<?php
# $Id$
# http://www.mapbender.org/index.php/mod_help
# Copyright (C) 2002 CCGIS 
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

require_once(dirname(__FILE__)."/../../conf/mapbender.conf");
$con = db_connect(DBSERVER,OWNER,PW);
db_select_db(DB,$con);
$gui_id = $_REQUEST["gui_id"];

$sql = "SELECT e_src, e_target FROM gui_element WHERE e_id = 'help' AND fkey_gui_id = $1";
$v = array($gui_id);
$t = array('s');
$res = db_prep_query($sql, $v, $t);
$cnt = 0;
while($row = db_fetch_array($res)){ 
   $e_src = $row["e_src"];
   $cnt++;
}
$e_id_css = 'help';
include(dirname(__FILE__)."/../include/dyn_js.php");
if($cnt > 1){ echo "alert('help: ID not unique!');";}
?>
try{if(mod_help_color){}}catch(e){mod_help_color = '#cc33cc';}
try{if(mod_help_thickness){}}catch(e){mod_help_color = 3;}
var mod_help_elName = "help";
var mod_help_str = "";
var mod_help_img_on = new Image(); mod_help_img_on.src =  "<?php  echo preg_replace("/_off/","_on",$e_src);  ?>";
var mod_help_img_off = new Image(); mod_help_img_off.src ="<?php  echo $e_src;  ?>";
var mod_help_img_over = new Image(); mod_help_img_over.src = "<?php  echo preg_replace("/_off/","_over",$e_src);  ?>";

function init_help(ind){
	mb_button[ind] = document.getElementById(mod_help_elName);
	mb_button[ind].img_over = mod_help_img_over.src;
	mb_button[ind].img_on = mod_help_img_on.src;
	mb_button[ind].img_off = mod_help_img_off.src;
	mb_button[ind].status = 0;
	mb_button[ind].elName = mod_help_elName;
	mb_button[ind].go = new Function ("mod_help_click()");
	mb_button[ind].stop = new Function ("mod_help_disable()");
}
function mod_help_click(){
	if(document.getElementById('mod_help_load')){
		document.getElementById('mod_help_img').innerHTML = mod_help_str;
		mod_help_draw();
	}
	else{
		var t = mod_help_set();
	}
}
function mod_help_disable(){
	document.getElementById('mod_help_img').innerHTML = '';
	document.getElementById('mod_help_img').style.width = '0px';
	document.getElementById('mod_help_img').style.height = '0px';
	document.getElementById('mod_help_draw').innerHTML = '';
	mb_disableThisButton(mod_help_elName);
}
function mod_help_set(){
	var iframe = document.createElement('iframe');
	iframe.setAttribute("src", "../php/mod_help.php?gui_id=<?php echo $gui_id ?>");
	var tmp = document.body.appendChild(iframe);
	tmp.id = 'mod_help_load';
	tmp.style.width = '1px';
	tmp.style.height='1px';
	tmp.style.visibility = 'hidden';

	var helpimg = document.createElement('div');
	var tmp = document.body.appendChild(helpimg);
	tmp.id = 'mod_help_img';
	tmp.style.position = 'absolute';
	tmp.style.zIndex = '1000';
	tmp.style.top = '0px';
	tmp.style.left = '0px';
	tmp.style.width = '1px';
	tmp.style.height='1px';
	
	var helpdraw = document.createElement('div');
	var tmp = document.body.appendChild(helpdraw);
	tmp.id = 'mod_help_draw';
	tmp.style.position = 'absolute';
	tmp.style.zIndex = '999';
	tmp.style.top = '0px';
	tmp.style.left = '0px';
	tmp.style.width = '0px';
	tmp.style.height='0px';
	
	return true;
}
function mod_help_set_str(str){
	mod_help_str = str;
	document.getElementById('mod_help_img').innerHTML = mod_help_str;
	mod_help_draw();
}
function mod_help_draw(){
	var canvas = new jsGraphics('mod_help_draw');
	canvas.setStroke(parseInt(mod_help_thickness));
	canvas.setColor(mod_help_color);
	var my = document.getElementsByName("mod_help_imagemap")[0];
	for(var i=0; i<my.areas.length; i++){
		var myc = my.areas[i].coords.split(",");
		canvas.drawRect(parseInt(myc[0]),parseInt(myc[1]),parseInt(myc[2]) - parseInt(myc[0]),parseInt(myc[3]) - parseInt(myc[1]));
		canvas.paint();		
	}	
}