1 files changed, 465 insertions, 0 deletions

diff --git a/libraries/evas/src/lib/canvas/evas_object_grid.c b/libraries/evas/src/lib/canvas/evas_object_grid.c
new file mode 100644
index 0000000..ac96f04
--- /dev/null
+++ b/libraries/evas/src/lib/canvas/evas_object_grid.c
@@ -0,0 +1,465 @@
+#include <errno.h>
+#include "evas_common.h"
+
+typedef struct _Evas_Object_Grid_Data       Evas_Object_Grid_Data;
+typedef struct _Evas_Object_Grid_Option     Evas_Object_Grid_Option;
+typedef struct _Evas_Object_Grid_Iterator   Evas_Object_Grid_Iterator;
+typedef struct _Evas_Object_Grid_Accessor   Evas_Object_Grid_Accessor;
+
+struct _Evas_Object_Grid_Option
+{
+   Evas_Object *obj;
+   Eina_List *l;
+   int x, y, w, h;
+};
+
+struct _Evas_Object_Grid_Data
+{
+   Evas_Object_Smart_Clipped_Data base;
+   Eina_List *children;
+   struct {
+      int w, h;
+   } size;
+   Eina_Bool is_mirrored : 1;
+};
+
+struct _Evas_Object_Grid_Iterator
+{
+   Eina_Iterator iterator;
+
+   Eina_Iterator *real_iterator;
+   const Evas_Object *grid;
+};
+
+struct _Evas_Object_Grid_Accessor
+{
+   Eina_Accessor accessor;
+
+   Eina_Accessor *real_accessor;
+   const Evas_Object *grid;
+};
+
+#define EVAS_OBJECT_GRID_DATA_GET(o, ptr)                       \
+  Evas_Object_Grid_Data *ptr = evas_object_smart_data_get(o)
+
+#define EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, ptr)                     \
+  EVAS_OBJECT_GRID_DATA_GET(o, ptr);                                    \
+  if (!ptr)                                                             \
+    {                                                                   \
+      CRIT("no widget data for object %p (%s)",                         \
+           o, evas_object_type_get(o));                                 \
+       abort();                                                         \
+       return;                                                          \
+    }
+
+#define EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, ptr, val)            \
+  EVAS_OBJECT_GRID_DATA_GET(o, ptr);                                    \
+  if (!ptr)                                                             \
+    {                                                                   \
+       CRIT("No widget data for object %p (%s)",                        \
+               o, evas_object_type_get(o));                             \
+       abort();                                                         \
+       return val;                                                      \
+    }
+
+static const char EVAS_OBJECT_GRID_OPTION_KEY[] = "|EvGd";
+
+static Eina_Bool
+_evas_object_grid_iterator_next(Evas_Object_Grid_Iterator *it, void **data)
+{
+   Evas_Object_Grid_Option *opt;
+
+   if (!eina_iterator_next(it->real_iterator, (void **)&opt))
+     return EINA_FALSE;
+   if (data) *data = opt->obj;
+   return EINA_TRUE;
+}
+
+static Evas_Object *
+_evas_object_grid_iterator_get_container(Evas_Object_Grid_Iterator *it)
+{
+   return (Evas_Object *)it->grid;
+}
+
+static void
+_evas_object_grid_iterator_free(Evas_Object_Grid_Iterator *it)
+{
+   eina_iterator_free(it->real_iterator);
+   free(it);
+}
+
+static Eina_Bool
+_evas_object_grid_accessor_get_at(Evas_Object_Grid_Accessor *it, unsigned int idx, void **data)
+{
+   Evas_Object_Grid_Option *opt = NULL;
+
+   if (!eina_accessor_data_get(it->real_accessor, idx, (void **)&opt))
+     return EINA_FALSE;
+   if (data) *data = opt->obj;
+   return EINA_TRUE;
+}
+
+static Evas_Object *
+_evas_object_grid_accessor_get_container(Evas_Object_Grid_Accessor *it)
+{
+   return (Evas_Object *)it->grid;
+}
+
+static void
+_evas_object_grid_accessor_free(Evas_Object_Grid_Accessor *it)
+{
+   eina_accessor_free(it->real_accessor);
+   free(it);
+}
+
+static Evas_Object_Grid_Option *
+_evas_object_grid_option_get(Evas_Object *o)
+{
+   return evas_object_data_get(o, EVAS_OBJECT_GRID_OPTION_KEY);
+}
+
+static void
+_evas_object_grid_option_set(Evas_Object *o, const Evas_Object_Grid_Option *opt)
+{
+   evas_object_data_set(o, EVAS_OBJECT_GRID_OPTION_KEY, opt);
+}
+
+static Evas_Object_Grid_Option *
+_evas_object_grid_option_del(Evas_Object *o)
+{
+   return evas_object_data_del(o, EVAS_OBJECT_GRID_OPTION_KEY);
+}
+
+static void
+_on_child_del(void *data, Evas *evas __UNUSED__, Evas_Object *child, void *einfo __UNUSED__)
+{
+   Evas_Object *grid = data;
+   evas_object_grid_unpack(grid, child);
+}
+
+static void
+_evas_object_grid_child_connect(Evas_Object *o, Evas_Object *child)
+{
+   evas_object_event_callback_add
+     (child, EVAS_CALLBACK_DEL, _on_child_del, o);
+}
+
+static void
+_evas_object_grid_child_disconnect(Evas_Object *o, Evas_Object *child)
+{
+   evas_object_event_callback_del_full
+     (child, EVAS_CALLBACK_DEL, _on_child_del, o);
+}
+
+EVAS_SMART_SUBCLASS_NEW("Evas_Object_Grid", _evas_object_grid,
+                        Evas_Smart_Class, Evas_Smart_Class,
+                        evas_object_smart_clipped_class_get, NULL)
+
+static void
+_evas_object_grid_smart_add(Evas_Object *o)
+{
+   EVAS_SMART_DATA_ALLOC(o, Evas_Object_Grid_Data)
+
+   priv->size.w = 100;
+   priv->size.h = 100;
+   
+   _evas_object_grid_parent_sc->add(o);
+}
+
+static void
+_evas_object_grid_smart_del(Evas_Object *o)
+{
+   EVAS_OBJECT_GRID_DATA_GET(o, priv);
+   Eina_List *l;
+
+   l = priv->children;
+   while (l)
+     {
+        Evas_Object_Grid_Option *opt = l->data;
+        _evas_object_grid_child_disconnect(o, opt->obj);
+        _evas_object_grid_option_del(opt->obj);
+        free(opt);
+        l = eina_list_remove_list(l, l);
+     }
+   _evas_object_grid_parent_sc->del(o);
+}
+
+static void
+_evas_object_grid_smart_resize(Evas_Object *o, Evas_Coord w, Evas_Coord h)
+{
+   Evas_Coord ow, oh;
+   evas_object_geometry_get(o, NULL, NULL, &ow, &oh);
+   if ((ow == w) && (oh == h)) return;
+   evas_object_smart_changed(o);
+}
+
+static void
+_evas_object_grid_smart_calculate(Evas_Object *o)
+{
+   Eina_List *l;
+   Evas_Object_Grid_Option *opt;
+   Evas_Coord x, y, w, h, vw, vh, t;
+   Eina_Bool mirror;
+   
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, priv);
+   if (!priv) return;
+   if (!priv->children) return;
+   evas_object_geometry_get(o, &x, &y, &w, &h);
+   mirror = priv->is_mirrored;
+   vw = priv->size.w;
+   vh = priv->size.h;
+   EINA_LIST_FOREACH(priv->children, l, opt)
+     {
+        Evas_Coord x1, y1, x2, y2;
+        
+        x1 = x + ((w * opt->x) / vw);
+        y1 = y + ((h * opt->y) / vh);
+        x2 = x + ((w * (opt->x + opt->w)) / vw);
+        y2 = y + ((h * (opt->y + opt->h)) / vh);
+        if (mirror)
+          {
+             t = x1; x1 = x2; x2 = t;
+             t = y1; y1 = y2; y2 = t;
+          }
+        evas_object_move(opt->obj, x1, y1);
+        evas_object_resize(opt->obj, x2 - x1, y2 - y1);
+     }
+}
+
+static void
+_evas_object_grid_smart_set_user(Evas_Smart_Class *sc)
+{
+   sc->add = _evas_object_grid_smart_add;
+   sc->del = _evas_object_grid_smart_del;
+   sc->resize = _evas_object_grid_smart_resize;
+   sc->calculate = _evas_object_grid_smart_calculate;
+}
+
+EAPI Evas_Object *
+evas_object_grid_add(Evas *evas)
+{
+   return evas_object_smart_add(evas, _evas_object_grid_smart_class_new());
+}
+
+EAPI Evas_Object *
+evas_object_grid_add_to(Evas_Object *parent)
+{
+   Evas *evas;
+   Evas_Object *o;
+
+   evas = evas_object_evas_get(parent);
+   o = evas_object_grid_add(evas);
+   evas_object_smart_member_add(o, parent);
+   return o;
+}
+
+EAPI void
+evas_object_grid_size_set(Evas_Object *o, int w, int h)
+{
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, priv);
+   if ((priv->size.w == w) && (priv->size.h == h)) return;
+   priv->size.w = w;
+   priv->size.h = h;
+   evas_object_smart_changed(o);
+}
+
+EAPI void
+evas_object_grid_size_get(const Evas_Object *o, int *w, int *h)
+{
+   if (w) *w = 0;
+   if (h) *h = 0;
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, priv);
+   if (w) *w = priv->size.w;
+   if (h) *h = priv->size.h;
+}
+
+EAPI Eina_Bool
+evas_object_grid_pack(Evas_Object *o, Evas_Object *child, int x, int y, int w, int h)
+{
+   Evas_Object_Grid_Option *opt;
+   Eina_Bool newobj = EINA_FALSE;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, 0);
+
+   opt = _evas_object_grid_option_get(child);
+   if (!opt)
+     {
+        opt = malloc(sizeof(*opt));
+        if (!opt)
+          {
+             ERR("could not allocate grid option data.");
+             return EINA_FALSE;
+          }
+        newobj = EINA_TRUE;
+     }
+
+   opt->x = x;
+   opt->y = y;
+   opt->w = w;
+   opt->h = h;
+
+   if (newobj)
+     {
+        opt->obj = child;
+        priv->children = eina_list_append(priv->children, opt);
+        opt->l = eina_list_last(priv->children);
+        _evas_object_grid_option_set(child, opt);
+        evas_object_smart_member_add(child, o);
+        _evas_object_grid_child_connect(o, child);
+     }
+   // FIXME: we could keep a changed list
+   evas_object_smart_changed(o);
+   return EINA_TRUE;
+}
+
+static void
+_evas_object_grid_remove_opt(Evas_Object_Grid_Data *priv, Evas_Object_Grid_Option *opt)
+{
+   priv->children = eina_list_remove_list(priv->children, opt->l);
+   opt->l = NULL;
+}
+
+EAPI Eina_Bool
+evas_object_grid_unpack(Evas_Object *o, Evas_Object *child)
+{
+   Evas_Object_Grid_Option *opt;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, 0);
+
+   if (o != evas_object_smart_parent_get(child))
+     {
+        ERR("cannot unpack child from incorrect grid!");
+        return EINA_FALSE;
+     }
+
+   opt = _evas_object_grid_option_del(child);
+   if (!opt)
+     {
+        ERR("cannot unpack child with no packing option!");
+        return EINA_FALSE;
+     }
+
+   _evas_object_grid_child_disconnect(o, child);
+   _evas_object_grid_remove_opt(priv, opt);
+   evas_object_smart_member_del(child);
+   free(opt);
+   return EINA_TRUE;
+}
+
+EAPI void
+evas_object_grid_clear(Evas_Object *o, Eina_Bool clear)
+{
+   Evas_Object_Grid_Option *opt;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(o, priv);
+
+   EINA_LIST_FREE(priv->children, opt)
+     {
+        _evas_object_grid_child_disconnect(o, opt->obj);
+        _evas_object_grid_option_del(opt->obj);
+        evas_object_smart_member_del(opt->obj);
+        if (clear)
+          evas_object_del(opt->obj);
+        free(opt);
+     }
+}
+
+EAPI Eina_Bool
+evas_object_grid_pack_get(Evas_Object *o, Evas_Object *child, int *x, int *y, int *w, int *h)
+{
+   Evas_Object_Grid_Option *opt;
+
+   if (x) *x = 0;
+   if (y) *y = 0;
+   if (w) *w = 0;
+   if (h) *h = 0;
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, 0);
+   opt = _evas_object_grid_option_get(child);
+   if (!opt) return 0;
+   if (x) *x = opt->x;
+   if (y) *y = opt->y;
+   if (w) *w = opt->w;
+   if (h) *h = opt->h;
+   return 1;
+}
+
+EAPI Eina_Iterator *
+evas_object_grid_iterator_new(const Evas_Object *o)
+{
+   Evas_Object_Grid_Iterator *it;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
+
+   if (!priv->children) return NULL;
+
+   it = calloc(1, sizeof(Evas_Object_Grid_Iterator));
+   if (!it) return NULL;
+
+   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
+
+   it->real_iterator = eina_list_iterator_new(priv->children);
+   it->grid = o;
+
+   it->iterator.next = FUNC_ITERATOR_NEXT(_evas_object_grid_iterator_next);
+   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_evas_object_grid_iterator_get_container);
+   it->iterator.free = FUNC_ITERATOR_FREE(_evas_object_grid_iterator_free);
+
+   return &it->iterator;
+}
+
+EAPI Eina_Accessor *
+evas_object_grid_accessor_new(const Evas_Object *o)
+{
+   Evas_Object_Grid_Accessor *it;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
+
+   if (!priv->children) return NULL;
+
+   it = calloc(1, sizeof(Evas_Object_Grid_Accessor));
+   if (!it) return NULL;
+
+   EINA_MAGIC_SET(&it->accessor, EINA_MAGIC_ACCESSOR);
+
+   it->real_accessor = eina_list_accessor_new(priv->children);
+   it->grid = o;
+
+   it->accessor.get_at = FUNC_ACCESSOR_GET_AT(_evas_object_grid_accessor_get_at);
+   it->accessor.get_container = FUNC_ACCESSOR_GET_CONTAINER(_evas_object_grid_accessor_get_container);
+   it->accessor.free = FUNC_ACCESSOR_FREE(_evas_object_grid_accessor_free);
+
+   return &it->accessor;
+}
+
+EAPI Eina_List *
+evas_object_grid_children_get(const Evas_Object *o)
+{
+   Eina_List *new_list = NULL, *l;
+   Evas_Object_Grid_Option *opt;
+
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(o, priv, NULL);
+
+   EINA_LIST_FOREACH(priv->children, l, opt)
+      new_list = eina_list_append(new_list, opt->obj);
+
+   return new_list;
+}
+
+EAPI Eina_Bool
+evas_object_grid_mirrored_get(const Evas_Object *obj)
+{
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN_VAL(obj, priv, EINA_FALSE);
+   return priv->is_mirrored;
+}
+
+EAPI void
+evas_object_grid_mirrored_set(Evas_Object *obj, Eina_Bool mirrored)
+{
+   EVAS_OBJECT_GRID_DATA_GET_OR_RETURN(obj, priv);
+   mirrored = !!mirrored;
+   if (priv->is_mirrored != mirrored)
+     {
+        priv->is_mirrored = mirrored;
+        _evas_object_grid_smart_calculate(obj);
+     }
+}