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43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
#include "../../lv_examples.h"
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#if LV_USE_IMG && LV_BUILD_EXAMPLES
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static void set_angle(void * img, int32_t v)
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{
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lv_image_set_rotation(img, v);
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}
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static void set_zoom(void * img, int32_t v)
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{
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lv_image_set_zoom(img, v);
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}
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/**
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* Show transformations (zoom and rotation) using a pivot point.
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*/
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void lv_example_image_3(void)
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{
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LV_IMAGE_DECLARE(img_cogwheel_argb);
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/*Now create the actual image*/
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lv_obj_t * img = lv_image_create(lv_screen_active());
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lv_image_set_src(img, &img_cogwheel_argb);
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lv_obj_align(img, LV_ALIGN_CENTER, 50, 50);
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lv_image_set_pivot(img, 0, 0); /*Rotate around the top left corner*/
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lv_anim_t a;
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lv_anim_init(&a);
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lv_anim_set_var(&a, img);
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lv_anim_set_exec_cb(&a, set_angle);
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lv_anim_set_values(&a, 0, 3600);
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lv_anim_set_time(&a, 5000);
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lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
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lv_anim_start(&a);
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lv_anim_set_exec_cb(&a, set_zoom);
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lv_anim_set_values(&a, 128, 256);
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lv_anim_set_playback_time(&a, 3000);
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lv_anim_start(&a);
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}
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#endif
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