svgui/svgui.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Thu, 21 Feb 2019 10:17:38 +0300
changeset 2512 69cef4e37ef9
parent 2442 b13f021c68a5
child 2620 063391cd313d
permissions -rw-r--r--
Fix non-marking as manually forced floating point variable if the value isn't integer

For example, if user in debug variable panel set any floating point
variable to 34.3, then it's not shown as forced (blue color) and user
can't release this enforcement.

If user changes the value to 34.0, then enforcement shows
correctly. This is done because binary representation of floating point
numbers in IDE and runtime can be slightly different (double vs float)
and as a result values aren't equal.
#!/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.


from __future__ import absolute_import
import os
import shutil

import wx
from svgui.pyjs import translate

import util.paths as paths
from POULibrary import POULibrary
from docutil import open_svg
from py_ext import PythonFileCTNMixin


class SVGUILibrary(POULibrary):
    def GetLibraryPath(self):
        return paths.AbsNeighbourFile(__file__, "pous.xml")


class SVGUI(PythonFileCTNMixin):

    ConfNodeMethods = [
        {
            "bitmap":    "ImportSVG",
            "name":    _("Import SVG"),
            "tooltip": _("Import SVG"),
            "method":   "_ImportSVG"
        },
        {
            "bitmap":    "ImportSVG",  # should be something different
            "name":    _("Inkscape"),
            "tooltip": _("Create HMI"),
            "method":   "_StartInkscape"
        },
    ]

    def ConfNodePath(self):
        return paths.AbsDir(__file__)

    def _getSVGpath(self, project_path=None):
        if project_path is None:
            project_path = self.CTNPath()
        # define name for SVG file containing gui layout
        return os.path.join(project_path, "gui.svg")

    def _getSVGUIserverpath(self):
        return paths.AbsNeighbourFile(__file__, "svgui_server.py")

    def OnCTNSave(self, from_project_path=None):
        if from_project_path is not None:
            shutil.copyfile(self._getSVGpath(from_project_path),
                            self._getSVGpath())
        return PythonFileCTNMixin.OnCTNSave(self, from_project_path)

    def CTNGenerate_C(self, buildpath, locations):
        """
        Return C code generated by iec2c compiler
        when _generate_softPLC have been called
        @param locations: ignored
        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND
        """

        current_location = self.GetCurrentLocation()
        # define a unique name for the generated C file
        location_str = "_".join(map(str, current_location))

        res = ([], "", False)

        svgfile = self._getSVGpath()
        if os.path.exists(svgfile):
            res += (("gui.svg", open(svgfile, "rb")),)

        svguiserverfile = open(self._getSVGUIserverpath(), 'r')
        svguiservercode = svguiserverfile.read()
        svguiserverfile.close()

        svguilibpath = os.path.join(self._getBuildPath(), "svguilib.js")
        svguilibfile = open(svguilibpath, 'w')
        fpath = paths.AbsDir(__file__)
        svguilibfile.write(translate(os.path.join(fpath, "pyjs", "lib", "sys.py"), "sys"))
        svguilibfile.write(open(os.path.join(fpath, "pyjs", "lib", "_pyjs.js"), 'r').read())
        svguilibfile.write(translate(os.path.join(fpath, "pyjs", "lib", "pyjslib.py"), "pyjslib"))
        svguilibfile.write(translate(os.path.join(fpath, "svguilib.py"), "svguilib"))
        svguilibfile.write("pyjslib();\nsvguilib();\n")
        svguilibfile.write(open(os.path.join(fpath, "pyjs", "lib", "json.js"), 'r').read())
        svguilibfile.write(open(os.path.join(fpath, "livesvg.js"), 'r').read())
        svguilibfile.close()
        jsmodules = {"LiveSVGPage": "svguilib.js"}
        res += (("svguilib.js", open(svguilibpath, "rb")),)

        runtimefile_path = os.path.join(buildpath, "runtime_%s.py" % location_str)
        runtimefile = open(runtimefile_path, 'w')
        runtimefile.write(svguiservercode % {"svgfile": "gui.svg"})
        runtimefile.write("""
def _runtime_%(location)s_start():
    website.LoadHMI(%(svgui_class)s, %(jsmodules)s)

def _runtime_%(location)s_stop():
    website.UnLoadHMI()

        """ % {"location": location_str,
               "svgui_class": "SVGUI_HMI",
               "jsmodules": str(jsmodules)})
        runtimefile.close()

        res += (("runtime_%s.py" % location_str, open(runtimefile_path, "rb")),)

        return res

    def _ImportSVG(self):
        dialog = wx.FileDialog(self.GetCTRoot().AppFrame, _("Choose a SVG file"), os.getcwd(), "",  _("SVG files (*.svg)|*.svg|All files|*.*"), wx.OPEN)
        if dialog.ShowModal() == wx.ID_OK:
            svgpath = dialog.GetPath()
            if os.path.isfile(svgpath):
                shutil.copy(svgpath, self._getSVGpath())
            else:
                self.GetCTRoot().logger.write_error(_("No such SVG file: %s\n") % svgpath)
        dialog.Destroy()

    def _StartInkscape(self):
        svgfile = self._getSVGpath()
        open_inkscape = True
        if not self.GetCTRoot().CheckProjectPathPerm():
            dialog = wx.MessageDialog(self.GetCTRoot().AppFrame,
                                      _("You don't have write permissions.\nOpen Inkscape anyway ?"),
                                      _("Open Inkscape"),
                                      wx.YES_NO | wx.ICON_QUESTION)
            open_inkscape = dialog.ShowModal() == wx.ID_YES
            dialog.Destroy()
        if open_inkscape:
            if not os.path.isfile(svgfile):
                svgfile = None
            open_svg(svgfile)