launcher : move call to ShowSplashScreen and BackgroundInitialization to PreStart()
It doesn't change behaviour of launcher in beremiz, but may have some impact on some customizations.
Some customizations need to squeeze some bitmap folder init in between app creation and ShowSplashScreen
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2016 - 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
#
# See COPYING file for copyrights details.
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from __future__ import absolute_import
from __future__ import print_function
import os
import sys
import getopt
import time
import wx
from wx.lib.agw.advancedsplash import AdvancedSplash
import util.paths as paths
class BeremizIDELauncher(object):
def __init__(self):
self.app = None
self.frame = None
self.updateinfo_url = None
self.extensions = []
self.app_dir = paths.AbsDir(__file__)
self.projectOpen = None
self.buildpath = None
self.splash = None
self.splashPath = self.Bpath("images", "splash.png")
def Bpath(self, *args):
return os.path.join(self.app_dir, *args)
def ShowSplashScreen(self):
bmp = wx.Image(self.splashPath).ConvertToBitmap()
self.splash = AdvancedSplash(None, bitmap=bmp)
# process all events
# even the events generated by splash themself during showing
if wx.Platform == '__WXMSW__':
self.splash.Show()
self.splash.ProcessEvent(wx.PaintEvent())
else:
for dummy in range(0, 30):
wx.Yield()
time.sleep(0.01)
def Usage(self):
print("Usage:")
print("%s [Options] [Projectpath] [Buildpath]" % sys.argv[0])
print("")
print("Supported options:")
print("-h --help Print this help")
print("-u --updatecheck URL Retrieve update information by checking URL")
print("-e --extend PathToExtension Extend IDE functionality by loading at start additional extensions")
print("")
print("")
def SetCmdOptions(self):
self.shortCmdOpts = "hu:e:"
self.longCmdOpts = ["help", "updatecheck=", "extend="]
def ProcessOption(self, o, a):
if o in ("-h", "--help"):
self.Usage()
sys.exit()
if o in ("-u", "--updatecheck"):
self.updateinfo_url = a
if o in ("-e", "--extend"):
self.extensions.append(a)
def ProcessCommandLineArgs(self):
self.SetCmdOptions()
try:
opts, args = getopt.getopt(sys.argv[1:], self.shortCmdOpts, self.longCmdOpts)
except getopt.GetoptError:
# print help information and exit:
self.Usage()
sys.exit(2)
for o, a in opts:
self.ProcessOption(o, a)
if len(args) > 2:
self.Usage()
sys.exit()
elif len(args) == 1:
self.projectOpen = args[0]
self.buildpath = None
elif len(args) == 2:
self.projectOpen = args[0]
self.buildpath = args[1]
def CreateApplication(self):
BMZ_DBG = os.path.exists("BEREMIZ_DEBUG")
if wx.VERSION >= (3, 0, 0):
self.app = wx.App(redirect=BMZ_DBG)
else:
self.app = wx.PySimpleApp(redirect=BMZ_DBG)
self.app.SetAppName('beremiz')
if wx.VERSION < (3, 0, 0):
wx.InitAllImageHandlers()
def BackgroundInitialization(self):
self.InitI18n()
self.CheckUpdates()
self.LoadExtensions()
self.ImportModules()
self.InstallExceptionHandler()
self.ShowUI()
def InitI18n(self):
from util.misc import InstallLocalRessources
InstallLocalRessources(self.app_dir)
def LoadExtensions(self):
for extfilename in self.extensions:
from util.TranslationCatalogs import AddCatalog
from util.BitmapLibrary import AddBitmapFolder
extension_folder = os.path.split(os.path.realpath(extfilename))[0]
sys.path.append(extension_folder)
AddCatalog(os.path.join(extension_folder, "locale"))
AddBitmapFolder(os.path.join(extension_folder, "images"))
execfile(extfilename, locals())
def CheckUpdates(self):
if self.updateinfo_url is not None:
self.updateinfo = _("Fetching %s") % self.updateinfo_url
def updateinfoproc():
try:
import urllib2
self.updateinfo = urllib2.urlopen(self.updateinfo_url, None).read()
except Exception:
self.updateinfo = _("update info unavailable.")
from threading import Thread
self.splash.SetText(text=self.updateinfo)
updateinfoThread = Thread(target=updateinfoproc)
updateinfoThread.start()
updateinfoThread.join(2)
self.splash.SetText(text=self.updateinfo)
def ImportModules(self):
global BeremizIDE
import BeremizIDE
def InstallExceptionHandler(self):
import version
import util.ExceptionHandler
util.ExceptionHandler.AddExceptHook(version.app_version)
def ShowUI(self):
import BeremizIDE
self.frame = BeremizIDE.Beremiz(None, self.projectOpen, self.buildpath)
if self.splash:
self.splash.Close()
self.frame.Show()
def PreStart(self):
self.ProcessCommandLineArgs()
self.CreateApplication()
self.ShowSplashScreen()
self.BackgroundInitialization()
def MainLoop(self):
self.app.MainLoop()
def Start(self):
self.PreStart()
self.MainLoop()
if __name__ == '__main__':
beremiz = BeremizIDELauncher()
beremiz.Start()