# Kconfig file for LVGL v8.4

menu "LVGL configuration"

# Define CONFIG_LV_CONF_SKIP so we can use LVGL

# without lv_conf.h file, the lv_conf_internal.h and

# lv_conf_kconfig.h files are used instead.

config LV_CONF_SKIP

bool "Uncheck this to use custom lv_conf.h"

default y

config LV_CONF_MINIMAL

bool "LVGL minimal configuration."

menu "Color settings"

choice LV_COLOR_DEPTH

prompt "Color depth."

default LV_COLOR_DEPTH_16

help

Color depth to be used.

config LV_COLOR_DEPTH_32

bool "32: ARGB8888"

config LV_COLOR_DEPTH_16

bool "16: RGB565"

config LV_COLOR_DEPTH_8

bool "8: RGB232"

config LV_COLOR_DEPTH_1

bool "1: 1 byte per pixel"

endchoice

config LV_COLOR_DEPTH

int

default 1 if LV_COLOR_DEPTH_1

default 8 if LV_COLOR_DEPTH_8

default 16 if LV_COLOR_DEPTH_16

default 32 if LV_COLOR_DEPTH_32

config LV_COLOR_16_SWAP

bool "Swap the 2 bytes of RGB565 color. Useful if the display has an 8-bit interface (e.g. SPI)."

depends on LV_COLOR_DEPTH_16

config LV_COLOR_SCREEN_TRANSP

bool "Enable more complex drawing routines to manage screens transparency."

help

Can be used if the UI is above another layer, e.g. an OSD menu or video player.

The screen's `bg_opa` should be set to non LV_OPA_COVER value

config LV_COLOR_MIX_ROUND_OFS

int "Adjust color mix functions rounding"

default 128 if !LV_COLOR_DEPTH_32

default 0 if LV_COLOR_DEPTH_32

range 0 254

help

0: no adjustment, get the integer part of the result (round down)

64: round up from x.75

128: round up from half

192: round up from x.25

254: round up

config LV_COLOR_CHROMA_KEY_HEX

hex "Images pixels with this color will not be drawn (if they are chroma keyed)."

range 0x000000 0xFFFFFF

default 0x00FF00

help

See misc/lv_color.h for some color values examples.

endmenu

menu "Memory settings"

config LV_MEM_CUSTOM

bool "If true use custom malloc/free, otherwise use the built-in `lv_mem_alloc()` and `lv_mem_free()`"

config LV_MEM_SIZE_KILOBYTES

int "Size of the memory used by `lv_mem_alloc` in kilobytes (>= 2kB)"

range 2 128

default 32

depends on !LV_MEM_CUSTOM

config LV_MEM_ADDR

hex "Address for the memory pool instead of allocating it as a normal array"

default 0x0

depends on !LV_MEM_CUSTOM

config LV_MEM_CUSTOM_INCLUDE

string "Header to include for the custom memory function"

default "stdlib.h"

depends on LV_MEM_CUSTOM

config LV_MEM_BUF_MAX_NUM

int "Number of the memory buffer"

default 16

help

Number of the intermediate memory buffer used during rendering and other

internal processing mechanisms. You will see an error log message if

there wasn't enough buffers.

config LV_MEMCPY_MEMSET_STD

bool "Use the standard memcpy and memset instead of LVGL's own functions"

endmenu

menu "HAL Settings"

config LV_DISP_DEF_REFR_PERIOD

int "Default display refresh period (ms)."

default 30

help

Can be changed in the display driver (`lv_disp_drv_t`).

config LV_INDEV_DEF_READ_PERIOD

int "Input device read period [ms]."

default 30

config LV_TICK_CUSTOM

bool "Use a custom tick source"

config LV_TICK_CUSTOM_INCLUDE

string "Header for the system time function"

default "Arduino.h"

depends on LV_TICK_CUSTOM

config LV_DPI_DEF

int "Default Dots Per Inch (in px)."

default 130

help

Used to initialize default sizes such as widgets sized, style paddings.

(Not so important, you can adjust it to modify default sizes and spaces)

endmenu

menu "Feature configuration"

menu "Drawing"

config LV_DRAW_COMPLEX

bool "Enable complex draw engine"

default y

help

Required to draw shadow, gradient, rounded corners, circles, arc, skew lines,

image transformations or any masks.

config LV_SHADOW_CACHE_SIZE

int "Allow buffering some shadow calculation"

depends on LV_DRAW_COMPLEX

default 0

help

LV_SHADOW_CACHE_SIZE is the max shadow size to buffer, where

shadow size is `shadow_width + radius`.

Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost.

config LV_CIRCLE_CACHE_SIZE

int "Set number of maximally cached circle data"

depends on LV_DRAW_COMPLEX

default 4

help

The circumference of 1/4 circle are saved for anti-aliasing

radius * 4 bytes are used per circle (the most often used

radiuses are saved).

Set to 0 to disable caching.

config LV_LAYER_SIMPLE_BUF_SIZE

int "Optimal size to buffer the widget with opacity"

default 24576

help

"Simple layers" are used when a widget has `style_opa < 255`

to buffer the widget into a layer and blend it as an image

with the given opacity. Note that `bg_opa`, `text_opa` etc

don't require buffering into layer.

config LV_IMG_CACHE_DEF_SIZE

int "Default image cache size. 0 to disable caching."

default 0

help

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.

config LV_GRADIENT_MAX_STOPS

int "Number of stops allowed per gradient."

default 2

help

Increase this to allow more stops.

This adds (sizeof(lv_color_t) + 1) bytes per additional stop

config LV_GRAD_CACHE_DEF_SIZE

int "Default gradient buffer size."

default 0

help

When LVGL calculates the gradient "maps" it can save them into a cache to avoid calculating them again.

LV_GRAD_CACHE_DEF_SIZE sets the size of this cache in bytes.

If the cache is too small the map will be allocated only while it's required for the drawing.

0 mean no caching.

config LV_DITHER_GRADIENT

bool "Allow dithering the gradients"

help

Allow dithering the gradients (to achieve visual smooth color gradients on limited color depth display)

LV_DITHER_GRADIENT implies allocating one or two more lines of the object's rendering surface

The increase in memory consumption is (32 bits * object width) plus 24 bits * object width if using error diffusion

config LV_DITHER_ERROR_DIFFUSION

bool "Add support for error diffusion dithering"

depends on LV_DITHER_GRADIENT

help

Error diffusion dithering gets a much better visual result, but implies more CPU consumption and memory when drawing.

The increase in memory consumption is (24 bits * object's width)

config LV_DISP_ROT_MAX_BUF

int "Maximum buffer size to allocate for rotation"

default 10240

help

Only used if software rotation is enabled in the display driver.

endmenu

menu "GPU"

config LV_USE_GPU_ARM2D

bool "Enable Arm's 2D image processing library (Arm-2D) for all Cortex-M processors."

default n

help

Must deploy arm-2d library to your project and add include PATH for "arm_2d.h".

config LV_USE_GPU_STM32_DMA2D

bool "Enable STM32 DMA2D (aka Chrom Art) GPU."

config LV_GPU_DMA2D_CMSIS_INCLUDE

string "include path of CMSIS header of target processor"

depends on LV_USE_GPU_STM32_DMA2D

default ""

help

Must be defined to include path of CMSIS header of target processor

e.g. "stm32f769xx.h" or "stm32f429xx.h"

config LV_USE_GPU_RA6M3_G2D

bool "Enable RA6M3 G2D GPU."

config LV_GPU_RA6M3_G2D_INCLUDE

string "include path of target processor"

depends on LV_USE_GPU_RA6M3_G2D

default "hal_data.h"

help

Must be defined to include path of target processor

e.g. "hal_data.h"

config LV_USE_GPU_SWM341_DMA2D

bool "Enable SWM341 DMA2D GPU."

config LV_GPU_SWM341_DMA2D_INCLUDE

string "include path of CMSIS header of target processor"

depends on LV_USE_GPU_SWM341_DMA2D

default "SWM341.h"

help

Must be defined to include path of CMSIS header of target processor

e.g. "SWM341.h"

config LV_USE_GPU_NXP_PXP

bool "Use NXP's PXP GPU iMX RTxxx platforms."

config LV_USE_GPU_NXP_PXP_AUTO_INIT

bool "Call lv_gpu_nxp_pxp_init() automatically or manually."

depends on LV_USE_GPU_NXP_PXP

help

1: Add default bare metal and FreeRTOS interrupt handling

routines for PXP (lv_gpu_nxp_pxp_osa.c) and call

lv_gpu_nxp_pxp_init() automatically during lv_init().

Note that symbol SDK_OS_FREE_RTOS has to be defined in order

to use FreeRTOS OSA, otherwise bare-metal implementation is

selected.

0: lv_gpu_nxp_pxp_init() has to be called manually before

lv_init().

config LV_USE_GPU_NXP_VG_LITE

bool "Use NXP's VG-Lite GPU iMX RTxxx platforms."

config LV_USE_GPU_SDL

bool "Use SDL renderer API"

default n

config LV_GPU_SDL_INCLUDE_PATH

string "include path of SDL header"

depends on LV_USE_GPU_SDL

default "SDL2/SDL.h"

config LV_GPU_SDL_LRU_SIZE

int "Maximum buffer size to allocate for rotation"

depends on LV_USE_GPU_SDL

default 8388608

help

Texture cache size, 8MB by default.

endmenu

menu "Logging"

config LV_USE_LOG

bool "Enable the log module"

choice

bool "Default log verbosity" if LV_USE_LOG

default LV_LOG_LEVEL_WARN

help

Specify how important log should be added.

config LV_LOG_LEVEL_TRACE

bool "A lot of logs to give detailed information"

config LV_LOG_LEVEL_INFO

bool "Log important events"

config LV_LOG_LEVEL_WARN

bool "Log if something unwanted happened but didn't cause a problem"

config LV_LOG_LEVEL_ERROR

bool "Only critical issues, when the system may fail"

config LV_LOG_LEVEL_USER

bool "Only logs added by the user"

config LV_LOG_LEVEL_NONE

bool "Do not log anything"

endchoice

config LV_LOG_LEVEL

int

default 0 if LV_LOG_LEVEL_TRACE

default 1 if LV_LOG_LEVEL_INFO

default 2 if LV_LOG_LEVEL_WARN

default 3 if LV_LOG_LEVEL_ERROR

default 4 if LV_LOG_LEVEL_USER

default 5 if LV_LOG_LEVEL_NONE

config LV_LOG_PRINTF

bool "Print the log with 'printf'" if LV_USE_LOG

help

Use printf for log output.

If not set the user needs to register a callback with `lv_log_register_print_cb`.

config LV_LOG_TRACE_MEM

bool "Enable/Disable LV_LOG_TRACE in mem module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_TIMER

bool "Enable/Disable LV_LOG_TRACE in timer module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_INDEV

bool "Enable/Disable LV_LOG_TRACE in indev module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_DISP_REFR

bool "Enable/Disable LV_LOG_TRACE in disp refr module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_EVENT

bool "Enable/Disable LV_LOG_TRACE in event module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_OBJ_CREATE

bool "Enable/Disable LV_LOG_TRACE in obj create module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_LAYOUT

bool "Enable/Disable LV_LOG_TRACE in layout module"

default y

depends on LV_USE_LOG

config LV_LOG_TRACE_ANIM

bool "Enable/Disable LV_LOG_TRACE in anim module"

default y

depends on LV_USE_LOG

endmenu

menu "Asserts"

config LV_USE_ASSERT_NULL

bool "Check if the parameter is NULL. (Very fast, recommended)"

default y if !LV_CONF_MINIMAL

config LV_USE_ASSERT_MALLOC

bool "Checks if the memory is successfully allocated or no. (Very fast, recommended)"

default y if !LV_CONF_MINIMAL

config LV_USE_ASSERT_STYLE

bool "Check if the styles are properly initialized. (Very fast, recommended)"

config LV_USE_ASSERT_MEM_INTEGRITY

bool "Check the integrity of `lv_mem` after critical operations. (Slow)"

config LV_USE_ASSERT_OBJ

bool "Check NULL, the object's type and existence (e.g. not deleted). (Slow)."

config LV_ASSERT_HANDLER_INCLUDE

string "Header to include for the custom assert function"

default "assert.h"

endmenu

menu "Others"

config LV_USE_PERF_MONITOR

bool "Show CPU usage and FPS count."

choice

prompt "Performance monitor position."

depends on LV_USE_PERF_MONITOR

default LV_PERF_MONITOR_ALIGN_BOTTOM_RIGHT

config LV_PERF_MONITOR_ALIGN_TOP_LEFT

bool "Top left"

config LV_PERF_MONITOR_ALIGN_TOP_MID

bool "Top middle"

config LV_PERF_MONITOR_ALIGN_TOP_RIGHT

bool "Top right"

config LV_PERF_MONITOR_ALIGN_BOTTOM_LEFT

bool "Bottom left"

config LV_PERF_MONITOR_ALIGN_BOTTOM_MID

bool "Bottom middle"

config LV_PERF_MONITOR_ALIGN_BOTTOM_RIGHT

bool "Bottom right"

config LV_PERF_MONITOR_ALIGN_LEFT_MID

bool "Left middle"

config LV_PERF_MONITOR_ALIGN_RIGHT_MID

bool "Right middle"

config LV_PERF_MONITOR_ALIGN_CENTER

bool "Center"

endchoice

config LV_USE_MEM_MONITOR

bool "Show the used memory and the memory fragmentation."

depends on !LV_MEM_CUSTOM

choice

prompt "Memory monitor position."

depends on LV_USE_MEM_MONITOR

default LV_MEM_MONITOR_ALIGN_BOTTOM_LEFT

config LV_MEM_MONITOR_ALIGN_TOP_LEFT

bool "Top left"

config LV_MEM_MONITOR_ALIGN_TOP_MID

bool "Top middle"

config LV_MEM_MONITOR_ALIGN_TOP_RIGHT

bool "Top right"

config LV_MEM_MONITOR_ALIGN_BOTTOM_LEFT

bool "Bottom left"

config LV_MEM_MONITOR_ALIGN_BOTTOM_MID

bool "Bottom middle"

config LV_MEM_MONITOR_ALIGN_BOTTOM_RIGHT

bool "Bottom right"

config LV_MEM_MONITOR_ALIGN_LEFT_MID

bool "Left middle"

config LV_MEM_MONITOR_ALIGN_RIGHT_MID

bool "Right middle"

config LV_MEM_MONITOR_ALIGN_CENTER

bool "Center"

endchoice

config LV_USE_REFR_DEBUG

bool "Draw random colored rectangles over the redrawn areas."

config LV_SPRINTF_CUSTOM

bool "Change the built-in (v)snprintf functions"

config LV_SPRINTF_INCLUDE

string "Header to include for the custom sprintf function"

depends on LV_SPRINTF_CUSTOM

default "stdio.h"

config LV_SPRINTF_USE_FLOAT

bool "Enable float in built-in (v)snprintf functions"

depends on !LV_SPRINTF_CUSTOM

config LV_USE_USER_DATA

bool "Add a 'user_data' to drivers and objects."

default y

config LV_ENABLE_GC

bool "Enable garbage collector"

config LV_GC_INCLUDE

string "Header to include for the garbage collector related things"

depends on LV_ENABLE_GC

default "gc.h"

endmenu

menu "Compiler settings"

config LV_BIG_ENDIAN_SYSTEM

bool "For big endian systems set to 1"

config LV_ATTRIBUTE_MEM_ALIGN_SIZE

int "Required alignment size for buffers"

default 1

config LV_ATTRIBUTE_FAST_MEM_USE_IRAM

bool "Set IRAM as LV_ATTRIBUTE_FAST_MEM"

help

Set this option to configure IRAM as LV_ATTRIBUTE_FAST_MEM

config LV_USE_LARGE_COORD

bool "Extend the default -32k..32k coordinate range to -4M..4M by using int32_t for coordinates instead of int16_t"

endmenu

endmenu

menu "Font usage"

menu "Enable built-in fonts"

config LV_FONT_MONTSERRAT_8

bool "Enable Montserrat 8"

config LV_FONT_MONTSERRAT_10

bool "Enable Montserrat 10"

config LV_FONT_MONTSERRAT_12

bool "Enable Montserrat 12"

config LV_FONT_MONTSERRAT_14

bool "Enable Montserrat 14"

default y if !LV_CONF_MINIMAL

config LV_FONT_MONTSERRAT_16

bool "Enable Montserrat 16"

config LV_FONT_MONTSERRAT_18

bool "Enable Montserrat 18"

config LV_FONT_MONTSERRAT_20

bool "Enable Montserrat 20"

config LV_FONT_MONTSERRAT_22

bool "Enable Montserrat 22"

config LV_FONT_MONTSERRAT_24

bool "Enable Montserrat 24"

config LV_FONT_MONTSERRAT_26

bool "Enable Montserrat 26"

config LV_FONT_MONTSERRAT_28

bool "Enable Montserrat 28"

config LV_FONT_MONTSERRAT_30

bool "Enable Montserrat 30"

config LV_FONT_MONTSERRAT_32

bool "Enable Montserrat 32"

config LV_FONT_MONTSERRAT_34

bool "Enable Montserrat 34"

config LV_FONT_MONTSERRAT_36

bool "Enable Montserrat 36"

config LV_FONT_MONTSERRAT_38

bool "Enable Montserrat 38"

config LV_FONT_MONTSERRAT_40

bool "Enable Montserrat 40"

config LV_FONT_MONTSERRAT_42

bool "Enable Montserrat 42"

config LV_FONT_MONTSERRAT_44

bool "Enable Montserrat 44"

config LV_FONT_MONTSERRAT_46

bool "Enable Montserrat 46"

config LV_FONT_MONTSERRAT_48

bool "Enable Montserrat 48"

config LV_FONT_MONTSERRAT_12_SUBPX

bool "Enable Montserrat 12 sub-pixel"

config LV_FONT_MONTSERRAT_28_COMPRESSED

bool "Enable Montserrat 28 compressed"

config LV_FONT_DEJAVU_16_PERSIAN_HEBREW

bool "Enable Dejavu 16 Persian, Hebrew, Arabic letters"

config LV_FONT_SIMSUN_16_CJK

bool "Enable Simsun 16 CJK"

config LV_FONT_UNSCII_8

bool "Enable UNSCII 8 (Perfect monospace font)"

default y if LV_CONF_MINIMAL

config LV_FONT_UNSCII_16

bool "Enable UNSCII 16 (Perfect monospace font)"

config LV_FONT_CUSTOM

bool "Enable the custom font"

config LV_FONT_CUSTOM_DECLARE

string "Header to include for the custom font"

depends on LV_FONT_CUSTOM

endmenu

choice LV_FONT_DEFAULT

prompt "Select theme default title font"

default LV_FONT_DEFAULT_MONTSERRAT_14 if !LV_CONF_MINIMAL

default LV_FONT_DEFAULT_UNSCII_8 if LV_CONF_MINIMAL

help

Select theme default title font

config LV_FONT_DEFAULT_MONTSERRAT_8

bool "Montserrat 8"

select LV_FONT_MONTSERRAT_8

config LV_FONT_DEFAULT_MONTSERRAT_12

bool "Montserrat 12"

select LV_FONT_MONTSERRAT_12

config LV_FONT_DEFAULT_MONTSERRAT_14

bool "Montserrat 14"

select LV_FONT_MONTSERRAT_14

config LV_FONT_DEFAULT_MONTSERRAT_16

bool "Montserrat 16"

select LV_FONT_MONTSERRAT_16

config LV_FONT_DEFAULT_MONTSERRAT_18

bool "Montserrat 18"

select LV_FONT_MONTSERRAT_18

config LV_FONT_DEFAULT_MONTSERRAT_20

bool "Montserrat 20"

select LV_FONT_MONTSERRAT_20

config LV_FONT_DEFAULT_MONTSERRAT_22

bool "Montserrat 22"

select LV_FONT_MONTSERRAT_22

config LV_FONT_DEFAULT_MONTSERRAT_24

bool "Montserrat 24"

select LV_FONT_MONTSERRAT_24

config LV_FONT_DEFAULT_MONTSERRAT_26

bool "Montserrat 26"

select LV_FONT_MONTSERRAT_26

config LV_FONT_DEFAULT_MONTSERRAT_28

bool "Montserrat 28"

select LV_FONT_MONTSERRAT_28

config LV_FONT_DEFAULT_MONTSERRAT_30

bool "Montserrat 30"

select LV_FONT_MONTSERRAT_30

config LV_FONT_DEFAULT_MONTSERRAT_32

bool "Montserrat 32"

select LV_FONT_MONTSERRAT_32

config LV_FONT_DEFAULT_MONTSERRAT_34

bool "Montserrat 34"

select LV_FONT_MONTSERRAT_34

config LV_FONT_DEFAULT_MONTSERRAT_36

bool "Montserrat 36"

select LV_FONT_MONTSERRAT_36

config LV_FONT_DEFAULT_MONTSERRAT_38

bool "Montserrat 38"

select LV_FONT_MONTSERRAT_38

config LV_FONT_DEFAULT_MONTSERRAT_40

bool "Montserrat 40"

select LV_FONT_MONTSERRAT_40

config LV_FONT_DEFAULT_MONTSERRAT_42

bool "Montserrat 42"

select LV_FONT_MONTSERRAT_42

config LV_FONT_DEFAULT_MONTSERRAT_44

bool "Montserrat 44"

select LV_FONT_MONTSERRAT_44

config LV_FONT_DEFAULT_MONTSERRAT_46

bool "Montserrat 46"

select LV_FONT_MONTSERRAT_46

config LV_FONT_DEFAULT_MONTSERRAT_48

bool "Montserrat 48"

select LV_FONT_MONTSERRAT_48

config LV_FONT_DEFAULT_MONTSERRAT_12_SUBPX

bool "Montserrat 12 sub-pixel"

select LV_FONT_MONTSERRAT_12_SUBPX

config LV_FONT_DEFAULT_MONTSERRAT_28_COMPRESSED

bool "Montserrat 28 compressed"

select LV_FONT_MONTSERRAT_28_COMPRESSED

config LV_FONT_DEFAULT_DEJAVU_16_PERSIAN_HEBREW

bool "Dejavu 16 Persian, Hebrew, Arabic letters"

select LV_FONT_DEJAVU_16_PERSIAN_HEBREW

config LV_FONT_DEFAULT_SIMSUN_16_CJK

bool "Simsun 16 CJK"

select LV_FONT_SIMSUN_16_CJK

config LV_FONT_DEFAULT_UNSCII_8

bool "UNSCII 8 (Perfect monospace font)"

select LV_FONT_UNSCII_8

config LV_FONT_DEFAULT_UNSCII_16

bool "UNSCII 16 (Perfect monospace font)"

select LV_FONT_UNSCII_16

endchoice

config LV_FONT_FMT_TXT_LARGE

bool "Enable it if you have fonts with a lot of characters."

help

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.

config LV_USE_FONT_COMPRESSED

bool "Sets support for compressed fonts."

config LV_USE_FONT_SUBPX

bool "Enable subpixel rendering."

config LV_FONT_SUBPX_BGR

bool "Use BGR instead RGB for sub-pixel rendering."

depends on LV_USE_FONT_SUBPX

help

Set the pixel order of the display.

Important only if "subpx fonts" are used.

With "normal" font it doesn't matter.

config LV_USE_FONT_PLACEHOLDER

bool "Enable drawing placeholders when glyph dsc is not found."

default y

endmenu

menu "Text Settings"

choice LV_TXT_ENC

prompt "Select a character encoding for strings"

help

Select a character encoding for strings. Your IDE or editor should have the same character encoding.

default LV_TXT_ENC_UTF8 if !LV_CONF_MINIMAL

default LV_TXT_ENC_ASCII if LV_CONF_MINIMAL

config LV_TXT_ENC_UTF8

bool "UTF8"

config LV_TXT_ENC_ASCII

bool "ASCII"

endchoice

config LV_TXT_BREAK_CHARS

string "Can break (wrap) texts on these chars"

default " ,.;:-_"

config LV_TXT_LINE_BREAK_LONG_LEN

int "Line break long length"

default 0

help

If a word is at least this long, will break wherever 'prettiest'.

To disable, set to a value <= 0.

config LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN

int "Min num chars before break"

default 3

depends on LV_TXT_LINE_BREAK_LONG_LEN > 0

help

Minimum number of characters in a long word to put on a line before a break.

config LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN

int "Min num chars after break"

default 3

depends on LV_TXT_LINE_BREAK_LONG_LEN > 0

help

Minimum number of characters in a long word to put on a line after a break.

config LV_TXT_COLOR_CMD

string "The control character to use for signalling text recoloring"

default "#"

config LV_USE_BIDI

bool "Support bidirectional texts"

help

Allows mixing Left-to-Right and Right-to-Left texts.

The direction will be processed according to the Unicode Bidirectional Algorithm:

https://www.w3.org/International/articles/inline-bidi-markup/uba-basics

choice

prompt "Set the default BIDI direction"

default LV_BIDI_DIR_AUTO

depends on LV_USE_BIDI

config LV_BIDI_DIR_LTR

bool "Left-to-Right"

config LV_BIDI_DIR_RTL

bool "Right-to-Left"

config LV_BIDI_DIR_AUTO

bool "Detect texts base direction"

endchoice

config LV_USE_ARABIC_PERSIAN_CHARS

bool "Enable Arabic/Persian processing"

help

In these languages characters should be replaced with

an other form based on their position in the text.

endmenu

menu "Widget usage"

config LV_USE_ARC

bool "Arc."

default y if !LV_CONF_MINIMAL

config LV_USE_BAR

bool "Bar."

default y if !LV_CONF_MINIMAL

config LV_USE_BTN

bool "Button."

default y if !LV_CONF_MINIMAL

config LV_USE_BTNMATRIX

bool "Button matrix."

default y if !LV_CONF_MINIMAL

config LV_USE_CANVAS

bool "Canvas. Dependencies: lv_img."

select LV_USE_IMG

default y if !LV_CONF_MINIMAL

config LV_USE_CHECKBOX

bool "Check Box"

default y if !LV_CONF_MINIMAL

config LV_USE_DROPDOWN

bool "Drop down list. Requires: lv_label."

select LV_USE_LABEL

default y if !LV_CONF_MINIMAL

config LV_USE_IMG

bool "Image. Requires: lv_label."

select LV_USE_LABEL

default y if !LV_CONF_MINIMAL

config LV_USE_LABEL

bool "Label."

default y if !LV_CONF_MINIMAL

config LV_LABEL_TEXT_SELECTION

bool "Enable selecting text of the label."

depends on LV_USE_LABEL

default y

config LV_LABEL_LONG_TXT_HINT

bool "Store extra some info in labels (12 bytes) to speed up drawing of very long texts."

depends on LV_USE_LABEL

default y

config LV_USE_LINE

bool "Line."

default y if !LV_CONF_MINIMAL

config LV_USE_ROLLER

bool "Roller. Requires: lv_label."

select LV_USE_LABEL

default y if !LV_CONF_MINIMAL

config LV_ROLLER_INF_PAGES

int "Number of extra 'pages' when the controller is infinite."

default 7

depends on LV_USE_ROLLER

config LV_USE_SLIDER

bool "Slider. Requires: lv_bar."

select LV_USE_BAR

default y if !LV_CONF_MINIMAL

config LV_USE_SWITCH

bool "Switch."

default y if !LV_CONF_MINIMAL

config LV_USE_TEXTAREA

bool "Text area. Requires: lv_label."

select LV_USE_LABEL

default y if !LV_CONF_MINIMAL

config LV_TEXTAREA_DEF_PWD_SHOW_TIME

int "Text area def. pwd show time [ms]."

default 1500

depends on LV_USE_TEXTAREA

config LV_USE_TABLE

bool "Table."

default y if !LV_CONF_MINIMAL

endmenu

menu "Extra Widgets"

config LV_USE_ANIMIMG

bool "Anim image."

default y if !LV_CONF_MINIMAL

config LV_USE_CALENDAR

bool "Calendar."

default y if !LV_CONF_MINIMAL

config LV_CALENDAR_WEEK_STARTS_MONDAY

bool "Calendar week starts monday."

depends on LV_USE_CALENDAR

config LV_USE_CALENDAR_HEADER_ARROW

bool "Use calendar header arrow"

depends on LV_USE_CALENDAR

default y

config LV_USE_CALENDAR_HEADER_DROPDOWN

bool "Use calendar header dropdown"

depends on LV_USE_CALENDAR

default y

config LV_USE_CHART

bool "Chart."

default y if !LV_CONF_MINIMAL

config LV_USE_COLORWHEEL

bool "Colorwheel."

default y if !LV_CONF_MINIMAL

config LV_USE_IMGBTN

bool "Imgbtn."

default y if !LV_CONF_MINIMAL

config LV_USE_KEYBOARD

bool "Keyboard."

default y if !LV_CONF_MINIMAL

config LV_USE_LED

bool "LED."

default y if !LV_CONF_MINIMAL

config LV_USE_LIST

bool "List."

default y if !LV_CONF_MINIMAL

config LV_USE_MENU

bool "Menu."

default y if !LV_CONF_MINIMAL

config LV_USE_METER

bool "Meter."

default y if !LV_CONF_MINIMAL

config LV_USE_MSGBOX

bool "Msgbox."

default y if !LV_CONF_MINIMAL

config LV_USE_SPAN

bool "span"

default y if !LV_CONF_MINIMAL

config LV_SPAN_SNIPPET_STACK_SIZE

int "Maximum number of span descriptor"

default 64

depends on LV_USE_SPAN

config LV_USE_SPINBOX

bool "Spinbox."

default y if !LV_CONF_MINIMAL

config LV_USE_SPINNER

bool "Spinner."

default y if !LV_CONF_MINIMAL

config LV_USE_TABVIEW

bool "Tabview."

default y if !LV_CONF_MINIMAL

config LV_USE_TILEVIEW

bool "Tileview"

default y if !LV_CONF_MINIMAL

config LV_USE_WIN

bool "Win"

default y if !LV_CONF_MINIMAL

endmenu

menu "Themes"

config LV_USE_THEME_DEFAULT

bool "A simple, impressive and very complete theme"

default y if !LV_COLOR_DEPTH_1 && !LV_CONF_MINIMAL

config LV_THEME_DEFAULT_DARK

bool "Yes to set dark mode, No to set light mode"

depends on LV_USE_THEME_DEFAULT

config LV_THEME_DEFAULT_GROW

bool "Enable grow on press"

default y

depends on LV_USE_THEME_DEFAULT

config LV_THEME_DEFAULT_TRANSITION_TIME

int "Default transition time in [ms]"

default 80

depends on LV_USE_THEME_DEFAULT

config LV_USE_THEME_BASIC

bool "A very simple theme that is a good starting point for a custom theme"

default y if !LV_COLOR_DEPTH_1 && !LV_CONF_MINIMAL

config LV_USE_THEME_MONO

bool "Monochrome theme, suitable for some E-paper & dot matrix displays"

default y if LV_COLOR_DEPTH_1 && !LV_CONF_MINIMAL

endmenu

menu "Layouts"

config LV_USE_FLEX

bool "A layout similar to Flexbox in CSS."

default y if !LV_CONF_MINIMAL

config LV_USE_GRID

bool "A layout similar to Grid in CSS."

default y if !LV_CONF_MINIMAL

endmenu

menu "3rd Party Libraries"

config LV_USE_FS_STDIO

bool "File system on top of stdio API"

config LV_FS_STDIO_LETTER

int "Set an upper cased letter on which the drive will accessible (e.g. 'A' i.e. 65 )"

default 0

depends on LV_USE_FS_STDIO

config LV_FS_STDIO_PATH

string "Set the working directory"

depends on LV_USE_FS_STDIO

config LV_FS_STDIO_CACHE_SIZE

int ">0 to cache this number of bytes in lv_fs_read()"

default 0

depends on LV_USE_FS_STDIO

config LV_USE_FS_POSIX

bool "File system on top of posix API"

config LV_FS_POSIX_LETTER

int "Set an upper cased letter on which the drive will accessible (e.g. 'A' i.e. 65)"

default 0

depends on LV_USE_FS_POSIX

config LV_FS_POSIX_PATH

string "Set the working directory"

depends on LV_USE_FS_POSIX

config LV_FS_POSIX_CACHE_SIZE

int ">0 to cache this number of bytes in lv_fs_read()"

default 0

depends on LV_USE_FS_POSIX

config LV_USE_FS_WIN32

bool "File system on top of Win32 API"

config LV_FS_WIN32_LETTER

int "Set an upper cased letter on which the drive will accessible (e.g. 'A' i.e. 65)"

default 0

depends on LV_USE_FS_WIN32

config LV_FS_WIN32_PATH

string "Set the working directory"

depends on LV_USE_FS_WIN32

config LV_FS_WIN32_CACHE_SIZE

int ">0 to cache this number of bytes in lv_fs_read()"

default 0

depends on LV_USE_FS_WIN32

config LV_USE_FS_FATFS

bool "File system on top of FatFS"

config LV_FS_FATFS_LETTER

int "Set an upper cased letter on which the drive will accessible (e.g. 'A' i.e. 65)"

default 0

depends on LV_USE_FS_FATFS

config LV_FS_FATFS_CACHE_SIZE

int ">0 to cache this number of bytes in lv_fs_read()"

default 0

depends on LV_USE_FS_FATFS

config LV_USE_FS_LITTLEFS

bool "File system on top of LittleFS"

config LV_FS_LITTLEFS_LETTER

int "Set an upper cased letter on which the drive will accessible (e.g. 'A' i.e. 65)"

default 0

depends on LV_USE_FS_LITTLEFS

config LV_FS_LITTLEFS_CACHE_SIZE

int ">0 to cache this number of bytes in lv_fs_read()"

default 0

depends on LV_USE_FS_LITTLEFS

config LV_USE_PNG

bool "PNG decoder library"

config LV_USE_BMP

bool "BMP decoder library"

config LV_USE_SJPG

bool "JPG + split JPG decoder library"

config LV_USE_GIF

bool "GIF decoder library"

config LV_USE_QRCODE

bool "QR code library"

config LV_USE_FREETYPE

bool "FreeType library"

if LV_USE_FREETYPE

menu "FreeType cache config"

config LV_FREETYPE_CACHE_SIZE

int "Memory used by FreeType to cache characters [bytes] (-1: no caching)"

default 16384

if LV_FREETYPE_CACHE_SIZE >= 0