New Feature: Multi-Pane Charts

- Added the create_subchart method to Chart.
- Added the SubChart class.
- Added an inner_width and inner_height parameter to Chart.
- The time_scale method can now disable the time scale completely.

Bugs:
- Fixed a bug which prevented markers from being placed on charts with a timescale less than a day.

lightweight_charts/pywebview.py

@@ -1,3 +1,5 @@
+from typing import Literal
+from uuid import UUID
 import webview
 from multiprocessing import Queue
 
@@ -9,10 +11,10 @@ _result_q = Queue()
 
 class Webview(LWC):
     def __init__(self, chart):
-        super().__init__(chart.volume_enabled)
+        super().__init__(chart.volume_enabled, chart.inner_width, chart.inner_height)
         self.chart = chart
         self.started = False
-        self._click_func_code('pywebview.api.onClick(data)')
+        self._js_api_code = 'pywebview.api.onClick'
 
         self.webview = webview.create_window('', html=self._html, on_top=chart.on_top, js_api=self._js_api,
                                              width=chart.width, height=chart.height, x=chart.x, y=chart.y)
@@ -24,8 +26,15 @@ class Webview(LWC):
         self.loaded = True
         while len(self.js_queue) > 0:
             func, args, kwargs = self.js_queue[0]
-            getattr(self, func)(*args)
+
+            if 'SUB' in func:
+                c_id = args[0]
+                args = args[1:]
+                getattr(self._subcharts[c_id], func.replace('SUB', ''))(*args)
+            else:
+                getattr(self, func)(*args)
             del self.js_queue[0]
+
         _loop(self.chart, controller=self)
 
     def show(self):
@@ -34,27 +43,40 @@ class Webview(LWC):
         else:
             webview.start(debug=self.chart.debug)
 
-    def create_line(self, color: str = 'rgba(214, 237, 255, 0.6)', width: int = 2):
-        return super().create_line(color, width).id
-
     def hide(self): self.webview.hide()
 
     def exit(self):
         self.webview.destroy()
         del self
 
+    def create_line(self, color: str = 'rgba(214, 237, 255, 0.6)', width: int = 2):
+        return super().create_line(color, width).id
+
+    def create_sub_chart(self, volume_enabled: bool = True, position: Literal['left', 'right', 'top', 'bottom'] = 'left',
+                         width: float = 0.5, height: float = 0.5, sync: bool | UUID = False):
+        return super()._pywebview_sub_chart(volume_enabled, position, width, height, sync)
+
 
 def _loop(chart, controller=None):
     wv = Webview(chart) if not controller else controller
+    chart._result_q.put(wv.id)
     while 1:
+        obj = wv
         func, args = chart._q.get()
+
+        if 'SUB' in func:
+            obj = obj._subcharts[args[0]]
+            args = args[1:]
+            func = func.replace('SUB', '')
+
         try:
-            result = getattr(wv, func)(*args)
+            result = getattr(obj, func)(*args)
         except KeyError as e:
             return
         if func == 'show':
             chart._exit.set()
         elif func == 'exit':
             chart._exit.set()
+
         chart._result_q.put(result) if result is not None else None