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https://github.com/lvgl/lvgl.git
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Gabor Kiss-Vamosi
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
#include "../lv_examples.h"
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#if LV_BUILD_EXAMPLES && LV_USE_SLIDER && LV_USE_LOG
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/**
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* Test between a full background modal and a recolor modal
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*/
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void lv_example_style_20(void)
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{
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/*Add lv_example_style_12 as background*/
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lv_example_style_12();
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/* Set to 1 to enable recolor overlay instead of solid background */
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#if 0
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/* Apply a screen-wide tint using recolor (efficient overlay).
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* This modifies the visual appearance by blending a semi-transparent color
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* over existing content without creating additional objects.
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* It’s lighter on performance compared to a full-size background object. */
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lv_obj_set_style_recolor(lv_screen_active(), lv_color_black(), 0);
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lv_obj_set_style_recolor_opa(lv_screen_active(), LV_OPA_50, 0);
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#else
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/* Simulate a modal background by setting a semi-transparent black background
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* on lv_layer_top(), the highest built-in layer.
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* This method creates a new full-screen object and can consume more resources
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* compared to recolor, especially when using images or gradients. */
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lv_obj_set_style_bg_color(lv_layer_top(), lv_color_black(), 0);
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lv_obj_set_style_bg_opa(lv_layer_top(), LV_OPA_50, 0);
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#endif
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lv_obj_t * obj = lv_slider_create(lv_layer_top());
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lv_obj_center(obj);
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lv_refr_now(NULL); /*Update layouts and render*/
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lv_obj_invalidate(lv_screen_active());
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uint32_t t = lv_tick_get();
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lv_refr_now(NULL); /*Render only*/
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LV_LOG_USER("%" LV_PRIu32 " ms\n", lv_tick_elaps(t));
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}
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#endif
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