ArtboxImageHelper.php
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<?php
namespace common\components\artboximage;
use Yii;
use yii\base\Object;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
class ArtboxImageHelper extends Object
{
/** @var ArtboxImage $imageDriver */
private static $imageDriver;
private static $presets;
public static function getDriver()
{
if(empty( self::$imageDriver )) {
self::$imageDriver = Yii::$app->artboximage;
}
return self::$imageDriver;
}
public static function getPreset($preset)
{
if(empty( self::$presets )) {
self::$presets = self::getDriver()->presets;
}
return empty( self::$presets[ $preset ] ) ? NULL : self::$presets[ $preset ];
}
public static function getImage($file, $preset, $imgOptions = [])
{
$preset_alias = is_array($preset) ? array_keys($preset)[ 0 ] : NULL;
return Html::img(self::getImageSrc($file, $preset, $preset_alias), $imgOptions);
}
public static function getImageSrc($file, $preset, $preset_alias = NULL)
{
if(is_string($preset)) {
$preset_alias = $preset;
$preset = self::getPreset($preset);
}
if(empty( $preset ) || empty( $preset_alias )) {
return $file;
}
$filePath = self::getPathFromUrl($file);
if(!file_exists($filePath) || !preg_match('#^(.*)\.(' . self::getExtensionsRegexp() . ')$#', $file, $matches)) {
return $file;
}
return self::getPresetUrl($filePath, $preset, $preset_alias);
}
public static function fileinputWidget($model, $modelField, $formField = 'fileUpload', $multiple = false)
{
return Yii::$app->artboximage->fileinputWidget($model, $modelField, $formField, $multiple);
}
private static function getPathFromUrl($url)
{
return substr_replace($url, self::getDriver()->rootPath, 0, strlen(self::getDriver()->rootUrl));
}
private static function getUrlFromPath($path)
{
return substr_replace($path, self::getDriver()->rootUrl, 0, strlen(self::getDriver()->rootPath));
}
private static function getPresetUrl($filePath, $preset, $preset_alias)
{
$pathinfo = pathinfo($filePath);
$presetPath = $pathinfo[ 'dirname' ] . '/styles/' . strtolower($preset_alias);
$presetFilePath = $presetPath . '/' . $pathinfo[ 'basename' ];
$presetUrl = self::getUrlFromPath($presetFilePath);
if(file_exists($presetFilePath)) {
return $presetUrl;
}
if(!file_exists($presetPath)) {
@mkdir($presetPath, 0777, true);
}
$output = self::createPresetImage($filePath, $preset, $preset_alias);
if(!empty( $output )) {
$f = fopen($presetFilePath, 'w');
fwrite($f, $output);
fclose($f);
return $presetUrl;
}
return false;
}
private static function createPresetImage($filePath, $preset, $preset_alias)
{
$image = self::getDriver()
->load($filePath);
foreach($preset as $action => $data) {
switch($action) {
case 'resize':
$width = empty( $data[ 'width' ] ) ? NULL : $data[ 'width' ];
$height = empty( $data[ 'height' ] ) ? NULL : $data[ 'height' ];
$master = empty( $data[ 'master' ] ) ? NULL : $data[ 'master' ];
$image->resize($width, $height, $master);
break;
case 'flip':
$image->flip(@$data[ 'direction' ]);
break;
default:
break;
}
}
return $image->render();
}
/**
* Get extensions regexp
* @return string regexp
*/
private static function getExtensionsRegexp()
{
$keys = array_keys(self::getDriver()->extensions);
return '(?i)' . join('|', $keys);
}
/**
* Get size from suffix
*
* @param string $suffix
*
* @return string size
*/
private function getSizeFromSuffix($suffix)
{
return array_search($suffix, $this->getSizeSuffixes());
}
/**
* Get suffix from size
*
* @param string $size
*
* @return string suffix
*/
private function getSufixFromSize($size)
{
return ArrayHelper::getValue($this->getSizeSuffixes(), $size);
}
private function getSizeSuffixes()
{
$suffixes = [];
foreach($this->sizes as $size => $sizeConf) {
$suffixes[ $size ] = ArrayHelper::getValue($this->sizeSuffixes, $size, $this->defaultSizeSuffix . $size);
}
return $suffixes;
}
}