#----------------------------------------------------------------------------- # Copyright (c) 2012 - 2019, Anaconda, Inc., and Bokeh Contributors. # All rights reserved. # # The full license is in the file LICENSE.txt, distributed with this software. #----------------------------------------------------------------------------- ''' Models for various kinds of arrow heads that can be added to Arrow annotations. ''' #----------------------------------------------------------------------------- # Boilerplate #----------------------------------------------------------------------------- from __future__ import absolute_import, division, print_function, unicode_literals import logging log = logging.getLogger(__name__) #----------------------------------------------------------------------------- # Imports #----------------------------------------------------------------------------- # Standard library imports # External imports # Bokeh imports from ..core.has_props import abstract from ..core.properties import Float, Include, Override from ..core.property_mixins import FillProps, LineProps from .annotations import Annotation #----------------------------------------------------------------------------- # Globals and constants #----------------------------------------------------------------------------- __all__ = ( 'ArrowHead', 'NormalHead', 'OpenHead', 'TeeHead', 'VeeHead', ) #----------------------------------------------------------------------------- # General API #----------------------------------------------------------------------------- [docs]@abstract class ArrowHead(Annotation): ''' Base class for arrow heads. ''' [docs]class OpenHead(ArrowHead): ''' Render an open-body arrow head. ''' size = Float(default=25, help=""" The size, in pixels, of the arrow head. """) line_props = Include(LineProps, use_prefix=False, help=""" The %s values for the arrow head outline. """) [docs]class NormalHead(ArrowHead): ''' Render a closed-body arrow head. ''' size = Float(default=25, help=""" The size, in pixels, of the arrow head. """) line_props = Include(LineProps, use_prefix=False, help=""" The %s values for the arrow head outline. """) fill_props = Include(FillProps, use_prefix=False, help=""" The %s values for the arrow head interior. """) fill_color = Override(default="black") [docs]class TeeHead(ArrowHead): ''' Render a tee-style arrow head. ''' size = Float(default=25, help=""" The size, in pixels, of the arrow head. """) line_props = Include(LineProps, use_prefix=False, help=""" The %s values for the arrow head outline. """) [docs]class VeeHead(ArrowHead): ''' Render a vee-style arrow head. ''' size = Float(default=25, help=""" The size, in pixels, of the arrow head. """) line_props = Include(LineProps, use_prefix=False, help=""" The %s values for the arrow head outline. """) fill_props = Include(FillProps, use_prefix=False, help=""" The %s values for the arrow head interior. """) fill_color = Override(default="black") #----------------------------------------------------------------------------- # Dev API #----------------------------------------------------------------------------- #----------------------------------------------------------------------------- # Private API #----------------------------------------------------------------------------- #----------------------------------------------------------------------------- # Code #-----------------------------------------------------------------------------