[empathy] Add a Best fit button to the map view (#584034)

[Guillaume Desmottes <gdesmott src gnome org>]

commit cf5784fe3e77bedfe25f3b31dff6eb92e7a580ee
Author: Olivier Le Thanh Duong <olivier lethanh be>
Date:   Thu Sep 3 16:18:39 2009 +0200

    Add a Best fit button to the map view (#584034)
    
    Add a button to the contact map view which show all the contacts at once.

 src/empathy-map-view.c  |   23 +++++++++++++++++++++++
 src/empathy-map-view.ui |   10 ++++++++++
 2 files changed, 33 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-map-view.c b/src/empathy-map-view.c
index 9eadee7..95fdabd 100644
--- a/src/empathy-map-view.c
+++ b/src/empathy-map-view.c
@@ -130,6 +130,28 @@ map_view_zoom_out_cb (GtkWidget *widget,
   champlain_view_zoom_out (window->map_view);
 }
 
+static void
+map_view_zoom_fit_cb (GtkWidget *widget,
+    EmpathyMapView *window)
+{
+  GList *item, *children;
+  GPtrArray *markers;
+
+  children = clutter_container_get_children (CLUTTER_CONTAINER (window->layer));
+  markers =  g_ptr_array_sized_new (g_list_length (children) + 1);
+
+  for (item = children; item != NULL; item = g_list_next (item))
+    g_ptr_array_add (markers, (gpointer) item->data);
+
+  g_ptr_array_add (markers, (gpointer) NULL);
+  champlain_view_ensure_markers_visible (window->map_view,
+    (ChamplainBaseMarker **) markers->pdata,
+    TRUE);
+
+  g_ptr_array_free (markers, TRUE);
+  g_list_free (children);
+}
+
 static gboolean
 marker_clicked_cb (ChamplainMarker *marker,
     ClutterButtonEvent *event,
@@ -332,6 +354,7 @@ empathy_map_view_show (void)
       "map_view", "destroy", map_view_destroy_cb,
       "zoom_in", "clicked", map_view_zoom_in_cb,
       "zoom_out", "clicked", map_view_zoom_out_cb,
+      "zoom_fit", "clicked", map_view_zoom_fit_cb,
       NULL);
 
   g_object_unref (gui);
diff --git a/src/empathy-map-view.ui b/src/empathy-map-view.ui
index 7d3e3ce..a56090e 100644
--- a/src/empathy-map-view.ui
+++ b/src/empathy-map-view.ui
@@ -35,6 +35,16 @@
               </packing>
             </child>
             <child>
+              <object class="GtkToolButton" id="zoom_fit">
+                <property name="visible">True</property>
+                <property name="stock_id">gtk-zoom-fit</property>
+              </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="homogeneous">True</property>
+              </packing>
+            </child>
+            <child>
               <object class="GtkToolItem" id="toolbutton1">
                 <property name="visible">True</property>
                 <child>