efl

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#ifdef HAVE_CONFIG_H
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# include "elementary_config.h"
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#endif
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#include <Elementary.h>
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typedef struct _App_Data
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{
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   Efl_Canvas_Animation        *show_anim;
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   Efl_Canvas_Animation        *hide_anim;
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   Elm_Button                  *button;
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   Evas_Object          *pause_btn;
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   Eina_Bool             is_btn_visible;
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   Eina_Bool             is_anim_paused;
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} App_Data;
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static void
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_anim_changed_cb(void *data, const Efl_Event *event EINA_UNUSED)
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{
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   Eo *anim = event->info;
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   App_Data *ad = data;
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   if (anim)
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     {
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        printf("Animation has been started!\n");
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        elm_object_disabled_set(ad->pause_btn, EINA_FALSE);
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     }
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   else
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     {
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        printf("Animation has been ended!\n");
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        elm_object_disabled_set(ad->pause_btn, EINA_TRUE);
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     }
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}
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static void
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_anim_running_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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   double *progress = event->info;
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   printf("Animation is running! Current progress(%lf)\n", *progress);
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}
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EFL_CALLBACKS_ARRAY_DEFINE(animation_stats_cb,
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  {EFL_CANVAS_OBJECT_ANIMATION_EVENT_ANIMATION_CHANGED, _anim_changed_cb },
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  {EFL_CANVAS_OBJECT_ANIMATION_EVENT_ANIMATION_PROGRESS_UPDATED, _anim_running_cb },
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)
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static void
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_start_btn_clicked_cb(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
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{
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   App_Data *ad = data;
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   ad->is_btn_visible = !(ad->is_btn_visible);
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   if (ad->is_btn_visible)
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     {
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        //Create Animation Object from Animation
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        efl_canvas_object_animation_start(ad->button, ad->show_anim, 1.0, 0.0);
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        efl_text_set(obj, "Start Alpha Animation from 1.0 to 0.0");
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     }
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   else
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     {
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        //Create Animation Object from Animation
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        efl_canvas_object_animation_start(ad->button, ad->hide_anim, 1.0, 0.0);
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        efl_text_set(obj, "Start Alpha Animation from 0.0 to 1.0");
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     }
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}
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static void
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_pause_btn_clicked_cb(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
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{
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   App_Data *ad = data;
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   ad->is_anim_paused = !(ad->is_anim_paused);
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   if (ad->is_anim_paused)
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     {
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        //Pause animation
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        efl_canvas_object_animation_pause_set(ad->button, EINA_TRUE);
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        elm_object_text_set(obj, "Resume Animation");
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     }
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   else
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     {
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        //Resume animation
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        efl_canvas_object_animation_pause_set(ad->button, EINA_FALSE);
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        elm_object_text_set(obj, "Pause Animation");
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     }
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}
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static void
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_win_del_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
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{
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   App_Data *ad = data;
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   free(ad);
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}
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void
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test_efl_anim_pause(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
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{
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   App_Data *ad = calloc(1, sizeof(App_Data));
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   if (!ad) return;
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   Evas_Object *win = elm_win_add(NULL, "Efl Animation Pause", ELM_WIN_BASIC);
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   elm_win_title_set(win, "Efl Animation Pause");
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   elm_win_autodel_set(win, EINA_TRUE);
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   evas_object_smart_callback_add(win, "delete,request", _win_del_cb, ad);
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   //Button to be animated
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   Evas_Object *btn = elm_button_add(win);
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   elm_object_text_set(btn, "Button");
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   evas_object_size_hint_weight_set(btn, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
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   evas_object_resize(btn, 200, 200);
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   evas_object_move(btn, 100, 50);
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   evas_object_show(btn);
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   efl_event_callback_array_add(btn, animation_stats_cb(), ad);
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   //Show Animation
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   Efl_Canvas_Animation *show_anim = efl_add(EFL_CANVAS_ALPHA_ANIMATION_CLASS, win);
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   efl_animation_alpha_set(show_anim, 0.0, 1.0);
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   efl_animation_duration_set(show_anim, 2.0);
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   efl_animation_final_state_keep_set(show_anim, EINA_TRUE);
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   //Hide Animation
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   Efl_Canvas_Animation *hide_anim = efl_add(EFL_CANVAS_ALPHA_ANIMATION_CLASS, win);
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   efl_animation_alpha_set(hide_anim, 1.0, 0.0);
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   efl_animation_duration_set(hide_anim, 2.0);
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   efl_animation_final_state_keep_set(hide_anim, EINA_TRUE);
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   //Button to start animation
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   Evas_Object *start_btn = elm_button_add(win);
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   elm_object_text_set(start_btn, "Start Alpha Animation from 1.0 to 0.0");
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   evas_object_smart_callback_add(start_btn, "clicked", _start_btn_clicked_cb, ad);
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   evas_object_size_hint_weight_set(start_btn, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
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   evas_object_resize(start_btn, 200, 50);
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   evas_object_move(start_btn, 100, 300);
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   evas_object_show(start_btn);
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   //Button to pause animation
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   Evas_Object *pause_btn = elm_button_add(win);
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   elm_object_text_set(pause_btn, "Pause Animation");
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   evas_object_smart_callback_add(pause_btn, "clicked", _pause_btn_clicked_cb, ad);
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   evas_object_size_hint_weight_set(pause_btn, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
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   evas_object_resize(pause_btn, 200, 50);
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   evas_object_move(pause_btn, 100, 350);
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   evas_object_show(pause_btn);
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   //Pause button becomes enabled only if the animation is started
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   elm_object_disabled_set(pause_btn, EINA_TRUE);
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   //Initialize App Data
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   ad->show_anim = show_anim;
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   ad->hide_anim = hide_anim;
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   ad->button = btn;
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   ad->pause_btn = pause_btn;
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   ad->is_btn_visible = EINA_TRUE;
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   ad->is_anim_paused = EINA_FALSE;
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   evas_object_resize(win, 400, 450);
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   evas_object_show(win);
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}
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