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88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
from manimlib.constants import *
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from manimlib.mobject.geometry import Line
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from manimlib.mobject.geometry import Rectangle
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from manimlib.mobject.types.vectorized_mobject import VGroup
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from manimlib.mobject.types.vectorized_mobject import VMobject
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from manimlib.utils.color import Color
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from manimlib.utils.customization import get_customization
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from manimlib.utils.config_ops import digest_config
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class SurroundingRectangle(Rectangle):
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CONFIG = {
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"color": YELLOW,
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"buff": SMALL_BUFF,
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}
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def __init__(self, mobject, **kwargs):
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digest_config(self, kwargs)
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kwargs["width"] = mobject.get_width() + 2 * self.buff
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kwargs["height"] = mobject.get_height() + 2 * self.buff
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Rectangle.__init__(self, **kwargs)
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self.move_to(mobject)
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class BackgroundRectangle(SurroundingRectangle):
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CONFIG = {
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"stroke_width": 0,
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"stroke_opacity": 0,
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"fill_opacity": 0.75,
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"buff": 0
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}
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def __init__(self, mobject, color=None, **kwargs):
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if color is None:
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color = get_customization()['style']['background_color']
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SurroundingRectangle.__init__(self, mobject, color=color, **kwargs)
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self.original_fill_opacity = self.fill_opacity
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def pointwise_become_partial(self, mobject, a, b):
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self.set_fill(opacity=b * self.original_fill_opacity)
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return self
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def set_style_data(self,
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stroke_color=None,
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stroke_width=None,
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fill_color=None,
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fill_opacity=None,
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family=True
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):
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# Unchangeable style, except for fill_opacity
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VMobject.set_style_data(
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self,
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stroke_color=BLACK,
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stroke_width=0,
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fill_color=BLACK,
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fill_opacity=fill_opacity
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)
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return self
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def get_fill_color(self):
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return Color(self.color)
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class Cross(VGroup):
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CONFIG = {
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"stroke_color": RED,
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"stroke_width": [0, 6, 0],
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}
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def __init__(self, mobject, **kwargs):
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super().__init__(
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Line(UL, DR),
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Line(UR, DL),
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)
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self.insert_n_curves(2)
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self.replace(mobject, stretch=True)
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self.set_stroke(self.stroke_color, width=self.stroke_width)
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class Underline(Line):
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CONFIG = {
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"buff": SMALL_BUFF,
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}
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def __init__(self, mobject, **kwargs):
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super().__init__(LEFT, RIGHT, **kwargs)
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self.match_width(mobject)
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self.next_to(mobject, DOWN, buff=self.buff)
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