1 files changed, 105 insertions, 0 deletions
diff --git a/includes/gallery/PackedImageGallery.php b/includes/gallery/PackedImageGallery.php
new file mode 100644
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+++ b/includes/gallery/PackedImageGallery.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * Packed image gallery. All images adjusted to be same height.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+class PackedImageGallery extends TraditionalImageGallery {
+
+	function __construct( $mode = 'traditional' ) {
+		parent::__construct( $mode );
+		// Does not support per row option.
+		$this->mPerRow = 0;
+	}
+
+	/**
+	 * We artificially have 1.5 the resolution neccessary so that
+	 * we can scale it up by that much on the client side, without
+	 * worrying about requesting a new image.
+	 */
+	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;
+	}
+
+	/**
+	 * @param File $img The file being transformed. May be false
+	 */
+	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 array(
+			'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();
+	}
+
+	/**
+	 * @param MediaTransformOutput|bool $thumb the thumbnail, or false if no thumb (which can happen)
+	 */
+	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 );
+	}
+
+	/**
+	 * Add javascript which auto-justifies the rows by manipulating the image sizes.
+	 * Also ensures that the hover version of this degrades gracefully.
+	 */
+	protected function getModules() {
+		return array( 'mediawiki.page.gallery' );
+	}
+
+	/**
+	 * Do not support per-row on packed. It really doesn't work
+	 * since the images have varying widths.
+	 */
+	public function setPerRow( $num ) {
+		return;
+	}
+}