Don't push axes state if it wasn't edited.

anntzer · anntzer · commit d601ad1f893c · 2017-08-10T06:18:30.000-07:00
Thanks to @tacaswell for fixing the case where the multiple edits are applied consecutively.
diff --git a/lib/matplotlib/backends/qt_editor/figureoptions.py b/lib/matplotlib/backends/qt_editor/figureoptions.py
@@ -47,6 +47,7 @@ def figure_edit(axes, parent=None):
     sep = (None, None)  # separator
 
     # Get / General
+    # Cast to builtin floats as they have nicer reprs.
     xmin, xmax = map(float, axes.get_xlim())
     ymin, ymax = map(float, axes.get_ylim())
     general = [('Title', axes.get_title()),
@@ -177,6 +178,9 @@ def prepare_data(d, init):
 
     def apply_callback(data):
         """This function will be called to apply changes"""
+        orig_xlim = axes.get_xlim()
+        orig_ylim = axes.get_ylim()
+
         general = data.pop(0)
         curves = data.pop(0) if has_curve else []
         images = data.pop(0) if has_image else []
@@ -248,7 +252,8 @@ def apply_callback(data):
         # Redraw
         figure = axes.get_figure()
         figure.canvas.draw()
-        figure.canvas.toolbar.push_current()
+        if not (axes.get_xlim() == orig_xlim and axes.get_ylim() == orig_ylim):
+            figure.canvas.toolbar.push_current()
 
     data = formlayout.fedit(datalist, title="Figure options", parent=parent,
                             icon=get_icon('qt4_editor_options.svg'),
