1 #include "../../lv_examples.h"
2 #if LV_USE_BTNMATRIX && LV_BUILD_EXAMPLES
3
event_cb(lv_event_t * e)4 static void event_cb(lv_event_t * e)
5 {
6 lv_obj_t * obj = lv_event_get_target(e);
7 uint32_t id = lv_btnmatrix_get_selected_btn(obj);
8 bool prev = id == 0 ? true : false;
9 bool next = id == 6 ? true : false;
10 if(prev || next) {
11 /*Find the checked button*/
12 uint32_t i;
13 for(i = 1; i < 7; i++) {
14 if(lv_btnmatrix_has_btn_ctrl(obj, i, LV_BTNMATRIX_CTRL_CHECKED)) break;
15 }
16
17 if(prev && i > 1) i--;
18 else if(next && i < 5) i++;
19
20 lv_btnmatrix_set_btn_ctrl(obj, i, LV_BTNMATRIX_CTRL_CHECKED);
21 }
22 }
23
24 /**
25 * Make a button group (pagination)
26 */
lv_example_btnmatrix_3(void)27 void lv_example_btnmatrix_3(void)
28 {
29 static lv_style_t style_bg;
30 lv_style_init(&style_bg);
31 lv_style_set_pad_all(&style_bg, 0);
32 lv_style_set_pad_gap(&style_bg, 0);
33 lv_style_set_clip_corner(&style_bg, true);
34 lv_style_set_radius(&style_bg, LV_RADIUS_CIRCLE);
35 lv_style_set_border_width(&style_bg, 0);
36
37 static lv_style_t style_btn;
38 lv_style_init(&style_btn);
39 lv_style_set_radius(&style_btn, 0);
40 lv_style_set_border_width(&style_btn, 1);
41 lv_style_set_border_opa(&style_btn, LV_OPA_50);
42 lv_style_set_border_color(&style_btn, lv_palette_main(LV_PALETTE_GREY));
43 lv_style_set_border_side(&style_btn, LV_BORDER_SIDE_INTERNAL);
44 lv_style_set_radius(&style_btn, 0);
45
46 static const char * map[] = {LV_SYMBOL_LEFT, "1", "2", "3", "4", "5", LV_SYMBOL_RIGHT, ""};
47
48 lv_obj_t * btnm = lv_btnmatrix_create(lv_scr_act());
49 lv_btnmatrix_set_map(btnm, map);
50 lv_obj_add_style(btnm, &style_bg, 0);
51 lv_obj_add_style(btnm, &style_btn, LV_PART_ITEMS);
52 lv_obj_add_event_cb(btnm, event_cb, LV_EVENT_VALUE_CHANGED, NULL);
53 lv_obj_set_size(btnm, 225, 35);
54
55 /*Allow selecting on one number at time*/
56 lv_btnmatrix_set_btn_ctrl_all(btnm, LV_BTNMATRIX_CTRL_CHECKABLE);
57 lv_btnmatrix_clear_btn_ctrl(btnm, 0, LV_BTNMATRIX_CTRL_CHECKABLE);
58 lv_btnmatrix_clear_btn_ctrl(btnm, 6, LV_BTNMATRIX_CTRL_CHECKABLE);
59
60 lv_btnmatrix_set_one_checked(btnm, true);
61 lv_btnmatrix_set_btn_ctrl(btnm, 1, LV_BTNMATRIX_CTRL_CHECKED);
62
63 lv_obj_center(btnm);
64
65 }
66
67 #endif
68
