wxglade_hmi/wxglade_hmi.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Mon, 07 Jan 2019 20:32:40 +0000
branchpy3-fix
changeset 2564 186f0137b0ca
parent 2248 d9353e440887
child 2488 889c43872f4c
permissions -rw-r--r--
Close branch py3-fix.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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# Copyright (C) 2017: Andrey Skvortsov
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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from __future__ import absolute_import
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import os
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import sys
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import shutil
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from xml.dom import minidom
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import wx
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import util.paths as paths
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from py_ext import PythonFileCTNMixin
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class WxGladeHMI(PythonFileCTNMixin):
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    ConfNodeMethods = [
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        {
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            "bitmap":    "editWXGLADE",
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            "name":    _("WXGLADE GUI"),
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            "tooltip": _("Edit a WxWidgets GUI with WXGlade"),
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            "method":   "_editWXGLADE"
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        },
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    ]
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    def GetIconName(self):
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        return "wxGlade"
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    def ConfNodePath(self):
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        return paths.AbsDir(__file__)
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    def _getWXGLADEpath(self, project_path=None):
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        if project_path is None:
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            project_path = self.CTNPath()
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        # define name for wxGlade gui file
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        return os.path.join(project_path, "hmi.wxg")
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    def GetWxGladePath(self):
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        path = None
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        try:
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            from wxglade import __file__ as fileName
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            path = os.path.dirname(fileName)
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            return path
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        except ImportError:
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            pass
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        defLibDir = "/usr/share/wxglade"
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        if os.path.isdir(defLibDir):
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            path = defLibDir
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        return path
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    def launch_wxglade(self, options, wait=False):
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        path = self.GetWxGladePath()
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        glade = os.path.join(path, 'wxglade.py')
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        if wx.Platform == '__WXMSW__':
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            glade = "\"%s\"" % glade
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        mode = {False: os.P_NOWAIT, True: os.P_WAIT}[wait]
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        os.spawnv(mode, sys.executable,
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                  ["\"%s\"" % sys.executable] + [glade] + options)
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    def OnCTNSave(self, from_project_path=None):
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        if from_project_path is not None:
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            shutil.copyfile(self._getWXGLADEpath(from_project_path),
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                            self._getWXGLADEpath())
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        return PythonFileCTNMixin.OnCTNSave(self, from_project_path)
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    def CTNGenerate_C(self, buildpath, locations):
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        # list containing description of all objects declared in wxglade
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        hmi_objects = []
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        # list containing only description of the main frame object
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        main_frames = []
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        wxgfile_path = self._getWXGLADEpath()
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        if os.path.exists(wxgfile_path):
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            wxgfile = open(wxgfile_path, 'r')
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            wxgtree = minidom.parse(wxgfile)
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            wxgfile.close()
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            for node in wxgtree.childNodes[1].childNodes:
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                if node.nodeType == wxgtree.ELEMENT_NODE:
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                    name = node.getAttribute("name")
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                    wxglade_object_desc = {
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                        "name": name,
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                        "class": node.getAttribute("class"),
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                        "handlers": [
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                            hnode.firstChild.data for hnode in
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                            node.getElementsByTagName("handler")]}
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                    hmi_objects.append(wxglade_object_desc)
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                    if name == self.CTNName():
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                        main_frames.append(wxglade_object_desc)
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            hmipyfile_path = os.path.join(self._getBuildPath(), "hmi.py")
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            if wx.Platform == '__WXMSW__':
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                wxgfile_path = "\"%s\"" % wxgfile_path
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                wxghmipyfile_path = "\"%s\"" % hmipyfile_path
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            else:
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                wxghmipyfile_path = hmipyfile_path
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            self.launch_wxglade(
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                ['-o', wxghmipyfile_path, '-g', 'python', wxgfile_path], wait=True)
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            hmipyfile = open(hmipyfile_path, 'r')
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            define_hmi = hmipyfile.read().decode('utf-8')
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            hmipyfile.close()
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        else:
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            define_hmi = ""
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        declare_hmi = "\n".join(["%(name)s = None\n" % x for x in main_frames])
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        declare_hmi += "\n".join(["\n".join(["%(class)s.%(h)s = %(h)s" %
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                                             dict(x, h=h) for h in x['handlers']])
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                                  for x in hmi_objects])
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        global_hmi = ("global %s\n" % ",".join(
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            [x["name"] for x in main_frames]) if len(main_frames) > 0 else "")
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        init_hmi = "\n".join(["""\
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def OnCloseFrame(evt):
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    wx.MessageBox(_("Please stop PLC to close"))
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%(name)s = %(class)s(None)
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%(name)s.Bind(wx.EVT_CLOSE, OnCloseFrame)
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%(name)s.Show()
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""" % x for x in main_frames])
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        cleanup_hmi = "\n".join(
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            ["if %(name)s is not None: %(name)s.Destroy()" % x
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             for x in main_frames])
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        self.PreSectionsTexts = {
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            "globals": define_hmi,
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            "start":   global_hmi,
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            "stop":    global_hmi + cleanup_hmi
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        }
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        self.PostSectionsTexts = {
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            "globals": declare_hmi,
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            "start":   init_hmi,
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        }
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        if len(main_frames) == 0 and \
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           len(getattr(self.CodeFile, "start").getanyText().strip()) == 0:
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            self.GetCTRoot().logger.write_warning(
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                _("Warning: WxGlade HMI has no object with name identical to extension name, and no python code is provided in start section to create object.\n"))
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        return PythonFileCTNMixin.CTNGenerate_C(self, buildpath, locations)
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    def _editWXGLADE(self):
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        wxg_filename = self._getWXGLADEpath()
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        open_wxglade = True
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        if not self.GetCTRoot().CheckProjectPathPerm():
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            dialog = wx.MessageDialog(self.GetCTRoot().AppFrame,
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                                      _("You don't have write permissions.\nOpen wxGlade anyway ?"),
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                                      _("Open wxGlade"),
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                                      wx.YES_NO | wx.ICON_QUESTION)
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            open_wxglade = dialog.ShowModal() == wx.ID_YES
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            dialog.Destroy()
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        if open_wxglade:
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            if not os.path.exists(wxg_filename):
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                hmi_name = self.BaseParams.getName()
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                open(wxg_filename, "w").write("""<?xml version="1.0"?>
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    <application path="" name="" class="" option="0" language="python" top_window="%(name)s" encoding="UTF-8" use_gettext="0" overwrite="0" use_new_namespace="1" for_version="2.8" is_template="0">
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        <object class="%(class)s" name="%(name)s" base="EditFrame">
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            <style>wxDEFAULT_FRAME_STYLE</style>
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            <title>frame_1</title>
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            <object class="wxBoxSizer" name="sizer_1" base="EditBoxSizer">
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                <orient>wxVERTICAL</orient>
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            <object class="sizerslot" />
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        </object>
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        </object>
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    </application>
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    """ % {"name": hmi_name, "class": "Class_%s" % hmi_name})
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            if wx.Platform == '__WXMSW__':
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                wxg_filename = "\"%s\"" % wxg_filename
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            self.launch_wxglade([wxg_filename])