1 /**
2  * @defgroup Elm_Gesture_Layer_Group Gesture Layer
3  * @ingroup Elementary
4  *
5  * @image html gesture_layer_inheritance_tree.png
6  * @image latex gesture_layer_inheritance_tree.eps
7  *
8  * Gesture Layer Usage:
9  *
10  * Use Gesture Layer to detect gestures.
11  * The advantage is that you don't have to implement
12  * gesture detection, just set callbacks of gesture state.
13  * By using gesture layer we make standard interface.
14  *
15  * In order to use Gesture Layer you start with @ref elm_gesture_layer_add
16  * with a parent object parameter.
17  * Next 'activate' gesture layer with a @ref elm_gesture_layer_attach
18  * call. Usually with same object as target (2nd parameter).
19  *
20  * Now you need to tell gesture layer what gestures you follow.
21  * This is done with @ref elm_gesture_layer_cb_set call.
22  * By setting the callback you actually saying to gesture layer:
23  * I would like to know when the gesture @ref Elm_Gesture_Type
24  * switches to state @ref Elm_Gesture_State.
25  *
26  * Next, you need to implement the actual action that follows the input
27  * in your callback.
28  *
29  * Note that if you like to stop being reported about a gesture, just set
30  * all callbacks referring this gesture to NULL.
31  * (again with @ref elm_gesture_layer_cb_set)
32  *
33  * The information reported by gesture layer to your callback is depending
34  * on @ref Elm_Gesture_Type :
35  * @ref Elm_Gesture_Taps_Info is the info reported for tap gestures:
36  * @ref ELM_GESTURE_N_TAPS, @ref ELM_GESTURE_N_LONG_TAPS,
37  * @ref ELM_GESTURE_N_DOUBLE_TAPS, @ref ELM_GESTURE_N_TRIPLE_TAPS.
38  *
39  * @ref Elm_Gesture_Momentum_Info is info reported for momentum gestures:
40  * @ref ELM_GESTURE_MOMENTUM.
41  *
42  * @ref Elm_Gesture_Line_Info is the info reported for line gestures:
43  * (this also contains @ref Elm_Gesture_Momentum_Info internal structure)
44  * @ref ELM_GESTURE_N_LINES, @ref ELM_GESTURE_N_FLICKS.
45  * Note that we consider a flick as a line-gesture that should be completed
46  * in flick-time-limit as defined in @ref Config.
47  *
48  * @ref Elm_Gesture_Zoom_Info is the info reported for @ref ELM_GESTURE_ZOOM gesture.
49  *
50  * @ref Elm_Gesture_Rotate_Info is the info reported for @ref ELM_GESTURE_ROTATE gesture.
51  *
52  *
53  * Gesture Layer Tweaks:
54  *
55  * Note that line, flick, gestures can start without the need to remove fingers from surface.
56  * When user fingers rests on same-spot gesture is ended and starts again when fingers moved.
57  *
58  * Setting glayer_continues_enable to false in @ref Config will change this behavior
59  * so gesture starts when user touches (a *DOWN event) touch-surface
60  * and ends when no fingers touches surface (a *UP event).
61  *
62  * Supported elm_object common APIs.
63  * @li @ref elm_object_disabled_set
64  * @li @ref elm_object_disabled_get
65  *
66  * @{
67  *
68  */
69 
70 #include "elm_gesture_layer_common.h"
71 #ifndef EFL_NOLEGACY_API_SUPPORT
72 #include "elm_gesture_layer_legacy.h"
73 #endif
74 /**
75  * @}
76  */
77