wxglade_hmi/wxglade_hmi.py
author Edouard Tisserant
Thu, 16 May 2013 17:40:32 +0900
changeset 1157 72d14a74c643
parent 1155 412e30abf7e5
child 1163 32599dcf311f
permissions -rw-r--r--
Added wiimote input example using python-cwiid and python PLC global variable access
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import wx
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import os, sys, shutil
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from xml.dom import minidom
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from py_ext import PythonFileCTNMixin
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class WxGladeHMI(PythonFileCTNMixin):
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    ConfNodeMethods = [
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        {"bitmap" : "editWXGLADE",
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         "name" : _("WXGLADE GUI"),
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         "tooltip" : _("Edit a WxWidgets GUI with WXGlade"),
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         "method" : "_editWXGLADE"},
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    ]
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    def ConfNodePath(self):
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        return os.path.join(os.path.dirname(__file__))
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    def _getWXGLADEpath(self, project_path=None):
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        if project_path is None:
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            project_path = self.CTNPath()
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        # define name for wxGlade gui file
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        return os.path.join(project_path, "hmi.wxg")
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    def launch_wxglade(self, options, wait=False):
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        from wxglade import __file__ as fileName
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        path = os.path.dirname(fileName)
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        glade = os.path.join(path, 'wxglade.py')
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        if wx.Platform == '__WXMSW__':
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            glade = "\"%s\""%glade
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        mode = {False:os.P_NOWAIT, True:os.P_WAIT}[wait]
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        os.spawnv(mode, sys.executable, ["\"%s\""%sys.executable] + [glade] + options)
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    def OnCTNSave(self, from_project_path=None):
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        if from_project_path is not None:
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            shutil.copyfile(self._getWXGLADEpath(from_project_path),
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                            self._getWXGLADEpath())
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        return PythonFileCTNMixin.OnCTNSave(self, from_project_path)
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    def CTNGenerate_C(self, buildpath, locations):
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        hmi_frames = []
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        wxgfile_path=self._getWXGLADEpath()
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        if os.path.exists(wxgfile_path):
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            wxgfile = open(wxgfile_path, 'r')
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            wxgtree = minidom.parse(wxgfile)
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            wxgfile.close()
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            for node in wxgtree.childNodes[1].childNodes:
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                if node.nodeType == wxgtree.ELEMENT_NODE:
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                    hmi_frames.append({
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                        "name" : node.getAttribute("name"),
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                        "class" : node.getAttribute("class"),
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                        "handlers" : [
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                            hnode.firstChild.data for hnode in 
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                            node.getElementsByTagName("handler")]})
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            hmipyfile_path=os.path.join(self._getBuildPath(), "hmi.py")
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            if wx.Platform == '__WXMSW__':
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                wxgfile_path = "\"%s\""%wxgfile_path
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                wxghmipyfile_path = "\"%s\""%hmipyfile_path
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            else:
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                wxghmipyfile_path = hmipyfile_path
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            self.launch_wxglade(['-o', wxghmipyfile_path, '-g', 'python', wxgfile_path], wait=True)
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            hmipyfile = open(hmipyfile_path, 'r')
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            define_hmi = hmipyfile.read().decode('utf-8')
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            hmipyfile.close()
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        declare_hmi = "\n".join(["%(name)s = None\n" % x + 
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                          "\n".join(["%(class)s.%(h)s = %(h)s"%
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                            dict(x,h=h) for h in x['handlers']])
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                                for x in hmi_frames])
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        global_hmi = "global %s\n"%",".join(
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            [x["name"] for x in hmi_frames]) 
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        init_hmi = "\n".join(["""\
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def OnCloseFrame(evt):
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    wx.MessageBox(_("Please stop PLC to close"))
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%(name)s = %(class)s(None)
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%(name)s.Bind(wx.EVT_CLOSE, OnCloseFrame)
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%(name)s.Show()
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""" % x for x in hmi_frames])
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        cleanup_hmi = "\n".join(
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            ["if %(name)s is not None: %(name)s.Destroy()" % x 
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                for x in hmi_frames])
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        self.PreSectionsTexts = {
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            "globals":define_hmi,
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            "start":global_hmi,
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            "stop":global_hmi + cleanup_hmi
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        }
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        self.PostSectionsTexts = {
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            "globals":declare_hmi,
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            "start":init_hmi,
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        }
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        return PythonFileCTNMixin.CTNGenerate_C(self, buildpath, locations)
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    def _editWXGLADE(self):
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        wxg_filename = self._getWXGLADEpath()
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        open_wxglade = True
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        if not self.GetCTRoot().CheckProjectPathPerm():
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            dialog = wx.MessageDialog(self.GetCTRoot().AppFrame,
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                                      _("You don't have write permissions.\nOpen wxGlade anyway ?"),
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                                      _("Open wxGlade"),
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                                      wx.YES_NO|wx.ICON_QUESTION)
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            open_wxglade = dialog.ShowModal() == wx.ID_YES
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            dialog.Destroy()
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        if open_wxglade:
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            if not os.path.exists(wxg_filename):
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                hmi_name = self.BaseParams.getName()
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                open(wxg_filename,"w").write("""<?xml version="1.0"?>
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    <application path="" name="" class="" option="0" language="python" top_window="%(name)s" encoding="UTF-8" use_gettext="0" overwrite="0" use_new_namespace="1" for_version="2.8" is_template="0">
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        <object class="%(class)s" name="%(name)s" base="EditFrame">
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            <style>wxDEFAULT_FRAME_STYLE</style>
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            <title>frame_1</title>
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            <object class="wxBoxSizer" name="sizer_1" base="EditBoxSizer">
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                <orient>wxVERTICAL</orient>
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            <object class="sizerslot" />
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        </object>
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        </object>
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    </application>
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    """ % {"name": hmi_name, "class": "Class_%s" % hmi_name})
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            if wx.Platform == '__WXMSW__':
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                wxg_filename = "\"%s\""%wxg_filename
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            self.launch_wxglade([wxg_filename])
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