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# Copyright (c) 2012 - 2022, Anaconda, Inc., and Bokeh Contributors.
# All rights reserved.
#
# The full license is in the file LICENSE.txt, distributed with this software.
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#-----------------------------------------------------------------------------
# Boilerplate
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from __future__ import annotations

import logging # isort:skip
log = logging.getLogger(__name__)

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# Imports
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# Bokeh imports
from ..core.properties import Instance, InstanceDefault
from ..model import Model
from .ranges import DataRange1d, Range
from .scales import LinearScale, Scale

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# Globals and constants
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__all__ = (
    "CoordinateMapping",
)

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# General API
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class CoordinateMapping(Model):
    """ A mapping between two coordinate systems. """

    # explicit __init__ to support Init signatures
    def __init__(self, *args, **kwargs) -> None:
        super().__init__(*args, **kwargs)

    x_source = Instance(Range, default=InstanceDefault(DataRange1d), help="""
    The source range of the horizontal dimension of the new coordinate space.
    """)

    y_source = Instance(Range, default=InstanceDefault(DataRange1d), help="""
    The source range of the vertical dimension of the new coordinate space.
    """)

    x_scale = Instance(Scale, default=InstanceDefault(LinearScale), help="""
    What kind of scale to use to convert x-coordinates from the source (data)
    space into x-coordinates in the target (possibly screen) coordinate space.
    """)

    y_scale = Instance(Scale, default=InstanceDefault(LinearScale), help="""
    What kind of scale to use to convert y-coordinates from the source (data)
    space into y-coordinates in the target (possibly screen) coordinate space.
    """)

    x_target = Instance(Range, help="""
    The horizontal range to map x-coordinates in the target coordinate space.
    """)

    y_target = Instance(Range, help="""
    The vertical range to map y-coordinates in the target coordinate space.
    """)

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# Dev API
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# Private API
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# Code
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