beremiz

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) 2007: Edouard TISSERANT and Laurent BESSARD
# Copyright (C) 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
import socket
import wx
import wx.lib.mixins.listctrl as listmix
from zeroconf import ServiceBrowser, Zeroconf
service_type = '_PYRO._tcp.local.'
class AutoWidthListCtrl(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):
def __init__(self, parent, id, name, pos=wx.DefaultPosition,
size=wx.DefaultSize, style=0):
wx.ListCtrl.__init__(self, parent, id, pos, size, style, name=name)
listmix.ListCtrlAutoWidthMixin.__init__(self)
[
ID_DISCOVERYDIALOG, ID_DISCOVERYDIALOGSTATICTEXT1,
ID_DISCOVERYDIALOGSERVICESLIST, ID_DISCOVERYDIALOGREFRESHBUTTON,
ID_DISCOVERYDIALOGLOCALBUTTON, ID_DISCOVERYDIALOGIPBUTTON,
] = [wx.NewId() for _init_ctrls in range(6)]
class DiscoveryDialog(wx.Dialog, listmix.ColumnSorterMixin):
def _init_coll_MainSizer_Items(self, parent):
parent.AddWindow(self.staticText1, 0, border=20, flag=wx.TOP | wx.LEFT | wx.RIGHT | wx.GROW)
parent.AddWindow(self.ServicesList, 0, border=20, flag=wx.LEFT | wx.RIGHT | wx.GROW)
parent.AddSizer(self.ButtonGridSizer, 0, border=20, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.GROW)
def _init_coll_MainSizer_Growables(self, parent):
parent.AddGrowableCol(0)
parent.AddGrowableRow(1)
def _init_coll_ButtonGridSizer_Items(self, parent):
parent.AddWindow(self.RefreshButton, 0, border=0, flag=0)
parent.AddWindow(self.LocalButton, 0, border=0, flag=0)
parent.AddWindow(self.IpButton, 0, border=0, flag=0)
parent.AddSizer(self.ButtonSizer, 0, border=0, flag=0)
def _init_coll_ButtonGridSizer_Growables(self, parent):
parent.AddGrowableCol(0)
parent.AddGrowableCol(1)
parent.AddGrowableRow(0)
def _init_sizers(self):
self.MainSizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)
self.ButtonGridSizer = wx.FlexGridSizer(cols=4, hgap=5, rows=1, vgap=0)
self._init_coll_MainSizer_Items(self.MainSizer)
self._init_coll_MainSizer_Growables(self.MainSizer)
self._init_coll_ButtonGridSizer_Items(self.ButtonGridSizer)
self._init_coll_ButtonGridSizer_Growables(self.ButtonGridSizer)
self.SetSizer(self.MainSizer)
def _init_list_ctrl(self):
# Set up list control
self.ServicesList = AutoWidthListCtrl(
id=ID_DISCOVERYDIALOGSERVICESLIST,
name='ServicesList', parent=self, pos=wx.Point(0, 0), size=wx.Size(0, 0),
style=wx.LC_REPORT | wx.LC_EDIT_LABELS | wx.LC_SORT_ASCENDING | wx.LC_SINGLE_SEL)
self.ServicesList.InsertColumn(0, _('NAME'))
self.ServicesList.InsertColumn(1, _('TYPE'))
self.ServicesList.InsertColumn(2, _('IP'))
self.ServicesList.InsertColumn(3, _('PORT'))
self.ServicesList.SetColumnWidth(0, 150)
self.ServicesList.SetColumnWidth(1, 150)
self.ServicesList.SetColumnWidth(2, 150)
self.ServicesList.SetColumnWidth(3, 150)
self.ServicesList.SetInitialSize(wx.Size(-1, 300))
self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnItemSelected, id=ID_DISCOVERYDIALOGSERVICESLIST)
self.Bind(wx.EVT_LIST_ITEM_ACTIVATED, self.OnItemActivated, id=ID_DISCOVERYDIALOGSERVICESLIST)
def _init_ctrls(self, prnt):
self.staticText1 = wx.StaticText(
id=ID_DISCOVERYDIALOGSTATICTEXT1,
label=_('Services available:'), name='staticText1', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
self.RefreshButton = wx.Button(
id=ID_DISCOVERYDIALOGREFRESHBUTTON,
label=_('Refresh'), name='RefreshButton', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
self.Bind(wx.EVT_BUTTON, self.OnRefreshButton, id=ID_DISCOVERYDIALOGREFRESHBUTTON)
self.LocalButton = wx.Button(
id=ID_DISCOVERYDIALOGLOCALBUTTON,
label=_('Local'), name='LocalButton', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
self.Bind(wx.EVT_BUTTON, self.OnLocalButton, id=ID_DISCOVERYDIALOGLOCALBUTTON)
self.IpButton = wx.Button(
id=ID_DISCOVERYDIALOGIPBUTTON,
label=_('Add IP'), name='IpButton', parent=self,
pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
self.Bind(wx.EVT_BUTTON, self.OnIpButton, id=ID_DISCOVERYDIALOGIPBUTTON)
self.ButtonSizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTER)
self._init_sizers()
self.Fit()
def __init__(self, parent):
wx.Dialog.__init__(
self, id=ID_DISCOVERYDIALOG,
name='DiscoveryDialog', parent=parent,
style=wx.DEFAULT_DIALOG_STYLE,
title=_('Service Discovery'))
self._init_list_ctrl()
listmix.ColumnSorterMixin.__init__(self, 4)
self._init_ctrls(parent)
self.itemDataMap = {}
self.nextItemId = 0
self.URI = None
self.Browser = None
self.ZeroConfInstance = Zeroconf()
self.RefreshList()
self.LatestSelection = None
def __del__(self):
if self.Browser is not None:
self.Browser.cancel()
self.ZeroConfInstance.close()
def RefreshList(self):
if self.Browser is not None:
self.Browser.cancel()
self.Browser = ServiceBrowser(self.ZeroConfInstance, service_type, self)
def OnRefreshButton(self, event):
self.ServicesList.DeleteAllItems()
self.RefreshList()
def OnLocalButton(self, event):
self.URI = "LOCAL://"
self.EndModal(wx.ID_OK)
event.Skip()
def OnIpButton(self, event):
def GetColText(col):
return self.getColumnText(self.LatestSelection, col)
if self.LatestSelection is not None:
self.URI = "%s://%s:%s" % tuple(map(GetColText, (1, 2, 3)))
self.EndModal(wx.ID_OK)
event.Skip()
# Used by the ColumnSorterMixin, see wx/lib/mixins/listctrl.py
def GetListCtrl(self):
return self.ServicesList
def getColumnText(self, index, col):
item = self.ServicesList.GetItem(index, col)
return item.GetText()
def OnItemSelected(self, event):
self.SetURI(event.m_itemIndex)
event.Skip()
def OnItemActivated(self, event):
self.SetURI(event.m_itemIndex)
self.EndModal(wx.ID_OK)
event.Skip()
# def SetURI(self, idx):
# connect_type = self.getColumnText(idx, 1)
# connect_address = self.getColumnText(idx, 2)
# connect_port = self.getColumnText(idx, 3)
#
# self.URI = "%s://%s:%s"%(connect_type, connect_address, connect_port)
def SetURI(self, idx):
self.LatestSelection = idx
svcname = self.getColumnText(idx, 0)
connect_type = self.getColumnText(idx, 1)
self.URI = "%s://%s" % (connect_type, svcname + '.' + service_type)
def GetURI(self):
return self.URI
def remove_service(self, zeroconf, _type, name):
wx.CallAfter(self._removeService, name)
def _removeService(self, name):
'''
called when a service with the desired type goes offline.
'''
# loop through the list items looking for the service that went offline
for idx in xrange(self.ServicesList.GetItemCount()):
# this is the unique identifier assigned to the item
item_id = self.ServicesList.GetItemData(idx)
# this is the full typename that was received by addService
item_name = self.itemDataMap[item_id][4]
if item_name == name:
self.ServicesList.DeleteItem(idx)
break
def add_service(self, zeroconf, _type, name):
wx.CallAfter(self._addService, _type, name)
def _addService(self, _type, name):
'''
called when a service with the desired type is discovered.
'''
info = self.ZeroConfInstance.get_service_info(_type, name)
svcname = name.split(".")[0]
typename = _type.split(".")[0][1:]
ip = str(socket.inet_ntoa(info.address))
port = info.port
num_items = self.ServicesList.GetItemCount()
# display the new data in the list
new_item = self.ServicesList.InsertStringItem(num_items, svcname)
self.ServicesList.SetStringItem(new_item, 1, "%s" % typename)
self.ServicesList.SetStringItem(new_item, 2, "%s" % ip)
self.ServicesList.SetStringItem(new_item, 3, "%s" % port)
# record the new data for the ColumnSorterMixin
# we assign every list item a unique id (that won't change when items
# are added or removed)
self.ServicesList.SetItemData(new_item, self.nextItemId)
# the value of each column has to be stored in the itemDataMap
# so that ColumnSorterMixin knows how to sort the column.
# "name" is included at the end so that self.removeService
# can access it.
self.itemDataMap[self.nextItemId] = [svcname, typename, ip, port, name]
self.nextItemId += 1