Send new plot config options to IPython shells

spyder/plugins/ipythonconsole/tests/test_ipythonconsole.py

@@ -17,6 +17,7 @@
 import shutil
 import sys
 from textwrap import dedent
+from unittest.mock import patch
 
 # Third party imports
 from ipykernel._version import __version__ as ipykernel_version
@@ -1914,6 +1915,21 @@ def test_restart_intertactive_backend(ipyconsole, qtbot):
     assert bool(os.environ.get('BACKEND_REQUIRE_RESTART'))
 
 
+def test_mpl_conf(ipyconsole, qtbot):
+    """
+    Test that after setting matplotlib-related config options, the member
+    function send_mpl_backend of the shellwidget is called with the new value.
+    """
+    main_widget = ipyconsole.get_widget()
+    client = main_widget.get_current_client()
+    with patch.object(client.shellwidget, 'send_mpl_backend') as mock:
+        main_widget.set_conf('pylab/inline/fontsize', 20.5)
+    mock.assert_called_once_with({'pylab/inline/fontsize': 20.5})
+    with patch.object(client.shellwidget, 'send_mpl_backend') as mock:
+        main_widget.set_conf('pylab/inline/bottom', 0.314)
+    mock.assert_called_once_with({'pylab/inline/bottom': 0.314})
+
+
 @flaky(max_runs=3)
 @pytest.mark.no_web_widgets
 def test_no_infowidget(ipyconsole):

spyder/plugins/ipythonconsole/widgets/main_widget.py

@@ -871,6 +871,7 @@ def change_clients_autocall(self, value):
         'pylab', 'pylab/backend', 'pylab/autoload',
         'pylab/inline/figure_format', 'pylab/inline/resolution',
         'pylab/inline/width', 'pylab/inline/height',
+        'pylab/inline/fontsize', 'pylab/inline/bottom',
         'pylab/inline/bbox_inches'])
     def change_possible_restart_and_mpl_conf(self, option, value):
         """

spyder/plugins/ipythonconsole/widgets/shell.py

@@ -564,6 +564,8 @@ def send_mpl_backend(self, option=None):
         resolution_n = 'pylab/inline/resolution'
         width_n = 'pylab/inline/width'
         height_n = 'pylab/inline/height'
+        fontsize_n = 'pylab/inline/fontsize'
+        bottom_n = 'pylab/inline/bottom'
         bbox_inches_n = 'pylab/inline/bbox_inches'
         backend_o = self.get_conf(pylab_backend_n)
 
@@ -591,6 +593,18 @@ def send_mpl_backend(self, option=None):
                 if height_o is not None:
                     matplotlib_conf[height_n] = height_o
 
+            # Font size
+            fontsize_o = float(self.get_conf(fontsize_n))
+            if fontsize_o is not None and (
+                    option is None or fontsize_n in option):
+                matplotlib_conf[fontsize_n] = fontsize_o
+
+            # Bottom part
+            bottom_o = float(self.get_conf(bottom_n))
+            if bottom_o is not None and (
+                    option is None or bottom_n in option):
+                matplotlib_conf[bottom_n] = bottom_o
+
             # Print figure kwargs
             bbox_inches_o = self.get_conf(bbox_inches_n)
             if option is None or bbox_inches_n in option: