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Processor.php
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<?php
/**
* Created by PhpStorm.
* User: Alexandr
* Date: 23.05.2017
* Time: 12:16
*/
namespace joomplace\plugins\system\thumbler;
class Processor
{
public static $params = '{}';
/*
* available parameters
*
* 'noimage' => fall back image
* 'title' => makes an <img title=""/>
* 'alt' => makes an <img alt=""/>
* 'set_attrs' => true if need <img width="" height=""/>
* 'width' => resulting file width
* 'height' => resulting file height, ignored and calculated if 'square' is true
* 'sizing' => image sizing, may be 'no' || 'spaced' || 'filled' || 'full', 'full' is default
* 'square' => true makes resulting file square
* 'fill_color' => fill color for whitespaces, transparent if not set
* 'compression' => quality 0..100 for .jpeg
*
*/
static function renderThumb($image, $settings = array()){
// avoid strict
$keys = array('noimage', 'title', 'alt' , 'set_attrs', 'width', 'height', 'sizing', 'square', 'fill_color', 'compression' );
foreach($keys as $key){
if(!array_key_exists($key,$settings)) $settings[$key] = '';
}
$output = '<img src="';
$component = self::getWorkingComponent();
$params = JComponentHelper::getParams($component);
if($settings['title']) $title = $settings['title']; else $title = $params->get('thmbl_title', false);
if($settings['alt']) $alt = $settings['alt']; else $alt = $params->get('thmbl_alt', false);
if($settings['set_attrs']) $set_attrs = $settings['set_attrs']; else $set_attrs = $params->get('thmbl_set_attrs', false);
if($settings['width']) $width = $settings['width']; else $width = $params->get('thmbl_width', 100);
if($settings['height']) $height = $settings['height']; else $height = $params->get('thmbl_height', false);
if(is_file($image) || is_file(JPATH_SITE.str_replace(JUri::root(true),'/',$image))){
$image = (is_file($image))?$image:JPATH_SITE.str_replace(JUri::root(true),'/',$image);
$output .= $outsrc = self::getThumb($image, $settings);
}else{
if($settings['noimage']) $noimage = $settings['noimage']; else $noimage = $params->get('thmbl_noimage', false);
$output .= $outsrc = self::getThumb($noimage, $settings);
}
$output .= '" ';
if($title) $output .= 'title="'.$title.'" ';
if($alt) $output .= 'alt="'.$alt.'" ';
if($set_attrs){
if($width) $width .= 'width="'.$width.'" ';
if($height) $height .= 'height="'.$height.'" ';
}
$output .= ' />';
if($outsrc){
return $output;
}
else{
return false;
}
}
/*
* available parameters
*
* 'width' => resulting file width
* 'height' => resulting file height, ignored and calculated if 'square' is true
* 'sizing' => image sizing, may be 'no' || 'spaced' || 'filled' || 'full', 'full' is default
* 'square' => true makes resulting file square
* 'fill_color' => fill color for whitespaces, transparent if not set
* 'compression' => quality 0..100 for .jpeg
*
*/
static function getThumb($image, $prefix='', $settings = array(), $watermark = true, $purge_cache = false){
$params = new \Joomla\Registry\Registry(self::$params);
$settings = new \Joomla\Registry\Registry($settings);
$params->merge($settings);
$width = $params->get('width',false);
$height = $params->get('height', false);
$square = $params->get('square',false);
$sizing = $params->get('sizing','filled');
$directory = trim($params->get('directory',"cache" . DIRECTORY_SEPARATOR ."images"), DIRECTORY_SEPARATOR);
if($params->get('subdirectory',false)){
if($params->get('sub',true)){
$directory .= DIRECTORY_SEPARATOR . $params->get('subdirectory');
}
}
if($watermark){
$watermark = $params->get('watermark','plugins/system/thumbler/watermark.png');
}
$thumb_rel_path = $directory . DIRECTORY_SEPARATOR;
if($params->get('type_sub',true)){
$base_ctype = ($square?'s':'') . $width."&". $height . ($sizing?$sizing:'') . base64_encode($params->get('background',''));
$thumb_rel_path .= $base_ctype . DIRECTORY_SEPARATOR;
}
$thumb_path = JPATH_SITE . DIRECTORY_SEPARATOR . $thumb_rel_path;
$thumb_rel_url = \JURI::root(true).'/'.$thumb_rel_path;
if(is_file($image) || is_file(JPATH_SITE.$image)){
$image = (is_file($image))?$image:JPATH_SITE.$image;
}else{
$image = JPATH_SITE.'/'.$params->get('noimage', 'plugins/system/thumbler/noimage.jpg');
}
$image_name = basename($image);
if(!$image_name){
return null;
}
$image_name = $prefix.$image_name;
if(is_file($thumb_path.$image_name) && !$purge_cache){
return trim($thumb_rel_url.$image_name,'\\');
}else{
if(!file_exists($thumb_path)){
\jimport('joomla.filesystem.file');
\jimport('joomla.filesystem.folder');
$destination= explode(DIRECTORY_SEPARATOR , $thumb_rel_path);
$creatingFolder = JPATH_SITE;
foreach($destination as $folder){
if($folder){
$creatingFolder.= DIRECTORY_SEPARATOR . $folder;
if (!\JFolder::create($creatingFolder, 0755)){
return $image;
}
}
}
}
/*
* TODO: extend color support to HEX and Names
*/
$fill_color = explode(",",$params->get('background',''));
if(!isset($fill_color[1])){
$fill_color = array('','','');
}
list($iwidth, $iheight, $itype) = getimagesize($image);
/*
* Coordinates preset
*/
$x=0;
$y=0;
$xd=0;
$yd=0;
/*
* Calculate width and height
*/
if(!$square){
if(!$width || !$height){
if(!$width && !$height){
$width = $params->get('width',100);
}
$ratio = $iwidth/$iheight;
if($width && !$height){
$height = $width/$ratio;
}else if(!$width && $height){
$width = $height*$ratio;
}
}
}else{
if($width){
$height = $width;
}else if($height){
$width = $height;
}else{
$width = $height = $params->get('width',100);
}
}
/*
* Calculate resize options
*/
if($sizing=="no"){
/*
* No sizing, no scale, just crop
*/
$wsizer = $width/$iwidth;
$hsizer = $height/$iheight;
}else{
if($sizing=="spaced"){
/*
* Size up with blank space preference
*/
if($width/$iwidth > $height/$iheight){
$hsizer = 1;
$wsizer = ($width*$iheight)/($iwidth*$height);
$xd = ($wsizer*$width - $iwidth) / 2;
}else{
$wsizer = 1;
$hsizer = ($height*$iwidth)/($iheight*$width);
$yd = ($height - $height/$hsizer)/2;
}
}
else{
/*
* Size up with no blank space preference
*/
if($sizing=="filled"){
/*
* Calculate positioning
*/
if($width/$iwidth > $height/$iheight){
$hsizer = ($height*$iwidth)/($width*$iheight);
$wsizer = 1;
$y = ($iheight - $hsizer*$iheight)/2;
}else{
$hsizer = 1;
$wsizer = ($width*$iheight)/($height*$iwidth);
$x = ($iwidth - $wsizer*$iwidth) / 2;
}
}else{
/*
* No sizing, all sides simple scale
*/
$hsizer = 1;
$wsizer = 1;
}
}
}
switch ($itype) {
case 3:
$file = imagecreatefrompng($image);
break;
case 2:
$file = imagecreatefromjpeg($image);
break;
case 1:
$file = imagecreatefromgif($image);
break;
case 6:
$file = imagecreatefromwbmp($image);
break;
}
/*
* Process and save an image
*/
$thumb = imagecreatetruecolor($width, $height);
if($fill_color[0]=='' || $fill_color[1]=='' || $fill_color[2]==''){
$trans = imagecolorallocatealpha($thumb, 0, 0, 0, 127);
imagecolortransparent($thumb, $trans);
imagefill($thumb, 0, 0, $trans);
}else{
imagefill($thumb, (int)$fill_color[0], (int)$fill_color[0], (int)$fill_color[0]);
}
imagecopyresampled ($thumb ,$file , $xd , $yd , $x , $y , $width/$wsizer , $height/$hsizer , $iwidth , $iheight );
imagedestroy($file);
/*
* Add watermark
*/
if($watermark){
$wmsizing = $params->get('watermark_sizing',60)/100;
$watermark = JPATH_SITE.self::getThumb($watermark,array('width'=>round($width*$wmsizing)),false, true);
list($wwidth,$wheight,$wtype) = getimagesize($watermark);
switch ($wtype) {
case 3:
$watermark = imagecreatefrompng($watermark);
break;
case 2:
$watermark = imagecreatefromjpeg($watermark);
break;
case 1:
$watermark = imagecreatefromgif($watermark);
break;
case 6:
$watermark = imagecreatefromwbmp($watermark);
break;
}
imagecopyresampled ($thumb ,$watermark , $width*(1-$wmsizing) , 0 , 0 , 0 , $wwidth , $wheight , $wwidth , $wheight );
imagedestroy($watermark);
}
$q = $params->get('quality', 100 - $params->get('compression',0));
switch ($itype) {
case 3:
imagealphablending($thumb, false);
imagesavealpha($thumb, true);
imagepng($thumb, $thumb_path.$image_name, round($q*9/100), PNG_ALL_FILTERS);
break;
case 2:
imagejpeg($thumb, $thumb_path.$image_name, $q);
break;
case 1:
imagegif($thumb, $thumb_path.$image_name);
break;
}
imagedestroy($thumb);
return trim($thumb_rel_url.$image_name,'\\');
}
}
}