如何在打印区域内添加两个图像？

如何解决如何在打印区域内添加两个图像？

我正在使用热敏打印机打印。我可以打印文本并且效果很好，但我想将 2 张图像附加到文本中，一个在文本的顶部，一个在文本的底部。 我正在尝试使用此代码，它可以完美地打印文本，但我尝试打印的唯一一个图像没有显示。 也许我应该将它添加到 g2d 变量中？ 如果这是问题所在，我怎么能不删除我的文本呢？

class ReceiptPrint implements Printable {

    SimpleDateFormat df = new SimpleDateFormat();
    String receiptDetailLine;
    public static final String pspace = "               ";//15-spaces

    public int print(Graphics graphics,PageFormat pageFormat,int pageIndex)
            throws PrinterException {

        df.applyPattern("dd/MM/yyyy HH:mm:ss");
        String strText = null;
        final String LF = "\n";// text string to output
        int linestart;           // start index of line in textarea
        int lineEnd;             // end index of line in textarea
        int lineNumber;
        int lineCount;
        final String SPACE = "          ";//10 spaces
        final String SPACES = "         ";//9
        final String uline = "________________________________________";
        final String dline = "----------------------------------------";
        String greetings = "GRAZIE PER L'ACQUISTO";
        receiptDetailLine = "asdasdasda";

        Graphics2D g2d = (Graphics2D) graphics;
        Font font = new Font("MONOSPACED",Font.BOLD,9);

        if (pageIndex < 0 || pageIndex >= 1) {
            return Printable.NO_SUCH_PAGE;
        }
        JTextArea textarea = new JTextArea(10,40);

        textarea.append(SPACES + "sadasdsad" + "\n");

        textarea.append(" " + SPACES + "sadasdsad" + "\n");

        textarea.append(SPACES + "sadasdsad" + "\n");

        textarea.append("" + SPACES + "sadasdsad" + "\n");

        textarea.append(SPACES + "sadasdsad" + "\n");

        textarea.append(uline + "\n");
        textarea.append("Order Ref:" + "   " + receiptDetailLine + "\n");
        textarea.append(dline + "\n");
        textarea.append(" Qty     Description" + SPACES + "  Price" + LF);
        textarea.append(dline + "\n");

        System.out.println(2);

        String printedLine = "       Service Charge Complimentary";
        textarea.append(printedLine + LF);

        textarea.append(LF + SPACES + "   Your Reciept\n" + SPACE + greetings + LF);
        textarea.append(df.format(new Date()) + LF);
        textarea.setEditable(false);

        g2d.translate(pageFormat.getimageableX(),pageFormat.getimageableY());

        g2d.setFont(font);
        lineNumber = 0;
        lineCount = textarea.getLineCount();
        strText = textarea.getText();
        

        //Provo a stampare un'immagine
        MediaTracker mt = new MediaTracker(textarea);

        String imagePath = "/mydir/TempQr1.bmp";
        //--- Load the image and wait for it to load
        Image image = Toolkit.getDefaultToolkit().getimage(imagePath);
        mt.addImage(image,0);


        while (lineCount != 0) {
            try {

                linestart = textarea.getLinestartOffset(lineNumber);
                lineEnd = textarea.getLineEndOffset(lineNumber);
                strText = textarea.getText(linestart,lineEnd - linestart);
            } catch (Exception exception) {
                System.out.println("Printing error:" + exception);                  // have to catch BadLocationException
            }

            g2d.drawString(strText,1,(lineNumber + 1) * 18);
            //g2d.drawIma
            //spacing    between lines
            lineNumber = lineNumber + 1;
            lineCount--;
        }
        return Printable.PAGE_EXISTS;
    }
}

关于我应该如何做的任何建议？

感谢您的帮助！

解决方法

感谢@camickr，我创建了一个 JPanel 并将所有组件添加到其中，然后我使用此代码打印了 JPanel，其中 comp 是我的 JPanel：

public void stampaDirettamente(Component comp,boolean fill) throws PrinterException {
    Paper paper = new Paper();
    double paperWidth = 3;//3.25
    double paperHeight = 6.69;//11.69
    double leftMargin = 0.12;
    double rightMargin = 0.10;
    double topMargin = 0;
    double bottomMargin = 0.01;

    paper.setSize(paperWidth * 200,paperHeight * 200);
    paper.setImageableArea(leftMargin * 200,topMargin * 200,(paperWidth - leftMargin - rightMargin) * 200,(paperHeight - topMargin - bottomMargin) * 200);


    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
    aset.add(OrientationRequested.PORTRAIT);


    PageFormat pf = new PageFormat();
    pf.setPaper(paper);
    pf.setOrientation(PageFormat.PORTRAIT);
    

    BufferedImage img = new BufferedImage(
                    (int) Math.round(pf.getWidth()),(int) Math.round(pf.getHeight()),BufferedImage.TYPE_INT_RGB);

    Graphics2D g2d = img.createGraphics();
    g2d.setColor(Color.WHITE);
    g2d.fill(new Rectangle(0,img.getWidth(),img.getHeight()));
    ComponentPrinter cp = new ComponentPrinter(comp,fill);
    try {
        cp.print(g2d,pf,0);
    } finally {
        g2d.dispose();
    }
    
    
    PrinterJob printerJob = PrinterJob.getPrinterJob();
    Printable printable = cp;

    pf = printerJob.validatePage(pf);
    //boolean don = printerJob.printDialog();    //Uncomment this to have a print dialog
    printerJob.setPrintable(printable,pf);    
    try {
        printerJob.print(aset);
    } catch (Exception e) {
        e.printStackTrace();
    }
}