Source code for qtpyvcp.widgets.hal_widgets.hal_slider


from qtpy.QtWidgets import QSlider

from qtpyvcp import hal
from qtpyvcp.widgets import HALWidget


[docs]class HalSlider(QSlider, HALWidget): """HAL Slider Slider for setting `u32` or `float` HAL pin values. .. table:: Generated HAL Pins ========================= ===== ========= HAL Pin Name Type Direction ========================= ===== ========= qtpyvcp.slider.enable bit in qtpyvcp.slider.out-i u32 out qtpyvcp.slider.out-f float out ========================= ===== ========= """ def __init__(self, parent=None): super(HalSlider, self).__init__(parent) self._enable_pin = None self._s32_value_pin = None self._float_value_pin = None self._signed_int = True self.valueChanged.connect(self.onValueChanged) def onValueChanged(self, val): if self._s32_value_pin is not None: self._s32_value_pin.value = val self._float_value_pin.value = val / 100.0 def initialize(self): comp = hal.COMPONENTS['qtpyvcp'] obj_name = str(self.objectName()).replace('_', '-') # add slider.enable HAL pin self._enable_pin = comp.addPin(obj_name + ".enable", "bit", "in") self._enable_pin.value = self.isEnabled() self._enable_pin.valueChanged.connect(self.setEnabled) # add slider.percent HAL pin self._s32_value_pin = comp.addPin(obj_name + ".out-i", "u32", "out") self._s32_value_pin.value = self.value() # add slider.scale HAL pin self._float_value_pin = comp.addPin(obj_name + ".out-f", "float", "out") self._float_value_pin.value = self.value() / 100.0