Java打印：确定正在打印的页面

Question

I have a print method below from a class:

public void print(EditorPanePrinter epp) {
    try {
        PrinterJob pj=PrinterJob.getPrinterJob();
        boolean ok = pj.printDialog();
        if(ok) {
            pj.setPageable(epp);
            pj.print();
        }
    } catch (PrinterException e1) {
        e1.printStackTrace();
    }

}

EditorPanePrinter is a JEditorPane wrapped with a JPanel for print previews. See here for details.

After clicking "OK" from the print dialog shown, the page is printed correctly from the printer.

For more than 1 pages, especially with many pages to print, I want to show a dialog on which pages are printed: ie "Printing page 1 of 100" when the 1st page is printing, "Printing page 2 of 100" when the 2nd page is printing, and so on.

I have searched everywhere and I found no solution. How to do this?

If you need more info, please let me know.

Answer 1

A Pageable is made of Printable s, when each Printable is called, it is passed the pageIndex that the system is trying to print, which can used, for example, to print the page number on the output...

See Printable for more details.

Depending on the framework you are printing from, you might want to execute this from within a SwingWorker and use the publish / process capabilities to change the active page number. See Worker Threads and SwingWorker for more details