textwidget was not updating/reseting correctly

Author: max-anu

src/accessvis/widgets/text_widget.py

@@ -9,17 +9,20 @@ def __init__(self, lv, width=300, height=50, text_colour='black', background=(0,
         self.height = height
         self.text_colour = text_colour
         self.background = background
+        self.text = None
 
     def _make_mpl(self):
         fig, ax = plt.subplots(figsize=(self.width / 100, self.height / 100), dpi=100)
         fig.subplots_adjust(left=0, right=1, top=1, bottom=0)
         ax.set_axis_off()
         fig.patch.set_facecolor(self.background)
+        self.text = ax.text(0.5, 0.5, '', ha='center', va='center', fontsize=20, color=self.text_colour)
 
         return fig, ax
 
     def _update_mpl(self, fig, ax, text='', **kwargs):
-        ax.text(0.5, 0.5, text, ha='center', va='center', fontsize=20, color=self.text_colour)
+        self.text.set_text(text)
 
     def _reset_mpl(self, fig, ax, **kwargs):
-        pass
+        self.text.set_text('')
+

src/accessvis/widgets/widget_base.py

@@ -1,5 +1,7 @@
 from abc import ABC, abstractmethod
 from functools import cached_property
+
+import matplotlib.pyplot as plt
 import numpy as np
 import os
 
@@ -48,7 +50,7 @@ def remove(self):
 
 class WidgetMPL(Widget):
     @abstractmethod
-    def _make_mpl(self):
+    def _make_mpl(self) -> tuple[plt.Figure, plt.Axes]:
         # Make the basic matplotlib image
         # returns Figure, Axis
         raise NotImplementedError