91 lines
2.6 KiB
PHP
91 lines
2.6 KiB
PHP
<?php
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namespace Identicon\Generator;
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use Exception;
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/**
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* @author Benjamin Laugueux <benjamin@yzalis.com>
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*/
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class GdGenerator extends BaseGenerator implements GeneratorInterface
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{
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/**
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* GdGenerator constructor.
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*/
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public function __construct()
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{
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if (!extension_loaded('gd') && !extension_loaded('ext-gd')) {
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throw new Exception('GD does not appear to be available in your PHP installation. Please try another generator');
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}
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}
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/**
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* @return string
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*/
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public function getMimeType()
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{
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return 'image/png';
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}
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/**
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* @return $this
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*/
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private function generateImage()
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{
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// prepare image
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$this->generatedImage = imagecreatetruecolor($this->getPixelRatio() * 5, $this->getPixelRatio() * 5);
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$rgbBackgroundColor = $this->getBackgroundColor();
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if (null === $rgbBackgroundColor) {
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$background = imagecolorallocate($this->generatedImage, 0, 0, 0);
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imagecolortransparent($this->generatedImage, $background);
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} else {
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$background = imagecolorallocate($this->generatedImage, $rgbBackgroundColor[0], $rgbBackgroundColor[1], $rgbBackgroundColor[2]);
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imagefill($this->generatedImage, 0, 0, $background);
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}
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// prepare color
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$rgbColor = $this->getColor();
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$gdColor = imagecolorallocate($this->generatedImage, $rgbColor[0], $rgbColor[1], $rgbColor[2]);
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// draw content
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foreach ($this->getArrayOfSquare() as $lineKey => $lineValue) {
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foreach ($lineValue as $colKey => $colValue) {
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if (true === $colValue) {
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imagefilledrectangle($this->generatedImage, $colKey * $this->getPixelRatio(), $lineKey * $this->getPixelRatio(), ($colKey + 1) * $this->getPixelRatio(), ($lineKey + 1) * $this->getPixelRatio(), $gdColor);
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}
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}
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function getImageBinaryData($string, $size = null, $color = null, $backgroundColor = null)
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{
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ob_start();
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imagepng($this->getImageResource($string, $size, $color, $backgroundColor));
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$imageData = ob_get_contents();
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ob_end_clean();
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return $imageData;
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}
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/**
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* {@inheritdoc}
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*/
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public function getImageResource($string, $size = null, $color = null, $backgroundColor = null)
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{
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$this
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->setString($string)
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->setSize($size)
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->setColor($color)
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->setBackgroundColor($backgroundColor)
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->generateImage();
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return $this->generatedImage;
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}
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}
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