clarify several QROptions: $imageTransparent and $imageTransparencyBG, introduced $drawLightModules and $bgColor (see #122)

Author: codemasher

examples/image.php

@@ -19,6 +19,7 @@
 	'eccLevel'            => EccLevel::L,
 	'scale'               => 10,
 	'imageBase64'         => false,
+	'bgColor'             => [200, 200, 200],
 	'imageTransparent'    => false,
 	'drawCircularModules' => true,
 	'circleRadius'        => 0.4,

examples/imagick.php

@@ -17,8 +17,10 @@
 	'version'             => 7,
 	'outputType'          => QROutputInterface::IMAGICK,
 	'eccLevel'            => EccLevel::L,
-	'imagickBG'           => '#FFFFFF',
+	'bgColor'             => '#cccccc', // overrides the imageTransparent setting
+	'imageTransparent'    => true,
 	'scale'               => 20,
+	'drawLightModules'    => true,
 	'drawCircularModules' => true,
 	'circleRadius'        => 0.4,
 	'keepAsSquare'        => [QRMatrix::M_FINDER|QRMatrix::IS_DARK, QRMatrix::M_FINDER_DOT, QRMatrix::M_ALIGNMENT|QRMatrix::IS_DARK],

examples/svg.php

@@ -22,8 +22,8 @@
 	'imageBase64'         => false,
 	'eccLevel'            => EccLevel::L,
 	'addQuietzone'        => true,
-	// if set to true, the light modules won't be rendered
-	'imageTransparent'    => false,
+	// if set to false, the light modules won't be rendered
+	'drawLightModules'    => true,
 	// empty the default value to remove the fill* attributes from the <path> elements
 	'markupDark'          => '',
 	'markupLight'         => '',

examples/svgRandomColoredDots.php

@@ -124,7 +124,7 @@ class RandomDotsOptions extends QROptions{
 	'outputInterface'     => RandomDotsSVGOutput::class,
 	'markupDark'          => '',
 	'markupLight'         => '',
-	'imageTransparent'    => true,
+	'drawLightModules'    => false,
 
 	'connectPaths'        => true,
 	'excludeFromConnect'  => [

examples/svgRoundQuietzone.php

@@ -174,7 +174,7 @@ class RoundQuietzoneOptions extends QROptions{
 	'outputInterface'     => RoundQuietzoneSVGoutput::class, // load our own output class
 	'markupDark'          => '', // avoid "fill" attributes on paths
 	'markupLight'         => '',
-	'imageTransparent'    => true, // set to false to add the light modules
+	'drawLightModules'    => false, // set to true to add the light modules
 
 	'connectPaths'        => true,
 	'excludeFromConnect'  => [

examples/svgWithLogo.php

@@ -109,7 +109,7 @@ protected function set_svgLogoScale(float $svgLogoScale):void{
 	'eccLevel'            => EccLevel::H,
 	'addQuietzone'        => true,
 	// if set to true, the light modules won't be rendered
-	'imageTransparent'    => false,
+	'drawLightModules'    => true,
 	// empty the default value to remove the fill* attributes from the <path> elements
 	'markupDark'          => '',
 	'markupLight'         => '',

src/Output/QRGdImage.php

@@ -95,14 +95,21 @@ public function dump(string $file = null){
 
 		$this->image = imagecreatetruecolor($this->length, $this->length);
 
-		// avoid: "Indirect modification of overloaded property $imageTransparencyBG has no effect"
+		// avoid: "Indirect modification of overloaded property $x has no effect"
 		// https://stackoverflow.com/a/10455217
-		$tbg        = $this->options->imageTransparencyBG;
+		$bgColor = $this->options->imageTransparencyBG;
+
+		if($this->moduleValueIsValid($this->options->bgColor)){
+			$bgColor = $this->getModuleValue($this->options->bgColor);
+		}
+
 		/** @phan-suppress-next-line PhanParamTooFewInternalUnpack */
-		$background = imagecolorallocate($this->image, ...$tbg);
+		$background = imagecolorallocate($this->image, ...$bgColor);
 
 		if($this->options->imageTransparent && $this->options->outputType !== QROutputInterface::GDIMAGE_JPG){
-			imagecolortransparent($this->image, $background);
+			$tbg = $this->options->imageTransparencyBG;
+			/** @phan-suppress-next-line PhanParamTooFewInternalUnpack */
+			imagecolortransparent($this->image, imagecolorallocate($this->image, ...$tbg));
 		}
 
 		imagefilledrectangle($this->image, 0, 0, $this->length, $this->length, $background);

src/Output/QRImagick.php

@@ -73,14 +73,14 @@ public function dump(string $file = null){
 		$file          ??= $this->options->cachefile;
 		$this->imagick = new Imagick;
 
-		$this->imagick->newImage(
-			$this->length,
-			$this->length,
-			new ImagickPixel($this->options->imagickBG ?? 'transparent'),
-			$this->options->imagickFormat
-		);
+		$bgColor = $this->options->imageTransparent ? 'transparent' : 'white';
 
-		$this->imagick->setImageType(Imagick::IMGTYPE_TRUECOLOR);
+		// keep the imagickBG property for now (until v6)
+		if($this->moduleValueIsValid($this->options->bgColor ?? $this->options->imagickBG)){
+			$bgColor = $this->options->bgColor ?? $this->options->imagickBG;
+		}
+
+		$this->imagick->newImage($this->length, $this->length, new ImagickPixel($bgColor), $this->options->imagickFormat);
 
 		$this->drawImage();
 
@@ -119,6 +119,11 @@ protected function drawImage():void{
 	 * draws a single pixel at the given position
 	 */
 	protected function setPixel(int $x, int $y, int $M_TYPE):void{
+
+		if(!$this->options->drawLightModules && !$this->matrix->check($x, $y)){
+			return;
+		}
+
 		$this->imagickDraw->setFillColor($this->moduleValues[$M_TYPE]);
 
 		$this->options->drawCircularModules && $this->matrix->checkTypeNotIn($x, $y, $this->options->keepAsSquare)

src/Output/QRMarkupSVG.php

@@ -126,7 +126,7 @@ protected function getCssClass(int $M_TYPE):string{
 	 */
 	protected function module(int $x, int $y, int $M_TYPE):string{
 
-		if($this->options->imageTransparent && !$this->matrix->check($x, $y)){
+		if(!$this->options->drawLightModules && !$this->matrix->check($x, $y)){
 			return '';
 		}
 

src/QROptionsTrait.php

@@ -232,32 +232,41 @@ trait QROptionsTrait{
 	/**
 	 * toggle background transparency
 	 *
-	 * - In GdImage mode (png, gif) it sets imagecolortransparent() with QROptions::$imageTransparencyBG.
-	 *   It also sets the "normal" background color without transparency switch.
+	 * - GdImage: (png, gif) it sets imagecolortransparent() with {@see \chillerlan\QRCode\QROptions::$imageTransparencyBG}
 	 *
-	 * - In SVG mode (as of v5), it won't render the "light" modules,
-	 *   as opacity/transparency can easily be set with css properties.
 	 *
-	 * - It has no effect in the FPDF and Imagick output modules.
-	 *
-	 * @see \chillerlan\QRCode\QROptions::$imageTransparencyBG
 	 * @see https://github.com/chillerlan/php-qrcode/discussions/121
  	 */
 	protected bool $imageTransparent = true;
 
 	/**
-	 * Sets the background color in GD mode.
+	 * whether to draw the light (false) modules
+	 *
+	 * @var bool
+	 */
+	protected bool $drawLightModules = true;
+
+	/**
+	 * Sets the background color in GD mode: [R, G, B].
 	 *
-	 * When QROptions::$imageTransparent is set to true, this color is set as transparent in imagecolortransparent()
+	 * When $imageTransparent is set to true, this color is set as transparent in imagecolortransparent()
 	 *
 	 * @see \chillerlan\QRCode\Output\QRGdImage
 	 * @see \chillerlan\QRCode\QROptions::$imageTransparent
 	 * @see imagecolortransparent()
-	 *
-	 * [R, G, B]
 	 */
 	protected array $imageTransparencyBG = [255, 255, 255];
 
+	/**
+	 * Sets the image background color (if applicable)
+	 *
+	 * - Imagick: defaults to "transparent" or "white", depending on $imageTransparent, {@see \ImagickPixel::__construct()}
+	 * - GdImage: defaults to $imageTransparencyBG, {@see \chillerlan\QRCode\QROptions::$imageTransparencyBG}
+	 *
+	 * @var mixed|null
+	 */
+	protected $bgColor = null;
+
 	/**
 	 * @see imagepng()
 	 */
@@ -277,8 +286,10 @@ trait QROptionsTrait{
 	protected string $imagickFormat = 'png32';
 
 	/**
-	 * Imagick background color (defaults to "transparent")
+	 * Imagick background color
 	 *
+	 * @deprecated 5.0.0 use QROptions::$bgColor instead
+	 * @see \chillerlan\QRCode\QROptions::$bgColor
 	 * @see \ImagickPixel::__construct()
 	 */
 	protected ?string $imagickBG = null;