fix Sidebar to resize better

Fixes #10334
Issue #10161

gramps/gui/views/pageview.py

@@ -156,8 +156,19 @@ def build_interface(self):
         hpane = Gtk.Paned()
         vpane = Gtk.Paned(orientation=Gtk.Orientation.VERTICAL)
         hpane.pack1(vpane, resize=True, shrink=False)
-        hpane.pack2(self.sidebar, resize=False, shrink=True)
-        self._setup_slider_config(hpane, 'hpane.slider-position')
+        hpane.pack2(self.sidebar, resize=False, shrink=False)
+        # we don't know width of the pane yet, so estimate based on width of
+        # Gramps main window (left hand bar about 150 pix)
+        width = self.uistate.window.get_allocation().width - 160
+        # default will use natural size for sidebar until it gets to 400 pix
+        side_ch = self.sidebar.get_children()  # Gtk Notebook
+        try:
+            vp_ch = side_ch[0].get_children()  # Gtk Viewport child
+            ch_width = vp_ch[0].get_preferred_width()[0]
+        except AttributeError:
+            ch_width = 400  # needed if no Gramplet installed
+        pos = width - min(ch_width, 400)
+        self._setup_slider_config(hpane, 'hpane.slider-position', position=pos)
         hpane.show()
         vpane.show()
 
@@ -171,11 +182,11 @@ def build_interface(self):
 
         return hpane
 
-    def _setup_slider_config(self, widget, setting):
+    def _setup_slider_config(self, widget, setting, position=-1):
         """
         Setup the slider configuration setting.
         """
-        self._config.register(setting, -1)
+        self._config.register(setting, position)
         widget.set_position(self._config.get(setting))
         widget.connect('notify::position', self._position_changed, setting)
 

gramps/gui/widgets/grampletbar.py

@@ -370,7 +370,7 @@ def __add_tab(self, gramplet):
         """
         Add a tab to the notebook for the given gramplet.
         """
-        width = min(int(self.uistate.screen_width() * 0.25), 400)
+        width = -1  # Allow tab width to adjust (smaller) to sidebar
         height = min(int(self.uistate.screen_height() * 0.20), 400)
         gramplet.set_size_request(width, height)