def open_file_dialog(self):
# in case a file is open already, close it properly first
if self.machine:
ret = self.close_file()
if not ret:
# user canceled closing of current file; can't open new one
return
# open dialog for selecting a gcode file to be loaded
dialog = QFileDialog(self)
dialog.setFileMode(QFileDialog.ExistingFile)
filters = ["G-code (*.gcode)", "Any files (*)"]
dialog.setNameFilters(filters)
dialog.selectNameFilter(filters[0])
dialog.setViewMode(QFileDialog.Detail)
filename = None
if dialog.exec_():
filename = dialog.selectedFiles()
if filename:
self.run_in_background(self.load_data,
after=self.show_layer,
args=filename)
