#if LV_BUILD_EXAMPLES && LV_USE_SWITCH static void event_cb(lv_event_t * e) { LV_LOG_USER("Clicked"); static uint32_t cnt = 1; lv_obj_t * btn = lv_event_get_target(e); lv_obj_t * label = lv_obj_get_child(btn, 0); lv_label_set_text_fmt(label, "%"LV_PRIu32, ...
o LV_ARC_DRAW_PART_KNOB 旋钮 § 部分:LV_PART_KNOB § draw_area:旋钮的面积 -rect_dsc: 按键 · LV_KEY_RIGHT/UP 将值增加一。 · LV_KEY_LEFT/DOWN 将值减一。 Example Simple Arc #include"../../lv_examples.h"#ifLV_USE_ARC && LV_BUILD_EXAMPLESvoidlv_example_arc_1(void){/*Create...
lv_obj_t* canvas = lv_canvas_create(lv_scr_act(), NULL); lv_canvas_set_buffer(canvas, cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_IMG_CF_TRUE_COLOR); lv_obj_align(canvas, NULL, LV_ALIGN_CENTER, 0, 0); lv_canvas_fill_bg(canvas, LV_COLOR_SILVER, LV_OPA_COVER); lv_canvas_draw_r...
draw_mask_<type>_init(&mask_param, ...); lvgl.objmask_mask_t * mask_p = lvgl.objmask_add_mask(objmask, &mask_param); Lvgl 支持以下掩码类型: line剪辑线条顶部/底部左侧/右侧的像素。可以从两个点或一个点和一个角度初始化: 角度仅在给定的开始和结束角度之间保持像素 半径将像素仅保留在...
3.其他的可能有img decode,例如支持图片的硬件decode jpeg\png … rect、arc、line…等接口可能有硬件加速支持。这部分在lv_draw_ctx_t 这个结构体中也分类比较清晰了,主要看自己的硬件有支持那些,如果有支持的就可以尝试替代掉这部分的接口。 Blend接口 ...
clip_area;void (*draw_rect)(struct _lv_draw_ctx_t * draw_ctx, const lv_draw_rect_dsc_t ...
lv_obj_draw_part_dsc_t* dsc = (lv_obj_draw_part_dsc_t*)lv_event_get_param(e);if(dsc->part ==LV_PART_ITEMS) { uint32_t row= dsc->id /lv_table_get_col_cnt(table1); uint32_t col= dsc->id - row *lv_table_get_col_cnt(table1);//dsc->label_dsc->align = LV_TEXT_AL...
通过lv_disp_draw_buf_t变量初始化,如下所示: /* Example for 1) */static lv_disp_draw_buf_t draw_buf_dsc_1; static lv_color_t buf_1[MY_DISP_HOR_RES * 10];/*A buffer for 10 rows*/lv_disp_draw_buf_init(&draw_buf_dsc_1, buf_1, NULL, MY_DISP_HOR_RES *10);/*Initialize ...
static be_define_ctypes_class(lv_draw_rect_dsc, &be_lv_draw_rect_dsc, &be_class_ctypes_bytes, "lv_draw_rect_dsc"); static be_define_ctypes_class(lv_event, &be_lv_event, &be_class_ctypes_bytes, "lv_event"); @@ -427,6 +461,7 @@ void be_load_ctypes_lvgl_definitions_lib(bvm...
#include "lvgl/lvgl.h" // 自定义绘制虚线的函数 void draw_dashed_line(lv_obj_t * obj, const lv_point_t * points, uint16_t point_cnt, const lv_color_t * color, lv_opa_t opa) { lv_draw_rect_dsc_t rect_dsc; lv_draw_rect_dsc_init(&rect_dsc); rect_dsc.bg_color = col...