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wxVortex.py
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wxVortex.py
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#!wxVortex.py
# wxVortex.py
#
# This is a wxPython GUI designed to launch EPICS IOC and MEDM
# scripts on RHEL LDAP Detector Pool machines.
#
# Authors: Russell Woods, Matthew Moore
# Date: 5/20/2013
# 8/8/2013
# 04/23/2014 - Simplified, added fixes for wxCallAfter
# 12/09/2014 - changed MEDM startup
# 04/29/2015 - Added Quick Start Guide, removed old wxSaveRestore code
import wx
import commands
import os
import signal
import subprocess
import time
import threading
import DPOStools
import sys
sys.path.append("/local/config/")
import xrd_config as xrd_config
pv_Prefix = xrd_config.DP_PV_SECTOR + 'vortex'+ xrd_config.DP_PV_SUFFIX
# Declare constants in capitals and as global variables at the start of your code
# This makes it much easier to change them later, especially if they are used often.
# It also indicates they are values that won't change throughout the programme's execution.
WINDOW_WIDTH = 200
WINDOW_HEIGHT = 1000
class VortexFrame(wx.Frame):
"""Vortex Window"""
# Define Self Method
def __init__(self, position=(400,500), parent=None, ClosePrompt=False):
wx.Frame.__init__(self, parent, title = 'DP Vortex Startup', pos = position, size = (WINDOW_WIDTH, WINDOW_HEIGHT), style=wx.DEFAULT_FRAME_STYLE ^ wx.RESIZE_BORDER)
#Set PS checking wait time
self.checkCycle=0.01
# Make the panel
self.background = wx.Panel(self, -1, style=wx.SUNKEN_BORDER)
self.closeprompt=ClosePrompt # Add a 'OnClose' Message Prompt
self.Bind(wx.EVT_CLOSE, self.OnClose)
# Make a Menu Bar
self.menubar = wx.MenuBar()
self.helpDocs = wx.Menu() # Make a Menu
self.helpDocs.Append(101, '&Vortex', '') # Add entry
wx.EVT_MENU(self, 101, self.helpDocs_101_Event) # Bind to Event
self.menubar.Append(self.helpDocs, '&Help Documents') # Append to Menu Bar
self.SetMenuBar(self.menubar) # Set Menu Bar
#--------------------------------------------------------------------------------------
# Vortex
#--------------------------------------------------------------------------------------
self.title = wx.StaticText(self.background, label="Vortex")
self.title.SetFont(wx.Font(20, wx.SWISS, wx.NORMAL, wx.BOLD))
# PreAmp Frequency:
self.saturn_title = wx.StaticText(self.background, -1, 'SATURN BOX')
self.saturn_title.SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD))
self.saturn_entry = wx.ComboBox(self.background, choices=["20MHz", "40MHz"], size=[90,25])
self.saturn_entry.SetEditable(False)
self.saturn_entry.SetValue("20MHz")
# This Dictionary holds required information for each Process controlled by the GUI
self.processes={
'IOC':{ 'pid': -999,
'running': False,
'search': 'dxpApp',
'file': '/local/DPbin/Scripts/start_ioc',
},
'MEDM':{ 'pid': -999,
'running': False,
'search': 'medm -x -macro P='+pv_Prefix+':, D=dxp1:, M=mca1 dxpSaturn.adl',
'file': ['/local/DPbin/Scripts/start_medm_vortex', pv_Prefix],
},
'IDL MCA':{ 'pid': -999,
'running': False,
'search': "vm=/local/DPbin/MCA/mca.sav",
'file': '/local/DPbin/Scripts/start_idl_mca',
},
'SAVE-RESTORE MENU':
{ 'pid': -999,
'running': False,
'search': 'medm -x -macro P='+ pv_Prefix +':,CONFIG=setup, configMenu_small.adl',
'file': ['/local/DPbin/Scripts/start_medm_configMenu',pv_Prefix,]
},
'caQtDM':
{ 'pid': -999,
'running': False,
'search': 'caQtDM -macro P='+ pv_Prefix + ':, D=dxp1:, M=mca1 dxpSaturn.ui',
'file': ['/local/DPbin/Scripts/start_caQtDM_vortex',pv_Prefix,]
},
}
# Start and Stop Buttons:
self.ButtonOrder = [
"IOC",
"MEDM",
'IDL MCA',
'SAVE-RESTORE MENU',
'caQtDM',
]
self.Buttons = dict.fromkeys(self.ButtonOrder)
# Create Buttons and labels
for Row in self.ButtonOrder:
self.Buttons[Row] = dict.fromkeys(["Title", "Start Button", "Stop Button"])
self.Buttons[Row]["Title"] = wx.StaticText(self.background, label=Row + " \t")
self.Buttons[Row]["Title"].SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD))
self.Buttons[Row]["Start Button"] = wx.Button(self.background, label='Start', size=[60,25])
self.Buttons[Row]["Stop Button"] = wx.Button(self.background, label='Stop', size=[60,25])
# Bind buttons to functions
self.Buttons['IOC']['Start Button'].Bind(wx.EVT_BUTTON, lambda event: self.start_Event(event, 'IOC'))
self.Buttons['IOC']['Stop Button'].Bind(wx.EVT_BUTTON, lambda event: self.stop_Event(event, 'IOC'))
self.Buttons['MEDM']['Start Button'].Bind(wx.EVT_BUTTON, lambda event: self.start_Event(event, 'MEDM'))
self.Buttons['MEDM']['Stop Button'].Bind(wx.EVT_BUTTON, lambda event: self.stop_Event(event, 'MEDM'))
self.Buttons['IDL MCA']['Start Button'].Bind(wx.EVT_BUTTON, lambda event: self.start_Event(event, 'IDL MCA'))
self.Buttons['IDL MCA']['Stop Button'].Bind(wx.EVT_BUTTON, lambda event: self.stop_Event(event, 'IDL MCA'))
self.Buttons['SAVE-RESTORE MENU']['Start Button'].Bind(wx.EVT_BUTTON, lambda event: self.start_Event(event, 'SAVE-RESTORE MENU'))
self.Buttons['SAVE-RESTORE MENU']['Stop Button'].Bind(wx.EVT_BUTTON, lambda event: self.stop_Event(event, 'SAVE-RESTORE MENU'))
self.Buttons['caQtDM']['Start Button'].Bind(wx.EVT_BUTTON, lambda event: self.start_Event(event, 'caQtDM'))
self.Buttons['caQtDM']['Stop Button'].Bind(wx.EVT_BUTTON, lambda event: self.stop_Event(event, 'caQtDM'))
# Make Horizontal Box Sizers
self.horizontalBoxes = []
self.horizontalBoxes.append(wx.BoxSizer(wx.HORIZONTAL))
self.horizontalBoxes[-1].Add(self.saturn_title, proportion = 1, border = 5,flag=wx.ALIGN_CENTER)
self.horizontalBoxes[-1].Add(self.saturn_entry, proportion = 0, border = 5,flag=wx.ALIGN_CENTER)
for Rows in self.ButtonOrder:
self.horizontalBoxes.append(wx.BoxSizer(wx.HORIZONTAL))
self.horizontalBoxes[-1].Add(self.Buttons[Rows]['Title'], proportion = 1, border = 0,flag=wx.ALIGN_CENTER)
self.horizontalBoxes[-1].Add(self.Buttons[Rows]['Start Button'], proportion = 0, border = 0,flag=wx.ALIGN_CENTER)
self.horizontalBoxes[-1].Add(self.Buttons[Rows]['Stop Button'], proportion = 0, border = 0,flag=wx.ALIGN_CENTER)
# Make a vertical sizer
self.verticalBox = wx.BoxSizer(wx.VERTICAL)
self.verticalBox.Add(self.title, proportion = 0, border = 1, flag=wx.ALIGN_CENTER)
self.verticalBox.Add(wx.StaticLine(self.background, -1, style=wx.LI_HORIZONTAL), proportion=0, flag=wx.EXPAND)
self.verticalBox.Add(wx.StaticLine(self.background, -1, style=wx.LI_HORIZONTAL), proportion=0, flag=wx.EXPAND)
for Row in self.horizontalBoxes:
self.verticalBox.Add(Row, proportion = 0, flag = wx.EXPAND | wx.ALL, border = 5)
self.verticalBox.Add(wx.StaticLine(self.background, -1, style=wx.LI_HORIZONTAL), proportion=0, flag=wx.EXPAND)
# PS checking
self.progRunning = True
self.PSthread = threading.Thread(target=self.pscheck)
self.PSthread.start()
# Set the panel size
self.background.SetSizer(self.verticalBox)
self.background.Fit()
self.Fit()
self.Show()
#--------------------------------------------------------------------------------------
# Define Event Methods (button actions)
# NOTE: Executed scripts MUST have a shebang! definition in line #1
#--------------------------------------------------------------------------------------
def helpDocs_101_Event(self, event):
tempCommand = ['firefox', 'http://www.aps.anl.gov/Xray_Science_Division/Detectors/Detector_Pool/Detector_Information/Vortex_SDD_SII_Nano']
p_ioc = subprocess.Popen(tempCommand, shell=False, preexec_fn=os.setsid)
def pscheck(self):
'''Track the current state of processes - Runs in a separate thread'''
global DetectorThreadRunning
while(self.progRunning):
#print self.checkbox1.GetValue()
for item in self.processes:
#print 'item =' + str(item)
#print 'pscheck is running...'
try:
tempResult = subprocess.check_output([ 'pgrep', '-f', self.processes[item]['search'] ])
self.processes[item]['pid'] = int(tempResult)
if not(self.processes[item]['running']):
self.button_status(item, 'on')
self.processes[item]['running'] = True
except:
if(self.processes[item]['running']):
#print 'program ended, calling button_status...'
self.button_status(item, 'off')
#print '...button_status update finished
time.sleep(self.checkCycle)
def button_status(self, app, switch):
if switch == 'on':
#print 'setting button colour = green'
wx.CallAfter(self.Buttons[app]['Start Button'].SetBackgroundColour, wx.GREEN)
#print 'setting buttton label = Running'
wx.CallAfter(self.Buttons[app]['Start Button'].SetLabel, "Running")
elif switch == 'off':
if app in self.processes:
#print 'setting pid = -999'
self.processes[app]['pid'] = -999
#print 'setting running = False'
self.processes[app]['running'] = False
#print 'setting button colour = white'
wx.CallAfter(self.Buttons[app]['Start Button'].SetBackgroundColour, wx.WHITE)
#print 'setting button label = start'
wx.CallAfter(self.Buttons[app]['Start Button'].SetLabel, "Start")
def OnClose(self, event):
'''This method Prompts the User for confimation when closing the Window'''
if self.closeprompt:
dlg = wx.MessageDialog(self,"Do you really want to close this app?","Confirm Exit", wx.OK|wx.CANCEL|wx.ICON_QUESTION)
result = dlg.ShowModal()
dlg.Destroy()
else:
result = wx.ID_OK
if result == wx.ID_OK:
# Cleans up PSthread
self.progRunning = False
self.PSthread.join()
while (self.PSthread.isAlive()):
time.sleep(self.checkCycle)
self.Hide()
def start_Event(self, event, app):
'''Start an App'''
if not(self.processes[app]['running']):
print 'Starting ' + str(app) + '...'
# Start the subprocess
tempCommand = self.processes[app]['file']
if app=='IOC':
SaturnBoxChoice = self.saturn_entry.GetValue()
tempFile = [self.processes['IOC']['file'], 'vortex' + '-' + str(SaturnBoxChoice)]
subprocess.Popen(tempFile, preexec_fn=os.setsid)
else:
subprocess.Popen(tempCommand, preexec_fn=os.setsid)
# Grab the subprocess I.D.
self.processes[app]['pid'] = DPOStools.waitforprocess(self.processes[app]['search'])
self.processes[app]['running']=True
# Set the button state
self.button_status(app, 'on')
print 'process id ' + str(app) + ' = ' + str(self.processes[app]['pid'])
else:
print str(app)+' already running!'
def stop_Event(self, event, app):
'''Stop an App'''
if(self.processes[app]['running']):
print 'Stopping '+str(app)+'...'
os.kill(self.processes[app]['pid'], signal.SIGKILL)
self.button_status(app, 'off')
else:
print "No process to stop."