1 files changed, 193 insertions, 0 deletions

diff --git a/libraries/evas/src/lib/canvas/evas_layer.c b/libraries/evas/src/lib/canvas/evas_layer.c
new file mode 100644
index 0000000..54e9907
--- /dev/null
+++ b/libraries/evas/src/lib/canvas/evas_layer.c
@@ -0,0 +1,193 @@
+#include "evas_common.h"
+#include "evas_private.h"
+
+static void _evas_layer_free(Evas_Layer *lay);
+
+void
+evas_object_inject(Evas_Object *obj, Evas *e)
+{
+   Evas_Layer *lay;
+
+   if (obj->in_layer) return;
+   lay = evas_layer_find(e, obj->cur.layer);
+   if (!lay)
+     {
+        lay = evas_layer_new(e);
+        lay->layer = obj->cur.layer;
+        evas_layer_add(lay);
+     }
+   lay->objects = (Evas_Object *)eina_inlist_append(EINA_INLIST_GET(lay->objects), EINA_INLIST_GET(obj));
+   lay->usage++;
+   obj->layer = lay;
+   obj->in_layer = 1;
+}
+
+void
+evas_object_release(Evas_Object *obj, int clean_layer)
+{
+   if (!obj->in_layer) return;
+   obj->layer->objects = (Evas_Object *)eina_inlist_remove(EINA_INLIST_GET(obj->layer->objects), EINA_INLIST_GET(obj));
+   obj->layer->usage--;
+   if (clean_layer)
+     {
+        if (obj->layer->usage <= 0)
+          {
+             evas_layer_del(obj->layer);
+             _evas_layer_free(obj->layer);
+          }
+     }
+   obj->layer = NULL;
+   obj->in_layer = 0;
+}
+
+Evas_Layer *
+evas_layer_new(Evas *e)
+{
+   Evas_Layer *lay;
+
+   lay = calloc(1, sizeof(Evas_Layer));
+   if (!lay) return NULL;
+   lay->evas = e;
+   return lay;
+}
+
+static void
+_evas_layer_free(Evas_Layer *lay)
+{
+   free(lay);
+}
+
+void
+evas_layer_pre_free(Evas_Layer *lay)
+{
+   Evas_Object *obj;
+
+   EINA_INLIST_FOREACH(lay->objects, obj)
+     {
+        if ((!obj->smart.parent) && (!obj->delete_me))
+          evas_object_del(obj);
+     }
+}
+
+void
+evas_layer_free_objects(Evas_Layer *lay)
+{
+   while (lay->objects)
+     {
+        Evas_Object *obj;
+
+        obj = (Evas_Object *)lay->objects;
+        evas_object_free(obj, 0);
+     }
+}
+
+void
+evas_layer_clean(Evas *e)
+{
+   Evas_Layer *tmp;
+
+   while (e->layers)
+     {
+        tmp = e->layers;
+        evas_layer_del(tmp);
+        _evas_layer_free(tmp);
+     }
+}
+
+Evas_Layer *
+evas_layer_find(Evas *e, short layer_num)
+{
+   Evas_Layer *layer;
+
+   EINA_INLIST_FOREACH(e->layers, layer)
+     {
+        if (layer->layer == layer_num) return layer;
+     }
+   return NULL;
+}
+
+void
+evas_layer_add(Evas_Layer *lay)
+{
+   Evas_Layer *layer;
+
+   EINA_INLIST_FOREACH(lay->evas->layers, layer)
+     {
+        if (layer->layer > lay->layer)
+          {
+             lay->evas->layers = (Evas_Layer *)eina_inlist_prepend_relative(EINA_INLIST_GET(lay->evas->layers),
+                                                                            EINA_INLIST_GET(lay),
+                                                                            EINA_INLIST_GET(layer));
+             return;
+          }
+     }
+   lay->evas->layers = (Evas_Layer *)eina_inlist_append(EINA_INLIST_GET(lay->evas->layers), EINA_INLIST_GET(lay));
+}
+
+void
+evas_layer_del(Evas_Layer *lay)
+{
+   Evas *e;
+
+   e = lay->evas;
+   e->layers = (Evas_Layer *)eina_inlist_remove(EINA_INLIST_GET(e->layers), EINA_INLIST_GET(lay));
+}
+
+/* public functions */
+
+EAPI void
+evas_object_layer_set(Evas_Object *obj, short l)
+{
+   Evas *e;
+
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return;
+   MAGIC_CHECK_END();
+   if (obj->delete_me) return;
+   if (evas_object_intercept_call_layer_set(obj, l)) return;
+   if (obj->smart.parent) return;
+   if (obj->cur.layer == l)
+     {
+        evas_object_raise(obj);
+        return;
+     }
+   e = obj->layer->evas;
+   evas_object_release(obj, 1);
+   obj->cur.layer = l;
+   evas_object_inject(obj, e);
+   obj->restack = 1;
+   evas_object_change(obj);
+   if (obj->clip.clipees)
+     {
+        evas_object_inform_call_restack(obj);
+        return;
+     }
+   evas_object_change(obj);
+   if (!obj->smart.smart)
+     {
+        if (evas_object_is_in_output_rect(obj,
+                                          obj->layer->evas->pointer.x,
+                                          obj->layer->evas->pointer.y, 1, 1) &&
+            obj->cur.visible)
+          if (eina_list_data_find(obj->layer->evas->pointer.object.in, obj))
+            evas_event_feed_mouse_move(obj->layer->evas,
+                                       obj->layer->evas->pointer.x,
+                                       obj->layer->evas->pointer.y,
+                                       obj->layer->evas->last_timestamp,
+                                       NULL);
+     }
+   evas_object_inform_call_restack(obj);
+}
+
+EAPI short
+evas_object_layer_get(const Evas_Object *obj)
+{
+   MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
+   return 0;
+   MAGIC_CHECK_END();
+   if (obj->smart.parent)
+     {
+        return obj->smart.parent->cur.layer;
+     }
+   return obj->cur.layer;
+}