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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
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#based on the plcopen standard.
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#
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#Copyright (C): Edouard TISSERANT and Laurent BESSARD
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#
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#See COPYING file for copyrights details.
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#
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#This library is free software; you can redistribute it and/or
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#modify it under the terms of the GNU General Public
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#License as published by the Free Software Foundation; either
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#version 2.1 of the License, or (at your option) any later version.
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#
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#This library 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 GNU
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#Lesser 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
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#License along with this library; if not, write to the Free Software
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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from wxPython.wx import *
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from wxPython.stc import *
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import wx
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import re
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#-------------------------------------------------------------------------------
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# Textual programs Viewer class
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#-------------------------------------------------------------------------------
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NEWLINE = "\n"
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NUMBERS = [str(i) for i in xrange(10)]
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LETTERS = ['_']
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for i in xrange(26):
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LETTERS.append(chr(ord('a') + i))
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LETTERS.append(chr(ord('A') + i))
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[wxSTC_PLC_WORD, wxSTC_PLC_COMMENT, wxSTC_PLC_NUMBER, wxSTC_PLC_VARIABLE,
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wxSTC_PLC_FUNCTION, wxSTC_PLC_JUMP] = range(6)
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[SPACE, WORD, NUMBER, COMMENT] = range(4)
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[wxID_TEXTVIEWER,
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] = [wx.NewId() for _init_ctrls in range(1)]
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if wx.Platform == '__WXMSW__':
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faces = { 'times': 'Times New Roman',
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'mono' : 'Courier New',
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'helv' : 'Arial',
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'other': 'Comic Sans MS',
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'size' : 10,
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}
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else:
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faces = { 'times': 'Times',
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'mono' : 'Courier',
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'helv' : 'Helvetica',
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'other': 'new century schoolbook',
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'size' : 12,
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}
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re_texts = {}
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re_texts["letter"] = "[A-Za-z]"
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re_texts["digit"] = "[0-9]"
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re_texts["identifier"] = "((?:%(letter)s|(?:_(?:%(letter)s|%(digit)s)))(?:_?(?:%(letter)s|%(digit)s))*)"%re_texts
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IDENTIFIER_MODEL = re.compile(re_texts["identifier"])
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LABEL_MODEL = re.compile("[ \t\n]%(identifier)s:[ \t\n]"%re_texts)
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class TextViewer(wxStyledTextCtrl):
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def __init__(self, parent, window, controler):
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wxStyledTextCtrl.__init__(self, parent, wxID_TEXTVIEWER, style=0)
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self.CmdKeyAssign(ord('+'), wxSTC_SCMOD_CTRL, wxSTC_CMD_ZOOMIN)
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self.CmdKeyAssign(ord('-'), wxSTC_SCMOD_CTRL, wxSTC_CMD_ZOOMOUT)
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self.SetViewWhiteSpace(False)
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self.SetLexer(wxSTC_LEX_CONTAINER)
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# Global default styles for all languages
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self.StyleSetSpec(wxSTC_STYLE_DEFAULT, "face:%(mono)s,size:%(size)d" % faces)
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self.StyleClearAll() # Reset all to be like the default
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self.StyleSetSpec(wxSTC_STYLE_LINENUMBER, "back:#C0C0C0,size:%(size)d" % faces)
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self.SetSelBackground(1, "#E0E0E0")
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# Highlighting styles
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self.StyleSetSpec(wxSTC_PLC_WORD, "fore:#00007F,bold,size:%(size)d" % faces)
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self.StyleSetSpec(wxSTC_PLC_VARIABLE, "fore:#7F0000,size:%(size)d" % faces)
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self.StyleSetSpec(wxSTC_PLC_FUNCTION, "fore:#7F7F00,size:%(size)d" % faces)
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self.StyleSetSpec(wxSTC_PLC_COMMENT, "fore:#7F7F7F,size:%(size)d" % faces)
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self.StyleSetSpec(wxSTC_PLC_NUMBER, "fore:#007F7F,size:%(size)d" % faces)
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self.StyleSetSpec(wxSTC_PLC_JUMP, "fore:#007F00,size:%(size)d" % faces)
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# Indicators styles
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self.IndicatorSetStyle(0, wxSTC_INDIC_SQUIGGLE)
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self.IndicatorSetForeground(0, wxRED)
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# Line numbers in the margin
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self.SetMarginType(1, wxSTC_MARGIN_NUMBER)
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self.SetMarginWidth(1, 50)
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# Indentation size
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self.SetTabWidth(2)
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self.SetUseTabs(0)
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self.Keywords = []
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self.Variables = []
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self.Functions = []
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self.Jumps = []
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self.TextChanged = False
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self.TextSyntax = "ST"
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self.Controler = controler
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EVT_KEY_DOWN(self, self.OnKeyDown)
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EVT_STC_STYLENEEDED(self, wxID_TEXTVIEWER, self.OnStyleNeeded)
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EVT_KILL_FOCUS(self, self.OnKillFocus)
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def SetTextSyntax(self, syntax):
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self.TextSyntax = syntax
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def SetKeywords(self, keywords):
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self.Keywords = [keyword.upper() for keyword in keywords]
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self.Colourise(0, -1)
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def SetVariables(self, variables):
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self.Variables = [variable.upper() for variable in variables]
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self.Colourise(0, -1)
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def SetFunctions(self, blocktypes):
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self.Functions = []
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for category in blocktypes:
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for blocktype in category["list"]:
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if blocktype["name"] not in self.Keywords and blocktype["name"] not in self.Variables:
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self.Functions.append(blocktype["name"].upper())
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self.Colourise(0, -1)
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def RefreshJumpList(self):
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self.Jumps = [jump.upper() for jump in LABEL_MODEL.findall(self.GetText())]
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self.Colourise(0, -1)
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def RefreshView(self):
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self.SetText(self.Controler.GetCurrentElementEditingText())
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self.RefreshJumpList()
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def OnStyleNeeded(self, event):
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self.TextChanged = True
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line = self.LineFromPosition(self.GetEndStyled())
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if line == 0:
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start_pos = 0
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else:
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start_pos = self.GetLineEndPosition(line - 1) + 1
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end_pos = event.GetPosition()
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self.StartStyling(start_pos, 0xff)
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i = start_pos
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state = SPACE
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line = ""
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word = ""
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while i < end_pos:
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char = chr(self.GetCharAt(i)).upper()
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line += char
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if char == NEWLINE:
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if state == COMMENT:
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self.SetStyling(i - start_pos + 1, wxSTC_PLC_COMMENT)
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elif state == NUMBER:
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self.SetStyling(i - start_pos, wxSTC_PLC_NUMBER)
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elif state == WORD:
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if word in self.Keywords:
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self.SetStyling(i - start_pos, wxSTC_PLC_WORD)
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elif word in self.Variables:
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self.SetStyling(i - start_pos, wxSTC_PLC_VARIABLE)
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elif word in self.Functions:
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self.SetStyling(i - start_pos, wxSTC_PLC_FUNCTION)
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elif word in self.Jumps:
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self.SetStyling(i - start_pos, wxSTC_PLC_JUMP)
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else:
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self.SetStyling(i - start_pos, 31)
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if self.GetCurrentPos() < start_pos or self.GetCurrentPos() > i:
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self.StartStyling(start_pos, wxSTC_INDICS_MASK)
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self.SetStyling(i - start_pos, wxSTC_INDIC0_MASK)
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self.StartStyling(i, 0xff)
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else:
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self.SetStyling(i - start_pos, 31)
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start_pos = i
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state = SPACE
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line = ""
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elif line.endswith("(*") and state != COMMENT:
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self.SetStyling(i - start_pos - 1, 31)
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start_pos = i
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state = COMMENT
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elif state == COMMENT:
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if line.endswith("*)"):
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self.SetStyling(i - start_pos + 2, wxSTC_PLC_COMMENT)
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start_pos = i + 1
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state = SPACE
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elif char in LETTERS:
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if state == NUMBER:
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word = "#"
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state = WORD
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elif state == SPACE:
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self.SetStyling(i - start_pos, 31)
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word = char
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start_pos = i
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state = WORD
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else:
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word += char
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elif char in NUMBERS or char == '.' and state != WORD:
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if state == SPACE:
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self.SetStyling(i - start_pos, 31)
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start_pos = i
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state = NUMBER
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if state == WORD and char != '.':
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word += char
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else:
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if state == WORD:
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if word in self.Keywords:
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self.SetStyling(i - start_pos, wxSTC_PLC_WORD)
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elif word in self.Variables:
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self.SetStyling(i - start_pos, wxSTC_PLC_VARIABLE)
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elif word in self.Functions:
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self.SetStyling(i - start_pos, wxSTC_PLC_FUNCTION)
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elif word in self.Jumps:
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self.SetStyling(i - start_pos, wxSTC_PLC_JUMP)
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else:
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self.SetStyling(i - start_pos, 31)
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if self.GetCurrentPos() < start_pos or self.GetCurrentPos() > i:
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self.StartStyling(start_pos, wxSTC_INDICS_MASK)
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self.SetStyling(i - start_pos, wxSTC_INDIC0_MASK)
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self.StartStyling(i, 0xff)
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word = ""
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start_pos = i
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state = SPACE
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elif state == NUMBER:
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self.SetStyling(i - start_pos, wxSTC_PLC_NUMBER)
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start_pos = i
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state = SPACE
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i += 1
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if state == COMMENT:
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self.SetStyling(i - start_pos + 2, wxSTC_PLC_COMMENT)
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elif state == NUMBER:
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self.SetStyling(i - start_pos, wxSTC_PLC_NUMBER)
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elif state == WORD:
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if word in self.Keywords:
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self.SetStyling(i - start_pos, wxSTC_PLC_WORD)
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elif word in self.Variables:
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self.SetStyling(i - start_pos, wxSTC_PLC_VARIABLE)
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elif word in self.Functions:
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self.SetStyling(i - start_pos, wxSTC_PLC_FUNCTION)
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elif word in self.Jumps:
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self.SetStyling(i - start_pos, wxSTC_PLC_JUMP)
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else:
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self.SetStyling(i - start_pos, 31)
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else:
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self.SetStyling(i - start_pos, 31)
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event.Skip()
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def Cut(self):
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self.CmdKeyExecute(wxSTC_CMD_CUT)
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def Copy(self):
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self.CmdKeyExecute(wxSTC_CMD_COPY)
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def Paste(self):
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self.CmdKeyExecute(wxSTC_CMD_PASTE)
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def RefreshModel(self):
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if self.TextChanged:
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self.RefreshJumpList()
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self.Controler.SetCurrentElementEditingText(self.GetText())
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def OnKeyDown(self, event):
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if self.CallTipActive():
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self.CallTipCancel()
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key = event.KeyCode()
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# Code completion
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if key == WXK_SPACE and event.ControlDown():
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line = self.GetCurrentLine()
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if line == 0:
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start_pos = 0
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else:
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start_pos = self.GetLineEndPosition(line - 1) + 1
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end_pos = self.GetCurrentPos()
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lineText = self.GetTextRange(start_pos, end_pos).replace("\t", " ")
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words = lineText.split(" ")
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words = [word for i, word in enumerate(words) if word != '' or i == len(words) - 1]
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kw = []
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if self.TextSyntax == "IL":
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if len(words) == 1:
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kw = self.Keywords
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elif len(words) == 2:
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if words[0].upper() in ["CAL", "CALC", "CALNC"]:
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kw = self.Functions
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elif words[0].upper() in ["JMP", "JMPC", "JMPNC"]:
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kw = self.Jumps
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else:
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kw = self.Variables
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else:
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kw = self.Keywords + self.Variables + self.Functions
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if len(kw) > 0:
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kw.sort()
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self.AutoCompSetIgnoreCase(True)
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self.AutoCompShow(len(words[-1]), " ".join(kw))
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else:
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self.TextChanged = False
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wxCallAfter(self.RefreshModel)
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event.Skip()
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def OnKillFocus(self, event):
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self.AutoCompCancel()
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event.Skip()
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