db_import_wizard.py 文件源码

 复制代码def __init__(self, parent=None):
        super().__init__(parent)
        self.setFinalPage(True)
        self.wizard = self.parent()
        self.complete = False
        extraction_label = QtWidgets.QLabel('Extracting XML data from ecospold files:')
        self.extraction_progressbar = QtWidgets.QProgressBar()
        strategy_label = QtWidgets.QLabel('Applying brightway2 strategies:')
        self.strategy_progressbar = QtWidgets.QProgressBar()
        db_label = QtWidgets.QLabel('Writing datasets to SQLite database:')
        self.db_progressbar = QtWidgets.QProgressBar()
        finalizing_label = QtWidgets.QLabel('Finalizing:')
        self.finalizing_progressbar = QtWidgets.QProgressBar()
        self.finished_label = QtWidgets.QLabel('')

        layout = QtWidgets.QVBoxLayout()
        self.download_label = QtWidgets.QLabel('Downloading data from ecoinvent homepage:')
        self.download_label.setVisible(False)
        self.download_progressbar = QtWidgets.QProgressBar()
        self.download_progressbar.setMinimum(0)
        self.download_progressbar.setMaximum(0)
        self.download_progressbar.setVisible(False)
        self.unarchive_label = QtWidgets.QLabel('Decompressing the 7z archive:')
        self.unarchive_progressbar = QtWidgets.QProgressBar()
        self.unarchive_progressbar.setMinimum(0)
        self.unarchive_progressbar.setMaximum(0)
        layout.addWidget(self.download_label)
        layout.addWidget(self.download_progressbar)
        layout.addWidget(self.unarchive_label)
        layout.addWidget(self.unarchive_progressbar)

        layout.addWidget(extraction_label)
        layout.addWidget(self.extraction_progressbar)
        layout.addWidget(strategy_label)
        layout.addWidget(self.strategy_progressbar)
        layout.addWidget(db_label)
        layout.addWidget(self.db_progressbar)
        layout.addWidget(finalizing_label)
        layout.addWidget(self.finalizing_progressbar)
        layout.addStretch(1)
        layout.addWidget(self.finished_label)
        layout.addStretch(1)

        self.setLayout(layout)

        # progress signals
        import_signals.extraction_progress.connect(self.update_extraction_progress)
        import_signals.strategy_progress.connect(self.update_strategy_progress)
        import_signals.db_progress.connect(self.update_db_progress)
        import_signals.finalizing.connect(self.update_finalizing)
        import_signals.finished.connect(self.update_finished)
        import_signals.unarchive_finished.connect(self.update_unarchive)
        import_signals.download_complete.connect(self.update_download)