GalleryItem Custom TV

[[!getResourceField? &id=`[[+id]]` &field=`blogImage`]]

{"gal_src":"http://localhost/sos_dev/assets/components/gallery/files/2010/10/pic-02.png","gal_id":2,"gal_name":"Photo 02","gal_description":"Interesting photo 02.","gal_image_width":"500","gal_image_height":"280","gal_orig_width":1313,"gal_orig_height":760,"gal_album":"1","gal_watermark-text":"","gal_watermark-text-position":"BL","gal_other":"","gal_rotate":"0","gal_sizer":100,"gal_cropCoords":"{\"left\":0,\"right\":502,\"top\":0,\"bottom\":352,\"relRight\":0,\"relBottom\":0,\"on\":true}","gal_cropTop":0,"gal_cropRight":0,"gal_cropBottom":0,"gal_cropLeft":0}

&processTVs=`1`

[[+tv.blogImage:image]]

[[!GalleryItem? &id=`12`]]  

[[!GalleryItem? &id=`[[*galleryItemID]]`]]  

<?php
/**
 * galleryImageGenerator
 *
 * 2014 by Toby Trembath <http://twobyte.com>
 *
 * Built upon the excellent Gallery Package by Shaun McCormick <[email protected]>
 *
 * DESCRIPTION
 *
 * This Snippet uses galleryItem TV and formats appropriately for template position.
 * IMPORTANT, Output options for your GalleryItem TV *Must* be set to string
 *
 * PROPERTIES:
 *
 * &TVstring string containing TV values as JSON required
 * &width integer optional.
 * &height integer optional.
 *
 * Dependent on the excellent Gallery and PHPThumb Packages
 *
 * USAGE:
 *
 * [[galleryImageGenerator? &TVstring=`[[*featureImage]]` &width=`296`]]
 * Requires Chunk called photo-pic to render <img>, todo: make this a tpl property
 */
/* example &TVstring json we will pass in..
{
	"gal_src":"/assets/gallery/3/34.jpg",
	"gal_id":34,
	"gal_name":"Cool Kitchen title",
	"gal_description":"Cool Kitchen Alt",
	"gal_image_width":1270,
	"gal_image_height":847,
	"gal_orig_width":3735,
	"gal_orig_height":2490,
	"gal_album":"3",
	"gal_watermark-text":"",
	"gal_watermark-text-position":"BL",
	"gal_other":"",
	"gal_rotate":"0",
	"gal_sizer":"34",
	"gal_cropCoords":"{\"left\":0,\"right\":762,\"top\":128,\"bottom\":849,\"relRight\":508,\"relBottom\":0,\"on\":true}",
	"gal_cropTop":128,
	"gal_cropRight":508,
	"gal_cropBottom":0,
	"gal_cropLeft":0
}
*/
$TVstring = $modx->getOption('TVstring', $scriptProperties);
$width = (int) $modx->getOption('width', $scriptProperties);
$height = (int) $modx->getOption('height', $scriptProperties);

if (!$TVstring){
	$modx->log(modX::LOG_LEVEL_ERROR, '[galleryImageGenerator] $TVstring "'.$TVstring.'" not understood!');
	return;
}

// Taken from the GalleryItem output script, except value changed to be $TVstring

$corePath = $modx->getOption('gallery.core_path',null,$modx->getOption('core_path').'components/gallery/');
$modx->addPackage('gallery',$corePath.'model/');

if (!empty($TVstring) && $TVstring != '{}') {
    $data = $modx->fromJSON($TVstring);
    if (empty($data)) return '';

    $item = $modx->getObject('galItem',$data['gal_id']);
    if ($item) {
        /* get filters */
        $filtersArray = array();
        if (!empty($data['gal_rotate'])) {
            $filtersArray['rot'] = (string)$data['gal_rotate'];
        }
        /* text watermark */
        if (!empty($data['gal_watermark-text'])) {
            $filtersArray['wmt'] = (string)$data['gal_watermark-text'].'|5|'.$data['gal_watermark-text-position'].'|ffffff|||5|||100|0';
        }

        /* get any other params */
        $other = !empty($data['gal_other']) ? $data['gal_other'] : '';
        if (!empty($other)) {
            if (substr($other,0,1) != '&') {
                $other = '&'.$other;
            }
        }
        $dimensions = array();
        
        $data['gal_cropLeft'] = !empty($data['gal_cropLeft']) ? $data['gal_cropLeft'] : 0;
        $data['gal_cropTop'] = !empty($data['gal_cropTop']) ? $data['gal_cropTop'] : 0;
        $data['gal_cropRight'] = !empty($data['gal_cropRight']) ? $data['gal_cropRight'] : 0;
        $data['gal_cropBottom'] = !empty($data['gal_cropBottom']) ? $data['gal_cropBottom'] : 0;
        
		if(!empty($width) && $width > 0){
			//$dimensions['w']=$width;
			$scale = ( $data['gal_image_width'] - $data['gal_cropLeft'] - $data['gal_cropRight'] )/$width;
			$dimensions['w'] = round($data['gal_image_width']/$scale);
		}
		if(!empty($height) && $height > 0){
			//$dimensions['h']=$height;
			$scale = ( $data['gal_image_height'] - $data['gal_cropTop'] - $data['gal_cropBottom'] )/$height;
			$dimensions['h'] = round($data['gal_image_height']/$scale);
		}
		if(count($dimensions)==0){
			$dimensions = array(
	            'w' => $data['gal_image_width'],
	            'h' => $data['gal_image_height']
            );
            $scale = 1;
		}
		$dimensions['f'] = 'png';
		
		
        /* crop */
        if (!empty($data['gal_cropCoords'])) {
            $filtersArray['crop'] = round($data['gal_cropLeft']/$scale).'|'.round($data['gal_cropRight']/$scale).'|'.round($data['gal_cropTop']/$scale).'|'.round($data['gal_cropBottom']/$scale);
        }		
		
        $filters = '';
        foreach ($filtersArray as $filter => $val) {
            $filters .= '&fltr[]='.$filter.'|'.$val;
        }

        $url = $item->get('image',$dimensions).$filters.$other;

        $props = array (
		   'thumbnail' => $url,
		   'url' => $url,
		   'name' => $data['gal_description'],
		   'alt' => $data['gal_description'],
		   'title' => $data['gal_name'],
		   'class' => $data['gal_class']
        );
        
        $value = $modx->getChunk('photo-pic', $props);
		
    } else {
        $value = '';
    }
} else { /* if empty dont return json, return blank */
    $value = '';
}
return $value;

?>