mobile/src/lib/elm_grid.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3 #include "elm_widget_grid.h"
   4
   5 EAPI const char ELM_GRID_SMART_NAME[] = "elm_grid";
   6
   7 EVAS_SMART_SUBCLASS_NEW
   8   (ELM_GRID_SMART_NAME, _elm_grid, Elm_Grid_Smart_Class,
   9   Elm_Widget_Smart_Class, elm_widget_smart_class_get, NULL);
  10
  11 static Eina_Bool
  12 _elm_grid_smart_focus_next(const Evas_Object *obj,
  13                            Elm_Focus_Direction dir,
  14                            Evas_Object **next)
  15 {
  16    Eina_Bool ret;
  17    const Eina_List *items;
  18    Eina_List *(*list_free)(Eina_List *list);
  19    void *(*list_data_get)(const Eina_List *list);
  20
  21    ELM_GRID_DATA_GET(obj, sd);
  22
  23    /* Focus chain */
  24    /* TODO: Change this to use other chain */
  25    if ((items = elm_widget_focus_custom_chain_get(obj)))
  26      {
  27         list_data_get = eina_list_data_get;
  28         list_free = NULL;
  29      }
  30    else
  31      {
  32         items = evas_object_grid_children_get(ELM_WIDGET_DATA(sd)->resize_obj);
  33         list_data_get = eina_list_data_get;
  34         list_free = eina_list_free;
  35
  36         if (!items) return EINA_FALSE;
  37      }
  38
  39    ret = elm_widget_focus_list_next_get(obj, items, list_data_get, dir, next);
  40
  41    if (list_free) list_free((Eina_List *)items);
  42
  43    return ret;
  44 }
  45
  46 static Eina_Bool
  47 _elm_grid_smart_focus_direction(const Evas_Object *obj,
  48                                 const Evas_Object *base,
  49                                 double degree,
  50                                 Evas_Object **direction,
  51                                 double *weight)
  52 {
  53    Eina_Bool ret;
  54    const Eina_List *items;
  55    Eina_List *(*list_free)(Eina_List *list);
  56    void *(*list_data_get)(const Eina_List *list);
  57
  58    ELM_GRID_DATA_GET(obj, sd);
  59
  60    /* Focus chain */
  61    /* TODO: Change this to use other chain */
  62    if ((items = elm_widget_focus_custom_chain_get(obj)))
  63      {
  64         list_data_get = eina_list_data_get;
  65         list_free = NULL;
  66      }
  67    else
  68      {
  69         items = evas_object_grid_children_get(ELM_WIDGET_DATA(sd)->resize_obj);
  70         list_data_get = eina_list_data_get;
  71         list_free = eina_list_free;
  72
  73         if (!items) return EINA_FALSE;
  74      }
  75
  76    ret = elm_widget_focus_list_direction_get(obj, base, items, list_data_get,
  77                                              degree, direction, weight);
  78
  79    if (list_free) list_free((Eina_List *)items);
  80
  81    return ret;
  82 }
  83
  84 static void
  85 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
  86 {
  87    ELM_GRID_DATA_GET(obj, sd);
  88
  89    evas_object_grid_mirrored_set(ELM_WIDGET_DATA(sd)->resize_obj, rtl);
  90 }
  91
  92 static Eina_Bool
  93 _elm_grid_smart_theme(Evas_Object *obj)
  94 {
  95    if (!_elm_grid_parent_sc->theme(obj)) return EINA_FALSE;
  96
  97    _mirrored_set(obj, elm_widget_mirrored_get(obj));
  98
  99    return EINA_TRUE;
 100 }
 101
 102 static void
 103 _elm_grid_smart_add(Evas_Object *obj)
 104 {
 105    EVAS_SMART_DATA_ALLOC(obj, Elm_Grid_Smart_Data);
 106
 107    ELM_WIDGET_DATA(priv)->resize_obj =
 108      evas_object_grid_add(evas_object_evas_get(obj));
 109    evas_object_grid_size_set(ELM_WIDGET_DATA(priv)->resize_obj, 100, 100);
 110
 111    _elm_grid_parent_sc->base.add(obj);
 112
 113    elm_widget_can_focus_set(obj, EINA_FALSE);
 114
 115    _elm_grid_smart_theme(obj);
 116 }
 117
 118 static void
 119 _elm_grid_smart_del(Evas_Object *obj)
 120 {
 121    Eina_List *l;
 122    Evas_Object *child;
 123
 124    ELM_GRID_DATA_GET(obj, sd);
 125
 126    /* let's make our grid object the *last* to be processed, since it
 127     * may (smart) parent other sub objects here */
 128    EINA_LIST_FOREACH(ELM_WIDGET_DATA(sd)->subobjs, l, child)
 129      {
 130         if (child == ELM_WIDGET_DATA(sd)->resize_obj)
 131           {
 132              ELM_WIDGET_DATA(sd)->subobjs =
 133                eina_list_demote_list(ELM_WIDGET_DATA(sd)->subobjs, l);
 134              break;
 135           }
 136      }
 137
 138    _elm_grid_parent_sc->base.del(obj);
 139 }
 140
 141 static void
 142 _elm_grid_smart_set_user(Elm_Grid_Smart_Class *sc)
 143 {
 144    ELM_WIDGET_CLASS(sc)->base.add = _elm_grid_smart_add;
 145    ELM_WIDGET_CLASS(sc)->base.del = _elm_grid_smart_del;
 146
 147    ELM_WIDGET_CLASS(sc)->theme = _elm_grid_smart_theme;
 148    ELM_WIDGET_CLASS(sc)->focus_next = _elm_grid_smart_focus_next;
 149    ELM_WIDGET_CLASS(sc)->focus_direction = _elm_grid_smart_focus_direction;
 150 }
 151
 152 EAPI const Elm_Grid_Smart_Class *
 153 elm_grid_smart_class_get(void)
 154 {
 155    static Elm_Grid_Smart_Class _sc =
 156      ELM_GRID_SMART_CLASS_INIT_NAME_VERSION(ELM_GRID_SMART_NAME);
 157    static const Elm_Grid_Smart_Class *class = NULL;
 158
 159    if (class) return class;
 160
 161    _elm_grid_smart_set(&_sc);
 162    class = &_sc;
 163
 164    return class;
 165 }
 166
 167 EAPI Evas_Object *
 168 elm_grid_add(Evas_Object *parent)
 169 {
 170    Evas_Object *obj;
 171
 172    EINA_SAFETY_ON_NULL_RETURN_VAL(parent, NULL);
 173
 174    obj = elm_widget_add(_elm_grid_smart_class_new(), parent);
 175    if (!obj) return NULL;
 176
 177    if (!elm_widget_sub_object_add(parent, obj))
 178      ERR("could not add %p as sub object of %p", obj, parent);
 179
 180    return obj;
 181 }
 182
 183 EAPI void
 184 elm_grid_size_set(Evas_Object *obj,
 185                   Evas_Coord w,
 186                   Evas_Coord h)
 187 {
 188    ELM_GRID_CHECK(obj);
 189    ELM_GRID_DATA_GET(obj, sd);
 190
 191    evas_object_grid_size_set(ELM_WIDGET_DATA(sd)->resize_obj, w, h);
 192 }
 193
 194 EAPI void
 195 elm_grid_size_get(const Evas_Object *obj,
 196                   Evas_Coord *w,
 197                   Evas_Coord *h)
 198 {
 199    ELM_GRID_CHECK(obj);
 200    ELM_GRID_DATA_GET(obj, sd);
 201
 202    evas_object_grid_size_get(ELM_WIDGET_DATA(sd)->resize_obj, w, h);
 203 }
 204
 205 EAPI void
 206 elm_grid_pack(Evas_Object *obj,
 207               Evas_Object *subobj,
 208               Evas_Coord x,
 209               Evas_Coord y,
 210               Evas_Coord w,
 211               Evas_Coord h)
 212 {
 213    ELM_GRID_CHECK(obj);
 214    ELM_GRID_DATA_GET(obj, sd);
 215
 216    elm_widget_sub_object_add(obj, subobj);
 217    evas_object_grid_pack(ELM_WIDGET_DATA(sd)->resize_obj, subobj, x, y, w, h);
 218 }
 219
 220 EAPI void
 221 elm_grid_unpack(Evas_Object *obj,
 222                 Evas_Object *subobj)
 223 {
 224    ELM_GRID_CHECK(obj);
 225    ELM_GRID_DATA_GET(obj, sd);
 226
 227    elm_widget_sub_object_del(obj, subobj);
 228    evas_object_grid_unpack(ELM_WIDGET_DATA(sd)->resize_obj, subobj);
 229 }
 230
 231 EAPI void
 232 elm_grid_clear(Evas_Object *obj,
 233                Eina_Bool clear)
 234 {
 235    Eina_List *chld;
 236    Evas_Object *o;
 237
 238    ELM_GRID_CHECK(obj);
 239    ELM_GRID_DATA_GET(obj, sd);
 240
 241    if (!clear)
 242      {
 243         chld = evas_object_grid_children_get(ELM_WIDGET_DATA(sd)->resize_obj);
 244         EINA_LIST_FREE (chld, o)
 245           elm_widget_sub_object_del(obj, o);
 246      }
 247
 248    evas_object_grid_clear(ELM_WIDGET_DATA(sd)->resize_obj, clear);
 249 }
 250
 251 EAPI void
 252 elm_grid_pack_set(Evas_Object *subobj,
 253                   Evas_Coord x,
 254                   Evas_Coord y,
 255                   Evas_Coord w,
 256                   Evas_Coord h)
 257 {
 258    Evas_Object *obj = elm_widget_parent_widget_get(subobj);
 259
 260    ELM_GRID_CHECK(obj);
 261    ELM_GRID_DATA_GET(obj, sd);
 262
 263    evas_object_grid_pack(ELM_WIDGET_DATA(sd)->resize_obj, subobj, x, y, w, h);
 264 }
 265
 266 EAPI void
 267 elm_grid_pack_get(Evas_Object *subobj,
 268                   int *x,
 269                   int *y,
 270                   int *w,
 271                   int *h)
 272 {
 273    Evas_Object *obj = elm_widget_parent_widget_get(subobj);
 274
 275    ELM_GRID_CHECK(obj);
 276    ELM_GRID_DATA_GET(obj, sd);
 277
 278    evas_object_grid_pack_get
 279      (ELM_WIDGET_DATA(sd)->resize_obj, subobj, x, y, w, h);
 280 }
 281
 282 EAPI Eina_List *
 283 elm_grid_children_get(const Evas_Object *obj)
 284 {
 285    ELM_GRID_CHECK(obj) NULL;
 286    ELM_GRID_DATA_GET(obj, sd);
 287
 288    return evas_object_grid_children_get(ELM_WIDGET_DATA(sd)->resize_obj);
 289 }