src/lib/elm_animator.c

   1 #include <Elementary.h>
   2
   3 /**
   4  * @addtogroup Animator Animator
   5  *
   6  * Support basic animation functions for Evas_Object
   7 */
   8 /*
   9 static const float _in_out_table[181] = {
  10 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,
  11 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,
  12 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,
  13 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,
  14 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,
  15 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,
  16 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,
  17 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,
  18 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,
  19 0.998888, 0.999228, 0.999506, 0.999722, 0.999877, 0.999969, 1 };
  20
  21
  22 static const float _in_table[181] = {
  23 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,
  24 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,
  25 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,
  26 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,
  27 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,
  28 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,
  29 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,
  30 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,
  31 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,
  32 0.65578, 0.671329, 0.68775, 0.705189, 0.723838, 0.743962, 0.76594, 0.790356, 0.818188, 0.851343, 0.894737, 1 };
  33
  34
  35 static const float _out_table[181] = {
  36 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,
  37 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,
  38 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,
  39 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,
  40 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,
  41 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,
  42 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,
  43 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,
  44 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 };
  45 */
  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         if(frame < 0.5)
  95                 return _animator_curve_out(frame * 2) * 0.5;
  96         else
  97                 return _animator_curve_in(frame * 2 - 1) * 0.5 + 0.5;
  98 }
  99
 100 static double
 101 _animator_curve_in(const double frame)
 102 {
 103         return sqrt(1 - pow(frame - 1, 2));
 104 }
 105
 106 static double
 107 _animator_curve_out(const double frame)
 108 {
 109         return 1 - sqrt(1 - pow(frame, 2));
 110 }
 111
 112 static void
 113 _delete_animator(Elm_Animator* animator)
 114 {
 115         if(animator->animator)
 116         {
 117                 ecore_animator_del(animator->animator);
 118                 animator->animator = NULL;
 119         }
 120 }
 121
 122 static int
 123 _animator_animate_cb(void* data)
 124 {
 125         Elm_Animator* animator = (Elm_Animator*) data;
 126         animator->cur_time = ecore_loop_time_get();
 127         double elapsed_time = animator->cur_time - animator->begin_time;
 128
 129         //TODO: HOW TO MAKE IT PRECIOUS TIME? -> Use Interpolation!!
 130         if( elapsed_time > animator->duration ) elapsed_time = animator->duration;
 131
 132         float frame = animator->curve_op(elapsed_time/animator->duration);
 133
 134         //Reverse?
 135         if(animator->auto_reverse == EINA_TRUE)
 136         {
 137                 if( animator->cur_repeat_cnt % 2 == 0 ) frame = 1 - frame;
 138         }
 139
 140         if(animator->duration > 0)
 141                 animator->animator_op(animator->animator_arg, animator, frame);
 142
 143         //Not end. Keep going.
 144         if(elapsed_time < animator->duration) return ECORE_CALLBACK_RENEW;
 145
 146         //Repeat and reverse and time done!
 147         if(animator->cur_repeat_cnt == 0)
 148         {
 149                 animator->on_animating = EINA_FALSE;
 150                 _delete_animator( animator );
 151                 if(animator->completion_op) animator->completion_op(animator->completion_arg);
 152                 return ECORE_CALLBACK_CANCEL;
 153         }
 154
 155         //Repeat Case
 156         --animator->cur_repeat_cnt;
 157         animator->begin_time = ecore_loop_time_get();
 158
 159         return ECORE_CALLBACK_RENEW;
 160 }
 161
 162 /**
 163  * Get the value of reverse mode.
 164  *
 165  * @param animator Animator object
 166  * @return EINA_TRUE is reverse mode
 167  *
 168  * @ingroup Animator
 169  */
 170 EAPI Eina_Bool elm_animator_auto_reverse_get(Elm_Animator* animator)
 171 {
 172         if(!animator) return EINA_FALSE;
 173         return animator->auto_reverse;
 174 }
 175
 176 /**
 177  * Get the value of repeat count.
 178  *
 179  * @param animator Animator object
 180  * @return Repeat count
 181  *
 182  * @ingroup Animator
 183  */
 184 EAPI unsigned int elm_animator_repeat_get(Elm_Animator* animator)
 185 {
 186         if(!animator) return EINA_FALSE;
 187         return animator->repeat_cnt;
 188 }
 189
 190 /**
 191  * Set auto reverse function.
 192  *
 193  * @param animator Animator object
 194  * @param reverse Reverse or not
 195  *
 196  * @ingroup Animator
 197  */
 198 EAPI void elm_animator_auto_reverse_set(Elm_Animator* animator, Eina_Bool reverse)
 199 {
 200         if(!animator) return ;
 201         if( animator->auto_reverse == reverse ) return;
 202         animator->auto_reverse = reverse;
 203         if( reverse == EINA_TRUE )
 204                 animator->repeat_cnt = _animator_compute_reverse_repeat_count(animator->repeat_cnt);
 205         else
 206                 animator->repeat_cnt = _animator_compute_no_reverse_repeat_count(animator->repeat_cnt);
 207 }
 208
 209 /**
 210  * Set the animation acceleration style.
 211  *
 212  * @param animator Animator object
 213  * @param cs Curve style. Default is ELM_ANIMATOR_CURVE_LINEAR
 214  *
 215  * @ingroup Animator
 216  */
 217 EAPI void elm_animator_curve_style_set(Elm_Animator* animator, Elm_Animator_Curve_Style cs)
 218 {
 219         if(!animator) return;
 220
 221         switch(cs)
 222         {
 223                 case ELM_ANIMATOR_CURVE_LINEAR:
 224                         animator->curve_op = _animator_curve_linear;
 225                         break;
 226                 case ELM_ANIMATOR_CURVE_IN_OUT:
 227                         animator->curve_op = _animator_curve_in_out;
 228                         break;
 229                 case ELM_ANIMATOR_CURVE_IN:
 230                         animator->curve_op = _animator_curve_in;
 231                         break;
 232                 case ELM_ANIMATOR_CURVE_OUT:
 233                         animator->curve_op = _animator_curve_out;
 234                         break;
 235                 default:
 236                         animator->curve_op = _animator_curve_linear;
 237                         break;
 238         }
 239 }
 240
 241 /**
 242  * Set the operation duration.
 243  *
 244  * @param animator Animator object
 245  * @param duration Duration in second
 246  *
 247  * @ingroup Animator
 248  */
 249 EAPI void elm_animator_duration_set(Elm_Animator* animator, const double duration)
 250 {
 251         if(!animator) return;
 252         if(animator->on_animating == EINA_TRUE) return;
 253         animator->duration = duration;
 254 }
 255
 256 /**
 257  * Set the callback function for animator operation.
 258  *
 259  * @param animator Animator object
 260  * @param op Callback function pointer
 261  * @param data Callback function user argument
 262  *
 263  * @ingroup Animator
 264  */
 265 EAPI void elm_animator_operation_callback_set(Elm_Animator* animator, void (*op)(void*, Elm_Animator*, const double), void* data)
 266 {
 267         if(!animator) return;
 268         if(animator->on_animating == EINA_TRUE) return;
 269         animator->animator_op = op;
 270         animator->animator_arg = data;
 271 }
 272
 273 /**
 274  * Add new animator.
 275  *
 276  * @param parent Parent object
 277  * @return animator object
 278  *
 279  * @ingroup Animator
 280  */
 281 EAPI Elm_Animator* elm_animator_add(Evas_Object* parent)
 282 {
 283         if(!parent) return NULL;
 284         Elm_Animator* animator = calloc(1, sizeof(Elm_Animator));
 285         if(!animator) return NULL;
 286         animator->parent = parent;
 287         elm_animator_auto_reverse_set(animator, EINA_FALSE);
 288         elm_animator_curve_style_set(animator, ELM_ANIMATOR_CURVE_LINEAR);
 289         return animator;
 290 }
 291
 292 /**
 293  * Get the status for the animator operation.
 294  *
 295  * @param animator Animator object
 296  * @return EINA_TRUE is animator is operating.
 297  *
 298  * @ingroup Animator
 299  */
 300 EAPI Eina_Bool elm_animator_operating_get(Elm_Animator* animator)
 301 {
 302         if(!animator) return EINA_FALSE;
 303         return animator->on_animating;
 304 }
 305
 306 /**
 307  * Delete animator.
 308  *
 309  * @param animator Animator object
 310  *
 311  * @ingroup Animator
 312  */
 313 EAPI void elm_animator_del(Elm_Animator* animator)
 314 {
 315         if(!animator) return;
 316         _delete_animator(animator);
 317         free(animator);
 318 }
 319
 320 /**
 321  * Set the callback function for the animator end.
 322  *
 323  * @param  animator Animator object
 324  * @param  op Callback function pointer
 325  * @param  data Callback function user argument
 326  *
 327  * @ingroup Animator
 328  */
 329 EAPI void elm_animator_completion_callback_set(Elm_Animator* animator, void (*op)(void*), void* data)
 330 {
 331         if(!animator) return NULL;
 332         if(animator->on_animating == EINA_TRUE) return NULL;
 333         animator->completion_op = op;
 334         animator->completion_arg = data;
 335 }
 336
 337 /**
 338  * Stop animator.
 339  *
 340  * @param animator Animator object
 341  *
 342  * @ingroup Animator
 343  */
 344 EAPI void elm_animator_stop(Elm_Animator* animator)
 345 {
 346         if(!animator) return NULL;
 347         animator->on_animating = EINA_FALSE;
 348         _delete_animator(animator);
 349 }
 350
 351 /**
 352  * Set the animator repeat count.
 353  *
 354  * @param  animator Animator object
 355  * @param  repeat_cnt Repeat count
 356  *
 357  * @ingroup Animator
 358  */
 359 EAPI void elm_animator_repeat_set(Elm_Animator* animator, const unsigned int repeat_cnt)
 360 {
 361         if(!animator) return NULL;
 362         if( animator->auto_reverse == EINA_FALSE )
 363                 animator->repeat_cnt = repeat_cnt;
 364         else
 365                 animator->repeat_cnt = _animator_compute_reverse_repeat_count( repeat_cnt );
 366 }
 367
 368 /**
 369  * Animate now.
 370  *
 371  * @param animator Animator object
 372  *
 373  * @ingroup Animator
 374  */
 375 EAPI void elm_animator_animate(Elm_Animator* animator)
 376 {
 377         if(!animator) return NULL;
 378         if(!animator->animator_op) return NULL;
 379         animator->begin_time = ecore_loop_time_get();
 380         animator->on_animating = EINA_TRUE;
 381         animator->cur_repeat_cnt = animator->repeat_cnt;
 382         if(!animator->animator)
 383                 animator->animator = ecore_animator_add( _animator_animate_cb, animator );
 384         if(!animator->animator) animator->on_animating = EINA_FALSE;
 385 }
 386
 387