class AlgorithmProgressWidget(QWidget):
"""
Widget consisting of a progress bar and a button.
"""
def __init__(self, parent=None):
super(AlgorithmProgressWidget, self).__init__(parent)
self.progress_bar = None
self.details_button = QPushButton('Details')
self.details_button.clicked.connect(self.show_dialog)
self.layout = QHBoxLayout()
self.layout.addStretch()
self.layout.addWidget(self.details_button)
self.setLayout(self.layout)
self.presenter = AlgorithmProgressPresenter(self)
def show_progress_bar(self):
if self.progress_bar is None:
self.progress_bar = QProgressBar()
self.progress_bar.setAlignment(Qt.AlignHCenter)
self.layout.insertWidget(0, self.progress_bar)
self.layout.removeItem(self.layout.takeAt(1))
def hide_progress_bar(self):
if self.progress_bar is not None:
self.layout.insertStretch(0)
self.layout.removeWidget(self.progress_bar)
self.progress_bar.close()
self.progress_bar = None
def show_dialog(self):
dialog = AlgorithmMonitorDialog(self, self.presenter.model)
dialog.show()
def createScaleBar(self, barlen):
pb = QProgressBar(self)
pb.setAlignment(Qt.AlignCenter)
pb.setStyleSheet("QProgressBar {border: solid grey; border-radius: 0px; color: black; } \
QProgressBar::chunk {background-color: #00AAFF; border-radius:0px;}")
pb.setValue(100)
pb.setFixedSize(barlen, 6)
pb.setTextVisible(False)
return pb
def __on_reporter_created(reporter):
initial_geometry = self.geometry()
self.progress_bar_container_widget.setVisible(True)
self.progress_bar_divider_line.setVisible(True)
progress_bar = QProgressBar(self.progress_bar_container_widget)
progress_bar.setAlignment(Qt.AlignCenter)
reporter.progress_bar = progress_bar
self.__reporter_map[reporter] = progress_bar
self.progress_bar_container_layout.addWidget(progress_bar)
progress_bar.show()
current_geometry = self.geometry()
current_geometry.moveCenter(initial_geometry.center())
self.setGeometry(current_geometry)
class MemoryView(QWidget):
set_value = Signal(int, float, float)
"""
Initializes and updates the view of memory(progress) bar.
"""
def __init__(self, parent):
super(MemoryView, self).__init__(parent)
self.critical = CRITICAL_PERCENTAGE
self.memory_bar = QProgressBar(self)
self.memory_bar.setAlignment(Qt.AlignCenter)
self.set_value.connect(self._set_value)
def set_bar_color(self, current_value: int, new_value: int):
"""
Updates the memory(progress) bar style if needed
:param current_value: Used system memory in percentage from previous update
:param new_value: Latest used system memory in percentage
"""
if from_normal_to_critical(self.critical, current_value, new_value):
self.memory_bar.setStyleSheet(CRITICAL_STYLE)
elif from_critical_to_normal(self.critical, current_value, new_value):
self.memory_bar.setStyleSheet(NORMAL_STYLE)
else:
pass
def invoke_set_value(self, new_value: int, mem_used: float,
mem_avail: float):
self.set_value.emit(new_value, mem_used, mem_avail)
@Slot(int, float, float)
def _set_value(self, new_value, mem_used, mem_avail):
"""
Receives memory usage information passed by memory presenter
and updates the displayed content as well as the style if needed
:param new_value: Latest used system memory in percentage
:param mem_used: Used system memory in Gigabytes(GB)
:param mem_avail: Available system memory in GB
"""
# newValue is the latest mem_used_percent
current_value = self.memory_bar.value()
if current_value == new_value:
return
self.set_bar_color(current_value, new_value)
self.memory_bar.setValue(new_value)
display_str = f"{mem_used:3.1f}/{mem_avail:3.1f} GB ({new_value:d}%)"
self.memory_bar.setFormat(display_str)
def update(self, data):
"""
Update the gui elements.
:param data: Data in format of AlgorithmProgressModel.get_running_algorithm_data()
"""
self.tree.clear()
for alg_data in data:
name, id, properties = alg_data
item = QTreeWidgetItem([name])
self.tree.addTopLevelItem(item)
progress_bar = QProgressBar()
progress_bar.setAlignment(Qt.AlignHCenter)
self.presenter.add_progress_bar(id, progress_bar)
cancel_button = CancelButton(self.presenter, id)
self.tree.setItemWidget(item, 1, progress_bar)
self.tree.setItemWidget(item, 2, cancel_button)
for prop in properties:
item.addChild(QTreeWidgetItem(prop))
def update(self, data):
"""
Update the gui elements.
:param data: Data in format of AlgorithmProgressModel.get_running_algorithm_data()
"""
self.tree.clear()
for alg_data in data:
name, id, properties = alg_data
item = QTreeWidgetItem([name])
self.tree.addTopLevelItem(item)
progress_bar = QProgressBar()
progress_bar.setAlignment(Qt.AlignHCenter)
self.presenter.add_progress_bar(id, progress_bar)
cancel_button = CancelButton(self.presenter, id)
self.tree.setItemWidget(item, 1, progress_bar)
self.tree.setItemWidget(item, 2, cancel_button)
for prop in properties:
item.addChild(QTreeWidgetItem(prop))
