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<?php
/*
* $Horde: horde/lib/CategoryTree.php,v 1.4.2.7 2003/01/03 12:48:37 jan Exp $
*
* Copyright 2002-2003 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*/
/**
* Class for drawing a hierarchical tree structure from a category
* export (CATEGORY_FORMAT_3D). Icons, styles, etc. can all be
* defined.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @version $Revision: 1.4.2.7 $
* @since Horde 2.1
* @package horde.category
*/
class CategoryTree {
/** The category object to draw the tree for.
@object Category $category */
var $category;
/** The template path to use.
@string $templates */
var $templates;
/** The default image for any elements of the tree which don't
have an image defined.
@var string $image */
var $image = 'group.gif';
/** An array of images, indexed by element name, to be displayed
for specific tree elements.
@var array $images */
var $images = array();
/** The default CSS style name for any table rows which don't have
a CSS style defined.
@var string $style */
var $style = 'text';
/** An array of CSS styles, indexed by element name, to be
displayed for specific tree elements.
@var array $styles */
var $styles = array();
/** The default CSS link style name for any table rows which don't have
a CSS style defined.
@var string $linkstyle */
var $linkstyle = 'text';
/** An array of CSS link styles, indexed by element name, to be
displayed for specific tree elements. @var array $linkstyles
*/
var $linkstyles = array();
/** The default action for any element which doesn't have specific
actions defined. This is a hash with two elements, 'text' for
the link text, and 'url' for the link URL.
@var array $action */
var $action = null;
/** An array of actions, indexed by element name, to be displayed
for specific tree elements. These follow the same format as
the default action.
@see $action
@var array $actions */
var $actions = array();
function CategoryTree(&$category, $templates)
{
if (isset($category)) {
$this->category = $category;
}
$this->templates = $templates;
}
function setCategory(&$category)
{
$this->category = &$category;
}
function setImage($image, $element = null)
{
if (isset($element)) {
$this->images[$element] = $image;
} else {
$this->image = $image;
}
}
function setStyle($style, $element = null)
{
if (isset($element)) {
$this->styles[$element] = $style;
} else {
$this->style = $style;
}
}
function setLinkStyle($linkstyle, $element = null)
{
if (isset($element)) {
$this->linkstyles[$element] = $linkstyle;
} else {
$this->linkstyle = $linkstyle;
}
}
function setAction($action, $element = null)
{
if (isset($element)) {
$this->actions[$element] = $action;
} else {
$this->action = $action;
}
}
function draw($root = '-1', $maxi = null, $maxj = null)
{
$data = $this->category->export(CATEGORY_FORMAT_3D, $root);
if (count($data) == 0) {
$data = array(0 => array(0 => array('p' => '0.0',
'name' => 'root')),
'x' => 0,
'y' => 0);
}
if (!isset($maxi)) {
$maxi = $data['x'];
}
if (!isset($maxj)) {
$maxj = $data['y'];
}
$imageGrid[0][0] = 'line';
for ($n = $maxj; $n >= 0; $n--) {
for ($m = $maxi; $m >= 0; $m--) {
if (!empty($data[$m][$n])) {
// Something here
$imageGrid[$m][$n] = null;
} else {
// Empty by default
$imageGrid[$m][$n] = 'blank';
// Picture on the right?
if ($m < $maxi) {
if (!empty($data[$m + 1][$n])) { // Picture on the right
$imageGrid[$m][$n] = 'joinbottom';
if ($n < $maxj) {
if (!empty($imageGrid[$m][$n + 1]) && $imageGrid[$m][$n + 1] !== 'blank') { // Picture on the right and line below
$imageGrid[$m][$n] = 'join';
}
}
} else { // Nothing on the right
if ($n < $maxj) {
if (!empty($imageGrid[$m][$n + 1]) && $imageGrid[$m][$n + 1] !== 'blank') { // Nothing on the right and line below
$imageGrid[$m][$n] = 'line';
}
}
}
}
}
}
}
include $this->templates . '/tablehead.inc';
for ($n = 0; $n <= $maxj; $n++) {
$curRow = -1;
include $this->templates . '/rowstart.inc';
for ($m = 0; $m <= $maxi; $m++) {
$style = !@empty($this->styles[$data[$m][$n]['name']]) ? $this->styles[$data[$m][$n]['name']] : $this->style;
if (!isset($imageGrid[$m][$n])) {
echo '<td class="' . $style . '">';
if (!empty($this->images[$data[$m][$n]['name']])) {
Horde::pimg($this->images[$data[$m][$n]['name']]);
} else {
Horde::pimg($this->image);
}
echo '</td><td valign="center" class="' . $style . '"> ';
echo $data[$m][$n]['name'];
$curRow = $m;
$m = $maxi + 1;
} else {
echo '<td>' . Horde::img('tree/' . $imageGrid[$m][$n] . '.gif', 'hspace="0" vspace="0" width="20" height="20"');
}
echo '</td>';
}
$actions = isset($this->actions[$data[$curRow][$n]['name']]) ? $this->actions[$data[$curRow][$n]['name']] : $this->action;
if (!empty($actions) && is_array($actions) && count($actions) > 0) {
$linktext = '';
$linkstyle = !empty($this->linkstyles[$data[$curRow][$n]['name']]) ? $this->linkstyles[$data[$curRow][$n]['name']] : $this->linkstyle;
foreach ($actions as $action) {
if (!empty($linktext)) {
$linktext .= ' | ';
}
$link = Horde::url(Horde::addParameter($action['url'], 'category=' . urlencode($data[$curRow][$n]['name'])));
$linktext .= Horde::link($link, $action['text'], $linkstyle) . $action['text'] . '</a>';
}
} else {
$linktext = '';
}
include $this->templates . '/rowend.inc';
}
include $this->templates . '/tablefoot.inc';
}
}
?>
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