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<?php |
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/** |
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* Packed image gallery. All images adjusted to be same height. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* http://www.gnu.org/copyleft/gpl.html |
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* |
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* @file |
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*/ |
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class PackedImageGallery extends TraditionalImageGallery { |
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function __construct( $mode = 'traditional', IContextSource $context = null ) { |
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parent::__construct( $mode, $context ); |
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// Does not support per row option. |
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$this->mPerRow = 0; |
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} |
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/** |
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* We artificially have 1.5 the resolution neccessary so that |
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* we can scale it up by that much on the client side, without |
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* worrying about requesting a new image. |
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*/ |
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const SCALE_FACTOR = 1.5; |
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protected function getVPad( $boxHeight, $thumbHeight ) { |
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return ( $this->getThumbPadding() + $boxHeight - $thumbHeight / self::SCALE_FACTOR ) / 2; |
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} |
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protected function getThumbPadding() { |
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return 0; |
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} |
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protected function getGBPadding() { |
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return 2; |
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} |
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/** |
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* @param File $img The file being transformed. May be false |
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* @return array |
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*/ |
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protected function getThumbParams( $img ) { |
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if ( $img && $img->getMediaType() === MEDIATYPE_AUDIO ) { |
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$width = $this->mWidths; |
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} else { |
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// We want the width not to be the constraining |
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// factor, so use random big number. |
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$width = $this->mHeights * 10 + 100; |
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} |
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// self::SCALE_FACTOR so the js has some room to manipulate sizes. |
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return [ |
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'width' => $width * self::SCALE_FACTOR, |
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'height' => $this->mHeights * self::SCALE_FACTOR, |
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]; |
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} |
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protected function getThumbDivWidth( $thumbWidth ) { |
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// Require at least 60px wide, so caption is wide enough to work. |
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if ( $thumbWidth < 60 * self::SCALE_FACTOR ) { |
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$thumbWidth = 60 * self::SCALE_FACTOR; |
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} |
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return $thumbWidth / self::SCALE_FACTOR + $this->getThumbPadding(); |
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} |
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/** |
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* @param MediaTransformOutput|bool $thumb The thumbnail, or false if no |
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* thumb (which can happen) |
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* @return float |
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*/ |
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protected function getGBWidth( $thumb ) { |
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$thumbWidth = $thumb ? $thumb->getWidth() : $this->mWidths * self::SCALE_FACTOR; |
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return $this->getThumbDivWidth( $thumbWidth ) + $this->getGBPadding(); |
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} |
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protected function adjustImageParameters( $thumb, &$imageParameters ) { |
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// Re-adjust back to normal size. |
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$imageParameters['override-width'] = ceil( $thumb->getWidth() / self::SCALE_FACTOR ); |
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$imageParameters['override-height'] = ceil( $thumb->getHeight() / self::SCALE_FACTOR ); |
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} |
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/** |
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* Add javascript which auto-justifies the rows by manipulating the image sizes. |
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* Also ensures that the hover version of this degrades gracefully. |
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* @return array |
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*/ |
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protected function getModules() { |
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return [ 'mediawiki.page.gallery' ]; |
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} |
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/** |
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* Do not support per-row on packed. It really doesn't work |
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* since the images have varying widths. |
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* @param int $num |
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*/ |
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public function setPerRow( $num ) { |
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return; |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: