def test_mpl_non_interactive(self):
        """IPython v0.12 sometimes turns on mpl interactive. Ensure
           we catch that"""

        import matplotlib
        assert not matplotlib.is_interactive()
        gt = glue_terminal()
        assert not matplotlib.is_interactive()

    def new_figure_manager_given_figure(cls, num, figure):
        """
        Create a new figure manager instance for the given figure.
        """
        with _restore_foreground_window_at_end():
            window = tk.Tk(className="matplotlib")
            window.withdraw()

            # Put a mpl icon on the window rather than the default tk icon.
            # Tkinter doesn't allow colour icons on linux systems, but tk>=8.5
            # has a iconphoto command which we call directly. Source:
            # http://mail.python.org/pipermail/tkinter-discuss/2006-November/000954.html
            icon_fname = str(cbook._get_data_path('images/matplotlib.ppm'))
            icon_img = tk.PhotoImage(file=icon_fname, master=window)
            try:
                window.iconphoto(False, icon_img)
            except Exception as exc:
                # log the failure (due e.g. to Tk version), but carry on
                _log.info('Could not load matplotlib icon: %s', exc)

            canvas = cls.FigureCanvas(figure, master=window)
            manager = cls.FigureManager(canvas, num, window)
            if matplotlib.is_interactive():
                manager.show()
                canvas.draw_idle()
            return manager

def draw_if_interactive():
    '''Handle whether or not the backend is in interactive mode or not.
    '''
    if matplotlib.is_interactive():
        figManager = Gcf.get_active()
        if figManager:
            figManager.canvas.draw_idle()

def Show():
    """
    Show all figures and start the event loop if necessary
    """
    managers = GlobalFigureManager.get_all_fig_managers()
    if not managers:
        return

    for manager in managers:
        manager.show()

    # Hack: determine at runtime whether we are
    # inside ipython in pylab mode.
    from matplotlib import pyplot

    try:
        ipython_pylab = not pyplot.show._needmain
        # IPython versions >= 0.10 tack the _needmain
        # attribute onto pyplot.show, and always set
        # it to False, when in %pylab mode.
        ipython_pylab = ipython_pylab and mpl.get_backend() != 'WebAgg'
        # TODO: The above is a hack to get the WebAgg backend
        # working with ipython's `%pylab` mode until proper
        # integration is implemented.
    except AttributeError:
        ipython_pylab = False

    # Leave the following as a separate step in case we
    # want to control this behavior with an rcParam.
    if ipython_pylab:
        return

    if not mpl.is_interactive() or mpl.get_backend() == 'WebAgg':
        QAppThreadCall(mainloop)()

    def _new_figure_manager(num, *args, **kwargs):
        import pymol

        if pymol._ext_gui is None:
            return new_figure_manager(num, *args, **kwargs)

        backend_tkagg.show._needmain = False

        try:
            import Tkinter as Tk
        except ImportError:
            import tkinter as Tk

        from matplotlib.figure import Figure
        from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, FigureManagerTkAgg

        FigureClass = kwargs.pop('FigureClass', Figure)
        figure = FigureClass(*args, **kwargs)

        window = Tk.Toplevel(master=pymol._ext_gui.root)

        canvas = FigureCanvasTkAgg(figure, master=window)
        figManager = FigureManagerTkAgg(canvas, num, window)
        if matplotlib.is_interactive():
            figManager.show()
        return figManager

    def show(*args, block=None, **kwargs):
        if args or kwargs:
            cbook.warn_deprecated(
                "3.1", message="Passing arguments to show(), other than "
                "passing 'block' by keyword, is deprecated %(since)s, and "
                "support for it will be removed %(removal)s.")

        ## TODO: something to do when keyword block==False ?
        from matplotlib._pylab_helpers import Gcf

        managers = Gcf.get_all_fig_managers()
        if not managers:
            return

        interactive = is_interactive()

        for manager in managers:
            manager.show()

            # plt.figure adds an event which puts the figure in focus
            # in the activeQue. Disable this behaviour, as it results in
            # figures being put as the active figure after they have been
            # shown, even in non-interactive mode.
            if hasattr(manager, '_cidgcf'):
                manager.canvas.mpl_disconnect(manager._cidgcf)

            if not interactive and manager in Gcf._activeQue:
                Gcf._activeQue.remove(manager)

    def __init__(self, canvas, num):
        FigureManagerBase.__init__(self, canvas, num)
        self.canvas = canvas

        window = MatPlotWindow(mainWin.workSpace)
        window.setup(canvas, num)
        self.window = window


        QtCore.QObject.connect(window, QtCore.SIGNAL('destroyed()'),
                            self._widgetclosed)
        window._destroying = False

        toolbar = self._get_toolbar(canvas, window)
        window.toolbar = toolbar
        self.toolbar = toolbar
        if toolbar:
           window.mainLayout.addWidget(toolbar, 0)

        window.resize(640, 480)

        if matplotlib.is_interactive():
            window.setMinimumSize(200, 200)
            window.show()

        def notify_axes_change(fig):
           # This will be called whenever the current axes is changed
           if self.toolbar != None: self.toolbar.update()
           self.canvas.figure.add_axobserver(notify_axes_change)

    def new_figure_manager_given_figure(cls, num, figure):
        """
        Create a new figure manager instance for the given figure.
        """
        _focus = windowing.FocusManager()
        window = Tk.Tk(className="matplotlib")
        window.withdraw()

        # Put a mpl icon on the window rather than the default tk icon.
        # Tkinter doesn't allow colour icons on linux systems, but tk>=8.5 has
        # a iconphoto command which we call directly. Source:
        # http://mail.python.org/pipermail/tkinter-discuss/2006-November/000954.html
        icon_fname = os.path.join(
            rcParams['datapath'], 'images', 'matplotlib.ppm')
        icon_img = Tk.PhotoImage(file=icon_fname)
        try:
            window.tk.call('wm', 'iconphoto', window._w, icon_img)
        except Exception as exc:
            # log the failure (due e.g. to Tk version), but carry on
            _log.info('Could not load matplotlib icon: %s', exc)

        canvas = cls.FigureCanvas(figure, master=window)
        manager = cls.FigureManager(canvas, num, window)
        if matplotlib.is_interactive():
            manager.show()
            canvas.draw_idle()
        return manager

def draw_if_interactive():
    import matplotlib._pylab_helpers as pylab_helpers

    if is_interactive():
        manager = pylab_helpers.Gcf.get_active()
        if manager is not None:
            manager.show()

 def dump_match_img(qres, ibs, aid, qreq_=None, fnum=None, *args, **kwargs):
     import plottool as pt
     import matplotlib as mpl
     # Pop save kwargs from kwargs
     save_keys = ['dpi', 'figsize', 'saveax', 'fpath', 'fpath_strict', 'verbose']
     save_vals = ut.dict_take_pop(kwargs, save_keys, None)
     savekw = dict(zip(save_keys, save_vals))
     fpath = savekw.pop('fpath')
     if fpath is None and 'fpath_strict' not in savekw:
         savekw['usetitle'] = True
     was_interactive = mpl.is_interactive()
     if was_interactive:
         mpl.interactive(False)
     # Make new figure
     if fnum is None:
         fnum = pt.next_fnum()
     #fig = pt.figure(fnum=fnum, doclf=True, docla=True)
     fig = pt.plt.figure(fnum)
     fig.clf()
     # Draw Matches
     ax, xywh1, xywh2 = qres.show_matches(ibs, aid, colorbar_=False, qreq_=qreq_, fnum=fnum, **kwargs)
     if not kwargs.get('notitle', False):
         pt.set_figtitle(qres.make_smaller_title())
     # Save Figure
     # Setting fig=fig might make the dpi and figsize code not work
     img_fpath = pt.save_figure(fpath=fpath, fig=fig, **savekw)
     if was_interactive:
         mpl.interactive(was_interactive)
     pt.plt.close(fig)  # Ensure that this figure will not pop up
     #if False:
     #    ut.startfile(img_fpath)
     return img_fpath

    def __init__(self):

        self._draw_count = 0
        interactive = matplotlib.is_interactive()
        matplotlib.interactive(False)
        self.roi_callback = None

        self._draw_zoom_rect = None

        self.fig = Figure(facecolor=settings.BACKGROUND_COLOR)

        FigureCanvas.__init__(self, self.fig)
        FigureCanvas.setSizePolicy(self,
                                   QtWidgets.QSizePolicy.Expanding,
                                   QtWidgets.QSizePolicy.Expanding)

        FigureCanvas.updateGeometry(self)
        self.manager = FigureManager(self, 0)
        matplotlib.interactive(interactive)

        self._resize_timer = QtCore.QTimer()
        self._resize_timer.setInterval(250)
        self._resize_timer.setSingleShot(True)
        self._resize_timer.timeout.connect(self._on_timeout)

        self.renderer = None

def new_figure_manager_given_figure(num, figure):
    """
    Create a new figure manager instance for the given figure.
    """
    _focus = windowing.FocusManager()
    window = Tk.Tk()
    window.withdraw()

    if Tk.TkVersion >= 8.5:
        # put a mpl icon on the window rather than the default tk icon. Tkinter
        # doesn't allow colour icons on linux systems, but tk >=8.5 has a iconphoto
        # command which we call directly. Source:
        # http://mail.python.org/pipermail/tkinter-discuss/2006-November/000954.html
        icon_fname = os.path.join(rcParams['datapath'], 'images', 'matplotlib.gif')
        icon_img = Tk.PhotoImage(file=icon_fname)
        try:
            window.tk.call('wm', 'iconphoto', window._w, icon_img)
        except (SystemExit, KeyboardInterrupt):
            # re-raise exit type Exceptions
            raise
        except:
            # log the failure, but carry on
            verbose.report('Could not load matplotlib icon: %s' % sys.exc_info()[1])

    canvas = FigureCanvasTkAgg(figure, master=window)
    figManager = FigureManagerTkAgg(canvas, num, window)
    if matplotlib.is_interactive():
        figManager.show()
    return figManager

    def __init__(self, canvas, num):
        FigureManagerBase.__init__(self, canvas, num)
        self.canvas = canvas
        self.window = QtGui.QMainWindow()
        self.window.setAttribute(QtCore.Qt.WA_DeleteOnClose)

        self.window.setWindowTitle("Figure %d" % num)
        image = os.path.join(matplotlib.rcParams["datapath"], "images", "matplotlib.png")
        self.window.setWindowIcon(QtGui.QIcon(image))

        # Give the keyboard focus to the figure instead of the manager
        self.canvas.setFocusPolicy(QtCore.Qt.ClickFocus)
        self.canvas.setFocus()

        QtCore.QObject.connect(self.window, QtCore.SIGNAL("destroyed()"), self._widgetclosed)
        self.window._destroying = False

        self.toolbar = self._get_toolbar(self.canvas, self.window)
        self.window.addToolBar(self.toolbar)
        QtCore.QObject.connect(self.toolbar, QtCore.SIGNAL("message"), self.window.statusBar().showMessage)

        self.window.setCentralWidget(self.canvas)

        if matplotlib.is_interactive():
            self.window.show()

        # attach a show method to the figure for pylab ease of use
        self.canvas.figure.show = lambda *args: self.window.show()

        def notify_axes_change(fig):
            # This will be called whenever the current axes is changed
            if self.toolbar != None:
                self.toolbar.update()

        self.canvas.figure.add_axobserver(notify_axes_change)

    def __init__(self, canvas, num):
        FigureManagerBase.__init__(self, canvas, num)

        self.window = Gtk.Window()
        self.window.set_wmclass("matplotlib", "Matplotlib")
        self.set_window_title("Figure %d" % num)
        try:
            self.window.set_icon_from_file(window_icon)
        except Exception:
            # Some versions of gtk throw a glib.GError but not all, so I am not
            # sure how to catch it.  I am unhappy doing a blanket catch here,
            # but am not sure what a better way is - JDH
            _log.info('Could not load matplotlib icon: %s', sys.exc_info()[1])

        self.vbox = Gtk.Box()
        self.vbox.set_property("orientation", Gtk.Orientation.VERTICAL)
        self.window.add(self.vbox)
        self.vbox.show()

        self.canvas.show()

        self.vbox.pack_start(self.canvas, True, True, 0)
        # calculate size for window
        w = int(self.canvas.figure.bbox.width)
        h = int(self.canvas.figure.bbox.height)

        self.toolmanager = self._get_toolmanager()
        self.toolbar = self._get_toolbar()
        self.statusbar = None

        def add_widget(child, expand, fill, padding):
            child.show()
            self.vbox.pack_end(child, False, False, 0)
            size_request = child.size_request()
            return size_request.height

        if self.toolmanager:
            backend_tools.add_tools_to_manager(self.toolmanager)
            if self.toolbar:
                backend_tools.add_tools_to_container(self.toolbar)
                self.statusbar = StatusbarGTK3(self.toolmanager)
                h += add_widget(self.statusbar, False, False, 0)
                h += add_widget(Gtk.HSeparator(), False, False, 0)

        if self.toolbar is not None:
            self.toolbar.show()
            h += add_widget(self.toolbar, False, False, 0)

        self.window.set_default_size(w, h)

        def destroy(*args):
            Gcf.destroy(num)
        self.window.connect("destroy", destroy)
        self.window.connect("delete_event", destroy)
        if matplotlib.is_interactive():
            self.window.show()
            self.canvas.draw_idle()

        self.canvas.grab_focus()

def draw_if_interactive():
    """
    Is called after every pylab drawing command
    """
    if matplotlib.is_interactive():
        figManager =  Gcf.get_active()
        if figManager is not None:
            figManager.canvas.draw_idle()

 def destroy(self, *args):
     if Gcf.get_num_fig_managers()==0 and not matplotlib.is_interactive():
         if self.window is not None:
             self.window.quit()
     if self.window is not None:
         #self.toolbar.destroy()
         self.window.destroy()
         self.window = None

 def new_figure_manager_given_figure(num, figure):
     canvas = FigureCanvasNbAgg(figure)
     manager = FigureManagerNbAgg(canvas, num)
     if is_interactive():
         manager.show()
         figure.canvas.draw_idle()
     canvas.mpl_connect('close_event', lambda event: Gcf.destroy(num))
     return manager

    def __init__(self, canvas, num):
        if DEBUG:
            print("FigureManagerQT.%s" % fn_name())
        FigureManagerBase.__init__(self, canvas, num)
        self.canvas = canvas
        self.window = MainWindow()
        self.window.closing.connect(canvas.close_event)
        self.window.closing.connect(self._widgetclosed)

        self.window.setWindowTitle("Figure %d" % num)
        image = os.path.join(matplotlib.rcParams["datapath"], "images", "matplotlib.png")
        self.window.setWindowIcon(QtGui.QIcon(image))

        # Give the keyboard focus to the figure instead of the
        # manager; StrongFocus accepts both tab and click to focus and
        # will enable the canvas to process event w/o clicking.
        # ClickFocus only takes the focus is the window has been
        # clicked
        # on. http://qt-project.org/doc/qt-4.8/qt.html#FocusPolicy-enum or
        # http://doc.qt.digia.com/qt/qt.html#FocusPolicy-enum
        self.canvas.setFocusPolicy(QtCore.Qt.StrongFocus)
        self.canvas.setFocus()

        self.window._destroying = False

        self.toolbar = self._get_toolbar(self.canvas, self.window)
        if self.toolbar is not None:
            self.window.addToolBar(self.toolbar)
            self.toolbar.message.connect(self._show_message)
            tbs_height = self.toolbar.sizeHint().height()
        else:
            tbs_height = 0

        # add text label to status bar
        self.statusbar_label = QtWidgets.QLabel()
        self.window.statusBar().addWidget(self.statusbar_label)

        # resize the main window so it will display the canvas with the
        # requested size:
        cs = canvas.sizeHint()
        sbs = self.window.statusBar().sizeHint()
        self._status_and_tool_height = tbs_height + sbs.height()
        height = cs.height() + self._status_and_tool_height
        self.window.resize(cs.width(), height)

        self.window.setCentralWidget(self.canvas)

        if matplotlib.is_interactive():
            self.window.show()
            self.canvas.draw_idle()

        def notify_axes_change(fig):
            # This will be called whenever the current axes is changed
            if self.toolbar is not None:
                self.toolbar.update()

        self.canvas.figure.add_axobserver(notify_axes_change)
        self.window.raise_()

    def __init__(self, canvas, num):
        if _debug:
            print("FigureManagerGTK.%s" % fn_name())
        FigureManagerBase.__init__(self, canvas, num)

        self.window = gtk.Window()
        self.window.set_title("Figure %d" % num)
        if window_icon:
            try:
                self.window.set_icon_from_file(window_icon)
            except:
                # some versions of gtk throw a glib.GError but not
                # all, so I am not sure how to catch it.  I am unhappy
                # diong a blanket catch here, but an not sure what a
                # better way is - JDH
                verbose.report("Could not load matplotlib icon: %s" % sys.exc_info()[1])

        self.vbox = gtk.VBox()
        self.window.add(self.vbox)
        self.vbox.show()

        self.canvas.show()

        # attach a show method to the figure  for pylab ease of use
        self.canvas.figure.show = lambda *args: self.window.show()

        self.vbox.pack_start(self.canvas, True, True)

        self.toolbar = self._get_toolbar(canvas)

        # calculate size for window
        w = int(self.canvas.figure.bbox.width)
        h = int(self.canvas.figure.bbox.height)

        if self.toolbar is not None:
            self.toolbar.show()
            self.vbox.pack_end(self.toolbar, False, False)

            tb_w, tb_h = self.toolbar.size_request()
            h += tb_h
        self.window.set_default_size(w, h)

        def destroy(*args):
            Gcf.destroy(num)

        self.window.connect("destroy", destroy)
        self.window.connect("delete_event", destroy)
        if matplotlib.is_interactive():
            self.window.show()

        def notify_axes_change(fig):
            "this will be called whenever the current axes is changed"
            if self.toolbar is not None:
                self.toolbar.update()

        self.canvas.figure.add_axobserver(notify_axes_change)

        self.canvas.grab_focus()

def new_figure_manager_given_figure(num, figure):
    """
    Create a new figure manager instance for the given figure.
    """
    frame = FigureFrameWxAgg(num, figure)
    figmgr = frame.get_figure_manager()
    if matplotlib.is_interactive():
        figmgr.frame.Show()
    return figmgr