from qtpy.QtWidgets import QSpinBox
from qtpy.QtCore import QEvent
from qtpyvcp import hal
from qtpyvcp.widgets import HALWidget
[docs]class HalQSpinBox(QSpinBox, HALWidget):
"""HAL SpinBox
SpinBox for displaying and setting `u32` and `s32` HAL pin values.
.. table:: Generated HAL Pins
========================= ========= =========
HAL Pin Name Type Direction
========================= ========= =========
qtpyvcp.spinbox.enable s32 | u32 in
qtpyvcp.spinbox.in s32 | u32 in
qtpyvcp.spinbox.out s32 | u32 out
========================= ========= =========
Note:
If the ``minimum`` value property is set to 0 or greater a u32 HAL pin will
be created, if the ``minumum`` value is less than 0 then a s32 HAL pin will
be created.
"""
def __init__(self, parent=None):
super(HalQSpinBox, self).__init__(parent)
self._value_pin = None
self._enabled_pin = None
self._signed_int = True
self.valueChanged.connect(self.onCheckedStateChanged)
def changeEvent(self, event):
super(HalQSpinBox, self).changeEvent(event)
if event == QEvent.EnabledChange and self._enabled_pin is not None:
self._enabled_pin.value = self.isEnabled()
def onCheckedStateChanged(self, checked):
if self._value_pin is not None:
self._value_pin.value = checked
[docs] def initialize(self):
comp = hal.getComponent()
obj_name = self.getPinBaseName()
if self.minimum() < 0:
pin_typ = 's32'
else:
pin_typ = 'u32'
# add spinbox.enable HAL pin
self._enabled_pin = comp.addPin(obj_name + ".enable", "bit", "in")
self._enabled_pin.value = self.isEnabled()
self._enabled_pin.valueChanged.connect(self.setEnabled)
# add spinbox.out HAL pin
self._value_pin = comp.addPin(obj_name + ".out", pin_typ, "out")
self._value_pin.value = self.value()
# add spinbox.in HAL pin
self._set_value_pin = comp.addPin(obj_name + ".in", pin_typ, "in")
self._set_value_pin.valueChanged.connect(self.setValue)