beremiz

make clipboard open minimal time as wxPython documentation recommends

2018-05-25, Andrey Skvortsov
5ce6d08ff2c7
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
# -*- 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
#
# 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 re
import datetime
import wx
# -------------------------------------------------------------------------------
# Helpers
# -------------------------------------------------------------------------------
LOCATIONDATATYPES = {"X": ["BOOL"],
"B": ["SINT", "USINT", "BYTE", "STRING"],
"W": ["INT", "UINT", "WORD", "WSTRING"],
"D": ["DINT", "UDINT", "REAL", "DWORD"],
"L": ["LINT", "ULINT", "LREAL", "LWORD"]}
def gen_get_function(f):
def get_function(v):
try:
return f(v)
except Exception:
return None
return get_function
def gen_get_string(delimiter):
STRING_MODEL = re.compile("%(delimiter)s([^%(delimiter)s]*)%(delimiter)s$" % {"delimiter": delimiter})
def get_string(v):
result = STRING_MODEL.match(v)
if result is not None:
return result.group(1)
return None
return get_string
getinteger = gen_get_function(int)
getfloat = gen_get_function(float)
getstring = gen_get_string("'")
getwstring = gen_get_string('"')
SECOND = 1000000
MINUTE = 60 * SECOND
HOUR = 60 * MINUTE
DAY = 24 * HOUR
IEC_TIME_MODEL = re.compile("(?:(?:T|TIME)#)?(-)?(?:(%(float)s)D_?)?(?:(%(float)s)H_?)?(?:(%(float)s)M(?!S)_?)?(?:(%(float)s)S_?)?(?:(%(float)s)MS)?$" % {"float": "[0-9]+(?:\.[0-9]+)?"})
IEC_DATE_MODEL = re.compile("(?:(?:D|DATE)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})$")
IEC_DATETIME_MODEL = re.compile("(?:(?:DT|DATE_AND_TIME)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})-([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$")
IEC_TIMEOFDAY_MODEL = re.compile("(?:(?:TOD|TIME_OF_DAY)#)?([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$")
def gettime(v):
result = IEC_TIME_MODEL.match(v.upper())
if result is not None:
negative, days, hours, minutes, seconds, milliseconds = result.groups()
microseconds = 0
not_null = False
for value, factor in [(days, DAY),
(hours, HOUR),
(minutes, MINUTE),
(seconds, SECOND),
(milliseconds, 1000)]:
if value is not None:
microseconds += float(value) * factor
not_null = True
if not not_null:
return None
if negative is not None:
microseconds = -microseconds
return datetime.timedelta(microseconds=microseconds)
else:
return None
def getdate(v):
result = IEC_DATE_MODEL.match(v.upper())
if result is not None:
year, month, day = result.groups()
try:
date = datetime.datetime(int(year), int(month), int(day))
except ValueError:
return None
base_date = datetime.datetime(1970, 1, 1)
return date - base_date
else:
return None
def getdatetime(v):
result = IEC_DATETIME_MODEL.match(v.upper())
if result is not None:
year, month, day, hours, minutes, seconds = result.groups()
try:
date = datetime.datetime(int(year), int(month), int(day), int(hours), int(minutes), int(float(seconds)), int((float(seconds) * SECOND) % SECOND))
except ValueError:
return None
base_date = datetime.datetime(1970, 1, 1)
return date - base_date
else:
return None
def gettimeofday(v):
result = IEC_TIMEOFDAY_MODEL.match(v.upper())
if result is not None:
hours, minutes, seconds = result.groups()
microseconds = 0
for value, factor in [(hours, HOUR),
(minutes, MINUTE),
(seconds, SECOND)]:
microseconds += float(value) * factor
return datetime.timedelta(microseconds=microseconds)
else:
return None
GetTypeValue = {"BOOL": lambda x: {"TRUE": True, "FALSE": False, "0": False, "1": True}.get(x.upper(), None),
"SINT": getinteger,
"INT": getinteger,
"DINT": getinteger,
"LINT": getinteger,
"USINT": getinteger,
"UINT": getinteger,
"UDINT": getinteger,
"ULINT": getinteger,
"BYTE": getinteger,
"WORD": getinteger,
"DWORD": getinteger,
"LWORD": getinteger,
"REAL": getfloat,
"LREAL": getfloat,
"STRING": getstring,
"WSTRING": getwstring,
"TIME": gettime,
"DATE": getdate,
"DT": getdatetime,
"TOD": gettimeofday}
# -------------------------------------------------------------------------------
# Force Variable Dialog
# -------------------------------------------------------------------------------
class ForceVariableDialog(wx.TextEntryDialog):
def __init__(self, parent, iec_type, defaultValue=""):
wx.TextEntryDialog.__init__(
self, parent,
message=_("Forcing Variable Value"),
caption=_("Please enter value for a \"%s\" variable:") % iec_type,
defaultValue=defaultValue,
style=wx.OK | wx.CANCEL | wx.CENTRE, pos=wx.DefaultPosition)
self.IEC_Type = iec_type
self.Bind(wx.EVT_BUTTON, self.OnOK,
self.GetSizer().GetItem(2).GetSizer().GetItem(1).
GetSizer().GetAffirmativeButton())
self.ValueTextCtrl = self.GetSizer().GetItem(1).GetWindow()
if self.IEC_Type == "BOOL":
self.ToggleButton = wx.ToggleButton(self, label=_("Toggle value"))
value = GetTypeValue[self.IEC_Type](defaultValue)
if value is not None:
self.ToggleButton.SetValue(value)
border = self.GetSizer().GetItem(1).GetBorder()
self.GetSizer().Insert(before=2, item=self.ToggleButton,
border=border,
flag=wx.LEFT | wx.RIGHT | wx.EXPAND)
self.Bind(wx.EVT_TOGGLEBUTTON, self.ToggleBoolValue, self.ToggleButton)
self.Fit()
def ToggleBoolValue(self, event):
value = self.ToggleButton.GetValue()
self.ValueTextCtrl.SetValue(unicode(value))
def OnOK(self, event):
message = None
value = self.ValueTextCtrl.GetValue()
if value == "":
message = _("You must type a value!")
elif GetTypeValue[self.IEC_Type](value) is None:
message = _("Invalid value \"{a1}\" for \"{a2}\" variable!").format(a1=value, a2=self.IEC_Type)
if message is not None:
dialog = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)
dialog.ShowModal()
dialog.Destroy()
else:
self.EndModal(wx.ID_OK)
event.Skip()
def GetValue(self):
return GetTypeValue[self.IEC_Type](wx.TextEntryDialog.GetValue(self))