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lv_example_style_15.c
48 lines (40 loc) · 1.42 KB
/
lv_example_style_15.c
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#include "../lv_examples.h"
#if LV_BUILD_EXAMPLES && LV_USE_BTN && LV_USE_LABEL
/**
* Opacity and Transformations
*/
void lv_example_style_15(void)
{
lv_obj_t * btn;
lv_obj_t * label;
/*Normal button*/
btn = lv_btn_create(lv_scr_act());
lv_obj_set_size(btn, 100, 40);
lv_obj_align(btn, LV_ALIGN_CENTER, 0, -70);
label = lv_label_create(btn);
lv_label_set_text(label, "Normal");
lv_obj_center(label);
/*Set opacity
*The button and the label is rendered to a layer first and that layer is blended*/
btn = lv_btn_create(lv_scr_act());
lv_obj_set_size(btn, 100, 40);
lv_obj_set_style_opa(btn, LV_OPA_50, 0);
lv_obj_align(btn, LV_ALIGN_CENTER, 0, 0);
label = lv_label_create(btn);
lv_label_set_text(label, "Opa:50%");
lv_obj_center(label);
/*Set transformations
*The button and the label is rendered to a layer first and that layer is transformed*/
btn = lv_btn_create(lv_scr_act());
lv_obj_set_size(btn, 100, 40);
lv_obj_set_style_transform_angle(btn, 150, 0); /*15 deg*/
lv_obj_set_style_transform_zoom(btn, 256 + 64, 0); /*1.25x*/
lv_obj_set_style_transform_pivot_x(btn, 50, 0);
lv_obj_set_style_transform_pivot_y(btn, 20, 0);
lv_obj_set_style_opa(btn, LV_OPA_50, 0);
lv_obj_align(btn, LV_ALIGN_CENTER, 0, 70);
label = lv_label_create(btn);
lv_label_set_text(label, "Transf.");
lv_obj_center(label);
}
#endif