Javafx - 打印 DPI 大于 72 的节点

Question

我正在尝试打印一个带有非常基本内容的节点

private void print(Node node) {
    System.out.println("Creating a printer job...");
    PrinterJob job = PrinterJob.createPrinterJob();
    if (job != null && job.showPrintDialog(node.getScene().getWindow()) ) {
        System.out.println(job.jobStatusProperty().asString());
        PageLayout pageLayout = Printer.getDefaultPrinter().createPageLayout(Paper.A4, PageOrientation.PORTRAIT, Printer.MarginType.HARDWARE_MINIMUM);
        boolean printed = job.printPage(pageLayout, node);
        if (printed) {
            System.out.println("Printed.");
            job.endJob();
        } else {
            System.out.println("Printing failed.");
        }
    } else {
        System.out.println("Could not create a printer job.");
    }
}

问题是我被DPI分辨率设置为72。这是一种在其他 DPI 分辨率中更改它的方法(无需将尺寸乘以 72.0/wanted_dpi_resolution(？(我的屏幕也是96 DPI(我对能够使用至少为 96 DPI 的 DPI 值进行打印非常感兴趣。

谢谢，等待您的回复。

Answer 1

Meh简短的回答是这是不可能的。

希望这将帮助其他人解决与我相同的问题。请找到附上下一个代码。

public static void printReport(ArrayList<MyPane> nodeList) {
    System.out.println("Creating a printer job...");
    String printerName = CachedComponents.getPrinterName();
    Printer printer = null;
    for (Printer p : Printer.getAllPrinters()) {
        if (p.getName().equals(printerName)) {
            printer = p;
            break;
        }
    }
    PrinterJob job = PrinterJob.createPrinterJob(printer);
    if (job != null) {
        job.getJobSettings().setPrintQuality(PrintQuality.HIGH);
        PageLayout pageLayout = printer.createPageLayout(Paper.A4, PageOrientation.PORTRAIT,
                Printer.MarginType.HARDWARE_MINIMUM);
        boolean fail = false;
        for (int i=0; i<nodeList.size(); i++) {
            MyPane node = nodeList.get(i);
            double scaleX = pageLayout.getPrintableWidth() / node.getBoundsInParent().getWidth();
            node.getTransforms().add(new Scale(scaleX, scaleX));
            boolean printed = job.printPage(pageLayout, node);
            if (printed) {
                System.out.println("Printed.");
            } else {
                System.out.println("Printing failed.");
                fail = true;
            }
        }
        if (!fail) {
            job.endJob();
        }
    } else {
        System.out.println("Could not create a printer job.");
    }
}

签出空检查。

干杯！