source: fluida/0.9.6/attachment.php

<?php
/**
 * The template for displaying attachments.
 *
 * @package Fluida
 */

get_header(); ?>

<div id="container" class="single-attachment <?php echo fluida_get_layout_class(); ?>">
        <main id="main" role="main" class="main">
                        
        <?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>

                <article id="post-<?php the_ID(); ?>" <?php post_class("post"); cryout_schema_microdata('article');?>>
                        
                        <header>
                                <?php cryout_post_title_hook(); ?>
                                <h1 class="entry-title" <?php cryout_schema_microdata('entry-title'); ?>><?php the_title(); ?></h1>
                                <div class="entry-meta">
                                        <?php cryout_post_meta_hook();
                                        echo "<span class=\"attach-size\">";
                                                if ( wp_attachment_is_image() ) {
                                                        $metadata = wp_get_attachment_metadata();
                                                        printf( __( 'Full size is %s pixels', 'fluida'),
                                                                sprintf( '<a href="%1$s" title="%2$s">%3$s &times; %4$s</a>',
                                                                        wp_get_attachment_url(),
                                                                        esc_attr( __('Link to full-size image', 'fluida') ),
                                                                        $metadata['width'],
                                                                        $metadata['height']
                                                                )
                                                        );
                                                }
                                        echo "</span>"; ?>
                                </div><!-- .entry-meta -->
                        </header>

                        <div class="entry-content" <?php cryout_schema_microdata('entry-content'); ?>>
                                <div class="entry-attachment">
                                
<?php if ( wp_attachment_is_image() ) :
        $attachments = array_values( get_children( array( 'post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID' ) ) );
        foreach ( $attachments as $k => $attachment ) {
                if ( $attachment->ID == $post->ID )
                        break;
        }
        $k++;
        // If there is more than 1 image attachment in a gallery
        if ( count( $attachments ) > 1 ) {
                if ( isset( $attachments[ $k ] ) )
                        // get the URL of the next image attachment
                        $next_attachment_url = get_attachment_link( $attachments[ $k ]->ID );
                else
                        // or get the URL of the first image attachment
                        $next_attachment_url = get_attachment_link( $attachments[ 0 ]->ID );
        } else {
                // or, if there's only 1 image attachment, get the URL of the image
                $next_attachment_url = wp_get_attachment_url();
        }
?>
                                        <p class="attachment">
                                                <a href="<?php echo $next_attachment_url; ?>" title="<?php echo esc_attr( get_the_title() ); ?>" rel="attachment"><?php
                                                        $attachment_size = apply_filters( 'fluida_attachment_size', 900 );
                                                        echo wp_get_attachment_image( $post->ID, array( $attachment_size, 9999 ) ); // filterable image width with, essentially, no limit for image height.?>
                                                </a>
                                        </p>            
                                                
                                        <footer class="entry-meta">
                                                <?php cryout_post_footer_hook(); ?>
                                                <?php if ( ! empty( $post->post_parent ) ) : ?>
                                        <p class="page-title"><a href="<?php echo get_permalink( $post->post_parent ); ?>" title="<?php esc_attr( printf( __( 'Return to %s', 'fluida' ), get_the_title( $post->post_parent ) ) ); ?>" ><?php
                                                /* translators: %s - title of parent post */
                                                printf( '&laquo; %s', get_the_title( $post->post_parent ) );
                                        ?></a></p>
                                <?php endif; ?>
                                        </footer><!-- .entry-meta -->   
                                                
<?php else : ?>
                                        <a href="<?php echo wp_get_attachment_url(); ?>" title="<?php echo esc_attr( get_the_title() ); ?>" rel="attachment"><?php echo basename( get_permalink() ); ?></a>
<?php endif; ?>
                                </div><!-- .entry-attachment -->
                                                
                                                
                                <div class="entry-caption">
                                        <?php if ( !empty( $post->post_excerpt ) ) the_excerpt(); ?>
                                </div>


                        </div><!-- .entry-content -->

                        <div id="nav-below" class="navigation">
                                <div class="nav-previous"><?php previous_image_link( false,'<i class="icon-left-dir"></i>'.__("Previous image","fluida")); ?></div>
                                <div class="nav-next"><?php next_image_link( false,__("Next image","fluida").'<i class="icon-right-dir"></i>' ); ?></div>
                        </div><!-- #nav-below -->                                       
                
                <?php  comments_template( '', true ); ?>                
                                        
                </article><!-- #post-## -->


<?php endwhile; ?>

                        

                        </main><!-- #main -->
                <?php fluida_get_sidebar(); ?>
                </div><!-- #container -->

<?php get_footer(); ?>