dwker/lightweight-charts-python
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

implement table row click callbacks for individual cells

Browse Source 
update docs
This commit is contained in:
louisnw
2023-10-04 19:32:46 +01:00
parent f5ad8613f4
commit ab251a7600
6 changed files with 80 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
lightweight_charts/abstract.py
View File

@ -85,15 +85,17 @@ class Window:
return
self.scripts.append(script) if not run_last else self.final_scripts.append(script)
def create_table(self, width: NUM, height: NUM, headings: tuple, widths: tuple = None,
alignments: tuple = None, position: FLOAT = 'left', draggable: bool = False,
background_color: str = '#121417', border_color: str = 'rgb(70, 70, 70)',
border_width: int = 1, heading_text_colors: tuple = None,
heading_background_colors: tuple = None, func: callable = None
) -> 'Table':
def create_table(
self, width: NUM, height: NUM, headings: tuple, widths: tuple = None,
alignments: tuple = None, position: FLOAT = 'left', draggable: bool = False,
background_color: str = '#121417', border_color: str = 'rgb(70, 70, 70)',
border_width: int = 1, heading_text_colors: tuple = None,
heading_background_colors: tuple = None, return_clicked_cells: bool = False,
func: callable = None
) -> 'Table':
return Table(self, width, height, headings, widths, alignments, position, draggable,
background_color, border_color, border_width, heading_text_colors,
heading_background_colors, func)
heading_background_colors, return_clicked_cells, func)
def create_subchart(self, position: FLOAT = 'left', width: float = 0.5, height: float = 0.5,
sync_id: str = None, scale_candles_only: bool = False, toolbox: bool = False
@ -916,14 +918,16 @@ class AbstractChart(Candlestick, Pane):
self.win.handlers[f'{modifier_key, keys}'] = func
def create_table(
self, width: NUM, height: NUM, headings: tuple, widths: tuple = None, alignments: tuple = None,
position: FLOAT = 'left', draggable: bool = False, background_color: str = '#121417',
border_color: str = 'rgb(70, 70, 70)', border_width: int = 1, heading_text_colors: tuple = None,
heading_background_colors: tuple = None, func: callable = None
) -> Table:
self, width: NUM, height: NUM, headings: tuple, widths: tuple = None,
alignments: tuple = None, position: FLOAT = 'left', draggable: bool = False,
background_color: str = '#121417', border_color: str = 'rgb(70, 70, 70)',
border_width: int = 1, heading_text_colors: tuple = None,
heading_background_colors: tuple = None, return_clicked_cells: bool = False,
func: callable = None
) -> Table:
return self.win.create_table(width, height, headings, widths, alignments, position, draggable,
background_color, border_color, border_width, heading_text_colors,
heading_background_colors, func)
heading_background_colors, return_clicked_cells, func)
def screenshot(self) -> bytes:
"""

32
lightweight_charts/js/table.js
View File

@ -91,23 +91,35 @@ if (!window.Table) {
}
newRow(id) {
let row = this.table.insertRow()
row.style.cursor = 'default'
for (let i = 0; i < this.headings.length; i++) {
row[this.headings[i]] = row.insertCell()
row[this.headings[i]].style.width = this.widths[i];
row[this.headings[i]].style.textAlign = this.alignments[i];
row[this.headings[i]].style.border = this.borderWidth+'px solid '+this.borderColor
addRowEventListener(row, id, isCell= false) {
if (isCell) {
id = `${id};;;${isCell}`
}
row.addEventListener('mouseover', () => row.style.backgroundColor = 'rgba(60, 60, 60, 0.6)')
row.addEventListener('mouseout', () => row.style.backgroundColor = 'transparent')
row.addEventListener('mousedown', () => row.style.backgroundColor = 'rgba(60, 60, 60)')
row.addEventListener('click', () => window.callbackFunction(`${this.callbackName}_~_${id}`))
row.addEventListener('mouseup', () => row.style.backgroundColor = 'rgba(60, 60, 60, 0.6)')
}
newRow(id, returnClickedCell=false) {
let row = this.table.insertRow()
row.style.cursor = 'default'
for (let i = 0; i < this.headings.length; i++) {
let cell = row.insertCell()
cell.style.width = this.widths[i];
cell.style.textAlign = this.alignments[i];
cell.style.border = this.borderWidth+'px solid '+this.borderColor
if (returnClickedCell) {
this.addRowEventListener(cell, id, this.headings[i])
}
row[this.headings[i]] = cell
}
if (!returnClickedCell) {
this.addRowEventListener(row, id, false)
}
this.rows[id] = row
}

12
lightweight_charts/table.py
View File

@ -23,7 +23,7 @@ class Row(dict):
self._table = table
self.id = id
self.meta = {}
self.run_script(f'{self._table.id}.newRow("{self.id}")')
self.run_script(f'{self._table.id}.newRow("{self.id}", {jbool(table.return_clicked_cells)})')
for key, val in items.items():
self[key] = val
@ -56,14 +56,20 @@ class Table(Pane, dict):
alignments: tuple = None, position='left', draggable: bool = False,
background_color: str = '#121417', border_color: str = 'rgb(70, 70, 70)',
border_width: int = 1, heading_text_colors: tuple = None,
heading_background_colors: tuple = None, func: callable = None
heading_background_colors: tuple = None, return_clicked_cells: bool = False,
func: callable = None
):
dict.__init__(self)
Pane.__init__(self, window)
self._formatters = {}
self.headings = headings
self.is_shown = True
self.win.handlers[self.id] = lambda rId: func(self[rId])
if return_clicked_cells:
self.win.handlers[self.id] = lambda rId, cId: func(self[rId], cId)
else:
self.win.handlers[self.id] = lambda rId: func(self[rId])
self.return_clicked_cells = return_clicked_cells
headings = list(headings)
widths = list(widths) if widths else []
alignments = list(alignments) if alignments else []