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#!/usr/bin/env python3
#
# QTVcp Widget - MDI edit line 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.
###############################################################################
import os
import hashlib
from PyQt5.QtWidgets import QTextEdit
from PyQt5.QtCore import QFile, pyqtProperty
from qtvcp.widgets.widget_baseclass import _HalWidgetBase
from qtvcp.core import Status, Info
from qtvcp import logger
# Instiniate the libraries with global reference
# STATUS gives us status messages from linuxcnc
# AUX_PRGM holds helper program loader
# INI holds ini details
# ACTION gives commands to linuxcnc
# LOG is for running code logging
STATUS = Status()
INFO = Info()
LOG = logger.getLogger(__name__)
class MachineLog(QTextEdit, _HalWidgetBase):
def __init__(self, parent=None):
super(MachineLog, self).__init__(parent)
self._delay = 0
self._hash_code = None
self._machine_log = True
self._integrator_log = False
self.integratorPath = os.path.expanduser(INFO.QTVCP_LOG_HISTORY_PATH)
self.machineLogPath = os.path.expanduser(INFO.MACHINE_LOG_HISTORY_PATH)
def _hal_init(self):
if self._machine_log:
STATUS.connect('machine-log-changed',lambda w: self.loadLog())
elif self._integrator_log:
STATUS.connect('periodic', self._periodicCheck)
def _periodicCheck(self, w):
if self._delay < 9:
self._delay += 1
return
if STATUS.is_status_valid() == False:
return
self._delay = 0
m1 = self.md5sum(self.integratorPath)
if m1 and self._hash_code != m1:
self._hash_code = m1
self.loadIntegratorLog()
# create a hash code
def md5sum(self,filename):
try:
f = open(filename, "rb")
except:
return None
else:
return hashlib.md5(f.read()).hexdigest()
def loadLog(self):
file = QFile(self.machineLogPath)
file.open(QFile.ReadOnly)
logText = file.readAll()
file.close()
self.setPlainText(str(logText, encoding='utf8'))
# scroll down to show last entry
self.verticalScrollBar().setSliderPosition(self.verticalScrollBar().maximum())
def loadIntegratorLog(self):
file = QFile(self.integratorPath)
file.open(QFile.ReadOnly)
logText = file.readAll()
file.close()
self.setPlainText(str(logText, encoding='utf8'))
# scroll down to show last entry
self.verticalScrollBar().setSliderPosition(self.verticalScrollBar().maximum())
################## properties ###################
def _toggle_properties(self, picked):
data = ('machine_log', 'integrator_log')
for i in data:
if not i == picked:
self[i+'_option'] = False
def set_machine_log(self, value):
self._machine_log = value
if value:
self._toggle_properties('machine_log')
def get_machine_log(self):
return self._machine_log
def reset_machine_log(self):
self._machine_log = True
machine_log_option = pyqtProperty(bool, get_machine_log, set_machine_log, reset_machine_log)
def set_integrator_log(self, value):
self._integrator_log = value
if value:
self._toggle_properties('integrator_log')
def get_integrator_log(self):
return self._integrator_log
def reset_integrator_log(self):
self._integrator_log = False
integrator_log_option = pyqtProperty(bool, get_integrator_log, set_integrator_log, reset_integrator_log)
##############################
# required class boiler code #
##############################
def __getitem__(self, item):
return getattr(self, item)
def __setitem__(self, item, value):
return setattr(self, item, value)
# for testing without editor:
def main():
import sys
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv)
widget = MachineLog()
widget.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
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