"""

Will store all the functions needed to export the scale layer

"""

import sys

import copy

import settings

from helpers.transform import gen_helpers_transform

sys.path.append("..")

def gen_layer_scale(lottie, layer, layer_name="scale_layer"):

    """

    Help generate transform properties of a scale layer

    Args:

        lottie (dict) : Store transform properties in lottie format

        layer  (common.Layer.Layer) Transform properties in Synfig format

    Returns:

        (None)

    """

    animation_type = "scale_layer_zoom"

    if layer_name == "stretch_layer":

        animation_type = "stretch_layer_scale"

    center = layer.get_param("center")

    center.animate("vector")

    anchor = copy.deepcopy(center)

    # deep copy changes address of parent layer also

    anchor.parent = center.parent

    pos = center

    scale = layer.get_param("amount")  # This is scale amount

    scale.animate(animation_type)

    anchor.add_offset()

    if settings.INSIDE_PRECOMP:

        pos.add_offset()

    anchor.animate("vector", True)

    pos.animate("vector", True)

    gen_helpers_transform(lottie, pos, anchor, scale)