def bordered_group(
self,
*children: Mobject,
border_attrs: Optional[Dict] = None,
title: Optional[str] = None,
title_attrs: Optional[Dict] = None,
):
group = VGroup(*children)
width = (
abs(max(child.get_x(RIGHT) for child in children) - min(child.get_x(LEFT) for child in children)) + 1.2
)
height = abs(max(child.get_y(UP) for child in children) - min(child.get_y(DOWN) for child in children)) + 1.2
rect = Rectangle(**_merge(border_attrs, width=width, height=height))
rect.move_to(group.get_center_of_mass())
group.add_to_back(rect)
if title:
label = self.text_box(
title, **_merge(title_attrs, bg_color=BLACK, border_color=BLACK, rounded=False, shadow=False)
)
label.scale(0.8)
label.move_to(group.get_top())
group.add(label)
return group
def _box(
self,
parent: VGroup,
bg_color,
color,
rounded,
shadow,
text,
wrap_at,
border_color,
text_attrs: Optional[dict],
border_builder: Callable[[Text], Polygon],
) -> VGroup:
if wrap_at:
text = "\n".join(wrap(text, wrap_at))
title = Text(text, font=self.text_font, color=color, **(text_attrs if text_attrs else {}))
border = border_builder(title)
border.set_color(border_color)
bg_color, bg_opacity = self._color_and_opacity(bg_color, text)
border.set_fill(color=bg_color, opacity=bg_opacity)
if rounded:
border.round_corners(ROUNDED_RADIUS)
title.move_to(border)
parent.add(border, title)
if shadow and bg_opacity:
s_rect = border.copy()
s_rect.set_color(SHADOW_COLOR)
shadow_opacity = SHADOW_OPACITY
s_rect.set_stroke(width=0)
s_rect.set_background_stroke(color=GREEN, opacity=shadow_opacity, width=0)
s_rect.set_fill(opacity=shadow_opacity)
s_rect.scale(1 + SHADOW_SHIFT)
s_rect.shift(SHADOW_SHIFT * DR)
parent.add_to_back(s_rect)
return parent
