06b605d3a7
Tables Feature - Added the `create_table` method, which returns a `Table` object. This can be used to display watchlists, order windows, position windows and more. - See the new page on the docs for more information! Bugs - Fixed a bug preventing the named column of a line to not work as a label of the series. - Fixed a bug causing drawings loaded from the minute timeframe to not show on a daily timeframe. - Fixed a bug causing `chart.exit` to not work. - Fixed a bug preventing the chart from being moved after placing a ray. - Fixed the ‘price in hoveringOver’ web console error. Enhancements - The date/time column can also be the `name` of the passed series object. - Added the `label` method to `HorizontalLine`, allowing for the price line label of horizontal lines to be updated. - `None` or an empty DataFrame can now be passed to `line.set` as a means to clear it. - Seperate Chart objects will now run on the same pywebview instance. This means that any Chart objects created after the first will inherit the first Chart’s API. - Reorganized the documentation for clarity.
78 lines
2.9 KiB
Python
78 lines
2.9 KiB
Python
import random
|
|
from typing import Union
|
|
|
|
from lightweight_charts.util import _js_bool
|
|
|
|
|
|
class Footer:
|
|
def __init__(self, table):
|
|
self._table = table
|
|
self._chart = table._chart
|
|
|
|
def __setitem__(self, key, value): self._chart.run_script(f'{self._table.id}.footer[{key}].innerText = "{value}"')
|
|
|
|
def __call__(self, number_of_text_boxes): self._chart.run_script(f'{self._table.id}.makeFooter({number_of_text_boxes})')
|
|
|
|
|
|
class Row(dict):
|
|
def __init__(self, table, id, items):
|
|
super().__init__()
|
|
self._table = table
|
|
self._chart = table._chart
|
|
self.id = id
|
|
self.meta = {}
|
|
self._table._chart.run_script(f'''{self._table.id}.newRow({list(items.values())}, '{self.id}')''')
|
|
for key, val in items.items():
|
|
self[key] = val
|
|
|
|
def __setitem__(self, column, value):
|
|
str_value = str(value)
|
|
if column in self._table._formatters:
|
|
str_value = self._table._formatters[column].replace(self._table.VALUE, str_value)
|
|
self._chart.run_script(f'''{self._table.id}.updateCell('{self.id}', '{column}', '{str_value}')''')
|
|
|
|
return super().__setitem__(column, value)
|
|
|
|
def background_color(self, column, color):
|
|
self._chart.run_script(f"{self._table.id}.rows[{self.id}]['{column}'].style.backgroundColor = '{color}'")
|
|
|
|
def delete(self):
|
|
self._chart.run_script(f"{self._table.id}.deleteRow('{self.id}')")
|
|
self._table.pop(self.id)
|
|
|
|
class Table(dict):
|
|
VALUE = 'CELL__~__VALUE__~__PLACEHOLDER'
|
|
|
|
def __init__(self, chart, width, height, headings, widths=None, alignments=None, position='left', draggable=False, method=None):
|
|
super().__init__()
|
|
self._chart = chart
|
|
self.headings = headings
|
|
self._formatters = {}
|
|
self.is_shown = True
|
|
|
|
self.id = self._chart._rand.generate()
|
|
self._chart.run_script(f'''
|
|
{self.id} = new Table({width}, {height}, {list(headings)}, {list(widths)}, {list(alignments)}, '{position}', {_js_bool(draggable)}, '{method}', {chart.id})
|
|
''')
|
|
self.footer = Footer(self)
|
|
|
|
def new_row(self, *values, id=None) -> Row:
|
|
row_id = random.randint(0, 99_999_999) if not id else id
|
|
self[row_id] = Row(self, row_id, {heading: item for heading, item in zip(self.headings, values)})
|
|
return self[row_id]
|
|
|
|
def clear(self): self._chart.run_script(f"{self.id}.clearRows()"), super().clear()
|
|
|
|
def get(self, __key: Union[int, str]) -> Row: return super().get(int(__key))
|
|
|
|
def __getitem__(self, item): return super().__getitem__(int(item))
|
|
|
|
def format(self, column: str, format_str: str): self._formatters[column] = format_str
|
|
|
|
def visible(self, visible: bool):
|
|
self.is_shown = visible
|
|
self._chart.run_script(f"""
|
|
{self.id}.container.style.display = '{'block' if visible else 'none'}'
|
|
{self.id}.container.{'add' if visible else 'remove'}EventListener('mousedown', {self.id}.onMouseDown)
|
|
""")
|