mirror of
https://github.com/EGroupware/egroupware.git
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319 lines
12 KiB
PHP
319 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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global $phpgw_info, $phpgw;
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$script = $SCRIPT_NAME;
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$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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$cnt=0;
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if ($this->read_from_file) {
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$fd = fopen($treefile, "r");
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if ($fd==0) die("menutree.inc : Unable to open file ".$treefile);
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while ($buffer = fgets($fd, 4096)) {
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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) $maxlevel=$tree[$cnt][0];
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$cnt++;
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}
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fclose($fd);
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} else {
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$ta = explode("\n",$treefile);
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while (list($null,$buffer) = each($ta)) {
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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) $maxlevel=$tree[$cnt][0];
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$cnt++;
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}
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}
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for ($i=0; $i<count($tree); $i++) {
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$expand[$i]=0;
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$visible[$i]=0;
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$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!="") $explevels = explode("|",$expandlevels);
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$i=0;
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while($i<count($explevels)) {
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$expand[$explevels[$i]]=1;
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$i++;
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}
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/*********************************************/
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/* Find last nodes of subtrees */
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/*********************************************/
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$lastlevel=$maxlevel;
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for ($i=count($tree)-1; $i>=0; $i--) {
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if ( $tree[$i][0] < $lastlevel ) {
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for ($j=$tree[$i][0]+1; $j <= $maxlevel; $j++) {
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$levels[$j]=0;
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}
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}
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if ( $levels[$tree[$i][0]]==0 ) {
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$levels[$tree[$i][0]]=1;
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$tree[$i][4]=1;
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} else
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$tree[$i][4]=0;
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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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$visible[3]=0; // root is always visible
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$visible[4]=0; // root is always visible
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$visible[5]=0; // root is always visible
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$visible[6]=0; // root is always visible
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$visible[7]=1; // root is always visible
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$visible[8]=0; // root is always visible
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$visible[9]=0; // root is always visible
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$visible[10]=0; // root is always visible
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$visible[11]=1; // root is always visible
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$visible[12]=0; // root is always visible
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$visible[13]=0; // root is always visible
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$visible[14]=0; // root is always visible
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$visible[15]=0; // root is always visible
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$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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$visible[21]=0; // root is always visible
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$visible[22]=0; // root is always visible
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$visible[23]=1; // root is always visible
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$visible[24]=0; // root is always visible
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$visible[25]=0; // root is always visible
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$visible[26]=1; // root is always visible
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$visible[27]=0; // root is always visible
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$visible[28]=0; // root is always visible
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for ($i=0; $i<count($explevels); $i++) {
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$n=$explevels[$i];
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if ( ($visible[$n]==1) && ($expand[$n]==1) ) {
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$j=$n+1;
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while ( $tree[$j][0] > $tree[$n][0] ) {
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if ($tree[$j][0]==$tree[$n][0]+1) $visible[$j]=1;
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$j++;
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}
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}
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}
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for ($i=0; $i<count($explevels); $i++) {
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$n=$explevels[$i];
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if ( ($visible[$n]==1) && ($expand[$n]==1) ) {
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$j=$n+1;
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while ( $tree[$j][0] == $tree[$n][0] + 1 ) {
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$visible[$j]=1;
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$j++;
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}
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}
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}
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/*********************************************/
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/* Output nicely formatted tree */
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/*********************************************/
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for ($i=0; $i<$maxlevel; $i++) $levels[$i]=1;
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$maxlevel++;
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$cnt=0;
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while ($cnt<count($tree)) {
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if ($visible[$cnt]) {
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/****************************************/
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/* Create expand/collapse parameters */
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/****************************************/
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$i=1; $params="p=";
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while($i<count($expand)) {
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if ( ($expand[$i]==1) && ($cnt!=$i) || ($expand[$i]==0 && $cnt==$i)) {
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$params=$params.$i;
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$params=$params."|";
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}
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$i++;
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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($cnt==0) {
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$str = "<table cellspacing=0 cellpadding=0 border=0 cols=".($maxlevel+3)." width=".($maxlevel*16+100).">\n";
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$str .= '<a href="' . $phpgw->link("index.php",$params) . '" target="_parent">' . $this->root_level_value . '</a>';
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$str .= "\n<tr>";
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for ($i=0; $i<$maxlevel; $i++) $str .= "<td width=16></td>";
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$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[$cnt][0]-1) {
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if ($levels[$i]==1)
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$str .= '<td><img src="' . $img_line . '" alt="|"></td>';
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else
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$str .= '<td><img src="' . $img_spc . '" alt=" "></td>';
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$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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$str .= '<td><img src="' . $img_end . '" alt="\"></td>';
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$levels[$tree[$cnt][0]-1]=0;
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} else {
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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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if ($expand[$cnt]==0)
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$str .= "<td><a href=\"".$phpgw->link($script,$params)."\"><img src=\"".$img_expand."\" border=no alt=\"+\"></a></td>";
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else
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$str .= "<td><a href=\"".$phpgw->link($script,$params)."\"><img src=\"".$img_collapse."\" border=no alt=\"-\"></a></td>";
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} else {
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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[$cnt][2]=="")
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$str .= "<td colspan=".($maxlevel-$tree[$cnt][0]).">".$tree[$cnt][1]."<font face\=\"Arial, Helvetica, san-serif\" size=\"2\"></td>";
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else
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$str .= "<td colspan=".($maxlevel-$tree[$cnt][0])."><font face\=\"Arial, Helvetica, san-serif\" size=\"2\"><a href=\"".$phpgw->link($tree[$cnt][2],$params)."\" target=\"".$tree[$cnt][3]."\">".$tree[$cnt][1]."</a></td>";
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/****************************************/
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/* end row */
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/****************************************/
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$str .= "</tr>\n";
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}
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$cnt++;
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}
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$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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