1 #include <Elementary.h>
4 * @addtogroup Animator Animator
7 * Support normalized frame value for animation.
13 Ecore_Animator *animator;
17 unsigned int repeat_cnt;
18 unsigned int cur_repeat_cnt;
19 double (*curve_op) (double frame);
20 void (*animator_op) (void *data, Elm_Animator *animator, double frame);
22 void (*completion_op) (void *data);
24 Eina_Bool auto_reverse:1;
25 Eina_Bool on_animating:1;
28 static double _animator_curve_linear(double frame);
29 static double _animator_curve_in_out(double frame);
30 static double _animator_curve_in(double frame);
31 static double _animator_curve_out(double frame);
32 static unsigned int _animator_compute_reverse_repeat_count(unsigned int cnt);
33 static unsigned int _animator_compute_no_reverse_repeat_count(unsigned int cnt);
34 static int _animator_animate_cb(void *data);
35 static void _delete_animator(Elm_Animator *animator);
36 static void _animator_parent_del(void *data);
39 _animator_compute_reverse_repeat_count(unsigned int cnt)
41 return ((cnt + 1) * 2) - 1;
45 _animator_compute_no_reverse_repeat_count(unsigned int cnt)
51 _animator_curve_linear(double frame)
57 _animator_curve_in_out(double frame)
60 return _animator_curve_out(frame * 2) * 0.5;
62 return (_animator_curve_in(frame * 2 - 1) * 0.5) + 0.5;
66 _animator_curve_in(double frame)
68 return sqrt(1 - pow(frame - 1, 2));
72 _animator_curve_out(double frame)
74 return 1 - sqrt(1 - pow(frame, 2));
78 _delete_animator(Elm_Animator *animator)
80 if (animator->animator)
82 ecore_animator_del(animator->animator);
83 animator->animator = NULL;
88 _animator_animate_cb(void *data)
90 Elm_Animator *animator = (Elm_Animator *) data;
92 animator->cur_time = ecore_loop_time_get();
93 double elapsed_time = animator->cur_time - animator->begin_time;
95 if (elapsed_time > animator->duration)
96 elapsed_time = animator->duration;
98 double frame = animator->curve_op(elapsed_time / animator->duration);
101 if (animator->auto_reverse)
103 if ((animator->cur_repeat_cnt % 2) == 0)
107 if (animator->duration > 0)
108 animator->animator_op(animator->animator_arg, animator, frame);
110 //Not end. Keep going.
111 if (elapsed_time < animator->duration)
112 return ECORE_CALLBACK_RENEW;
114 //Repeat and reverse and time done!
115 if (animator->cur_repeat_cnt == 0)
117 animator->on_animating = EINA_FALSE;
118 _delete_animator(animator);
119 if (animator->completion_op)
120 animator->completion_op(animator->completion_arg);
121 return ECORE_CALLBACK_CANCEL;
125 --animator->cur_repeat_cnt;
126 animator->begin_time = ecore_loop_time_get();
128 return ECORE_CALLBACK_RENEW;
132 _animator_parent_del(void *data)
134 elm_animator_del(data);
138 * Get the value of reverse mode.
140 * @param animator Animator object
141 * @return EINA_TRUE is reverse mode
146 elm_animator_auto_reverse_get(Elm_Animator *animator)
150 return animator->auto_reverse;
154 * Get the value of repeat count.
156 * @param animator Animator object
157 * @return Repeat count
162 elm_animator_repeat_get(Elm_Animator *animator)
166 return animator->repeat_cnt;
170 * Set auto reverse function.
172 * @param animator Animator object
173 * @param reverse Reverse or not
178 elm_animator_auto_reverse_set(Elm_Animator *animator, Eina_Bool reverse)
182 if (animator->auto_reverse == reverse)
184 animator->auto_reverse = reverse;
186 animator->repeat_cnt =
187 _animator_compute_reverse_repeat_count(animator->repeat_cnt);
189 animator->repeat_cnt =
190 _animator_compute_no_reverse_repeat_count(animator->repeat_cnt);
194 * Set the animation acceleration style.
196 * @param animator Animator object
197 * @param cs Curve style. Default is ELM_ANIMATOR_CURVE_LINEAR
202 elm_animator_curve_style_set(Elm_Animator *animator,
203 Elm_Animator_Curve_Style cs)
210 case ELM_ANIMATOR_CURVE_LINEAR:
211 animator->curve_op = _animator_curve_linear;
213 case ELM_ANIMATOR_CURVE_IN_OUT:
214 animator->curve_op = _animator_curve_in_out;
216 case ELM_ANIMATOR_CURVE_IN:
217 animator->curve_op = _animator_curve_in;
219 case ELM_ANIMATOR_CURVE_OUT:
220 animator->curve_op = _animator_curve_out;
223 animator->curve_op = _animator_curve_linear;
229 * Set the operation duration.
231 * @param animator Animator object
232 * @param duration Duration in second
237 elm_animator_duration_set(Elm_Animator *animator, double duration)
241 if (animator->on_animating)
243 animator->duration = duration;
247 * Set the callback function for animator operation.
248 * The range of callback function frame data is to 0 ~ 1
249 * User can refer this frame value for one's animation frame data.
250 * @param animator Animator object
251 * @param op Callback function pointer
252 * @param data Callback function user argument
257 elm_animator_operation_callback_set(Elm_Animator *animator,
258 void (*func) (void *data,
259 Elm_Animator *animator,
260 double frame), void *data)
264 if (animator->on_animating)
266 animator->animator_op = func;
267 animator->animator_arg = data;
273 * @param parent Parent object
274 * @return animator object
279 elm_animator_add(Evas_Object *parent)
281 Elm_Animator *animator = calloc(1, sizeof(Elm_Animator));
285 elm_animator_auto_reverse_set(animator, EINA_FALSE);
286 elm_animator_curve_style_set(animator, ELM_ANIMATOR_CURVE_LINEAR);
289 evas_object_event_callback_add(parent, EVAS_CALLBACK_DEL,
290 _animator_parent_del, animator);
292 animator->parent = parent;
298 * Get the status for the animator operation.
300 * @param animator Animator object
301 * @return EINA_TRUE is animator is operating.
306 elm_animator_operating_get(Elm_Animator *animator)
310 return animator->on_animating;
316 * @param animator Animator object
321 elm_animator_del(Elm_Animator *animator)
325 _delete_animator(animator);
328 evas_object_event_callback_del(animator->parent, EVAS_CALLBACK_DEL, _animator_parent_del);
333 * Set the callback function for the animator end.
335 * @param animator Animator object
336 * @param op Callback function pointer
337 * @param data Callback function user argument
342 elm_animator_completion_callback_set(Elm_Animator *animator,
343 void (*func) (void *data), void *data)
347 if (animator->on_animating)
349 animator->completion_op = func;
350 animator->completion_arg = data;
356 * @param animator Animator object
361 elm_animator_stop(Elm_Animator *animator)
365 animator->on_animating = EINA_FALSE;
366 _delete_animator(animator);
370 * Set the animator repeat count.
372 * @param animator Animator object
373 * @param repeat_cnt Repeat count
378 elm_animator_repeat_set(Elm_Animator *animator, unsigned int repeat_cnt)
382 if (!animator->auto_reverse)
383 animator->repeat_cnt = repeat_cnt;
385 animator->repeat_cnt = _animator_compute_reverse_repeat_count(repeat_cnt);
391 * @param animator Animator object
396 elm_animator_animate(Elm_Animator *animator)
400 if (!animator->animator_op)
402 animator->begin_time = ecore_loop_time_get();
403 animator->on_animating = EINA_TRUE;
404 animator->cur_repeat_cnt = animator->repeat_cnt;
405 if (!animator->animator)
406 animator->animator = ecore_animator_add(_animator_animate_cb, animator);
407 if (!animator->animator)
408 animator->on_animating = EINA_FALSE;