def setup_context_menu(self):
     """Setup shell context menu"""
     self.menu = QMenu(self)
     self.cut_action = create_action(self,
                                     translate("ShellBaseWidget", "Cut"),
                                     shortcut=keybinding('Cut'),
                                     icon=get_icon('editcut.png'),
                                     triggered=self.cut)
     self.copy_action = create_action(self,
                                      translate("ShellBaseWidget", "Copy"),
                                      shortcut=keybinding('Copy'),
                                      icon=get_icon('editcopy.png'),
                                      triggered=self.copy)
     paste_action = create_action(self,
                                  translate("ShellBaseWidget", "Paste"),
                                  shortcut=keybinding('Paste'),
                                  icon=get_icon('editpaste.png'),
                                  triggered=self.paste)
     save_action = create_action(self,
                                 translate("ShellBaseWidget",
                                           "Save history log..."),
                                 icon=get_icon('filesave.png'),
                                 tip=translate("ShellBaseWidget",
                                       "Save current history log (i.e. all "
                                       "inputs and outputs) in a text file"),
                                 triggered=self.save_historylog)
     add_actions(self.menu, (self.cut_action, self.copy_action,
                             paste_action, None, save_action) )

    def __init__(self, parent, data, readonly=False, title="",
                 names=False, truncate=True, minmax=False,
                 inplace=False, collvalue=True):
        BaseTableView.__init__(self, parent)
        self.dictfilter = None
        self.readonly = readonly or isinstance(data, tuple)
        self.model = None
        self.delegate = None
        DictModelClass = ReadOnlyDictModel if self.readonly else DictModel
        self.model = DictModelClass(self, data, title, names=names,
                                    truncate=truncate, minmax=minmax,
                                    collvalue=collvalue)
        self.setModel(self.model)
        self.delegate = DictDelegate(self, inplace=inplace)
        self.setItemDelegate(self.delegate)

        self.setup_table()
        self.menu = self.setup_menu(truncate, minmax, inplace, collvalue)
        self.copy_action = create_action(self,
                                      translate("DictEditor", "Copy"),
                                      icon=get_icon('editcopy.png'),
                                      triggered=self.copy)                                      
        self.paste_action = create_action(self,
                                      translate("DictEditor", "Paste"),
                                      icon=get_icon('editpaste.png'),
                                      triggered=self.paste)
        self.menu.insertAction(self.remove_action, self.copy_action)
        self.menu.insertAction(self.remove_action, self.paste_action)
        
        self.empty_ws_menu = QMenu(self)
        self.empty_ws_menu.addAction(self.paste_action)

    def add_history(self, filename):
        """
        Add new history tab
        Slot for SIGNAL('add_history(QString)') emitted by shell instance
        """
        filename = encoding.to_unicode(filename)
        if filename in self.filenames:
            return
        editor = CodeEditor(self)
        if osp.splitext(filename)[1] == '.py':
            language = 'py'
            icon = get_icon('python.png')
        else:
            language = 'bat'
            icon = get_icon('cmdprompt.png')
        editor.setup_editor(linenumbers=False, language=language,
                            code_folding=True, scrollflagarea=False)
        self.connect(editor, SIGNAL("focus_changed()"),
                     lambda: self.emit(SIGNAL("focus_changed()")))
        editor.setReadOnly(True)
        editor.set_font( get_font(self.ID) )
        editor.toggle_wrap_mode( CONF.get(self.ID, 'wrap') )

        text, _ = encoding.read(filename)
        editor.set_text(text)
        editor.set_cursor_position('eof')
        
        self.editors.append(editor)
        self.filenames.append(filename)
        self.icons.append(icon)
        index = self.tabwidget.addTab(editor, osp.basename(filename))
        self.find_widget.set_editor(editor)
        self.tabwidget.setTabToolTip(index, filename)
        self.tabwidget.setTabIcon(index, icon)
        self.tabwidget.setCurrentIndex(index)

 def setup_common_actions(self):
     """Setup context menu common actions"""
     self.collapse_all_action = create_action(self,
                                  text=_('Collapse all'),
                                  icon=get_icon('collapse.png'),
                                  triggered=self.collapseAll)
     self.expand_all_action = create_action(self,
                                  text=_('Expand all'),
                                  icon=get_icon('expand.png'),
                                  triggered=self.expandAll)
     self.restore_action = create_action(self,
                                  text=_('Restore'),
                                  tip=_('Restore original tree layout'),
                                  icon=get_icon('restore.png'),
                                  triggered=self.restore)
     self.collapse_selection_action = create_action(self,
                                  text=_('Collapse selection'),
                                  icon=get_icon('collapse_selection.png'),
                                  triggered=self.collapse_selection)
     self.expand_selection_action = create_action(self,
                                  text=_('Expand selection'),
                                  icon=get_icon('expand_selection.png'),
                                  triggered=self.expand_selection)
     return [self.collapse_all_action, self.expand_all_action,
             self.restore_action, None,
             self.collapse_selection_action, self.expand_selection_action]

 def get_toolbar_buttons(self):
     if self.run_button is None:
         self.run_button = create_toolbutton(self, text=_("Run"),
                                          icon=get_icon('run.png'),
                                          tip=_("Run again this program"),
                                          triggered=self.start_shell)
     if self.kill_button is None:
         self.kill_button = create_toolbutton(self, text=_("Kill"),
                                  icon=get_icon('kill.png'),
                                  tip=_("Kills the current process, "
                                        "causing it to exit immediately"))
     buttons = [self.run_button]
     if self.options_button is None:
         options = self.get_options_menu()
         if options:
             self.options_button = create_toolbutton(self, text=_("Options"),
                                         icon=get_icon('tooloptions.png'))
             self.options_button.setPopupMode(QToolButton.InstantPopup)
             menu = QMenu(self)
             add_actions(menu, options)
             self.options_button.setMenu(menu)
     if self.options_button is not None:
         buttons.append(self.options_button)
     buttons.append(self.kill_button)
     return buttons

 def setup_bottom_toolbar(self, layout, sync=True):
     toolbar = []
     add_button = create_toolbutton(
         self, text=_("Add path"), icon=get_icon("edit_add.png"), triggered=self.add_path, text_beside_icon=True
     )
     toolbar.append(add_button)
     remove_button = create_toolbutton(
         self,
         text=_("Remove path"),
         icon=get_icon("edit_remove.png"),
         triggered=self.remove_path,
         text_beside_icon=True,
     )
     toolbar.append(remove_button)
     self.selection_widgets.append(remove_button)
     self._add_widgets_to_layout(layout, toolbar)
     layout.addStretch(1)
     if os.name == "nt" and sync:
         self.sync_button = create_toolbutton(
             self,
             text=_("Synchronize..."),
             icon=get_icon("synchronize.png"),
             triggered=self.synchronize,
             tip=_("Synchronize Spyder's path list with PYTHONPATH " "environment variable"),
             text_beside_icon=True,
         )
         layout.addWidget(self.sync_button)
     return toolbar

 def get_toolbar_buttons(self):
     ExternalShellBase.get_toolbar_buttons(self)
     if self.namespacebrowser_button is None and self.stand_alone:
         self.namespacebrowser_button = create_toolbutton(self,
                       get_icon('dictedit.png'), self.tr("Variables"),
                       tip=self.tr("Show/hide global variables explorer"),
                       toggled=self.toggle_globals_explorer)
     if self.cwd_button is None:
         self.cwd_button = create_toolbutton(self,
                       get_std_icon('DirOpenIcon'), self.tr("Working directory"),
                       tip=self.tr("Set current working directory"),
                       triggered=self.set_current_working_directory)
     if self.terminate_button is None:
         self.terminate_button = create_toolbutton(self,
                       get_icon('terminate.png'), self.tr("Terminate"),
                       tip=self.tr("Attempts to terminate the process.\n"
                                   "The process may not exit as a result of "
                                   "clicking this button\n"
                                   "(it is given the chance to prompt "
                                   "the user for any unsaved files, etc)."))        
     buttons = [self.cwd_button]
     if self.namespacebrowser_button is not None:
         buttons.append(self.namespacebrowser_button)
     buttons += [self.run_button, self.options_button,
                 self.terminate_button, self.kill_button]
     return buttons

 def get_options_menu(self):
     ExternalShellBase.get_options_menu(self)
     self.interact_action = create_action(self, _("Interact"))
     self.interact_action.setCheckable(True)
     self.debug_action = create_action(self, _("Debug"))
     self.debug_action.setCheckable(True)
     self.args_action = create_action(self, _("Arguments..."),
                                      triggered=self.get_arguments)
     run_settings_menu = QMenu(_("Run settings"), self)
     add_actions(run_settings_menu,
                 (self.interact_action, self.debug_action, self.args_action))
     self.cwd_button = create_action(self, _("Working directory"),
                             icon=get_std_icon('DirOpenIcon'),
                             tip=_("Set current working directory"),
                             triggered=self.set_current_working_directory)
     self.env_button = create_action(self, _("Environment variables"),
                                     icon=get_icon('environ.png'),
                                     triggered=self.show_env)
     self.syspath_button = create_action(self,
                                         _("Show sys.path contents"),
                                         icon=get_icon('syspath.png'),
                                         triggered=self.show_syspath)
     actions = [run_settings_menu, self.show_time_action, None,
                self.cwd_button, self.env_button, self.syspath_button]
     if self.menu_actions is not None:
         actions += [None]+self.menu_actions
     return actions

    def __init__(self, parent=None, name_filters=['*.py', '*.pyw'],
                 valid_types=('.py', '.pyw'), show_all=False,
                 show_cd_only=None, show_toolbar=True, show_icontext=True):
        QWidget.__init__(self, parent)
        
        self.treewidget = ExplorerTreeWidget(self, show_cd_only=show_cd_only)
        self.treewidget.setup(name_filters=name_filters,
                              valid_types=valid_types, show_all=show_all)
        self.treewidget.chdir(os.getcwdu())
        
        toolbar_action = create_action(self, _("Show toolbar"),
                                       toggled=self.toggle_toolbar)
        icontext_action = create_action(self, _("Show icons and text"),
                                        toggled=self.toggle_icontext)
        self.treewidget.common_actions += [None,
                                           toolbar_action, icontext_action]
        
        # Setup toolbar
        self.toolbar = QToolBar(self)
        self.toolbar.setIconSize(QSize(16, 16))
        
        self.previous_action = create_action(self, text=_("Previous"),
                            icon=get_icon('previous.png'),
                            triggered=self.treewidget.go_to_previous_directory)
        self.toolbar.addAction(self.previous_action)
        self.previous_action.setEnabled(False)
        self.connect(self.treewidget, SIGNAL("set_previous_enabled(bool)"),
                     self.previous_action.setEnabled)
        
        self.next_action = create_action(self, text=_("Next"),
                            icon=get_icon('next.png'),
                            triggered=self.treewidget.go_to_next_directory)
        self.toolbar.addAction(self.next_action)
        self.next_action.setEnabled(False)
        self.connect(self.treewidget, SIGNAL("set_next_enabled(bool)"),
                     self.next_action.setEnabled)
        
        parent_action = create_action(self, text=_("Parent"),
                            icon=get_icon('up.png'),
                            triggered=self.treewidget.go_to_parent_directory)
        self.toolbar.addAction(parent_action)

        options_action = create_action(self, text=_("Options"),
                    icon=get_icon('tooloptions.png'))
        self.toolbar.addAction(options_action)
        widget = self.toolbar.widgetForAction(options_action)
        widget.setPopupMode(QToolButton.InstantPopup)
        menu = QMenu(self)
        add_actions(menu, self.treewidget.common_actions)
        options_action.setMenu(menu)
            
        toolbar_action.setChecked(show_toolbar)
        self.toggle_toolbar(show_toolbar)   
        icontext_action.setChecked(show_icontext)
        self.toggle_icontext(show_icontext)     
        
        vlayout = QVBoxLayout()
        vlayout.addWidget(self.toolbar)
        vlayout.addWidget(self.treewidget)
        self.setLayout(vlayout)

 def create_scedit(self, text, option, default=NoDefault, tip=None,
                   without_layout=False):
     label = QLabel(text)
     clayout = ColorLayout(QColor(Qt.black), self)
     clayout.lineedit.setMaximumWidth(80)
     if tip is not None:
         clayout.setToolTip(tip)
     cb_bold = QCheckBox()
     cb_bold.setIcon(get_icon("bold.png"))
     cb_bold.setToolTip(_("Bold"))
     cb_italic = QCheckBox()
     cb_italic.setIcon(get_icon("italic.png"))
     cb_italic.setToolTip(_("Italic"))
     self.scedits[(clayout, cb_bold, cb_italic)] = (option, default)
     if without_layout:
         return label, clayout, cb_bold, cb_italic
     layout = QHBoxLayout()
     layout.addWidget(label)
     layout.addLayout(clayout)
     layout.addSpacing(10)
     layout.addWidget(cb_bold)
     layout.addWidget(cb_italic)
     layout.addStretch(1)
     layout.setContentsMargins(0, 0, 0, 0)
     widget = QWidget(self)
     widget.setLayout(layout)
     return widget

 def setup_top_toolbar(self, layout):
     toolbar = []
     movetop_button = create_toolbutton(self,
                                 text=self.tr("Move to top"),
                                 icon=get_icon('2uparrow.png'),
                                 triggered=lambda: self.move_to(absolute=0))
     toolbar.append(movetop_button)
     moveup_button = create_toolbutton(self,
                                 text=self.tr("Move up"),
                                 icon=get_icon('1uparrow.png'),
                                 triggered=lambda: self.move_to(relative=-1))
     toolbar.append(moveup_button)
     movedown_button = create_toolbutton(self,
                                 text=self.tr("Move down"),
                                 icon=get_icon('1downarrow.png'),
                                 triggered=lambda: self.move_to(relative=1))
     toolbar.append(movedown_button)
     movebottom_button = create_toolbutton(self,
                                 text=self.tr("Move to bottom"),
                                 icon=get_icon('2downarrow.png'),
                                 triggered=lambda: self.move_to(absolute=1))
     toolbar.append(movebottom_button)
     self.selection_widgets.extend(toolbar)
     self._add_widgets_to_layout(layout, toolbar)
     return toolbar

 def __init__(self, parent):
     QWebView.__init__(self, parent)
     self.zoom_factor = 1.
     self.zoom_out_action = create_action(self, _("Zoom out"),
                                          icon=get_icon('zoom_out.png'),
                                          triggered=self.zoom_out)
     self.zoom_in_action = create_action(self, _("Zoom in"),
                                         icon=get_icon('zoom_in.png'),
                                         triggered=self.zoom_in)

 def get_toolbar_buttons(self):
     self.run_button = create_toolbutton(self, get_icon('run.png'),
                           self.tr("Run"),
                           tip=self.tr("Run again this program"),
                           triggered=self.start)
     self.kill_button = create_toolbutton(self, get_icon('kill.png'),
                           self.tr("Kill"),
                           tip=self.tr("Kills the current process, "
                                       "causing it to exit immediately"))
     return [self.run_button, self.kill_button]

 def setup_common_actions(self):
     """Setup context menu common actions"""
     collapse_act = create_action(self,
                 text=self.tr('Collapse all'),
                 icon=get_icon('collapse.png'),
                 triggered=self.collapseAll)
     expand_act = create_action(self,
                 text=self.tr('Expand all'),
                 icon=get_icon('expand.png'),
                 triggered=self.expandAll)
     return [collapse_act, expand_act]

 def populate_classes(self):
     """Populate classes"""
     self.lines = {}
     for lineno, c_name, methods in self.classes:
         item = QTreeWidgetItem(self, [c_name])
         self.lines[item] = lineno
         if methods is None:
             item.setIcon(0, get_icon('function.png'))
         else:
             item.setIcon(0, get_icon('class.png'))
         if methods:
             self.populate_methods(item, c_name, methods)

def create_action(parent, text, shortcut=None, icon=None, tip=None,
                  toggled=None, triggered=None, data=None,
                  context=Qt.WindowShortcut):
    """Create a QAction"""
    action = QAction(text, parent)
    if triggered is not None:
        parent.connect(action, SIGNAL("triggered()"), triggered)
    if toggled is not None:
        parent.connect(action, SIGNAL("toggled(bool)"), toggled)
        action.setCheckable(True)
    if icon is not None:
        if isinstance(icon, (str, unicode)):
            icon = get_icon(icon)
        action.setIcon( icon )
    if shortcut is not None:
        action.setShortcut(shortcut)
    if tip is not None:
        action.setToolTip(tip)
        action.setStatusTip(tip)
    if data is not None:
        action.setData(QVariant(data))
    #TODO: Hard-code all shortcuts and choose context=Qt.WidgetShortcut
    # (this will avoid calling shortcuts from another dockwidget
    #  since the context thing doesn't work quite well with these widgets)
    action.setShortcutContext(context)
    return action

 def populate_methods(self, parent, c_name, methods):
     """Populate methods"""
     for lineno, m_name in methods:
         decorator = m_name.startswith('@')
         if decorator:
             m_name = m_name[1:]
         item = QTreeWidgetItem(parent, [m_name])
         self.lines[item] = lineno
         if m_name.startswith('__'):
             item.setIcon(0, get_icon('private2.png'))
         elif m_name.startswith('_'):
             item.setIcon(0, get_icon('private1.png'))
         elif decorator:
             item.setIcon(0, get_icon('decorator.png'))
         else:
             item.setIcon(0, get_icon('method.png'))

    def __init__(self, parent=None):
        QDialog.__init__(self, parent)
        SizeMixin.__init__(self)

        # Destroying the C++ object right after closing the dialog box,
        # otherwise it may be garbage-collected in another QThread
        # (e.g. the editor's analysis thread in Spyder), thus leading to
        # a segmentation fault on UNIX or an application crash on Windows
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.filename = None

        self.runconfigoptions = RunConfigOptions(self)

        bbox = QDialogButtonBox(QDialogButtonBox.Cancel)
        bbox.addButton(_("Run"), QDialogButtonBox.AcceptRole)
        self.connect(bbox, SIGNAL("accepted()"), SLOT("accept()"))
        self.connect(bbox, SIGNAL("rejected()"), SLOT("reject()"))

        btnlayout = QHBoxLayout()
        btnlayout.addStretch(1)
        btnlayout.addWidget(bbox)

        layout = QVBoxLayout()
        layout.addWidget(self.runconfigoptions)
        layout.addLayout(btnlayout)
        self.setLayout(layout)

        self.setWindowIcon(get_icon("run.png"))

    def __init__(self, parent, actions=None, menu=None,
                 corner_widgets=None, menu_use_tooltips=False):
        QTabWidget.__init__(self, parent)
        
        self.setUsesScrollButtons(True)
        
        self.corner_widgets = {}
        self.menu_use_tooltips = menu_use_tooltips
        
        if menu is None:
            self.menu = QMenu(self)
            if actions:
                add_actions(self.menu, actions)
        else:
            self.menu = menu
            
        # Corner widgets
        if corner_widgets is None:
            corner_widgets = {}
        corner_widgets.setdefault(Qt.TopLeftCorner, [])
        corner_widgets.setdefault(Qt.TopRightCorner, [])
        self.browse_button = create_toolbutton(self,
                                          icon=get_icon("browse_tab.png"),
                                          tip=_("Browse tabs"))
        self.browse_tabs_menu = QMenu(self)
        self.browse_button.setMenu(self.browse_tabs_menu)
        self.browse_button.setPopupMode(self.browse_button.InstantPopup)
        self.connect(self.browse_tabs_menu, SIGNAL("aboutToShow()"),
                     self.update_browse_tabs_menu)
        corner_widgets[Qt.TopLeftCorner] += [self.browse_button]

        self.set_corner_widgets(corner_widgets)

 def _init_toolbar(self):
     super(NavigationToolbar2QT, self)._init_toolbar()
     if edit_parameters is None:
         from spyderlib.config import get_icon
         a = self.addAction(get_icon("options.svg"),
                            'Customize', self.edit_parameters)
         a.setToolTip('Edit curves line and axes parameters')