Adding support for python plugin wxglade_hmi allowing creation of PLC HMI using wxglade
Updating linux wxglade example according to this new plugin design
import wx
import os, sys
from xml.dom import minidom
from plugger import opjimg
from plugins.python import PythonCodeTemplate
class RootClass(PythonCodeTemplate):
PluginMethods = [
{"bitmap" : opjimg("editWXGLADE"),
"name" : _("WXGLADE GUI"),
"tooltip" : _("Edit a WxWidgets GUI with WXGlade"),
"method" : "_editWXGLADE"},
]
def _getWXGLADEpath(self):
# define name for IEC raw code file
return os.path.join(self.PlugPath(), "hmi.wxg")
def launch_wxglade(self, options, wait=False):
from wxglade import __file__ as fileName
path = os.path.dirname(fileName)
glade = os.path.join(path, 'wxglade.py')
if wx.Platform == '__WXMSW__':
glade = "\"%s\""%glade
mode = {False:os.P_NOWAIT, True:os.P_WAIT}[wait]
os.spawnv(mode, sys.executable, ["\"%s\""%sys.executable] + [glade] + options)
def PlugGenerate_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(lambda x:str(x), current_location))
runtimefile_path = os.path.join(buildpath, "runtime_%s.py"%location_str)
runtimefile = open(runtimefile_path, 'w')
hmi_frames = {}
wxgfile_path=self._getWXGLADEpath()
if os.path.exists(wxgfile_path):
wxgfile = open(wxgfile_path, 'r')
wxgtree = minidom.parse(wxgfile)
wxgfile.close()
for node in wxgtree.childNodes[1].childNodes:
if node.nodeType == wxgtree.ELEMENT_NODE:
hmi_frames[node._attrs["name"].value] = node._attrs["class"].value
hmipyfile_path=os.path.join(self._getBuildPath(), "hmi.py")
if wx.Platform == '__WXMSW__':
wxgfile_path = "\"%s\""%wxgfile_path
hmipyfile_path = "\"%s\""%hmipyfile_path
self.launch_wxglade(['-o', hmipyfile_path, '-g', 'python', wxgfile_path], wait=True)
hmipyfile = open(hmipyfile_path, 'r')
runtimefile.write(hmipyfile.read())
hmipyfile.close()
runtimefile.write(self.GetPythonCode())
runtimefile.write("""
%(declare)s
def _runtime_%(location)s_begin():
global %(global)s
def OnCloseFrame(evt):
wx.MessageBox(_("Please stop PLC to close"))
%(init)s
def _runtime_%(location)s_cleanup():
global %(global)s
%(cleanup)s
""" % {"location": location_str,
"declare": "\n".join(map(lambda x:"%s = None" % x, hmi_frames.keys())),
"global": ",".join(hmi_frames.keys()),
"init": "\n".join(map(lambda x: """
%(name)s = %(class)s(None)
%(name)s.Bind(wx.EVT_CLOSE, OnCloseFrame)
%(name)s.Show()
""" % {"name": x[0], "class": x[1]},
hmi_frames.items())),
"cleanup": "\n ".join(map(lambda x:"%s.Destroy()" % x, hmi_frames.keys()))})
runtimefile.close()
return [], "", False, ("runtime_%s.py"%location_str, file(runtimefile_path,"rb"))
def _editWXGLADE(self):
wxg_filename = self._getWXGLADEpath()
if not os.path.exists(wxg_filename):
hmi_name = self.BaseParams.getName()
open(wxg_filename,"w").write("""<?xml version="1.0"?>
<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">
<object class="%(class)s" name="%(name)s" base="EditFrame">
<style>wxDEFAULT_FRAME_STYLE</style>
<title>frame_1</title>
</object>
</application>
""" % {"name": hmi_name, "class": "Class_%s" % hmi_name})
if wx.Platform == '__WXMSW__':
wxg_filename = "\"%s\""%wxg_filename
self.launch_wxglade([wxg_filename])