template-functions-post.php

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				$page_list = array_merge($page_list, $children);
		}
	}
	return $page_list;
}


function &get_pages($args = '') {
	global $wpdb;

	parse_str($args, $r);

	if ( !isset($r['child_of']) )
		$r['child_of'] = 0;
	if ( !isset($r['sort_column']) )
		$r['sort_column'] = 'post_title';
	if ( !isset($r['sort_order']) )
		$r['sort_order'] = 'ASC';

	$exclusions = '';
	if ( !empty($r['exclude']) ) {
		$expages = preg_split('/[\s,]+/',$r['exclude']);
		if ( count($expages) ) {
			foreach ( $expages as $expage ) {
				$exclusions .= ' AND ID <> ' . intval($expage) . ' ';
			}
		}
	}

	$pages = $wpdb->get_results("SELECT * " .
		"FROM $wpdb->posts " .
		"WHERE post_status = 'static' " .
		( (wp_xoops_ismu() && !empty($GLOBALS["wp_xoops_author"])) ? " AND post_author = " . intval($GLOBALS["wp_xoops_author"]) : "" ).
		"$exclusions " .
		"ORDER BY " . $r['sort_column'] . " " . $r['sort_order']);

	if ( empty($pages) )
		return array();

	// Update cache.
	update_page_cache($pages);

	if ( $r['child_of'] )
		$pages = & get_page_children($r['child_of'], $pages);

	return $pages;
}


function wp_list_pages($args = '') {
	parse_str($args, $r);
	if ( !isset($r['depth']) )
		$r['depth'] = 0;
	if ( !isset($r['show_date']) )
		$r['show_date'] = '';
	if ( !isset($r['child_of']) )
		$r['child_of'] = 0;
	if ( !isset($r['title_li']) )
		$r['title_li'] = __('Pages');
	if ( !isset($r['echo']) )
		$r['echo'] = 1;

	$output = '';

	// Query pages.
	$pages = & get_pages($args);
	if ( $pages ) {

		if ( $r['title_li'] )
			$output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';

		// Now loop over all pages that were selected
		$page_tree = Array();
		foreach ( $pages as $page ) {
			// set the title for the current page
			$page_tree[$page->ID]['title'] = $page->post_title;
			$page_tree[$page->ID]['name'] = $page->post_name;

			// set the selected date for the current page
			// depending on the query arguments this is either
			// the createtion date or the modification date
			// as a unix timestamp. It will also always be in the
			// ts field.
			if ( !empty($r['show_date']) ) {
				if ( 'modified' == $r['show_date'] )
					$page_tree[$page->ID]['ts'] = $page->post_modified;
				else
					$page_tree[$page->ID]['ts'] = $page->post_date;
			}

			// The tricky bit!!
			// Using the parent ID of the current page as the
			// array index we set the curent page as a child of that page.
			// We can now start looping over the $page_tree array
			// with any ID which will output the page links from that ID downwards.
			if ( $page->post_parent != $page->ID)
				$page_tree[$page->post_parent]['children'][] = $page->ID;
		}
		// Output of the pages starting with child_of as the root ID.
		// child_of defaults to 0 if not supplied in the query.
		$output .= _page_level_out($r['child_of'],$page_tree, $r, 0, false);
		if ( $r['title_li'] )
			$output .= '</ul></li>';
	}

	$output = apply_filters('wp_list_pages', $output);

	if ( $r['echo'] )
		echo $output;
	else
		return $output;
}


function _page_level_out($parent, $page_tree, $args, $depth = 0, $echo = true) {
	global $wp_query;
	$queried_obj = $wp_query->get_queried_object();
	$output = '';

	if ( $depth )
		$indent = str_repeat("\t", $depth);
		//$indent = join('', array_fill(0,$depth,"\t"));

	if ( !is_array($page_tree[$parent]['children']) )
		return false;

	foreach ( $page_tree[$parent]['children'] as $page_id ) {
		$cur_page = $page_tree[$page_id];
		$title = $cur_page['title'];

		$css_class = 'page_item';
		if ( $page_id == $queried_obj->ID )
			$css_class .= ' current_page_item';

		$output .= $indent . '<li class="' . $css_class . '"><a href="' . get_page_link($page_id) . '" title="' . wp_specialchars($title) . '">' . $title . '</a>';

		if ( isset($cur_page['ts']) ) {
			$format = get_settings('date_format');
			if ( isset($args['date_format']) )
				$format = $args['date_format'];
			$output .= " " . mysql2date($format, $cur_page['ts']);
		}

		if ( isset($cur_page['children']) && is_array($cur_page['children']) ) {
			$new_depth = $depth + 1;

			if ( !$args['depth'] || $depth < ($args['depth']-1) ) {
				$output .= "$indent<ul>\n";
				$output .= _page_level_out($page_id, $page_tree, $args, $new_depth, false);
				$output .= "$indent</ul>\n";
			}
		}
		$output .= "$indent</li>\n";
	}
	if ( $echo )
		echo $output;
	else
		return $output;
}

function the_attachment_link($id = 0, $fullsize = false, $max_dims = false) {
	echo get_the_attachment_link($id, $fullsize, $max_dims);
}

function get_the_attachment_link($id = 0, $fullsize = false, $max_dims = false) {
	$id = (int) $id;
	$_post = & get_post($id);

	if ( ('attachment' != $_post->post_status) || ('' == $_post->guid) )
		return __('Missing Attachment');

	if (! empty($_post->guid) ) {
		$innerHTML = get_attachment_innerHTML($_post->ID, $fullsize, $max_dims);

		return "<a href=\"{$_post->guid}\" title=\"{$_post->post_title}\" >{$innerHTML}</a>";

	} else {
		$p .= __('Missing attachment');
	}
	return $p;
}

function get_attachment_icon($id = 0, $fullsize = false, $max_dims = false) {
	$id = (int) $id;
	$post = & get_post($id);

	$mime = $post->post_mime_type;

	$imagedata = get_post_meta($post->ID, '_wp_attachment_metadata', true);

	$file = get_post_meta($post->ID, '_wp_attached_file', true);

	if ( !$fullsize && !empty($imagedata['thumb'])
			&& ($thumbfile = str_replace(basename($file), $imagedata['thumb'], $file))
			&& file_exists($thumbfile) ) {

		// We have a thumbnail desired, specified and existing

		$src = str_replace(basename($post->guid), $imagedata['thumb'], $post->guid);
		$src_file = $thumbfile;
		$class = 'attachmentthumb';

	} elseif ( substr($mime, 0, 6) == 'image/'
			&& file_exists($file) ) {

		// We have an image without a thumbnail

		$src = $post->guid;
		$src_file = & $file;
		$class = 'attachmentimage';
	} elseif (! empty($mime) ) {

		// No thumb, no image. We'll look for a mime-related icon instead.
		$icon_dir = apply_filters('icon_dir', get_template_directory().'/images');
		$icon_dir_uri = apply_filters('icon_dir_uri', get_template_directory_uri().'/images');

		$types = array(substr($mime, 0, strpos($mime, '/')), substr($mime, strpos($mime, '/') + 1), str_replace('/', '_', $mime));
		$exts = array('jpg', 'gif', 'png');
		foreach ($types as $type) {
			foreach ($exts as $ext) {
				$src_file = "$icon_dir/$type.$ext";
				if ( file_exists($src_file) ) {
					$src = "$icon_dir_uri/$type.$ext";
					break 2;
				}
			}
		}
	}

	if (! isset($src) )
		return false;

	// Do we need to constrain the image?
	if ( ($max_dims = apply_filters('attachment_max_dims', $max_dims)) && file_exists($src_file) ) {

		$imagesize = getimagesize($src_file);

		if (($imagesize[0] > $max_dims[0]) || $imagesize[1] > $max_dims[1] ) {
			$actual_aspect = $imagesize[0] / $imagesize[1];
			$desired_aspect = $max_dims[0] / $max_dims[1];

			if ( $actual_aspect >= $desired_aspect ) {
				$height = $actual_aspect * $max_dims[0];
				$constraint = "width=\"{$max_dims[0]}\" ";
				$post->iconsize = array($max_dims[0], $height);
			} else {
				$width = $max_dims[1] / $actual_aspect;
				$constraint = "height=\"{$max_dims[1]}\" ";
				$post->iconsize = array($width, $max_dims[1]);
			}
		} else {
			$post->iconsize = array($imagesize[0], $imagesize[1]);
		}
	}

	$icon = "<img src=\"{$src}\" title=\"{$post->post_title}\" alt=\"{$post->post_title}\" {$constraint}/>";

	return apply_filters('attachment_icon', $icon, $post->ID);
}

function get_attachment_innerHTML($id = 0, $fullsize = false, $max_dims = false) {
	$id = (int) $id;

	if ( $innerHTML = get_attachment_icon($id, $fullsize, $max_dims))
		return $innerHTML;

	$post = & get_post($id);

	$innerHTML = $post->post_title;

	return apply_filters('attachment_innerHTML', $innerHTML, $post->ID);
}

function prepend_attachment($content) {
	$p = '<p class="attachment">';
	$p .= get_the_attachment_link(false, true, array(400, 300));
	$p .= '</p>';
	$p = apply_filters('prepend_attachment', $p);

	return "$p\n$content";
}

?>