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54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
#include "../lv_examples.h"
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#if LV_BUILD_EXAMPLES
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#if LV_USE_DRAW_SW_COMPLEX_GRADIENTS
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/**
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* Using radial gradient as background
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*/
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void lv_example_style_17(void)
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{
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static const lv_color_t grad_colors[2] = {
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LV_COLOR_MAKE(0x9B, 0x18, 0x42),
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LV_COLOR_MAKE(0x00, 0x00, 0x00),
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};
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int32_t width = lv_display_get_horizontal_resolution(NULL);
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int32_t height = lv_display_get_vertical_resolution(NULL);
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static lv_style_t style;
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lv_style_init(&style);
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/*First define a color gradient. In this example we use a purple to black color map.*/
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static lv_grad_dsc_t grad;
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lv_gradient_init_stops(&grad, grad_colors, NULL, NULL, sizeof(grad_colors) / sizeof(lv_color_t));
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/*Make a radial gradient with the center in the middle of the object, extending to the farthest corner*/
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lv_grad_radial_init(&grad, LV_GRAD_CENTER, LV_GRAD_CENTER, LV_GRAD_RIGHT, LV_GRAD_BOTTOM, LV_GRAD_EXTEND_PAD);
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/*Set gradient as background*/
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lv_style_set_bg_grad(&style, &grad);
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/*Create an object with the new style*/
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lv_obj_t * obj = lv_obj_create(lv_screen_active());
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lv_obj_add_style(obj, &style, 0);
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lv_obj_set_size(obj, width, height);
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lv_obj_center(obj);
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}
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#else
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void lv_example_style_17(void)
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{
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lv_obj_t * label = lv_label_create(lv_screen_active());
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lv_obj_set_width(label, LV_PCT(80));
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lv_label_set_text(label, "LV_USE_DRAW_SW_COMPLEX_GRADIENTS is not enabled");
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lv_label_set_long_mode(label, LV_LABEL_LONG_SCROLL_CIRCULAR);
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lv_obj_center(label);
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}
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#endif /*LV_USE_DRAW_SW_COMPLEX_GRADIENTS*/
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#endif /*LV_BUILD_EXAMPLES*/
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