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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 pyqtSlot, 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 GeneralHALOutput(QWidget, _HalWidgetBase):
def __init__(self, parent=None):
super(GeneralHALOutput, self).__init__(parent)
self.istate = False
self._initial_float = 1.0
self._pin_name = ''
self._bit_pin_type = True
self._s32_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(pname, ptype, hal.HAL_OUT)
self.hal_pin_2 = self.HAL_GCOMP_.newpin(pname + "-not", ptype, hal.HAL_OUT)
if self.istate:
self._pin_bit_update(self._initial_float)
else:
ptype = hal.HAL_S32
ptype2 = hal.HAL_FLOAT
self.hal_pin = self.HAL_GCOMP_.newpin(pname + '-s32', ptype, hal.HAL_OUT)
self.hal_pin_2 = self.HAL_GCOMP_.newpin(pname + "-float", ptype2, hal.HAL_OUT)
if self.istate:
self._pin_value_update(self._initial_float)
def _pin_bit_update(self, state):
self.hal_pin.set(bool(state))
self.hal_pin_2.set(not bool(state))
def _pin_value_update(self, state):
self.hal_pin.set(state * self._s32_scale)
self.hal_pin_2.set(state * self._float_scale)
#########################################################################
# 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
@pyqtSlot(bool)
@pyqtSlot(int)
def pin_bit_update(self, value):
self._pin_bit_update(value)
@pyqtSlot(int)
@pyqtSlot(float)
def pin_value_update(self, value):
self._pin_value_update(value)
@pyqtSlot()
def set_pin_true(self):
self._pin_bit_update(1)
@pyqtSlot()
def set_pin_false(self):
self._pin_bit_update(0)
def set_istate(self, value):
self.istate = value
def get_istate(self):
return self.istate
def reset_istate(self):
self.istate = 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 = True
def set_s32_float_pin_type(self, value):
self._s32_float_pin_type = value
if value:
self._toggle_properties('s32_float')
def get_s32_float_pin_type(self):
return self._s32_float_pin_type
def set_float_scale(self, data):
self._float_scale = data
def get_float_scale(self):
return self._float_scale
def reset_float_scale(self):
self._float_scale = 1.0
def set_initial_float(self, data):
self._initial_float = data
def get_initial_float(self):
return self._initial_float
def reset_initial_float(self):
self._initial_float = 1.0
def set_s32_scale(self, data):
self._s32_scale = data
def get_s32_scale(self):
return self._s32_scale
def reset_s32_scale(self):
self._s32_scale = 1
# designer will show these properties in this order:
initial_state = pyqtProperty(bool, get_istate, set_istate, reset_istate)
initial_float = pyqtProperty(float, get_initial_float, set_initial_float, reset_initial_float)
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_float_pin_type = pyqtProperty(bool, get_s32_float_pin_type, set_s32_float_pin_type)
float_scale = pyqtProperty(float, get_float_scale, set_float_scale, reset_float_scale)
s32_scale = pyqtProperty(int, get_s32_scale, set_s32_scale, reset_s32_scale)
##############################
# 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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