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GalleryProcessor

The GalleryProcessor provides the logic for working with galleries and calculates the maximum asset size. It uses the files already present in the processedData array for its calculations. The FilesProcessor can be used to fetch the files.

Options:

if

if

Type: if condition
Required: false
Default: ''

Only if the condition is met the data processor is executed.

filesProcessedDataKey

filesProcessedDataKey

Type: string / stdWrap
Required: true
Default: 'files'
Example: 'myImages'

Key of the array previously processed by the FilesProcessor.

numberOfColumns

numberOfColumns

Type: integer / stdWrap
Required: false
Default: field:imagecols
Example: 4

Expects the desired number of columns. Defaults to the value of the field imagecols (Number of Columns) if used with content elements.

mediaOrientation

mediaOrientation

Type: integer / stdWrap
Required: false
Default: field:imageorient
Example: 2

Expects the image orientation as used in the field imageorient in content elements such as text with images. Defaults to the value of the field imageorient (Position and Alignment) if used with content elements.

Media orientation Palette — Media orientation in the content elements such as text with images

maxGalleryWidth

maxGalleryWidth

Type: integer / stdWrap
Required: false
Default: 600

Maximal gallery width in pixels.

maxGalleryWidthInText

maxGalleryWidthInText

Type: integer / stdWrap
Required: false
Default: 300

Maximal gallery width in pixels if displayed in a text.

equalMediaHeight, equalMediaWidth

equalMediaHeight, equalMediaWidth

Type: integer / stdWrap
Required: false
Default: field:imageheight, field:imagewidth
Example: 300

If set all images get scaled to a uniform height / width. Defaults to the value of the fields imageheight (Height of each element (px)), imagewidth (Width of each element (px)) if used with content elements.

Media height and width in the content element Text and Images

columnSpacing

columnSpacing

Type: integer / stdWrap
Required: false
Default: 0
Example: 4

Space between columns in pixels

borderEnabled

borderEnabled

Type: integer / stdWrap
Required: false
Default: field:imageborder
Example: 1

Should there be a border around the images? Defaults to the value of the fields imageborder (Number of Columns) if used with content elements.

borderWidth

borderWidth

Type: integer / stdWrap
Required: false
Default: 0
Example: 2

Width of the border in pixels.

borderPadding

borderPadding

Type: integer / stdWrap
Required: false
Default: 0
Example: 20

Padding around the border in pixels.

cropVariant

cropVariant

Type: string / stdWrap
Required: false
Default: "default"
Example: "mobile"

See t3tca:columns-imagemanipulation-properties-cropvariants

as

as

Type: string / stdWrap
Required: false
Default: "files"

The variable name to be used in the Fluid template.

dataProcessing

dataProcessing

Type: array of dataProcessing
Required: false
Default: []

Array of data processors to be applied to all fetched records.

Example: display images in rows and columns

Please see also About the examples.

TypoScript

As the GalleryProcessor expects the data of the files to be present in the the processedData array, the FilesProcessor always has to be called first. Execution depends on the key in the dataProcessing array, not the order in which they are put there.

The content of filesProcessedDataKey in the GalleryProcessor has to be equal to the content of as in the FilesProcessor:

        EXT:examples/Configuration/TypoScript/DataProcessors/Processors/GalleryProcessor.typoscript
    

tt_content {
   examples_dataprocgallery =< lib.contentElement
   examples_dataprocgallery {
      templateName = DataProcGallery
      dataProcessing {
         # Process files
         10 = TYPO3\CMS\Frontend\DataProcessing\FilesProcessor
         10 {
            as = images
            references.fieldName = image
            references.table = tt_content
            sorting = title
            sorting.direction = descending
         }

         # Calculate gallery info
         20 = TYPO3\CMS\Frontend\DataProcessing\GalleryProcessor
         20 {
            filesProcessedDataKey = images
            mediaOrientation.field = imageorient
            numberOfColumns = 4
            equalMediaHeight.field = imageheight
            equalMediaWidth.field = imagewidth
            maxGalleryWidth = 1000
            maxGalleryWidthInText = 1000
            columnSpacing = 0
            borderEnabled.field = imageborder
            borderWidth = 5
            borderPadding = 3
            as = gallery
         }
      }
   }
}

The Fluid template

EXT:examples/Resources/Private/Templates/ContentElements/DataProcGallery.html

<html data-namespace-typo3-fluid="true" xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers">
   <h2>Data in variable gallery</h2>
   <f:debug inline="true">{gallery}</f:debug>

   <h2>Output</h2>
   <f:for each="{gallery.rows}" as="row">
      <div class="row">
         <f:for each="{row.columns}" as="column">
            <f:if condition="{column.media}">
               <div class="col-auto p-{gallery.border.padding}">
                  <f:image image="{column.media}" width="{column.dimensions.width}"
                           class="{f:if(condition: '{gallery.border.enabled}',
                              then:'border border-success rounded')}"
                           style="border-width: {gallery.border.width}px!important;"/>
               </div>
            </f:if>
         </f:for>
      </div>
   </f:for>

</html>

Output

The array now contains the images ordered in rows and columns. For each image there is a desired width and height supplied.