b60e9705cb
- Fixed a bug that did not size the multi pane charts correctly. - Implementation of the ‘grid’ common method.
83 lines
2.5 KiB
Python
83 lines
2.5 KiB
Python
from typing import Literal, Union
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from uuid import UUID
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import webview
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from multiprocessing import Queue
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from lightweight_charts.js import LWC
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_q = Queue()
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_result_q = Queue()
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class Webview(LWC):
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def __init__(self, chart):
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super().__init__(chart.volume_enabled, chart.inner_width, chart.inner_height)
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self.chart = chart
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self.started = False
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self._js_api_code = 'pywebview.api.onClick'
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self.webview = webview.create_window('', html=self._html, on_top=chart.on_top, js_api=self._js_api,
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width=chart.width, height=chart.height, x=chart.x, y=chart.y)
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self.webview.events.loaded += self._on_js_load
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def run_script(self, script): self.webview.evaluate_js(script)
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def _on_js_load(self):
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self.loaded = True
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while len(self.js_queue) > 0:
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func, args, kwargs = self.js_queue[0]
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if 'SUB' in func:
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c_id = args[0]
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args = args[1:]
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getattr(self._subcharts[c_id], func.replace('SUB', ''))(*args)
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else:
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getattr(self, func)(*args)
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del self.js_queue[0]
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_loop(self.chart, controller=self)
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def show(self):
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if self.loaded:
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self.webview.show()
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else:
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webview.start(debug=self.chart.debug)
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def hide(self): self.webview.hide()
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def exit(self):
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self.webview.destroy()
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del self
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def create_line(self, color: str = 'rgba(214, 237, 255, 0.6)', width: int = 2):
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return super().create_line(color, width).id
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def create_subchart(self, volume_enabled: bool = True, position: Literal['left', 'right', 'top', 'bottom'] = 'left',
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width: float = 0.5, height: float = 0.5, sync: Union[bool, UUID] = False):
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return super()._pywebview_subchart(volume_enabled, position, width, height, sync)
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def _loop(chart, controller=None):
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wv = Webview(chart) if not controller else controller
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chart._result_q.put(wv.id)
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while 1:
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obj = wv
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func, args = chart._q.get()
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if 'SUB' in func:
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obj = obj._subcharts[args[0]]
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args = args[1:]
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func = func.replace('SUB', '')
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try:
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result = getattr(obj, func)(*args)
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except KeyError as e:
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return
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if func == 'show':
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chart._exit.set()
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elif func == 'exit':
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chart._exit.set()
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chart._result_q.put(result) if result is not None else None
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