beremiz

make clipboard open minimal time as wxPython documentation recommends

2018-05-25, Andrey Skvortsov
5ce6d08ff2c7
file isExecutable
make clipboard open minimal time as wxPython documentation recommends

https://wxpython.org/Phoenix/docs/html/wx.Clipboard.html#wx.Clipboard.GetData

"Call wx.Clipboard.Open to get ownership of the clipboard. If this
operation returns True, you now own the clipboard. Call
wx.Clipboard.SetData to put data on the clipboard, or
wx.Clipboard.GetData to retrieve data from the clipboard. Call
wx.Clipboard.Close to close the clipboard and relinquish ownership.
You should keep the clipboard open only momentarily."

Maybe it makes situation with pretty annoying error 'clipboard already
open' a little bit better.

traceback:
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/BeremizIDE.py", line 955, in OnSaveProjectMenu
self.RefreshAfterSave()
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/BeremizIDE.py", line 946, in RefreshAfterSave
self._Refresh(TITLE, FILEMENU, EDITMENU, PAGETITLES)
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/IDEFrame.py", line 926, in _Refresh
self.RefreshFunctions[element]()
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/BeremizIDE.py", line 766, in RefreshEditMenu
IDEFrame.RefreshEditMenu(self)
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/IDEFrame.py", line 1185, in RefreshEditMenu
if self.GetCopyBuffer() is not None:
File "/home/developer/WorkData/PLC/beremiz/avangard-beremiz-ide/src/../../beremiz/IDEFrame.py", line 956, in GetCopyBuffer
if wx.TheClipboard.Open():
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_misc.py", line 5793, in Open
return _misc_.Clipboard_Open(*args, **kwargs)
: C++ assertion "!m_open" failed at ../src/gtk/clipbrd.cpp(598) in Open(): clipboard already open
#!/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 wx
from wx.lib.agw.advancedsplash import AdvancedSplash, AS_NOTIMEOUT, AS_CENTER_ON_SCREEN
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")
self.modules = ["BeremizIDE"]
self.debug = os.path.exists("BEREMIZ_DEBUG")
self.handle_exception = None
def Bpath(self, *args):
return os.path.join(self.app_dir, *args)
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):
BeremizAppType = wx.App if wx.VERSION >= (3, 0, 0) else wx.PySimpleApp
class BeremizApp(BeremizAppType):
def OnInit(_self): # pylint: disable=no-self-argument
self.ShowSplashScreen()
return True
self.app = BeremizApp(redirect=self.debug)
self.app.SetAppName('beremiz')
if wx.VERSION < (3, 0, 0):
wx.InitAllImageHandlers()
def ShowSplashScreen(self):
class Splash(AdvancedSplash):
Painted = False
def OnPaint(_self, event): # pylint: disable=no-self-argument
AdvancedSplash.OnPaint(_self, event)
if not _self.Painted: # trigger app start only once
_self.Painted = True
wx.CallAfter(self.AppStart)
bmp = wx.Image(self.splashPath).ConvertToBitmap()
self.splash = Splash(None,
bitmap=bmp,
agwStyle=AS_NOTIMEOUT | AS_CENTER_ON_SCREEN)
def BackgroundInitialization(self):
self.InitI18n()
self.CheckUpdates()
self.LoadExtensions()
self.ImportModules()
def InitI18n(self):
from util.misc import InstallLocalRessources
InstallLocalRessources(self.app_dir)
def globals(self):
"""
allows customizations to specify what globals
are passed to extensions
"""
return globals()
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, self.globals())
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):
for modname in self.modules:
mod = __import__(modname)
setattr(self, modname, mod)
def InstallExceptionHandler(self):
import version
import util.ExceptionHandler
self.handle_exception = util.ExceptionHandler.AddExceptHook(version.app_version)
def CreateUI(self):
self.frame = self.BeremizIDE.Beremiz(None, self.projectOpen, self.buildpath)
def CloseSplash(self):
if self.splash:
self.splash.Close()
def ShowUI(self):
self.frame.Show()
def PreStart(self):
self.ProcessCommandLineArgs()
self.CreateApplication()
def AppStart(self):
try:
self.BackgroundInitialization()
self.CreateUI()
self.CloseSplash()
self.ShowUI()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
if self.handle_exception is not None:
self.handle_exception(*sys.exc_info(), exit=True)
else:
raise
def MainLoop(self):
self.app.MainLoop()
def Start(self):
self.PreStart()
self.InstallExceptionHandler()
self.MainLoop()
if __name__ == '__main__':
beremiz = BeremizIDELauncher()
beremiz.Start()