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
import wx
from zope.interface import Interface, Attribute
from zope.interface.verify import verifyObject
from connectors import connectors_dialog, ConnectorDialog, GetConnectorFromURI
[ID_URIWIZARDDIALOG,ID_URITYPECHOICE] = [wx.NewId() for _init_ctrls in range(2)]
class IConnectorPanel(Interface):
"""This is interface for panel of seperate connector type"""
uri = Attribute("""uri of connections""")
type = Attribute("""type of connector""")
def SetURI(uri):
"""methode for set uri"""
def GetURI():
"""metohde for get uri"""
class UriLocationEditor(wx.Dialog):
def _init_ctrls(self, parent):
wx.Dialog.__init__(self, id=ID_URIWIZARDDIALOG,
name='UriLocationEditor', parent=parent,
title='Uri location')
self.UriTypeChoice = wx.Choice(parent=self, id=ID_URIWIZARDDIALOG, choices = self.URITYPES)
self.UriTypeChoice.SetSelection(0)
self.Bind(wx.EVT_CHOICE, self.OnTypeChoice, self.UriTypeChoice)
self.PanelSizer = wx.BoxSizer(wx.HORIZONTAL)
self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL)
def _init_sizers(self):
self.mainSizer = wx.BoxSizer(wx.VERTICAL)
typeSizer = wx.BoxSizer(wx.HORIZONTAL)
typeSizer.Add(wx.StaticText(self,wx.ID_ANY,"URI type:"), border=5, flag=wx.ALIGN_CENTER_VERTICAL|wx.ALL)
typeSizer.Add(self.UriTypeChoice, border=5, flag=wx.ALL)
self.mainSizer.Add(typeSizer)
self.mainSizer.Add(self.PanelSizer, border=5, flag=wx.ALL)
self.mainSizer.Add(self.ButtonSizer, border=5, flag=wx.BOTTOM|wx.ALIGN_CENTER_HORIZONTAL)
self.SetSizer(self.mainSizer)
def __init__(self, parent, uri):
self.URITYPES = ["- Select URI type -"]
for connector_type, connector_function in connectors_dialog.iteritems():
try:
connector_function['function']()
self.URITYPES.append(connector_type)
except Exception as e:
pass
self.selected = None
self.parrent = parent
self.logger = self.parrent.CTR.logger
self._init_ctrls(parent)
self._init_sizers()
self.SetURI(uri)
self.CenterOnParent()
def OnTypeChoice(self, event):
self._removePanelType()
index = event.GetSelection()
if index > 0:
self.selected = event.GetString()
self.panelType = self._getConnectorDialog(self.selected)
if self.panelType:
self.PanelSizer.Add(self.panelType)
self.mainSizer.Layout()
self.Fit()
self.panelType.Refresh()
def SetURI(self, uri):
self._removePanelType()
uri_list = uri.strip().split(":")
if uri_list:
uri_type = uri_list[0].upper()
type = GetConnectorFromURI(uri_type)
if type:
self.selected = type
self.UriTypeChoice.SetStringSelection(self.selected)
self.panelType = self._getConnectorDialog(self.selected)
if self.panelType:
self.panelType.SetURI(uri)
self.PanelSizer.Add(self.panelType)
self.PanelSizer.Layout()
self.mainSizer.Layout()
self.Fit()
self.panelType.Refresh()
def GetURI(self):
if not self.selected or not self.panelType:
return ""
else:
return self.panelType.GetURI()
def _removePanelType(self):
for i in range(self.PanelSizer.GetItemCount()):
item = self.PanelSizer.GetItem(i)
item.DeleteWindows()
self.PanelSizer.Remove(i)
self.Fit()
self.PanelSizer.Layout()
def _getConnectorDialog(self, connectorType):
connector = ConnectorDialog(connectorType, self)
if connector and IConnectorPanel.providedBy(connector):
if verifyObject(IConnectorPanel, connector):
return connector
else:
return None