1 #!/usr/bin/env python

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

     3 

     4 # This file is part of Beremiz

     5 # Copyright (C) 2019: Edouard TISSERANT

     6 #

     7 # See COPYING file for copyrights details.

     8 

     9 from __future__ import absolute_import

    10 import os

    11 import shutil

    12 

    13 import wx

    14 

    15 import util.paths as paths

    16 from POULibrary import POULibrary

    17 from docutil import open_svg

    18 

    19 

    20 class SVGHMILibrary(POULibrary):

    21     def GetLibraryPath(self):

    22         return paths.AbsNeighbourFile(__file__, "pous.xml")

    23 

    24 

    25 class SVGHMI(object):

    26     XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>

    27     <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

    28       <xsd:element name="SVGHMI">

    29         <xsd:complexType>

    30           <xsd:attribute name="enableHTTP" type="xsd:boolean" use="optional" default="false"/>

    31           <xsd:attribute name="bindAddress" type="xsd:string" use="optional" default="localhost"/>

    32           <xsd:attribute name="port" type="xsd:string" use="optional" default="8080"/>

    33         </xsd:complexType>

    34       </xsd:element>

    35     </xsd:schema>

    36     """

    37 

    38     ConfNodeMethods = [

    39         {

    40             "bitmap":    "ImportSVG",

    41             "name":    _("Import SVG"),

    42             "tooltip": _("Import SVG"),

    43             "method":   "_ImportSVG"

    44         },

    45         {

    46             "bitmap":    "ImportSVG",  # should be something different

    47             "name":    _("Inkscape"),

    48             "tooltip": _("Edit HMI"),

    49             "method":   "_StartInkscape"

    50         },

    51     ]

    52 

    53     def _getSVGpath(self, project_path=None):

    54         if project_path is None:

    55             project_path = self.CTNPath()

    56         # define name for SVG file containing gui layout

    57         return os.path.join(project_path, "gui.svg")

    58 

    59 

    60     def OnCTNSave(self, from_project_path=None):

    61         if from_project_path is not None:

    62             shutil.copyfile(self._getSVGpath(from_project_path),

    63                             self._getSVGpath())

    64         return PythonFileCTNMixin.OnCTNSave(self, from_project_path)

    65 

    66     def CTNGenerate_C(self, buildpath, locations):

    67         """

    68         Return C code generated by iec2c compiler

    69         when _generate_softPLC have been called

    70         @param locations: ignored

    71         @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND

    72         """

    73 

    74         # TODO : get variable list from Controller

    75         # self.GetCTRoot().blah

    76         # TODO deduce HMI tree

    77 

    78         svgfile = self._getSVGpath()

    79         if os.path.exists(svgfile):

    80             # TODO : call xslt transform on Inkscape's SVG to generate

    81             #   - Errors on HMI semantics

    82             #   - Target XHTML as a DOM

    83             #   - ... maybe something to have a global view of what is declared in SVG.

    84             pass

    85         else:

    86             # TODO : use default svg that expose the HMI tree as-is 

    87             pass

    88 

    89 

    90         res = ([], "", False)

    91 

    92         targetpath = os.path.join(self._getBuildPath(), "target.xhtml")

    93         targetfile = open(targetpath, 'w')

    94 

    95         # TODO : DOM to string

    96         targetfile.write("TODO")

    97         targetfile.close()

    98         res += (("target.js", open(targetpath, "rb")),)

    99 

   100         # TODO add C code to expose HMI tree variables to shared memory

   101         # TODO generate a description of shared memory (xml or CSV) 

   102         #      that can be loaded by svghmi QTWeb* app or svghmi server

   103 

   104 

   105         return res

   106 

   107     def _ImportSVG(self):

   108         dialog = wx.FileDialog(self.GetCTRoot().AppFrame, _("Choose a SVG file"), os.getcwd(), "",  _("SVG files (*.svg)|*.svg|All files|*.*"), wx.OPEN)

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

   110             svgpath = dialog.GetPath()

   111             if os.path.isfile(svgpath):

   112                 shutil.copy(svgpath, self._getSVGpath())

   113             else:

   114                 self.GetCTRoot().logger.write_error(_("No such SVG file: %s\n") % svgpath)

   115         dialog.Destroy()

   116 

   117     def _StartInkscape(self):

   118         svgfile = self._getSVGpath()

   119         open_inkscape = True

   120         if not self.GetCTRoot().CheckProjectPathPerm():

   121             dialog = wx.MessageDialog(self.GetCTRoot().AppFrame,

   122                                       _("You don't have write permissions.\nOpen Inkscape anyway ?"),

   123                                       _("Open Inkscape"),

   124                                       wx.YES_NO | wx.ICON_QUESTION)

   125             open_inkscape = dialog.ShowModal() == wx.ID_YES

   126             dialog.Destroy()

   127         if open_inkscape:

   128             if not os.path.isfile(svgfile):

   129                 svgfile = None

   130             open_svg(svgfile)