Documentation

QRFpdf extends QROutputAbstract
in package

QRFpdf output module (requires fpdf)

Tags
see
https://github.com/Setasign/FPDF
see
http://www.fpdf.org/

Table of Contents

Properties

$fpdf  : FPDF
$length  : int
the side length of the QR image (modules * scale)
$matrix  : QRMatrix
the (filled) data matrix object
$moduleCount  : int
the current size of the QR matrix
$moduleValues  : array<string|int, mixed>
an (optional) array of color values for the several QR matrix parts
$options  : SettingsContainerInterface|QROptions
$prevColor  : array<string|int, mixed>|null
$scale  : int
the current scaling for a QR pixel

Methods

__construct()  : mixed
QRFpdf constructor.
dump()  : string|FPDF
moduleValueIsValid()  : bool
collectModules()  : array<string|int, mixed>
collects the modules per QRMatrix::M_* type and runs a $transform function on each module and returns an array with the transformed modules
getDefaultModuleValue()  : mixed|null
Returns a default value for either dark or light modules
getModuleValue()  : mixed|null
Returns the prepared value for the given $M_TYPE
getModuleValueAt()  : mixed|null
Returns the prepared module value at the given coordinate [$x, $y] (convenience)
getOutputDimensions()  : array<string|int, mixed>
Returns a 2 element array with the current output width and height
initFPDF()  : FPDF
Initializes an FPDF instance
module()  : void
Renders a single module
prepareModuleValue()  : mixed|null
Prepares the value for the given input ()
saveToFile()  : void
Saves the qr $data to a $file. If $file is null, nothing happens.
setMatrixDimensions()  : void
Sets/updates the matrix dimensions
setModuleValues()  : void
Sets the initial module values
toBase64DataURI()  : string
Returns a base64 data URI for the given string and mime type

Properties

$length

the side length of the QR image (modules * scale)

protected int $length

$moduleValues

an (optional) array of color values for the several QR matrix parts

protected array<string|int, mixed> $moduleValues

$prevColor

protected array<string|int, mixed>|null $prevColor = null

$scale

the current scaling for a QR pixel

protected int $scale
Tags
see
QROptions::$scale

Methods

__construct()

QRFpdf constructor.

public __construct(SettingsContainerInterface $options, QRMatrix $matrix) : mixed
Parameters
$options : SettingsContainerInterface
$matrix : QRMatrix
Tags
throws
QRCodeOutputException

dump()

public dump([string $file = null ]) : string|FPDF
Parameters
$file : string = null
Tags
inheritDoc
Return values
string|FPDF

moduleValueIsValid()

public static moduleValueIsValid(mixed $value) : bool
Parameters
$value : mixed
Tags
inheritDoc
Return values
bool

collectModules()

collects the modules per QRMatrix::M_* type and runs a $transform function on each module and returns an array with the transformed modules

protected collectModules(Closure $transform) : array<string|int, mixed>

The transform callback is called with the following parameters:

$x - current column $y - current row $M_TYPE - field value $M_TYPE_LAYER - (possibly modified) field value that acts as layer id

Parameters
$transform : Closure
Return values
array<string|int, mixed>

getDefaultModuleValue()

Returns a default value for either dark or light modules

protected getDefaultModuleValue(bool $isDark) : mixed|null
Parameters
$isDark : bool
Tags
inheritDoc
Return values
mixed|null —

return value depends on the output class

getModuleValue()

Returns the prepared value for the given $M_TYPE

protected getModuleValue(int $M_TYPE) : mixed|null
Parameters
$M_TYPE : int
Tags
throws
QRCodeOutputException
Return values
mixed|null —

return value depends on the output class, null if $moduleValues[$M_TYPE] doesn't exist

getModuleValueAt()

Returns the prepared module value at the given coordinate [$x, $y] (convenience)

protected getModuleValueAt(int $x, int $y) : mixed|null
Parameters
$x : int
$y : int
Return values
mixed|null

getOutputDimensions()

Returns a 2 element array with the current output width and height

protected getOutputDimensions() : array<string|int, mixed>

The type and units of the values depend on the output class. The default value is the current module count * scale.

Return values
array<string|int, mixed>

initFPDF()

Initializes an FPDF instance

protected initFPDF() : FPDF
Return values
FPDF

module()

Renders a single module

protected module(int $x, int $y, int $M_TYPE) : void
Parameters
$x : int
$y : int
$M_TYPE : int

prepareModuleValue()

Prepares the value for the given input ()

protected prepareModuleValue(array<string|int, mixed> $value) : mixed|null
Parameters
$value : array<string|int, mixed>
Tags
inheritDoc
throws
QRCodeOutputException
Return values
mixed|null —

return value depends on the output class

saveToFile()

Saves the qr $data to a $file. If $file is null, nothing happens.

protected saveToFile(string $data[, string $file = null ]) : void
Parameters
$data : string
$file : string = null
Tags
see
file_put_contents()
see
QROptions::$cachefile
throws
QRCodeOutputException

setMatrixDimensions()

Sets/updates the matrix dimensions

protected setMatrixDimensions() : void

Call this method if you modify the matrix from within your custom module in case the dimensions have been changed

setModuleValues()

Sets the initial module values

protected setModuleValues() : void

toBase64DataURI()

Returns a base64 data URI for the given string and mime type

protected toBase64DataURI(string $data, string $mime) : string
Parameters
$data : string
$mime : string
Return values
string 

        

        
    




    

    

                                

                

                                
    

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