SvgImageBackEnd.md

---

SvgImageBackEnd

• Full name: \BaconQrCode\Renderer\Image\SvgImageBackEnd
• This class is marked as final and can't be subclassed
• This class implements: \BaconQrCode\Renderer\Image\ImageBackEndInterface
• This class is a Final class

Constants

Constant	Visibility	Type	Value
PRECISION	private		3

Properties

xmlWriter

private \XMLWriter|null $xmlWriter

---

stack

private int[]|null $stack

---

currentStack

private int|null $currentStack

---

gradientCount

private int|null $gradientCount

---

Methods

__construct

public __construct(): mixed

---

new

Starts a new image.

public new(int $size, \BaconQrCode\Renderer\Color\ColorInterface $backgroundColor): void

If a previous image was already started, previous data get erased.

Parameters:

Parameter	Type	Description
$size	int
$backgroundColor	\BaconQrCode\Renderer\Color\ColorInterface

---

scale

Transforms all following drawing operation coordinates by scaling them by a given factor.

public scale(float $size): void

Parameters:

Parameter	Type	Description
$size	float

---

translate

Transforms all following drawing operation coordinates by translating them by a given amount.

public translate(float $x, float $y): void

Parameters:

Parameter	Type	Description
$x	float
$y	float

---

rotate

Transforms all following drawing operation coordinates by rotating them by a given amount.

public rotate(int $degrees): void

Parameters:

Parameter	Type	Description
$degrees	int

---

push

Pushes the current coordinate transformation onto a stack.

public push(): void

---

pop

Pops the last coordinate transformation from a stack.

public pop(): void

---

drawPathWithColor

Draws a path with a given color.

public drawPathWithColor(\BaconQrCode\Renderer\Path\Path $path, \BaconQrCode\Renderer\Color\ColorInterface $color): void

Parameters:

Parameter	Type	Description
$path	\BaconQrCode\Renderer\Path\Path
$color	\BaconQrCode\Renderer\Color\ColorInterface

---

drawPathWithGradient

Draws a path with a given gradient which spans the box described by the position and size.

public drawPathWithGradient(\BaconQrCode\Renderer\Path\Path $path, \BaconQrCode\Renderer\RendererStyle\Gradient $gradient, float $x, float $y, float $width, float $height): void

Parameters:

Parameter	Type	Description
$path	\BaconQrCode\Renderer\Path\Path
$gradient	\BaconQrCode\Renderer\RendererStyle\Gradient
$x	float
$y	float
$width	float
$height	float

---

done

Ends the image drawing operation and returns the resulting blob.

public done(): string

This should reset the state of the back end and thus this method should only be callable once per image.

---

startPathElement

private startPathElement(\BaconQrCode\Renderer\Path\Path $path): void

Parameters:

Parameter	Type	Description
$path	\BaconQrCode\Renderer\Path\Path

---

createGradientFill

private createGradientFill(\BaconQrCode\Renderer\RendererStyle\Gradient $gradient, float $x, float $y, float $width, float $height): string

Parameters:

Parameter	Type	Description
$gradient	\BaconQrCode\Renderer\RendererStyle\Gradient
$x	float
$y	float
$width	float
$height	float

---

getColorString

private getColorString(\BaconQrCode\Renderer\Color\ColorInterface $color): string

Parameters:

Parameter	Type	Description
$color	\BaconQrCode\Renderer\Color\ColorInterface

---

---