问打印时，JPanel的内容仅显示在页面顶部

EN

if (!this.isAnyCharacterLoaded()) {
    return;
}

PrinterJob printerJob = PrinterJob.getPrinterJob();
printerJob.setJobName(this.language.translate("printCharacter"));
printerJob.setPrintable ((graphics, pageFormat, pageNum) -> {
    if (pageNum > 0){
        return Printable.NO_SUCH_PAGE;
    }

    Graphics2D graphics2D = (Graphics2D) graphics;
    graphics2D.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
    //CharacterTabbedPane pane = (CharacterTabbedPane) charactersTabPane.getSelectedComponent();
    //PrintPreviewPanel printPreview = pane.getPrintPreview();
    //printPreview.printContent(graphics2D);
    PrintBase page;

    switch (pageNum) {
        case 0:
        default:
            page = new General(this.getActiveCharacter(), false);
            break;
    }

    Dimension dimension = new Dimension((int) pageFormat.getWidth(), (int) pageFormat.getHeight());
    page.setSize(dimension);
    page.create();
    page.paint(graphics2D);

    return Printable.PAGE_EXISTS;
});

if (!printerJob.printDialog()) {
    return;
}

try {
    printerJob.print();
} catch (PrinterException ex) {
    // handle exception
}