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fix(example_grad): return value from lv_style_get_prop not checked (#7793)

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This commit is contained in:
Paul Vogel
2025-02-18 20:36:37 -06:00
committed by GitHub
parent d22bf032b1
commit 77f8f62d18
1 changed files with 24 additions and 16 deletions
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examples/grad/lv_example_grad_1.c
+24 -16
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@@ -21,34 +21,42 @@ static void frac_1_event_cb(lv_event_t * e)
{
lv_style_t * style = lv_event_get_user_data(e);
lv_style_value_t v;
lv_style_get_prop(style, LV_STYLE_BG_GRAD, &v);
lv_grad_dsc_t * dsc = (lv_grad_dsc_t *)v.ptr;
if(lv_style_get_prop(style, LV_STYLE_BG_GRAD, &v) != LV_STYLE_RES_FOUND) {
LV_LOG_WARN("style prop not found");
}
else {
lv_grad_dsc_t * dsc = (lv_grad_dsc_t *)v.ptr;
lv_point_t p;
position_bullet(e, &p);
lv_point_t p;
position_bullet(e, &p);
lv_obj_t * bullet = lv_event_get_target(e);
lv_obj_t * parent = lv_obj_get_parent(bullet);
dsc->stops[0].frac = LV_CLAMP(0, p.x * 255 / lv_obj_get_width(parent), 255);
lv_obj_t * bullet = lv_event_get_target(e);
lv_obj_t * parent = lv_obj_get_parent(bullet);
dsc->stops[0].frac = LV_CLAMP(0, p.x * 255 / lv_obj_get_width(parent), 255);
lv_obj_invalidate(parent);
lv_obj_invalidate(parent);
}
}
static void frac_2_event_cb(lv_event_t * e)
{
lv_style_t * style = lv_event_get_user_data(e);
lv_style_value_t v;
lv_style_get_prop(style, LV_STYLE_BG_GRAD, &v);
lv_grad_dsc_t * dsc = (lv_grad_dsc_t *)v.ptr;
if(lv_style_get_prop(style, LV_STYLE_BG_GRAD, &v) != LV_STYLE_RES_FOUND) {
LV_LOG_WARN("style prop not found");
}
else {
lv_grad_dsc_t * dsc = (lv_grad_dsc_t *)v.ptr;
lv_point_t p;
position_bullet(e, &p);
lv_point_t p;
position_bullet(e, &p);
lv_obj_t * bullet = lv_event_get_target(e);
lv_obj_t * parent = lv_obj_get_parent(bullet);
lv_obj_t * bullet = lv_event_get_target(e);
lv_obj_t * parent = lv_obj_get_parent(bullet);
dsc->stops[1].frac = LV_CLAMP(0, p.x * 255 / lv_obj_get_width(parent), 255);
lv_obj_invalidate(parent);
dsc->stops[1].frac = LV_CLAMP(0, p.x * 255 / lv_obj_get_width(parent), 255);
lv_obj_invalidate(parent);
}
}
/**