Files
website/rendering/Model/ImageModel.php

369 lines
11 KiB
PHP

<?php
/**
* Created by CS medien- & kommunikationssysteme.
* @author Christian Steinle
* @date 05.10.2016
*
* @copyright CS medien- & kommunikationssysteme (http://www.steinle-computer.de)
*/
namespace Model;
use Helper\Database;
use Helper\Registry;
class ImageModel extends Database
{
const TBL_NAME = TBL_IMAGE;
const PRIMARY_KEY = 'imageID';
const ORDER_BY = '';
/**
* Erzeugt die benötigten Bilder im Medien-Pfad und bereitet den Request auf
* @author Christian Steinle
*
* @param array $request
*/
protected static function beforeInsert(array &$request)
{
if (isset($request['imageTextModel']) && $request['imageTextModel'] === true)
{
return;
}
$registry = Registry::getInstance();
$navID = $request['navID'];
unset($request['navID']);
$mediaPath = $registry->editorConfig['mediaPath'] . $navID . '/';
if (!is_dir($mediaPath))
{
mkdir($mediaPath, 0775, true);
}
ImageModel::createOrigImage($mediaPath, $request);
ImageModel::createWebImage($mediaPath, $request, 'keyVisual');
}
/**
* Erzeugt einen Unique-Filename in einem vorgegebenen Pfad
* @author Christian Steinle
* @param string $path
* @param string $filename
* @return string
*/
public static function getUniqueFilename($path, $filename)
{
$filenameArray = self::filenameToArray($filename);
$filesInPath = glob($path . $filenameArray['filename'] . '*_orig.' . $filenameArray['extension']);
if (count($filesInPath) === 0)
{
return $filenameArray['filename'];
}
else
{
$newFilename = $filenameArray['filename'] . '_' . count($filesInPath);
return $newFilename;
}
}
/**
* Liefert ein Array zum übergebenen Dateinamen
* - 'filename' => Dateiname ohne Erweiterung
* - 'extension' => Datei-Erweiterung
* @author Christian Steinle
*
* @param string $filename
* @return array
*/
public static function filenameToArray($filename)
{
$tmpData = explode('.', $filename, -1);
$newFilename = implode('.', $tmpData);
$extension = str_replace($newFilename . '.', '', $filename);
return array('filename' => $newFilename, 'extension' => $extension);
}
/**
* Kopiert das Standard-Bild oder -KeyVisual
* @author Christian Steinle
*
* @param string $newPath
* @param string $filename
* @param string $type
*/
public static function copyStandardImage($newPath, $filename, $type)
{
$registry = Registry::getInstance();
switch ($type)
{
case 'image':
$imageData = $registry->editorConfig['imageDimension']['image'];
break;
case 'keyVisual':
$imageData = $registry->editorConfig['imageDimension']['keyVisual'];
break;
default:
return;
}
if (!is_dir($newPath))
{
mkdir($newPath, 0777, true);
}
$standardImagePath = substr(str_replace(PATH_PREFIX, '', PATH_ROOT), 0, -1) . $imageData['standardImage'];
$filenameArray = self::filenameToArray($filename);
copy($standardImagePath, $newPath . $filename);
copy($standardImagePath, $newPath . $filenameArray['filename'] . '_orig.' . $filenameArray['extension']);
self::createThumb($newPath, $filename);
}
/**
* Erstellt ein Thumbnail von einem Bild
* @author Christian Steinle
*
* @param string $path
* @param string $file
*/
public static function createThumb($path, $file)
{
$registry = Registry::getInstance();
$imageData = $registry->editorConfig['imageDimension']['thumb'];
$newWidth = $imageData['width'];
$newQuality = $imageData['quality'];
$filenameArray = self::filenameToArray($file);
list($width, $height) = getimagesize($path . $file);
$newHeight = $height * $newWidth / $width;
$newImage = imagecreatetruecolor($newWidth, $newHeight);
switch ($filenameArray['extension'])
{
case 'jpg':
$origImage = imagecreatefromjpeg($path . $file);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagejpeg($newImage, $path . $filenameArray['filename'] . '_thumb.jpg', $newQuality);
break;
case 'png':
$origImage = imagecreatefrompng($path . $file);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagepng($newImage, $path . $filenameArray['filename'] . '_thumb.png');
break;
case 'gif':
$origImage = imagecreatefromgif($path . $file);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagegif($newImage, $path . $filenameArray['filename'] . '_thumb.gif');
break;
default:
return;
}
}
/**
* Löscht vorhandene Bilder vor entfernen aus der Datenbank
* @author Christian Steinle
*
* @param int $id
*/
protected static function beforeDelete($id)
{
$registry = Registry::getInstance();
$data = self::getItem($id);
$mediaPath = $registry->editorConfig['mediaPath'] . $registry->navID . '/';
ImageModel::deleteImages($mediaPath, $data['imageName'], $data['imageExtension']);
}
/**
* Löscht die Bilder aus dem Medienpfad
* @author Christian Steinle
*
* @param $mediaPath
* @param $imageName
* @param $imageExtension
*/
public static function deleteImages($mediaPath, $imageName, $imageExtension)
{
unlink($mediaPath . $imageName . '.' . $imageExtension);
unlink($mediaPath . $imageName . '_orig.' . $imageExtension);
unlink($mediaPath . $imageName . '_thumb.' . $imageExtension);
}
/**
* Verschiebt / Erzeugt Bilder und generiert Derivate
* @author Christian Steinle
*
* @param array $request
*/
protected static function beforeUpdate(array &$request)
{
$registry = Registry::getInstance();
$mediaPath = $registry->editorConfig['mediaPath'] . $registry->navID . '/';
$imageType = 'image';
if (isset($request['keyVisualID']))
{
$imageType = 'keyVisual';
}
$oldData = self::getItem($request[static::PRIMARY_KEY]);
if (isset($_FILES['changeUploadFile']) && $_FILES['changeUploadFile']['tmp_name'] !== '' && $_FILES['changeUploadFile']['error'] === 0)
{
ImageModel::deleteImages($mediaPath, $oldData['imageName'], $oldData['imageExtension']);
$request['imageName'] = ImageModel::getUniqueFilename($mediaPath, $request['imageName'] . '.' . $request['imageExtension']);
ImageModel::createOrigImage($mediaPath, $request);
ImageModel::createWebImage($mediaPath, $request, $imageType);
}
elseif (isset($_FILES['changeUploadFile']) && $_FILES['changeUploadFile']['tmp_name'] === '' && $oldData['imageName'] !== $request['imageName'])
{
$request['imageName'] = ImageModel::getUniqueFilename($mediaPath, $request['imageName'] . '.' . $request['imageExtension']);
rename($mediaPath . $oldData['imageName'] . '_orig.' . $oldData['imageExtension'], $mediaPath . $request['imageName'] . '_orig.' . $request['imageExtension']);
rename($mediaPath . $oldData['imageName'] . '.' . $oldData['imageExtension'], $mediaPath . $request['imageName'] . '.' . $request['imageExtension']);
rename($mediaPath . $oldData['imageName'] . '_thumb.' . $oldData['imageExtension'], $mediaPath . $request['imageName'] . '_thumb.' . $request['imageExtension']);
}
if (isset($_FILES['changeUploadFile']) &&
$_FILES['changeUploadFile']['tmp_name'] === '' &&
(abs($oldData['imageTop'] - $request['imageTop']) > .5 ||
abs($oldData['imageLeft'] - $request['imageLeft']) > .5 ||
abs($oldData['imageHeight'] - $request['imageHeight']) > .5 ||
abs($oldData['imageWidth'] - $request['imageWidth']) > .5)
)
{
unlink($mediaPath . $request['imageName'] . '.' . $request['imageExtension']);
unlink($mediaPath . $request['imageName'] . '_thumb.' . $request['imageExtension']);
ImageModel::createWebImage($mediaPath, $request, $imageType);
}
}
/**
* Legt ein hochgeladenes Bild im Medienpfad ab und verkleinert es, falls die Abmessungen zu groß sind
* @author Christian Steinle
*
* @param $mediaPath
* @param $request
*/
public static function createOrigImage($mediaPath, &$request)
{
$registry = Registry::getInstance();
$origData = $registry->editorConfig['imageDimension']['orig'];
$tmpName = $request['imageName'] . '__tmp__.' . $request['imageExtension'];
if (!is_dir($mediaPath))
{
mkdir($mediaPath, 0777, true);
}
move_uploaded_file($_FILES['changeUploadFile']['tmp_name'], $mediaPath . $tmpName);
list($width, $height) = getimagesize($mediaPath . $tmpName);
if ($width > $origData['width'] || $height > $origData['height'])
{
$newWidth = $origData['width'];
$newHeight = $height * $newWidth / $width;
$newImage = imagecreatetruecolor($newWidth, $newHeight);
switch ($request['imageExtension'])
{
case 'jpg':
$origImage = imagecreatefromjpeg($mediaPath . $tmpName);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagejpeg($newImage, $mediaPath . $request['imageName'] . '_orig.jpg', $origData['quality']);
break;
case 'png':
$origImage = imagecreatefrompng($mediaPath . $tmpName);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagepng($newImage, $mediaPath . $request['imageName'] . '_orig.png');
break;
case 'gif':
$origImage = imagecreatefromgif($mediaPath . $tmpName);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagegif($newImage, $mediaPath . $request['imageName'] . '_orig.gif');
break;
default:
return;
}
unlink($mediaPath . $tmpName);
}
else
{
rename($mediaPath . $tmpName, $mediaPath . $request['imageName'] . '_orig.' . $request['imageExtension']);
}
}
/**
* Erzeugt das WebImage mit dem passenden Ausschnitt aus dem Original
* @author Christian Steinle
* TODO: Transparenz bei pngs
*
* @param $mediaPath
* @param $request
* @param $type
*/
public static function createWebImage($mediaPath, $request, $type)
{
$registry = Registry::getInstance();
switch ($type)
{
case 'image':
$imageData = $registry->editorConfig['imageDimension']['image'];
break;
case 'keyVisual':
$imageData = $registry->editorConfig['imageDimension']['keyVisual'];
break;
default:
return;
}
$origName = $request['imageName'] . '_orig.' . $request['imageExtension'];
$webName = $request['imageName'] . '.' . $request['imageExtension'];
list($width, $height) = getimagesize($mediaPath . $origName);
$newWidth = $imageData['width'];
$newHeight = $newWidth * $request['imageHeight'] / $request['imageWidth'];
$newImage = imagecreatetruecolor($newWidth, $newHeight);
switch ($request['imageExtension'])
{
case 'jpg':
$origImage = imagecreatefromjpeg($mediaPath . $origName);
imagecopyresampled($newImage, $origImage, 0, 0, $request['imageLeft'] * $width / $newWidth, $request['imageTop'] * $width / $newWidth, $newWidth, $newHeight, $width * $request['imageWidth'] / $newWidth, $width * $request['imageWidth'] * $newHeight / ($newWidth * $newWidth));
imagejpeg($newImage, $mediaPath . $webName, $imageData['quality']);
break;
case 'png':
$origImage = imagecreatefrompng($mediaPath . $origName);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagepng($newImage, $mediaPath . $webName);
break;
case 'gif':
$origImage = imagecreatefromgif($mediaPath . $origName);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagegif($newImage, $mediaPath . $webName);
break;
default:
return;
}
self::createThumb($mediaPath, $webName);
}
}