| public getMaxWidth ( integer $width, integer $height, array $transformations ) : array | null | ||
| $width | integer | The width of the existing image |
| $height | integer | The height of the existing image |
| $transformations | array | Transformations from the URL |
| Результат | array | null | Returns an array with a single element where the index is the index of the transformation that has the maximum width, and the value of the width |
public function getMaxWidth($width, $height, array $transformations)
{
// Possible widths to use
$widths = [];
// Extracts from the image
$extracts = [];
// Calculate the aspect ratio in case some transformations only specify height
$ratio = $width / $height;
foreach ($transformations as $i => $transformation) {
$name = $transformation['name'];
$params = $transformation['params'];
if ($name === 'maxSize') {
// MaxSize transformation
if (isset($params['width'])) {
// width detected
$widths[$i] = (int) $params['width'];
} else {
if (isset($params['height'])) {
// height detected, calculate ratio
$widths[$i] = (int) $params['height'] * $ratio;
}
}
} else {
if ($name === 'resize') {
// Resize transformation
if (isset($params['width'])) {
// width detected
$widths[$i] = (int) $params['width'];
} else {
if (isset($params['height'])) {
// height detected, calculate ratio
$widths[$i] = (int) $params['height'] * $ratio;
}
}
} else {
if ($name === 'thumbnail') {
// Thumbnail transformation
if (isset($params['width'])) {
// Width have been specified
$widths[$i] = (int) $params['width'];
} else {
if (isset($params['height']) && isset($params['fit']) && $params['fit'] === 'inset') {
// Height have been specified, and the fit mode is inset, calculate width
$widths[$i] = (int) $params['height'] * $ratio;
} else {
// No width or height/inset fit combo. Use default width for thumbnails
$widths[$i] = 50;
}
}
} else {
if ($name === 'crop' && empty($widths)) {
// Crop transformation
$extracts[$i] = $params;
}
}
}
}
}
if ($widths && !empty($extracts)) {
// If we are fetching extracts, we need a larger version of the image
$extract = reset($extracts);
// Find the correct scaling factor for the extract
$extractFactor = $width / $extract['width'];
$maxWidth = max($widths);
// Find the new max width
$maxWidth = $maxWidth * $extractFactor;
return [key($extracts) => $maxWidth];
}
if ($widths) {
// Find the max width in the set, and return it along with the index of the
// transformation that first referenced it
$maxWidth = max($widths);
return [array_search($maxWidth, $widths) => $maxWidth];
}
return null;
} /**
* @dataProvider getTransformations
*/
public function testCanGetTheMinWidthFromASetOfTransformations($width, $height, array $transformations, $maxWidth)
{
$calculatedMax = $this->listener->getMaxWidth($width, $height, $transformations);
$this->assertSame(is_null($maxWidth) ? null : array_map('intval', $maxWidth), is_null($calculatedMax) ? null : array_map('intval', $calculatedMax), 'Could not figure out the minimum width');
}
