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opacity support for create_histogram and helpers

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This commit is contained in:
David Brazda
2024-06-12 18:31:12 +02:00
parent 3845cd1091
commit 8a0fac3c9d
4 changed files with 45 additions and 5 deletions
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6
lightweight_charts/abstract.py
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@ -14,7 +14,7 @@ from .topbar import TopBar
from .util import (
BulkRunScript, Pane, Events, IDGen, as_enum, jbool, js_json, TIME, NUM, FLOAT,
LINE_STYLE, MARKER_POSITION, MARKER_SHAPE, CROSSHAIR_MODE, MARKER_TYPE,
PRICE_SCALE_MODE, marker_position, marker_shape, js_data, is_vbt_indicator
PRICE_SCALE_MODE, marker_position, marker_shape, js_data, is_vbt_indicator, apply_opacity
)
current_dir = os.path.dirname(os.path.abspath(__file__))
@ -913,13 +913,15 @@ class AbstractChart(Candlestick, Pane):
def create_histogram(
self, name: str = '', color: str = None,
price_line: bool = False, price_label: bool = True,
scale_margin_top: float = 0.0, scale_margin_bottom: float = 0.0
scale_margin_top: float = 0.0, scale_margin_bottom: float = 0.0, opacity: float = None,
) -> Histogram:
"""
Creates and returns a Histogram object.
"""
if color is None:
color = get_next_color()
if opacity is not None:
color = apply_opacity(color, opacity)
return Histogram(
self, name, color, price_line, price_label,
scale_margin_top, scale_margin_bottom)