Class TreeItem

Class TreeItem Class to create tree-based items

The treeitem class allows you to logically store tree-based structures.

Example:

Let's have a tree with 3 nodes. It's important that we always have a "root" key.

$root = new TreeItem("root", 1); $item1 = new TreeItem("node1",2); $item2 = new TreeItem("node2",3); $item3 = new TreeItem("node3",4);

$root->addItem($item1); $root->addItem($item2); $root->addItem($item3);

This represents the tree we described above.

If you know the ID of the item you want to add to, there's no need to have a specific item handy, but rather you can use the "addItemToID" function.

Package: Core\Backend
Copyright: four for business AG <www.4fb.de>
License: http://www.contenido.org/license/LIZENZ.txt
Author: Timo Hummel
Located at classes/class.treeitem.php

Methods summary
`public`	# `__construct( string $name = "", string $id = "", boolean $collapsed = false )` Constructor to create an instance of this class. Constructor to create an instance of this class. Creates a new, independant tree item. Parameters `$name` `string` $name [optional] The name of that item `$id` `string` $id [optional] The unique ID of that item `$collapsed` `boolean` $collapsed [optional] Is this item collapsed by default
`public string`	# `getCollapsedIcon( )` Get method for _collapsed_icon variable Get method for _collapsed_icon variable Returns `string`
`public string`	# `getCustom( string $key )` Get method for _costum variable Get method for _costum variable Parameters `$key` `string` $key Returns `string` mixed
`public string`	# `getExpandedIcon( )` Get method for _expanded_icon variable Get method for _expanded_icon variable Returns `string`
`public string`	# `getId( )` Get method for _id variable Get method for _id variable Returns `string`
`public string`	# `getName( )` Get method for _name variable Get method for _name variable Returns `string`
`public array`	# `getSubItems( )` Get method for _subitems array Get method for _subitems array Returns `array`
`public`	# `setCustom( string $key, string\|integer $content )` Set method for custom array Set method for custom array Parameters `$key` `string` $key `$content` `string\|integer` $content
`public`	# `setCollapsedIcon( string $iconPath )` Set method for _collapsed_icon variable Set method for _collapsed_icon variable Parameters `$iconPath` `string` $iconPath
`public`	# `setExpandedIcon( string $iconPath )` Set method for _expanded_icon variable Set method for _expanded_icon variable Parameters `$iconPath` `string` $iconPath
`public`	# `setLastnodeIcon( string $iconPath )` Set method for _lastnode_icon variable Set method for _lastnode_icon variable Parameters `$iconPath` `string` $iconPath
`public`	# `setName( string $name )` Set method for name variable Set method for name variable Parameters `$name` `string` $name
`public boolean`	# `isCollapsed( )` Get status of collapsed (_collapsed variable) Get status of collapsed (_collapsed variable) Returns `boolean`
`public`	# `addItem( object & $item )` Adds a new subitem to this item. Adds a new subitem to this item. Parameters `$item` `object` $item the item to add
`protected`	# `_addItemToID( object $item, string $id )` Adds a new subitem to a specific item with an ID. Traverses all subitems to find the correct item. Adds a new subitem to a specific item with an ID. Traverses all subitems to find the correct item. Parameters `$item` `object` $item the item to add `$id` `string` $id the ID to add the item to
`public object &`	# `getItemByID( string $id )` Retrieves a specific item by its ID. Note that this function traverses all subitems to find the correct item. Retrieves a specific item by its ID. Note that this function traverses all subitems to find the correct item. Parameters `$id` `string` $id the ID to find Returns `object` The item, or false if nothing was found
`public`	# `removeItem( string $id )` Removes an item with a specific ID. Removes an item with a specific ID. Parameters `$id` `string` $id the ID to find
`public boolean`	# `isCustomAttributeSet( string $item )` Checks if a specific custom attribute is set. Checks if a specific custom attribute is set. Parameters `$item` `string` $item the attribute name to find Returns `boolean`
`public boolean`	# `markExpanded( string $id )` Marks an item as expanded. Traverses all subitems to find the ID. Note that only the item with $id is expanded, but not its childs. Marks an item as expanded. Traverses all subitems to find the ID. Note that only the item with $id is expanded, but not its childs. Parameters `$id` `string` $id the ID to expand, or an array with all id's Returns `boolean`
`public`	# `expandAll( string $start = -2 )` Expands all items, starting from the $start item. Expands all items, starting from the $start item. Parameters `$start` `string` $start [optional] the ID to start expanding from
`public`	# `collapseAll( string $start = -2 )` Collapses all items, starting from the $start item. Collapses all items, starting from the $start item. Parameters `$start` `string` $start [optional] the ID to start collapsing from
`public`	# `markCollapsed( string $id )` Marks an item as collpased. Traverses all subitems to find the ID. Note that only the item with $id is collapsed, but not its childs. Marks an item as collpased. Traverses all subitems to find the ID. Note that only the item with $id is collapsed, but not its childs. Parameters `$id` `string` $id the ID to collapse
`public`	# `traverse( object & $objects, integer $level = 0 )` Traverses the tree starting from this item, and returning all objects as $objects. Traverses the tree starting from this item, and returning all objects as $objects. Parameters `$objects` `object` $objects all found objects `$level` `integer` $level [optional] Level to start on
`public`	# `getFlatTree( TreeItem $item, array & $flat_tree )` Starts iterating at root node and flattens the tree into an array Starts iterating at root node and flattens the tree into an array Parameters `$item` `TreeItem` $item `$flat_tree` `array` $flat_tree
`public boolean`	# `hasCollapsedNode( unknown_type $item_id )` Parameters `$item_id` `unknown_type` $item_id Returns `boolean`
`public`	# `getTreeParentNodes( unknown_type & $parentNodes, unknown_type $id )` Returns a list of the id of all parent nodes of the given node Returns a list of the id of all parent nodes of the given node Parameters `$parentNodes` `unknown_type` $parentNodes `$id` `unknown_type` $id
`protected`	# `_getParentNodes( unknown_type & $parentNodes, unknown_type $stop_id )` Returns a list of the id of all parent nodes of the given node Not using the nodes of hierarchical tree, but flat tree !! Returns a list of the id of all parent nodes of the given node Not using the nodes of hierarchical tree, but flat tree !! Parameters `$parentNodes` `unknown_type` $parentNodes `$stop_id` `unknown_type` $stop_id
`public`	# `getRealCollapsedList( array & $list )` getCollapsedList thinks if a node has no subnodes it is collapsed I don't think so getCollapsedList thinks if a node has no subnodes it is collapsed I don't think so Parameters `$list` `array` $list
`public`	# `getCollapsedList( array & $list )` Returns all items (as ID array) which are collapsed. Returns all items (as ID array) which are collapsed. Parameters `$list` `array` $list Contains the list with all collapsed items
`public`	# `getExpandedList( array & $list )` Returns all items (as ID array) which are expanded. Returns all items (as ID array) which are expanded. Parameters `$list` `array` $list Contains the list with all expanded items

Properties summary
`protected array`	`$_subitems`	# Sub Items for this tree item Sub Items for this tree item
`protected boolean`	`$_collapsed`	# Determinates if this tree item is collapsed Determinates if this tree item is collapsed
`protected string`	`$_id`	# ID for this item ID for this item
`protected string`	`$_name`	# Name for this item Name for this item
`protected string`	`$_collapsed_icon`	# Icon for the collapsed item Icon for the collapsed item
`protected string`	`$_expanded_icon`	# Icon for the expanded item Icon for the expanded item
`protected string`	`$_lastnode_icon`	# Icon for last node in a branch Icon for last node in a branch
`protected integer`	`$_level`	# Contains the level of this item Contains the level of this item
`protected array`	`$_custom`	# Contains custom entries Contains custom entries
`protected array`	`$_parent`	# Contains the parent of this item Contains the parent of this item

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Class TreeItem

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