beremiz

fix Traceback if search icon on library panel is clicked, when no

2016-04-22, Andrey Skvortsov
d917c209529d
fix Traceback if search icon on library panel is clicked, when no
category/item is selected in the library.

The problem is here, that if nothing is selected method GetSelection()
returns root item, that doesn't have any python data associated with it.
This issue seems to be wx3.0 specified, because it doesn't exist
with wx2.8 on Windows.
import wx
import os, sys, shutil
from xml.dom import minidom
from py_ext import PythonFileCTNMixin
class WxGladeHMI(PythonFileCTNMixin):
ConfNodeMethods = [
{"bitmap" : "editWXGLADE",
"name" : _("WXGLADE GUI"),
"tooltip" : _("Edit a WxWidgets GUI with WXGlade"),
"method" : "_editWXGLADE"},
]
def GetIconName(self):
return "wxGlade"
def ConfNodePath(self):
return os.path.join(os.path.dirname(__file__))
def _getWXGLADEpath(self, project_path=None):
if project_path is None:
project_path = self.CTNPath()
# define name for wxGlade gui file
return os.path.join(project_path, "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 OnCTNSave(self, from_project_path=None):
if from_project_path is not None:
shutil.copyfile(self._getWXGLADEpath(from_project_path),
self._getWXGLADEpath())
return PythonFileCTNMixin.OnCTNSave(self, from_project_path)
def CTNGenerate_C(self, buildpath, locations):
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.append({
"name" : node.getAttribute("name"),
"class" : node.getAttribute("class"),
"handlers" : [
hnode.firstChild.data for hnode in
node.getElementsByTagName("handler")]})
hmipyfile_path=os.path.join(self._getBuildPath(), "hmi.py")
if wx.Platform == '__WXMSW__':
wxgfile_path = "\"%s\""%wxgfile_path
wxghmipyfile_path = "\"%s\""%hmipyfile_path
else:
wxghmipyfile_path = hmipyfile_path
self.launch_wxglade(['-o', wxghmipyfile_path, '-g', 'python', wxgfile_path], wait=True)
hmipyfile = open(hmipyfile_path, 'r')
define_hmi = hmipyfile.read().decode('utf-8')
hmipyfile.close()
else:
define_hmi = ""
declare_hmi = "\n".join(["%(name)s = None\n" % x +
"\n".join(["%(class)s.%(h)s = %(h)s"%
dict(x,h=h) for h in x['handlers']])
for x in hmi_frames])
global_hmi = ("global %s\n"%",".join(
[x["name"] for x in hmi_frames])
if len(hmi_frames) > 0 else "")
init_hmi = "\n".join(["""\
def OnCloseFrame(evt):
wx.MessageBox(_("Please stop PLC to close"))
%(name)s = %(class)s(None)
%(name)s.Bind(wx.EVT_CLOSE, OnCloseFrame)
%(name)s.Show()
""" % x for x in hmi_frames])
cleanup_hmi = "\n".join(
["if %(name)s is not None: %(name)s.Destroy()" % x
for x in hmi_frames])
self.PreSectionsTexts = {
"globals":define_hmi,
"start":global_hmi,
"stop":global_hmi + cleanup_hmi
}
self.PostSectionsTexts = {
"globals":declare_hmi,
"start":init_hmi,
}
return PythonFileCTNMixin.CTNGenerate_C(self, buildpath, locations)
def _editWXGLADE(self):
wxg_filename = self._getWXGLADEpath()
open_wxglade = True
if not self.GetCTRoot().CheckProjectPathPerm():
dialog = wx.MessageDialog(self.GetCTRoot().AppFrame,
_("You don't have write permissions.\nOpen wxGlade anyway ?"),
_("Open wxGlade"),
wx.YES_NO|wx.ICON_QUESTION)
open_wxglade = dialog.ShowModal() == wx.ID_YES
dialog.Destroy()
if open_wxglade:
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 class="wxBoxSizer" name="sizer_1" base="EditBoxSizer">
<orient>wxVERTICAL</orient>
<object class="sizerslot" />
</object>
</object>
</application>
""" % {"name": hmi_name, "class": "Class_%s" % hmi_name})
if wx.Platform == '__WXMSW__':
wxg_filename = "\"%s\""%wxg_filename
self.launch_wxglade([wxg_filename])