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43 lines
941 B
C
43 lines
941 B
C
#include "../../lv_examples.h"
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#if LV_BUILD_EXAMPLES
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#if LV_DRAW_TRANSFORM_USE_MATRIX
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static void timer_cb(lv_timer_t * timer)
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{
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lv_obj_t * obj = lv_timer_get_user_data(timer);
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static float value = 0.1f;
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lv_matrix_t matrix;
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lv_matrix_identity(&matrix);
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lv_matrix_scale(&matrix, value, 1);
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lv_matrix_rotate(&matrix, value * 360);
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lv_obj_set_transform(obj, &matrix);
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value += 0.01f;
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if(value > 2.0f) {
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lv_obj_reset_transform(obj);
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value = 0.1f;
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}
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}
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void lv_example_obj_3(void)
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{
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lv_obj_t * obj = lv_obj_create(lv_screen_active());
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lv_obj_center(obj);
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lv_timer_create(timer_cb, 20, obj);
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}
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#else
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void lv_example_obj_3(void)
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{
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lv_obj_t * label = lv_label_create(lv_screen_active());
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lv_label_set_text_static(label, "LV_DRAW_TRANSFORM_USE_MATRIX is not enabled");
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lv_obj_center(label);
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}
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#endif /*LV_DRAW_TRANSFORM_USE_MATRIX*/
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#endif /*LV_BUILD_EXAMPLES*/
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