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