#!/usr/bin/env python
# coding: utf-8
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"""This module contains library wide configuration.
"""

__authors__ = ["V. Valls"]
__license__ = "MIT"
__date__ = "09/11/2018"


class Config(object):
    """
    Class containing shared global configuration for the silx library.

    .. versionadded:: 0.8
    """

    DEFAULT_PLOT_BACKEND = "matplotlib", "opengl"
    """Default plot backend.

    It will be used as default backend for all the next created PlotWidget.

    This attribute can be set with:

    - 'matplotlib' (default) or 'mpl'
    - 'opengl', 'gl'
    - 'none'
    - A :class:`silx.gui.plot.backend.BackendBase.BackendBase` class
    - A callable returning backend class or binding name

    If multiple backends are provided, the first available one is used.

    .. versionadded:: 0.8
    """

    DEFAULT_COLORMAP_NAME = 'gray'
    """Default LUT for the plot widgets.

    The available list of names are available in the module
    :module:`silx.gui.colors`.

    .. versionadded:: 0.8
    """

    DEFAULT_PLOT_IMAGE_Y_AXIS_ORIENTATION = 'upward'
    """Default Y-axis orientation for plot widget displaying images.

    This attribute can be set with:

    - 'upward' (default), which set the origin to the bottom with an upward
        orientation.
    - 'downward', which set the origin to the top with a backward orientation.

    It will have an influence on:

    - :class:`silx.gui.plot.StackWidget`
    - :class:`silx.gui.plot.ComplexImageView`
    - :class:`silx.gui.plot.Plot2D`
    - :class:`silx.gui.plot.ImageView`

    .. versionadded:: 0.8
    """

    DEFAULT_PLOT_CURVE_COLORS = ['#000000',  # black
                                 '#0000ff',  # blue
                                 '#ff0000',  # red
                                 '#00ff00',  # green
                                 '#ff66ff',  # pink
                                 '#ffff00',  # yellow
                                 '#a52a2a',  # brown
                                 '#00ffff',  # cyan
                                 '#ff00ff',  # magenta
                                 '#ff9900',  # orange
                                 '#6600ff',  # violet
                                 '#a0a0a4',  # grey
                                 '#000080',  # darkBlue
                                 '#800000',  # darkRed
                                 '#008000',  # darkGreen
                                 '#008080',  # darkCyan
                                 '#800080',  # darkMagenta
                                 '#808000',  # darkYellow
                                 '#660000']  # darkBrown
    """Default list of colors for plot widget displaying curves.

    It will have an influence on:

    - :class:`silx.gui.plot.PlotWidget`

    .. versionadded:: 0.9
    """

    DEFAULT_PLOT_CURVE_SYMBOL_MODE = False
    """Whether to display curves with markers or not by default in PlotWidget.

    It will have an influence on PlotWidget curve items.

    .. versionadded:: 0.10
    """

    DEFAULT_PLOT_SYMBOL = 'o'
    """Default marker of the item.

    It will have an influence on PlotWidget items

    Supported symbols:
    
        - 'o', 'Circle'
        - 'd', 'Diamond'
        - 's', 'Square'
        - '+', 'Plus'
        - 'x', 'Cross'
        - '.', 'Point'
        - ',', 'Pixel'
        - '',  'None'

    .. versionadded:: 0.10
    """

    DEFAULT_PLOT_SYMBOL_SIZE = 6.0
    """Default marker size of the item.

    It will have an influence on PlotWidget items

    .. versionadded:: 0.10
    """