forked from extern/egroupware
385 lines
12 KiB
PHP
385 lines
12 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - MenuTree *
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* This file based on PHP3 TreeMenu *
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* (c)1999 Bjorge Dijkstra <bjorge@gmx.net> *
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* ------------------------------------------------------------------------ *
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* This is not part of phpGroupWare, but is used by phpGroupWare. *
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* http://www.phpgroupware.org/ *
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* ------------------------------------------------------------------------ *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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\**************************************************************************/
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/* $Id$ */
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/*********************************************/
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/* Settings */
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/*********************************************/
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/* */
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/* $treefile variable needs to be set in */
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/* main file */
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/* */
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/*********************************************/
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class menutree {
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var $read_from_file; // You can send the tree info from a string or file
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var $root_level_value; // This is what the top level name or image will be
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function menutree()
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{
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$this->read_from_file = True;
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}
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function showtree($treefile, $expandlevels='', $num_menus = 50, $invisible_menus = Null)
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{
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global $phpgw_info, $phpgw, $SCRIPT_FILENAME;
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$img_expand = 'templates/default/images/tree_expand.gif';
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$img_collapse = 'templates/default/images/tree_collapse.gif';
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$img_line = 'templates/default/images/tree_vertline.gif';
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$img_split = 'templates/default/images/tree_split.gif';
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$img_end = 'templates/default/images/tree_end.gif';
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$img_leaf = 'templates/default/images/tree_leaf.gif';
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$img_spc = 'templates/default/images/tree_space.gif';
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/*********************************************/
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/* Read text file with tree structure */
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/*********************************************/
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/*********************************************/
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/* read file to $tree array */
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/* tree[x][0] -> tree level */
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/* tree[x][1] -> item text */
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/* tree[x][2] -> item link */
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/* tree[x][3] -> link target */
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/* tree[x][4] -> last item in subtree */
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/*********************************************/
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$maxlevel=0;
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$cnt=-1;
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if($this->read_from_file)
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{
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$fd = fopen($treefile, 'r');
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if($fd==0)
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{
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die("menutree.inc : Unable to open file ".$treefile);
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}
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while($buffer = fgets($fd, 4096))
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{
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$cnt++;
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$tree[$cnt][0]=strspn($buffer,'.');
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$tmp=rtrim(substr($buffer,$tree[$cnt][0]));
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$node=explode('|',$tmp);
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$tree[$cnt][1]=$node[0];
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$tree[$cnt][2]=$node[1];
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$tree[$cnt][3]=$node[2];
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$tree[$cnt][4]=0;
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if($tree[$cnt][0] > $maxlevel)
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{
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$maxlevel=$tree[$cnt][0];
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}
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}
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fclose($fd);
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}
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else
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{
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$ta = explode("\n",$treefile);
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while (list($null,$buffer) = each($ta))
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{
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$cnt++;
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$tree[$cnt][0]=strspn($buffer,".");
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$tmp=rtrim(substr($buffer,$tree[$cnt][0]));
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$node=explode('|',$tmp);
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$tree[$cnt][1]=$node[0];
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$tree[$cnt][2]=$node[1];
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$tree[$cnt][3]=$node[2];
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$tree[$cnt][4]=0;
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if($tree[$cnt][0] > $maxlevel)
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{
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$maxlevel=$tree[$cnt][0];
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}
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}
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}
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$c_tree = count($tree);
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for($i=0; $i<$c_tree; $i++)
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{
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if($i!=0)
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{
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$expand[$i]=0;
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}
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else
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{
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$expand[$i]=1;
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}
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if($tree[$i][0] <= 2)
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{
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$visible[$i]=1;
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}
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else
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{
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$visible[$i]=0;
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}
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$levels[$i]=0;
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}
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/*********************************************/
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/* Get Node numbers to expand */
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/*********************************************/
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if($expandlevels!='')
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{
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$explevels = explode('|',$expandlevels);
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$c_exp = count($explevels);
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for($i=0;$i<$c_exp;$i++)
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{
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$expand[$explevels[$i]]=1;
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}
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}
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else
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{
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$c_exp = 0;
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}
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/*********************************************/
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/* Find last nodes of subtrees */
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/*********************************************/
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$lastlevel=$maxlevel;
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for ($i=count($tree)-1; $i>=0; $i -= 1)
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{
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if($tree[$i][0] < $tree[$i+1][0])
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{
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for($j=$tree[$i][0]+1; $j <= $maxlevel; $j++)
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{
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$levels[$j]=0;
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}
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}
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if($levels[$tree[$i][0]]==0)
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{
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$levels[$tree[$i][0]]=1;
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$tree[$i][4]=1;
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}
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else
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{
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$tree[$i][4]=0;
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}
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// $lastlevel=$tree[$i][0];
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}
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/*********************************************/
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/* Determine visible nodes */
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/*********************************************/
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// $visible[0]=1; // root is always visible
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// $visible[1]=1; // root is always visible
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// $visible[2]=1; // root is always visible
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// $visible[3]=1; // root is always visible
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// $visible[4]=1; // root is always visible
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// $visible[5]=1; // root is always visible
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// $visible[6]=1; // root is always visible
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// $visible[7]=1; // root is always visible
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// $visible[8]=1; // root is always visible
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// $visible[9]=1; // root is always visible
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// $visible[10]=1; // root is always visible
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// $visible[11]=1; // root is always visible
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// $visible[12]=1; // root is always visible
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// $visible[13]=1; // root is always visible
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// $visible[14]=1; // root is always visible
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// $visible[15]=1; // root is always visible
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// $visible[16]=1; // root is always visible
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// $visible[17]=1; // root is always visible
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// $visible[18]=1; // root is always visible
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// $visible[19]=1; // root is always visible
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// $visible[20]=1; // root is always visible
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// $visible[21]=1; // root is always visible
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// $visible[22]=1; // root is always visible
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// $visible[23]=1; // root is always visible
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// $visible[24]=1; // root is always visible
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// $visible[25]=1; // root is always visible
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// $visible[26]=1; // root is always visible
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// $visible[27]=1; // root is always visible
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// $visible[28]=1; // root is always visible
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for ($i=0; $i<$c_exp; $i++)
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{
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$n=$explevels[$i];
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if(($visible[$n]==1) && ($expand[$n]==1))
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{
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for($j=$n+1;$tree[$j][0]>$tree[$n][0];$j++)
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{
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if($tree[$j][0]==$tree[$n][0]+1)
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{
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$visible[$j]=1;
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}
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}
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}
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}
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/*********************************************/
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/* Output nicely formatted tree */
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/*********************************************/
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// for($i=0; $i<$maxlevel; $i++)
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// {
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// $levels[$i]=1;
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// }
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$maxlevel++;
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$cnt=0;
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for($cnt=0;$cnt<$c_tree - 1;$cnt++)
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{
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if(!$visible[$cnt])
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{
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continue;
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}
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/****************************************/
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/* Create expand/collapse parameters */
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/****************************************/
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$params='p=';
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for($i=1;$i<=$c_tree;$i++)
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{
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if(($expand[$i]==1) && ($cnt!=$i) || ($expand[$i]==0 && $cnt==$i))
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{
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if($params != 'p=')
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{
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$params .= '|';
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}
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$params .= $i;
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}
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}
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if($params=='p=')
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{
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$params='';
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}
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/****************************************/
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/* Always display the extreme top level */
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/****************************************/
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if($cnt==0)
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{
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$str = '<table cellspacing="0" cellpadding="0" border="0" cols="'.($maxlevel+3).'" width="'.($maxlevel*16+100).'">'."\n";
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$str .= '<a href="' . $phpgw->link('/'.$phpgw_info['flags']['currentapp'].'/index.php',$params) . '" target="_parent">' . $this->root_level_value . '</a>';
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$str .= "\n".'<tr>';
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for ($k=0; $k<$maxlevel; $k++)
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{
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$str .= '<td width=16></td>';
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}
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$str .= '<td width=100></td></tr>'."\n";
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}
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/****************************************/
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/* start new row */
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/****************************************/
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$str .= '<tr>';
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/****************************************/
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/* vertical lines from higher levels */
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/****************************************/
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$i=0;
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while ($i<$tree[$cnt][0]-1)
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{
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if ($levels[$i]==1)
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{
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$str .= '<td><img src="' . $img_line . '" alt="|"></td>';
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}
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else
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{
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$str .= '<td><img src="' . $img_spc . '" alt=" "></td>';
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}
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$i++;
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}
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/****************************************/
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/* corner at end of subtree or t-split */
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/****************************************/
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if ($tree[$cnt][4]==1)
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{
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$str .= '<td><img src="' . $img_end . '" alt="\"></td>';
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$levels[$tree[$cnt][0]-1]=0;
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}
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else
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{
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$str .= '<td><img src="' . $img_split . '" alt="|-"></td>';
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$levels[$tree[$cnt][0]-1]=1;
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}
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/********************************************/
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/* Node (with subtree) or Leaf (no subtree) */
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/********************************************/
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if($tree[$cnt+1][0]>$tree[$cnt][0])
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{
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if($expand[$cnt]==0)
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{
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$str .= '<td><a href="'.$phpgw->link('/'.$phpgw_info['flags']['currentapp'].'/'.basename($SCRIPT_FILENAME),$params).'"><img src="'.$img_expand.'" border="no" alt="+"></a></td>';
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}
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else
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{
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$str .= '<td><a href="'.$phpgw->link('/'.$phpgw_info['flags']['currentapp'].'/'.basename($SCRIPT_FILENAME),$params).'"><img src="'.$img_collapse.'" border="no" alt="-"></a></td>';
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}
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}
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elseif(isset($tree[$cnt+1][0]))
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{
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/*************************/
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/* Tree Leaf */
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/*************************/
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$str .= '<td><img src="' . $img_leaf . '" alt="o"></td>';
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}
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/****************************************/
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/* output item text */
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/****************************************/
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if ($tree[$cnt][2]=='')
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{
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$str .= '<td colspan="'.($maxlevel-$tree[$cnt][0]).'">'.$tree[$cnt][1].'<font face="'.$phpgw_info['theme']['font'].'" size="2"></td>';
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}
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else
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{
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$str .= '<td colspan="'.($maxlevel-$tree[$cnt][0]).'"><font face="'.$phpgw_info['theme']['font'].'" size="2"><a href="'.$phpgw->link('/'.$phpgw_info['flags']['currentapp'].'/'.$tree[$cnt][2],$params).'" target="'.$tree[$cnt][3].'">'.$tree[$cnt][1].'</a></td>';
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}
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/****************************************/
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/* end row */
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/****************************************/
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$str .= '</tr>'."\n";
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}
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$str .= '</table>'."\n";
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return $str;
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/***************************************************/
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/* Tree file format */
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/* */
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/* */
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/* The first line is always of format : */
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/* .[rootname] */
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/* */
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/* each line contains one item, the line starts */
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/* with a series of dots(.). Each dot is one level */
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/* deeper. Only one level at a time once is allowed*/
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/* Next comes the come the item name, link and */
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/* link target, seperated by a |. */
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/* */
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/* example: */
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/* */
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/* .top */
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/* ..category 1 */
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/* ...item 1.1|item11.htm|main */
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/* ...item 2.2|item12.htm|main */
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/* ..category 2|cat2overview.htm|main */
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/* ...item 2.1|item21.htm|main */
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/* ...item 2.2|item22.htm|main */
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/* ...item 2.3|item23.htm|main */
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/* */
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/***************************************************/
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}
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}
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