pics/models/Image.php

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<?php
/*****************************************************************************
* Image.php
* Contains key class Image.
*
* Kabuki CMS (C) 2013-2015, Aaron van Geffen
*****************************************************************************/
class Image extends Asset
{
const TYPE_PANORAMA = 1;
const TYPE_LANDSCAPE = 2;
const TYPE_PORTRAIT = 4;
protected function __construct(array $data)
{
foreach ($data as $attribute => $value)
$this->$attribute = $value;
}
public static function fromId($id_asset, $return_format = 'object')
{
$asset = parent::fromId($id_asset, 'array');
if ($asset)
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return $return_format === 'object' ? new Image($asset) : $asset;
else
return false;
}
public static function fromIds(array $id_assets, $return_format = 'object')
{
if (empty($id_assets))
return [];
$assets = parent::fromIds($id_assets, 'array');
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if ($return_format === 'array')
return $assets;
else
{
$objects = [];
foreach ($assets as $id => $asset)
$objects[$id] = new Image($asset);
return $objects;
}
}
public function save()
{
$data = [];
foreach ($this->meta as $key => $value)
$data[] = [
'id_asset' => $this->id_asset,
'variable' => $key,
'value' => $value,
];
return Registry::get('db')->insert('replace', 'assets_meta', [
'id_asset' => 'int',
'variable' => 'string',
'value' => 'string',
], $data);
}
public function getExif()
{
return EXIF::fromFile($this->getPath());
}
public function getImageUrls($width = null, $height = null)
{
$image_urls = [];
if (isset($width) || isset($height))
{
$thumbnail = new Thumbnail($this);
$image_urls[1] = $this->getThumbnailUrl($width, $height, false);
// Can we afford to generate double-density thumbnails as well?
if ((!isset($width) || $this->image_width >= $width * 2) &&
(!isset($height) || $this->image_height >= $height * 2))
$image_urls[2] = $this->getThumbnailUrl($width * 2, $height * 2, false);
else
$image_urls[2] = $this->getThumbnailUrl($this->image_width, $this->image_height, true);
}
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else
$image_urls[1] = $this->getUrl();
return $image_urls;
}
public function getInlineImage($width = null, $height = null, $className = 'inline-image')
{
$image_urls = $this->getImageUrls($width, $height);
return '<img class="' . $className . '" src="' . $image_urls[1] . '" alt=""' .
(isset($image_urls[2]) ? ' srcset="' . $image_urls[2] . ' 2x"' : '') . '>';
}
/**
* @param width: width of the thumbnail.
* @param height: height of the thumbnail.
* @param crop: whether and how to crop original image to fit. [false|true|'top'|'center'|'bottom']
* @param fit: whether to fit the image to given boundaries [true], or use them merely as an estimation [false].
* @param generate: whether or not to generate a thumbnail if no existing file was found.
*/
public function getThumbnailUrl($width, $height, $crop = true, $fit = true, $generate = false)
{
$thumbnail = new Thumbnail($this);
return $thumbnail->getUrl($width, $height, $crop, $fit, $generate);
}
public function getId()
{
return $this->id_asset;
}
public function width()
{
return $this->image_width;
}
public function height()
{
return $this->image_height;
}
public function ratio()
{
return $this->image_width / $this->image_height;
}
public function isPanorama()
{
return $this->ratio() >= 2;
}
public function isPortrait()
{
return $this->ratio() < 1;
}
public function isLandscape()
{
$ratio = $this->ratio();
return $ratio >= 1 && $ratio <= 2;
}
public function getType()
{
if ($this->isPortrait())
return self::TYPE_PORTRAIT;
elseif ($this->isPanorama())
return self::TYPE_PANORAMA;
else
return self::TYPE_LANDSCAPE;
}
public function getThumbnails()
{
return $this->thumbnails;
}
public function removeAllThumbnails()
{
foreach ($this->thumbnails as $key => $filename)
{
$thumb_path = THUMBSDIR . '/' . $this->subdir . '/' . $filename;
if (is_file($thumb_path))
unlink($thumb_path);
}
return Registry::get('db')->query('
DELETE FROM assets_thumbs
WHERE id_asset = {int:id_asset}',
['id_asset' => $this->id_asset]);
}
public function removeThumbnailsOfSize($width, $height)
{
foreach ($this->thumbnails as $key => $filename)
{
if (strpos($key, $width . 'x' . $height) !== 0)
continue;
$thumb_path = THUMBSDIR . '/' . $this->subdir . '/' . $filename;
if (is_file($thumb_path))
unlink($thumb_path);
}
return Registry::get('db')->query('
DELETE FROM assets_thumbs
WHERE id_asset = {int:id_asset} AND
width = {int:width} AND
height = {int:height}',
[
'height' => $height,
'id_asset' => $this->id_asset,
'width' => $width,
]);
}
public function replaceThumbnail($descriptor, $tmp_file)
{
if (!is_file($tmp_file))
return -1;
if (!isset($this->thumbnails[$descriptor]))
return -2;
$image = new Imagick($tmp_file);
$d = $image->getImageGeometry();
unset($image);
// Check whether dimensions match.
$test_descriptor = $d['width'] . 'x' . $d['height'];
if ($descriptor !== $test_descriptor && strpos($descriptor, $test_descriptor . '_') === false)
return -3;
// Save the custom thumbnail in the assets directory.
$destination = ASSETSDIR . '/' . $this->subdir . '/' . $this->thumbnails[$descriptor];
if (file_exists($destination) && !is_writable($destination))
return -4;
if (!copy($tmp_file, $destination))
return -5;
// Copy it to the thumbnail directory, overwriting the automatically generated one, too.
$destination = THUMBSDIR . '/' . $this->subdir . '/' . $this->thumbnails[$descriptor];
if (file_exists($destination) && !is_writable($destination))
return -6;
if (!copy($tmp_file, $destination))
return -7;
// A little bookkeeping
$this->meta['custom_' . $d['width'] . 'x' . $d['height']] = $this->thumbnails[$descriptor];
$this->saveMetaData();
return 0;
}
}