1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8

#

     9

# See COPYING file for copyrights details.

    10

#

    11

# This program is free software; you can redistribute it and/or

    12

# modify it under the terms of the GNU General Public License

    13

# as published by the Free Software Foundation; either version 2

    14

# of the License, or (at your option) any later version.

    15

#

    16

# This program is distributed in the hope that it will be useful,

    17

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    18

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    19

# GNU General Public License for more details.

    20

#

    21

# You should have received a copy of the GNU General Public License

    22

# along with this program; if not, write to the Free Software

    23

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    24

    25

import re

    26

from types import *

    27

    28

import wx

    29

import wx.stc

    30

    31

from graphics.GraphicCommons import ERROR_HIGHLIGHT, SEARCH_RESULT_HIGHLIGHT, REFRESH_HIGHLIGHT_PERIOD

    32

from plcopen.structures import ST_BLOCK_START_KEYWORDS, ST_BLOCK_END_KEYWORDS, IEC_BLOCK_START_KEYWORDS, IEC_BLOCK_END_KEYWORDS, LOCATIONDATATYPES

    33

from EditorPanel import EditorPanel

    34

from controls.CustomStyledTextCtrl import CustomStyledTextCtrl, faces, GetCursorPos, NAVIGATION_KEYS

    35

    36

#-------------------------------------------------------------------------------

    37

#                         Textual programs Viewer class

    38

#-------------------------------------------------------------------------------

    39

    40

    41

NEWLINE = "\n"

    42

NUMBERS = [str(i) for i in xrange(10)]

    43

LETTERS = ['_']

    44

for i in xrange(26):

    45

    LETTERS.append(chr(ord('a') + i))

    46

    LETTERS.append(chr(ord('A') + i))

    47

    48

[STC_PLC_WORD, STC_PLC_COMMENT, STC_PLC_NUMBER, STC_PLC_STRING,

    49

 STC_PLC_VARIABLE, STC_PLC_PARAMETER, STC_PLC_FUNCTION, STC_PLC_JUMP,

    50

 STC_PLC_ERROR, STC_PLC_SEARCH_RESULT,

    51

 STC_PLC_EMPTY] = range(11)

    52

[SPACE, WORD, NUMBER, STRING, WSTRING, COMMENT, PRAGMA, DPRAGMA] = range(8)

    53

    54

[ID_TEXTVIEWER, ID_TEXTVIEWERTEXTCTRL,

    55

] = [wx.NewId() for _init_ctrls in range(2)]

    56

    57

re_texts = {}

    58

re_texts["letter"] = "[A-Za-z]"

    59

re_texts["digit"] = "[0-9]"

    60

re_texts["identifier"] = "((?:%(letter)s|(?:_(?:%(letter)s|%(digit)s)))(?:_?(?:%(letter)s|%(digit)s))*)"%re_texts

    61

IDENTIFIER_MODEL = re.compile(re_texts["identifier"])

    62

LABEL_MODEL = re.compile("[ \t\n]%(identifier)s:[ \t\n]"%re_texts)

    63

EXTENSIBLE_PARAMETER = re.compile("IN[1-9][0-9]*$")

    64

    65

HIGHLIGHT_TYPES = {

    66

    ERROR_HIGHLIGHT: STC_PLC_ERROR,

    67

    SEARCH_RESULT_HIGHLIGHT: STC_PLC_SEARCH_RESULT,

    68

}

    69

    70

def LineStartswith(line, symbols):

    71

    return reduce(lambda x, y: x or y, map(lambda x: line.startswith(x), symbols), False)

    72

    73

class TextViewer(EditorPanel):

    74

    75

    ID = ID_TEXTVIEWER

    76

    77

    if wx.VERSION < (2, 6, 0):

    78

        def Bind(self, event, function, id = None):

    79

            if id is not None:

    80

                event(self, id, function)

    81

            else:

    82

                event(self, function)

    83

    84

    def _init_Editor(self, prnt):

    85

        self.Editor = CustomStyledTextCtrl(id=ID_TEXTVIEWERTEXTCTRL,

    86

                parent=prnt, name="TextViewer", size=wx.Size(0, 0), style=0)

    87

        self.Editor.ParentWindow = self

    88

    89

        self.Editor.CmdKeyAssign(ord('+'), wx.stc.STC_SCMOD_CTRL, wx.stc.STC_CMD_ZOOMIN)

    90

        self.Editor.CmdKeyAssign(ord('-'), wx.stc.STC_SCMOD_CTRL, wx.stc.STC_CMD_ZOOMOUT)

    91

    92

        self.Editor.SetViewWhiteSpace(False)

    93

    94

        self.Editor.SetLexer(wx.stc.STC_LEX_CONTAINER)

    95

    96

        # Global default styles for all languages

    97

        self.Editor.StyleSetSpec(wx.stc.STC_STYLE_DEFAULT, "face:%(mono)s,size:%(size)d" % faces)

    98

        self.Editor.StyleClearAll()  # Reset all to be like the default

    99

   100

        self.Editor.StyleSetSpec(wx.stc.STC_STYLE_LINENUMBER,  "back:#C0C0C0,size:%(size)d" % faces)

   101

        self.Editor.SetSelBackground(1, "#E0E0E0")

   102

   103

        # Highlighting styles

   104

        self.Editor.StyleSetSpec(STC_PLC_WORD, "fore:#00007F,bold,size:%(size)d" % faces)

   105

        self.Editor.StyleSetSpec(STC_PLC_VARIABLE, "fore:#7F0000,size:%(size)d" % faces)

   106

        self.Editor.StyleSetSpec(STC_PLC_PARAMETER, "fore:#7F007F,size:%(size)d" % faces)

   107

        self.Editor.StyleSetSpec(STC_PLC_FUNCTION, "fore:#7F7F00,size:%(size)d" % faces)

   108

        self.Editor.StyleSetSpec(STC_PLC_COMMENT, "fore:#7F7F7F,size:%(size)d" % faces)

   109

        self.Editor.StyleSetSpec(STC_PLC_NUMBER, "fore:#007F7F,size:%(size)d" % faces)

   110

        self.Editor.StyleSetSpec(STC_PLC_STRING, "fore:#007F00,size:%(size)d" % faces)

   111

        self.Editor.StyleSetSpec(STC_PLC_JUMP, "fore:#FF7FFF,size:%(size)d" % faces)

   112

        self.Editor.StyleSetSpec(STC_PLC_ERROR, "fore:#FF0000,back:#FFFF00,size:%(size)d" % faces)

   113

        self.Editor.StyleSetSpec(STC_PLC_SEARCH_RESULT, "fore:#FFFFFF,back:#FFA500,size:%(size)d" % faces)

   114

   115

        # Indicators styles

   116

        self.Editor.IndicatorSetStyle(0, wx.stc.STC_INDIC_SQUIGGLE)

   117

        if self.ParentWindow is not None and self.Controler is not None:

   118

            self.Editor.IndicatorSetForeground(0, wx.RED)

   119

        else:

   120

            self.Editor.IndicatorSetForeground(0, wx.WHITE)

   121

   122

        # Line numbers in the margin

   123

        self.Editor.SetMarginType(1, wx.stc.STC_MARGIN_NUMBER)

   124

        self.Editor.SetMarginWidth(1, 50)

   125

   126

        # Folding

   127

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDEROPEN,    wx.stc.STC_MARK_BOXMINUS,          "white", "#808080")

   128

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDER,        wx.stc.STC_MARK_BOXPLUS,           "white", "#808080")

   129

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDERSUB,     wx.stc.STC_MARK_VLINE,             "white", "#808080")

   130

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDERTAIL,    wx.stc.STC_MARK_LCORNER,           "white", "#808080")

   131

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDEREND,     wx.stc.STC_MARK_BOXPLUSCONNECTED,  "white", "#808080")

   132

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDEROPENMID, wx.stc.STC_MARK_BOXMINUSCONNECTED, "white", "#808080")

   133

        self.Editor.MarkerDefine(wx.stc.STC_MARKNUM_FOLDERMIDTAIL, wx.stc.STC_MARK_TCORNER,           "white", "#808080")

   134

   135

        # Indentation size

   136

        self.Editor.SetTabWidth(2)

   137

        self.Editor.SetUseTabs(0)

   138

   139

        self.Editor.SetModEventMask(wx.stc.STC_MOD_BEFOREINSERT|

   140

                                    wx.stc.STC_MOD_BEFOREDELETE|

   141

                                    wx.stc.STC_PERFORMED_USER)

   142

   143

        self.Bind(wx.stc.EVT_STC_STYLENEEDED, self.OnStyleNeeded, id=ID_TEXTVIEWERTEXTCTRL)

   144

        self.Editor.Bind(wx.stc.EVT_STC_MARGINCLICK, self.OnMarginClick)

   145

        self.Editor.Bind(wx.stc.EVT_STC_UPDATEUI, self.OnUpdateUI)

   146

        self.Editor.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)

   147

        if self.Controler is not None:

   148

            self.Editor.Bind(wx.EVT_KILL_FOCUS, self.OnKillFocus)

   149

            self.Bind(wx.stc.EVT_STC_DO_DROP, self.OnDoDrop, id=ID_TEXTVIEWERTEXTCTRL)

   150

            self.Bind(wx.stc.EVT_STC_MODIFIED, self.OnModification, id=ID_TEXTVIEWERTEXTCTRL)

   151

   152

    def __init__(self, parent, tagname, window, controler, debug = False, instancepath = ""):

   153

        if tagname != "" and controler is not None:

   154

            self.VARIABLE_PANEL_TYPE = controler.GetPouType(tagname.split("::")[1])

   155

   156

        EditorPanel.__init__(self, parent, tagname, window, controler, debug)

   157

   158

        self.Keywords = []

   159

        self.Variables = {}

   160

        self.Functions = {}

   161

        self.TypeNames = []

   162

        self.Jumps = []

   163

        self.EnumeratedValues = []

   164

        self.DisableEvents = True

   165

        self.TextSyntax = None

   166

        self.CurrentAction = None

   167

   168

        self.InstancePath = instancepath

   169

        self.ContextStack = []

   170

        self.CallStack = []

   171

   172

        self.ResetSearchResults()

   173

   174

        self.RefreshHighlightsTimer = wx.Timer(self, -1)

   175

        self.Bind(wx.EVT_TIMER, self.OnRefreshHighlightsTimer, self.RefreshHighlightsTimer)

   176

   177

    def __del__(self):

   178

        self.RefreshHighlightsTimer.Stop()

   179

   180

    def GetTitle(self):

   181

        if self.Debug or self.TagName == "":

   182

            if len(self.InstancePath) > 15:

   183

                return "..." + self.InstancePath[-12:]

   184

            return self.InstancePath

   185

        return EditorPanel.GetTitle(self)

   186

   187

    def GetInstancePath(self):

   188

        return self.InstancePath

   189

   190

    def IsViewing(self, tagname):

   191

        if self.Debug or self.TagName == "":

   192

            return self.InstancePath == tagname

   193

        else:

   194

            return self.TagName == tagname

   195

   196

    def GetText(self):

   197

        return self.Editor.GetText()

   198

   199

    def SetText(self, text):

   200

        self.Editor.SetText(text)

   201

   202

    def SelectAll(self):

   203

        self.Editor.SelectAll()

   204

   205

    def Colourise(self, start, end):

   206

        self.Editor.Colourise(start, end)

   207

   208

    def StartStyling(self, pos, mask):

   209

        self.Editor.StartStyling(pos, mask)

   210

   211

    def SetStyling(self, length, style):

   212

        self.Editor.SetStyling(length, style)

   213

   214

    def GetCurrentPos(self):

   215

        return self.Editor.GetCurrentPos()

   216

   217

    def ResetSearchResults(self):

   218

        self.Highlights = []

   219

        self.SearchParams = None

   220

        self.SearchResults = None

   221

        self.CurrentFindHighlight = None

   222

   223

    def OnModification(self, event):

   224

        if not self.DisableEvents:

   225

            mod_type = event.GetModificationType()

   226

            if mod_type&wx.stc.STC_MOD_BEFOREINSERT:

   227

                if self.CurrentAction == None:

   228

                    self.StartBuffering()

   229

                elif self.CurrentAction[0] != "Add" or self.CurrentAction[1] != event.GetPosition() - 1:

   230

                    self.Controler.EndBuffering()

   231

                    self.StartBuffering()

   232

                self.CurrentAction = ("Add", event.GetPosition())

   233

                wx.CallAfter(self.RefreshModel)

   234

            elif mod_type&wx.stc.STC_MOD_BEFOREDELETE:

   235

                if self.CurrentAction == None:

   236

                    self.StartBuffering()

   237

                elif self.CurrentAction[0] != "Delete" or self.CurrentAction[1] != event.GetPosition() + 1:

   238

                    self.Controler.EndBuffering()

   239

                    self.StartBuffering()

   240

                self.CurrentAction = ("Delete", event.GetPosition())

   241

                wx.CallAfter(self.RefreshModel)

   242

        event.Skip()

   243

   244

    def OnDoDrop(self, event):

   245

        try:

   246

            values = eval(event.GetDragText())

   247

        except:

   248

            values = event.GetDragText()

   249

        if isinstance(values, tuple):

   250

            message = None

   251

            if values[1] in ["program", "debug"]:

   252

                event.SetDragText("")

   253

            elif values[1] in ["functionBlock", "function"]:

   254

                blocktype = values[0]

   255

                blockname = values[2]

   256

                if len(values) > 3:

   257

                    blockinputs = values[3]

   258

                else:

   259

                    blockinputs = None

   260

                if values[1] != "function":

   261

                    if blockname == "":

   262

                        dialog = wx.TextEntryDialog(self.ParentWindow, _("Block name"), _("Please enter a block name"), "", wx.OK|wx.CANCEL|wx.CENTRE)

   263

                        if dialog.ShowModal() == wx.ID_OK:

   264

                            blockname = dialog.GetValue()

   265

                        else:

   266

                            event.SetDragText("")                            

   267

                            return

   268

                        dialog.Destroy()

   269

                    if blockname.upper() in [name.upper() for name in self.Controler.GetProjectPouNames(self.Debug)]:

   270

                        message = _("\"%s\" pou already exists!")%blockname

   271

                    elif blockname.upper() in [name.upper() for name in self.Controler.GetEditedElementVariables(self.TagName, self.Debug)]:

   272

                        message = _("\"%s\" element for this pou already exists!")%blockname

   273

                    else:

   274

                        self.Controler.AddEditedElementPouVar(self.TagName, values[0], blockname)

   275

                        self.RefreshVariablePanel()

   276

                        self.RefreshVariableTree()

   277

                blockinfo = self.Controler.GetBlockType(blocktype, blockinputs, self.Debug)

   278

                hint = ',\n    '.join(

   279

                            [ " " + fctdecl[0]+" := (*"+fctdecl[1]+"*)" for fctdecl in blockinfo["inputs"]] +

   280

                            [ " " + fctdecl[0]+" => (*"+fctdecl[1]+"*)" for fctdecl in blockinfo["outputs"]])

   281

                if values[1] == "function":

   282

                    event.SetDragText(blocktype+"(\n    "+hint+")")

   283

                else:

   284

                    event.SetDragText(blockname+"(\n    "+hint+")")

   285

            elif values[1] == "location":

   286

                pou_name, pou_type = self.Controler.GetEditedElementType(self.TagName, self.Debug)

   287

                if len(values) > 2 and pou_type == "program":

   288

                    var_name = values[3]

   289

                    dlg = wx.TextEntryDialog(

   290

                        self.ParentWindow,

   291

                        _("Confirm or change variable name"),

   292

                        _('Variable Drop'), var_name)

   293

                    dlg.SetValue(var_name)

   294

                    var_name = dlg.GetValue() if dlg.ShowModal() == wx.ID_OK else None

   295

                    dlg.Destroy()

   296

                    if var_name is None:

   297

                        return

   298

                    elif var_name.upper() in [name.upper() for name in self.Controler.GetProjectPouNames(self.Debug)]:

   299

                        message = _("\"%s\" pou already exists!")%var_name

   300

                    elif var_name.upper() in [name.upper() for name in self.Controler.GetEditedElementVariables(self.TagName, self.Debug)]:

   301

                        message = _("\"%s\" element for this pou already exists!")%var_name

   302

                    else:

   303

                        location = values[0]

   304

                        if not location.startswith("%"):

   305

                            dialog = wx.SingleChoiceDialog(self.ParentWindow,

   306

                                  _("Select a variable class:"), _("Variable class"),

   307

                                  [_("Input"), _("Output"), _("Memory")],

   308

                                  wx.DEFAULT_DIALOG_STYLE|wx.OK|wx.CANCEL)

   309

                            if dialog.ShowModal() == wx.ID_OK:

   310

                                selected = dialog.GetSelection()

   311

                            else:

   312

                                selected = None

   313

                            dialog.Destroy()

   314

                            if selected is None:

   315

                                event.SetDragText("")

   316

                                return

   317

                            if selected == 0:

   318

                                location = "%I" + location

   319

                            elif selected == 1:

   320

                                location = "%Q" + location

   321

                            else:

   322

                                location = "%M" + location

   323

                        if values[2] is not None:

   324

                            var_type = values[2]

   325

                        else:

   326

                            var_type = LOCATIONDATATYPES.get(location[2], ["BOOL"])[0]

   327

                        self.Controler.AddEditedElementPouVar(self.TagName,

   328

                            var_type, var_name,

   329

                            location=location, description=values[4])

   330

                        self.RefreshVariablePanel()

   331

                        self.RefreshVariableTree()

   332

                        event.SetDragText(var_name)

   333

                else:

   334

                    event.SetDragText("")

   335

            elif values[1] == "NamedConstant":

   336

                pou_name, pou_type = self.Controler.GetEditedElementType(self.TagName, self.Debug)

   337

                if pou_type == "program":

   338

                    initval = values[0]

   339

                    var_name = values[3]

   340

                    dlg = wx.TextEntryDialog(

   341

                        self.ParentWindow,

   342

                        _("Confirm or change variable name"),

   343

                        _('Variable Drop'), var_name)

   344

                    dlg.SetValue(var_name)

   345

                    var_name = dlg.GetValue() if dlg.ShowModal() == wx.ID_OK else None

   346

                    dlg.Destroy()

   347

                    if var_name is None:

   348

                        return

   349

                    elif var_name.upper() in [name.upper() for name in self.Controler.GetProjectPouNames(self.Debug)]:

   350

                        message = _("\"%s\" pou already exists!")%var_name

   351

                    else:

   352

                        var_type = values[2]

   353

                        if not var_name.upper() in [name.upper() for name in self.Controler.GetEditedElementVariables(self.TagName, self.Debug)]:

   354

                            self.Controler.AddEditedElementPouVar(self.TagName,

   355

                                                                  var_type,

   356

                                                                  var_name,

   357

                                                                  description=values[4], initval=initval)

   358

                            self.RefreshVariablePanel()

   359

                            self.RefreshVariableTree()

   360

                        event.SetDragText(var_name)

   361

            elif values[1] == "Global":

   362

                var_name = values[0]

   363

                dlg = wx.TextEntryDialog(

   364

                    self.ParentWindow,

   365

                    _("Confirm or change variable name"),

   366

                    _('Variable Drop'), var_name)

   367

                dlg.SetValue(var_name)

   368

                var_name = dlg.GetValue() if dlg.ShowModal() == wx.ID_OK else None

   369

                dlg.Destroy()

   370

                if var_name is None:

   371

                    return

   372

                elif var_name.upper() in [name.upper() for name in self.Controler.GetProjectPouNames(self.Debug)]:

   373

                    message = _("\"%s\" pou already exists!")%var_name

   374

                else:

   375

                    if not var_name.upper() in [name.upper() for name in self.Controler.GetEditedElementVariables(self.TagName, self.Debug)]:

   376

                        self.Controler.AddEditedElementPouExternalVar(self.TagName, values[2], var_name)

   377

                        self.RefreshVariablePanel()

   378

                        self.RefreshVariableTree()

   379

                    event.SetDragText(var_name)

   380

            elif values[1] == "Constant":

   381

                event.SetDragText(values[0])

   382

            elif values[3] == self.TagName:

   383

                self.ResetBuffer()

   384

                event.SetDragText(values[0])

   385

                wx.CallAfter(self.RefreshModel)

   386

            else:

   387

                message = _("Variable don't belong to this POU!")

   388

            if message is not None:

   389

                dialog = wx.MessageDialog(self, message, _("Error"), wx.OK|wx.ICON_ERROR)

   390

                dialog.ShowModal()

   391

                dialog.Destroy()

   392

                event.SetDragText("")

   393

        event.Skip()

   394

   395

    def SetTextSyntax(self, syntax):

   396

        self.TextSyntax = syntax

   397

        if syntax in ["ST", "ALL"]:

   398

            self.Editor.SetMarginType(2, wx.stc.STC_MARGIN_SYMBOL)

   399

            self.Editor.SetMarginMask(2, wx.stc.STC_MASK_FOLDERS)

   400

            self.Editor.SetMarginSensitive(2, 1)

   401

            self.Editor.SetMarginWidth(2, 12)

   402

            if syntax == "ST":

   403

                self.BlockStartKeywords = ST_BLOCK_START_KEYWORDS

   404

                self.BlockEndKeywords = ST_BLOCK_START_KEYWORDS

   405

            else:

   406

                self.BlockStartKeywords = IEC_BLOCK_START_KEYWORDS

   407

                self.BlockEndKeywords = IEC_BLOCK_START_KEYWORDS

   408

        else:

   409

            self.BlockStartKeywords = []

   410

            self.BlockEndKeywords = []

   411

   412

    def SetKeywords(self, keywords):

   413

        self.Keywords = [keyword.upper() for keyword in keywords]

   414

        self.Colourise(0, -1)

   415

   416

    def RefreshJumpList(self):

   417

        if self.TextSyntax != "IL":

   418

            self.Jumps = [jump.upper() for jump in LABEL_MODEL.findall(self.GetText())]

   419

            self.Colourise(0, -1)

   420

   421

    # Buffer the last model state

   422

    def RefreshBuffer(self):

   423

        self.Controler.BufferProject()

   424

        if self.ParentWindow:

   425

            self.ParentWindow.RefreshTitle()

   426

            self.ParentWindow.RefreshFileMenu()

   427

            self.ParentWindow.RefreshEditMenu()

   428

   429

    def StartBuffering(self):

   430

        self.Controler.StartBuffering()

   431

        if self.ParentWindow:

   432

            self.ParentWindow.RefreshTitle()

   433

            self.ParentWindow.RefreshFileMenu()

   434

            self.ParentWindow.RefreshEditMenu()

   435

   436

    def ResetBuffer(self):

   437

        if self.CurrentAction != None:

   438

            self.Controler.EndBuffering()

   439

            self.CurrentAction = None

   440

   441

    def GetBufferState(self):

   442

        if not self.Debug and self.TextSyntax != "ALL":

   443

            return self.Controler.GetBufferState()

   444

        return False, False

   445

   446

    def Undo(self):

   447

        if not self.Debug and self.TextSyntax != "ALL":

   448

            self.Controler.LoadPrevious()

   449

            self.ParentWindow.CloseTabsWithoutModel()

   450

   451

    def Redo(self):

   452

        if not self.Debug and self.TextSyntax != "ALL":

   453

            self.Controler.LoadNext()

   454

            self.ParentWindow.CloseTabsWithoutModel()

   455

   456

    def HasNoModel(self):

   457

        if not self.Debug and self.TextSyntax != "ALL":

   458

            return self.Controler.GetEditedElement(self.TagName) is None

   459

        return False

   460

   461

    def RefreshView(self, variablepanel=True):

   462

        EditorPanel.RefreshView(self, variablepanel)

   463

   464

        if self.Controler is not None:

   465

            self.ResetBuffer()

   466

            self.DisableEvents = True

   467

            old_cursor_pos = self.GetCurrentPos()

   468

            line = self.Editor.GetFirstVisibleLine()

   469

            column = self.Editor.GetXOffset()

   470

            old_text = self.GetText()

   471

            new_text = self.Controler.GetEditedElementText(self.TagName, self.Debug)

   472

            if old_text != new_text:

   473

                self.SetText(new_text)

   474

                new_cursor_pos = GetCursorPos(old_text, new_text)

   475

                self.Editor.LineScroll(column, line)

   476

                if new_cursor_pos != None:

   477

                    self.Editor.GotoPos(new_cursor_pos)

   478

                else:

   479

                    self.Editor.GotoPos(old_cursor_pos)

   480

                self.RefreshJumpList()

   481

                self.Editor.EmptyUndoBuffer()

   482

            self.DisableEvents = False

   483

   484

            self.RefreshVariableTree()

   485

   486

            self.TypeNames = [typename.upper() for typename in self.Controler.GetDataTypes(self.TagName, True, self.Debug)]

   487

            self.EnumeratedValues = [value.upper() for value in self.Controler.GetEnumeratedDataValues()]

   488

   489

            self.Functions = {}

   490

            for category in self.Controler.GetBlockTypes(self.TagName, self.Debug):

   491

                for blocktype in category["list"]:

   492

                    blockname = blocktype["name"].upper()

   493

                    if blocktype["type"] == "function" and blockname not in self.Keywords and blockname not in self.Variables.keys():

   494

                        interface = dict([(name, {}) for name, type, modifier in blocktype["inputs"] + blocktype["outputs"] if name != ''])

   495

                        for param in ["EN", "ENO"]:

   496

                            if not interface.has_key(param):

   497

                                interface[param] = {}

   498

                        if self.Functions.has_key(blockname):

   499

                            self.Functions[blockname]["interface"].update(interface)

   500

                            self.Functions[blockname]["extensible"] |= blocktype["extensible"]

   501

                        else:

   502

                            self.Functions[blockname] = {"interface": interface,

   503

                                                         "extensible": blocktype["extensible"]}

   504

   505

        self.Colourise(0, -1)

   506

   507

    def RefreshVariableTree(self):

   508

        words = self.TagName.split("::")