Rename all common/framework source files to be case-sensitive

common/framework/Image.php

@@ -0,0 +1,84 @@
+<?php
+
+namespace Rhymix\Framework;
+
+/**
+ * The image class.
+ */
+class Image
+{
+	/**
+	 * Check if a file is an image
+	 * 
+	 * @param string $filename
+	 * @return bool
+	 */
+	public static function isImage($filename)
+	{
+		return array_shift(explode('/', MIME::getContentType($filename))) === 'image';
+	}
+	
+	/**
+	 * Check if a file is an animated GIF.
+	 * 
+	 * @param string $filename
+	 * @return bool
+	 */
+	public static function isAnimatedGIF($filename)
+	{
+		if (MIME::getContentType($filename) !== 'image/gif')
+		{
+			return false;
+		}
+		if (!$fp = @fopen($filename, 'rb'))
+		{
+			return false;
+		}
+		$frames = 0;
+		while (!feof($fp) && $frames < 2)
+		{
+			$frames += preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', fread($fp, 1024 * 16) ?: '');
+			if (!feof($fp))
+			{
+				fseek($fp, -9, SEEK_CUR);
+			}
+		}
+		fclose($fp);
+		return $frames > 1;
+	}
+	
+	/**
+	 * Get image information
+	 * 
+	 * @param string $filename
+	 * @return array|false
+	 */
+	public static function getImageInfo($filename)
+	{
+		if (!self::isImage($filename))
+		{
+			return false;
+		}
+		if (!$image_info = @getimagesize($filename))
+		{
+			return false;
+		}
+		$img_type = [
+			IMAGETYPE_GIF => 'gif',
+			IMAGETYPE_JPEG => 'jpg',
+			IMAGETYPE_JPEG2000 => 'jp2',
+			IMAGETYPE_PNG => 'png',
+			(defined('IMAGETYPE_WEBP') ? IMAGETYPE_WEBP : 18) => 'webp',
+			IMAGETYPE_BMP => 'bmp',
+			IMAGETYPE_PSD => 'psd',
+			IMAGETYPE_ICO => 'ico',
+		];
+		return [
+			'width' => $image_info[0],
+			'height' => $image_info[1],
+			'type' => $img_type[$image_info[2]],
+			'bits' => $image_info['bits'] ?? null,
+			'channels' => $image_info['channels'] ?? null,
+		];
+	}
+}