[libchamplain] Do not order markers according to latitude

[Jiří Techet <jiritechet src gnome org>]

commit ef58e20ce701be2200747d978bb759f8340eee5e
Author: JiÅ?í Techet <techet gmail com>
Date:   Wed Jan 5 00:07:27 2011 +0100

    Do not order markers according to latitude
    
    The marker ordering using the z coordinate causes that markers are not
    located exactly above their location - this is caused by the perspective
    projection. This also causes that the markers displayed in the front
    are bigger than the markers displayed below them. Because the previous
    ordering implementation was too slow and this implementation causes serious
    issues, this commit removes the marker ordering completely.
    
    Signed-off-by: JiÅ?í Techet <techet gmail com>

 champlain/champlain-layer.c |   59 -------------------------------------------
 1 files changed, 0 insertions(+), 59 deletions(-)
---
diff --git a/champlain/champlain-layer.c b/champlain/champlain-layer.c
index 909b54d..65598ad 100644
--- a/champlain/champlain-layer.c
+++ b/champlain/champlain-layer.c
@@ -44,12 +44,6 @@ enum
   PROP_0
 };
 
-static void layer_add_cb (ClutterGroup *layer,
-    ClutterActor *marker,
-    gpointer data);
-static void layer_remove_cb (ClutterGroup *layer,
-    ClutterActor *marker,
-    gpointer data);
 
 static void
 champlain_layer_get_property (GObject *object,
@@ -110,59 +104,6 @@ champlain_layer_class_init (ChamplainLayerClass *klass)
 static void
 champlain_layer_init (ChamplainLayer *self)
 {
-  g_signal_connect_after (G_OBJECT (self), "actor-added",
-      G_CALLBACK (layer_add_cb), NULL);
-  g_signal_connect_after (G_OBJECT (self), "actor-removed",
-      G_CALLBACK (layer_remove_cb), NULL);
-}
-
-
-/* This serves to keep the markers ordered by their latitude.
- * Markers that are up north on the map should be lowered in the list so that
- * they are drawn the first. This is to make the illusion of a semi-3d plane
- * where the most north you are, the farther you are.
- */
-static void
-set_marker_depth (GObject *marker)
-{
-  gdouble lat, z;
-  
-  g_object_get (G_OBJECT (marker), "latitude", &lat, NULL);
-  z = (lat >= 0) ? 90.0 - lat : 90.0 + lat;
-  clutter_actor_set_depth (CLUTTER_ACTOR (marker), z);
-}
-
-
-static void
-marker_position_notify (GObject *gobject,
-    G_GNUC_UNUSED GParamSpec *pspec,
-    gpointer user_data)
-{
-  set_marker_depth (gobject);
-}
-
-
-static void
-layer_add_cb (ClutterGroup *layer,
-    ClutterActor *actor,
-    G_GNUC_UNUSED gpointer data)
-{
-  ChamplainBaseMarker *marker = CHAMPLAIN_BASE_MARKER (actor);
-
-  set_marker_depth (G_OBJECT(actor));
-
-  g_signal_connect (G_OBJECT (marker), "notify::latitude",
-      G_CALLBACK (marker_position_notify), layer);
-}
-
-
-static void
-layer_remove_cb (ClutterGroup *layer,
-    ClutterActor *actor,
-    G_GNUC_UNUSED gpointer data)
-{
-  g_signal_handlers_disconnect_by_func (G_OBJECT (actor),
-      G_CALLBACK (marker_position_notify), layer);
 }