src/lib/elm_animator.c

   1 #include <Elementary.h>
   2
   3 /**
   4  * @addtogroup Animator Animator
   5  * @ingroup Elementary
   6  *
   7  * Support basic animation functions for Evas_Object
   8 */
   9
  10 static const float _in_out_table[181] = {
  11 0, 3.08652e-05, 0.000123472, 0.000277855, 0.000494071, 0.000772201, 0.00111235, 0.00151464, 0.00197923, 0.00250628, 0.00309601, 0.00374862, 0.00446438, 0.00524354, 0.00608643, 0.00699335, 0.00796467,
  12 0.00900077, 0.0101021, 0.011269, 0.012502, 0.0138016, 0.0151684, 0.0166028, 0.0181056, 0.0196773, 0.0213187, 0.0230304, 0.0248132, 0.026668, 0.0285955, 0.0305966, 0.0326724, 0.0348238, 0.0370519,
  13 0.0393577, 0.0417424, 0.0442074, 0.0467538, 0.0493831, 0.0520968, 0.0548963, 0.0577834, 0.0607596, 0.063827, 0.0669873, 0.0702427, 0.0735953, 0.0770474, 0.0806015, 0.0842603, 0.0880264, 0.0919029,
  14 0.095893, 0.1, 0.104228, 0.10858, 0.11306, 0.117674,  0.122427, 0.127322,  0.132367, 0.137567, 0.142929, 0.14846, 0.154169, 0.160065, 0.166158, 0.172458, 0.178977,0.18573, 0.192732, 0.2, 0.207554,
  15 0.215417, 0.223615, 0.232178, 0.241144, 0.250556, 0.260466, 0.270939, 0.282055, 0.29392, 0.30667, 0.320495, 0.335664, 0.352594, 0.371981, 0.395178, 0.425672, 0.5, 0.574328, 0.604822, 0.628019,
  16 0.647406, 0.664336, 0.679505, 0.69333, 0.70608, 0.717945, 0.729061, 0.739534, 0.749444, 0.758856, 0.767822, 0.776385, 0.784583, 0.792446, 0.8, 0.807268, 0.81427, 0.821023, 0.827542, 0.833842,
  17 0.839935, 0.845831, 0.85154, 0.857071, 0.862433, 0.867633, 0.872678, 0.877573, 0.882326, 0.88694, 0.89142, 0.895772, 0.9, 0.904107, 0.908097, 0.911974, 0.91574, 0.919398, 0.922953, 0.926405,
  18 0.929757, 0.933013, 0.936173, 0.93924, 0.942217, 0.945104, 0.947903, 0.950617, 0.953246, 0.955793, 0.958258, 0.960642, 0.962948, 0.965176, 0.967328, 0.969403, 0.971405, 0.973332, 0.975187, 0.97697,
  19 0.978681, 0.980323, 0.981894, 0.983397, 0.984832, 0.986198, 0.987498, 0.988731, 0.989898, 0.990999, 0.992035, 0.993007, 0.993914, 0.994756, 0.995536, 0.996251, 0.996904, 0.997494, 0.998021, 0.998485,
  20 0.998888, 0.999228, 0.999506, 0.999722, 0.999877, 0.999969, 1 };
  21
  22
  23 static const float _in_table[181] = {
  24 0, 1.54322e-05, 6.17303e-05, 0.000138899, 0.000246944, 0.000385877, 0.00055571, 0.000756459, 0.000988143, 0.00125078, 0.0015444, 0.00186903, 0.0022247, 0.00261143, 0.00302928, 0.00347827, 0.00395845,
  25 0.00446987, 0.00501256, 0.00558659, 0.00619201, 0.00682887, 0.00749724, 0.00819718, 0.00892875, 0.00969203, 0.0104871, 0.011314, 0.0121729, 0.0130637, 0.0139867, 0.0149419, 0.0159293, 0.0169492,
  26 0.0180015, 0.0190865, 0.0202041, 0.0213546, 0.0225379, 0.0237544, 0.025004, 0.0262869, 0.0276032, 0.0289531, 0.0303367, 0.0317542, 0.0332056, 0.0346912, 0.0362112, 0.0377656, 0.0393546, 0.0409785,
  27 0.0426374, 0.0443314, 0.0460608, 0.0478257, 0.0496265, 0.0514631, 0.0533359, 0.0552451, 0.057191, 0.0591736, 0.0611933, 0.0632503, 0.0653449, 0.0674772, 0.0696476, 0.0718564, 0.0741037, 0.0763899,
  28 0.0787153, 0.0810802, 0.0834849, 0.0859296, 0.0884148, 0.0909407, 0.0935076, 0.0961161, 0.0987663, 0.101459, 0.104194, 0.106971, 0.109793, 0.112658, 0.115567, 0.11852, 0.121519, 0.124564,  0.127654,
  29 0.130791, 0.133975, 0.137206, 0.140485, 0.143813, 0.147191, 0.150618, 0.154095, 0.157623, 0.161203, 0.164835, 0.168521, 0.17226, 0.176053, 0.179901, 0.183806, 0.187767, 0.191786, 0.195863, 0.2,
  30 0.204197, 0.208455, 0.212776, 0.217159, 0.221607, 0.226121, 0.230701, 0.235349, 0.240066, 0.244853, 0.249712, 0.254644, 0.259651, 0.264733, 0.269893, 0.275133, 0.280454, 0.285857, 0.291345, 0.29692,
  31 0.302584, 0.308339, 0.314187, 0.320131, 0.326173, 0.332316, 0.338562, 0.344915, 0.351378, 0.357955, 0.364647, 0.371461, 0.378398, 0.385464, 0.392663, 0.4, 0.40748, 0.415108, 0.42289, 0.430833,
  32 0.438944, 0.447229, 0.455697, 0.464357, 0.473217, 0.482289, 0.491583, 0.501112, 0.51089, 0.520932, 0.531255, 0.541877, 0.552821, 0.56411, 0.575772, 0.587839, 0.600347, 0.61334, 0.626867, 0.640989,
  33 0.65578, 0.671329, 0.68775, 0.705189, 0.723838, 0.743962, 0.76594, 0.790356, 0.818188, 0.851343, 0.894737, 1 };
  34
  35
  36 static const float _out_table[181] = {
  37 0, 0.105263, 0.148657, 0.181812, 0.209644, 0.23406, 0.256038, 0.276162, 0.294811, 0.31225, 0.328671, 0.34422, 0.359011, 0.373133, 0.38666, 0.399653, 0.412161, 0.424228, 0.43589, 0.447179, 0.458123,
  38 0.468745, 0.479068, 0.48911, 0.498888, 0.508417, 0.517711, 0.526783, 0.535643, 0.544303, 0.552771, 0.561056, 0.569167, 0.57711, 0.584892, 0.59252, 0.6, 0.607337, 0.614536, 0.621602, 0.628539, 0.635353,
  39 0.642045, 0.648622, 0.655085, 0.661438, 0.667684, 0.673827, 0.679869, 0.685813, 0.691661, 0.697416, 0.70308, 0.708655, 0.714143, 0.719546, 0.724867, 0.730107, 0.735267, 0.740349, 0.745356, 0.750288,
  40 0.755147, 0.759934, 0.764651, 0.769299, 0.773879, 0.778393, 0.782841, 0.787224, 0.791545, 0.795803, 0.8, 0.804137, 0.808214, 0.812233, 0.816194, 0.820099, 0.823947, 0.82774, 0.831479, 0.835165,
  41 0.838797, 0.842377, 0.845905, 0.849382, 0.852809, 0.856187, 0.859515, 0.862794, 0.866025, 0.869209, 0.872346, 0.875436, 0.878481, 0.88148, 0.884433, 0.887342, 0.890207, 0.893029, 0.895806, 0.898541,
  42 0.901234, 0.903884, 0.906492, 0.909059, 0.911585, 0.91407, 0.916515, 0.91892, 0.921285, 0.92361, 0.925896, 0.928144, 0.930352, 0.932523, 0.934655, 0.93675, 0.938807, 0.940826, 0.942809, 0.944755,
  43 0.946664, 0.948537, 0.950374, 0.952174, 0.953939, 0.955669, 0.957363, 0.959021, 0.960645, 0.962234, 0.963789, 0.965309, 0.966794, 0.968246, 0.969663, 0.971047, 0.972397, 0.973713, 0.974996, 0.976246,
  44 0.977462, 0.978645, 0.979796, 0.980914, 0.981998, 0.983051, 0.984071, 0.985058, 0.986013, 0.986936, 0.987827,0.988686, 0.989513, 0.990308, 0.991071, 0.991803, 0.992503, 0.993171, 0.993808, 0.994413,
  45 0.994987, 0.99553, 0.996042, 0.996522, 0.996971, 0.997389, 0.997775, 0.998131, 0.998456,  0.998749, 0.999012, 0.999244, 0.999444, 0.999614, 0.999753, 0.999861, 0.999938, 0.999985, 1 };
  46
  47 struct _Animator {
  48         Evas_Object* parent;
  49         Ecore_Animator* animator;
  50         double begin_time;
  51         double cur_time;
  52         double duration;
  53         unsigned int repeat_cnt;
  54         unsigned int cur_repeat_cnt;
  55         double (*curve_op)( const double );
  56         void (*animator_op)(void*, Elm_Animator*, const double);
  57         void* animator_arg;
  58         void (*completion_op)(void*);
  59         void* completion_arg;
  60         Eina_Bool auto_reverse :1;
  61         Eina_Bool on_animating : 1;
  62 };
  63
  64 static double _animator_curve_linear(const double frame);
  65 static double _animator_curve_in_out(const double frame);
  66 static double _animator_curve_in(const double frame);
  67 static double _animator_curve_out(const double frame);
  68 static unsigned int _animator_compute_reverse_repeat_count(unsigned int cnt);
  69 static unsigned int _animator_compute_no_reverse_repeat_count(unsigned int cnt);
  70 static int _animator_animate_cb(void* data);
  71 static void _delete_animator(Elm_Animator* animator);
  72
  73 static unsigned int
  74 _animator_compute_reverse_repeat_count(unsigned int cnt)
  75 {
  76         return ( ( cnt  + 1 ) * 2 ) - 1;
  77 }
  78
  79 static unsigned int
  80 _animator_compute_no_reverse_repeat_count(unsigned int cnt)
  81 {
  82         return cnt / 2;
  83 }
  84
  85 static double
  86 _animator_curve_linear(const double frame)
  87 {
  88         return frame;
  89 }
  90
  91 static double
  92 _animator_curve_in_out(const double frame)
  93 {
  94         return _in_out_table[ (int) (frame*180) ];
  95 }
  96
  97 static double
  98 _animator_curve_in(const double frame)
  99 {
 100         return  _in_table[ (int) (frame*180) ];
 101 }
 102
 103 static double
 104 _animator_curve_out(const double frame)
 105 {
 106         return  _out_table[ (int) (frame * 180) ];
 107 }
 108
 109 static void
 110 _delete_animator(Elm_Animator* animator)
 111 {
 112         if(animator->animator)
 113         {
 114                 ecore_animator_del(animator->animator);
 115                 animator->animator = NULL;
 116         }
 117 }
 118
 119 static int
 120 _animator_animate_cb(void* data)
 121 {
 122         Elm_Animator* animator = (Elm_Animator*) data;
 123         //animator->cur_time = ecore_time_get();
 124         animator->cur_time = ecore_loop_time_get();
 125         double elapsed_time = animator->cur_time - animator->begin_time;
 126
 127         //TODO: HOW TO MAKE IT PRECIOUS TIME? -> Use Interpolation!!
 128         if( elapsed_time > animator->duration ) elapsed_time = animator->duration;
 129
 130         float frame = animator->curve_op(elapsed_time/animator->duration);
 131
 132         //Reverse?
 133         if(animator->auto_reverse == EINA_TRUE)
 134         {
 135                 if( animator->cur_repeat_cnt % 2 == 0 ) frame = 1 - frame;
 136         }
 137
 138         if(animator->duration > 0)
 139                 animator->animator_op(animator->animator_arg, animator, frame);
 140
 141         //Not end. Keep going.
 142         if(elapsed_time < animator->duration) return ECORE_CALLBACK_RENEW;
 143
 144         //Repeat and reverse and time done!
 145         if(animator->cur_repeat_cnt == 0)
 146         {
 147                 animator->on_animating = EINA_FALSE;
 148                 _delete_animator( animator );
 149                 if(animator->completion_op) animator->completion_op(animator->completion_arg);
 150                 return ECORE_CALLBACK_CANCEL;
 151         }
 152
 153         //Repeat Case
 154         --animator->cur_repeat_cnt;
 155 //      animator->begin_time = ecore_time_get();
 156         animator->begin_time = ecore_loop_time_get();
 157
 158         return ECORE_CALLBACK_RENEW;
 159 }
 160
 161 /**
 162  * Get the value of reverse mode.
 163  *
 164  * @param animator Animator object
 165  * @return EINA_TRUE is reverse mode
 166  *
 167  * @ingroup Animator
 168  */
 169 EAPI Eina_Bool elm_animator_auto_reverse_get(Elm_Animator* animator)
 170 {
 171         if(!animator) return EINA_FALSE;
 172         return animator->auto_reverse;
 173 }
 174
 175 /**
 176  * Get the value of repeat count.
 177  *
 178  * @param animator Animator object
 179  * @return Repeat count
 180  *
 181  * @ingroup Animator
 182  */
 183 EAPI unsigned int elm_animator_repeat_get(Elm_Animator* animator)
 184 {
 185         if(!animator) return EINA_FALSE;
 186         return animator->repeat_cnt;
 187 }
 188
 189 /**
 190  * Set auto reverse function.
 191  *
 192  * @param animator Animator object
 193  * @param reverse Reverse or not
 194  *
 195  * @ingroup Animator
 196  */
 197 EAPI void elm_animator_auto_reverse_set(Elm_Animator* animator, Eina_Bool reverse)
 198 {
 199         if(!animator) return ;
 200         if( animator->auto_reverse == reverse ) return;
 201         animator->auto_reverse = reverse;
 202         if( reverse == EINA_TRUE )
 203                 animator->repeat_cnt = _animator_compute_reverse_repeat_count(animator->repeat_cnt);
 204         else
 205                 animator->repeat_cnt = _animator_compute_no_reverse_repeat_count(animator->repeat_cnt);
 206 }
 207
 208 /**
 209  * Set the animation acceleration style.
 210  *
 211  * @param animator Animator object
 212  * @param cs Curve style. Default is ELM_ANIMATOR_CURVE_LINEAR
 213  *
 214  * @ingroup Animator
 215  */
 216 EAPI void elm_animator_curve_style_set(Elm_Animator* animator, Elm_Animator_Curve_Style cs)
 217 {
 218         if(!animator) return;
 219
 220         switch(cs)
 221         {
 222                 case ELM_ANIMATOR_CURVE_LINEAR:
 223                         animator->curve_op = _animator_curve_linear;
 224                         break;
 225                 case ELM_ANIMATOR_CURVE_IN_OUT:
 226                         animator->curve_op = _animator_curve_in_out;
 227                         break;
 228                 case ELM_ANIMATOR_CURVE_IN:
 229                         animator->curve_op = _animator_curve_in;
 230                         break;
 231                 case ELM_ANIMATOR_CURVE_OUT:
 232                         animator->curve_op = _animator_curve_out;
 233                         break;
 234                 default:
 235                         animator->curve_op = _animator_curve_linear;
 236                         break;
 237         }
 238 }
 239
 240 /**
 241  * Set the operation duration.
 242  *
 243  * @param animator Animator object
 244  * @param duration Duration in second
 245  *
 246  * @ingroup Animator
 247  */
 248 EAPI void elm_animator_duration_set(Elm_Animator* animator, const double duration)
 249 {
 250         if(!animator) return;
 251         if(animator->on_animating == EINA_TRUE) return;
 252         animator->duration = duration;
 253 }
 254
 255 /**
 256  * Set the callback function for animator operation.
 257  *
 258  * @param animator Animator object
 259  * @param op Callback function pointer
 260  * @param data Callback function user argument
 261  *
 262  * @ingroup Animator
 263  */
 264 EAPI void elm_animator_operation_callback_set(Elm_Animator* animator, void (*op)(void*, Elm_Animator*, const double), void* data)
 265 {
 266         if(!animator) return;
 267         if(animator->on_animating == EINA_TRUE) return;
 268         animator->animator_op = op;
 269         animator->animator_arg = data;
 270 }
 271
 272 /**
 273  * Add new animator.
 274  *
 275  * @param parent Parent object
 276  * @return animator object
 277  *
 278  * @ingroup Animator
 279  */
 280 EAPI Elm_Animator* elm_animator_add(Evas_Object* parent)
 281 {
 282         if(!parent) return NULL;
 283         Elm_Animator* animator = calloc(1, sizeof(Elm_Animator));
 284         if(!animator) return NULL;
 285         animator->parent = parent;
 286         elm_animator_auto_reverse_set(animator, EINA_FALSE);
 287         elm_animator_curve_style_set(animator, ELM_ANIMATOR_CURVE_LINEAR);
 288         return animator;
 289 }
 290
 291 /**
 292  * Get the status for the animator operation.
 293  *
 294  * @param animator Animator object
 295  * @return EINA_TRUE is animator is operating.
 296  *
 297  * @ingroup Animator
 298  */
 299 EAPI Eina_Bool elm_animator_operating_get(Elm_Animator* animator)
 300 {
 301         if(!animator) return EINA_FALSE;
 302         return animator->on_animating;
 303 }
 304
 305 /**
 306  * Delete animator.
 307  *
 308  * @param animator Animator object
 309  *
 310  * @ingroup Animator
 311  */
 312 EAPI void elm_animator_del(Elm_Animator* animator)
 313 {
 314         if(!animator) return;
 315         _delete_animator(animator);
 316         free(animator);
 317 }
 318
 319 /**
 320  * Set the callback function for the animator end.
 321  *
 322  * @param  animator Animator object
 323  * @param  op Callback function pointer
 324  * @param  data Callback function user argument
 325  *
 326  * @ingroup Animator
 327  */
 328 EAPI void elm_animator_completion_callback_set(Elm_Animator* animator, void (*op)(void*), void* data)
 329 {
 330         if(!animator) return NULL;
 331         if(animator->on_animating == EINA_TRUE) return NULL;
 332         animator->completion_op = op;
 333         animator->completion_arg = data;
 334 }
 335
 336 /**
 337  * Stop animator.
 338  *
 339  * @param animator Animator object
 340  *
 341  * @ingroup Animator
 342  */
 343 EAPI void elm_animator_stop(Elm_Animator* animator)
 344 {
 345         if(!animator) return NULL;
 346         animator->on_animating = EINA_FALSE;
 347         _delete_animator(animator);
 348 }
 349
 350 /**
 351  * Set the animator repeat count.
 352  *
 353  * @param  animator Animator object
 354  * @param  repeat_cnt Repeat count
 355  *
 356  * @ingroup Animator
 357  */
 358 EAPI void elm_animator_repeat_set(Elm_Animator* animator, const unsigned int repeat_cnt)
 359 {
 360         if(!animator) return NULL;
 361         if( animator->auto_reverse == EINA_FALSE )
 362                 animator->repeat_cnt = repeat_cnt;
 363         else
 364                 animator->repeat_cnt = _animator_compute_reverse_repeat_count( repeat_cnt );
 365 }
 366
 367 /**
 368  * Animate now.
 369  *
 370  * @param animator Animator object
 371  *
 372  * @ingroup Animator
 373  */
 374 EAPI void elm_animator_animate(Elm_Animator* animator)
 375 {
 376         if(!animator) return NULL;
 377         if(!animator->animator_op) return NULL;
 378         //animator->begin_time = ecore_time_get();
 379         animator->begin_time = ecore_loop_time_get();
 380         animator->on_animating = EINA_TRUE;
 381         animator->cur_repeat_cnt = animator->repeat_cnt;
 382 //      _delete_animator(animator);
 383         animator->animator = ecore_animator_add( _animator_animate_cb, animator );
 384         if(!animator->animator) animator->on_animating = EINA_FALSE;
 385 }
 386
 387