Exemple #1
0
 def start_preview(self):
     self.pd = QPrintPreviewDialog(self.parent())
     self.pd.paintRequested.connect(self.do_print)
     self.pd.exec_()
Exemple #2
0
 def start_print(self):
     self.pd = QPrintDialog(self.parent())
     self.pd.open(self._start_print)
Exemple #3
0
class Printing(QObject):

    def __init__(self, iterator, parent):
        QObject.__init__(self, parent)
        self.current_index = 0
        self.iterator = iterator
        self.view = QWebView(self.parent())
        self.mf = mf = self.view.page().mainFrame()
        for x in (Qt.Horizontal, Qt.Vertical):
            mf.setScrollBarPolicy(x, Qt.ScrollBarAlwaysOff)
        self.view.loadFinished.connect(self.load_finished)
        self.paged_js = compiled_coffeescript('ebooks.oeb.display.utils')
        self.paged_js += compiled_coffeescript('ebooks.oeb.display.paged')

    def load_finished(self, ok):
        self.loaded_ok = ok

    def start_print(self):
        self.pd = QPrintDialog(self.parent())
        self.pd.open(self._start_print)

    def _start_print(self):
        self.do_print(self.pd.printer())

    def start_preview(self):
        self.pd = QPrintPreviewDialog(self.parent())
        self.pd.paintRequested.connect(self.do_print)
        self.pd.exec_()

    def do_print(self, printer):
        painter = QPainter(printer)
        zoomx = printer.logicalDpiX()/self.view.logicalDpiX()
        zoomy = printer.logicalDpiY()/self.view.logicalDpiY()
        painter.scale(zoomx, zoomy)
        pr = printer.pageRect()
        self.view.page().setViewportSize(QSize(pr.width()/zoomx,
            pr.height()/zoomy))
        evaljs = self.mf.evaluateJavaScript
        loop = QEventLoop(self)
        pagenum = 0
        from_, to = printer.fromPage(), printer.toPage()
        first = True

        for path in self.iterator.spine:
            self.loaded_ok = None
            load_html(path, self.view, codec=getattr(path, 'encoding', 'utf-8'),
                    mime_type=getattr(path, 'mime_type', None))
            while self.loaded_ok is None:
                loop.processEvents(loop.ExcludeUserInputEvents)
            if not self.loaded_ok:
                return error_dialog(self.parent(), _('Failed to render'),
                        _('Failed to render document %s')%path, show=True)
            evaljs(self.paged_js)
            evaljs('''
                document.body.style.backgroundColor = "white";
                paged_display.set_geometry(1, 0, 0, 0);
                paged_display.layout();
                paged_display.fit_images();
            ''')

            while True:
                pagenum += 1
                if (pagenum >= from_ and (to == 0 or pagenum <= to)):
                    if not first:
                        printer.newPage()
                    first = False
                    self.mf.render(painter)
                nsl = evaljs('paged_display.next_screen_location()').toInt()
                if not nsl[1] or nsl[0] <= 0: break
                evaljs('window.scrollTo(%d, 0)'%nsl[0])

        painter.end()
Exemple #4
0
 def start_preview(self):
     self.pd = QPrintPreviewDialog(self.parent())
     self.pd.paintRequested.connect(self.do_print)
     self.pd.exec_()
Exemple #5
0
 def start_print(self):
     self.pd = QPrintDialog(self.parent())
     self.pd.open(self._start_print)
Exemple #6
0
class Printing(QObject):
    def __init__(self, iterator, parent):
        QObject.__init__(self, parent)
        self.current_index = 0
        self.iterator = iterator
        self.view = QWebView(self.parent())
        self.mf = mf = self.view.page().mainFrame()
        for x in (Qt.Horizontal, Qt.Vertical):
            mf.setScrollBarPolicy(x, Qt.ScrollBarAlwaysOff)
        self.view.loadFinished.connect(self.load_finished)
        self.paged_js = compiled_coffeescript('ebooks.oeb.display.utils')
        self.paged_js += compiled_coffeescript('ebooks.oeb.display.paged')

    def load_finished(self, ok):
        self.loaded_ok = ok

    def start_print(self):
        self.pd = QPrintDialog(self.parent())
        self.pd.open(self._start_print)

    def _start_print(self):
        self.do_print(self.pd.printer())

    def start_preview(self):
        self.pd = QPrintPreviewDialog(self.parent())
        self.pd.paintRequested.connect(self.do_print)
        self.pd.exec_()

    def do_print(self, printer):
        painter = QPainter(printer)
        zoomx = printer.logicalDpiX() / self.view.logicalDpiX()
        zoomy = printer.logicalDpiY() / self.view.logicalDpiY()
        painter.scale(zoomx, zoomy)
        pr = printer.pageRect()
        self.view.page().setViewportSize(
            QSize(pr.width() / zoomx,
                  pr.height() / zoomy))
        evaljs = self.mf.evaluateJavaScript
        loop = QEventLoop(self)
        first = True

        for path in self.iterator.spine:
            self.loaded_ok = None
            load_html(path,
                      self.view,
                      codec=getattr(path, 'encoding', 'utf-8'),
                      mime_type=getattr(path, 'mime_type', None))
            while self.loaded_ok is None:
                loop.processEvents(loop.ExcludeUserInputEvents)
            if not self.loaded_ok:
                return error_dialog(self.parent(),
                                    _('Failed to render'),
                                    _('Failed to render document %s') % path,
                                    show=True)
            evaljs(self.paged_js)
            evaljs('''
                document.body.style.backgroundColor = "white";
                paged_display.set_geometry(1, 0, 0, 0);
                paged_display.layout();
                paged_display.fit_images();
            ''')

            while True:
                if not first:
                    printer.newPage()
                first = False
                self.mf.render(painter)
                nsl = evaljs('paged_display.next_screen_location()').toInt()
                if not nsl[1] or nsl[0] <= 0: break
                evaljs('window.scrollTo(%d, 0)' % nsl[0])

        painter.end()