[FEATURE] Configure the title of a crop variant

Classes/TcaUtility.php

@@ -50,7 +50,7 @@ public static function writeCropVariantsConfigurationToTca(array $cropVariants,
                 $fieldConfig['cropVariants'] = [];
                 foreach ($sizes as $size => $sizeConfig) {
                     $fieldConfig['cropVariants'][$size] = [
-                        'title' => ucfirst($size),
+                        'title' => $sizeConfig['title'] ?: ucfirst($size),
                         'allowedAspectRatios' => [],
                     ];
                     foreach ($sizeConfig['aspectRatios'] as $aspectRatio) {

Readme.md

@@ -7,3 +7,64 @@ This package uses the powerful new responsive image cropping capabilities of TYP
 
 TYPO3 8.7 comes with the powerful feature of `cropVariant`s, which let's you define use cases for your image including `allowedAspectRatios` and optionally `coverAreas`.
 This package simplifies the configuration of this feature.
+
+## Usage:
+
+ This package provides the method `\Smichaelsen\MelonImages\TcaUtility::writeCropVariantsConfigurationToTca()`, which manipulates the TCA,
+ so in your extension `Configuration/TCA/Overrides/tx_news_domain_model_news.php` is a good place if you want to define cropping for a
+ news image field.
+
+ This defines 3 crop variants for the `fal_media` field of news:
+
+ ````
+ \Smichaelsen\MelonImages\TcaUtility::writeCropVariantsConfigurationToTca(
+     [
+         '__default' => [ // __default = for all news types
+             'fal_media' => [
+                 'detail' => [
+                     'title' => 'Detail Page',
+                     'aspectRatios' => [
+                         '943x419',
+                     ],
+                 ],
+                 'teaser_featured' => [
+                     'title' => 'Featured Teaser',
+                     'aspectRatios' => [
+                         '748x420',
+                     ],
+                 ],
+                 'teaser' => [
+                     'title' => 'Teaser',
+                     'aspectRatios' => [
+                         '360x240',
+                     ],
+                     'coverAreas' => [
+                         [
+                             'x' => 0.2,
+                             'y' => 0.7,
+                             'width' => 0.8,
+                             'height' => 0.3,
+                         ],
+                     ],
+                 ],
+             ],
+         ],
+     ],
+     'tx_news_domain_model_news'
+ );
+ ````
+
+The first level of the array holds the record type for which you want to configure image cropping. `__default` means the config is valid
+for all record types. For `pages` you can use doktype constants such as `\TYPO3\CMS\Frontend\Page\PageRepository::DOKTYPE_DEFAULT`, for
+`tt_content` you would use the `CType` of the content element you want to configure.
+
+The second level of the array holds the name of the field you want to configure the cropping for.
+
+The third level holds the _identifier_ of the crop variant. You can choose it arbitrarily, but you'll need to reference it later in
+TypoScript so keep it without spaces or dots. 
+
+The fourth level holds a config array with following options:
+
+* **title**: A human readable title of the crop variant to be displayed to the backend user. Optional, by default the *identifier* is used with `ucfirst()`.
+* **aspectRatios**: Array of aspect ratios that are valid for this crop variant. An aspect ratio is a string in the form `widthxheight` (e.g. `16x9`). 
+* **coverAreas**: Array of cover areas that apply to this crop variant. A crop variant is configured as an array with the keys `x`, `y`, `width` and `height`. `x` and `y` set the position of the top left corner of a cover area. All values are relative values between 0 and 1.