QR Code¶

QR Code generation either with the included QRCodeRect node or use the encoding result of the QRCode class.

Compatibility¶

Godot	Version
4.3	>= 1.1.0
4.2	>= 1.1.0
4.1	<= 1.0.0

Screenshot¶

QRCodeRect node inspector screenshot

Example¶

/examples/qr_code/

Interface¶

QRCodeRect¶

extendsTextureRect

res://addons/qr_code/qr_code_rect.gd

TextureRect like node. The texture is updated by itself. When using byte encoding you can also pass strings for specific ECI values (ISO 8859-1, Shift JIS, UTF-8, UTF-16, US ASCII), the input string will be automatically converted to an byte array.

Properties¶

Name	Type	Description
mode	QRCode.Mode	QR Code mode
error_correction	QRCode.ErrorCorrection	Error correction value.
use_eci	String	Use Extended Channel Interpretation (ECI)
eci_value	String	Extended Channel Interpretation (ECI) Value
data	Variant	Type varies based on the encoding mode.
auto_version	bool	Use automatically the smallest QR Code version.
version	int	QR Code version (size).
auto_mask_pattern	bool	Use automatically the best mask pattern.
mask_pattern	int	QR Code mask pattern.
light_module_color	Color	Color of the light modules.
dark_module_color	Color	Color of the dark modules.
auto_module_px_size	bool	Automatically set the module pixel size based on the size. Do not use expand mode `KEEP_SIZE` when using it. Turn this off when the QR Code changes or is resized often, as it impacts the performance quite heavily.
module_px_size	int	Use that many pixel for one module.
quiet_zone_size	int	Use that many modules for the quiet zone. A value of 4 is recommended.

QRCode¶

extendsRefCounted

res://addons/qr_code/qr_code.gd

QRCode class to generate QR Codes.

Properties¶

Name	Type	Description
mode	QRCode.Mode	QR Code mode.
error_correction	QRCode.ErrorCorrection	Error correction value.
use_eci	String	Use Extended Channel Interpretation (ECI)
eci_value	String	Extended Channel Interpretation (ECI) Value
auto_version	bool	Use automatically the smallest QR Code version.
version	int	QR Code version (size).
auto_mask_pattern	bool	Use automatically the best mask pattern.
mask_pattern	int	QR Code mask pattern.

Methods¶

int get_module_count () const: Return the module count per side.
int calc_min_version () const: Return the minimal version required to encode the data.
Image generate_image ( int module_px_size=1, Color light_module_color=Color.WHITE, Color dark_module_color=Color.BLACK ): Generate an image. This method can be called repeatedly, as encoding will only happens once and the result is cached.
void put_numeric ( String number ): Put a numeric text. Invalid characters are removed. Will change the encoding mode to Mode.NUMERIC.
void put_alphanumeric ( String text ): Put a alphanumeric text. Invalid characters are removed. Will change the encoding mode to Mode.ALPHANUMERIC.
void put_byte ( PackedByteArray data ): Put a bytes. Will change the encoding mode to Mode.BYTE.
void put_kanji ( String data ): Put a kanji text. Invalid characters are removed. Will change the encoding mode to Mode.KANJI.
PackedByteArray encode (): Get the QR Code row by row in one array. To get the row size use get_module_count.

QRCode.Mode¶

res://addons/qr_code/qr_code.gd

Encoding mode enum.

Name	Value
NUMERIC	1
ALPHANUMERIC	2
BYTE	4
KANJI	8

QRCode.ErrorCorrection¶

res://addons/qr_code/qr_code.gd

Error correction enum.

Name	Value
LOW	1
MEDIUM	0
QUARTILE	3
HIGH	2

QRCode.ECI¶

res://addons/qr_code/qr_code.gd

ECI values. See source code for available values.

ShiftJIS¶

res://addons/qr_code/shift_jis.gd

Shift JIS encoding utility.

Methods¶

PackedByteArray to_shift_jis_2004_buffer ( String text ) -> PackedByteArray` static: Convert text to Shift JIS 2004 encoded bytes. Returns u16 int array. Unknown characters are skipped.
String get_string_from_shift_jis_2004 ( PackedByteArray arr ) static: Get text from Shift JIS 2004 encoded bytes. Requires an u16 int array. Unknown characters are skipped.
PackedByteArray to_jis_8_buffer ( String text ) static: Convert text to JIS 8 encoded bytes. Returns u8 int array. Unknown characters are skipped.
String get_string_from_jis_8 ( PackedByteArray arr ) static: Get text from JIS 8 encoded bytes. Requires an u8 int array. Unknown characters are skipped.

Changelog¶

1.1.3¶

Code improvements

1.1.2¶

Use absolute paths in preloads

1.1.1¶

Code optimizing

1.1.0¶

Require Godot 4.2
Add more values to plugin.cfg
Add static typing in for loops

1.0.0¶

Renamed get_string_from_jis_2004 to get_string_from_shift_jis_2004

0.3.1¶

Improve inspector properties
Improve input handling of byte data based on ECI usage

0.3.0¶

Make ECI value optional

0.2.0¶

Added quiet zone size property