tests/src/lib/elm_slider.c

   1 #include <Elementary.h>
   2 #include "elm_priv.h"
   3
   4 typedef struct _Widget_Data Widget_Data;
   5
   6 struct _Widget_Data
   7 {
   8    Evas_Object *slider;
   9    Evas_Object *icon;
  10    Evas_Object *end;
  11    Evas_Object *spacer;
  12
  13    Ecore_Timer *delay;
  14
  15    Eina_Hash  *labels;
  16    const char *units;
  17    const char *indicator;
  18
  19    const char *(*indicator_format_func)(double val);
  20    void (*indicator_format_free)(const char *str);
  21
  22    const char *(*units_format_func)(double val);
  23    void (*units_format_free)(const char *str);
  24
  25    double val, val_min, val_max;
  26    Evas_Coord size;
  27
  28    Eina_Bool horizontal : 1;
  29    Eina_Bool inverted : 1;
  30    Eina_Bool indicator_show : 1;
  31    Eina_Bool spacer_down : 1;
  32 };
  33
  34 #define ELM_SLIDER_INVERTED_FACTOR (-1.0)
  35
  36 static const char *widtype = NULL;
  37 static void _del_hook(Evas_Object *obj);
  38 static void _mirrored_set(Evas_Object *obj, Eina_Bool rtl);
  39 static void _theme_hook(Evas_Object *obj);
  40 static void _disable_hook(Evas_Object *obj);
  41 static void _sizing_eval(Evas_Object *obj);
  42 static void _changed_size_hints(void *data, Evas *e, Evas_Object *obj, void *event_info);
  43 static void _sub_del(void *data, Evas_Object *obj, void *event_info);
  44 static void _units_set(Evas_Object *obj);
  45 static void _val_set(Evas_Object *obj);
  46 static void _indicator_set(Evas_Object *obj);
  47 static void _on_focus_hook(void *data, Evas_Object *obj);
  48 static void _drag_up(void *data, Evas_Object *obj,
  49                     const char *emission, const char *source);
  50 static void _drag_down(void *data, Evas_Object *obj,
  51                     const char *emission, const char *source);
  52 static Eina_Bool _event_hook(Evas_Object *obj, Evas_Object *src,
  53                              Evas_Callback_Type type, void *event_info);
  54 static void _spacer_down_cb(void *data, Evas * e, Evas_Object * obj, void *event_info);
  55 static void _spacer_move_cb(void *data, Evas * e, Evas_Object * obj, void *event_info);
  56 static void _spacer_up_cb(void *data, Evas * e, Evas_Object * obj, void *event_info);
  57
  58 static const char SIG_CHANGED[] = "changed";
  59 static const char SIG_DELAY_CHANGED[] = "delay,changed";
  60 static const char SIG_DRAG_START[] = "slider,drag,start";
  61 static const char SIG_DRAG_STOP[] = "slider,drag,stop";
  62 static const Evas_Smart_Cb_Description _signals[] = {
  63   {SIG_CHANGED, ""},
  64   {SIG_DELAY_CHANGED, ""},
  65   {SIG_DRAG_START, ""},
  66   {SIG_DRAG_STOP, ""},
  67   {NULL, NULL}
  68 };
  69
  70 static Eina_Bool
  71 _event_hook(Evas_Object *obj, Evas_Object *src __UNUSED__, Evas_Callback_Type type, void *event_info)
  72 {
  73    Evas_Event_Mouse_Wheel *mev;
  74    Evas_Event_Key_Down *ev;
  75    Widget_Data *wd;
  76
  77    wd = elm_widget_data_get(obj);
  78    if (!wd) return EINA_FALSE;
  79    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  80
  81    if (type == EVAS_CALLBACK_KEY_DOWN) goto key_down;
  82    else if (type != EVAS_CALLBACK_MOUSE_WHEEL) return EINA_FALSE;
  83
  84    mev = event_info;
  85    if (mev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  86    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  87
  88    if (mev->z < 0) _drag_up(obj, NULL, NULL, NULL);
  89    else _drag_down(obj, NULL, NULL, NULL);
  90    mev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
  91    return EINA_TRUE;
  92
  93   key_down:
  94    ev = event_info;
  95    if (ev->event_flags & EVAS_EVENT_FLAG_ON_HOLD) return EINA_FALSE;
  96    if (elm_widget_disabled_get(obj)) return EINA_FALSE;
  97    if ((!strcmp(ev->keyname, "Left"))
  98        || (!strcmp(ev->keyname, "KP_Left")))
  99      {
 100         if (!wd->horizontal) return EINA_FALSE;
 101         if (!wd->inverted) _drag_down(obj, NULL, NULL, NULL);
 102         else _drag_up(obj, NULL, NULL, NULL);
 103         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 104         return EINA_TRUE;
 105      }
 106    else if ((!strcmp(ev->keyname, "Right"))
 107             || (!strcmp(ev->keyname, "KP_Right")))
 108      {
 109         if (!wd->horizontal) return EINA_FALSE;
 110         if (!wd->inverted) _drag_up(obj, NULL, NULL, NULL);
 111         else _drag_down(obj, NULL, NULL, NULL);
 112         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 113         return EINA_TRUE;
 114      }
 115    else if ((!strcmp(ev->keyname, "Up")) || (!strcmp(ev->keyname, "KP_Up")))
 116      {
 117         if (wd->horizontal) return EINA_FALSE;
 118         if (wd->inverted) _drag_up(obj, NULL, NULL, NULL);
 119         else _drag_down(obj, NULL, NULL, NULL);
 120         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 121         return EINA_TRUE;
 122      }
 123    else if ((!strcmp(ev->keyname, "Down")) || (!strcmp(ev->keyname, "KP_Down")))
 124      {
 125         if (wd->horizontal) return EINA_FALSE;
 126         if (wd->inverted) _drag_down(obj, NULL, NULL, NULL);
 127         else _drag_up(obj, NULL, NULL, NULL);
 128         ev->event_flags |= EVAS_EVENT_FLAG_ON_HOLD;
 129         return EINA_TRUE;
 130      }
 131    else return EINA_FALSE;
 132 }
 133
 134 static void
 135 _del_hook(Evas_Object *obj)
 136 {
 137    Widget_Data *wd = elm_widget_data_get(obj);
 138    if (!wd) return;
 139    if (wd->labels) eina_hash_free(wd->labels);
 140    if (wd->indicator) eina_stringshare_del(wd->units);
 141    if (wd->delay) ecore_timer_del(wd->delay);
 142    free(wd);
 143 }
 144
 145 static void
 146 _on_focus_hook(void *data __UNUSED__, Evas_Object *obj)
 147 {
 148    Widget_Data *wd = elm_widget_data_get(obj);
 149    if (!wd) return;
 150    if (elm_widget_focus_get(obj))
 151      {
 152         edje_object_signal_emit(wd->slider, "elm,action,focus", "elm");
 153         evas_object_focus_set(wd->slider, EINA_TRUE);
 154      }
 155    else
 156      {
 157         edje_object_signal_emit(wd->slider, "elm,action,unfocus", "elm");
 158         evas_object_focus_set(wd->slider, EINA_FALSE);
 159      }
 160 }
 161
 162 static void
 163 _mirrored_set(Evas_Object *obj, Eina_Bool rtl)
 164 {
 165    Widget_Data *wd = elm_widget_data_get(obj);
 166    if (!wd) return;
 167    edje_object_mirrored_set(wd->slider, rtl);
 168 }
 169
 170 static Eina_Bool
 171 _labels_foreach_text_set(const Eina_Hash *hash __UNUSED__, const void *key, void *data, void *fdata)
 172 {
 173   Widget_Data *wd = fdata;
 174
 175   edje_object_part_text_set(wd->slider, key, data);
 176
 177   return 1;
 178 }
 179
 180 static void
 181 _theme_hook(Evas_Object *obj)
 182 {
 183    Widget_Data *wd = elm_widget_data_get(obj);
 184    if (!wd) return;
 185    _elm_widget_mirrored_reload(obj);
 186    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 187    if (wd->horizontal)
 188      _elm_theme_object_set(obj, wd->slider, "slider", "horizontal", elm_widget_style_get(obj));
 189    else
 190      _elm_theme_object_set(obj, wd->slider, "slider", "vertical", elm_widget_style_get(obj));
 191    if (elm_widget_disabled_get(obj))
 192      edje_object_signal_emit(wd->slider, "elm,state,disabled", "elm");
 193    else
 194      edje_object_signal_emit(wd->slider, "elm,state,enabled", "elm");
 195    if (wd->icon)
 196      {
 197         edje_object_part_swallow(wd->slider, "elm.swallow.content", wd->icon);
 198         edje_object_signal_emit(wd->slider, "elm,state,icon,visible", "elm");
 199      }
 200    if (wd->end)
 201      edje_object_signal_emit(wd->slider, "elm,state,end,visible", "elm");
 202    else
 203      edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
 204    if (wd->labels)
 205      {
 206         eina_hash_foreach(wd->labels, _labels_foreach_text_set, wd);
 207             edje_object_signal_emit(wd->slider, "elm,state,text,visible", "elm");
 208      }
 209
 210    if (wd->units)
 211      edje_object_signal_emit(wd->slider, "elm,state,units,visible", "elm");
 212
 213    if (wd->horizontal)
 214      evas_object_size_hint_min_set(wd->spacer, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale, 1);
 215    else
 216      evas_object_size_hint_min_set(wd->spacer, 1, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale);
 217
 218    if (wd->inverted)
 219      edje_object_signal_emit(wd->slider, "elm,state,inverted,on", "elm");
 220
 221    edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
 222    _units_set(obj);
 223    _indicator_set(obj);
 224    edje_object_message_signal_process(wd->slider);
 225    edje_object_scale_set(wd->slider, elm_widget_scale_get(obj) * _elm_config->scale);
 226    _val_set(obj);
 227    _sizing_eval(obj);
 228 }
 229
 230 static void
 231 _disable_hook(Evas_Object *obj)
 232 {
 233    Widget_Data *wd = elm_widget_data_get(obj);
 234    if (!wd) return;
 235    if (elm_widget_disabled_get(obj))
 236      edje_object_signal_emit(wd->slider, "elm,state,disabled", "elm");
 237    else
 238      edje_object_signal_emit(wd->slider, "elm,state,enabled", "elm");
 239 }
 240
 241 static void
 242 _sizing_eval(Evas_Object *obj)
 243 {
 244    Widget_Data *wd = elm_widget_data_get(obj);
 245    Evas_Coord minw = -1, minh = -1, maxw = -1, maxh = -1;
 246    if (!wd) return;
 247    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 248    edje_object_size_min_restricted_calc(wd->slider, &minw, &minh, minw, minh);
 249    elm_coords_finger_size_adjust(1, &minw, 1, &minh);
 250    evas_object_size_hint_min_set(obj, minw, minh);
 251    evas_object_size_hint_max_set(obj, maxw, maxh);
 252 }
 253
 254 static void
 255 _changed_size_hints(void *data, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
 256 {
 257    Widget_Data *wd = elm_widget_data_get(data);
 258    if (!wd) return;
 259    if ((obj != wd->icon) && (obj != wd->end)) return;
 260    _sizing_eval(data);
 261 }
 262
 263 static void
 264 _sub_del(void *data __UNUSED__, Evas_Object *obj, void *event_info)
 265 {
 266    Widget_Data *wd = elm_widget_data_get(obj);
 267    Evas_Object *sub = event_info;
 268    if (!wd) return;
 269    if (sub == wd->icon)
 270      {
 271         edje_object_signal_emit(wd->slider, "elm,state,icon,hidden", "elm");
 272         evas_object_event_callback_del_full
 273            (sub, EVAS_CALLBACK_CHANGED_SIZE_HINTS, _changed_size_hints, obj);
 274         wd->icon = NULL;
 275         edje_object_message_signal_process(wd->slider);
 276         _sizing_eval(obj);
 277      }
 278    if (sub == wd->end)
 279      {
 280         edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
 281         evas_object_event_callback_del_full(sub,
 282                                             EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 283                                             _changed_size_hints, obj);
 284         wd->end = NULL;
 285         edje_object_message_signal_process(wd->slider);
 286         _sizing_eval(obj);
 287      }
 288 }
 289
 290 static Eina_Bool
 291 _delay_change(void *data)
 292 {
 293    Widget_Data *wd = elm_widget_data_get(data);
 294    if (!wd) return ECORE_CALLBACK_CANCEL;
 295    wd->delay = NULL;
 296    evas_object_smart_callback_call(data, SIG_DELAY_CHANGED, NULL);
 297    return ECORE_CALLBACK_CANCEL;
 298 }
 299
 300 static void
 301 _val_fetch(Evas_Object *obj)
 302 {
 303    Eina_Bool rtl;
 304    Widget_Data *wd = elm_widget_data_get(obj);
 305    double posx = 0.0, posy = 0.0, pos = 0.0, val;
 306    if (!wd) return;
 307    edje_object_part_drag_value_get(wd->slider, "elm.dragable.slider",
 308                                    &posx, &posy);
 309    if (wd->horizontal) pos = posx;
 310    else pos = posy;
 311
 312    rtl = elm_widget_mirrored_get(obj);
 313    if ((!rtl && wd->inverted) || (rtl &&
 314                                   ((!wd->horizontal && wd->inverted) ||
 315                                    (wd->horizontal && !wd->inverted)))) pos = 1.0 - pos;
 316    val = (pos * (wd->val_max - wd->val_min)) + wd->val_min;
 317    if (val != wd->val)
 318      {
 319         wd->val = val;
 320         evas_object_smart_callback_call(obj, SIG_CHANGED, NULL);
 321         if (wd->delay) ecore_timer_del(wd->delay);
 322         wd->delay = ecore_timer_add(0.2, _delay_change, obj);
 323      }
 324 }
 325
 326 static void
 327 _val_set(Evas_Object *obj)
 328 {
 329    Eina_Bool rtl;
 330    Widget_Data *wd = elm_widget_data_get(obj);
 331    double pos;
 332    if (!wd) return;
 333    if (wd->val_max > wd->val_min)
 334      pos = (wd->val - wd->val_min) / (wd->val_max - wd->val_min);
 335    else
 336      pos = 0.0;
 337    if (pos < 0.0) pos = 0.0;
 338    else if (pos > 1.0) pos = 1.0;
 339
 340    rtl = elm_widget_mirrored_get(obj);
 341    if ((!rtl && wd->inverted) || (rtl &&
 342                                   ((!wd->horizontal && wd->inverted) ||
 343                                    (wd->horizontal && !wd->inverted)))) pos = 1.0 - pos;
 344    edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", pos, pos);
 345 }
 346
 347 static void
 348 _units_set(Evas_Object *obj)
 349 {
 350    Widget_Data *wd = elm_widget_data_get(obj);
 351    if (!wd) return;
 352    if (wd->units_format_func)
 353      {
 354         const char *buf;
 355         buf = wd->units_format_func(wd->val);
 356         edje_object_part_text_set(wd->slider, "elm.units", buf);
 357         if (wd->units_format_free) wd->units_format_free(buf);
 358      }
 359    else if (wd->units)
 360      {
 361         char buf[1024];
 362
 363         snprintf(buf, sizeof(buf), wd->units, wd->val);
 364         edje_object_part_text_set(wd->slider, "elm.units", buf);
 365      }
 366    else
 367      edje_object_part_text_set(wd->slider, "elm.units", NULL);
 368 }
 369
 370 static void
 371 _indicator_set(Evas_Object *obj)
 372 {
 373    Widget_Data *wd = elm_widget_data_get(obj);
 374    if (!wd) return;
 375    if (wd->indicator_format_func)
 376      {
 377         const char *buf;
 378         buf = wd->indicator_format_func(wd->val);
 379         edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", buf);
 380         if (wd->indicator_format_free) wd->indicator_format_free(buf);
 381      }
 382    else if (wd->indicator)
 383      {
 384         char buf[1024];
 385         snprintf(buf, sizeof(buf), wd->indicator, wd->val);
 386         edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", buf);
 387      }
 388    else
 389      edje_object_part_text_set(wd->slider, "elm.dragable.slider:elm.indicator", NULL);
 390 }
 391
 392 static void
 393 _drag(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 394 {
 395    Widget_Data *wd = elm_widget_data_get((Evas_Object*)data);
 396    if (elm_widget_disabled_get(data)) return;
 397    _val_fetch(data);
 398    _units_set(data);
 399    _indicator_set(data);
 400    edje_object_signal_emit(wd->slider, "elm,state,drag", "elm");
 401    edje_object_message_signal_process(wd->slider);
 402 }
 403
 404 static void
 405 _drag_start(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 406 {
 407    Widget_Data *wd = elm_widget_data_get((Evas_Object*)data);
 408    if (elm_widget_disabled_get(data)) return;
 409    _val_fetch(data);
 410    evas_object_smart_callback_call(data, SIG_DRAG_START, NULL);
 411    _units_set(data);
 412    _indicator_set(data);
 413    elm_widget_scroll_freeze_push(data);
 414    edje_object_signal_emit(wd->slider, "elm,state,drag", "elm");
 415    edje_object_message_signal_process(wd->slider);
 416 }
 417
 418 static void
 419 _drag_stop(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 420 {
 421    if (elm_widget_disabled_get(data)) return;
 422    _val_fetch(data);
 423    evas_object_smart_callback_call(data, SIG_DRAG_STOP, NULL);
 424    _units_set(data);
 425    _indicator_set(data);
 426    elm_widget_scroll_freeze_pop(data);
 427 }
 428
 429 static void
 430 _drag_step(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 431 {
 432    if (elm_widget_disabled_get(data)) return;
 433    _val_fetch(data);
 434    _units_set(data);
 435    _indicator_set(data);
 436 }
 437
 438 static void
 439 _drag_up(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 440 {
 441    double step;
 442    Widget_Data *wd;
 443    if (elm_widget_disabled_get(data)) return;
 444
 445    wd = elm_widget_data_get(data);
 446    step = 0.05;
 447
 448    if (wd->inverted) step *= ELM_SLIDER_INVERTED_FACTOR;
 449
 450    edje_object_part_drag_step(wd->slider, "elm.dragable.slider", step, step);
 451 }
 452
 453 static void
 454 _drag_down(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
 455 {
 456    double step;
 457    Widget_Data *wd;
 458    if (elm_widget_disabled_get(data)) return;
 459
 460    wd = elm_widget_data_get(data);
 461    step = -0.05;
 462
 463    if (wd->inverted) step *= ELM_SLIDER_INVERTED_FACTOR;
 464
 465    edje_object_part_drag_step(wd->slider, "elm.dragable.slider", step, step);
 466 }
 467
 468 static void
 469 _spacer_down_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
 470 {
 471    Widget_Data *wd = elm_widget_data_get(data);
 472    Evas_Event_Mouse_Down *ev = event_info;
 473    Evas_Coord x, y, w, h;
 474    double button_x = 0.0, button_y = 0.0;
 475    if (elm_widget_disabled_get(data)) return;
 476
 477    wd->spacer_down = EINA_TRUE;
 478    evas_object_geometry_get(wd->spacer, &x, &y, &w, &h);
 479    if (wd->horizontal)
 480      {
 481         button_x = ((double)ev->canvas.x - (double)x) / (double)w;
 482         if (button_x > 1) button_x = 1;
 483         if (button_x < 0) button_x = 0;
 484      }
 485    else
 486      {
 487         button_y = ((double)ev->canvas.y - (double)y) / (double)h;
 488         if (button_y > 1) button_y = 1;
 489         if (button_y < 0) button_y = 0;
 490      }
 491    edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", button_x, button_y);
 492    _val_fetch(data);
 493    evas_object_smart_callback_call(data, SIG_DRAG_START, NULL);
 494    _units_set(data);
 495    _indicator_set(data);
 496    elm_widget_scroll_freeze_push(data);
 497    edje_object_signal_emit(wd->slider, "elm,state,indicator,show", "elm");
 498 }
 499
 500 static void
 501 _spacer_move_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info)
 502 {
 503    Widget_Data *wd = elm_widget_data_get(data);
 504    Evas_Event_Mouse_Move *ev = event_info;
 505    Evas_Coord x, y, w, h;
 506    double button_x = 0.0, button_y = 0.0;
 507    if (elm_widget_disabled_get(data)) return;
 508
 509    if  (wd->spacer_down)
 510      {
 511         evas_object_geometry_get(wd->spacer, &x, &y, &w, &h);
 512         if (wd->horizontal)
 513           {
 514              button_x = ((double)ev->cur.canvas.x - (double)x) / (double)w;
 515              if (button_x > 1) button_x = 1;
 516              if (button_x < 0) button_x = 0;
 517           }
 518         else
 519           {
 520              button_y = ((double)ev->cur.canvas.y - (double)y) / (double)h;
 521              if (button_y > 1) button_y = 1;
 522              if (button_y < 0) button_y = 0;
 523           }
 524         edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", button_x, button_y);
 525         _val_fetch(data);
 526         _units_set(data);
 527         _indicator_set(data);
 528      }
 529 }
 530
 531 static void
 532 _spacer_up_cb(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
 533 {
 534    Widget_Data *wd = elm_widget_data_get(data);
 535    if (elm_widget_disabled_get(data)) return;
 536
 537    if (wd->spacer_down) wd->spacer_down = EINA_FALSE;
 538    _val_fetch(data);
 539    evas_object_smart_callback_call(data, SIG_DRAG_STOP, NULL);
 540    _units_set(data);
 541    _indicator_set(data);
 542    elm_widget_scroll_freeze_pop(data);
 543    edje_object_signal_emit(wd->slider, "elm,state,indicator,hide", "elm");
 544 }
 545
 546 static void
 547 _elm_slider_label_set(Evas_Object *obj, const char *part, const char *label)
 548 {
 549    ELM_CHECK_WIDTYPE(obj, widtype);
 550    Widget_Data *wd = elm_widget_data_get(obj);
 551    const char* default_part = "elm.text";
 552    const char* real_part;
 553
 554    if (!wd) return;
 555
 556    if (!part)
 557      real_part = default_part;
 558    else
 559      real_part = part;
 560
 561    if (wd->labels)
 562      {
 563        const char* old_label;
 564
 565        old_label = eina_hash_find(wd->labels, real_part);
 566        if (!old_label)
 567            eina_hash_add(wd->labels, real_part, eina_stringshare_add(label));
 568        else
 569          {
 570            eina_stringshare_ref(old_label);
 571            eina_hash_modify(wd->labels, real_part, eina_stringshare_add(label));
 572            eina_stringshare_del(old_label);
 573          }
 574      }
 575
 576    if (label)
 577      {
 578         edje_object_signal_emit(wd->slider, "elm,state,text,visible", "elm");
 579         edje_object_message_signal_process(wd->slider);
 580      }
 581    else
 582      {
 583         edje_object_signal_emit(wd->slider, "elm,state,text,hidden", "elm");
 584         edje_object_message_signal_process(wd->slider);
 585      }
 586
 587    edje_object_part_text_set(wd->slider, real_part, label);
 588    _sizing_eval(obj);
 589 }
 590
 591 static const char *
 592 _elm_slider_label_get(const Evas_Object *obj, const char *part)
 593 {
 594    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 595    Widget_Data *wd = elm_widget_data_get(obj);
 596
 597    if (!wd) return NULL;
 598    if (!wd->labels) return NULL;
 599
 600    if (!part)
 601      return eina_hash_find(wd->labels, "elm.text");
 602    return eina_hash_find(wd->labels, part);
 603 }
 604
 605 static void
 606 _icon_set(Evas_Object *obj, Evas_Object *icon)
 607 {
 608    Widget_Data *wd = elm_widget_data_get(obj);
 609    if (!wd) return;
 610    if (wd->icon == icon) return;
 611    if (wd->icon) evas_object_del(wd->icon);
 612    wd->icon = icon;
 613    if (icon)
 614      {
 615         elm_widget_sub_object_add(obj, icon);
 616         evas_object_event_callback_add(icon, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 617                                        _changed_size_hints, obj);
 618         edje_object_part_swallow(wd->slider, "elm.swallow.icon", icon);
 619         edje_object_signal_emit(wd->slider, "elm,state,icon,visible", "elm");
 620         edje_object_message_signal_process(wd->slider);
 621      }
 622    _sizing_eval(obj);
 623 }
 624
 625 static Evas_Object *
 626 _icon_unset(Evas_Object *obj)
 627 {
 628    Widget_Data *wd = elm_widget_data_get(obj);
 629    Evas_Object *ret = NULL;
 630    if (!wd) return NULL;
 631    if (wd->icon)
 632      {
 633         elm_widget_sub_object_del(obj, wd->icon);
 634         evas_object_event_callback_del_full(wd->icon,
 635                                             EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 636                                             _changed_size_hints, obj);
 637         ret = wd->icon;
 638         edje_object_part_unswallow(wd->slider, wd->icon);
 639         edje_object_signal_emit(wd->slider, "elm,state,icon,hidden", "elm");
 640         wd->icon = NULL;
 641         _sizing_eval(obj);
 642      }
 643    return ret;
 644 }
 645
 646 static void
 647 _end_set(Evas_Object *obj, Evas_Object *end)
 648 {
 649    Widget_Data *wd = elm_widget_data_get(obj);
 650    if (!wd) return;
 651    if (wd->end == end) return;
 652    if (wd->end) evas_object_del(wd->end);
 653    wd->end = end;
 654    if (end)
 655      {
 656         elm_widget_sub_object_add(obj, end);
 657         evas_object_event_callback_add(end, EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 658                                        _changed_size_hints, obj);
 659         edje_object_part_swallow(wd->slider, "elm.swallow.end", end);
 660         edje_object_signal_emit(wd->slider, "elm,state,end,visible", "elm");
 661         edje_object_message_signal_process(wd->slider);
 662      }
 663    _sizing_eval(obj);
 664 }
 665
 666 static Evas_Object *
 667 _end_unset(Evas_Object *obj)
 668 {
 669    Widget_Data *wd = elm_widget_data_get(obj);
 670    Evas_Object *ret = NULL;
 671    if (!wd) return NULL;
 672    if (wd->end)
 673      {
 674         elm_widget_sub_object_del(obj, wd->end);
 675         evas_object_event_callback_del_full(wd->end,
 676                                             EVAS_CALLBACK_CHANGED_SIZE_HINTS,
 677                                             _changed_size_hints, obj);
 678         ret = wd->end;
 679         edje_object_part_unswallow(wd->slider, wd->end);
 680         edje_object_signal_emit(wd->slider, "elm,state,end,hidden", "elm");
 681         wd->end = NULL;
 682         _sizing_eval(obj);
 683      }
 684    return ret;
 685 }
 686
 687 static void
 688 _content_set_hook(Evas_Object *obj, const char *part, Evas_Object *content)
 689 {
 690    ELM_CHECK_WIDTYPE(obj, widtype);
 691    if (!part || !strcmp(part, "icon"))
 692      _icon_set(obj, content);
 693    else if (!strcmp(part, "end"))
 694      _end_set(obj, content);
 695 }
 696
 697 static Evas_Object *
 698 _content_get_hook(const Evas_Object *obj, const char *part)
 699 {
 700    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 701    Widget_Data *wd;
 702    wd = elm_widget_data_get(obj);
 703    if (!wd) return NULL;
 704    if (!part || !strcmp(part, "icon"))
 705      return wd->icon;
 706    else if (!strcmp(part, "end"))
 707      return wd->end;
 708    return NULL;
 709 }
 710
 711 static Evas_Object *
 712 _content_unset_hook(Evas_Object *obj, const char *part)
 713 {
 714    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 715    if (!part || !strcmp(part, "icon"))
 716      return _icon_unset(obj);
 717    else if (!strcmp(part, "end"))
 718      return _end_unset(obj);
 719    return NULL;
 720 }
 721
 722 static void
 723 _hash_labels_free_cb(void* label)
 724 {
 725   if (label)
 726     eina_stringshare_del(label);
 727 }
 728
 729 EAPI Evas_Object *
 730 elm_slider_add(Evas_Object *parent)
 731 {
 732    Evas_Object *obj;
 733    Evas *e;
 734    Widget_Data *wd;
 735
 736    ELM_WIDGET_STANDARD_SETUP(wd, Widget_Data, parent, e, obj, NULL);
 737
 738    ELM_SET_WIDTYPE(widtype, "slider");
 739    elm_widget_type_set(obj, "slider");
 740    elm_widget_sub_object_add(parent, obj);
 741    elm_widget_on_focus_hook_set(obj, _on_focus_hook, NULL);
 742    elm_widget_data_set(obj, wd);
 743    elm_widget_del_hook_set(obj, _del_hook);
 744    elm_widget_theme_hook_set(obj, _theme_hook);
 745    elm_widget_disable_hook_set(obj, _disable_hook);
 746    elm_widget_can_focus_set(obj, EINA_TRUE);
 747    elm_widget_event_hook_set(obj, _event_hook);
 748    elm_widget_text_set_hook_set(obj, _elm_slider_label_set);
 749    elm_widget_text_get_hook_set(obj, _elm_slider_label_get);
 750    elm_widget_content_set_hook_set(obj, _content_set_hook);
 751    elm_widget_content_get_hook_set(obj, _content_get_hook);
 752    elm_widget_content_unset_hook_set(obj, _content_unset_hook);
 753
 754    wd->horizontal = EINA_TRUE;
 755    wd->indicator_show = EINA_TRUE;
 756    wd->val = 0.0;
 757    wd->val_min = 0.0;
 758    wd->val_max = 1.0;
 759    wd->labels = eina_hash_string_superfast_new(_hash_labels_free_cb);
 760
 761    wd->slider = edje_object_add(e);
 762    _elm_theme_object_set(obj, wd->slider, "slider", "horizontal", "default");
 763    elm_widget_resize_object_set(obj, wd->slider);
 764    edje_object_signal_callback_add(wd->slider, "drag", "*", _drag, obj);
 765    edje_object_signal_callback_add(wd->slider, "drag,start", "*", _drag_start, obj);
 766    edje_object_signal_callback_add(wd->slider, "drag,stop", "*", _drag_stop, obj);
 767    edje_object_signal_callback_add(wd->slider, "drag,step", "*", _drag_step, obj);
 768    edje_object_signal_callback_add(wd->slider, "drag,page", "*", _drag_stop, obj);
 769    //   edje_object_signal_callback_add(wd->slider, "drag,set", "*", _drag_stop, obj);
 770    edje_object_part_drag_value_set(wd->slider, "elm.dragable.slider", 0.0, 0.0);
 771
 772    wd->spacer = evas_object_rectangle_add(e);
 773    evas_object_color_set(wd->spacer, 0, 0, 0, 0);
 774    evas_object_pass_events_set(wd->spacer, EINA_TRUE);
 775    elm_widget_sub_object_add(obj, wd->spacer);
 776    edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
 777    evas_object_event_callback_add(wd->spacer, EVAS_CALLBACK_MOUSE_DOWN, _spacer_down_cb, obj);
 778    evas_object_event_callback_add(wd->spacer, EVAS_CALLBACK_MOUSE_MOVE, _spacer_move_cb, obj);
 779    evas_object_event_callback_add(wd->spacer, EVAS_CALLBACK_MOUSE_UP, _spacer_up_cb, obj);
 780    evas_object_smart_callback_add(obj, "sub-object-del", _sub_del, obj);
 781
 782    _mirrored_set(obj, elm_widget_mirrored_get(obj));
 783    _sizing_eval(obj);
 784
 785    // TODO: convert Elementary to subclassing of Evas_Smart_Class
 786    // TODO: and save some bytes, making descriptions per-class and not instance!
 787    evas_object_smart_callbacks_descriptions_set(obj, _signals);
 788    return obj;
 789 }
 790
 791 EAPI void
 792 elm_slider_label_set(Evas_Object *obj, const char *label)
 793 {
 794    _elm_slider_label_set(obj, NULL, label);
 795 }
 796
 797 EAPI const char *
 798 elm_slider_label_get(const Evas_Object *obj)
 799 {
 800    return _elm_slider_label_get(obj, NULL);
 801 }
 802
 803 EAPI void
 804 elm_slider_icon_set(Evas_Object *obj, Evas_Object *icon)
 805 {
 806    _content_set_hook(obj, "icon", icon);
 807 }
 808
 809 EAPI Evas_Object *
 810 elm_slider_icon_unset(Evas_Object *obj)
 811 {
 812    return _content_unset_hook(obj, "icon");
 813 }
 814
 815 EAPI Evas_Object *
 816 elm_slider_icon_get(const Evas_Object *obj)
 817 {
 818    return _content_get_hook(obj, "icon");
 819 }
 820
 821 EAPI void
 822 elm_slider_span_size_set(Evas_Object *obj, Evas_Coord size)
 823 {
 824    ELM_CHECK_WIDTYPE(obj, widtype);
 825    Widget_Data *wd = elm_widget_data_get(obj);
 826    if (!wd) return;
 827    if (wd->size == size) return;
 828    wd->size = size;
 829    if (wd->horizontal)
 830      evas_object_size_hint_min_set(wd->spacer, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale, 1);
 831    else
 832      evas_object_size_hint_min_set(wd->spacer, 1, (double)wd->size * elm_widget_scale_get(obj) * _elm_config->scale);
 833    if (wd->indicator_show)
 834      edje_object_signal_emit(wd->slider, "elm,state,val,show", "elm");
 835    else
 836      edje_object_signal_emit(wd->slider, "elm,state,val,hide", "elm");
 837    edje_object_part_swallow(wd->slider, "elm.swallow.bar", wd->spacer);
 838    _sizing_eval(obj);
 839 }
 840
 841 EAPI Evas_Coord
 842 elm_slider_span_size_get(const Evas_Object *obj)
 843 {
 844    ELM_CHECK_WIDTYPE(obj, widtype) 0;
 845    Widget_Data *wd = elm_widget_data_get(obj);
 846    if (!wd) return 0;
 847    return wd->size;
 848 }
 849
 850 EAPI void
 851 elm_slider_unit_format_set(Evas_Object *obj, const char *units)
 852 {
 853    ELM_CHECK_WIDTYPE(obj, widtype);
 854    Widget_Data *wd = elm_widget_data_get(obj);
 855    if (!wd) return;
 856    eina_stringshare_replace(&wd->units, units);
 857    if (units)
 858      {
 859         edje_object_signal_emit(wd->slider, "elm,state,units,visible", "elm");
 860         edje_object_message_signal_process(wd->slider);
 861      }
 862    else
 863      {
 864         edje_object_signal_emit(wd->slider, "elm,state,units,hidden", "elm");
 865         edje_object_message_signal_process(wd->slider);
 866      }
 867    _units_set(obj);
 868    _sizing_eval(obj);
 869 }
 870
 871 EAPI const char *
 872 elm_slider_unit_format_get(const Evas_Object *obj)
 873 {
 874    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 875    Widget_Data *wd = elm_widget_data_get(obj);
 876    if (!wd) return NULL;
 877    return wd->units;
 878 }
 879
 880 EAPI void
 881 elm_slider_indicator_format_set(Evas_Object *obj, const char *indicator)
 882 {
 883    ELM_CHECK_WIDTYPE(obj, widtype);
 884    Widget_Data *wd = elm_widget_data_get(obj);
 885    if (!wd) return;
 886    eina_stringshare_replace(&wd->indicator, indicator);
 887    _indicator_set(obj);
 888 }
 889
 890 EAPI const char *
 891 elm_slider_indicator_format_get(const Evas_Object *obj)
 892 {
 893    ELM_CHECK_WIDTYPE(obj, widtype) NULL;
 894    Widget_Data *wd = elm_widget_data_get(obj);
 895    if (!wd) return NULL;
 896    return wd->indicator;
 897 }
 898
 899 EAPI void
 900 elm_slider_horizontal_set(Evas_Object *obj, Eina_Bool horizontal)
 901 {
 902    ELM_CHECK_WIDTYPE(obj, widtype);
 903    Widget_Data *wd = elm_widget_data_get(obj);
 904    if (!wd) return;
 905    horizontal = !!horizontal;
 906    if (wd->horizontal == horizontal) return;
 907    wd->horizontal = horizontal;
 908    _theme_hook(obj);
 909 }
 910
 911 EAPI Eina_Bool
 912 elm_slider_horizontal_get(const Evas_Object *obj)
 913 {
 914    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 915    Widget_Data *wd = elm_widget_data_get(obj);
 916    if (!wd) return EINA_FALSE;
 917    return wd->horizontal;
 918 }
 919
 920 EAPI void
 921 elm_slider_min_max_set(Evas_Object *obj, double min, double max)
 922 {
 923    ELM_CHECK_WIDTYPE(obj, widtype);
 924    Widget_Data *wd = elm_widget_data_get(obj);
 925    if (!wd) return;
 926    if ((wd->val_min == min) && (wd->val_max == max)) return;
 927    wd->val_min = min;
 928    wd->val_max = max;
 929    if (wd->val < wd->val_min) wd->val = wd->val_min;
 930    if (wd->val > wd->val_max) wd->val = wd->val_max;
 931    _val_set(obj);
 932    _units_set(obj);
 933    _indicator_set(obj);
 934 }
 935
 936 EAPI void
 937 elm_slider_min_max_get(const Evas_Object *obj, double *min, double *max)
 938 {
 939    if (min) *min = 0.0;
 940    if (max) *max = 0.0;
 941    ELM_CHECK_WIDTYPE(obj, widtype);
 942    Widget_Data *wd = elm_widget_data_get(obj);
 943    if (!wd) return;
 944    if (min) *min = wd->val_min;
 945    if (max) *max = wd->val_max;
 946 }
 947
 948 EAPI void
 949 elm_slider_value_set(Evas_Object *obj, double val)
 950 {
 951    ELM_CHECK_WIDTYPE(obj, widtype);
 952    Widget_Data *wd = elm_widget_data_get(obj);
 953    if (!wd) return;
 954    if (wd->val == val) return;
 955    wd->val = val;
 956    if (wd->val < wd->val_min) wd->val = wd->val_min;
 957    if (wd->val > wd->val_max) wd->val = wd->val_max;
 958    _val_set(obj);
 959    _units_set(obj);
 960    _indicator_set(obj);
 961 }
 962
 963 EAPI double
 964 elm_slider_value_get(const Evas_Object *obj)
 965 {
 966    ELM_CHECK_WIDTYPE(obj, widtype) 0.0;
 967    Widget_Data *wd = elm_widget_data_get(obj);
 968    if (!wd) return 0.0;
 969    return wd->val;
 970 }
 971
 972 EAPI void
 973 elm_slider_inverted_set(Evas_Object *obj, Eina_Bool inverted)
 974 {
 975    ELM_CHECK_WIDTYPE(obj, widtype);
 976    Widget_Data *wd = elm_widget_data_get(obj);
 977    if (!wd) return;
 978    inverted = !!inverted;
 979    if (wd->inverted == inverted) return;
 980    wd->inverted = inverted;
 981    if (wd->inverted)
 982      edje_object_signal_emit(wd->slider, "elm,state,inverted,on", "elm");
 983    else
 984      edje_object_signal_emit(wd->slider, "elm,state,inverted,off", "elm");
 985    edje_object_message_signal_process(wd->slider);
 986    _val_set(obj);
 987    _units_set(obj);
 988    _indicator_set(obj);
 989 }
 990
 991 EAPI Eina_Bool
 992 elm_slider_inverted_get(const Evas_Object *obj)
 993 {
 994    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
 995    Widget_Data *wd = elm_widget_data_get(obj);
 996    if (!wd) return EINA_FALSE;
 997    return wd->inverted;
 998 }
 999
1000 EAPI void
1001 elm_slider_indicator_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str))
1002 {
1003    ELM_CHECK_WIDTYPE(obj, widtype);
1004    Widget_Data *wd = elm_widget_data_get(obj);
1005    if (!wd) return;
1006    wd->indicator_format_func = func;
1007    wd->indicator_format_free = free_func;
1008    _indicator_set(obj);
1009 }
1010
1011 EAPI void
1012 elm_slider_units_format_function_set(Evas_Object *obj, const char *(*func)(double val), void (*free_func)(const char *str))
1013 {
1014    ELM_CHECK_WIDTYPE(obj, widtype);
1015    Widget_Data *wd = elm_widget_data_get(obj);
1016    if (!wd) return;
1017    wd->units_format_func = func;
1018    wd->units_format_free = free_func;
1019    _indicator_set(obj);
1020 }
1021
1022 EAPI void
1023 elm_slider_end_set(Evas_Object *obj, Evas_Object *end)
1024 {
1025    _content_set_hook(obj, "end", end);
1026 }
1027
1028 EAPI Evas_Object *
1029 elm_slider_end_unset(Evas_Object *obj)
1030 {
1031    return _content_unset_hook(obj, "end");
1032 }
1033
1034 EAPI Evas_Object *
1035 elm_slider_end_get(const Evas_Object *obj)
1036 {
1037    return _content_get_hook(obj, "end");
1038 }
1039
1040 EAPI void
1041 elm_slider_indicator_show_set(Evas_Object *obj, Eina_Bool show)
1042 {
1043    ELM_CHECK_WIDTYPE(obj, widtype);
1044    Widget_Data *wd = elm_widget_data_get(obj);
1045    if (show) {
1046         wd->indicator_show = EINA_TRUE;
1047         edje_object_signal_emit(wd->slider, "elm,state,val,show", "elm");
1048    }
1049    else {
1050         wd->indicator_show = EINA_FALSE;
1051         edje_object_signal_emit(wd->slider, "elm,state,val,hide", "elm");
1052    }
1053 }
1054
1055 EAPI Eina_Bool
1056 elm_slider_indicator_show_get(const Evas_Object *obj)
1057 {
1058    ELM_CHECK_WIDTYPE(obj, widtype) EINA_FALSE;
1059    Widget_Data *wd = elm_widget_data_get(obj);
1060    if (!wd) return EINA_FALSE;
1061    return wd->indicator_show;
1062 }
1063