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Add abstract storage layer

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This commit is contained in:
Frederic Guillot
2015-09-16 21:32:22 -04:00
parent 8bc141a286
commit 62fd225cfb
9 changed files with 519 additions and 156 deletions
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78
app/Core/Tool.php
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@@ -72,4 +72,82 @@ class Tool
}
}
}
/**
* Generate a jpeg thumbnail from an image
*
* @static
* @access public
* @param string $src_file Source file image
* @param string $dst_file Destination file image
* @param integer $resize_width Desired image width
* @param integer $resize_height Desired image height
*/
public static function generateThumbnail($src_file, $dst_file, $resize_width = 250, $resize_height = 100)
{
$metadata = getimagesize($src_file);
$src_width = $metadata[0];
$src_height = $metadata[1];
$dst_y = 0;
$dst_x = 0;
if (empty($metadata['mime'])) {
return;
}
if ($resize_width == 0 && $resize_height == 0) {
$resize_width = 100;
$resize_height = 100;
}
if ($resize_width > 0 && $resize_height == 0) {
$dst_width = $resize_width;
$dst_height = floor($src_height * ($resize_width / $src_width));
$dst_image = imagecreatetruecolor($dst_width, $dst_height);
}
elseif ($resize_width == 0 && $resize_height > 0) {
$dst_width = floor($src_width * ($resize_height / $src_height));
$dst_height = $resize_height;
$dst_image = imagecreatetruecolor($dst_width, $dst_height);
}
else {
$src_ratio = $src_width / $src_height;
$resize_ratio = $resize_width / $resize_height;
if ($src_ratio <= $resize_ratio) {
$dst_width = $resize_width;
$dst_height = floor($src_height * ($resize_width / $src_width));
$dst_y = ($dst_height - $resize_height) / 2 * (-1);
}
else {
$dst_width = floor($src_width * ($resize_height / $src_height));
$dst_height = $resize_height;
$dst_x = ($dst_width - $resize_width) / 2 * (-1);
}
$dst_image = imagecreatetruecolor($resize_width, $resize_height);
}
switch ($metadata['mime']) {
case 'image/jpeg':
case 'image/jpg':
$src_image = imagecreatefromjpeg($src_file);
break;
case 'image/png':
$src_image = imagecreatefrompng($src_file);
break;
case 'image/gif':
$src_image = imagecreatefromgif($src_file);
break;
default:
return;
}
imagecopyresampled($dst_image, $src_image, $dst_x, $dst_y, 0, 0, $dst_width, $dst_height, $src_width, $src_height);
imagejpeg($dst_image, $dst_file);
imagedestroy($dst_image);
}
}