@@ -22,13 +22,14 @@ class SliderValueFeature(GraphicFeature):
2222
2323 **pick info**
2424
25- +-----------------+----------------------------------------------------------------+
26- | key | value |
27- +=================+================================================================+
28- | "new_data" | the new slider position in world coordinates |
29- | "graphic_index" | the graphic data index that corresponds to the slider position |
30- | "world_object" | parent world object |
31- +-----------------+----------------------------------------------------------------+
25+ +------------------+----------------------------------------------------------------+
26+ | key | value |
27+ +==================+================================================================+
28+ | "new_data" | the new slider position in world coordinates |
29+ | "selected_index" | the graphic data index that corresponds to the slider position |
30+ | "world_object" | parent world object |
31+ | "graphic" | LineSlider instance |
32+ +------------------+----------------------------------------------------------------+
3233
3334 """
3435 def __init__ (self , parent , axis : str , value : float ):
@@ -59,7 +60,8 @@ def _feature_changed(self, key: Union[int, slice, Tuple[slice]], new_data: Any):
5960 "collection-index" : self ._collection_index ,
6061 "world_object" : self ._parent .world_object ,
6162 "new_data" : new_data ,
62- "graphic_index" : g_ix
63+ "selected_index" : g_ix ,
64+ "graphic" : self ._parent
6365 }
6466
6567 event_data = FeatureEvent (type = "slider" , pick_info = pick_info )
@@ -189,6 +191,7 @@ def _setup_ipywidget_slider(self, widget):
189191 widget .value = int (self .value ())
190192 widget .observe (self ._ipywidget_callback , "value" )
191193 self .value .add_event_handler (self ._update_ipywidget )
194+ self ._plot_area .renderer .add_event_handler (self ._set_slider_layout , "resize" )
192195
193196 def _update_ipywidget (self , ev ):
194197 # update the ipywidget slider value when LineSlider value changes
@@ -203,6 +206,11 @@ def _ipywidget_callback(self, change):
203206
204207 self .value = change ["new" ]
205208
209+ def _set_slider_layout (self , * args ):
210+ w , h = self ._plot_area .renderer .logical_size
211+
212+ self .ipywidget_slider .layout = ipywidgets .Layout (width = f"{ w } )
213+
206214 def make_ipywidget_slider (self , kind : str = "IntSlider" , ** kwargs ):
207215 """
208216 Makes and returns an ipywidget slider that is associated to this LineSlider
@@ -271,9 +279,9 @@ def get_selected_index(self, graphic: Graphic = None) -> int:
271279 idx = np .searchsorted (to_search , find_value , side = "left" )
272280
273281 if idx > 0 and (idx == len (to_search ) or math .fabs (find_value - to_search [idx - 1 ]) < math .fabs (find_value - to_search [idx ])):
274- return idx - 1
282+ return int ( idx - 1 )
275283 else :
276- return idx
284+ return int ( idx )
277285
278286 def _get_source (self , graphic ):
279287 if self .parent is None and graphic is None :
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