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
#!/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) 2012: 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
from collections import namedtuple
import wx
import wx.lib.agw.customtreectrl as CT
import wx.lib.buttons
from plcopen.types_enums import *
from util.BitmapLibrary import GetBitmap
# Customize CustomTreeItem for adding icon on item right
CT.GenericTreeItem._rightimages = []
def SetRightImages(self, images):
self._rightimages = images
CT.GenericTreeItem.SetRightImages = SetRightImages
def GetRightImages(self):
return self._rightimages
CT.GenericTreeItem.GetRightImages = GetRightImages
class CustomTreeCtrlWithRightImage(CT.CustomTreeCtrl):
def SetRightImageList(self, imageList):
self._imageListRight = imageList
def GetLineHeight(self, item):
height = CT.CustomTreeCtrl.GetLineHeight(self, item)
rightimages = item.GetRightImages()
if len(rightimages) > 0:
_r_image_w, r_image_h = self._imageListRight.GetSize(rightimages[0])
return max(height, r_image_h + 8)
return height
def GetItemRightImagesBBox(self, item):
rightimages = item.GetRightImages()
if len(rightimages) > 0:
w, _h = self.GetClientSize()
total_h = self.GetLineHeight(item)
r_image_w, r_image_h = self._imageListRight.GetSize(rightimages[0])
bbox_width = (r_image_w + 4) * len(rightimages) + 4
bbox_height = r_image_h + 8
bbox_x = w - bbox_width
bbox_y = item.GetY() + ((total_h > r_image_h) and [(total_h-r_image_h)/2] or [0])[0]
return wx.Rect(bbox_x, bbox_y, bbox_width, bbox_height)
return None
def IsOverItemRightImage(self, item, point):
rightimages = item.GetRightImages()
if len(rightimages) > 0:
point = self.CalcUnscrolledPosition(point)
r_image_w, r_image_h = self._imageListRight.GetSize(rightimages[0])
images_bbx = self.GetItemRightImagesBBox(item)
rect = wx.Rect(images_bbx.x + 4, images_bbx.y + 4,
r_image_w, r_image_h)
for r_image in rightimages:
if rect.Inside(point):
return r_image
rect.x += r_image_w + 4
return None
def PaintItem(self, item, dc, level, align):
CT.CustomTreeCtrl.PaintItem(self, item, dc, level, align)
rightimages = item.GetRightImages()
if len(rightimages) > 0:
images_bbx = self.GetItemRightImagesBBox(item)
r_image_w, _r_image_h = self._imageListRight.GetSize(rightimages[0])
dc.SetBrush(wx.TRANSPARENT_BRUSH)
dc.SetPen(wx.TRANSPARENT_PEN)
dc.DrawRectangle(images_bbx.x, images_bbx.y,
images_bbx.width, images_bbx.height)
x_pos = images_bbx.x + 4
for r_image in rightimages:
self._imageListRight.Draw(
r_image, dc, x_pos, images_bbx.y + 4,
wx.IMAGELIST_DRAW_TRANSPARENT)
x_pos += r_image_w + 4
_ButtonCallbacks = namedtuple("ButtonCallbacks", ["leftdown", "dclick"])
class PouInstanceVariablesPanel(wx.Panel):
def __init__(self, parent, window, controller, debug):
wx.Panel.__init__(self, name='PouInstanceTreePanel',
parent=parent, pos=wx.Point(0, 0),
size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)
self.ParentButton = wx.lib.buttons.GenBitmapButton(
self, bitmap=GetBitmap("top"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.ParentButton.SetToolTipString(_("Parent instance"))
self.Bind(wx.EVT_BUTTON, self.OnParentButtonClick,
self.ParentButton)
self.InstanceChoice = wx.ComboBox(self, size=wx.Size(0, 0), style=wx.CB_READONLY)
self.Bind(wx.EVT_COMBOBOX, self.OnInstanceChoiceChanged,
self.InstanceChoice)
self.DebugButton = wx.lib.buttons.GenBitmapButton(
self, bitmap=GetBitmap("debug_instance"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.DebugButton.SetToolTipString(_("Debug instance"))
self.Bind(wx.EVT_BUTTON, self.OnDebugButtonClick,
self.DebugButton)
self.VariablesList = CustomTreeCtrlWithRightImage(
self,
style=wx.SUNKEN_BORDER,
agwStyle=(CT.TR_NO_BUTTONS |
CT.TR_SINGLE |
CT.TR_HAS_VARIABLE_ROW_HEIGHT |
CT.TR_HIDE_ROOT |
CT.TR_NO_LINES |
getattr(CT, "TR_ALIGN_WINDOWS_RIGHT", CT.TR_ALIGN_WINDOWS)))
self.VariablesList.SetIndent(0)
self.VariablesList.SetSpacing(5)
self.VariablesList.DoSelectItem = lambda *x, **y: True
self.VariablesList.Bind(CT.EVT_TREE_ITEM_ACTIVATED,
self.OnVariablesListItemActivated)
self.VariablesList.Bind(wx.EVT_LEFT_DOWN, self.OnVariablesListLeftDown)
self.VariablesList.Bind(wx.EVT_KEY_DOWN, self.OnVariablesListKeyDown)
self.TreeRightImageList = wx.ImageList(24, 24)
self.EditImage = self.TreeRightImageList.Add(GetBitmap("edit"))
self.DebugInstanceImage = self.TreeRightImageList.Add(GetBitmap("debug_instance"))
self.VariablesList.SetRightImageList(self.TreeRightImageList)
self.ButtonCallBacks = {
self.EditImage: _ButtonCallbacks(
self.EditButtonCallback, None),
self.DebugInstanceImage: _ButtonCallbacks(
self.DebugButtonCallback, self.DebugButtonDClickCallback)}
buttons_sizer = wx.FlexGridSizer(cols=3, hgap=0, rows=1, vgap=0)
buttons_sizer.AddWindow(self.ParentButton)
buttons_sizer.AddWindow(self.InstanceChoice, flag=wx.GROW)
buttons_sizer.AddWindow(self.DebugButton)
buttons_sizer.AddGrowableCol(1)
buttons_sizer.AddGrowableRow(0)
main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
main_sizer.AddSizer(buttons_sizer, flag=wx.GROW)
main_sizer.AddWindow(self.VariablesList, flag=wx.GROW)
main_sizer.AddGrowableCol(0)
main_sizer.AddGrowableRow(1)
self.SetSizer(main_sizer)
self.ParentWindow = window
self.Controller = controller
self.Debug = debug
if not self.Debug:
self.DebugButton.Hide()
self.PouTagName = None
self.PouInfos = None
self.PouInstance = None
def __del__(self):
self.Controller = None
def SetTreeImageList(self, tree_image_list):
self.VariablesList.SetImageList(tree_image_list)
def SetController(self, controller):
self.Controller = controller
self.RefreshView()
def SetPouType(self, tagname, pou_instance=None):
if self.Controller is not None:
if tagname == "Project":
config_name = self.Controller.GetProjectMainConfigurationName()
if config_name is not None:
tagname = ComputeConfigurationName(config_name)
if pou_instance is not None:
self.PouInstance = pou_instance
if self.PouTagName != tagname:
self.PouTagName = tagname
self.RefreshView()
else:
self.RefreshInstanceChoice()
else:
self.RefreshView()
def ResetView(self):
self.Controller = None
self.PouTagName = None
self.PouInfos = None
self.PouInstance = None
self.RefreshView()
def RefreshView(self):
self.Freeze()
self.VariablesList.DeleteAllItems()
if self.Controller is not None and self.PouTagName is not None:
if self.PouTagName.split('::')[0] in ['A', 'T']:
self.PouInfos = self.Controller.GetPouVariables('P::%s' % self.PouTagName.split('::')[1], self.Debug)
else:
self.PouInfos = self.Controller.GetPouVariables(self.PouTagName, self.Debug)
if None in self.Controller.GetEditedElementType(self.PouTagName, self.Debug) and self.PouInfos is not None:
self.PouInfos.debug = False
else:
self.PouInfos = None
if self.PouInfos is not None:
root = self.VariablesList.AddRoot("", data=self.PouInfos)
for var_infos in self.PouInfos.variables:
if var_infos.type is not None:
text = "%s (%s)" % (var_infos.name, var_infos.type)
else:
text = var_infos.name
right_images = []
if var_infos.edit:
right_images.append(self.EditImage)
if var_infos.debug and self.Debug:
right_images.append(self.DebugInstanceImage)
item = self.VariablesList.AppendItem(root, text)
item.SetRightImages(right_images)
self.VariablesList.SetItemImage(item, self.ParentWindow.GetTreeImage(var_infos.var_class))
self.VariablesList.SetPyData(item, var_infos)
self.RefreshInstanceChoice()
self.RefreshButtons()
self.Thaw()
def RefreshInstanceChoice(self):
self.InstanceChoice.Clear()
self.InstanceChoice.SetValue("")
if self.Controller is not None and self.PouInfos is not None:
instances = self.Controller.SearchPouInstances(self.PouTagName, self.Debug)
for instance in instances:
self.InstanceChoice.Append(instance)
if len(instances) == 1:
self.PouInstance = instances[0]
if self.PouInfos.var_class in [ITEM_CONFIGURATION, ITEM_RESOURCE]:
self.PouInstance = None
self.InstanceChoice.SetSelection(0)
elif self.PouInstance in instances:
self.InstanceChoice.SetStringSelection(self.PouInstance)
else:
self.PouInstance = None
self.InstanceChoice.SetValue(_("Select an instance"))
def RefreshButtons(self):
enabled = self.InstanceChoice.GetSelection() != -1
self.ParentButton.Enable(enabled and self.PouInfos.var_class != ITEM_CONFIGURATION)
self.DebugButton.Enable(enabled and self.PouInfos.debug and self.Debug)
root = self.VariablesList.GetRootItem()
if root is not None and root.IsOk():
item, item_cookie = self.VariablesList.GetFirstChild(root)
while item is not None and item.IsOk():
panel = self.VariablesList.GetItemWindow(item)
if panel is not None:
for child in panel.GetChildren():
if child.GetName() != "edit":
child.Enable(enabled)
item, item_cookie = self.VariablesList.GetNextChild(root, item_cookie)
def EditButtonCallback(self, infos):
var_class = infos.var_class
if var_class == ITEM_RESOURCE:
tagname = ComputeConfigurationResourceName(
self.InstanceChoice.GetStringSelection(),
infos.name)
elif var_class == ITEM_TRANSITION:
tagname = ComputePouTransitionName(
self.PouTagName.split("::")[1],
infos.name)
elif var_class == ITEM_ACTION:
tagname = ComputePouActionName(
self.PouTagName.split("::")[1],
infos.name)
else:
var_class = ITEM_POU
tagname = ComputePouName(infos.type)
self.ParentWindow.EditProjectElement(var_class, tagname)
def DebugButtonCallback(self, infos):
if self.InstanceChoice.GetSelection() != -1:
var_class = infos.var_class
instance_path = self.InstanceChoice.GetStringSelection()
if self.PouTagName.split("::")[0] in ["A", "T"]:
pos = instance_path.rfind('.')
instance_path = instance_path[0:pos]
var_path = "%s.%s" % (instance_path, infos.name)
if var_class in ITEMS_VARIABLE:
self.ParentWindow.AddDebugVariable(var_path, force=True)
elif var_class == ITEM_TRANSITION:
self.ParentWindow.OpenDebugViewer(
var_class,
var_path,
ComputePouTransitionName(
self.PouTagName.split("::")[1],
infos.name))
elif var_class == ITEM_ACTION:
self.ParentWindow.OpenDebugViewer(
var_class,
var_path,
ComputePouActionName(
self.PouTagName.split("::")[1],
infos.name))
else:
self.ParentWindow.OpenDebugViewer(
var_class,
var_path,
ComputePouName(infos.type))
def DebugButtonDClickCallback(self, infos):
if self.InstanceChoice.GetSelection() != -1:
if infos.var_class in ITEMS_VARIABLE:
self.ParentWindow.AddDebugVariable(
"%s.%s" % (self.InstanceChoice.GetStringSelection(),
infos.name),
force=True,
graph=True)
def ShowInstanceChoicePopup(self):
self.InstanceChoice.SetFocusFromKbd()
size = self.InstanceChoice.GetSize()
event = wx.MouseEvent(wx.EVT_LEFT_DOWN._getEvtType())
event.x = size.width / 2
event.y = size.height / 2
event.SetEventObject(self.InstanceChoice)
# event = wx.KeyEvent(wx.EVT_KEY_DOWN._getEvtType())
# event.m_keyCode = wx.WXK_SPACE
self.InstanceChoice.GetEventHandler().ProcessEvent(event)
def OnParentButtonClick(self, event):
if self.InstanceChoice.GetSelection() != -1:
parent_path = self.InstanceChoice.GetStringSelection().rsplit(".", 1)[0]
tagname = self.Controller.GetPouInstanceTagName(parent_path, self.Debug)
if tagname is not None:
wx.CallAfter(self.SetPouType, tagname, parent_path)
wx.CallAfter(self.ParentWindow.SelectProjectTreeItem, tagname)
event.Skip()
def OnInstanceChoiceChanged(self, event):
self.RefreshButtons()
event.Skip()
def OnDebugButtonClick(self, event):
if self.InstanceChoice.GetSelection() != -1:
self.ParentWindow.OpenDebugViewer(
self.PouInfos.var_class,
self.InstanceChoice.GetStringSelection(),
self.PouTagName)
event.Skip()
def OnVariablesListItemActivated(self, event):
selected_item = event.GetItem()
if selected_item is not None and selected_item.IsOk():
item_infos = self.VariablesList.GetPyData(selected_item)
if item_infos is not None:
item_button = self.VariablesList.IsOverItemRightImage(
selected_item, event.GetPoint())
if item_button is not None:
callback = self.ButtonCallBacks[item_button].dclick
if callback is not None:
callback(item_infos)
elif item_infos.var_class not in ITEMS_VARIABLE:
instance_path = self.InstanceChoice.GetStringSelection()
if item_infos.var_class == ITEM_RESOURCE:
if instance_path != "":
tagname = ComputeConfigurationResourceName(
instance_path,
item_infos.name)
else:
tagname = None
else:
parent_infos = self.VariablesList.GetPyData(selected_item.GetParent())
if item_infos.var_class == ITEM_ACTION:
tagname = ComputePouActionName(parent_infos.type, item_infos.name)
elif item_infos.var_class == ITEM_TRANSITION:
tagname = ComputePouTransitionName(parent_infos.type, item_infos.name)
else:
tagname = ComputePouName(item_infos.type)
if tagname is not None:
if instance_path != "":
item_path = "%s.%s" % (instance_path, item_infos.name)
else:
item_path = None
self.SetPouType(tagname, item_path)
self.ParentWindow.SelectProjectTreeItem(tagname)
event.Skip()
def OnVariablesListLeftDown(self, event):
if self.InstanceChoice.GetSelection() == -1:
wx.CallAfter(self.ShowInstanceChoicePopup)
else:
instance_path = self.InstanceChoice.GetStringSelection()
item, flags = self.VariablesList.HitTest(event.GetPosition())
if item is not None:
item_infos = self.VariablesList.GetPyData(item)
if item_infos is not None:
item_button = self.VariablesList.IsOverItemRightImage(
item, event.GetPosition())
if item_button is not None:
callback = self.ButtonCallBacks[item_button].leftdown
if callback is not None:
callback(item_infos)
elif (flags & CT.TREE_HITTEST_ONITEMLABEL and
item_infos.var_class in ITEMS_VARIABLE):
self.ParentWindow.EnsureTabVisible(
self.ParentWindow.DebugVariablePanel)
item_path = "%s.%s" % (instance_path, item_infos.name)
data = wx.TextDataObject(str((item_path, "debug")))
dragSource = wx.DropSource(self.VariablesList)
dragSource.SetData(data)
dragSource.DoDragDrop()
event.Skip()
def OnVariablesListKeyDown(self, event):
keycode = event.GetKeyCode()
if keycode != wx.WXK_LEFT:
event.Skip()