

Code for printing text:

打印文字代码：

Just pass the location of the file on the hard disk, in FileInputStream.

只需在FileInputStream中传递硬盘上文件的位置即可。

1 个解决方案

#1

One solution could be to create a second image that contains your original image and the text.

一种解决方案是创建包含原始图像和文本的第二个图像。

Something like this may work? (un-tested):

这样的东西可能有用吗？（未测试）：

public Image addTextToImage(BufferedImage i, String[] text) {

    final int VERTICLE_PADDING_PIXELS = 5;
    final int LEFT_MARGIN_PIXELS = 5;

    FontMetrics fm = i.createGraphics().getFontMetrics();

    int width = i.getWidth();
    int height = i.getHeight()
            + (text.length * (fm.getHeight() + VERTICLE_PADDING_PIXELS));

    for (String s : text) {
        width = Math.max(width, fm.stringWidth(s) + LEFT_MARGIN_PIXELS);
    }

    BufferedImage result = new BufferedImage(i.getHeight(), width, height);

    Graphics2D g = result.createGraphics();

    g.drawImage(i, 0, 0, null);

    for (int x = 0; x < text.length; x++) {
        g.drawString(text[x], LEFT_MARGIN_PIXELS, i.getHeight() + (x + 1) *VERTICLE_PADDING_PIXELS + x*fm.getHeight());
    }

    return result;
}

#1