PackedImageGallery.php

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<?php
class PackedImageGallery extends TraditionalImageGallery {
    function __construct( $mode = 'traditional', IContextSource $context = null ) {
        parent::__construct( $mode, $context );
        // Does not support per row option.
        $this->mPerRow = 0;
    }

    const SCALE_FACTOR = 1.5;

    protected function getVPad( $boxHeight, $thumbHeight ) {
        return ( $this->getThumbPadding() + $boxHeight - $thumbHeight / self::SCALE_FACTOR ) / 2;
    }

    protected function getThumbPadding() {
        return 0;
    }

    protected function getGBPadding() {
        return 2;
    }

    protected function getThumbParams( $img ) {
        if ( $img && $img->getMediaType() === MEDIATYPE_AUDIO ) {
            $width = $this->mWidths;
        } else {
            // We want the width not to be the constraining
            // factor, so use random big number.
            $width = $this->mHeights * 10 + 100;
        }

        // self::SCALE_FACTOR so the js has some room to manipulate sizes.
        return [
            'width' => $width * self::SCALE_FACTOR,
            'height' => $this->mHeights * self::SCALE_FACTOR,
        ];
    }

    protected function getThumbDivWidth( $thumbWidth ) {
        // Require at least 60px wide, so caption is wide enough to work.
        if ( $thumbWidth < 60 * self::SCALE_FACTOR ) {
            $thumbWidth = 60 * self::SCALE_FACTOR;
        }

        return $thumbWidth / self::SCALE_FACTOR + $this->getThumbPadding();
    }

    protected function getGBWidth( $thumb ) {
        $thumbWidth = $thumb ? $thumb->getWidth() : $this->mWidths * self::SCALE_FACTOR;

        return $this->getThumbDivWidth( $thumbWidth ) + $this->getGBPadding();
    }

    protected function adjustImageParameters( $thumb, &$imageParameters ) {
        // Re-adjust back to normal size.
        $imageParameters['override-width'] = ceil( $thumb->getWidth() / self::SCALE_FACTOR );
        $imageParameters['override-height'] = ceil( $thumb->getHeight() / self::SCALE_FACTOR );
    }

    protected function getModules() {
        return [ 'mediawiki.page.gallery' ];
    }

    public function setPerRow( $num ) {
        return;
    }
}