Python QPrintDialog.setOption方法代码示例

# 需要导入模块: from PyQt4.QtGui import QPrintDialog [as 别名]
# 或者: from PyQt4.QtGui.QPrintDialog import setOption [as 别名]
def print_(doc, filename=None, widget=None):
    """Prints the popplerqt4.Poppler.Document.
    
    The filename is used in the dialog and print job name.
    If the filename is not given, it defaults to a translation of "PDF Document".
    The widget is a widget to use as parent for the print dialog etc.
    
    """
    # Decide how we will print.
    # on Windows and Mac OS X a print command must be specified, otherwise
    # we'll use raster printing
    s = QSettings()
    s.beginGroup("helper_applications")
    cmd = s.value("printcommand", "", type(""))
    use_dialog = s.value("printcommand/dialog", False, bool)
    resolution = s.value("printcommand/dpi", 300, int)
    linux_lpr = False
    
    if os.name != 'nt' and not sys.platform.startswith('darwin'):
        # we're probably on Linux
        if not cmd:
            cmd = fileprinter.lprCommand()
            if cmd:
                linux_lpr = True
        elif cmd.split('/')[-1] in fileprinter.lpr_commands:
            linux_lpr = True

    print_file = filename
    title = os.path.basename(filename) if filename else _("PDF Document")
    printer = QPrinter()
    printer.setDocName(title)
    printer.setPrintRange(QPrinter.AllPages)
    
    if linux_lpr or use_dialog or not cmd:
        dlg = QPrintDialog(printer, widget)
        dlg.setMinMax(1, doc.numPages())
        dlg.setOption(QPrintDialog.PrintToFile, False)
        dlg.setWindowTitle(app.caption(_("Print {filename}").format(filename=title)))
        
        result = dlg.exec_()
        if widget:
            dlg.deleteLater() # because it has a parent
        if not result:
            return # cancelled
    
    if linux_lpr or '$ps' in cmd:
        # make a PostScript file with the desired paper size
        ps = QTemporaryFile()
        if ps.open() and qpopplerview.printer.psfile(doc, printer, ps):
            ps.close()
            print_file = ps.fileName()
    elif cmd:
        if printer.printRange() != QPrinter.AllPages:
            cmd = None # we can't cut out pages from a PDF file
        elif '$pdf' not in cmd:
            cmd += ' $pdf'
    
    command = []
    if linux_lpr:
        # let all converted pages print
        printer.setPrintRange(QPrinter.AllPages)
        command = fileprinter.printCommand(cmd, printer, ps.fileName())
    elif cmd and print_file:
        for arg in helpers.shell_split(cmd):
            if arg in ('$ps', '$pdf'):
                command.append(print_file)
            else:
                arg = arg.replace('$printer', printer.printerName())
                command.append(arg)
    if command:
        if subprocess.call(command):
            QMessageBox.warning(widget, _("Printing Error"),
                _("Could not send the document to the printer."))
        return
    else:
        # Fall back printing of rendered raster images.
        # It is unsure if the Poppler ArthurBackend ever will be ready for
        # good rendering directly to a painter, so we'll fall back to using
        # raster images.
        
        p = Printer()
        p.setDocument(doc)
        p.setPrinter(printer)
        p.setResolution(resolution)
        
        d = QProgressDialog()
        d.setModal(True)
        d.setMinimumDuration(0)
        d.setRange(0, len(p.pageList()) + 1)
        d.canceled.connect(p.abort)
        
        def progress(num, total, page):
            d.setValue(num)
            d.setLabelText(_("Printing page {page} ({num} of {total})...").format(
                page=page, num=num, total=total))
                
        def finished():
            p.deleteLater()
            d.deleteLater()
            d.hide()
#.........这里部分代码省略.........

# 需要导入模块: from PyQt4.QtGui import QPrintDialog [as 别名]
# 或者: from PyQt4.QtGui.QPrintDialog import setOption [as 别名]
def print_(doc, filename=None, widget=None):
    """Prints the popplerqt4.Poppler.Document.
    
    The filename is used in the dialog and print job name.
    If the filename is not given, it defaults to a translation of "PDF Document".
    The widget is a widget to use as parent for the print dialog etc.
    
    """
    cmd = fileprinter.lprCommand()
    if not cmd and QMessageBox.information(widget, _("Warning"), _(
        "No print command to print a PostScript file could be found.\n\n"
        "Therefore the document will be printed using raster images at {resolution} DPI. "
        "It is recommended to print using a dedicated PDF viewer.\n\n"
        "Do you want to continue?").format(resolution=300),
        QMessageBox.Yes | QMessageBox.No) != QMessageBox.Yes:
        return # cancelled
        
    filename = os.path.basename(filename) if filename else _("PDF Document")
    
    printer = QPrinter()
    printer.setDocName(filename)
    
    dlg = QPrintDialog(printer, widget)
    dlg.setMinMax(1, doc.numPages())
    dlg.setOption(QPrintDialog.PrintToFile, False)
    dlg.setWindowTitle(app.caption(_("Print {filename}").format(filename=filename)))
    
    result = dlg.exec_()
    if widget:
        dlg.deleteLater() # because it has a parent
    if not result:
        return # cancelled
    
    if cmd:
        # make a PostScript file with the desired paper size
        ps = QTemporaryFile()
        if ps.open() and qpopplerview.printer.psfile(doc, printer, ps):
            ps.close()
            # let all converted pages print
            printer.setPrintRange(QPrinter.AllPages)
            command = fileprinter.printCommand(cmd, printer, ps.fileName())
            if not subprocess.call(command):
                return # success!
        QMessageBox.warning(widget, _("Printing Error"),
            _("Could not send the document to the printer."))
    else:
        # Fall back printing of rendered raster images.
        # It is unsure if the Poppler ArthurBackend ever will be ready for
        # good rendering directly to a painter, so we'll fall back to using
        # 300DPI raster images.
        
        p = Printer()
        p.setDocument(doc)
        p.setPrinter(printer)
        p.setResolution(300)
        
        d = QProgressDialog()
        d.setModal(True)
        d.setMinimumDuration(0)
        d.setRange(0, len(p.pageList()) + 1)
        d.canceled.connect(p.abort)
        
        def progress(num, total, page):
            d.setValue(num)
            d.setLabelText(_("Printing page {page} ({num} of {total})...").format(
                page=page, num=num, total=total))
                
        def finished():
            p.deleteLater()
            d.deleteLater()
            d.hide()
            if not p.success and not p.aborted():
                QMessageBox.warning(widget, _("Printing Error"),
                    _("Could not send the document to the printer."))
            
        p.finished.connect(finished)
        p.printing.connect(progress)
        p.start()