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#!/usr/bin/env python3
#
# Qtvcp widget
# Copyright (c) 2017 Chris Morley
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
###############################################################################
from PyQt5.QtWidgets import QWidget
import hal
from qtvcp.widgets.widget_baseclass import _HalWidgetBase
from PyQt5.QtCore import pyqtSignal, pyqtProperty
from qtvcp import logger
# Instantiate the libraries with global reference
# LOG is for running code logging
LOG = logger.getLogger(__name__)
# Force the log level for this module
# LOG.setLevel(logger.INFO) # One of DEBUG, INFO, WARNING, ERROR, CRITICAL
################################################################
class GeneralHALInput(QWidget, _HalWidgetBase):
hal_pin_changed = pyqtSignal([int], [float], [bool])
def __init__(self, parent=None):
super(GeneralHALInput, self).__init__(parent)
self.istate = False
self._pin_name = ''
self._bit_pin_type = True
self._s32_pin_type = False
self._float_pin_type = False
self._float_scale = 1.0
self._s32_scale = 1
def _hal_init(self):
if self._pin_name == '':
pname = self.HAL_NAME_
else:
pname = self._pin_name
if self._bit_pin_type:
ptype = hal.HAL_BIT
self.hal_pin = self.HAL_GCOMP_.newpin(self.HAL_NAME_, hal.HAL_BIT, hal.HAL_IN)
self.hal_pin.value_changed.connect(lambda data: self.pin_update(data))
elif self._float_pin_type:
self.hal_pin = self.HAL_GCOMP_.newpin(self.HAL_NAME_, hal.HAL_FLOAT, hal.HAL_IN)
self.hal_pin.value_changed.connect(lambda data: self.pin_update(data))
else:
self.hal_pin = self.HAL_GCOMP_.newpin(self.HAL_NAME_, hal.HAL_S32, hal.HAL_IN)
self.hal_pin.value_changed.connect(lambda data: self.pin_update(data))
def pin_update(self, *a):
self.hal_pin_changed.emit(self.hal_pin.get())
#########################################################################
# This is how designer can interact with our widget properties.
# designer will show the pyqtProperty properties in the editor
# it will use the get set and reset calls to do those actions
########################################################################
def _toggle_properties(self, picked):
data = ('bit', 's32', 'float')
for i in data:
if not i == picked:
self[i+'_pin_type'] = False
def set_pin_name(self, value):
self._pin_name = value
def get_pin_name(self):
return self._pin_name
def reset_pin_name(self):
self._pin_name = ''
def set_bit_pin_type(self, value):
self._bit_pin_type = value
if value:
self._toggle_properties('bit')
def get_bit_pin_type(self):
return self._bit_pin_type
def reset_bit_pin_type(self):
self._bit_pin_type = ''
def set_s32_pin_type(self, value):
self._s32_pin_type = value
if value:
self._toggle_properties('s32')
def get_s32_pin_type(self):
return self._s32_pin_type
def reset_s32_pin_type(self):
self._s32_pin_type = ''
def set_float_pin_type(self, value):
self._float_pin_type = value
if value:
self._toggle_properties('float')
def get_float_pin_type(self):
return self._float_pin_type
def reset_float_pin_type(self):
self._float_pin_type = ''
# designer will show these properties in this order:
pin_name = pyqtProperty(str, get_pin_name, set_pin_name, reset_pin_name)
bit_pin_type = pyqtProperty(bool, get_bit_pin_type, set_bit_pin_type, reset_bit_pin_type)
s32_pin_type = pyqtProperty(bool, get_s32_pin_type, set_s32_pin_type, reset_s32_pin_type)
float_pin_type = pyqtProperty(bool, get_float_pin_type, set_float_pin_type, reset_float_pin_type)
##############################
# required class boiler code #
##############################
def __getitem__(self, item):
return getattr(self, item)
def __setitem__(self, item, value):
return setattr(self, item, value)
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