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Update functions_thumbs.php

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This commit is contained in:
Roman Kelesidis 2023-12-22 23:39:36 +07:00
parent 194eeece7b
commit 885c99d298
1 changed files with 48 additions and 17 deletions
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65
library/attach_mod/includes/functions_thumbs.php
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@ -7,25 +7,37 @@ $imagick = '';
/**
* Calculate the needed size for Thumbnail
*/
function get_img_size_format($width, $height)
function get_img_size_format($width, $height, $target_width, $target_height = null)
{
// Maximum Width the Image can take
$max_width = 400;
if ($target_height == null)
{
// get width to height ratio
$ratio = $width / $height;
if ($width > $height)
{
return array(
round($width * ($max_width / $width)),
round($height * ($max_width / $width))
);
}
else
{
return array(
round($width * ($max_width / $height)),
round($height * ($max_width / $height))
);
// if is portrait
// use ratio to scale height to fit in square
if ($width > $height)
{
return array(
$target_width, // is target width
floor($target_width / $ratio) // is target height
);
}
// if is landscape
// use ratio to scale width to fit in square
else
{
return array(
floor($target_width * $ratio), // is target width
$target_width // is target height
);
}
}
return array(
$target_width,
$target_height
);
}
/**
@ -102,7 +114,11 @@ function create_thumbnail($source, $new_file, $mimetype)
return false;
}
list($new_width, $new_height) = get_img_size_format($width, $height);
// Thumbnail sizes
$target_width = 170;
$target_height = null;
list($new_width, $new_height) = get_img_size_format($width, $height, $target_width, $target_height);
$tmp_path = $old_file = '';
@ -146,6 +162,21 @@ function create_thumbnail($source, $new_file, $mimetype)
else
{
$new_image = imagecreatetruecolor($new_width, $new_height);
// set transparency options for GIFs and PNGs
if ($type['format'] == IMG_GIF || $type['format'] == IMG_PNG)
{
// make image transparent
imagecolortransparent($new_image, imagecolorallocate($new_image, 0, 0, 0));
// additional settings for PNGs
if ($type['format'] == IMG_PNG)
{
imagealphablending($new_image, false);
imagesavealpha($new_image, true);
}
}
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
}