class SpinnerDialComboWidget(QWidget):
value_changed = pyqtSignal()
# name: The string name that will be displayed on top of the widget
# default_value: The value that will be initially set as the widget's value
# min_val: The minimum value that will be initially set
# max_val: The maximum value that will be initially set
def __init__(self,
name="",
default_value=0,
min_val=0,
max_val=100,
parent=None):
QWidget.__init__(self, parent=parent)
# The minimum value that can be set
self.min_val = min_val
# The maximum value that can be set
self.max_val = max_val
# The widget's current value
self.value = default_value
self.title_label = QLabel(name)
# The widget's dial
self.dial = QDial(self)
self.dial.setSingleStep(1)
self.dial.setPageStep(1)
self.dial.setMinimum(min_val)
self.dial.setMaximum(max_val)
self.dial.setValue(default_value)
self.dial.valueChanged.connect(self.on_dial_changed)
# The widget's spin box
self.spinner = QSpinBox(self)
self.spinner.setMinimum(min_val)
self.spinner.setMaximum(max_val)
self.spinner.setValue(default_value)
self.spinner.valueChanged.connect(self.on_spinner_changed)
self.setup_gui()
# Sets up the positioning of the UI elements
def setup_gui(self):
vertical_layout = QVBoxLayout(self)
vertical_layout.addStretch(1)
vertical_layout.addWidget(self.title_label)
vertical_layout.addWidget(self.spinner)
vertical_layout.addWidget(self.dial)
# The callback for when the dial is changes
@pyqtSlot()
def on_dial_changed(self):
self.value = self.dial.value()
self.spinner.blockSignals(True)
self.spinner.setValue(self.dial.value())
self.spinner.blockSignals(False)
self.value_changed.emit()
# The callback for when the spin box is changed
@pyqtSlot()
def on_spinner_changed(self):
self.value = self.spinner.value()
self.dial.blockSignals(True)
self.dial.setValue(self.spinner.value())
self.dial.blockSignals(False)
self.value_changed.emit()
# Sets the minimum value
# new_min: The new minimum value to be set
def set_min(self, new_min):
if new_min > self.max_val:
return
self.min_val = new_min
self.dial.blockSignals(True)
self.spinner.blockSignals(True)
self.spinner.setMinimum(new_min)
self.dial.setMinimum(new_min)
self.dial.blockSignals(False)
self.spinner.blockSignals(False)
self.value_changed.emit()
# Sets the maximum value
# new_max: The new maximum value to be set
def set_max(self, new_max):
if new_max < self.min_val:
return
self.max_val = new_max
self.dial.blockSignals(True)
self.spinner.blockSignals(True)
self.spinner.setMaximum(new_max)
self.dial.setMaximum(new_max)
self.dial.blockSignals(False)
self.spinner.blockSignals(False)
self.value_changed.emit()
# Sets the widget value
# value: The value to be set
def set_value(self, value):
self.value = value
self.dial.blockSignals(True)
self.spinner.blockSignals(True)
self.dial.setValue(value)
self.spinner.setValue(value)
self.dial.blockSignals(False)
self.spinner.blockSignals(False)
self.value_changed.emit()
