lvgl lv_conf.h文件详解
2024-05-11 22:28:34
学习的是正点原子的例程，跟着自己敲了些中文注释，特此分享
/*** @file lv_conf.h**//** COPY THIS FILE AS `lv_conf.h` NEXT TO the `lvgl` FOLDER*/#if 1 /*Set it to "1" to enable content*/#ifndef LV_CONF_H
#define LV_CONF_H
/* clang-format off */#include <stdint.h>/*====================Graphical settings*====================*///屏幕分辨率
#define LV_HOR_RES_MAX (480) //320
#define LV_VER_RES_MAX (800) //480/* Color depth:* - 1: 1 byte per pixel* - 8: RGB233* - 16: RGB565* - 32: ARGB8888*/
#define LV_COLOR_DEPTH 16//色域 默认为16/* Swap the 2 bytes of RGB565 color.* Useful if the display has a 8 bit interface (e.g. SPI)*/
#define LV_COLOR_16_SWAP 0//色域修改 默认不使能/* 1: Enable screen transparency.* Useful for OSD or other overlapping GUIs.* Requires `LV_COLOR_DEPTH = 32` colors and the screen's style should be modified: `style.body.opa = ...`*/
#define LV_COLOR_SCREEN_TRANSP 0/*Images pixels with this color will not be drawn (with chroma keying)*/
#define LV_COLOR_TRANSP LV_COLOR_LIME /*LV_COLOR_LIME: pure green*实际图片中不显示现在设置的颜色//* Enable anti-aliasing (lines, and radiuses will be smoothed) */
#define LV_ANTIALIAS 1 //使能抗锯齿 使字体光滑/* Default display refresh period.屏幕刷新周期，默认30(ms)* Can be changed in the display driver (`lv_disp_drv_t`).*/
#define LV_DISP_DEF_REFR_PERIOD 30 /*[ms]*//* Dot Per Inch: used to initialize default sizes.* E.g. a button with width = LV_DPI / 2 -> half inch wide界面的放大比例* (Not so important, you can adjust it to modify default sizes and spaces)*/
#define LV_DPI 60 /*[px]*/ /* Type of coordinates. Should be `int16_t` (or `int32_t` for extreme cases) */
typedef int16_t lv_coord_t;//坐标的类型/*=========================Memory manager settings*=========================*//* LittelvGL's internal memory manager's settings.* The graphical objects and other related data are stored here. *//* 1: use custom malloc/free, 0: use the built-in `lv_mem_alloc` and `lv_mem_free` */
#define LV_MEM_CUSTOM 0 //内存管理 如果宏定义为0 使用lvgl自带的内存管理，如果为1，使用你自己的内存管理
#if LV_MEM_CUSTOM == 0
/* Size of the memory used by `lv_mem_alloc` in bytes (>= 2kB)*/
# define LV_MEM_SIZE (16U * 1024U)//交给lvgl堆的大小/* Complier prefix for a big array declaration */
# define LV_MEM_ATTR //一般用来设置字节对齐，默认留空/* Set an address for the memory pool instead of allocating it as an array.* Can be in external SRAM too. */
# define LV_MEM_ADR 0 //外部sram的地址，注意不要和显示缓冲器冲突/* Automatically defrag. on free. Defrag. means joining the adjacent free cells. */
# define LV_MEM_AUTO_DEFRAG 1 //碎片化整理，默认使能
#else /*LV_MEM_CUSTOM*/
# define LV_MEM_CUSTOM_INCLUDE <stdlib.h> /*Header for the dynamic memory function*/
# define LV_MEM_CUSTOM_ALLOC malloc /*Wrapper to malloc*/
# define LV_MEM_CUSTOM_FREE free /*Wrapper to free*/
#endif /*LV_MEM_CUSTOM*//* Garbage Collector settings* Used if lvgl is binded to higher level language and the memory is managed by that language */
#define LV_ENABLE_GC 0 //高级语言用到，默认不使能
#if LV_ENABLE_GC != 0
# define LV_GC_INCLUDE "gc.h" /*Include Garbage Collector related things*/
# define LV_MEM_CUSTOM_REALLOC your_realloc /*Wrapper to realloc*/
# define LV_MEM_CUSTOM_GET_SIZE your_mem_get_size /*Wrapper to lv_mem_get_size*/
#endif /* LV_ENABLE_GC *//*=======================Input device settings*=======================*//* Input device default settings.* Can be changed in the Input device driver (`lv_indev_drv_t`)*//* Input device read period in milliseconds */
#define LV_INDEV_DEF_READ_PERIOD 30//触摸屏扫描周期/* Drag threshold in pixels */
#define LV_INDEV_DEF_DRAG_LIMIT 10//误差值，移动十个像素才认为你在移动/* Drag throw slow-down in [%]. Greater value -> faster slow-down */
#define LV_INDEV_DEF_DRAG_THROW 20 //惯性，值越小，惯性越大，移动越远/* Long press time in milliseconds.* Time to send `LV_EVENT_LONG_PRESSSED`) */
#define LV_INDEV_DEF_LONG_PRESS_TIME 400//长按时间，大概长按多少毫秒，认为这是一次有效的长按。/* Repeated trigger period in long press [ms]* Time between `LV_EVENT_LONG_PRESSED_REPEAT */
#define LV_INDEV_DEF_LONG_PRESS_REP_TIME 100 //重复长按的间隔/*==================* Feature usage*==================*//*1: Enable the Animations */
#define LV_USE_ANIMATION 1 //是否使能动画
#if LV_USE_ANIMATION/*Declare the type of the user data of animations (can be e.g. `void *`, `int`, `struct`)*/
typedef void * lv_anim_user_data_t;#endif/* 1: Enable shadow drawing*/
#define LV_USE_SHADOW 1 //阴影效果是否使能/* 1: Enable object groups (for keyboard/encoder navigation) */
#define LV_USE_GROUP 1 //分组，上下左右的导航，看实际情况开启或者不开启
#if LV_USE_GROUP
typedef void * lv_group_user_data_t;
#endif /*LV_USE_GROUP*//* 1: Enable GPU interface*/
#define LV_USE_GPU 0 //没有gpu 所以关闭/* 1: Enable file system (might be required for images */
#define LV_USE_FILESYSTEM 0 //不使用他的文件系统
#if LV_USE_FILESYSTEM
/*Declare the type of the user data of file system drivers (can be e.g. `void *`, `int`, `struct`)*/
typedef void * lv_fs_drv_user_data_t;
#endif/*1: Add a `user_data` to drivers and objects*/
#define LV_USE_USER_DATA 0 //携带值/*========================* Image decoder and cache*========================*//* 1: Enable indexed (palette) images */
#define LV_IMG_CF_INDEXED 1/* 1: Enable alpha indexed images */
#define LV_IMG_CF_ALPHA 1/* Default image cache size. Image caching keeps the images opened.* If only the built-in image formats are used there is no real advantage of caching.* (I.e. no new image decoder is added)* With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.* However the opened images might consume additional RAM.* LV_IMG_CACHE_DEF_SIZE must be >= 1 */
#define LV_IMG_CACHE_DEF_SIZE 1/*Declare the type of the user data of image decoder (can be e.g. `void *`, `int`, `struct`)*/
typedef void * lv_img_decoder_user_data_t;/*=====================* Compiler settings*====================*/
/* Define a custom attribute to `lv_tick_inc` function */
#define LV_ATTRIBUTE_TICK_INC/* Define a custom attribute to `lv_task_handler` function */
#define LV_ATTRIBUTE_TASK_HANDLER/* With size optimization (-Os) the compiler might not align data to* 4 or 8 byte boundary. This alignment will be explicitly applied where needed.* E.g. __attribute__((aligned(4))) */
#define LV_ATTRIBUTE_MEM_ALIGN/* Attribute to mark large constant arrays for example* font's bitmaps */
#define LV_ATTRIBUTE_LARGE_CONST /*===================* HAL settings*==================*//* 1: use a custom tick source.* It removes the need to manually update the tick with `lv_tick_inc`) */
#define LV_TICK_CUSTOM 0
#if LV_TICK_CUSTOM == 1
#define LV_TICK_CUSTOM_INCLUDE "something.h" /*Header for the sys time function*/
#define LV_TICK_CUSTOM_SYS_TIME_EXPR (millis()) /*Expression evaluating to current systime in ms*/
#endif /*LV_TICK_CUSTOM*/typedef void * lv_disp_drv_user_data_t; /*Type of user data in the display driver*/
typedef void * lv_indev_drv_user_data_t; /*Type of user data in the input device driver*//*================* Log settings*===============*//*1: Enable the log module*/
#define LV_USE_LOG 0
#if LV_USE_LOG
/* How important log should be added:* LV_LOG_LEVEL_TRACE A lot of logs to give detailed information* LV_LOG_LEVEL_INFO Log important events* LV_LOG_LEVEL_WARN Log if something unwanted happened but didn't cause a problem* LV_LOG_LEVEL_ERROR Only critical issue, when the system may fail* LV_LOG_LEVEL_NONE Do not log anything*/
# define LV_LOG_LEVEL LV_LOG_LEVEL_WARN/* 1: Print the log with 'printf';* 0: user need to register a callback with `lv_log_register_print`*/
# define LV_LOG_PRINTF 0
#endif /*LV_USE_LOG*//*================* THEME USAGE 官方自带的8种主题*================*/
#define LV_THEME_LIVE_UPDATE 1 /*1: Allow theme switching at run time. Uses 8..10 kB of RAM*切换主题/#define LV_USE_THEME_TEMPL 1 /*Just for test*/
#define LV_USE_THEME_DEFAULT 1 /*Built mainly from the built-in styles. Consumes very few RAM*/
#define LV_USE_THEME_ALIEN 1 /*Dark futuristic theme*/
#define LV_USE_THEME_NIGHT 1 /*Dark elegant theme*/
#define LV_USE_THEME_MONO 1 /*Mono color theme for monochrome displays*/
#define LV_USE_THEME_MATERIAL 1 /*Flat theme with bold colors and light shadows*/
#define LV_USE_THEME_ZEN 1 /*Peaceful, mainly light theme */
#define LV_USE_THEME_NEMO 1 /*Water-like theme based on the movie "Finding Nemo"*//*==================* FONT USAGE*===================*//* The built-in fonts contains the ASCII range and some Symbols with 4 bit-per-pixel.* The symbols are available via `LV_SYMBOL_...` defines* More info about fonts: https://docs.littlevgl.com/#Fonts* To create a new font go to: https://littlevgl.com/ttf-font-to-c-array*//* Robot fonts with bpp = 4* https://fonts.google.com/specimen/Roboto */
#define LV_FONT_ROBOTO_12 0 //字体大小，12，16，22，28号字体
#define LV_FONT_ROBOTO_16 1
#define LV_FONT_ROBOTO_22 0
#define LV_FONT_ROBOTO_28 0/*Pixel perfect monospace font* http://pelulamu.net/unscii/ */
#define LV_FONT_UNSCII_8 0/* Optionally declare your custom fonts here.* You can use these fonts as default font too* and they will be available globally. E.g.* #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) \* LV_FONT_DECLARE(my_font_2)*/
#define LV_FONT_CUSTOM_DECLARE //用来声明自己创建的字体/*Always set a default font from the built-in fonts*/
#define LV_FONT_DEFAULT &lv_font_roboto_16 //配置默认字体/* Enable it if you have fonts with a lot of characters.* The limit depends on the font size, font face and bpp* but with > 10,000 characters if you see issues probably you need to enable it.*/
#define LV_FONT_FMT_TXT_LARGE 0/*Declare the type of the user data of fonts (can be e.g. `void *`, `int`, `struct`)*/
typedef void * lv_font_user_data_t;/*=================* Text settings*=================*//* Select a character encoding for strings.* Your IDE or editor should have the same character encoding* - LV_TXT_ENC_UTF8* - LV_TXT_ENC_ASCII* */
#define LV_TXT_ENC LV_TXT_ENC_UTF8 //字体的编码方式/*Can break (wrap) texts on these chars*/
#define LV_TXT_BREAK_CHARS " ,.;:-_"/*===================* LV_OBJ SETTINGS*==================*//*Declare the type of the user data of object (can be e.g. `void *`, `int`, `struct`)*/
typedef void * lv_obj_user_data_t;/*1: enable `lv_obj_realaign()` based on `lv_obj_align()` parameters*/
#define LV_USE_OBJ_REALIGN 1/* Enable to make the object clickable on a larger area.* LV_EXT_CLICK_AREA_OFF or 0: Disable this feature* LV_EXT_CLICK_AREA_TINY: The extra area can be adjusted horizontally and vertically (0..255 px)* LV_EXT_CLICK_AREA_FULL: The extra area can be adjusted in all 4 directions (-32k..+32k px)*/
#define LV_USE_EXT_CLICK_AREA LV_EXT_CLICK_AREA_OFF/*==================* LV OBJ X USAGE*================*/
/** Documentation of the object types: https://docs.littlevgl.com/#Object-types*/
//控件的使能和失能
/*Arc (dependencies: -)*/
#define LV_USE_ARC 1/*Bar (dependencies: -)*/
#define LV_USE_BAR 1/*Button (dependencies: lv_cont*/
#define LV_USE_BTN 1
#if LV_USE_BTN != 0
/*Enable button-state animations - draw a circle on click (dependencies: LV_USE_ANIMATION)*/
# define LV_BTN_INK_EFFECT 0
#endif/*Button matrix (dependencies: -)*/
#define LV_USE_BTNM 1/*Calendar (dependencies: -)*/
#define LV_USE_CALENDAR 1/*Canvas (dependencies: lv_img)*/
#define LV_USE_CANVAS 1/*Check box (dependencies: lv_btn, lv_label)*/
#define LV_USE_CB 1/*Chart (dependencies: -)*/
#define LV_USE_CHART 1
#if LV_USE_CHART
# define LV_CHART_AXIS_TICK_LABEL_MAX_LEN 20
#endif/*Container (dependencies: -*/
#define LV_USE_CONT 1/*Drop down list (dependencies: lv_page, lv_label, lv_symbol_def.h)*/
#define LV_USE_DDLIST 1
#if LV_USE_DDLIST != 0
/*Open and close default animation time [ms] (0: no animation)*/
# define LV_DDLIST_DEF_ANIM_TIME 200
#endif/*Gauge (dependencies:lv_bar, lv_lmeter)*/
#define LV_USE_GAUGE 1/*Image (dependencies: lv_label*/
#define LV_USE_IMG 1/*Image Button (dependencies: lv_btn*/
#define LV_USE_IMGBTN 1
#if LV_USE_IMGBTN
/*1: The imgbtn requires left, mid and right parts and the width can be set freely*/
# define LV_IMGBTN_TILED 0
#endif/*Keyboard (dependencies: lv_btnm)*/
#define LV_USE_KB 1/*Label (dependencies: -*/
#define LV_USE_LABEL 1
#if LV_USE_LABEL != 0
/*Hor, or ver. scroll speed [px/sec] in 'LV_LABEL_LONG_ROLL/ROLL_CIRC' mode*/
# define LV_LABEL_DEF_SCROLL_SPEED 25/* Waiting period at beginning/end of animation cycle */
# define LV_LABEL_WAIT_CHAR_COUNT 3/*Enable selecting text of the label */
# define LV_LABEL_TEXT_SEL 0/*Store extra some info in labels (12 bytes) to speed up drawing of very long texts*/
# define LV_LABEL_LONG_TXT_HINT 0
#endif/*LED (dependencies: -)*/
#define LV_USE_LED 1/*Line (dependencies: -*/
#define LV_USE_LINE 1/*List (dependencies: lv_page, lv_btn, lv_label, (lv_img optionally for icons ))*/
#define LV_USE_LIST 1
#if LV_USE_LIST != 0
/*Default animation time of focusing to a list element [ms] (0: no animation) */
# define LV_LIST_DEF_ANIM_TIME 100
#endif/*Line meter (dependencies: *;)*/
#define LV_USE_LMETER 1/*Message box (dependencies: lv_rect, lv_btnm, lv_label)*/
#define LV_USE_MBOX 1/*Page (dependencies: lv_cont)*/
#define LV_USE_PAGE 1
#if LV_USE_PAGE != 0
/*Focus default animation time [ms] (0: no animation)*/
# define LV_PAGE_DEF_ANIM_TIME 400
#endif/*Preload (dependencies: lv_arc, lv_anim)*/
#define LV_USE_PRELOAD 1
#if LV_USE_PRELOAD != 0
# define LV_PRELOAD_DEF_ARC_LENGTH 60 /*[deg]*/
# define LV_PRELOAD_DEF_SPIN_TIME 1000 /*[ms]*/
# define LV_PRELOAD_DEF_ANIM LV_PRELOAD_TYPE_SPINNING_ARC
#endif/*Roller (dependencies: lv_ddlist)*/
#define LV_USE_ROLLER 1
#if LV_USE_ROLLER != 0
/*Focus animation time [ms] (0: no animation)*/
# define LV_ROLLER_DEF_ANIM_TIME 200/*Number of extra "pages" when the roller is infinite*/
# define LV_ROLLER_INF_PAGES 7
#endif/*Slider (dependencies: lv_bar)*/
#define LV_USE_SLIDER 1/*Spinbox (dependencies: lv_ta)*/
#define LV_USE_SPINBOX 1/*Switch (dependencies: lv_slider)*/
#define LV_USE_SW 1/*Text area (dependencies: lv_label, lv_page)*/
#define LV_USE_TA 1
#if LV_USE_TA != 0
# define LV_TA_DEF_CURSOR_BLINK_TIME 400 /*ms*/
# define LV_TA_DEF_PWD_SHOW_TIME 1500 /*ms*/
#endif/*Table (dependencies: lv_label)*/
#define LV_USE_TABLE 1
#if LV_USE_TABLE
# define LV_TABLE_COL_MAX 12
#endif/*Tab (dependencies: lv_page, lv_btnm)*/
#define LV_USE_TABVIEW 1
# if LV_USE_TABVIEW != 0
/*Time of slide animation [ms] (0: no animation)*/
# define LV_TABVIEW_DEF_ANIM_TIME 300
#endif/*Tileview (dependencies: lv_page) */
#define LV_USE_TILEVIEW 1
#if LV_USE_TILEVIEW
/*Time of slide animation [ms] (0: no animation)*/
# define LV_TILEVIEW_DEF_ANIM_TIME 300
#endif/*Window (dependencies: lv_cont, lv_btn, lv_label, lv_img, lv_page)*/
#define LV_USE_WIN 1/*==================* Non-user section*==================*/#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) /* Disable warnings for Visual Studio*/
# define _CRT_SECURE_NO_WARNINGS
#endif/*--END OF LV_CONF_H--*//*Be sure every define has a default value*/
#include "lvgl/src/lv_conf_checker.h"//赋值，赋默认的值#endif /*LV_CONF_H*/#endif /*End of "Content enable"*/lvgl lv_conf.h文件详解相关推荐
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