[clutter] Fix compiler warnings

[Emmanuele Bassi <ebassi src gnome org>]

commit 1dfc503df1085e197f291bc92a3af5495ec7f11d
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Jan 16 23:49:49 2012 +0000

    Fix compiler warnings
    
    When dereferencing GArray.data to a C structure you need a double cast
    from guint8* to void*, and then from void* to the actual type. This
    avoids compiler warnings, especially when using clang on OSX.

 clutter/clutter-script-parser.c |    3 ++-
 clutter/clutter-state.c         |   31 ++++++++++++++++---------------
 clutter/clutter-table-layout.c  |   14 +++++++-------
 clutter/clutter-timeline.c      |    2 +-
 4 files changed, 26 insertions(+), 24 deletions(-)
---
diff --git a/clutter/clutter-script-parser.c b/clutter/clutter-script-parser.c
index 43c26bf..8fa7ddd 100644
--- a/clutter/clutter-script-parser.c
+++ b/clutter/clutter-script-parser.c
@@ -2000,6 +2000,7 @@ _clutter_script_construct_object (ClutterScript *script,
   else
     {
       GList *properties = oinfo->properties;
+      GParameter *parameters = (GParameter *) (void *) params->data;
 
       /* every other object: first, we get the construction parameters */
       oinfo->properties =
@@ -2011,7 +2012,7 @@ _clutter_script_construct_object (ClutterScript *script,
 
       oinfo->object = g_object_newv (oinfo->gtype,
                                      params->len,
-                                     (GParameter *) params->data);
+                                     parameters);
 
       /* by sinking the floating reference, we make sure that the reference
        * count is correct whether the object is referenced from somewhere
diff --git a/clutter/clutter-state.c b/clutter/clutter-state.c
index 223d03a..6085b3a 100644
--- a/clutter/clutter-state.c
+++ b/clutter/clutter-state.c
@@ -1537,9 +1537,8 @@ clutter_state_get_animator (ClutterState *state,
                             const gchar  *source_state_name,
                             const gchar  *target_state_name)
 {
-  State         *target_state;
-  StateAnimator *animators;
-  gint i;
+  State *target_state;
+  guint i;
 
   g_return_val_if_fail (CLUTTER_IS_STATE (state), NULL);
 
@@ -1552,13 +1551,14 @@ clutter_state_get_animator (ClutterState *state,
   target_state = clutter_state_fetch_state (state, target_state_name, FALSE);
   if (target_state == NULL)
     return NULL;
-  
-  animators = (StateAnimator*)target_state->animators->data;
 
-  for (i = 0; animators[i].animator; i++)
+  for (i = 0; i < target_state->animators->len; i++)
     {
-      if (animators[i].source_state_name == source_state_name)
-        return animators[i].animator;
+      const StateAnimator *animator;
+
+      animator = &g_array_index (target_state->animators, StateAnimator, i);
+      if (animator->source_state_name == source_state_name)
+        return animator->animator;
     }
 
   return NULL;
@@ -1592,8 +1592,7 @@ clutter_state_set_animator (ClutterState    *state,
                             ClutterAnimator *animator)
 {
   State *target_state;
-  StateAnimator *animators;
-  gint i;
+  guint i;
 
   g_return_if_fail (CLUTTER_IS_STATE (state));
 
@@ -1604,15 +1603,17 @@ clutter_state_set_animator (ClutterState    *state,
   if (target_state == NULL)
     return;
   
-  animators = (StateAnimator *) target_state->animators->data;
-  for (i = 0; animators[i].animator; i++)
+  for (i = 0; target_state->animators->len; i++)
     {
-      if (animators[i].source_state_name == source_state_name)
+      StateAnimator *a;
+
+      a = &g_array_index (target_state->animators, StateAnimator, i);
+      if (a->source_state_name == source_state_name)
         {
-          g_object_unref (animators[i].animator);
+          g_object_unref (a->animator);
 
           if (animator != NULL)
-            animators[i].animator = g_object_ref (animator);
+            a->animator = g_object_ref (animator);
           else
             {
               /* remove the matched animator if passed NULL */
diff --git a/clutter/clutter-table-layout.c b/clutter/clutter-table-layout.c
index 7a29308..68cccf5 100644
--- a/clutter/clutter-table-layout.c
+++ b/clutter/clutter-table-layout.c
@@ -759,7 +759,7 @@ calculate_col_widths (ClutterTableLayout *self,
   update_row_col (self, container);
   g_array_set_size (priv->columns, 0);
   g_array_set_size (priv->columns, priv->n_cols);
-  columns = (DimensionData *) priv->columns->data;
+  columns = (DimensionData *) (void *) priv->columns->data;
 
   /* reset the visibility of all columns */
   priv->visible_cols = 0;
@@ -1032,8 +1032,8 @@ calculate_row_heights (ClutterTableLayout *self,
   g_array_set_size (priv->rows, 0);
   g_array_set_size (priv->rows, self->priv->n_rows);
 
-  rows = (DimensionData *) priv->rows->data;
-  columns = (DimensionData *) priv->columns->data;
+  rows = (DimensionData *) (void *) priv->rows->data;
+  columns = (DimensionData *) (void *) priv->columns->data;
 
   /* reset the visibility of all rows */
   priv->visible_rows = 0;
@@ -1334,7 +1334,7 @@ clutter_table_layout_get_preferred_width (ClutterLayoutManager *layout,
     }
 
   calculate_table_dimensions (self, container, -1, for_height);
-  columns = (DimensionData *) priv->columns->data;
+  columns = (DimensionData *) (void *) priv->columns->data;
 
   total_min_width = (priv->visible_cols - 1) * (float) priv->col_spacing;
   total_pref_width = total_min_width;
@@ -1374,7 +1374,7 @@ clutter_table_layout_get_preferred_height (ClutterLayoutManager *layout,
     }
 
   calculate_table_dimensions (self, container, for_width, -1);
-  rows = (DimensionData *) priv->rows->data;
+  rows = (DimensionData *) (void *) priv->rows->data;
 
   total_min_height = (priv->visible_rows - 1) * (float) priv->row_spacing;
   total_pref_height = total_min_height;
@@ -1439,8 +1439,8 @@ clutter_table_layout_allocate (ClutterLayoutManager   *layout,
                               box->x2 - box->x1,
                               box->y2 - box->y1);
 
-  rows = (DimensionData *) priv->rows->data;
-  columns = (DimensionData *) priv->columns->data;
+  rows = (DimensionData *) (void *) priv->rows->data;
+  columns = (DimensionData *) (void *) priv->columns->data;
 
   for (child = clutter_actor_get_first_child (actor);
        child != NULL;
diff --git a/clutter/clutter-timeline.c b/clutter/clutter-timeline.c
index 204173e..c6f68ca 100644
--- a/clutter/clutter-timeline.c
+++ b/clutter/clutter-timeline.c
@@ -1631,7 +1631,7 @@ clutter_timeline_list_markers (ClutterTimeline *timeline,
                             &data);
 
       i = data.markers->len;
-      retval = (gchar **) g_array_free (data.markers, FALSE);
+      retval = (gchar **) (void *) g_array_free (data.markers, FALSE);
     }
 
   if (n_markers)