Set data that is displayed in each step of the tour.

def _set_data(self):
        """Set data that is displayed in each step of the tour."""
        self.setting_data = True
        step, steps, frames = self.step_current, self.steps, self.frames
        current = '{0}/{1}'.format(step + 1, steps)
        frame = frames[step]

        combobox_frames = [u"{0}. {1}".format(i+1, f['title'])
                           for i, f in enumerate(frames)]

        title, content, image = '', '', None
        widgets, dockwidgets, decoration = None, None, None
        run = None

        # Check if entry exists in dic and act accordingly
        if 'title' in frame:
            title = frame['title']

        if 'content' in frame:
            content = frame['content']

        if 'widgets' in frame:
            widget_names = frames[step]['widgets']
            # Get the widgets based on their name
            widgets, dockwidgets = self._process_widgets(widget_names,
                                                         self.spy_window)
        self.widgets = widgets
        self.dockwidgets = dockwidgets

        if 'decoration' in frame:
            widget_names = frames[step]['decoration']
            deco, decoration = self._process_widgets(widget_names,
                                                     self.spy_window)
            self.decoration = decoration

        if 'image' in frame:
            image = frames[step]['image']

        if 'interact' in frame:
            self.canvas.set_interaction(frame['interact'])
            if frame['interact']:
                self._set_modal(False, [self.tips])
            else:
                self._set_modal(True, [self.tips])
        else:
            self.canvas.set_interaction(False)
            self._set_modal(True, [self.tips])

        if 'run' in frame:
            # Asume that the frist widget is the console
            run = frame['run']
            self.run = run

        self.tips.set_data(title, content, current, image, run,
                           frames=combobox_frames, step=step)
        self._check_buttons()

        # Make canvas black when starting a new place of decoration
        self.canvas.update_widgets(dockwidgets)
        self.canvas.update_decoration(decoration)
        self.setting_data = False