# Copyright 2016 Hardcoded Software (http://www.hardcoded.net) # # This software is licensed under the "GPLv3" License as described in the "LICENSE" file, # which should be included with this package. The terms are also available at # http://www.gnu.org/licenses/gpl-3.0.html from PyQt5.QtCore import Qt, QTimer from PyQt5.QtWidgets import QProgressDialog class ProgressWindow: def __init__(self, parent, model): self._window = None self.parent = parent self.model = model model.view = self # We don't have access to QProgressDialog's labels directly, so we se the model label's view # to self and we'll refresh them together. self.model.jobdesc_textfield.view = self self.model.progressdesc_textfield.view = self # --- Callbacks def refresh(self): # Labels if self._window is not None: self._window.setWindowTitle(self.model.jobdesc_textfield.text) self._window.setLabelText(self.model.progressdesc_textfield.text) def set_progress(self, last_progress): if self._window is not None: self._window.setValue(last_progress) def show(self): flags = Qt.CustomizeWindowHint | Qt.WindowTitleHint | Qt.WindowSystemMenuHint self._window = QProgressDialog('', "Cancel", 0, 100, self.parent, flags) self._window.setModal(True) self._window.setAutoReset(False) self._window.setAutoClose(False) self._timer = QTimer(self._window) self._timer.timeout.connect(self.model.pulse) self._window.show() self._window.canceled.connect(self.model.cancel) self._timer.start(500) def close(self): # it seems it is possible for close to be called without a corresponding # show, only perform a close if there is a window to close if self._window is not None: self._timer.stop() del self._timer # For some weird reason, canceled() signal is sent upon close, whether the user canceled # or not. If we don't want a false cancellation, we have to disconnect it. self._window.canceled.disconnect() self._window.close() self._window.setParent(None) self._window = None