text: # -*- coding: utf-8 -*-
  # This file is part of pygal
  #
  # A python svg graph plotting library
  # Copyright © 2012-2016 Kozea
  #
  # This library is free software: you can redistribute it and/or modify it under
  # the terms of the GNU Lesser General Public License as published by the Free
  # Software Foundation, either version 3 of the License, or (at your option) any
  # later version.
  #
  # This library is distributed in the hope that it will be useful, but WITHOUT
  # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  # details.
  #
  # You should have received a copy of the GNU Lesser General Public License
  # along with pygal. If not, see <http://www.gnu.org/licenses/>.
  """Horizontal graph mixin"""
  
  from pygal.graph.graph import Graph
  from pygal.view import HorizontalLogView, HorizontalView
  
  
  class HorizontalGraph(Graph):
  
      """Horizontal graph mixin"""
  
      def __init__(self, *args, **kwargs):
          """Set the horizontal flag to True"""
          self.horizontal = True
          super(HorizontalGraph, self).__init__(*args, **kwargs)
  
      def _post_compute(self):
          """After computations transpose labels"""
          self._x_labels, self._y_labels = self._y_labels, self._x_labels
          self._x_labels_major, self._y_labels_major = (
              self._y_labels_major, self._x_labels_major)
          self._x_2nd_labels, self._y_2nd_labels = (
              self._y_2nd_labels, self._x_2nd_labels)
          self.show_y_guides, self.show_x_guides = (
              self.show_x_guides, self.show_y_guides)
  
      def _axes(self):
          """Set the _force_vertical flag when rendering axes"""
          self.view._force_vertical = True
          super(HorizontalGraph, self)._axes()
          self.view._force_vertical = False
  
      def _set_view(self):
          """Assign a horizontal view to current graph"""
          if self.logarithmic:
              view_class = HorizontalLogView
          else:
              view_class = HorizontalView
  
          self.view = view_class(
              self.width - self.margin_box.x,
              self.height - self.margin_box.y,
              self._box)
  
      def _get_x_label(self, i):
          """Convenience function to get the x_label of a value index"""
          if not self.x_labels or not self._y_labels or len(self._y_labels) <= i:
              return
          return self._y_labels[i][0]
  