def testAddPixmap(self):
p = qt.QPrinter()
d = PrintPreviewDialog(printer=p)
d.addPixmap(
qt.QPixmap.fromImage(
qt.QImage(resource_filename("gui/icons/clipboard.png"))))
self.qapp.processEvents()
def testAddSvg(self):
p = qt.QPrinter()
d = PrintPreviewDialog(printer=p)
d.addSvgItem(
qt.QSvgRenderer(resource_filename("gui/icons/clipboard.svg"),
d.page))
self.qapp.processEvents()
def setup(self):
"""Open a print dialog to ensure the :attr:`printer` is set.
If the setting fails or is cancelled, :attr:`printer` is reset to
*None*.
"""
if self.printer is None:
self.printer = qt.QPrinter()
if self.printDialog is None:
self.printDialog = qt.QPrintDialog(self.printer, self)
if self.printDialog.exec_():
if self.printer.width() <= 0 or self.printer.height() <= 0:
self.message = qt.QMessageBox(self)
self.message.setIcon(qt.QMessageBox.Critical)
self.message.setText(
"Unknown library error \non printer initialization")
self.message.setWindowTitle("Library Error")
self.message.setModal(0)
self.printer = None
return
self.printer.setFullPage(True)
self._updatePrinter()
else:
# printer setup cancelled, check for a possible previous configuration
if self.page is None:
# not initialized
self.printer = None
def printer(self):
"""The QPrinter instance used by the actions.
This is shared accross all instances of PrintAct
"""
if self._printer is None:
PrintAction._printer = qt.QPrinter()
return self._printer
def getPrinter(self):
"""Return the QPrinter instance used for printing.
:rtype: QPrinter
"""
# TODO This is a hack to sync with silx plot PrintAction
# This needs to be centralized
if _PrintAction._printer is None:
_PrintAction._printer = qt.QPrinter()
return _PrintAction._printer
def testShow(self):
p = qt.QPrinter()
d = PrintPreviewDialog(printer=p)
d.show()
self.qapp.processEvents()