PLCOpenEditor.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 15 Sep 2017 19:01:31 +0300
changeset 1807 5562f34f2fc2
parent 1792 4d1de8b0183f
child 1814 fc387c4fc1d4
permissions -rwxr-xr-x
lazy initialization of highlight pens and brushes for DebugVariableViewer

Constructors wx.Pen() and wx.Brush() require wx.App to exist already.
That causes crash during import of the control,
because import is done before calling main application code.
#!/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
# Copyright (C) 2017: Andrey Skvortsov
#
# 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.

import wx
import os
import sys
import getopt

import version
import util.paths as paths
import util.ExceptionHandler


beremiz_dir = paths.AbsDir(__file__)


if __name__ == '__main__':
    # Usage message displayed when help request or when error detected in
    # command line
    def usage():
        print "\nUsage of PLCOpenEditor.py :"
        print "\n   %s [Filepath]\n" % sys.argv[0]

    # Parse options given to PLCOpenEditor in command line
    try:
        opts, args = getopt.getopt(sys.argv[1:], "h", ["help"])
    except getopt.GetoptError:
        # print help information and exit:
        usage()
        sys.exit(2)

    # Extract if help has been requested
    for o, a in opts:
        if o in ("-h", "--help"):
            usage()
            sys.exit()

    # Extract the optional filename to open
    fileOpen = None
    if len(args) > 1:
        usage()
        sys.exit()
    elif len(args) == 1:
        fileOpen = args[0]

    # Create wxApp (Need to create App before internationalization because of
    # Windows)
    if wx.VERSION >= (3, 0, 0):
        app = wx.App()
    else:
        app = wx.PySimpleApp()

    from util.misc import InstallLocalRessources
    InstallLocalRessources(beremiz_dir)

    # these imports require wx.GetApp to return
    # a valid application instance

    from IDEFrame import IDEFrame, AppendMenu
    from IDEFrame import \
        TITLE, \
        EDITORTOOLBAR, \
        FILEMENU, \
        EDITMENU, \
        DISPLAYMENU, \
        PROJECTTREE, \
        POUINSTANCEVARIABLESPANEL, \
        LIBRARYTREE, \
        PAGETITLES

    from IDEFrame import EncodeFileSystemPath, DecodeFileSystemPath
    from editors.Viewer import Viewer
    from PLCControler import PLCControler
    from dialogs import ProjectDialog
    from dialogs.AboutDialog import ShowAboutDialog


# -------------------------------------------------------------------------------
#                            PLCOpenEditor Main Class
# -------------------------------------------------------------------------------

# Define PLCOpenEditor FileMenu extra items id
[
    ID_PLCOPENEDITORFILEMENUGENERATE,
] = [wx.NewId() for _init_coll_FileMenu_Items in range(1)]


class PLCOpenEditor(IDEFrame):

    # Compatibility function for wx versions < 2.6
    if wx.VERSION < (2, 6, 0):
        def Bind(self, event, function, id=None):
            if id is not None:
                event(self, id, function)
            else:
                event(self, function)

    def _init_coll_FileMenu_Items(self, parent):
        AppendMenu(parent, help='', id=wx.ID_NEW,
                   kind=wx.ITEM_NORMAL, text=_(u'New') + '\tCTRL+N')
        AppendMenu(parent, help='', id=wx.ID_OPEN,
                   kind=wx.ITEM_NORMAL, text=_(u'Open') + '\tCTRL+O')
        AppendMenu(parent, help='', id=wx.ID_CLOSE,
                   kind=wx.ITEM_NORMAL, text=_(u'Close Tab') + '\tCTRL+W')
        AppendMenu(parent, help='', id=wx.ID_CLOSE_ALL,
                   kind=wx.ITEM_NORMAL, text=_(u'Close Project') + '\tCTRL+SHIFT+W')
        parent.AppendSeparator()
        AppendMenu(parent, help='', id=wx.ID_SAVE,
                   kind=wx.ITEM_NORMAL, text=_(u'Save') + '\tCTRL+S')
        AppendMenu(parent, help='', id=wx.ID_SAVEAS,
                   kind=wx.ITEM_NORMAL, text=_(u'Save As...') + '\tCTRL+SHIFT+S')
        AppendMenu(parent, help='', id=ID_PLCOPENEDITORFILEMENUGENERATE,
                   kind=wx.ITEM_NORMAL, text=_(u'Generate Program') + '\tCTRL+G')
        parent.AppendSeparator()
        AppendMenu(parent, help='', id=wx.ID_PAGE_SETUP,
                   kind=wx.ITEM_NORMAL, text=_(u'Page Setup') + '\tCTRL+ALT+P')
        AppendMenu(parent, help='', id=wx.ID_PREVIEW,
                   kind=wx.ITEM_NORMAL, text=_(u'Preview') + '\tCTRL+SHIFT+P')
        AppendMenu(parent, help='', id=wx.ID_PRINT,
                   kind=wx.ITEM_NORMAL, text=_(u'Print') + '\tCTRL+P')
        parent.AppendSeparator()
        AppendMenu(parent, help='', id=wx.ID_PROPERTIES,
                   kind=wx.ITEM_NORMAL, text=_(u'&Properties'))
        parent.AppendSeparator()
        AppendMenu(parent, help='', id=wx.ID_EXIT,
                   kind=wx.ITEM_NORMAL, text=_(u'Quit') + '\tCTRL+Q')

        self.Bind(wx.EVT_MENU, self.OnNewProjectMenu, id=wx.ID_NEW)
        self.Bind(wx.EVT_MENU, self.OnOpenProjectMenu, id=wx.ID_OPEN)
        self.Bind(wx.EVT_MENU, self.OnCloseTabMenu, id=wx.ID_CLOSE)
        self.Bind(wx.EVT_MENU, self.OnCloseProjectMenu, id=wx.ID_CLOSE_ALL)
        self.Bind(wx.EVT_MENU, self.OnSaveProjectMenu, id=wx.ID_SAVE)
        self.Bind(wx.EVT_MENU, self.OnSaveProjectAsMenu, id=wx.ID_SAVEAS)
        self.Bind(wx.EVT_MENU, self.OnGenerateProgramMenu,
                  id=ID_PLCOPENEDITORFILEMENUGENERATE)
        self.Bind(wx.EVT_MENU, self.OnPageSetupMenu, id=wx.ID_PAGE_SETUP)
        self.Bind(wx.EVT_MENU, self.OnPreviewMenu, id=wx.ID_PREVIEW)
        self.Bind(wx.EVT_MENU, self.OnPrintMenu, id=wx.ID_PRINT)
        self.Bind(wx.EVT_MENU, self.OnPropertiesMenu, id=wx.ID_PROPERTIES)
        self.Bind(wx.EVT_MENU, self.OnQuitMenu, id=wx.ID_EXIT)

        self.AddToMenuToolBar([(wx.ID_NEW, "new", _(u'New'), None),
                               (wx.ID_OPEN, "open", _(u'Open'), None),
                               (wx.ID_SAVE, "save", _(u'Save'), None),
                               (wx.ID_SAVEAS, "saveas", _(u'Save As...'), None),
                               (wx.ID_PRINT, "print", _(u'Print'), None)])

    def _init_coll_HelpMenu_Items(self, parent):
        AppendMenu(parent, help='', id=wx.ID_HELP,
                   kind=wx.ITEM_NORMAL, text=_(u'PLCOpenEditor') + '\tF1')
        # AppendMenu(parent, help='', id=wx.ID_HELP_CONTENTS,
        #      kind=wx.ITEM_NORMAL, text=u'PLCOpen\tF2')
        # AppendMenu(parent, help='', id=wx.ID_HELP_CONTEXT,
        #      kind=wx.ITEM_NORMAL, text=u'IEC 61131-3\tF3')

        def handler(event):
            return wx.MessageBox(
                version.GetCommunityHelpMsg(),
                _(u'Community support'),
                wx.OK | wx.ICON_INFORMATION)

        id = wx.NewId()
        parent.Append(help='', id=id, kind=wx.ITEM_NORMAL, text=_(u'Community support'))
        self.Bind(wx.EVT_MENU, handler, id=id)

        AppendMenu(parent, help='', id=wx.ID_ABOUT,
                   kind=wx.ITEM_NORMAL, text=_(u'About'))
        self.Bind(wx.EVT_MENU, self.OnPLCOpenEditorMenu, id=wx.ID_HELP)
        # self.Bind(wx.EVT_MENU, self.OnPLCOpenMenu, id=wx.ID_HELP_CONTENTS)
        self.Bind(wx.EVT_MENU, self.OnAboutMenu, id=wx.ID_ABOUT)

    def __init__(self, parent, fileOpen=None):
        """ Constructor of the PLCOpenEditor class.

        :param parent: The parent window.
        :param fileOpen: The filepath to open if no controler defined (default: None).
        """
        self.icon = wx.Icon(os.path.join(beremiz_dir, "images", "poe.ico"), wx.BITMAP_TYPE_ICO)
        IDEFrame.__init__(self, parent)

        result = None

        # Open the filepath if defined
        if fileOpen is not None:
            fileOpen = DecodeFileSystemPath(fileOpen, False)
            if os.path.isfile(fileOpen):
                # Create a new controller
                controler = PLCControler()
                result = controler.OpenXMLFile(fileOpen)
                self.Controler = controler
                self.LibraryPanel.SetController(controler)
                self.ProjectTree.Enable(True)
                self.PouInstanceVariablesPanel.SetController(controler)
                self._Refresh(PROJECTTREE, POUINSTANCEVARIABLESPANEL, LIBRARYTREE)

        # Define PLCOpenEditor icon
        self.SetIcon(self.icon)

        self.Bind(wx.EVT_CLOSE, self.OnCloseFrame)

        self._Refresh(TITLE, EDITORTOOLBAR, FILEMENU, EDITMENU, DISPLAYMENU)

        if result is not None:
            (num, line) = result
            self.ShowErrorMessage(_("PLC syntax error at line {a1}:\n{a2}").format(a1=num, a2=line))

    def OnCloseFrame(self, event):
        if self.Controler is None or self.CheckSaveBeforeClosing(_("Close Application")):
            self.AUIManager.UnInit()

            self.SaveLastState()

            event.Skip()
        else:
            event.Veto()

    def RefreshTitle(self):
        name = _("PLCOpenEditor")
        if self.Controler is not None:
            self.SetTitle("%s - %s" % (name, self.Controler.GetFilename()))
        else:
            self.SetTitle(name)

    # -------------------------------------------------------------------------------
    #                            File Menu Functions
    # -------------------------------------------------------------------------------

    def RefreshFileMenu(self):
        MenuToolBar = self.Panes["MenuToolBar"]
        if self.Controler is not None:
            selected = self.TabsOpened.GetSelection()
            if selected >= 0:
                graphic_viewer = isinstance(self.TabsOpened.GetPage(selected), Viewer)
            else:
                graphic_viewer = False
            if self.TabsOpened.GetPageCount() > 0:
                self.FileMenu.Enable(wx.ID_CLOSE, True)
                if graphic_viewer:
                    self.FileMenu.Enable(wx.ID_PREVIEW, True)
                    self.FileMenu.Enable(wx.ID_PRINT, True)
                    MenuToolBar.EnableTool(wx.ID_PRINT, True)
                else:
                    self.FileMenu.Enable(wx.ID_PREVIEW, False)
                    self.FileMenu.Enable(wx.ID_PRINT, False)
                    MenuToolBar.EnableTool(wx.ID_PRINT, False)
            else:
                self.FileMenu.Enable(wx.ID_CLOSE, False)
                self.FileMenu.Enable(wx.ID_PREVIEW, False)
                self.FileMenu.Enable(wx.ID_PRINT, False)
                MenuToolBar.EnableTool(wx.ID_PRINT, False)
            self.FileMenu.Enable(wx.ID_PAGE_SETUP, True)
            project_modified = not self.Controler.ProjectIsSaved()
            self.FileMenu.Enable(wx.ID_SAVE, project_modified)
            MenuToolBar.EnableTool(wx.ID_SAVE, project_modified)
            self.FileMenu.Enable(wx.ID_PROPERTIES, True)
            self.FileMenu.Enable(wx.ID_CLOSE_ALL, True)
            self.FileMenu.Enable(wx.ID_SAVEAS, True)
            MenuToolBar.EnableTool(wx.ID_SAVEAS, True)
            self.FileMenu.Enable(ID_PLCOPENEDITORFILEMENUGENERATE, True)
        else:
            self.FileMenu.Enable(wx.ID_CLOSE, False)
            self.FileMenu.Enable(wx.ID_PAGE_SETUP, False)
            self.FileMenu.Enable(wx.ID_PREVIEW, False)
            self.FileMenu.Enable(wx.ID_PRINT, False)
            MenuToolBar.EnableTool(wx.ID_PRINT, False)
            self.FileMenu.Enable(wx.ID_SAVE, False)
            MenuToolBar.EnableTool(wx.ID_SAVE, False)
            self.FileMenu.Enable(wx.ID_PROPERTIES, False)
            self.FileMenu.Enable(wx.ID_CLOSE_ALL, False)
            self.FileMenu.Enable(wx.ID_SAVEAS, False)
            MenuToolBar.EnableTool(wx.ID_SAVEAS, False)
            self.FileMenu.Enable(ID_PLCOPENEDITORFILEMENUGENERATE, False)

    def OnNewProjectMenu(self, event):
        if self.Controler is not None and not self.CheckSaveBeforeClosing():
            return
        dialog = ProjectDialog(self)
        if dialog.ShowModal() == wx.ID_OK:
            properties = dialog.GetValues()
            self.ResetView()
            self.Controler = PLCControler()
            self.Controler.CreateNewProject(properties)
            self.LibraryPanel.SetController(self.Controler)
            self.ProjectTree.Enable(True)
            self._Refresh(TITLE, FILEMENU, EDITMENU, PROJECTTREE, POUINSTANCEVARIABLESPANEL,
                          LIBRARYTREE)

    def OnOpenProjectMenu(self, event):
        if self.Controler is not None and not self.CheckSaveBeforeClosing():
            return
        filepath = ""
        if self.Controler is not None:
            filepath = self.Controler.GetFilePath()
        if filepath != "":
            directory = os.path.dirname(filepath)
        else:
            directory = os.getcwd()

        result = None

        dialog = wx.FileDialog(self, _("Choose a file"), directory, "",  _("PLCOpen files (*.xml)|*.xml|All files|*.*"), wx.OPEN)
        if dialog.ShowModal() == wx.ID_OK:
            filepath = dialog.GetPath()
            if os.path.isfile(filepath):
                self.ResetView()
                controler = PLCControler()
                result = controler.OpenXMLFile(filepath)
                self.Controler = controler
                self.LibraryPanel.SetController(controler)
                self.ProjectTree.Enable(True)
                self.PouInstanceVariablesPanel.SetController(controler)
                self._Refresh(PROJECTTREE, LIBRARYTREE)
            self._Refresh(TITLE, EDITORTOOLBAR, FILEMENU, EDITMENU)
        dialog.Destroy()

        if result is not None:
            (num, line) = result
            self.ShowErrorMessage(_("PLC syntax error at line {a1}:\n{a2}").format(a1=num, a2=line))

    def OnCloseProjectMenu(self, event):
        if not self.CheckSaveBeforeClosing():
            return
        self.ResetView()
        self._Refresh(TITLE, EDITORTOOLBAR, FILEMENU, EDITMENU)

    def OnSaveProjectMenu(self, event):
        self.SaveProject()

    def OnSaveProjectAsMenu(self, event):
        self.SaveProjectAs()

    def OnGenerateProgramMenu(self, event):
        dialog = wx.FileDialog(self, _("Choose a file"), os.getcwd(), self.Controler.GetProgramFilePath(),  _("ST files (*.st)|*.st|All files|*.*"), wx.SAVE | wx.CHANGE_DIR)
        if dialog.ShowModal() == wx.ID_OK:
            filepath = dialog.GetPath()
            message_text = ""
            header, icon = _("Done"), wx.ICON_INFORMATION
            if os.path.isdir(os.path.dirname(filepath)):
                program, errors, warnings = self.Controler.GenerateProgram(filepath)
                message_text += "".join([_("warning: %s\n") % warning for warning in warnings])
                if len(errors) > 0:
                    message_text += "".join([_("error: %s\n") % error for error in errors])
                    message_text += _("Can't generate program to file %s!") % filepath
                    header, icon = _("Error"), wx.ICON_ERROR
                else:
                    message_text += _("Program was successfully generated!")
            else:
                message_text += _("\"%s\" is not a valid folder!") % os.path.dirname(filepath)
                header, icon = _("Error"), wx.ICON_ERROR
            message = wx.MessageDialog(self, message_text, header, wx.OK | icon)
            message.ShowModal()
            message.Destroy()
        dialog.Destroy()

    def OnPLCOpenEditorMenu(self, event):
        wx.MessageBox(_("No documentation available.\nComing soon."))

    def OnPLCOpenMenu(self, event):
        open_pdf(os.path.join(beremiz_dir, "plcopen", "TC6_XML_V101.pdf"))

    def OnAboutMenu(self, event):
        info = version.GetAboutDialogInfo()
        info.Name = "PLCOpenEditor"
        info.Description = _("PLCOpenEditor is part of Beremiz project.\n\n"
                             "Beremiz is an ") + info.Description
        info.Icon = wx.Icon(os.path.join(beremiz_dir, "images", "aboutlogo.png"), wx.BITMAP_TYPE_PNG)
        ShowAboutDialog(self, info)

    def SaveProject(self):
        result = self.Controler.SaveXMLFile()
        if not result:
            self.SaveProjectAs()
        else:
            self._Refresh(TITLE, FILEMENU, PAGETITLES)

    def SaveProjectAs(self):
        filepath = self.Controler.GetFilePath()
        if filepath != "":
            directory, filename = os.path.split(filepath)
        else:
            directory, filename = os.getcwd(), "%(projectName)s.xml" % self.Controler.GetProjectProperties()
        dialog = wx.FileDialog(self, _("Choose a file"), directory, filename,  _("PLCOpen files (*.xml)|*.xml|All files|*.*"), wx.SAVE | wx.OVERWRITE_PROMPT)
        if dialog.ShowModal() == wx.ID_OK:
            filepath = dialog.GetPath()
            if os.path.isdir(os.path.dirname(filepath)):
                result = self.Controler.SaveXMLFile(filepath)
                if not result:
                    self.ShowErrorMessage(_("Can't save project to file %s!") % filepath)
            else:
                self.ShowErrorMessage(_("\"%s\" is not a valid folder!") % os.path.dirname(filepath))
            self._Refresh(TITLE, FILEMENU, PAGETITLES)
        dialog.Destroy()


if __name__ == '__main__':
    if wx.VERSION < (3, 0, 0):
        wx.InitAllImageHandlers()

    # Install a exception handle for bug reports
    util.ExceptionHandler.AddExceptHook(version.app_version)

    frame = PLCOpenEditor(None, fileOpen=fileOpen)

    frame.Show()
    app.MainLoop()