def _popupMenuLayer(self): """Create popup menu for layers""" menu = Menu() genv = gisenv() currentLocation, currentMapset = self._isCurrent(genv) item = wx.MenuItem(menu, wx.ID_ANY, _("&Cut")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnMoveMap, item) if not currentMapset: item.Enable(False) item = wx.MenuItem(menu, wx.ID_ANY, _("&Copy")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnCopyMap, item) item = wx.MenuItem(menu, wx.ID_ANY, _("Copy &name")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnCopyName, item) item = wx.MenuItem(menu, wx.ID_ANY, _("&Paste")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnPasteMap, item) if not (currentMapset and self.copy_layer): item.Enable(False) item = wx.MenuItem(menu, wx.ID_ANY, _("&Delete")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnDeleteMap, item) item.Enable(currentMapset) item = wx.MenuItem(menu, wx.ID_ANY, _("&Rename")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnRenameMap, item) item.Enable(currentMapset and len(self.selected_layer) == 1) menu.AppendSeparator() if not isinstance(self._giface, StandaloneGrassInterface): if all([ each.label == genv['LOCATION_NAME'] for each in self.selected_location ]): if len(self.selected_layer) > 1: item = wx.MenuItem(menu, wx.ID_ANY, _("&Display layers")) else: item = wx.MenuItem(menu, wx.ID_ANY, _("&Display layer")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnDisplayLayer, item) item = wx.MenuItem(menu, wx.ID_ANY, _("Show &metadata")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnMetadata, item) self.PopupMenu(menu) menu.Destroy()
def OnRightUp(self, event): """Mouse right button up""" if self.disablePopup: return if not hasattr(self, "popupId"): self.popupID = dict() self.popupID['remove'] = NewId() self.popupID['reload'] = NewId() self.Bind(wx.EVT_MENU, self.OnRemove, id=self.popupID['remove']) self.Bind(wx.EVT_MENU, self.OnReload, id=self.popupID['reload']) # generate popup-menu menu = Menu() menu.Append(self.popupID['remove'], _("Delete selected")) if self.GetFirstSelected() == -1: menu.Enable(self.popupID['remove'], False) menu.AppendSeparator() menu.Append(self.popupID['reload'], _("Reload")) self.PopupMenu(menu) menu.Destroy()
def OnRightUp(self, event): """Mouse right button up""" if not hasattr(self, "popupID1"): self.popupID1 = NewId() self.popupID2 = NewId() self.popupID3 = NewId() self.Bind(wx.EVT_MENU, self.OnItemDelete, id=self.popupID1) self.Bind(wx.EVT_MENU, self.OnItemDeleteAll, id=self.popupID2) self.Bind(wx.EVT_MENU, self.OnReload, id=self.popupID3) # generate popup-menu menu = Menu() menu.Append(self.popupID1, _("Delete selected")) if self.list.GetFirstSelected() == -1: menu.Enable(self.popupID1, False) menu.Append(self.popupID2, _("Delete all")) menu.AppendSeparator() menu.Append(self.popupID3, _("Reload")) self.PopupMenu(menu) menu.Destroy()
class InstallExtensionWindow(wx.Frame): def __init__( self, parent, giface, id=wx.ID_ANY, title=_("Fetch & install extension from GRASS Addons"), **kwargs, ): self.parent = parent self._giface = giface self.options = dict() # list of options wx.Frame.__init__(self, parent=parent, id=id, title=title, **kwargs) self.SetIcon( wx.Icon(os.path.join(globalvar.ICONDIR, "grass.ico"), wx.BITMAP_TYPE_ICO)) self.panel = wx.Panel(parent=self, id=wx.ID_ANY) # self.repoBox = StaticBox( # parent=self.panel, id=wx.ID_ANY, label=" %s " % # _("Repository (leave empty to use the official one)")) self.treeBox = StaticBox( parent=self.panel, id=wx.ID_ANY, label=" %s " % _("List of extensions - double-click to install"), ) # self.repo = TextCtrl(parent=self.panel, id=wx.ID_ANY) # modelBuilder loads data into tree model self.modelBuilder = ExtensionTreeModelBuilder() # tree view displays model data self.tree = CTreeView(parent=self.panel, model=self.modelBuilder.GetModel()) self.search = SearchCtrl(self.panel) self.search.SetDescriptiveText(_("Search")) self.search.ShowCancelButton(True) # load data in different thread self.thread = gThread() self.optionBox = StaticBox(parent=self.panel, id=wx.ID_ANY, label=" %s " % _("Options")) task = gtask.parse_interface("g.extension") ignoreFlags = ["l", "c", "g", "a", "f", "t", "help", "quiet"] if sys.platform == "win32": ignoreFlags.append("d") ignoreFlags.append("i") for f in task.get_options()["flags"]: name = f.get("name", "") desc = f.get("label", "") if not desc: desc = f.get("description", "") if not name and not desc: continue if name in ignoreFlags: continue self.options[name] = wx.CheckBox(parent=self.panel, id=wx.ID_ANY, label=desc) # defaultUrl = '' # default/official one will be used when option empty # self.repo.SetValue( # task.get_param( # value='url').get( # 'default', # defaultUrl)) self.statusbar = self.CreateStatusBar(number=1) # self.btnFetch = Button(parent=self.panel, id=wx.ID_ANY, # label=_("&Fetch")) # self.btnFetch.SetToolTip(_("Fetch list of available modules " # "from GRASS Addons repository")) self.btnClose = Button(parent=self.panel, id=wx.ID_CLOSE) self.btnInstall = Button(parent=self.panel, id=wx.ID_ANY, label=_("&Install")) self.btnInstall.SetToolTip(_("Install selected add-ons GRASS module")) self.btnInstall.Enable(False) self.btnHelp = Button(parent=self.panel, id=wx.ID_HELP) self.btnHelp.SetToolTip(_("Show g.extension manual page")) self.btnClose.Bind(wx.EVT_BUTTON, lambda evt: self.Close()) # self.btnFetch.Bind(wx.EVT_BUTTON, self.OnFetch) self.btnInstall.Bind(wx.EVT_BUTTON, self.OnInstall) self.btnHelp.Bind(wx.EVT_BUTTON, self.OnHelp) self.search.Bind(wx.EVT_TEXT, lambda evt: self.Filter(evt.GetString())) self.search.Bind(wx.EVT_SEARCHCTRL_CANCEL_BTN, lambda evt: self.Filter("")) self.tree.selectionChanged.connect(self.OnItemSelected) self.tree.itemActivated.connect(self.OnItemActivated) self.tree.contextMenu.connect(self.OnContextMenu) wx.CallAfter(self._fetch) self._layout() def _layout(self): """Do layout""" sizer = wx.BoxSizer(wx.VERTICAL) # repoSizer = wx.StaticBoxSizer(self.repoBox, wx.VERTICAL) # repo1Sizer = wx.BoxSizer(wx.HORIZONTAL) # repo1Sizer.Add(self.repo, proportion=1, # flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL, border=1) # repo1Sizer.Add(self.btnFetch, proportion=0, # flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL, border=1) # repoSizer.Add(repo1Sizer, # flag=wx.EXPAND) sizer.Add(self.search, proportion=0, flag=wx.EXPAND | wx.ALL, border=3) treeSizer = wx.StaticBoxSizer(self.treeBox, wx.HORIZONTAL) treeSizer.Add(self.tree, proportion=1, flag=wx.ALL | wx.EXPAND, border=1) # options optionSizer = wx.StaticBoxSizer(self.optionBox, wx.VERTICAL) for key in self.options.keys(): optionSizer.Add(self.options[key], proportion=0) btnSizer = wx.BoxSizer(wx.HORIZONTAL) btnSizer.Add(self.btnHelp, proportion=0) btnSizer.AddStretchSpacer() btnSizer.Add(self.btnClose, proportion=0, flag=wx.RIGHT, border=5) btnSizer.Add(self.btnInstall, proportion=0) # sizer.Add(repoSizer, proportion=0, # flag=wx.ALL | wx.EXPAND, border=3) sizer.Add( treeSizer, proportion=1, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=3, ) sizer.Add( optionSizer, proportion=0, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=3, ) sizer.Add(btnSizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=5) self.panel.SetSizer(sizer) sizer.Fit(self.panel) self.Layout() def _getCmd(self): item = self.tree.GetSelected() if not item or "command" not in item[0].data: GError(_("Extension not defined"), parent=self) return name = item[0].data["command"] flags = list() for key in self.options.keys(): if self.options[key].IsChecked(): if len(key) == 1: flags.append("-%s" % key) else: flags.append("--%s" % key) # 'url=' + self.repo.GetValue().strip()] return ["g.extension"] + flags + ["extension={}".format(name)] def OnFetch(self, event): """Fetch list of available extensions""" self._fetch() def _fetch(self): """Fetch list of available extensions""" wx.BeginBusyCursor() self.SetStatusText( _("Fetching list of modules from GRASS-Addons (be patient)..."), 0) try: self.thread.Run( callable=self.modelBuilder.Load, url="", # self.repo.GetValue().strip(), ondone=lambda event: self._fetchDone(), ) except GException as error: self._fetchDone() GError(str(error), parent=self, showTraceback=False) def _fetchDone(self): self.tree.RefreshItems() nitems = len(self.modelBuilder.GetModel().SearchNodes(key="command", value="*")) self.SetStatusText(_("%d extensions loaded") % nitems, 0) wx.EndBusyCursor() def Filter(self, text): model = self.modelBuilder.GetModel() if text: model = model.Filtered(key=["command", "keywords", "description"], value=text) self.tree.SetModel(model) self.tree.ExpandAll() else: self.tree.SetModel(model) def OnContextMenu(self, node): if not hasattr(self, "popupID"): self.popupID = dict() for key in ("install", "help"): self.popupID[key] = NewId() data = node.data if data and "command" in data: self.popupMenu = Menu() self.popupMenu.Append(self.popupID["install"], _("Install")) self.Bind(wx.EVT_MENU, self.OnInstall, id=self.popupID["install"]) self.popupMenu.AppendSeparator() self.popupMenu.Append(self.popupID["help"], _("Show manual page")) self.Bind(wx.EVT_MENU, self.OnItemHelp, id=self.popupID["help"]) self.PopupMenu(self.popupMenu) self.popupMenu.Destroy() def OnItemActivated(self, node): data = node.data if data and "command" in data: self.OnInstall(event=None) def OnInstall(self, event): """Install selected extension""" log = self.parent.GetLogWindow() cmd = self._getCmd() if cmd: log.RunCmd(cmd, onDone=self.OnDone) def OnDone(self, event): if event.returncode == 0: if not os.getenv("GRASS_ADDON_BASE"): SetAddOnPath(key="BASE") globalvar.UpdateGRASSAddOnCommands() toolboxesOutdated() def OnItemHelp(self, event): item = self.tree.GetSelected() if not item or "command" not in item[0].data: return self._giface.Help(entry=item[0].data["command"], online=True) def OnHelp(self, event): self._giface.Help(entry="g.extension") def OnItemSelected(self, node): """Item selected""" data = node.data if data is None: self.SetStatusText("", 0) self.btnInstall.Enable(False) else: self.SetStatusText(data.get("description", ""), 0) self.btnInstall.Enable(True)
def OnImportMenu(self, event): """Create popup menu for other import options""" # create submenu subMenu = Menu() subitem = wx.MenuItem(subMenu, wx.ID_ANY, _("Link external raster data [r.external]")) subMenu.AppendItem(subitem) self.Bind(wx.EVT_MENU, self.OnLinkGdalLayers, subitem) subitem = wx.MenuItem(subMenu, wx.ID_ANY, _("Link external vector data [v.external]")) subMenu.AppendItem(subitem) self.Bind(wx.EVT_MENU, self.OnLinkOgrLayers, subitem) subMenu.AppendSeparator() subitem = wx.MenuItem(subMenu, wx.ID_ANY, _("Set raster output format [r.external.out]")) subMenu.AppendItem(subitem) self.Bind(wx.EVT_MENU, self.OnRasterOutputFormat, subitem) subitem = wx.MenuItem(subMenu, wx.ID_ANY, _("Set vector output format [v.external.out]")) subMenu.AppendItem(subitem) self.Bind(wx.EVT_MENU, self.OnVectorOutputFormat, subitem) # create menu menu = Menu() item = wx.MenuItem(menu, wx.ID_ANY, _("Unpack GRASS raster map [r.unpack]")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, lambda evt: self.GuiParseCommand("r.unpack"), item) item = wx.MenuItem(menu, wx.ID_ANY, _("Unpack GRASS vector map [v.unpack]")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, lambda evt: self.GuiParseCommand("v.unpack"), item) menu.AppendSeparator() item = wx.MenuItem(menu, wx.ID_ANY, _("Create raster map from x,y,z data [r.in.xyz]")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, lambda evt: self.GuiParseCommand("r.in.xyz"), item) item = wx.MenuItem( menu, wx.ID_ANY, _("Create vector map from x,y,z data [v.in.ascii]")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, lambda evt: self.GuiParseCommand("v.in.ascii"), item) menu.AppendSeparator() menu.AppendMenu(wx.ID_ANY, _("Link external data"), subMenu) menu.AppendSeparator() item = wx.MenuItem(menu, wx.ID_ANY, _("More options...")) menu.AppendItem(item) self.Bind(wx.EVT_MENU, self.OnMoreOptions, item) self.PopupMenu(menu) menu.Destroy()
def OnCategoryRightUp(self, event): """Show context menu on right click""" item, flags = self.HitTest((event.GetX(), event.GetY())) if item != wx.NOT_FOUND and flags & wx.LIST_HITTEST_ONITEM: self.rightClickedItemIdx = item # generate popup-menu cat_idx = self.rightClickedItemIdx cats = self.cats_mgr.GetCategories() cat_id = cats[cat_idx] showed = self.cats_mgr.GetCategoryAttrs(cat_id)['show'] menu = Menu() item = menu.Append(wx.ID_ANY, _("Rename class")) self.Bind(wx.EVT_MENU, self.OnRename, item) item = menu.Append(wx.ID_ANY, _("Set color")) self.Bind(wx.EVT_MENU, self.OnSetColor, item) item = menu.Append(item_id, _("Change opacity level")) self.Bind(wx.EVT_MENU, self.OnPopupOpacityLevel, item) if showed: text = _("Hide") else: text = _("Show") item = menu.Append(wx.ID_ANY, text) self.Bind( wx.EVT_MENU, lambda event: self._setCatAttrs(cat_id=cat_id, attrs={'show': not showed}), item) menu.AppendSeparator() item = menu.Append(wx.ID_ANY, _("Move to top")) self.Bind(wx.EVT_MENU, self.OnMoveTop, item) if cat_idx == 0: menu.Enable(item.GetId(), False) item = menu.Append(wx.ID_ANY, _("Move to bottom")) self.Bind(wx.EVT_MENU, self.OnMoveBottom, item) if cat_idx == len(cats) - 1: menu.Enable(item.GetId(), False) menu.AppendSeparator() item = menu.Append(wx.ID_ANY, _("Move category up")) self.Bind(wx.EVT_MENU, self.OnMoveUp, item) if cat_idx == 0: menu.Enable(item.GetId(), False) item = menu.Append(wx.ID_ANY, _("Move category down")) self.Bind(wx.EVT_MENU, self.OnMoveDown, item) if cat_idx == len(cats) - 1: menu.Enable(item.GetId(), False) menu.AppendSeparator() item = menu.Append(wx.ID_ANY, _("Export class raster")) self.Bind(wx.EVT_MENU, self.OnExportCatRast, item) self.PopupMenu(menu) menu.Destroy()
class InstallExtensionWindow(wx.Frame): def __init__(self, parent, giface, id=wx.ID_ANY, title=_("Fetch & install extension from GRASS Addons"), **kwargs): self.parent = parent self._giface = giface self.options = dict() # list of options wx.Frame.__init__(self, parent=parent, id=id, title=title, **kwargs) self.SetIcon( wx.Icon(os.path.join(globalvar.ICONDIR, 'grass.ico'), wx.BITMAP_TYPE_ICO)) self.panel = wx.Panel(parent=self, id=wx.ID_ANY) # self.repoBox = StaticBox( # parent=self.panel, id=wx.ID_ANY, label=" %s " % # _("Repository (leave empty to use the official one)")) self.treeBox = StaticBox( parent=self.panel, id=wx.ID_ANY, label=" %s " % _("List of extensions - double-click to install")) # self.repo = TextCtrl(parent=self.panel, id=wx.ID_ANY) # modelBuilder loads data into tree model self.modelBuilder = ExtensionTreeModelBuilder() # tree view displays model data self.tree = CTreeView(parent=self.panel, model=self.modelBuilder.GetModel()) self.search = SearchModuleWidget(parent=self.panel, model=self.modelBuilder.GetModel(), showChoice=False) self.search.showSearchResult.connect( lambda result: self.tree.Select(result)) # show text in statusbar when notification appears self.search.showNotification.connect( lambda message: self.SetStatusText(message)) # load data in different thread self.thread = gThread() self.optionBox = StaticBox(parent=self.panel, id=wx.ID_ANY, label=" %s " % _("Options")) task = gtask.parse_interface('g.extension') ignoreFlags = ['l', 'c', 'g', 'a', 'f', 't', 'help', 'quiet'] if sys.platform == 'win32': ignoreFlags.append('d') ignoreFlags.append('i') for f in task.get_options()['flags']: name = f.get('name', '') desc = f.get('label', '') if not desc: desc = f.get('description', '') if not name and not desc: continue if name in ignoreFlags: continue self.options[name] = wx.CheckBox(parent=self.panel, id=wx.ID_ANY, label=desc) # defaultUrl = '' # default/official one will be used when option empty # self.repo.SetValue( # task.get_param( # value='url').get( # 'default', # defaultUrl)) self.statusbar = self.CreateStatusBar(number=1) # self.btnFetch = Button(parent=self.panel, id=wx.ID_ANY, # label=_("&Fetch")) # self.btnFetch.SetToolTip(_("Fetch list of available modules " # "from GRASS Addons repository")) self.btnClose = Button(parent=self.panel, id=wx.ID_CLOSE) self.btnInstall = Button(parent=self.panel, id=wx.ID_ANY, label=_("&Install")) self.btnInstall.SetToolTip(_("Install selected add-ons GRASS module")) self.btnInstall.Enable(False) self.btnHelp = Button(parent=self.panel, id=wx.ID_HELP) self.btnHelp.SetToolTip(_("Show g.extension manual page")) self.btnClose.Bind(wx.EVT_BUTTON, lambda evt: self.Close()) # self.btnFetch.Bind(wx.EVT_BUTTON, self.OnFetch) self.btnInstall.Bind(wx.EVT_BUTTON, self.OnInstall) self.btnHelp.Bind(wx.EVT_BUTTON, self.OnHelp) self.tree.selectionChanged.connect(self.OnItemSelected) self.tree.itemActivated.connect(self.OnItemActivated) self.tree.contextMenu.connect(self.OnContextMenu) wx.CallAfter(self._fetch) self._layout() def _layout(self): """Do layout""" sizer = wx.BoxSizer(wx.VERTICAL) # repoSizer = wx.StaticBoxSizer(self.repoBox, wx.VERTICAL) # repo1Sizer = wx.BoxSizer(wx.HORIZONTAL) # repo1Sizer.Add(self.repo, proportion=1, # flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL, border=1) # repo1Sizer.Add(self.btnFetch, proportion=0, # flag=wx.ALL | wx.ALIGN_CENTER_VERTICAL, border=1) # repoSizer.Add(repo1Sizer, # flag=wx.EXPAND) findSizer = wx.BoxSizer(wx.HORIZONTAL) findSizer.Add(self.search, proportion=1) treeSizer = wx.StaticBoxSizer(self.treeBox, wx.HORIZONTAL) treeSizer.Add(self.tree, proportion=1, flag=wx.ALL | wx.EXPAND, border=1) # options optionSizer = wx.StaticBoxSizer(self.optionBox, wx.VERTICAL) for key in self.options.keys(): optionSizer.Add(self.options[key], proportion=0) btnSizer = wx.BoxSizer(wx.HORIZONTAL) btnSizer.Add(self.btnHelp, proportion=0) btnSizer.AddStretchSpacer() btnSizer.Add(self.btnClose, proportion=0, flag=wx.RIGHT, border=5) btnSizer.Add(self.btnInstall, proportion=0) # sizer.Add(repoSizer, proportion=0, # flag=wx.ALL | wx.EXPAND, border=3) sizer.Add(findSizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=3) sizer.Add(treeSizer, proportion=1, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=3) sizer.Add(optionSizer, proportion=0, flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND, border=3) sizer.Add(btnSizer, proportion=0, flag=wx.ALIGN_RIGHT | wx.ALL | wx.EXPAND, border=5) self.panel.SetSizer(sizer) sizer.Fit(self.panel) self.Layout() def _getCmd(self): item = self.tree.GetSelected() if not item or 'command' not in item[0].data: GError(_("Extension not defined"), parent=self) return name = item[0].data['command'] flags = list() for key in self.options.keys(): if self.options[key].IsChecked(): if len(key) == 1: flags.append('-%s' % key) else: flags.append('--%s' % key) # 'url=' + self.repo.GetValue().strip()] return ['g.extension'] + flags + ['extension={}'.format(name)] def OnFetch(self, event): """Fetch list of available extensions""" self._fetch() def _fetch(self): """Fetch list of available extensions""" wx.BeginBusyCursor() self.SetStatusText( _("Fetching list of modules from GRASS-Addons (be patient)..."), 0) try: self.thread.Run( callable=self.modelBuilder.Load, url='', # self.repo.GetValue().strip(), ondone=lambda event: self._fetchDone()) except GException as e: self._fetchDone() GError(unicode(e), parent=self, showTraceback=False) def _fetchDone(self): self.tree.RefreshItems() nitems = len(self.modelBuilder.GetModel().SearchNodes(key='command', value='*')) self.SetStatusText(_("%d extensions loaded") % nitems, 0) wx.EndBusyCursor() def OnContextMenu(self, node): if not hasattr(self, "popupID"): self.popupID = dict() for key in ('install', 'help'): self.popupID[key] = NewId() data = node.data if data and 'command' in data: self.popupMenu = Menu() self.popupMenu.Append(self.popupID['install'], text=_("Install")) self.Bind(wx.EVT_MENU, self.OnInstall, id=self.popupID['install']) self.popupMenu.AppendSeparator() self.popupMenu.Append(self.popupID['help'], text=_("Show manual page")) self.Bind(wx.EVT_MENU, self.OnItemHelp, id=self.popupID['help']) self.PopupMenu(self.popupMenu) self.popupMenu.Destroy() def OnItemActivated(self, node): data = node.data if data and 'command' in data: self.OnInstall(event=None) def OnInstall(self, event): """Install selected extension""" log = self.parent.GetLogWindow() cmd = self._getCmd() if cmd: log.RunCmd(cmd, onDone=self.OnDone) def OnDone(self, event): if event.returncode == 0: if not os.getenv('GRASS_ADDON_BASE'): SetAddOnPath(key='BASE') globalvar.UpdateGRASSAddOnCommands() toolboxesOutdated() def OnItemHelp(self, event): item = self.tree.GetSelected() if not item or 'command' not in item[0].data: return self._giface.Help(entry=item[0].data['command'], online=True) def OnHelp(self, event): self._giface.Help(entry='g.extension') def OnItemSelected(self, node): """Item selected""" data = node.data if data is None: self.SetStatusText('', 0) self.btnInstall.Enable(False) else: self.SetStatusText(data.get('description', ''), 0) self.btnInstall.Enable(True)