c_ext/CFileEditor.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Tue, 26 Jun 2018 17:34:15 +0300
changeset 2229 3c94bac4526e
parent 1881 091005ec69c4
child 3750 f62625418bff
permissions -rw-r--r--
Fix 'DoGetTextExtent - invalid DC' error

most likely this error happens only on certain wx backends.
GTK3+ on GNU/Linux is apparently one of them.
The problem is described in wxWidgets issue tracker.
http://trac.wxwidgets.org/ticket/12486

[-------------------------------------------------------------------------------------------------------------------]
platform:
Linux-4.16.0-2-rt-amd64-x86_64-with-debian-buster-sid

python-version:
2.7.15

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 1605, in DispatchDebugValuesProc
self.CallWeakcallables("__tick__", "NewDataAvailable", debug_ticks)
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 1585, in CallWeakcallables
function(*cargs)
File "/home/developer/WorkData/PLC/beremiz/beremiz/editors/Viewer.py", line 1217, in NewDataAvailable
refresh_rect.Union(element.GetRedrawRect())
File "/home/developer/WorkData/PLC/beremiz/beremiz/graphics/GraphicCommons.py", line 1609, in GetRedrawRect
self.ValueSize = self.Parent.GetMiniTextExtent(self.ComputedValue)
File "/home/developer/WorkData/PLC/beremiz/beremiz/editors/Viewer.py", line 932, in GetMiniTextExtent
return self.MiniTextDC.GetTextExtent(text)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_gdi.py", line 4127, in GetTextExtent
return _gdi_.DC_GetTextExtent(*args, **kwargs)
<class 'wx._core.PyAssertionError'>: C++ assertion "m_graphicContext" failed at ../src/common/dcgraph.cpp(1160) in DoGetTextExtent(): wxGCDC(cg)::DoGetTextExtent - invalid DC

wx-platform:
__WXGTK__

wx-version:
3.0.2.0

[-------------------------------------------------------------------------------------------------------------------]

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/LogViewer.py", line 740, in OnMessageToolTipTimer
self.MessageToolTip.SetFont(self.Font)
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 75, in SetFont
self.RefreshTip()
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 158, in RefreshTip
self.SetClientSize(self.GetToolTipSize())
File "/home/developer/WorkData/PLC/beremiz/beremiz/controls/CustomToolTip.py", line 145, in GetToolTipSize
w, h = dc.GetTextExtent(line)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_gdi.py", line 4127, in GetTextExtent
return _gdi_.DC_GetTextExtent(*args, **kwargs)
<class 'wx._core.PyAssertionError'>: C++ assertion "m_graphicContext" failed at ../src/common/dcgraph.cpp(1160) in DoGetTextExtent(): wxGCDC(cg)::DoGetTextExtent - invalid DC

[-------------------------------------------------------------------------------------------------------------------]
#!/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
#
# 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 wx.stc as stc

from controls.CustomStyledTextCtrl import faces
from editors.CodeFileEditor import CodeFileEditor, CodeEditor


class CppEditor(CodeEditor):

    KEYWORDS = ["asm", "auto", "bool", "break", "case", "catch", "char", "class",
                "const", "const_cast", "continue", "default", "delete", "do", "double",
                "dynamic_cast", "else", "enum", "explicit", "export", "extern", "false",
                "float", "for", "friend", "goto", "if", "inline", "int", "long", "mutable",
                "namespace", "new", "operator", "private", "protected", "public", "register",
                "reinterpret_cast", "return", "short", "signed", "sizeof", "static",
                "static_cast", "struct", "switch", "template", "this", "throw", "true", "try",
                "typedef", "typeid", "typename", "union", "unsigned", "using", "virtual",
                "void", "volatile", "wchar_t", "while"]
    COMMENT_HEADER = "/"

    def SetCodeLexer(self):
        self.SetLexer(stc.STC_LEX_CPP)

        self.StyleSetSpec(stc.STC_C_COMMENT, 'fore:#408060,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_COMMENTLINE, 'fore:#408060,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_COMMENTDOC, 'fore:#408060,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_NUMBER, 'fore:#0076AE,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_WORD, 'bold,fore:#800056,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_STRING, 'fore:#2a00ff,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_PREPROCESSOR, 'bold,fore:#800056,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_OPERATOR, 'bold,size:%(size)d' % faces)
        self.StyleSetSpec(stc.STC_C_STRINGEOL, 'back:#FFD5FF,size:%(size)d' % faces)


class CFileEditor(CodeFileEditor):
    """
    CFileEditor Main Frame Class
    """

    CONFNODEEDITOR_TABS = [
        (_("C code"), "_create_CodePanel")]
    CODE_EDITOR = CppEditor