github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix(arc) minor fixes and example updates

Browse Source
This commit is contained in:
Gabor Kiss-Vamosi
2021-05-07 13:33:53 +02:00
parent 9ab0a09fd2
commit 9c7af6c321
3 changed files with 23 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
examples/widgets/arc/lv_example_arc_1.c
View File

@@ -6,8 +6,10 @@ void lv_example_arc_1(void)
{
/*Create an Arc*/
lv_obj_t * arc = lv_arc_create(lv_scr_act());
lv_arc_set_end_angle(arc, 200);
lv_obj_set_size(arc, 150, 150);
lv_arc_set_rotation(arc, 135);
lv_arc_set_bg_angles(arc, 0, 270);
lv_arc_set_value(arc, 40);
lv_obj_center(arc);
}

36
examples/widgets/arc/lv_example_arc_2.c
View File

@@ -2,22 +2,9 @@
#if LV_USE_ARC && LV_BUILD_EXAMPLES
/**
* An `lv_timer` to call periodically to set the angles of the arc
* @param t
*/
static void arc_loader(lv_timer_t * t)
static void set_angle(void * obj, int32_t v)
{
static int16_t a = 270;
a+=5;
lv_arc_set_end_angle(t->user_data, a);
if(a >= 270 + 360) {
lv_timer_del(t);
return;
}
lv_arc_set_value(obj, v);
}
/**
@@ -27,13 +14,24 @@ void lv_example_arc_2(void)
{
/*Create an Arc*/
lv_obj_t * arc = lv_arc_create(lv_scr_act());
lv_arc_set_rotation(arc, 270);
lv_arc_set_bg_angles(arc, 0, 360);
lv_arc_set_angles(arc, 270, 270);
lv_obj_remove_style(arc, NULL, LV_PART_KNOB); /*Be sure the knob is not displayed*/
lv_obj_clear_flag(arc, LV_OBJ_FLAG_CLICKABLE); /*To not allow adjusting by click*/
lv_obj_center(arc);
/*Create an `lv_timer` to update the arc.
*Store the `arc` in the user data*/
lv_timer_create(arc_loader, 20, arc);
lv_anim_t a;
lv_anim_init(&a);
lv_anim_set_var(&a, arc);
lv_anim_set_exec_cb(&a, set_angle);
lv_anim_set_time(&a, 1000);
lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE); /*Just for the demo*/
lv_anim_set_repeat_delay(&a, 500);
lv_anim_set_values(&a, 0, 100);
lv_anim_start(&a);
}
#endif