Implement DrawPixelModifier

src/Drivers/Abstract/AbstractImage.php

@@ -200,6 +200,14 @@ abstract class AbstractImage implements ImageInterface
         return $this->modify($modifier);
     }
 
+    public function drawPixel(int $x, int $y, $color = null): ImageInterface
+    {
+        $color = $this->handleInput($color);
+        $modifier = $this->resolveDriverClass('Modifiers\DrawPixelModifier', new Point($x, $y), $color);
+
+        return $this->modify($modifier);
+    }
+
     public function resize(?int $width = null, ?int $height = null): ImageInterface
     {
         return $this->modify(

src/Drivers/Gd/Modifiers/DrawPixelModifier.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Intervention\Image\Drivers\Gd\Modifiers;
+
+use Intervention\Image\Geometry\Point;
+use Intervention\Image\Interfaces\ColorInterface;
+use Intervention\Image\Interfaces\ImageInterface;
+use Intervention\Image\Interfaces\ModifierInterface;
+
+class DrawPixelModifier implements ModifierInterface
+{
+    public function __construct(protected Point $position, protected ColorInterface $color)
+    {
+        //
+    }
+
+    public function apply(ImageInterface $image): ImageInterface
+    {
+        foreach ($image as $frame) {
+            imagesetpixel(
+                $frame->getCore(),
+                $this->position->getX(),
+                $this->position->getY(),
+                $this->color->toInt()
+            );
+        }
+
+        return $image;
+    }
+}

src/Drivers/Imagick/Modifiers/DrawPixelModifier.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace Intervention\Image\Drivers\Imagick\Modifiers;
+
+use ImagickDraw;
+use Intervention\Image\Drivers\Imagick\Color;
+use Intervention\Image\Exceptions\DecoderException;
+use Intervention\Image\Geometry\Point;
+use Intervention\Image\Interfaces\ColorInterface;
+use Intervention\Image\Interfaces\ImageInterface;
+use Intervention\Image\Interfaces\ModifierInterface;
+
+class DrawPixelModifier implements ModifierInterface
+{
+    public function __construct(protected Point $position, protected ColorInterface $color)
+    {
+        //
+    }
+
+    public function apply(ImageInterface $image): ImageInterface
+    {
+        $pixel = new ImagickDraw();
+        $pixel->setFillColor($this->getColor()->getPixel());
+        $pixel->point($this->position->getX(), $this->position->getY());
+
+        foreach ($image as $frame) {
+            $frame->getCore()->drawImage($pixel);
+        }
+
+        return $image;
+    }
+
+    public function getColor(): Color
+    {
+        if (!is_a($this->color, Color::class)) {
+            throw new DecoderException('Unable to decode given pixel color.');
+        }
+
+        return $this->color;
+    }
+}

src/Interfaces/ImageInterface.php

@@ -36,6 +36,7 @@ interface ImageInterface extends Traversable, Countable
     public function fitDown(int $width, int $height, string $position = 'center'): ImageInterface;
     public function pad(int $width, int $height, $background = 'ffffff', string $position = 'center'): ImageInterface;
     public function padDown(int $width, int $height, $background = 'ffffff', string $position = 'center'): ImageInterface;
+    public function drawPixel(int $x, int $y, $color = null): ImageInterface;
     public function getWidth(): int;
     public function getHeight(): int;
     public function destroy(): void;

tests/Drivers/Gd/Modifiers/DrawPixelModifierTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Intervention\Image\Tests\Drivers\Gd\Modifiers;
+
+use Intervention\Image\Drivers\Gd\Color;
+use Intervention\Image\Drivers\Gd\Modifiers\DrawPixelModifier;
+use Intervention\Image\Geometry\Point;
+use Intervention\Image\Tests\TestCase;
+use Intervention\Image\Tests\Traits\CanCreateGdTestImage;
+
+/**
+ * @requires extension gd
+ * @covers \Intervention\Image\Drivers\Gd\Modifiers\DrawPixelModifier
+ */
+class DrawPixelModifierTest extends TestCase
+{
+    use CanCreateGdTestImage;
+
+    public function testApply(): void
+    {
+        $image = $this->createTestImage('trim.png');
+        $this->assertEquals('00aef0', $image->pickColor(14, 14)->toHex());
+        $image->modify(new DrawPixelModifier(new Point(14, 14), new Color(16777215)));
+        $this->assertEquals('ffffff', $image->pickColor(14, 14)->toHex());
+    }
+}

tests/Drivers/Imagick/Modifiers/DrawPixelModifierTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Intervention\Image\Tests\Drivers\Imagick\Modifiers;
+
+use ImagickPixel;
+use Intervention\Image\Drivers\Imagick\Color;
+use Intervention\Image\Drivers\Imagick\Modifiers\DrawPixelModifier;
+use Intervention\Image\Geometry\Point;
+use Intervention\Image\Tests\TestCase;
+use Intervention\Image\Tests\Traits\CanCreateImagickTestImage;
+
+/**
+ * @requires extension gd
+ * @covers \Intervention\Image\Drivers\Gd\Modifiers\DrawPixelModifier
+ */
+class DrawPixelModifierTest extends TestCase
+{
+    use CanCreateImagickTestImage;
+
+    public function testApply(): void
+    {
+        $image = $this->createTestImage('trim.png');
+        $this->assertEquals('00aef0', $image->pickColor(14, 14)->toHex());
+        $image->modify(new DrawPixelModifier(new Point(14, 14), new Color(new ImagickPixel('#ffffff'))));
+        $this->assertEquals('ffffff', $image->pickColor(14, 14)->toHex());
+    }
+}