1 /**
2 * @file lv_tileview.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9 #include "lv_tileview_private.h"
10 #include "../../core/lv_obj_class_private.h"
11 #include "../../indev/lv_indev.h"
12 #include "../../indev/lv_indev_private.h"
13 #if LV_USE_TILEVIEW
14
15 /*********************
16 * DEFINES
17 *********************/
18
19 /**********************
20 * TYPEDEFS
21 **********************/
22
23 /**********************
24 * STATIC PROTOTYPES
25 **********************/
26 static void lv_tileview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
27 static void lv_tileview_tile_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
28 static void tileview_event_cb(lv_event_t * e);
29
30 /**********************
31 * STATIC VARIABLES
32 **********************/
33
34 const lv_obj_class_t lv_tileview_class = {
35 .constructor_cb = lv_tileview_constructor,
36 .base_class = &lv_obj_class,
37 .instance_size = sizeof(lv_tileview_t),
38 .name = "tileview",
39 };
40
41 const lv_obj_class_t lv_tileview_tile_class = {
42 .constructor_cb = lv_tileview_tile_constructor,
43 .base_class = &lv_obj_class,
44 .instance_size = sizeof(lv_tileview_tile_t),
45 .name = "tile",
46 };
47
48 /**********************
49 * MACROS
50 **********************/
51
52 /**********************
53 * GLOBAL FUNCTIONS
54 **********************/
55
lv_tileview_create(lv_obj_t * parent)56 lv_obj_t * lv_tileview_create(lv_obj_t * parent)
57 {
58 LV_LOG_INFO("begin");
59 lv_obj_t * obj = lv_obj_class_create_obj(&lv_tileview_class, parent);
60 lv_obj_class_init_obj(obj);
61 return obj;
62 }
63
64 /*======================
65 * Add/remove functions
66 *=====================*/
67
lv_tileview_add_tile(lv_obj_t * tv,uint8_t col_id,uint8_t row_id,lv_dir_t dir)68 lv_obj_t * lv_tileview_add_tile(lv_obj_t * tv, uint8_t col_id, uint8_t row_id, lv_dir_t dir)
69 {
70 LV_LOG_INFO("begin");
71
72 lv_obj_t * obj = lv_obj_class_create_obj(&lv_tileview_tile_class, tv);
73 lv_obj_class_init_obj(obj);
74 lv_obj_set_pos(obj, lv_pct(col_id * 100), lv_pct(row_id * 100));
75
76 lv_tileview_tile_t * tile = (lv_tileview_tile_t *)obj;
77 tile->dir = dir;
78
79 if(col_id == 0 && row_id == 0) {
80 lv_obj_set_scroll_dir(tv, dir);
81 }
82 return obj;
83 }
84
lv_tileview_set_tile(lv_obj_t * obj,lv_obj_t * tile_obj,lv_anim_enable_t anim_en)85 void lv_tileview_set_tile(lv_obj_t * obj, lv_obj_t * tile_obj, lv_anim_enable_t anim_en)
86 {
87 int32_t tx = lv_obj_get_x(tile_obj);
88 int32_t ty = lv_obj_get_y(tile_obj);
89
90 lv_tileview_tile_t * tile = (lv_tileview_tile_t *)tile_obj;
91 lv_tileview_t * tv = (lv_tileview_t *) obj;
92 tv->tile_act = (lv_obj_t *)tile;
93
94 lv_obj_set_scroll_dir(obj, tile->dir);
95 lv_obj_scroll_to(obj, tx, ty, anim_en);
96 }
97
lv_tileview_set_tile_by_index(lv_obj_t * tv,uint32_t col_id,uint32_t row_id,lv_anim_enable_t anim_en)98 void lv_tileview_set_tile_by_index(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en)
99 {
100 lv_obj_update_layout(tv);
101
102 int32_t w = lv_obj_get_content_width(tv);
103 int32_t h = lv_obj_get_content_height(tv);
104
105 int32_t tx = col_id * w;
106 int32_t ty = row_id * h;
107
108 uint32_t i;
109 for(i = 0; i < lv_obj_get_child_count(tv); i++) {
110 lv_obj_t * tile_obj = lv_obj_get_child(tv, i);
111 int32_t x = lv_obj_get_x(tile_obj);
112 int32_t y = lv_obj_get_y(tile_obj);
113 if(x == tx && y == ty) {
114 lv_tileview_set_tile(tv, tile_obj, anim_en);
115 return;
116 }
117 }
118
119 LV_LOG_WARN("No tile found with at (%d,%d) index", (int)col_id, (int)row_id);
120 }
121
lv_tileview_get_tile_active(lv_obj_t * obj)122 lv_obj_t * lv_tileview_get_tile_active(lv_obj_t * obj)
123 {
124 lv_tileview_t * tv = (lv_tileview_t *) obj;
125 return tv->tile_act;
126 }
127
128 /**********************
129 * STATIC FUNCTIONS
130 **********************/
131
lv_tileview_constructor(const lv_obj_class_t * class_p,lv_obj_t * obj)132 static void lv_tileview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
133 {
134 LV_UNUSED(class_p);
135 lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
136 lv_obj_add_event_cb(obj, tileview_event_cb, LV_EVENT_ALL, NULL);
137 lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ONE);
138 lv_obj_set_scroll_snap_x(obj, LV_SCROLL_SNAP_CENTER);
139 lv_obj_set_scroll_snap_y(obj, LV_SCROLL_SNAP_CENTER);
140
141 }
142
lv_tileview_tile_constructor(const lv_obj_class_t * class_p,lv_obj_t * obj)143 static void lv_tileview_tile_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
144 {
145
146 LV_UNUSED(class_p);
147 lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
148 lv_obj_update_layout(obj); /*Be sure the size is correct*/
149 }
150
tileview_event_cb(lv_event_t * e)151 static void tileview_event_cb(lv_event_t * e)
152 {
153 lv_event_code_t code = lv_event_get_code(e);
154 lv_obj_t * obj = lv_event_get_current_target(e);
155 lv_tileview_t * tv = (lv_tileview_t *) obj;
156
157 if(code == LV_EVENT_SCROLL_END) {
158 lv_indev_t * indev = lv_indev_active();
159 if(indev && indev->state == LV_INDEV_STATE_PRESSED) {
160 return;
161 }
162
163 int32_t w = lv_obj_get_content_width(obj);
164 int32_t h = lv_obj_get_content_height(obj);
165
166 lv_point_t scroll_end;
167 lv_obj_get_scroll_end(obj, &scroll_end);
168 int32_t left = scroll_end.x;
169 int32_t top = scroll_end.y;
170
171 int32_t tx = ((left + (w / 2)) / w) * w;
172 int32_t ty = ((top + (h / 2)) / h) * h;
173
174 lv_dir_t dir = LV_DIR_ALL;
175 uint32_t i;
176 for(i = 0; i < lv_obj_get_child_count(obj); i++) {
177 lv_obj_t * tile_obj = lv_obj_get_child(obj, i);
178 int32_t x = lv_obj_get_x(tile_obj);
179 int32_t y = lv_obj_get_y(tile_obj);
180 if(x == tx && y == ty) {
181 lv_tileview_tile_t * tile = (lv_tileview_tile_t *)tile_obj;
182 tv->tile_act = (lv_obj_t *)tile;
183 dir = tile->dir;
184 lv_obj_send_event(obj, LV_EVENT_VALUE_CHANGED, NULL);
185 break;
186 }
187 }
188 lv_obj_set_scroll_dir(obj, dir);
189 }
190 }
191 #endif /*LV_USE_TILEVIEW*/
192
