Make methods fluent

Author: casperbakker

src/Barcode.php

@@ -14,6 +14,7 @@ public function __construct(string $barcode)
         $this->barcode = $barcode;
     }
 
+    // Add a bar to the barcode, either a bar or a space, at the right side of the barcode
     public function addBar(BarcodeBar $bar): void
     {
         $this->bars[] = $bar;

src/BarcodeBar.php

@@ -2,6 +2,7 @@
 
 namespace Picqer\Barcode;
 
+// Represents a single bar or space in a barcode
 readonly class BarcodeBar
 {
     protected int $width;

src/Renderers/DynamicHtmlRenderer.php

@@ -36,8 +36,10 @@ public function render(Barcode $barcode): string
         return $html;
     }
 
-    public function setForegroundColor(string $color): void
+    public function setForegroundColor(string $color): self
     {
         $this->foregroundColor = $color;
+
+        return $this;
     }
 }

src/Renderers/HtmlRenderer.php

@@ -36,8 +36,10 @@ public function render(Barcode $barcode, float $width = 200, float $height = 30)
         return $html;
     }
 
-    public function setForegroundColor(string $color): void
+    public function setForegroundColor(string $color): self
     {
         $this->foregroundColor = $color;
+        
+        return $this;
     }
 }

src/Renderers/PngRenderer.php

@@ -32,17 +32,19 @@ public function __construct()
     /**
      * Force the use of Imagick image extension
      */
-    public function useImagick(): void
+    public function useImagick(): self
     {
         $this->useImagick = true;
+        return $this;
     }
 
     /**
      * Force the use of the GD image library
      */
-    public function useGd(): void
+    public function useGd(): self
     {
         $this->useImagick = false;
+        return $this;
     }
 
     public function render(Barcode $barcode, int $widthFactor = 2, int $height = 30): string
@@ -88,9 +90,11 @@ public function render(Barcode $barcode, int $widthFactor = 2, int $height = 30)
         }
     }
 
-    public function setForegroundColor(array $color): void
+    public function setForegroundColor(array $color): self
     {
         $this->foregroundColor = $color;
+        
+        return $this;
     }
 
     protected function createGdImageObject(int $width, int $height)

src/Renderers/SvgRenderer.php

@@ -49,17 +49,19 @@ public function render(Barcode $barcode, float $width = 200, float $height = 30)
         return $svg;
     }
 
-    public function setForegroundColor(string $color): void
+    public function setForegroundColor(string $color): self
     {
         $this->foregroundColor = $color;
+        return $this;
     }
 
-    public function setSvgType(string $svgType): void
+    public function setSvgType(string $svgType): self
     {
         if (! in_array($svgType, [self::TYPE_SVG_INLINE, self::TYPE_SVG_STANDALONE])) {
             throw new InvalidOptionException();
         }
 
         $this->svgType = $svgType;
+        return $this;
     }
 }