diff options
Diffstat (limited to 'common/src/vp-pinch-zoom.c')
| -rw-r--r-- | common/src/vp-pinch-zoom.c | 482 |
1 files changed, 482 insertions, 0 deletions
diff --git a/common/src/vp-pinch-zoom.c b/common/src/vp-pinch-zoom.c new file mode 100644 index 0000000..5de2660 --- /dev/null +++ b/common/src/vp-pinch-zoom.c @@ -0,0 +1,482 @@ +/* +* Copyright (c) 2000-2015 Samsung Electronics Co., Ltd All Rights Reserved +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +* +*/ + +#include "vp-pinch-zoom.h" + +static vp_pinch_event_s *__vp_gesture_create_event_obj(void *data, + Evas_Object * + object, int device) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + vp_pinch_event_s *ev = NULL; + ev = calloc(1, sizeof(vp_pinch_event_s)); + if (ev == NULL) { + VideoLogDebug("Cannot allocate event_t"); + return NULL; + } + + ev->object = object; + ev->device = device; + evas_object_geometry_get(object, &ev->x, &ev->y, &ev->w, &ev->h); + + gesture_d->s_event_elist = + eina_list_append(gesture_d->s_event_elist, ev); + return ev; +} + +static int __vp_gesture_destroy_event_obj(void *data, + vp_pinch_event_s *ev) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + ev->pinch_obj = NULL; + ev->pinch_dis = 0; + gesture_d->s_event_elist = + eina_list_remove(gesture_d->s_event_elist, ev); + VP_IF_DEL_TIMER(ev->hold_timer); + + VP_FREE(ev); + return 0; +} + +static vp_pinch_event_s *__vp_gesture_get_event_obj(void *data, + int device) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + Eina_List *l = NULL; + vp_pinch_event_s *ev = NULL; + + EINA_LIST_FOREACH(gesture_d->s_event_elist, l, ev) { + if (ev && ev->device == device) + break; + ev = NULL; + } + + return ev; +} + +static int __vp_gesture_get_distance(Evas_Coord x1, Evas_Coord y1, + Evas_Coord x2, Evas_Coord y2) +{ + int dis, dx, dy; + + dx = x1 - x2; + dy = y1 - y2; + + dis = (int)sqrt(dx * dx + dy * dy); + return dis; +} + +static Eina_Bool __vp_gesture_hold_timer_cb(void *data) +{ + vp_pinch_event_s *ev0 = (vp_pinch_event_s *)data; + VP_IF_DEL_TIMER(ev0->hold_timer); + return ECORE_CALLBACK_CANCEL; +} + +static int __vp_gesture_get_multi_device(void *data) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + Eina_List *l = NULL; + vp_pinch_event_s *ev = NULL; + + EINA_LIST_FOREACH(gesture_d->s_event_elist, l, ev) { + if (ev && ev->device != 0) + return ev->device; + } + return 0; +} + +static void __vp_gesture_mouse_down_event(void *data, Evas *e, + Evas_Object *evas_obj, + void *ei) +{ + Evas_Event_Mouse_Down *ev = (Evas_Event_Mouse_Down *)ei; + vp_pinch_event_s *ev0; + ev0 = __vp_gesture_get_event_obj(data, 0); + if (ev0) + return; + + ev0 = __vp_gesture_create_event_obj(data, evas_obj, 0); + if (!ev0) + return; + + ev0->hold_timer = NULL; + ev0->prev.x = ev->output.x; + ev0->prev.y = ev->output.y; +} + +static void __vp_gesture_multi_down_event(void *data, Evas *evas, + Evas_Object *obj, void *ei) +{ + vp_pinch_event_s *ev; + Evas_Event_Multi_Down *down = (Evas_Event_Multi_Down *)ei; + ev = __vp_gesture_get_event_obj(data, down->device); + if (ev) + return; + + ev = __vp_gesture_create_event_obj(data, obj, down->device); + if (!ev) + return; + + ev->hold_timer = NULL; + ev->prev.x = down->output.x; + ev->prev.y = down->output.y; +} + +static void __vp_gesture_mouse_up_event(void *data, Evas *e, + Evas_Object *obj, void *ei) +{ + int mdevice; + vp_pinch_event_s *ev0; + vp_pinch_event_s *ev = NULL; + + ev0 = __vp_gesture_get_event_obj(data, 0); + if (ev0 == NULL) { + VideoLogDebug("Cannot get event0"); + return; + } + + mdevice = __vp_gesture_get_multi_device(data); + if (mdevice == 0) { + } else { + ev = __vp_gesture_get_event_obj(data, mdevice); + if (ev == NULL) { + return; + } + + VP_IF_DEL_TIMER(ev->hold_timer); + ev->hold_timer = + ecore_timer_add(VP_PINCH_HOLD_TIME_DELAY, + __vp_gesture_hold_timer_cb, ev); + } + + __vp_gesture_destroy_event_obj(data, ev0); +} + +static void __vp_gesture_multi_up_event(void *data, Evas *evas, + Evas_Object *obj, void *ei) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + Evas_Event_Multi_Up *up = (Evas_Event_Multi_Up *)ei; + vp_pinch_event_s *ev0 = NULL; + vp_pinch_event_s *ev = NULL; + ev = __vp_gesture_get_event_obj(data, up->device); + if (ev == NULL) { + return; + } + + gesture_d->dis_old = 0; + gesture_d->pinch_dis_old = 0; + ev0 = __vp_gesture_get_event_obj(data, 0); + if (ev0) { + VP_IF_DEL_TIMER(ev0->hold_timer); + ev0->hold_timer = + ecore_timer_add(VP_PINCH_HOLD_TIME_DELAY, + __vp_gesture_hold_timer_cb, ev0); + } else { + /* up when device 0 is off */ + } + __vp_gesture_destroy_event_obj(data, ev); +} + +static void __vp_gesture_mouse_move_event(void *data, Evas *e, + Evas_Object *obj, void *ei) +{ + Evas_Event_Mouse_Move *ev = (Evas_Event_Mouse_Move *)ei; + vp_pinch_event_s *ev0; + ev0 = __vp_gesture_get_event_obj(data, 0); + if (ev0 == NULL) { + return; + } + ev0->prev.x = ev->cur.output.x; + ev0->prev.y = ev->cur.output.y; + + __vp_gesture_get_multi_device(data); +} + +static void __vp_gesture_zoom_out_job_cb(void *data) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + if (gesture_d->next_plan != VP_PINCH_PLAN_OUT) { + VideoLogWarning("State is wrong[plan:%d]!", gesture_d->next_plan); + VP_IF_DEL_JOB(gesture_d->pinch_job); + return; + } + + if (gesture_d->zoom_out_cb) + gesture_d->zoom_out_cb(gesture_d->gesture, + gesture_d->zoom_out_data); + + VP_IF_DEL_JOB(gesture_d->pinch_job); +} + +static void __vp_gesture_zoom_in_job_cb(void *data) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + if (gesture_d->next_plan != VP_PINCH_PLAN_IN) { + VideoLogWarning("State is wrong[plan:%d]!", gesture_d->next_plan); + VP_IF_DEL_JOB(gesture_d->pinch_job); + return; + } + + if (gesture_d->zoom_in_cb) + gesture_d->zoom_in_cb(gesture_d->gesture, + gesture_d->zoom_in_data); + + + VP_IF_DEL_JOB(gesture_d->pinch_job); +} + +static void __vp_gesture_multi_move_event(void *data, Evas *evas, + Evas_Object *obj, void *ei) +{ + vp_gesture_s *gesture_d = (vp_gesture_s *) data; + Evas_Event_Multi_Move *move = (Evas_Event_Multi_Move *)ei; + int dis_new; + vp_pinch_event_s *ev0; + vp_pinch_event_s *ev; + ev = __vp_gesture_get_event_obj(data, move->device); + if (ev == NULL) { + return; + } + ev->prev.x = move->cur.output.x; + ev->prev.y = move->cur.output.y; + + ev0 = __vp_gesture_get_event_obj(data, 0); + if (ev0 == NULL) { + return; + } + + dis_new = __vp_gesture_get_distance(ev0->prev.x, ev0->prev.y, + ev->prev.x, ev->prev.y); + + int dis_old = gesture_d->dis_old; + if (dis_old != 0) { + if (dis_old - dis_new > 0 + && ev->pinch_dis > VP_PINCH_TOUCH_HOLD_RANGE) { + if (gesture_d->pinch_dis_old + && ev->pinch_dis < + (gesture_d->pinch_dis_old * VP_PINCH_TOUCH_FACTOR)) { + ev->pinch_dis += (dis_old - dis_new); + gesture_d->dis_old = dis_new; + return; + } + + gesture_d->next_plan = VP_PINCH_PLAN_OUT; /* plan to zoom-out */ + if (!gesture_d->pinch_job) { + gesture_d->pinch_job = + ecore_job_add(__vp_gesture_zoom_out_job_cb, data); + } else { + VideoLogInfo("Added job pinch zoom out"); + } + + gesture_d->pinch_dis_old = ev->pinch_dis; + ev->pinch_dis = 0; + } else if (dis_old - dis_new < 0 + && ev->pinch_dis < -VP_PINCH_TOUCH_HOLD_RANGE) { + if (gesture_d->pinch_dis_old + && ev->pinch_dis > + (gesture_d->pinch_dis_old * VP_PINCH_TOUCH_FACTOR)) { + ev->pinch_dis += (dis_old - dis_new); + gesture_d->dis_old = dis_new; + return; + } + + gesture_d->next_plan = VP_PINCH_PLAN_IN; /* plan to zoom-in */ + if (!gesture_d->pinch_job) { + VideoLogInfo("Add job pinch zoom in"); + gesture_d->pinch_job = + ecore_job_add(__vp_gesture_zoom_in_job_cb, data); + } else { + VideoLogWarning("Added job pinch zoom in"); + } + + gesture_d->pinch_dis_old = ev->pinch_dis; + ev->pinch_dis = 0; + } + ev->pinch_dis += (dis_old - dis_new); + } + VideoLogInfo("dis_new: %d, dis_old: %d, pinch_dis %d", dis_new, + dis_old, ev->pinch_dis); + + /* Reset dis_old value */ + gesture_d->dis_old = dis_new; +} + +static void __vp_gesture_del_cb(void *data, Evas *e, Evas_Object *obj, + void *ei) +{ + VideoLogWarning("Delete gesture ---"); + if (data) { + vp_gesture_s *gesture_d = (vp_gesture_s *)data; + VP_IF_DEL_JOB(gesture_d->pinch_job); + evas_object_data_del(gesture_d->gesture, VP_GESTURE_KEY_DATA); + VP_FREE(gesture_d); + } + VideoLogWarning("Delete gesture +++"); +} + +Evas_Object *_vp_gesture_add(void *data, Evas_Object *parent) +{ + if (data == NULL || parent == NULL) { + VideoLogInfo("Error input parameters"); + return NULL; + } + + Evas_Object *gesture = NULL; + + gesture = evas_object_rectangle_add(evas_object_evas_get(parent)); + evas_object_color_set(gesture, 0, 0, 0, 0); + + vp_gesture_s *gesture_d = + (vp_gesture_s *)calloc(1, sizeof(vp_gesture_s)); + if (gesture_d == NULL) { + evas_object_del(gesture); + return NULL; + } + + gesture_d->ad = data; + gesture_d->parent = parent; + gesture_d->gesture = gesture; + + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MOUSE_DOWN, + __vp_gesture_mouse_down_event, + gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MOUSE_UP, + __vp_gesture_mouse_up_event, + gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MOUSE_MOVE, + __vp_gesture_mouse_move_event, + gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MULTI_DOWN, + __vp_gesture_multi_down_event, + gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MULTI_UP, + __vp_gesture_multi_up_event, + gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_MULTI_MOVE, + __vp_gesture_multi_move_event, + gesture_d); + + evas_object_data_set(gesture, VP_GESTURE_KEY_DATA, + (void *)gesture_d); + evas_object_event_callback_add(gesture, EVAS_CALLBACK_DEL, + __vp_gesture_del_cb, gesture_d); + return gesture; +} + +int _vp_gesture_set_zoom_in_cb(Evas_Object *gesture, vp_gesture_cb cb, + void *data) +{ + if (gesture == NULL || data == NULL) { + VideoLogInfo("Event Object is NULL"); + return 0; + } + + vp_gesture_s *gesture_d = NULL; + + gesture_d = + (vp_gesture_s *)evas_object_data_get(gesture, + VP_GESTURE_KEY_DATA); + if (gesture_d) { + gesture_d->zoom_in_cb = cb; + gesture_d->zoom_in_data = data; + } + return 0; +} + +int _vp_gesture_set_zoom_out_cb(Evas_Object *gesture, vp_gesture_cb cb, + void *data) +{ + if (gesture == NULL || data == NULL) { + VideoLogInfo("Event Object is NULL"); + return 0; + } + + vp_gesture_s *gesture_d = NULL; + + gesture_d = + (vp_gesture_s *)evas_object_data_get(gesture, + VP_GESTURE_KEY_DATA); + + if (gesture_d != NULL) { + gesture_d->zoom_out_cb = cb; + gesture_d->zoom_out_data = data; + } + + return 0; +} + +Eina_Bool __vp_pinch_zoom_out_cb(Evas_Object *gesture, void *data) +{ + if (gesture == NULL || data == NULL) { + VideoLogInfo("Event Object is NULL"); + return EINA_FALSE; + } + + st_VideoListViewMainViewWidget *ad = + (st_VideoListViewMainViewWidget *)data; + VideoLogInfo("%d", ad->zoom_level); + if (ad->zoom_level > VP_ZOOM_IN_DEFAULT) { + ad->zoom_level--; + if (_grid_view_zoom_out(data, NULL) == 0) + ad->zoom_level = VP_ZOOM_IN_DEFAULT; + } + + return ECORE_CALLBACK_CANCEL; +} + +Eina_Bool __vp_pinch_zoom_in_cb(Evas_Object *gesture, void *data) +{ + if (gesture == NULL || data == NULL) { + VideoLogInfo("Event Object is NULL"); + return EINA_FALSE; + } + + st_VideoListViewMainViewWidget *ad = + (st_VideoListViewMainViewWidget *) data; + + if ((ad->zoom_level >= VP_ZOOM_IN_DEFAULT) && + (ad->zoom_level < VP_ZOOM_IN_MAX)) { + ad->zoom_level++; + if (_grid_view_zoom_in(data, NULL) == 0) + ad->zoom_level = VP_ZOOM_IN_MAX; + } + + return ECORE_CALLBACK_CANCEL; +} + +int _vp_pinch_add_event(void *data, Evas_Object *layout) +{ + if (data == NULL || layout == NULL) { + VideoLogError("Error input parameters"); + return 0; + } + + st_VideoListViewMainViewWidget *ad = + (st_VideoListViewMainViewWidget *)data; + + /* Set initialize level */ + ad->zoom_level = VP_ZOOM_IN_DEFAULT; + + Evas_Object *gesture = _vp_gesture_add(data, layout); + _vp_gesture_set_zoom_in_cb(gesture, __vp_pinch_zoom_in_cb, data); + _vp_gesture_set_zoom_out_cb(gesture, __vp_pinch_zoom_out_cb, data); + elm_object_part_content_set(layout, "gesture", gesture); + ad->gesture = gesture; + return 0; +} |