def handle_fileExportExportToPng(self):
     (filename, mask) = QFileDialog.getSaveFileName(self,
                                        "Save as PNG",
                                        "./" + self.SWNView.sector.name+".png",
                                        "PNG files (*.png)")
     if filename != "" or filename is not None:
         SceneExporter.exportSceneToPng(self.SWNView.scene, filename,2.0)
 def exportToPng(self,filename):
     SceneExporter.exportSceneToPng(self, filename)