1 #define EFL_CANVAS_GESTURE_RECOGNIZER_PROTECTED
2 #include "efl_canvas_gesture_private.h"
3 #define RAD2DEG(x) ((x) * 57.295779513)
4
5 #define MY_CLASS EFL_CANVAS_GESTURE_RECOGNIZER_CLASS
6 #include "efl_canvas_gesture_recognizer.eo.h"
7
8 Eina_Value *
_recognizer_config_get(const Eo * obj,const char * name)9 _recognizer_config_get(const Eo *obj, const char *name)
10 {
11 Eo *config = efl_provider_find(obj, EFL_CONFIG_INTERFACE);
12 EINA_SAFETY_ON_NULL_RETURN_VAL(config, NULL);
13 return efl_config_get(config, name);
14 }
15
16 EOLIAN static Eina_Bool
_efl_canvas_gesture_recognizer_continues_get(const Eo * obj EINA_UNUSED,Efl_Canvas_Gesture_Recognizer_Data * pd)17 _efl_canvas_gesture_recognizer_continues_get(const Eo *obj EINA_UNUSED, Efl_Canvas_Gesture_Recognizer_Data *pd)
18 {
19 return pd->continues;
20 }
21
22 EOLIAN static void
_efl_canvas_gesture_recognizer_continues_set(Eo * obj EINA_UNUSED,Efl_Canvas_Gesture_Recognizer_Data * pd,Eina_Bool value)23 _efl_canvas_gesture_recognizer_continues_set(Eo *obj EINA_UNUSED, Efl_Canvas_Gesture_Recognizer_Data *pd, Eina_Bool value)
24 {
25 pd->continues = !!value;
26 }
27
28 int
_direction_get(Evas_Coord xx1,Evas_Coord xx2)29 _direction_get(Evas_Coord xx1, Evas_Coord xx2)
30 {
31 if (xx2 < xx1) return -1;
32 if (xx2 > xx1) return 1;
33
34 return 0;
35 }
36
37 Eina_Bool
_event_multi_touch_get(const Efl_Canvas_Gesture_Touch * event)38 _event_multi_touch_get(const Efl_Canvas_Gesture_Touch *event)
39 {
40 return efl_gesture_touch_points_count_get(event) > 1;
41 }
42
43
44 double
_angle_get(Evas_Coord xx1,Evas_Coord yy1,Evas_Coord xx2,Evas_Coord yy2)45 _angle_get(Evas_Coord xx1, Evas_Coord yy1, Evas_Coord xx2, Evas_Coord yy2)
46 {
47 double a, xx, yy, rt = (-1);
48
49 xx = abs(xx2 - xx1);
50 yy = abs(yy2 - yy1);
51
52 if (((int)xx) && ((int)yy))
53 {
54 rt = a = RAD2DEG(atan(yy / xx));
55 if (xx1 < xx2)
56 {
57 if (yy1 < yy2) rt = 360 - a;
58 else rt = a;
59 }
60 else
61 {
62 if (yy1 < yy2) rt = 180 + a;
63 else rt = 180 - a;
64 }
65 }
66
67 if (rt < 0) /* Do this only if rt is not set */
68 {
69 if (((int)xx)) /* Horizontal line */
70 {
71 if (xx2 < xx1) rt = 180;
72 else rt = 0.0;
73 }
74 else /* Vertical line */
75 {
76 if (yy2 < yy1) rt = 90;
77 else rt = 270;
78 }
79 }
80
81 /* Now we want to change from:
82 * 90 0
83 * original circle 180 0 We want: 270 90
84 * 270 180
85 */
86 rt = 450 - rt;
87 if (rt >= 360) rt -= 360;
88
89 return rt;
90 }
91
92 Evas_Coord
_finger_gap_length_get(Evas_Coord xx1,Evas_Coord yy1,Evas_Coord xx2,Evas_Coord yy2,Evas_Coord * x,Evas_Coord * y)93 _finger_gap_length_get(Evas_Coord xx1,
94 Evas_Coord yy1,
95 Evas_Coord xx2,
96 Evas_Coord yy2,
97 Evas_Coord *x,
98 Evas_Coord *y)
99 {
100 double a, b, xx, yy, gap;
101 xx = abs(xx2 - xx1);
102 yy = abs(yy2 - yy1);
103 gap = sqrt((xx * xx) + (yy * yy));
104
105 /* START - Compute zoom center point */
106 /* The triangle defined as follows:
107 * B
108 * / |
109 * / |
110 * gap / | a
111 * / |
112 * A-----C
113 * b
114 * http://en.wikipedia.org/wiki/Trigonometric_functions
115 *************************************/
116 if (((int)xx) && ((int)yy))
117 {
118 double A = atan((yy / xx));
119 a = (Evas_Coord)((gap / 2) * sin(A));
120 b = (Evas_Coord)((gap / 2) * cos(A));
121 *x = (Evas_Coord)((xx2 > xx1) ? (xx1 + b) : (xx2 + b));
122 *y = (Evas_Coord)((yy2 > yy1) ? (yy1 + a) : (yy2 + a));
123 }
124 else
125 {
126 if ((int)xx) /* horiz line, take half width */
127 {
128 *x = (Evas_Coord)((xx1 + xx2) / 2);
129 *y = (Evas_Coord)(yy1);
130 }
131
132 if ((int)yy) /* vert line, take half width */
133 {
134 *x = (Evas_Coord)(xx1);
135 *y = (Evas_Coord)((yy1 + yy2) / 2);
136 }
137 }
138 /* END - Compute zoom center point */
139
140 return (Evas_Coord)gap;
141 }
142
143 #include "efl_canvas_gesture_recognizer.eo.c"
144