From 9b0b9a0e6082b3375ebdadc651c971671c922ebc Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluewind@xinu.at>
Date: Mon, 29 Sep 2014 00:41:35 +0200
Subject: Move thumbnail code to dedicated class

This also moves the code from mfile->image_dimension() to the only
place where it was called.

Signed-off-by: Florian Pritz <bluewind@xinu.at>
---
 application/models/mfile.php | 172 -------------------------------------------
 1 file changed, 172 deletions(-)

(limited to 'application/models')

diff --git a/application/models/mfile.php b/application/models/mfile.php
index c4d2c6e68..f23855bfd 100644
--- a/application/models/mfile.php
+++ b/application/models/mfile.php
@@ -102,178 +102,6 @@ class Mfile extends CI_Model {
 		return $mimetype;
 	}
 
-	public function image_dimension($file)
-	{
-		list($width, $height) = getimagesize($file);
-
-		return "${width}x${height}";
-	}
-
-	/*
-	 * This returns a square thumbnail for the input image
-	 * Source: http://salman-w.blogspot.co.at/2009/04/crop-to-fit-image-using-aspphp.html
-	 */
-	public function makeThumb($id, $size = 150, $target_type = null)
-	{
-		$filedata = $this->get_filedata($id);
-		if (!$filedata) {
-			return false;
-		}
-
-		$source_path = $this->file($filedata["hash"]);
-
-		$source_gdim = imagecreatefromstring(file_get_contents($source_path));
-		if ($source_gdim === false) {
-			show_error("Unsupported image type");
-		}
-		imagealphablending($source_gdim,false);
-		imagesavealpha($source_gdim,true);
-
-		list($source_width, $source_height, $source_type) = getimagesize($source_path);
-
-		if ($target_type === null) {
-			$target_type = $source_type;
-		}
-
-		$target_width = $size;
-		$target_height = $size;
-
-		$source_aspect_ratio = $source_width / $source_height;
-		$desired_aspect_ratio = $target_width / $target_height;
-
-		if ($source_aspect_ratio > $desired_aspect_ratio) {
-			// Triggered when source image is wider
-			$temp_height = $target_height;
-			$temp_width = round(($target_height * $source_aspect_ratio));
-		} else {
-			// Triggered otherwise (i.e. source image is similar or taller)
-			$temp_width = $target_width;
-			$temp_height = round(($target_width / $source_aspect_ratio));
-		}
-
-		/*
-		 * Resize the image into a temporary GD image
-		 */
-
-		$temp_gdim = imagecreatetruecolor($temp_width, $temp_height);
-		imagealphablending($temp_gdim,false);
-		imagesavealpha($temp_gdim,true);
-		imagecopyresampled(
-			$temp_gdim,
-			$source_gdim,
-			0, 0,
-			0, 0,
-			$temp_width, $temp_height,
-			$source_width, $source_height
-		);
-
-		/*
-		 * Copy cropped region from temporary image into the desired GD image
-		 */
-
-		$x0 = ($temp_width - $target_width) / 2;
-		$y0 = ($temp_height - $target_height) / 2;
-		$thumb = imagecreatetruecolor($target_width, $target_height);
-		imagealphablending($thumb,false);
-		imagesavealpha($thumb,true);
-		imagecopy(
-			$thumb,
-			$temp_gdim,
-			0, 0,
-			$x0, $y0,
-			$target_width, $target_height
-		);
-
-		/*
-		 * Fix orientation according to exif tag
-		 */
-		try {
-			$exif = exif_read_data($source_path);
-		} catch (ErrorException $e) {
-		}
-
-		if (isset($exif['Orientation'])) {
-			$mirror = false;
-			$deg    = 0;
-
-			switch ($exif['Orientation']) {
-			case 2:
-				$mirror = true;
-				break;
-			case 3:
-				$deg = 180;
-				break;
-			case 4:
-				$deg = 180;
-				$mirror = true;
-				break;
-			case 5:
-				$deg = 270;
-				$mirror = true;
-				break;
-			case 6:
-				$deg = 270;
-				break;
-			case 7:
-				$deg = 90;
-				$mirror = true;
-				break;
-			case 8:
-				$deg = 90;
-				break;
-			}
-			if ($deg) $thumb = imagerotate($thumb, $deg, 0);
-			if ($mirror) $thumb = $this->_mirrorImage($thumb);
-		}
-
-		ob_start();
-		switch ($target_type) {
-			case IMAGETYPE_GIF:
-				$ret = imagegif($thumb);
-				break;
-			case IMAGETYPE_JPEG:
-				$ret = imagejpeg($thumb);
-				break;
-			case IMAGETYPE_PNG:
-				$ret = imagepng($thumb);
-				break;
-			default:
-				assert(0);
-		}
-		$result = ob_get_clean();
-
-		if (!$ret) {
-			show_error("Failed to create thumbnail");
-		}
-
-		imagedestroy($thumb);
-		imagedestroy($temp_gdim);
-		imagedestroy($source_gdim);
-
-		return $result;
-	}
-
-	function _mirrorImage($imgsrc)
-	{
-		$width = imagesx($imgsrc);
-		$height = imagesy($imgsrc);
-
-		$src_x = $width -1;
-		$src_y = 0;
-		$src_width = -$width;
-		$src_height = $height;
-
-		$imgdest = imagecreatetruecolor($width, $height);
-		imagealphablending($imgdest,false);
-		imagesavealpha($imgdest,true);
-
-		if (imagecopyresampled($imgdest, $imgsrc, 0, 0, $src_x, $src_y, $width, $height, $src_width, $src_height)) {
-			return $imgdest;
-		}
-
-		return $imgsrc;
-	}
-
 	// Add a hash to the DB
 	function add_file($hash, $id, $filename)
 	{
-- 
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