<?
/*
This is my multi-tier menu system. The menu itself is printed into
a one-celled table. There are no collapse or expand functions, but
you have a high level of control for the rest of the looks. This has
great potential since I designed it in such a way to make it very
easy to use loops to set the data (especially if you store it in a
database like I do).
There is no limit to the number of tiers for this menu system, but
there are drawbacks also. For instance, if you specify your width
say as 150 pixels, and you use indent spacing, you'll have problems
with text wrapping or images cutting off. Text wrapping wouldn't be
so bad if it also justified itself after the line break.
One thing to note is the way the indents and spacing is done. I use
an image (1x1 pixel, transparent gif "images/spacer.gif") for all
the spacing, so you may want to either create that image, or find it
in the code below (lines 114, 160) to change it to your preference.
This is a great startting point for a more advanced menuing system.
What I have here serves my needs for now, so I don't think I'll be
doing a lot of work on it until it's needed. However, feel free to
make improvements and fix fea^H^H^H bugs. If you do, please send
me a copy!
Examples on use at the bottom of the file.
Last Modified by Justin Koivisto (justin@koivi.com) 3/21/01 6:42PM
*/
$MENU_CLASS_INC=TRUE;
class menu_item_class{
var $text; // text of this item
var $url; // link - unquoted for ability to add target info
var $font_size; // the size that the text will appear as (if any)
var $font_face; // the face that the text will appear as (if any)
var $font_color; // the color that the text will appear as (if any)
// NOTE: for the color, you can either use the names
// (like 'blue') or the hexadecimal value beginning
// with a pound sign (#)
var $image; // file to use as an image link (if any)
var $image_height; // the height in pixels of above
var $image_width; // the width in pixels of above
var $items; // array of children objects (indexed by child text)
var $num_items; // the number of sub-items for this one
// Constructor
function menu_item_class($text,$url=''){
$this->text=$text;
$this->url=$url;
$this->num_items=0;
}
// functions to set values
function setFontFace($value){$this->font_face=$value;}
function setFontSize($value){$this->font_size=$value;}
function setFontColor($value){$this->font_color=$value;}
function setImage($value){$this->image=$value;}
function setImageSize($width,$height){
$this->image_width=$width;
$this->image_height=$height;
}
// adding children to menu items
function addSub($name,$url=''){
$this->items[$name]=new menu_item_class($name,$url);
$this->num_items++;
}
}
class menu_class{
var $width; // the width of the table
var $spacer; // the height between items in pixels
var $indent; // the width in pixels of sub-item's indent
var $bgcolor; // the background color of the row (if any)
var $background; // the background image of the row (if any)
var $padding; // the cellpadding of the table
var $border; // the width of the border around the table
var $align; // the horizontal alignment of the cell
var $valign; // the vertical alignment of the cell
var $items; // the children of the menu (indexed by name)
// Constructor
function menu_class($name,$width){
$this->width=$width;
$this->padding=0;
$this->border=0;
$this->num_items=0;
}
// function to set table values
function setSpacer($value){$this->spacer=$value;}
function setIndent($value){$this->indent=$value;}
function setColor($value){$this->bgcolor=$value;}
function setBorder($value){$this->border=$value;}
function setBackImage($value){$this->background=$value;}
function setPadding($value){$this->padding=$value;}
function setAlignment($horiz,$vert){$this->align=$horiz;$this->valign=$vert;}
// how to add menu heading items
function addItem($text,$url=''){
$this->items[$text]=new menu_item_class($text,$url);
$this->num_items++;
}
// print an item menu
function printItem(&$tmp,$tier){
$output='';
// we need to check if we need an indent
if($tier>0){
$output.="<img src=images/spacer.gif width=";
$indent=$tier*$this->indent;
$output.="$indent height=1 align=left>";
}
$tier++;
// now we need to add the link stuff
if($tmp->url)
$output.="<a href=$tmp->url>";
// take care of the font stuff if set (otherwise we'll just
// print an empty font tag - no big deal
$output.="<font";
if($tmp->font_face)
$output.=" face=$tmp->font_face";
if($tmp->font_size)
$output.=" size=$tmp->font_size";
if($tmp->font_color)
$output.=" color=$tmp->font_color";
$output.=">";
// if we are using images, show it
if($tmp->image){
$output.="<img src=$tmp->image";
if($tmp->image_width)
$output.=" width=$tmp->image_width";
if($tmp->image_height)
$output.=" height=$tmp->image_height";
$output.=" border=0 alt=\"$tmp->text\">";
}else{
// if not images, we need the text output then
$output.=$tmp->text;
}
// close font tag
$output.="</font>";
// don't forget to close the anchor tag
if($tmp->url)
$output.="</a>";
// add line break after each item
$output.="<br>";
// give the spacer a chance
if($this->spacer)
$output.="\n <img src=images/spacer.gif width=1 height=$this->spacer><br>";
// How about this item's children?
if($tmp->num_items>0){
foreach($tmp->items as $submenu){
$output.=$this->printItem($submenu,$tier);
}
}
return $output;
}
// print menu. returns HTML code from function rather than
// printing directly to output
function printMenu(){
$output="\n\n<!-- BEGIN: $this->text -->\n";
$output.=" <table width=$this->width cellspacing=0 cellpadding"
."=$this->padding border=$this->border>\n <tr";
if($this->background)
$output.=" background=$this->background";
if($this->bgcolor)
$output.=" bgcolor=$this->bgcolor";
$output.=">\n <td";
if($this->align)
$output.=" align=$this->align";
if($this->valign)
$output.=" valign=$this->valign";
$output.=">";
// now we need to print the menu items
foreach($this->items as $item)
$output.=$this->printItem($item,0);
$output.="\n </td>\n </tr>\n </table>\n<!-- END: "
."$this->text -->\n\n";
return $output;
}
}
// -------------------------------- EXAMPLES ---------------------------------
// start by defining the menu's looks and name
$menu=new menu_class('Menu Title',175);
$menu->setPadding(4);
$menu->setIndent(15);
$menu->setBorder(2);
$menu->setSpacer(7);
$menu->setColor("#dfdfdf");
$menu->setAlignment('left','top');
// now we will add in the menu items
$menu->addItem('Heading 1','1.htm'); // tier 1
$menu->items['Heading 1']->setFontSize(1);
$menu->items['Heading 1']->setFontFace("arial");
$menu->items['Heading 1']->setFontColor("#000000");
$menu->items['Heading 1']->addSub('Sub-heading','images/');
$menu->items['Heading 1']->addSub('Sub-heading0','images/');
$menu->addItem('Heading 2','2.htm'); // tier 1
$menu->items['Heading 2']->setImage("images/test.gif");
$menu->items['Heading 2']->setImageSize(125,20);
$menu->addItem('Heading 3','3.htm'); // tier 1
$menu->items['Heading 3']->addSub('1','images/');
$menu->items['Heading 3']->items['1']->setFontSize(1);
$menu->items['Heading 3']->items['1']->addSub('2','url');
$menu->items['Heading 3']->items['1']->items['2']->setFontSize(1);
$menu->items['Heading 3']->items['1']->items['2']->addSub('3','url');
$menu->items['Heading 3']->items['1']->items['2']->items['3']->addSub('4','url');
$menu->items['Heading 3']->items['1']->items['2']->items['3']->items['4']->addSub('5','url');
$menu->items['Heading 3']->items['1']->items['2']->items['3']->items['4']->items['5']->addSub('6','url');
$menu->items['Heading 3']->items['1']->items['2']->items['3']->items['4']->items['5']->items['6']->addSub('7','url');
$menu->addItem('Heading 4','4.htm'); // tier 1
echo $menu->printMenu();
?>
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