src/lib/elm_segment_control.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 /**
   5  * @defgroup SegmentControl SegmentControl
   6  * @ingroup Elementary
   7  *
   8  * SegmentControl object is a horizontal control made of multiple segments,
   9  * each segment functioning as a discrete button. A segmented control affords a compact means to group together a number of controls.
  10  * A segmented control can display a title or an image. The UISegmentedControl object automatically resizes segments to fit proportionally
  11  * within their superview unless they have a specific width set. When you add and remove segments,
  12  * you can request that the action be animated with sliding and fading effects.
  13  */
  14 typedef struct _Widget_Data Widget_Data;
  15 struct _Widget_Data
  16 {
  17    Evas_Object *box;
  18    Evas_Object *base;
  19    Eina_List *seg_ctrl;
  20    Eina_List *queue;
  21    int width, height;
  22    int id;
  23    int item_width;
  24
  25    Elm_Segment_Item *ani_it;
  26    Ecore_Animator *ani;
  27    unsigned int count;
  28    unsigned int insert_index;
  29    unsigned int del_index;
  30    unsigned int cur_seg_id;
  31    double scale_factor;
  32    Eina_Bool longpressed : 1;
  33 };
  34
  35 struct _Elm_Segment_Item
  36 {
  37    Evas_Object *obj;
  38    Evas_Object *base;
  39    Evas_Object *icon;
  40    const char *label;
  41    Eina_Bool delete_me : 1;
  42    int segment_id;
  43    Ecore_Timer *long_timer;
  44 };
  45
  46 static void _mouse_down(void *data, Evas_Object *obj, const char *emission, const char *source);
  47 static void _mouse_up(void *data, Evas_Object *obj, const char *emission, const char *source);
  48 static void _signal_segment_on(void *data);
  49 static void _theme_hook(Evas_Object *obj);
  50 static void _item_free(Evas_Object *obj, Elm_Segment_Item *it);
  51 static void _del_hook(Evas_Object *obj);
  52 static void _layout(Evas_Object *o, Evas_Object_Box_Data *priv, void *data);
  53 static void _update_list(Evas_Object *obj);
  54 static void _refresh_segment_ids(Evas_Object *obj);
  55 static void _state_value_set(Evas_Object *obj);
  56
  57 static Elm_Segment_Item* _item_new(Evas_Object *obj, const char *label, Evas_Object *icon);
  58 static Elm_Segment_Item *_item_find(Evas_Object *obj, unsigned int index);
  59
  60 static int * _animator_animate_add_cb(Evas_Object *obj);
  61 static int * _animator_animate_del_cb(Evas_Object *obj);
  62
  63 static void
  64 _on_focus_hook(void *data, Evas_Object *obj)
  65 {
  66    Widget_Data *wd = elm_widget_data_get(obj);
  67    if (!wd) return;
  68         Elm_Segment_Item *it;
  69         Eina_List *l;
  70
  71    if (elm_widget_focus_get(obj))
  72      {
  73         edje_object_signal_emit((Evas_Object *)wd->seg_ctrl, "elm,action,focus", "elm");
  74         evas_object_focus_set((Evas_Object *)wd->seg_ctrl, 1);
  75      }
  76    else
  77      {
  78         edje_object_signal_emit((Evas_Object *)wd->seg_ctrl, "elm,action,unfocus", "elm");
  79         evas_object_focus_set((Evas_Object *)wd->seg_ctrl, 0);
  80         EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
  81           {
  82              if (it->segment_id == wd->cur_seg_id) {
  83                 edje_object_signal_emit(it->base, "elm,action,unfocus", "elm");
  84                 edje_object_signal_emit(it->base, "elm,state,segment,off", "elm");
  85                 edje_object_signal_emit(it->base, "elm,state,text,visible", "elm");
  86                 break;
  87              }
  88           }
  89      }
  90 }
  91
  92 static void
  93 _mouse_up(void *data, Evas_Object *obj, const char *emission, const char *source)
  94 {
  95    Elm_Segment_Item *item = (Elm_Segment_Item *) data;
  96    Widget_Data *wd = elm_widget_data_get(item->obj);
  97
  98    if (!wd) return;
  99
 100    if(wd->longpressed == EINA_FALSE)
 101      {
 102        edje_object_signal_emit(item->base, "elm,action,unfocus", "elm");
 103        edje_object_signal_emit(item->base, "elm,state,text,visible", "elm");
 104      }
 105    if (item->long_timer)
 106      {
 107        ecore_timer_del(item->long_timer);
 108        item->long_timer = NULL;
 109      }
 110
 111 }
 112
 113 static void
 114 _signal_segment_on(void *data)
 115 {
 116    Elm_Segment_Item *item = (Elm_Segment_Item *) data;
 117    Widget_Data *wd = elm_widget_data_get(item->obj);
 118
 119    if (!wd) return;
 120
 121    if (item->long_timer)
 122      {
 123        ecore_timer_del(item->long_timer);
 124        item->long_timer = NULL;
 125      }
 126    wd->longpressed = EINA_TRUE;
 127    edje_object_signal_emit(item->base, "elm,state,segment,on", "elm");
 128    edje_object_signal_emit(item->base, "elm,state,text,change", "elm");
 129
 130    Elm_Segment_Item *it;
 131    Eina_List *l;
 132
 133    if (item->segment_id == wd->cur_seg_id)
 134      {
 135         wd->cur_seg_id = item->segment_id;
 136         evas_object_smart_callback_call(item->obj, "changed", (void*)wd->cur_seg_id);
 137         return;
 138      }
 139    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 140      {
 141         if (it->segment_id == wd->cur_seg_id)
 142           {
 143              edje_object_signal_emit(it->base, "elm,action,unfocus", "elm");
 144              edje_object_signal_emit(it->base, "elm,state,segment,off", "elm");
 145              edje_object_signal_emit(it->base, "elm,state,text,visible", "elm");
 146              break;
 147           }
 148      }
 149    wd->cur_seg_id = item->segment_id;
 150    evas_object_smart_callback_call(item->obj, "changed", (void*)wd->cur_seg_id);
 151    return;
 152 }
 153
 154 static void
 155 _mouse_down(void *data, Evas *evas, Evas_Object *obj, void *event_info)
 156 {
 157    Elm_Segment_Item *item = (Elm_Segment_Item *) data;
 158    Widget_Data *wd = elm_widget_data_get(item->obj);
 159
 160    if (!wd) return;
 161    wd->longpressed = EINA_FALSE;
 162
 163    edje_object_signal_emit(item->base, "elm,action,focus", "elm");
 164    edje_object_signal_emit(item->base, "elm,state,text,visible", "elm");
 165
 166    if (item->long_timer) ecore_timer_del(item->long_timer);
 167    item->long_timer = ecore_timer_add(0.5, _signal_segment_on, item);
 168 }
 169
 170 static void
 171 _theme_hook(Evas_Object *obj)
 172 {
 173    _elm_theme_object_set(obj, obj, "segmented-control", "base", elm_widget_style_get(obj));
 174
 175    return;
 176 }
 177
 178 static void
 179 _item_free(Evas_Object *obj, Elm_Segment_Item *it)
 180 {
 181    Widget_Data *wd = elm_widget_data_get(obj);
 182    if (!wd) return;
 183
 184    if(wd->seg_ctrl)
 185         wd->seg_ctrl = eina_list_remove(wd->seg_ctrl, it);
 186
 187    if(it->icon) evas_object_del(it->icon);
 188    if(it->base) evas_object_del(it->base);
 189    if(it->label) eina_stringshare_del(it->label);
 190    if (it->long_timer) ecore_timer_del(it->long_timer);
 191
 192    if(it)
 193       free(it);
 194    it = NULL;
 195    return;
 196 }
 197
 198 static void
 199 _del_hook(Evas_Object *obj)
 200 {
 201    Widget_Data *wd = elm_widget_data_get(obj);
 202    Elm_Segment_Item *it;
 203    Eina_List *l, *clear = NULL;
 204
 205    EINA_LIST_FOREACH(wd->seg_ctrl, l, it) clear = eina_list_append(clear, it);
 206    EINA_LIST_FREE(clear, it) _item_free(obj, it);
 207
 208    if(wd) free(wd);
 209    wd = NULL;
 210
 211    return;
 212 }
 213
 214
 215 static void
 216 _layout(Evas_Object *o, Evas_Object_Box_Data *priv, void *data)
 217 {
 218    Widget_Data *wd = data;
 219    if (!wd) return;
 220    _els_box_layout(o, priv, 1, 0); /* making box layout non homogenous */
 221
 222    return;
 223 }
 224
 225 static void
 226 _segment_resizing(void *data)
 227 {
 228    Widget_Data *wd = elm_widget_data_get((Evas_Object *)data);
 229    if (!wd) return;
 230    Evas_Coord w = 0, h = 0;
 231
 232    evas_object_geometry_get(wd->base, NULL, NULL, &w, &h);
 233    wd->item_width = wd->width = w;
 234    wd->height = h;
 235    _state_value_set((Evas_Object *)data);
 236 }
 237
 238 static void _object_resize(void *data, Evas *e, Evas_Object *obj, void *event_info)
 239 {
 240    Widget_Data *wd;
 241    if(!data) return;
 242    wd = elm_widget_data_get((Evas_Object *)data);
 243    if(!wd) return;
 244
 245    ecore_job_add(_segment_resizing, (Evas_Object *)data);
 246 }
 247
 248 /**
 249  * Add a new segmentcontrol to the parent
 250  * @param parent The parent object
 251  * @return The new object or NULL if it cannot be created
 252  *
 253  * @ingroup SegmentControl SegmentControl
 254  */
 255 EAPI Evas_Object *
 256 elm_segment_control_add(Evas_Object *parent)
 257 {
 258    Evas_Object *obj;
 259    Evas *e;
 260    Widget_Data *wd;
 261
 262    wd = ELM_NEW(Widget_Data);
 263    e = evas_object_evas_get(parent);
 264    obj = elm_widget_add(e);
 265    elm_widget_type_set(obj, "segmented-control");
 266    elm_widget_sub_object_add(parent, obj);
 267    elm_widget_on_focus_hook_set( obj, _on_focus_hook, NULL );
 268    elm_widget_data_set(obj, wd);
 269    elm_widget_del_hook_set(obj, _del_hook);
 270    elm_widget_theme_hook_set(obj, _theme_hook);
 271
 272    wd->base = edje_object_add(e);
 273    _elm_theme_object_set(obj, wd->base, "segmented-control", "base", "default");
 274    elm_widget_resize_object_set(obj, wd->base);
 275    wd->box = evas_object_box_add(e);
 276    evas_object_box_layout_set(wd->box, _layout, wd, NULL);
 277    elm_widget_sub_object_add(obj, wd->box);
 278    edje_object_part_swallow(wd->base, "elm.swallow.content", wd->box);
 279    evas_object_show(wd->box);
 280
 281    evas_object_event_callback_add(obj, EVAS_CALLBACK_RESIZE, _object_resize, obj);
 282    wd->id = 0;
 283    wd->del_index = 0;
 284    wd->insert_index = 0;
 285    wd->cur_seg_id = 0;
 286
 287    return obj;
 288 }
 289
 290 static Elm_Segment_Item*
 291 _item_new(Evas_Object *obj, const char *label, Evas_Object *icon)
 292 {
 293    Widget_Data *wd = elm_widget_data_get(obj);
 294    if (!wd) return NULL;
 295
 296    Elm_Segment_Item *it;
 297    it = calloc(1, sizeof(   Elm_Segment_Item));
 298    if (!it) return NULL;
 299
 300    Evas_Coord mw, mh;
 301
 302    if(obj) it->obj = obj;
 303    it->delete_me = EINA_FALSE;
 304    it->segment_id = wd->id;
 305
 306    it->base = edje_object_add(evas_object_evas_get(obj));
 307    _elm_theme_object_set(obj, it->base, "segment", "base", elm_object_style_get(it->base));
 308
 309    if (it->label) eina_stringshare_del(it->label);
 310    if (label)
 311      {
 312         it->label = eina_stringshare_add(label);
 313      }
 314    else
 315      {
 316         it->label = NULL;
 317      }
 318
 319    if ((it->icon != icon) && (it->icon))
 320       elm_widget_sub_object_del(obj, it->icon);
 321    it->icon = icon;
 322    if (icon)
 323      {
 324         elm_widget_sub_object_add(obj, icon);
 325         Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 326         elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 327         elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 328
 329         evas_object_size_hint_weight_set(it->base, 1.0, -1.0);
 330         evas_object_size_hint_align_set(it->base, 1.0, -1.0);
 331         evas_object_size_hint_min_set(it->base, -1, -1);
 332         evas_object_size_hint_max_set(it->base, maxw, maxh);
 333      }
 334
 335    edje_object_size_min_restricted_calc(obj, &mw, &mh, 0, 0);
 336    evas_object_size_hint_weight_set(obj, 1.0, 1.0);
 337    evas_object_size_hint_align_set(obj, -1.0, -1.0);
 338
 339    return it;
 340 }
 341
 342
 343 static void _update_list(Evas_Object *obj)
 344 {
 345    Widget_Data *wd = elm_widget_data_get(obj);
 346    if (!wd) return;
 347
 348    Elm_Segment_Item *it;
 349    Eina_List *l;
 350    int i = 0;
 351    wd->count = eina_list_count(wd->seg_ctrl);
 352
 353    if(wd->count == 1)
 354      {
 355         it = _item_find(obj, 0);
 356         _elm_theme_object_set(obj, it->base, "segment", "base", "single");              edje_object_signal_emit(it->base, "elm,state,segment,on", "elm");
 357         edje_object_signal_emit(it->base, "elm,state,text,visible", "elm");
 358         edje_object_signal_emit(it->base, "elm,state,text,change", "elm");
 359         edje_object_message_signal_process(it->base);
 360
 361         edje_object_part_text_set(it->base, "elm.text", it->label);
 362
 363         edje_object_part_swallow(it->base, "elm.swallow.content", it->icon);
 364         edje_object_signal_emit(it->base, "elm,state,icon,visible", "elm");
 365         return;
 366      }
 367
 368    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 369      {
 370         if(i==0)
 371           {
 372              _elm_theme_object_set(obj, it->base, "segment", "base", "first");
 373           }
 374         else if(i==wd->count-1)
 375           {
 376              _elm_theme_object_set(obj, it->base, "segment", "base", "last");
 377           }
 378         else
 379           {
 380              _elm_theme_object_set(obj, it->base, "segment", "base", "default");
 381           }
 382
 383         edje_object_signal_emit(it->base, "elm,state,text,visible", "elm");
 384         edje_object_message_signal_process(it->base);
 385
 386         edje_object_part_text_set(it->base, "elm.text", it->label);
 387
 388         edje_object_part_swallow(it->base, "elm.swallow.content", it->icon);
 389         edje_object_signal_emit(it->base, "elm,state,icon,visible", "elm");
 390
 391         i++;
 392      }
 393 }
 394
 395
 396 static void _refresh_segment_ids(Evas_Object *obj)
 397 {
 398    Widget_Data *wd = elm_widget_data_get(obj);
 399    if (!wd) return;
 400    Elm_Segment_Item *it;
 401    Eina_List *l;
 402    if (wd->insert_index && wd->cur_seg_id >= wd->insert_index)
 403      {
 404         ++wd->cur_seg_id;
 405         wd->insert_index = 0;
 406      }
 407    if (wd->del_index)
 408      {
 409         if (wd->cur_seg_id >= wd->del_index)
 410            --wd->cur_seg_id;
 411            wd->del_index =0;
 412      }
 413    int i = 0;
 414    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 415      {
 416         it->segment_id = i;
 417         i++;
 418      }
 419 }
 420
 421 static void _state_value_set(Evas_Object *obj)
 422 {
 423    Widget_Data *wd = elm_widget_data_get(obj);
 424    if (!wd) return;
 425    Elm_Segment_Item *it;
 426    Eina_List *l;
 427    Evas_Coord mw, mh, x, y;
 428    int w1=0, w2;
 429    unsigned int count = eina_list_count(wd->seg_ctrl);
 430    if (count > 0)
 431      wd->item_width = wd->width/count;
 432    if (wd->ani_it)
 433      {
 434         evas_object_geometry_get(wd->ani_it->base, &x, &y, &w1, NULL);
 435         if (wd->ani_it->delete_me)
 436           {
 437              w1-=(wd->item_width/15);
 438              if( w1< 0) w1 = 0;
 439           }
 440         else
 441         {
 442            w1+=(wd->item_width/15);
 443            if( w1 > wd->item_width )
 444               w1 = wd->item_width;
 445         }
 446         w2 = (wd->width-w1)/(count -1);
 447      }
 448    else
 449       w2 = wd->item_width;
 450
 451    int i=0;
 452
 453    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 454     {
 455        edje_object_size_min_restricted_calc(it->base, &mw, &mh, 0, 0);
 456        evas_object_size_hint_weight_set(it->base, 1.0, 1.0);
 457        evas_object_size_hint_align_set(it->base, -1.0, -1.0);
 458
 459        if(wd->ani_it  && it == wd->ani_it)
 460          {
 461             evas_object_resize(it->base, w1, wd->height);
 462             evas_object_size_hint_min_set(it->base, w1, wd->height);
 463             evas_object_size_hint_max_set(it->base, w1, wd->height);
 464          }
 465        else
 466          {
 467             evas_object_resize(it->base, w2, wd->height);
 468             evas_object_size_hint_min_set(it->base, w2, wd->height);
 469             evas_object_size_hint_max_set(it->base, w2, wd->height);
 470          }
 471        ++i;
 472     }
 473
 474     return;
 475 }
 476
 477
 478 static int *
 479 _animator_animate_add_cb(Evas_Object *obj)
 480 {
 481    Widget_Data *wd = elm_widget_data_get(obj);
 482    if (!wd) return;
 483
 484    int w;
 485    evas_object_geometry_get(wd->ani_it->base, NULL, NULL, &w, NULL);
 486    if( w <  wd->item_width )
 487      {
 488          _state_value_set(obj);
 489          evas_object_geometry_get(wd->ani_it->base, NULL, NULL, &w, NULL);
 490          return ECORE_CALLBACK_RENEW;
 491      }
 492    else
 493      {
 494         ecore_animator_del(wd->ani);
 495         wd->ani = NULL;
 496         wd->ani_it = NULL;
 497         return ECORE_CALLBACK_CANCEL;
 498      }
 499 }
 500
 501
 502 static int *
 503 _animator_animate_del_cb(Evas_Object *obj)
 504 {
 505    Widget_Data *wd = elm_widget_data_get(obj);
 506    if (!wd) return;
 507    int w;
 508    evas_object_geometry_get(wd->ani_it->base, NULL, NULL, &w, NULL);
 509    if( w >  0 )
 510      {
 511         _state_value_set(obj);
 512         evas_object_geometry_get(wd->ani_it->base, NULL, NULL, &w, NULL);
 513         return ECORE_CALLBACK_RENEW;
 514      }
 515    else
 516      {
 517         _item_free(obj, wd->ani_it );
 518         _refresh_segment_ids(obj);
 519         ecore_animator_del(wd->ani);
 520         wd->ani = NULL;
 521         wd->ani_it = NULL;
 522         _update_list(obj);
 523         wd->id = eina_list_count(wd->seg_ctrl);
 524         return ECORE_CALLBACK_CANCEL;
 525      }
 526 }
 527
 528 /**
 529  * Add a new segment to segmentcontrol
 530  * @param obj The SegmentControl object
 531  * @param icon The icon object for added segment
 532  * @param label The label for added segment
 533  * @param animate If 1 the action be animated with sliding effects default 0.
 534  * @return The new segment or NULL if it cannot be created
 535  *
 536  * @ingroup SegmentControl SegmentControl
 537  */
 538
 539 EAPI Elm_Segment_Item *
 540 elm_segment_control_add_segment(Evas_Object *obj, Evas_Object *icon, const char *label, Eina_Bool animate)
 541 {
 542    Widget_Data *wd = elm_widget_data_get(obj);
 543    if(!wd) return NULL;
 544
 545    Evas_Object *seg;
 546    Elm_Segment_Item *it;
 547
 548    it = _item_new(obj, label, icon);
 549    if(!it) return NULL;
 550
 551    wd->seg_ctrl = eina_list_append(wd->seg_ctrl, it);
 552    wd->id = eina_list_count(wd->seg_ctrl);
 553    _update_list(obj);
 554    evas_object_event_callback_add(it->base, EVAS_CALLBACK_MOUSE_DOWN,   _mouse_down, it);
 555    evas_object_event_callback_add(it->base, EVAS_CALLBACK_MOUSE_UP,_mouse_up, it);
 556    wd->insert_index = 0;
 557    wd->del_index = 0;
 558    _refresh_segment_ids(obj);
 559
 560    if(animate && it->segment_id && wd->ani_it == NULL)
 561      {
 562         evas_object_resize(it->base, 1, wd->height);
 563         wd->ani_it = it;
 564         wd->ani = ecore_animator_add( _animator_animate_add_cb, obj );
 565      }
 566    else
 567       _state_value_set(obj);
 568    evas_object_show( it->base);
 569
 570    evas_object_box_append(wd->box, it->base);
 571    evas_object_smart_calculate(wd->box);
 572
 573    return it;
 574 }
 575
 576
 577 static Elm_Segment_Item *
 578 _item_find(Evas_Object *obj, unsigned int index)
 579 {
 580    Widget_Data *wd = elm_widget_data_get(obj);
 581    if (!wd) return NULL;
 582
 583    Elm_Segment_Item *it;
 584    Eina_List *l;
 585    int i = 0;
 586    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 587      {
 588         if (i == index) {
 589            return it;
 590         }
 591         i++;
 592      }
 593      return NULL;
 594 }
 595
 596
 597 static Elm_Segment_Item *
 598 _item_search(Evas_Object *obj, Elm_Segment_Item *item)
 599 {
 600    Widget_Data *wd = elm_widget_data_get(obj);
 601    if (!wd)
 602    return NULL;
 603
 604    Elm_Segment_Item *it;
 605    Eina_List *l;
 606    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 607      {
 608         if (it == item) {
 609            return it;
 610         }
 611      }
 612    return NULL;
 613 }
 614
 615 /**
 616  * Insert a new segment to segmentcontrol
 617  * @param obj The SegmentControl object
 618  * @param icon The icon object for added segment
 619  * @param label The label for added segment
 620  * @param index The position at which segment to be inserted
 621  * @param animate If 1 the action be animated with sliding effects default 0.
 622  * @return The new segment or NULL if it cannot be created
 623  *
 624  * @ingroup SegmentControl SegmentControl
 625  */
 626 EAPI void
 627 elm_segment_control_insert_segment_at(Evas_Object *obj, Evas_Object *icon, const char *label, unsigned int index, Eina_Bool animate)
 628 {
 629    Widget_Data *wd = elm_widget_data_get(obj);
 630    if(!wd) return;
 631
 632    Elm_Segment_Item *it, *it_rel;
 633
 634    it = _item_new(obj, label, icon);
 635    it_rel = _item_find(obj, index);
 636    if (!it_rel)
 637      {
 638       wd->seg_ctrl = eina_list_append(wd->seg_ctrl, it);
 639      }
 640    else
 641      {
 642         if (!it) return;
 643         wd->seg_ctrl = eina_list_prepend_relative(wd->seg_ctrl, it, it_rel);
 644      }
 645    evas_object_event_callback_add(it->base, EVAS_CALLBACK_MOUSE_DOWN,   _mouse_down, it);
 646    evas_object_event_callback_add(it->base, EVAS_CALLBACK_MOUSE_UP,_mouse_up, it);
 647    wd->insert_index = index;
 648    wd->id = eina_list_count(wd->seg_ctrl);
 649    _refresh_segment_ids(obj);
 650
 651    _update_list(obj);
 652    if(animate && it->segment_id && wd->ani_it == NULL)
 653      {
 654         wd->ani_it = it;
 655         evas_object_resize(it->base, 1, wd->height);
 656         wd->ani = ecore_animator_add( _animator_animate_add_cb, obj );
 657      }
 658    else
 659       _state_value_set(obj);
 660
 661    evas_object_show( it->base);
 662
 663    if(index >= wd->id-1)
 664      {
 665         evas_object_box_append(wd->box,  it->base);
 666      }
 667    else
 668      {
 669         evas_object_box_insert_at(wd->box,  it->base, index);
 670      }
 671
 672    evas_object_smart_calculate(wd->box);
 673    return;
 674 }
 675
 676 /**
 677  * Delete a segment to segmentcontrol
 678  * @param obj The SegmentControl object
 679  * @param item The Segment to be deleted
 680  * @param animate If 1 the action be animated with sliding effects default 0.
 681  *
 682  * @ingroup SegmentControl SegmentControl
 683  */
 684 EAPI void
 685 elm_segment_control_delete_segment(Evas_Object *obj, Elm_Segment_Item *item, Eina_Bool animate)
 686 {
 687    Widget_Data *wd = elm_widget_data_get(obj);
 688    if(!wd) return;
 689
 690    if(!item) return;
 691
 692    Elm_Segment_Item *it;
 693    it = _item_search(obj, item);
 694
 695    if(!it) return;
 696    wd->del_index = it->segment_id;
 697    if(animate && it->segment_id && wd->ani_it == NULL)
 698      {
 699         it->delete_me = EINA_TRUE;
 700         wd->ani_it = it;
 701         wd->ani = ecore_animator_add( _animator_animate_del_cb, obj );
 702      }
 703    else
 704      {
 705         evas_object_box_remove(wd->box, it->base);
 706         evas_object_smart_calculate(wd->box);
 707         _item_free(obj, it);
 708         _refresh_segment_ids(obj);
 709         _state_value_set(obj);
 710         _update_list(obj);
 711      }
 712    wd->id = eina_list_count(wd->seg_ctrl);
 713    return;
 714 }
 715
 716 /**
 717  * Delete a segment to segmentcontrol
 718  * @param obj The SegmentControl object
 719  * @param index The position at which segment to be deleted
 720  * @param animate If 1 the action be animated with sliding effects default 0.
 721  *
 722  * @ingroup SegmentControl SegmentControl
 723  */
 724
 725 EAPI void
 726 elm_segment_control_delete_segment_at(Evas_Object *obj,  unsigned int index, Eina_Bool animate)
 727 {
 728    Widget_Data *wd = elm_widget_data_get(obj);
 729    if(!wd) return;
 730    Elm_Segment_Item *it, *it_rel;
 731
 732    it = _item_find(obj, index);
 733
 734    if(!it) return;
 735
 736    wd->del_index = index;
 737    if(animate && it->segment_id)
 738      {
 739         if(wd->ani_it == NULL)
 740         {
 741            wd->ani_it = it;
 742            it->delete_me = EINA_TRUE;
 743            wd->ani = ecore_animator_add( _animator_animate_del_cb, obj );
 744         }
 745         else
 746           {
 747              wd->queue = eina_list_append(wd->queue, it);
 748           }
 749      }
 750    else
 751      {
 752         evas_object_box_remove(wd->box, it->base);
 753         evas_object_smart_calculate(wd->box);
 754         _item_free(obj, it);
 755         _refresh_segment_ids(obj);
 756         _state_value_set(obj);
 757         _update_list(obj);
 758      }
 759    wd->id = eina_list_count(wd->seg_ctrl);
 760    return;
 761 }
 762
 763 /**
 764  * Get the label of a segment of segmentcontrol
 765  * @param obj The SegmentControl object
 766  * @param index The index of the segment
 767  * @return The label
 768  *
 769  * @ingroup SegmentControl SegmentControl
 770  */
 771
 772 EAPI const char *
 773 elm_segment_control_get_segment_label_at(Evas_Object *obj, unsigned int index)
 774 {
 775    Elm_Segment_Item *it_rel;
 776    Widget_Data *wd = elm_widget_data_get(obj);
 777    if(!wd) return NULL;
 778
 779    it_rel = _item_find(obj, index);
 780
 781    if(it_rel) return it_rel->label;
 782
 783    return NULL;
 784 }
 785
 786 /**
 787  * Get the icon of a segment of segmentcontrol
 788  * @param obj The SegmentControl object
 789  * @param index The index of the segment
 790  * @return The icon object
 791  *
 792  * @ingroup SegmentControl SegmentControl
 793  */
 794
 795 EAPI Evas_Object *
 796 elm_segment_control_get_segment_icon_at(Evas_Object *obj, unsigned int index)
 797 {
 798    Elm_Segment_Item *seg_rel;
 799    Widget_Data *wd = elm_widget_data_get(obj);
 800    if(!wd) return NULL;
 801
 802    seg_rel = _item_find(obj, index);
 803
 804    if(seg_rel) return seg_rel->icon;
 805
 806    return NULL;
 807 }
 808
 809 /**
 810  * Get the currently selected segment of segmentcontrol
 811  * @param obj The SegmentControl object
 812  * @param value The current segment id
 813  * @return The selected Segment
 814  *
 815  * @ingroup SegmentControl SegmentControl
 816  */
 817
 818 EAPI Elm_Segment_Item *
 819 elm_segment_control_selected_segment_get(const Evas_Object *obj, int *value)
 820 {
 821    Widget_Data *wd = elm_widget_data_get(obj);
 822    if(!wd || !wd->seg_ctrl) return NULL;
 823
 824    Elm_Segment_Item *it;
 825    Eina_List *l;
 826
 827    EINA_LIST_FOREACH(wd->seg_ctrl, l, it)
 828      {
 829         if(it->segment_id == wd->cur_seg_id)
 830           {
 831              *value = wd->cur_seg_id;
 832              return it;
 833           }
 834      }
 835    return NULL;
 836 }
 837
 838 /**
 839  * Get the count of segments of segmentcontrol
 840  * @param obj The SegmentControl object
 841  * @return The count of Segments
 842  *
 843  * @ingroup SegmentControl SegmentControl
 844  */
 845
 846 EAPI int
 847 elm_segment_control_get_segment_count(Evas_Object *obj)
 848 {
 849    Widget_Data *wd = elm_widget_data_get(obj);
 850    if(!wd) return 0;
 851
 852    return wd->id;
 853 }
 854
 855 /**
 856  * set the size of segmentcontrol
 857  * @param obj The SegmentControl object
 858  * @param width width of segment control
 859  * @param height height of segment control
 860  *
 861  * @ingroup SegmentControl SegmentControl
 862  */
 863
 864 EAPI void
 865 elm_segment_control_set_size(Evas_Object *obj, int width, int height)
 866 {
 867    Widget_Data *wd = elm_widget_data_get(obj);
 868    if(!wd) return 0;
 869
 870    wd->scale_factor = elm_scale_get();
 871    if ( wd->scale_factor == 0.0 ) {
 872       wd->scale_factor = 1.0;
 873    }
 874
 875    wd->item_width = wd->width = width*wd->scale_factor;
 876    wd->height = height*wd->scale_factor;
 877
 878    return 0;
 879 }