[gnome-control-center] display: Use a HdyColumn

[Benjamin Berg <bberg src gnome org>]

commit ba6106dfca11e0c5055603a47595ef945bb1bc1b
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Jan 29 17:20:06 2019 +0100

    display: Use a HdyColumn
    
    This allows the panel to better adapt to the available width.

 panels/display/cc-display-panel.ui | 41 +++++++-------------------------------
 1 file changed, 7 insertions(+), 34 deletions(-)
---
diff --git a/panels/display/cc-display-panel.ui b/panels/display/cc-display-panel.ui
index f76b4fed1..4695102d0 100644
--- a/panels/display/cc-display-panel.ui
+++ b/panels/display/cc-display-panel.ui
@@ -47,31 +47,21 @@
             <property name="can_focus">False</property>
             <property name="shadow_type">none</property>
             <child>
-              <object class="GtkBox">
+              <object class="HdyColumn">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="valign">start</property>
+                <property name="maximum_width">600</property>
+                <property name="linear_growth_width">400</property>
+                <property name="margin_top">32</property>
+                <property name="margin_bottom">32</property>
+                <property name="margin_start">12</property>
+                <property name="margin_end">12</property>
                 <child>
                   <object class="GtkBox">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="hexpand">True</property>
-                  </object>
-                  <packing>
-                    <property name="expand">False</property>
-                    <property name="fill">True</property>
-                    <property name="position">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkBox">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
-                    <property name="margin_start">18</property>
-                    <property name="margin_end">18</property>
-                    <property name="margin_top">32</property>
-                    <property name="margin_bottom">32</property>
-                    <property name="hexpand">True</property>
                     <property name="orientation">vertical</property>
                     <property name="spacing">32</property>
                     <child>
@@ -510,23 +500,6 @@
                       </packing>
                     </child>
                   </object>
-                  <packing>
-                    <property name="expand">False</property>
-                    <property name="fill">True</property>
-                    <property name="position">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkBox">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
-                    <property name="hexpand">True</property>
-                  </object>
-                  <packing>
-                    <property name="expand">False</property>
-                    <property name="fill">True</property>
-                    <property name="position">2</property>
-                  </packing>
                 </child>
               </object>
             </child>