Enable various animations

Author: VesnaT

Orange/widgets/visualize/owscatterplotgraph.py

@@ -737,18 +737,21 @@ def update_sizes(self):
             diff = size_data - current_size_data
 
             class Timeout:
-                n_iter = 5
+                factors = [0.2, 0.4, 0.6, 0.8, 1.0]
 
-                def __init__(self, diff_=diff, item=self.scatterplot_item,
+                def __init__(self, diff_=diff, old_sizes=current_size_data,
+                             item=self.scatterplot_item,
                              item_sel=self.scatterplot_item_sel):
                     self._counter = 0
-                    self._step = diff_ / self.n_iter
+                    self._diff = diff_
+                    self._old_sizes = old_sizes.copy()
                     self._scatter_item, self._scatter_item_sel = item, item_sel
 
                 def __call__(self):
+                    factor = self.factors[self._counter]
                     self._counter += 1
-                    size = current_size_data + self._step
-                    if self.n_iter == self._counter:
+                    size = self._old_sizes + self._diff * factor
+                    if len(self.factors) == self._counter:
                         tmr.stop()
                         size = size_data
                     self._scatter_item.setSize(size)