gtk-demo: Add row reordering to the settings demo

demos/gtk-demo/listview_settings.c

@@ -249,6 +249,50 @@ stop_search (GtkSearchEntry *entry,
     gtk_string_filter_set_search (GTK_STRING_FILTER (current_filter), "");
 }
 
+static void
+move_column (GtkListView *columns_list, gboolean down)
+{
+  GListModel *columns;
+  guint position;
+  GtkColumnViewColumn *selected;
+  GtkColumnView *view;
+
+  columns = gtk_list_view_get_model (columns_list);
+  position = gtk_single_selection_get_selected (GTK_SINGLE_SELECTION (columns));
+  selected = gtk_single_selection_get_selected_item (GTK_SINGLE_SELECTION (columns));
+  view = gtk_column_view_column_get_column_view (selected);
+ 
+  if (down && position + 1 < g_list_model_get_n_items (columns))
+    position++;
+  else if (!down && position > 0)
+    position--;
+  else
+    return;
+
+  gtk_column_view_insert_column (view, position, selected);
+  gtk_single_selection_set_selected (GTK_SINGLE_SELECTION (columns), position);
+}
+
+static void
+move_column_down (GtkListView *columns_list)
+{
+  move_column (columns_list, TRUE);
+}
+
+static void
+move_column_up (GtkListView *columns_list)
+{
+  move_column (columns_list, FALSE);
+}
+
+static void
+column_visible_toggled (GtkListItem *item, GtkToggleButton *button)
+{
+  GtkColumnViewColumn *column = gtk_list_item_get_item (item);
+
+  gtk_column_view_column_set_visible (column, gtk_toggle_button_get_active (button));
+}
+
 static GtkWidget *window = NULL;
 
 GtkWidget *
@@ -264,6 +308,8 @@ do_listview_settings (GtkWidget *do_widget)
       GtkBuilder *builder;
       GtkColumnViewColumn *name_column;
       GtkSorter *sorter;
+      GtkWidget *menubutton, *popover;
+      GtkWidget *columns_list;
 
       g_type_ensure (SETTINGS_TYPE_KEY);
 
@@ -271,10 +317,18 @@ do_listview_settings (GtkWidget *do_widget)
       gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "search_enabled", (GCallback)search_enabled);
       gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "search_changed", (GCallback)search_changed);
       gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "stop_search", (GCallback)stop_search);
+      gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "move_column_down", (GCallback)move_column_down);
+      gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "move_column_up", (GCallback)move_column_up);
+      gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope), "column_visible_toggled", (GCallback)column_visible_toggled);
 
       builder = gtk_builder_new ();
       gtk_builder_set_scope (builder, scope);
-      gtk_builder_add_from_resource (builder, "/listview_settings/listview_settings.ui", NULL);
+      {
+        g_autoptr(GError) error = NULL;
+      gtk_builder_add_from_resource (builder, "/listview_settings/listview_settings.ui", &error);
+      if (error)
+        g_warning ("%s", error->message);
+      }
 
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
       gtk_window_set_display (GTK_WINDOW (window),
@@ -307,6 +361,17 @@ do_listview_settings (GtkWidget *do_widget)
       sorter = gtk_string_sorter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name"));
       gtk_column_view_column_set_sorter (name_column, sorter);
       g_object_unref (sorter);
+
+      menubutton = GTK_WIDGET (gtk_builder_get_object (builder, "menubutton"));
+      popover = GTK_WIDGET (gtk_builder_get_object (builder, "column_popover"));
+      gtk_menu_button_set_popover (GTK_MENU_BUTTON (menubutton), popover);
+
+      columns_list = GTK_WIDGET (gtk_builder_get_object (builder, "columns_list"));
+      model = G_LIST_MODEL (gtk_single_selection_new (gtk_column_view_get_columns (GTK_COLUMN_VIEW (columnview))));
+      gtk_list_view_set_model (GTK_LIST_VIEW (columns_list), model);
+      g_object_unref (model);
+
+      g_object_unref (builder);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/listview_settings.ui

@@ -7,6 +7,11 @@
     <child type="titlebar">
       <object class="GtkHeaderBar">
         <property name="show-title-buttons">1</property>
+        <child type="end">
+          <object class="GtkMenuButton" id="menubutton">
+            <property name="icon-name">open-menu-symbolic</property>
+          </object>
+        </child>
         <child type="end">
           <object class="GtkToggleButton" id="search_button">
             <property name="icon-name">system-search-symbolic</property>
@@ -100,7 +105,7 @@
                       </object>
                     </child>
                     <child>
-                      <object class="GtkColumnViewColumn">
+                      <object class="GtkColumnViewColumn" id="value_column">
                         <property name="title">Value</property>
                         <property name="factory">
                           <object class="GtkBuilderListItemFactory">
@@ -119,6 +124,58 @@
       </object>
     </property>
   </template>
+</interface>
+                        ]]></property>
+                          </object>
+                        </property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkColumnViewColumn" id="summary_column">
+                        <property name="title">Summary</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkLabel">
+        <property name="xalign">0</property>
+        <binding name="label">
+          <lookup name="summary" type="SettingsKey">
+            <lookup name="item">GtkListItem</lookup>
+          </lookup>
+        </binding>
+      </object>
+    </property>
+  </template>
+</interface>
+                        ]]></property>
+                          </object>
+                        </property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkColumnViewColumn" id="description_column">
+                        <property name="title">Description</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkLabel">
+        <property name="xalign">0</property>
+        <binding name="label">
+          <lookup name="description" type="SettingsKey">
+            <lookup name="item">GtkListItem</lookup>
+          </lookup>
+        </binding>
+      </object>
+    </property>
+  </template>
 </interface>
                         ]]></property>
                           </object>
@@ -134,4 +191,72 @@
       </object>
     </child>
   </object>
+  <object class="GtkPopover" id="column_popover">
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkListView" id="columns_list">
+            <property name="factory">
+              <object class="GtkBuilderListItemFactory">
+                <property name="bytes"><![CDATA[
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <template class="GtkListItem">
+    <property name="child">
+      <object class="GtkBox">
+        <property name="spacing">10</property>
+        <child>
+          <object class="GtkCheckButton">
+            <signal name="toggled" handler="column_visible_toggled" object="GtkListItem"/>
+            <binding name="active">
+              <lookup name="visible" type="GtkColumnViewColumn">
+                <lookup name="item">GtkListItem</lookup>
+              </lookup>
+            </binding>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="xalign">0</property>
+            <property name="label">label</property>
+            <binding name="label">
+              <lookup name="title" type="GtkColumnViewColumn">
+                <lookup name="item">GtkListItem</lookup>
+              </lookup>
+            </binding>
+          </object>
+        </child>
+      </object>
+    </property>
+  </template>
+</interface>
+             ]]></property>
+              </object>
+            </property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkBox">
+            <property name="halign">center</property>
+            <style>
+              <class name="linked"/>
+            </style>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">go-down-symbolic</property>
+                <signal name="clicked" handler="move_column_down" object="columns_list"/>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">go-up-symbolic</property>
+                <signal name="clicked" handler="move_column_up" object="columns_list"/>
+              </object>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
 </interface>