如何仅打印文本？ [英] How do I print only text?

问题描述

我正在尝试将一些文本发送到打印机。我只需要打印的文本，包裹在页边距并在必要时流向另一页。

I am trying to send some text to a printer. I need just the text printed, wrapped at the page margin and flowing to another page if necessary.

以下是我现在正在做的最小例子：

Here is a minimal example of what I am doing now:

@FXML
private void print() {
    TextArea printArea = new TextArea(textArea.getText());
    printArea.setWrapText(true);
    printArea.getChildrenUnmodifiable().forEach(node -> node.setStyle("-fx-background-color: transparent"));
    printArea.setStyle("-fx-background-color: transparent");

    PrinterJob printerJob = PrinterJob.createPrinterJob();

    if (printerJob != null && printerJob.showPrintDialog(textArea.getScene().getWindow())) {
        if (printerJob.printPage(printArea)) {
            printerJob.endJob();
            // done printing
        } else {
            // failed to print
        }
    } else {
        // failed to get printer job or failed to show print dialog
    }
}

最终打印的是灰色背景这似乎是控件本身，以及滚动条。我接近这个错误的方式了吗？我觉得我通过调整和打印控件而不是仅仅发送要打印的文本来对抗API。

What ends up printing is a gray background that seems to be the control itself, along with the scrollbar. Am I approaching this the wrong way? I feel like I'm fighting against the API by tweaking and printing a control instead of just sending the text to be printed.

下面的示例图片来自我的单元格手机相机，所以白纸看起来有点浅灰色，但你仍然可以看到控件和滚动条的灰色背景。

The example image below was taken from my cell phone camera, so the white paper ends up looking a bit light-gray, but you can still see the gray background from the control and the scrollbar.

推荐答案

而不是TextArea，打印 TextFlow ：

Instead of a TextArea, print a TextFlow:

private void print() {
    TextFlow printArea = new TextFlow(new Text(textArea.getText()));

    PrinterJob printerJob = PrinterJob.createPrinterJob();

    if (printerJob != null && printerJob.showPrintDialog(textArea.getScene().getWindow())) {
        PageLayout pageLayout = printerJob.getJobSettings().getPageLayout();
        printArea.setMaxWidth(pageLayout.getPrintableWidth());

        if (printerJob.printPage(printArea)) {
            printerJob.endJob();
            // done printing
        } else {
            System.out.println("Failed to print");
        }
    } else {
        System.out.println("Canceled");
    }
}

请注意，TextFlow的maxWidth需要使用打印对话框显示后，PrinterJob的页面布局。

Notice that the TextFlow's maxWidth needs to be set using the PrinterJob's page layout, after the print dialog has been shown.

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