summaryrefslogtreecommitdiff
path: root/src/bin/efx/efx_zoom.c
blob: 87b6a0e7e36992f490523929cc4bb33b43013d74 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
#include "e_efx_private.h"

typedef struct E_Efx_Zoom_Data
{
   E_EFX *e;
   Ecore_Animator *anim;
   E_Efx_Effect_Speed speed;
   double ending_zoom;
   double starting_zoom;
   E_Efx_End_Cb cb;
   void *data;
} E_Efx_Zoom_Data;

static void
_obj_del(E_Efx_Zoom_Data *ezd, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   if (ezd->anim) ecore_animator_del(ezd->anim);
   ezd->e->zoom_data = NULL;
   if ((!ezd->e->owner) && (!ezd->e->followers)) e_efx_free(ezd->e);
   free(ezd);
}

static void
_zoom_center_calc(E_EFX *e, Evas_Object *obj, Evas_Coord *x, Evas_Coord *y)
{
   Evas_Coord w, h;
   if (e->map_data.zoom_center)
     {
        *x = e->map_data.zoom_center->x;
        *y = e->map_data.zoom_center->y;
     }
   else
     {
        evas_object_geometry_get(obj, x, y, &w, &h);
        *x += (w / 2);
        *y += (h / 2);
     }
}

static void
_zoom(E_EFX *e, Evas_Object *obj, double zoom)
{
   Evas_Map *map;
   Evas_Coord x, y;

   map = e_efx_map_new(obj);
   _zoom_center_calc(e, e->obj, &x, &y);
   //DBG("ZOOM %p: %g: %d,%d", obj, zoom, x, y);
   evas_map_util_zoom(map, zoom, zoom, x, y);
   e_efx_maps_apply(e, obj, map, E_EFX_MAPS_APPLY_ROTATE_SPIN);
   e_efx_map_set(obj, map);
}

static Eina_Bool
_zoom_cb(E_Efx_Zoom_Data *ezd, double pos)
{
   double zoom;
   Eina_List *l;
   E_EFX *e;

   zoom = ecore_animator_pos_map(pos, (Ecore_Pos_Map)ezd->speed, 0, 0);
   ezd->e->map_data.zoom = (zoom * (ezd->ending_zoom - ezd->starting_zoom)) + ezd->starting_zoom;
   //DBG("total: %g || zoom (pos %g): %g || endzoom: %g || startzoom: %g", ezd->e->map_data.zoom, zoom, pos, ezd->ending_zoom, ezd->starting_zoom);
   e_efx_maps_apply(ezd->e, ezd->e->obj, NULL, E_EFX_MAPS_APPLY_ALL);
   EINA_LIST_FOREACH(ezd->e->followers, l, e)
     e_efx_maps_apply(e, e->obj, NULL, E_EFX_MAPS_APPLY_ALL);

   if (pos < 1.0) return EINA_TRUE;

   ezd->anim = NULL;
   E_EFX_QUEUE_CHECK(ezd);
   return EINA_TRUE;
}

static void
_zoom_stop(Evas_Object *obj, Eina_Bool reset)
{
   E_EFX *e;
   E_Efx_Zoom_Data *ezd;

   e = evas_object_data_get(obj, "e_efx-data");
   if ((!e) || (!e->zoom_data)) return;
   ezd = e->zoom_data;
   if (reset)
     {
        ezd->starting_zoom = 0.0;
        _zoom(e, obj, 1.0);
        evas_object_event_callback_del_full(obj, EVAS_CALLBACK_FREE, (Evas_Object_Event_Cb)_obj_del, ezd);
        if (e_efx_queue_complete(ezd->e, ezd))
          e_efx_queue_process(ezd->e);
        _obj_del(ezd, NULL, NULL, NULL);
        INF("reset zooming object %p", obj);
     }
   else
     {
        ecore_animator_del(ezd->anim);
        ezd->anim = NULL;
        INF("stopped zooming object %p", obj);
        if (e_efx_queue_complete(ezd->e, ezd))
          e_efx_queue_process(ezd->e);
     }
}

void
_e_efx_zoom_calc(void *data, void *owner, Evas_Object *obj, Evas_Map *map)
{
   E_Efx_Zoom_Data *ezd = data;
   E_Efx_Zoom_Data *ezd2 = owner;
   Evas_Coord x, y;
   double zoom;
   if ((ezd2 && (ezd2->e->map_data.zoom <= 0)) || (ezd && (ezd->e->map_data.zoom <= 0))) return;
   _zoom_center_calc(ezd2 ? ezd2->e : ezd->e, ezd2 ? ezd2->e->obj : obj, &x, &y);
   zoom = ezd ? ezd->e->map_data.zoom : 0;
   if (ezd2) zoom += ezd2->e->map_data.zoom;
   //DBG("zoom: %g @ (%d,%d)", zoom, x, y);
   evas_map_util_zoom(map, zoom, zoom, x, y);
}

EAPI Eina_Bool
e_efx_zoom(Evas_Object *obj, E_Efx_Effect_Speed speed, double starting_zoom, double ending_zoom, const Evas_Point *zoom_point, double total_time, E_Efx_End_Cb cb, const void *data)
{
   E_EFX *e;
   E_Efx_Zoom_Data *ezd;

   EINA_SAFETY_ON_NULL_RETURN_VAL(obj, EINA_FALSE);
   if (ending_zoom <= 0.0) return EINA_FALSE;
   if (starting_zoom < 0.0) return EINA_FALSE;
   if (total_time < 0.0) return EINA_FALSE;
   if (speed > E_EFX_EFFECT_SPEED_SINUSOIDAL) return EINA_FALSE;

   e = evas_object_data_get(obj, "e_efx-data");
   if (!e) e = e_efx_new(obj);
   EINA_SAFETY_ON_NULL_RETURN_VAL(e, EINA_FALSE);
   if (!e_efx_zoom_center_init(e, zoom_point)) return EINA_FALSE;
   INF("zoom: %p - %g%%->%g%% over %gs: %s", obj,
     ((!eina_dbl_exact(starting_zoom, 0)) ? starting_zoom : e->map_data.zoom) * 100.0,
     ending_zoom * 100.0, total_time, e_efx_speed_str[speed]);
   if (!e->zoom_data)
     {
        e->zoom_data = calloc(1, sizeof(E_Efx_Zoom_Data));
        EINA_SAFETY_ON_NULL_RETURN_VAL(e->zoom_data, EINA_FALSE);
        evas_object_event_callback_add(obj, EVAS_CALLBACK_FREE, (Evas_Object_Event_Cb)_obj_del, e->zoom_data);
     }
   ezd = e->zoom_data;
   ezd->e = e;
   ezd->speed = speed;
   ezd->ending_zoom = ending_zoom;
   ezd->starting_zoom = (!eina_dbl_exact(starting_zoom, 0)) ? starting_zoom : ezd->e->map_data.zoom;
   ezd->cb = cb;
   ezd->data = (void*)data;
   if (!eina_dbl_exact(total_time, 0))
     {
        _zoom_cb(ezd, 1.0);
        return EINA_TRUE;
     }
   if (!eina_dbl_exact(ezd->starting_zoom, 0)) ezd->starting_zoom = 1.0;
   _zoom_cb(ezd, 0);
   if (ezd->anim) ecore_animator_del(ezd->anim);
   ezd->anim = ecore_animator_timeline_add(total_time, (Ecore_Timeline_Cb)_zoom_cb, ezd);
   return EINA_TRUE;
}

EAPI void
e_efx_zoom_reset(Evas_Object *obj)
{
   _zoom_stop(obj, EINA_TRUE);
}

EAPI void
e_efx_zoom_stop(Evas_Object *obj)
{
   _zoom_stop(obj, EINA_FALSE);
}