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<?php
/**
* Tiled Gallery Classes
*
* @link catchplugins.com
* @since 1.0.0
*
* @package Catch_Gallery
* @subpackage Catch_Gallery/inc
* @author catchplugins.com <info@catchplugins.com>
*/
/**
* Include the class file containing methods for rounding constrained array elements.
* Here the constrained array element is the dimension of a row, group or an image in the tiled gallery.
*/
include_once plugin_dir_path( __FILE__ ) . '../math/class-constrained-array-rounding.php';
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery' ) ) :
class Catch_Gallery_Tiled_Gallery {
public function __construct() {
add_filter( 'jetpack_gallery_types', array( $this, 'jetpack_gallery_types' ), 9 );
}
public function set_atts( $atts ) {
global $post;
$this->atts = shortcode_atts(
array(
'columns' => 3,
'size' => 'full',
'order' => 'ASC',
'orderby' => 'menu_order ID',
'id' => $post->ID,
'include' => '',
'exclude' => '',
'type' => '',
'grayscale' => false,
'link' => '',
),
$atts
);
$this->atts['id'] = (int) $this->atts['id'];
$this->float = is_rtl() ? 'right' : 'left';
if ( ! $this->atts['orderby'] ) {
$this->atts['orderby'] = sanitize_sql_orderby( $this->atts['orderby'] );
if ( ! $this->atts['orderby'] ) {
$this->atts['orderby'] = 'menu_order ID';
}
}
if ( 'RAND' == $this->atts['order'] ) {
$this->atts['orderby'] = 'none';
}
}
public function get_attachments() {
extract( $this->atts );
if ( ! empty( $include ) ) {
$include = preg_replace( '/[^0-9,]+/', '', $include );
$_attachments = get_posts(
array(
'include' => $include,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => $order,
'orderby' => $orderby,
)
);
$attachments = array();
foreach ( $_attachments as $key => $val ) {
$attachments[ $val->ID ] = $_attachments[ $key ];
}
} elseif ( ! empty( $exclude ) ) {
$exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
$attachments = get_children(
array(
'post_parent' => $id,
'exclude' => $exclude,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => $order,
'orderby' => $orderby,
)
);
} else {
$attachments = get_children(
array(
'post_parent' => $id,
'post_status' => 'inherit',
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => $order,
'orderby' => $orderby,
)
);
}
return $attachments;
}
public function get_attachment_link( $attachment_id, $orig_file ) {
if ( isset( $this->atts['link'] ) && $this->atts['link'] == 'file' ) {
return $orig_file;
} else {
return get_attachment_link( $attachment_id );
}
}
public function column_style() {
wp_enqueue_style( 'catch-gallery-column', plugin_dir_url( __FILE__ ) . '../css/column.css', array(), CATCH_GALLERY_VERSION );
}
public function default_scripts_and_styles() {
wp_enqueue_script( 'tiled-gallery', plugin_dir_url( __FILE__ ) . '../js/tiled-gallery.js', array( 'jquery' ) );
wp_enqueue_style( 'tiled-gallery', plugin_dir_url( __FILE__ ) . '../css/tiled-gallery.css', array(), CATCH_GALLERY_VERSION );
wp_style_add_data( 'tiled-gallery', 'rtl', 'replace' );
}
public function gallery_shortcode( $val, $atts ) {
if ( ! empty( $val ) ) { // something else is overriding post_gallery, like a custom VIP shortcode
return $val;
}
global $post;
$this->set_atts( $atts );
$attachments = $this->get_attachments();
if ( empty( $attachments ) ) {
return '';
}
if ( is_feed() || defined( 'IS_HTML_EMAIL' ) ) {
return '';
}
//Columns css
$this->column_style();
if ( method_exists( $this, $this->atts['type'] . '_talavera' ) ) {
// Enqueue styles and scripts
$this->default_scripts_and_styles();
$gallery_html = call_user_func_array( array( $this, $this->atts['type'] . '_talavera' ), array( $attachments ) );
if ( $gallery_html && class_exists( 'Jetpack' ) && class_exists( 'Jetpack_Photon' ) ) {
// Tiled Galleries in Jetpack require that Photon be active.
// If it's not active, run it just on the gallery output.
if ( ! in_array( 'photon', Jetpack::get_active_modules() ) ) {
$gallery_html = Jetpack_Photon::filter_the_content( $gallery_html );
}
}
return $gallery_html;
}
return '';
}
public function vt_resize( $attach_id = null, $img_url = null, $width=null, $height=null, $crop = false ) {
// this is an attachment, so we have the ID
if ( $attach_id ) {
$image_src = wp_get_attachment_image_src( $attach_id, 'full' );
$file_path = get_attached_file( $attach_id );
// this is not an attachment, let's use the image url
} elseif ( $img_url ) {
$file_path = parse_url( $img_url );
$file_path = ltrim( $file_path['path'], '/' );
//$file_path = rtrim( ABSPATH, '/' ).$file_path['path'];
$orig_size = getimagesize( $file_path );
$image_src[0] = $img_url;
$image_src[1] = $orig_size[0];
$image_src[2] = $orig_size[1];
}
$file_info = pathinfo( $file_path );
$extension = '.' . $file_info['extension'];
// the image path without the extension
$no_ext_path = $file_info['dirname'] . '/' . $file_info['filename'];
$cropped_img_path = $no_ext_path . '-' . $width . 'x' . $height . $extension;
// checking if the file size is larger than the target size
// if it is smaller or the same size, stop right here and return
if ( $image_src[1] > $width || $image_src[2] > $height ) {
// the file is larger, check if the resized version already exists (for crop = true but will also work for crop = false if the sizes match)
if ( file_exists( $cropped_img_path ) ) {
$cropped_img_url = str_replace( basename( $image_src[0] ), basename( $cropped_img_path ), $image_src[0] );
$vt_image = array(
'url' => $cropped_img_url,
'width' => $width,
'height' => $height,
);
return $vt_image;
}
// crop = false
if ( $crop == false ) {
// calculate the size proportionaly
$proportional_size = wp_constrain_dimensions( $image_src[1], $image_src[2], $width, $height );
$resized_img_path = $no_ext_path . '-' . $proportional_size[0] . 'x' . $proportional_size[1] . $extension;
// checking if the file already exists
if ( file_exists( $resized_img_path ) ) {
$resized_img_url = str_replace( basename( $image_src[0] ), basename( $resized_img_path ), $image_src[0] );
$vt_image = array(
'url' => $resized_img_url,
// Commented out dimentions as it was unnecessary
// 'width' => $new_img_size[0],
// 'height' => $new_img_size[1],
);
return $vt_image;
}
}
// no cached files - let's finally resize it
$tp_image = wp_get_image_editor( $file_path );
if ( ! is_wp_error( $tp_image ) ) {
$tp_image->resize( $width, $height, $crop );
$new_img_array = $tp_image->save();
}
$new_img_size = getimagesize( $new_img_array['path'] );
$new_img = str_replace( basename( $image_src[0] ), basename( $new_img_array['path'] ), $image_src[0] );
// resized output
$vt_image = array(
'url' => $new_img,
'width' => $new_img_size[0],
'height' => $new_img_size[1],
);
return $vt_image;
}
// default output - without resizing
$vt_image = array(
'url' => $image_src[0],
'width' => $image_src[1],
'height' => $image_src[2],
);
return $vt_image;
}
public function rectangular_talavera( $attachments ) {
$grouper = new Catch_Gallery_Tiled_Gallery_Grouper( $attachments );
Catch_Gallery_Tiled_Gallery_Shape::reset_last_shape();
$output = $this->generate_carousel_container();
foreach ( $grouper->grouped_images as $row ) {
$output .= '<div class="gallery-row" style="' . esc_attr( 'width: ' . $row->width . 'px; height: ' . ( $row->height - 4 ) . 'px;' ) . '">';
foreach ( $row->groups as $group ) {
$count = count( $group->images );
$output .= '<div class="gallery-group images-' . esc_attr( $count ) . '" style="' . esc_attr( 'width: ' . $group->width . 'px; height: ' . $group->height . 'px;' ) . '">';
foreach ( $group->images as $image ) {
$img_size = array(
'thumbnail' => array(
'width' => 150,
'height' => 150,
),
'medium' => array(
'width' => 300,
'height' => 300,
),
'large' => array(
'width' => 1024,
'height' => 1024,
),
'full' => array(
'width' => $image->width_orig,
'height' => $image->height_orig,
),
);
$size = $this->atts['size'];
$image_title = $image->post_title;
$orig_file = wp_get_attachment_url( $image->ID );
$link = $this->get_attachment_link( $image->ID, $orig_file );
// $img_src = $this->vt_resize( $image->ID,'' , $image->width, $image->height, true );
$img_src = $this->vt_resize( $image->ID, '', $img_size[ $size ]['width'], $img_size[ $size ]['height'], false );
$output .= '<div class="tiled-gallery-item tiled-gallery-item-' . esc_attr( $size ) . '"><a href="' . esc_url( $link ) . '"><img ' . $this->generate_carousel_image_args( $image ) . ' src="' . esc_url( $img_src['url'] ) . '" width="' . esc_attr( $image->width ) . '" height="' . esc_attr( $image->height ) . '" align="left" title="' . esc_attr( $image_title ) . '" /></a>';
if ( $this->atts['grayscale'] == true ) {
$img_src_grayscale = jetpack_photon_url( $img_src['url'], array( 'filter' => 'grayscale' ) );
$output .= '<a href="' . esc_url( $link ) . '"><img ' . $this->generate_carousel_image_args( $image ) . ' class="grayscale" src="' . esc_url( $img_src_grayscale ) . '" width="' . esc_attr( $image->width ) . '" height="' . esc_attr( $image->height ) . '" align="left" title="' . esc_attr( $image_title ) . '" /></a>';
}
if ( trim( $image->post_excerpt ) ) {
$output .= '<div class="tiled-gallery-caption">' . wptexturize( $image->post_excerpt ) . '</div>';
}
$output .= '</div>';
}
$output .= '</div>';
}
$output .= '</div>';
}
$output .= '</div>';
return $output;
}
public function square_talavera( $attachments ) {
$content_width = self::get_content_width();
$images_per_row = $this->atts['columns'];
$margin = 2;
$margin_space = ( $images_per_row * $margin ) * 2;
$size = floor( ( $content_width - $margin_space ) / $images_per_row );
$remainder = count( $attachments ) % $images_per_row;
if ( $remainder > 0 ) {
$remainder_space = ( $remainder * $margin ) * 2;
$remainder_size = ceil( ( $content_width - $remainder_space - $margin ) / $remainder );
}
$output = $this->generate_carousel_container();
$c = 1;
foreach ( $attachments as $image ) {
if ( $remainder > 0 && $c <= $remainder ) {
$img_size = $remainder_size;
} else {
$img_size = $size;
}
$img_dimensions = wp_get_attachment_image_src( $image->ID, 'full' );
$target_size = ( $img_dimensions[1] > $img_dimensions[2] ) ? $img_dimensions[2] : $img_dimensions[1];
$size_array = array(
'thumbnail' => ( $target_size < 150 ) ? $target_size : 150,
'medium' => ( $target_size < 300 ) ? $target_size : 300,
'large' => ( $target_size < 1024 ) ? $target_size : 1024,
);
$size_name = $this->atts['size'];
if ( 'full' === $size_name ) {
$size_array['full'] = $target_size;
}
$image_size = $size_array[ $size_name ];
$img_src = $this->vt_resize( $image->ID, '', $image_size, $image_size, true );
$orig_file = wp_get_attachment_url( $image->ID );
$link = $this->get_attachment_link( $image->ID, $orig_file );
$image_title = $image->post_title;
$output .= '<div class="tiled-gallery-item calling-this">';
$output .= '<a border="0" href="' . esc_url( $link ) . '"><img ' . $this->generate_carousel_image_args( $image ) . ' style="' . esc_attr( 'margin: ' . $margin . 'px' ) . '" src="' . $img_src['url'] . '" width=' . esc_attr( $img_size ) . ' height=' . esc_attr( $img_size ) . ' title="' . esc_attr( $image_title ) . '" /></a>';
// Grayscale effect
if ( $this->atts['grayscale'] == true ) {
$src = urlencode( $image->guid );
$output .= '<a border="0" href="' . esc_url( $link ) . '"><img ' . $this->generate_carousel_image_args( $image ) . ' style="margin: 2px" class="grayscale" src="' . esc_url( 'http://en.wordpress.com/imgpress?url=' . urlencode( $image->guid ) . '&resize=' . $img_size . ',' . $img_size . '&filter=grayscale' ) . '" width=' . esc_attr( $img_size ) . ' height=' . esc_attr( $img_size ) . ' title="' . esc_attr( $image_title ) . '" /></a>';
}
// Captions
if ( trim( $image->post_excerpt ) ) {
$output .= '<div class="tiled-gallery-caption">' . wptexturize( $image->post_excerpt ) . '</div>';
}
$output .= '</div>';
$c ++;
}
$output .= '</div>';
return $output;
}
public function circle_talavera( $attachments ) {
return $this->square_talavera( $attachments );
}
public function rectangle_talavera( $attachments ) {
return $this->rectangular_talavera( $attachments );
}
function generate_carousel_container() {
global $post;
$html = '<div ' . $this->gallery_classes() . ' data-original-width="' . esc_attr( self::get_content_width() ) . '">';
$blog_id = (int) get_current_blog_id();
$extra_data = array(
'data-carousel-extra' => array(
'blog_id' => $blog_id,
'permalink' => get_permalink( $post->ID ),
),
);
foreach ( (array) $extra_data as $data_key => $data_values ) {
$html = str_replace( '<div ', '<div ' . esc_attr( $data_key ) . "='" . json_encode( $data_values ) . "' ", $html );
}
return $html;
}
function generate_carousel_image_args( $image ) {
$attachment_id = $image->ID;
$orig_file = wp_get_attachment_url( $attachment_id );
$meta = wp_get_attachment_metadata( $attachment_id );
$size = isset( $meta['width'] ) ? intval( $meta['width'] ) . ',' . intval( $meta['height'] ) : '';
$img_meta = ( ! empty( $meta['image_meta'] ) ) ? (array) $meta['image_meta'] : array();
$comments_opened = intval( comments_open( $attachment_id ) );
$medium_file_info = wp_get_attachment_image_src( $attachment_id, 'medium' );
$medium_file = isset( $medium_file_info[0] ) ? $medium_file_info[0] : '';
$large_file_info = wp_get_attachment_image_src( $attachment_id, 'large' );
$large_file = isset( $large_file_info[0] ) ? $large_file_info[0] : '';
$attachment_title = wptexturize( $image->post_title );
$attachment_desc = wpautop( wptexturize( $image->post_content ) );
// Not yet providing geo-data, need to "fuzzify" for privacy
if ( ! empty( $img_meta ) ) {
foreach ( $img_meta as $k => $v ) {
if ( 'latitude' == $k || 'longitude' == $k ) {
unset( $img_meta[ $k ] );
}
}
}
//$img_meta = json_encode( array_map( 'strval', $img_meta ) );
$img_meta = json_encode( array_map( 'strval', array_filter( $img_meta, 'is_scalar' ) ) );
$output = sprintf(
'data-attachment-id="%1$d" data-orig-file="%2$s" data-orig-size="%3$s" data-comments-opened="%4$s" data-image-meta="%5$s" data-image-title="%6$s" data-image-description="%7$s" data-medium-file="%8$s" data-large-file="%9$s"',
esc_attr( $attachment_id ),
esc_url( wp_get_attachment_url( $attachment_id ) ),
esc_attr( $size ),
esc_attr( $comments_opened ),
esc_attr( $img_meta ),
esc_attr( $attachment_title ),
esc_attr( $attachment_desc ),
esc_url( $medium_file ),
esc_url( $large_file )
);
return $output;
}
public function gallery_classes() {
$classes = 'class="tiled-gallery type-' . esc_attr( $this->atts['type'] ) . '"';
return $classes;
}
public static function gallery_already_redefined() {
global $shortcode_tags;
if ( ! isset( $shortcode_tags['gallery'] ) || $shortcode_tags['gallery'] !== 'gallery_shortcode' ) {
return true;
}
}
public static function init() {
if ( self::gallery_already_redefined() ) {
return;
}
$gallery = new Catch_Gallery_Tiled_Gallery;
add_filter( 'post_gallery', array( $gallery, 'gallery_shortcode' ), 1001, 2 );
}
public static function get_content_width() {
global $content_width;
$tiled_gallery_content_width = $content_width;
if ( ! $tiled_gallery_content_width ) {
$tiled_gallery_content_width = 500;
}
return apply_filters( 'tiled_gallery_content_width', $tiled_gallery_content_width );
}
/**
* Media UI integration
*/
function jetpack_gallery_types( $types ) {
$types['rectangular'] = esc_html__( 'Tiled Mosaic', 'catch-gallery' );
$types['square'] = esc_html__( 'Square Tiles', 'catch-gallery' );
$types['circle'] = esc_html__( 'Circles', 'catch-gallery' );
return $types;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Shape' ) ) :
class Catch_Gallery_Tiled_Gallery_Shape {
static $shapes_used = array();
public function __construct( $images ) {
$this->images = $images;
$this->images_left = count( $images );
}
public function sum_ratios( $number_of_images = 3 ) {
return array_sum( array_slice( wp_list_pluck( $this->images, 'ratio' ), 0, $number_of_images ) );
}
public function next_images_are_symmetric() {
return $this->images_left > 2 && $this->images[0]->ratio == $this->images[2]->ratio;
}
public function is_not_as_previous( $n = 1 ) {
return ! in_array( get_class( $this ), array_slice( self::$shapes_used, -$n ) );
}
public function is_wide_theme() {
global $content_width;
return $content_width > 1000;
}
public static function set_last_shape( $last_shape ) {
self::$shapes_used[] = $last_shape;
}
public static function reset_last_shape() {
self::$shapes_used = array();
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Three' ) ) :
class Catch_Gallery_Tiled_Gallery_Three extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 1, 1 );
public function is_possible() {
$ratio = $this->sum_ratios( 3 );
return $this->images_left > 2 && $this->is_not_as_previous() &&
( ( $ratio < 2.5 ) || ( $ratio < 5 && $this->next_images_are_symmetric() ) || $this->is_wide_theme() );
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Four' ) ) :
class Catch_Gallery_Tiled_Gallery_Four extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 1, 1, 1 );
public function is_possible() {
return $this->is_not_as_previous() && $this->sum_ratios( 4 ) < 3.5 &&
( $this->images_left == 4 || ( $this->images_left != 8 && $this->images_left > 5 ) );
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Five' ) ) :
class Catch_Gallery_Tiled_Gallery_Five extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 1, 1, 1, 1 );
public function is_possible() {
return $this->is_wide_theme() && $this->is_not_as_previous() && $this->sum_ratios( 5 ) < 5 &&
( $this->images_left == 5 || ( $this->images_left != 10 && $this->images_left > 6 ) );
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Two_One' ) ) :
class Catch_Gallery_Tiled_Gallery_Two_One extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 2, 1 );
public function is_possible() {
return $this->is_not_as_previous( 3 ) && $this->images_left >= 2 &&
$this->images[2]->ratio < 1.6 && $this->images[0]->ratio >= 0.9 && $this->images[1]->ratio >= 0.9;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_One_Two' ) ) :
class Catch_Gallery_Tiled_Gallery_One_Two extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 2 );
public function is_possible() {
return $this->is_not_as_previous( 3 ) && $this->images_left >= 2 &&
$this->images[0]->ratio < 1.6 && $this->images[1]->ratio >= 0.9 && $this->images[2]->ratio >= 0.9;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_One_Three' ) ) :
class Catch_Gallery_Tiled_Gallery_One_Three extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 3 );
public function is_possible() {
return $this->is_not_as_previous() && $this->images_left >= 3 &&
$this->images[0]->ratio < 0.8 && $this->images[1]->ratio >= 0.9 && $this->images[2]->ratio >= 0.9;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Symmetric_Row' ) ) :
class Catch_Gallery_Tiled_Gallery_Symmetric_Row extends Catch_Gallery_Tiled_Gallery_Shape {
public $shape = array( 1, 2, 1 );
public function is_possible() {
return $this->is_not_as_previous() && $this->images_left >= 3 && $this->images_left != 5 &&
$this->images[0]->ratio < 0.8 && $this->images[0]->ratio == $this->images[3]->ratio;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Grouper' ) ) :
class Catch_Gallery_Tiled_Gallery_Grouper {
public $margin = 4;
public function __construct( $attachments ) {
$content_width = Catch_Gallery_Tiled_Gallery::get_content_width();
//$ua_info = new Jetpack_User_Agent_Info();
$this->last_shape = '';
$this->images = $this->get_images_with_sizes( $attachments );
$this->grouped_images = $this->get_grouped_images();
$this->apply_content_width( $content_width - 5 ); //reduce the margin hack to 5px. It will be further reduced when we fix more themes and the rounding error.
}
public function get_current_row_size() {
$images_left = count( $this->images );
if ( $images_left < 3 ) {
return array_fill( 0, $images_left, 1 );
}
foreach ( array( 'One_Three', 'One_Two', 'Five', 'Four', 'Three', 'Two_One', 'Symmetric_Row' ) as $shape_name ) {
$class_name = "Catch_Gallery_Tiled_Gallery_$shape_name";
$shape = new $class_name( $this->images );
if ( $shape->is_possible() ) {
Catch_Gallery_Tiled_Gallery_Shape::set_last_shape( $class_name );
return $shape->shape;
}
}
Catch_Gallery_Tiled_Gallery_Shape::set_last_shape( 'Two' );
return array( 1, 1 );
}
public function get_images_with_sizes( $attachments ) {
$images_with_sizes = array();
foreach ( $attachments as $image ) {
$meta = wp_get_attachment_metadata( $image->ID );
$image->width_orig = ( $meta['width'] > 0 ) ? $meta['width'] : 1;
$image->height_orig = ( $meta['height'] > 0 ) ? $meta['height'] : 1;
$image->ratio = $image->width_orig / $image->height_orig;
$image->ratio = $image->ratio ? $image->ratio : 1;
$images_with_sizes[] = $image;
}
return $images_with_sizes;
}
public function read_row() {
$vector = $this->get_current_row_size();
$row = array();
foreach ( $vector as $group_size ) {
$row[] = new Catch_Gallery_Tiled_Gallery_Group( array_splice( $this->images, 0, $group_size ) );
}
return $row;
}
public function get_grouped_images() {
$grouped_images = array();
while ( ! empty( $this->images ) ) {
$grouped_images[] = new Catch_Gallery_Tiled_Gallery_Row( $this->read_row() );
}
return $grouped_images;
}
// todo: split in functions
// todo: do not stretch images
public function apply_content_width( $width ) {
foreach ( $this->grouped_images as $row ) {
$row->width = $width;
$row->raw_height = 1 / $row->ratio * ( $width - $this->margin * ( count( $row->groups ) - $row->weighted_ratio ) );
$row->height = round( $row->raw_height );
$this->calculate_group_sizes( $row );
}
}
public function calculate_group_sizes( $row ) {
// Storing the calculated group heights in an array for rounding them later while preserving their sum
// This fixes the rounding error that can lead to a few ugly pixels sticking out in the gallery
$group_widths_array = array();
foreach ( $row->groups as $group ) {
$group->height = $row->height;
// Storing the raw calculations in a separate property to prevent rounding errors from cascading down and for diagnostics
$group->raw_width = ( $row->raw_height - $this->margin * count( $group->images ) ) * $group->ratio + $this->margin;
$group_widths_array[] = $group->raw_width;
}
$rounded_group_widths_array = Catch_Gallery_Constrained_Array_Rounding::get_rounded_constrained_array( $group_widths_array, $row->width );
foreach ( $row->groups as $group ) {
$group->width = array_shift( $rounded_group_widths_array );
$this->calculate_image_sizes( $group );
}
}
public function calculate_image_sizes( $group ) {
// Storing the calculated image heights in an array for rounding them later while preserving their sum
// This fixes the rounding error that can lead to a few ugly pixels sticking out in the gallery
$image_heights_array = array();
foreach ( $group->images as $image ) {
$image->width = $group->width - $this->margin;
// Storing the raw calculations in a separate property for diagnostics
$image->raw_height = ( $group->raw_width - $this->margin ) / $image->ratio;
$image_heights_array[] = $image->raw_height;
}
$image_height_sum = $group->height - count( $image_heights_array ) * $this->margin;
$rounded_image_heights_array = Catch_Gallery_Constrained_Array_Rounding::get_rounded_constrained_array( $image_heights_array, $image_height_sum );
foreach ( $group->images as $image ) {
$image->height = array_shift( $rounded_image_heights_array );
}
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Row' ) ) :
class Catch_Gallery_Tiled_Gallery_Row {
public function __construct( $groups ) {
$this->groups = $groups;
$this->ratio = $this->get_ratio();
$this->weighted_ratio = $this->get_weighted_ratio();
}
public function get_ratio() {
$ratio = 0;
foreach ( $this->groups as $group ) {
$ratio += $group->ratio;
}
return $ratio > 0 ? $ratio : 1;
}
public function get_weighted_ratio() {
$weighted_ratio = 0;
foreach ( $this->groups as $group ) {
$weighted_ratio += $group->ratio * count( $group->images );
}
return $weighted_ratio > 0 ? $weighted_ratio : 1;
}
}
endif;
if ( ! class_exists( 'Catch_Gallery_Tiled_Gallery_Group' ) ) :
class Catch_Gallery_Tiled_Gallery_Group {
public function __construct( $images ) {
$this->images = $images;
$this->ratio = $this->get_ratio();
}
public function get_ratio() {
$ratio = 0;
foreach ( $this->images as $image ) {
if ( $image->ratio ) {
$ratio += 1 / $image->ratio;
}
}
if ( ! $ratio ) {
return 1;
}
return 1 / $ratio;
}
}
endif;
add_action( 'init', array( 'Catch_Gallery_Tiled_Gallery', 'init' ) );