查看lvgl.h就可以看到整体的src结构。

/** * @file lvgl.h * Include all LittleV GL related headers */ #ifndef LVGL_H #define LVGL_H #ifdef __cplusplus extern "C" { #endif /********************* * INCLUDES *********************/ #include "src/lv_misc/lv_log.h" #include "src/lv_misc/lv_task.h" #include "src/lv_misc/lv_math.h" #include "src/lv_misc/lv_async.h" #include "src/lv_hal/lv_hal.h" #include "src/lv_core/lv_obj.h" #include "src/lv_core/lv_group.h" #include "src/lv_core/lv_indev.h" #include "src/lv_core/lv_refr.h" #include "src/lv_core/lv_disp.h" #include "src/lv_themes/lv_theme.h" #include "src/lv_font/lv_font.h" #include "src/lv_font/lv_font_fmt_txt.h" #include "src/lv_misc/lv_printf.h" #include "src/lv_widgets/lv_btn.h" #include "src/lv_widgets/lv_imgbtn.h" #include "src/lv_widgets/lv_img.h" #include "src/lv_widgets/lv_label.h" #include "src/lv_widgets/lv_line.h" #include "src/lv_widgets/lv_page.h" #include "src/lv_widgets/lv_cont.h" #include "src/lv_widgets/lv_list.h" #include "src/lv_widgets/lv_chart.h" #include "src/lv_widgets/lv_table.h" #include "src/lv_widgets/lv_checkbox.h" #include "src/lv_widgets/lv_cpicker.h" #include "src/lv_widgets/lv_bar.h" #include "src/lv_widgets/lv_slider.h" #include "src/lv_widgets/lv_led.h" #include "src/lv_widgets/lv_btnmatrix.h" #include "src/lv_widgets/lv_keyboard.h" #include "src/lv_widgets/lv_dropdown.h" #include "src/lv_widgets/lv_roller.h" #include "src/lv_widgets/lv_textarea.h" #include "src/lv_widgets/lv_canvas.h" #include "src/lv_widgets/lv_win.h" #include "src/lv_widgets/lv_tabview.h" #include "src/lv_widgets/lv_tileview.h" #include "src/lv_widgets/lv_msgbox.h" #include "src/lv_widgets/lv_objmask.h" #include "src/lv_widgets/lv_gauge.h" #include "src/lv_widgets/lv_linemeter.h" #include "src/lv_widgets/lv_switch.h" #include "src/lv_widgets/lv_arc.h" #include "src/lv_widgets/lv_spinner.h" #include "src/lv_widgets/lv_calendar.h" #include "src/lv_widgets/lv_spinbox.h" #include "src/lv_draw/lv_img_cache.h" #include "src/lv_api_map.h" /********************* * DEFINES *********************/ /*Current version of LVGL*/ //LVGL的当前版本7.3.0 #define LVGL_VERSION_MAJOR 7 //major（主要的） #define LVGL_VERSION_MINOR 3 //minor（次要的） #define LVGL_VERSION_PATCH 0 //patch（补丁） #define LVGL_VERSION_INFO "dev" //版本信息 /********************** * TYPEDEFS **********************/ /********************** * GLOBAL PROTOTYPES **********************/ /********************** * MACROS **********************/ /** Gives 1 if the x.y.z version is supported in the current version //如果当前版本支持x.y.z版本，置1 * Usage: //用法： * * - Require v6 //需要v6 * #if LV_VERSION_CHECK(6,0,0) * new_func_in_v6(); * #endif * * * - Require at least v5.3 //至少需要v5.3 * #if LV_VERSION_CHECK(5,3,0) * new_feature_from_v5_3(); * #endif * * * - Require v5.3.2 bugfixes //需要v5.3.2错误修复 * #if LV_VERSION_CHECK(5,3,2) * bugfix_in_v5_3_2(); * #endif * * */ #define LV_VERSION_CHECK(x,y,z) (x == LVGL_VERSION_MAJOR && (y < LVGL_VERSION_MINOR || (y == LVGL_VERSION_MINOR && z <= LVGL_VERSION_PATCH))) #ifdef __cplusplus } #endif #endif /*LVGL_H*/

主要是这个宏的用法

LV_VERSION_CHECK(x,y,z)

(x ==  LVGL_VERSION_MAJOR    &&

          (y < LVGL_VERSION_MINOR ||

                            (y == LVGL_VERSION_MINOR && z <= LVGL_VERSION_PATCH)))

 

首先保证主版本。次版本可以小于系统定义的，次版本和系统定义相同的情况下。补丁版本可以随意。

 

misc（miscellaneous 混杂的）

日志：

          src/lv_misc/lv_log.h  依赖：

                             #include "lv_printf.h"

任务：

          src/lv_misc/lv_task.h 依赖：

                    内存：src/lv_misc/lv_mem.h依赖：数学基础：src/lv_misc/lv_math.h

                    lv_ll.h

src/lv_misc/lv_math.h src/lv_misc/lv_async.h