Smarty

[giaur]

Hi,

i've changed the function.gradient plugin (originaly by Lucas Baltes) so it uses class/style and does not use font (it's deprecated, isn't it ?) but span indstead.
Using class attribute is imho better, because there is no sense to type same font-size and face for every letter. Now it should also validate http://validator.w3.org

I've also changed if/else for ?: and cut some unnecessary code so the plugin is smaller.

Hope you find the changes usefull.

The example should explain how to use it.

If something is wrong please let me know. I'm new to smarty plugins developement.

giaur
http://www.giaur.qs.pl

[php:1:1bb7b501b8]<?php
/*
* Smarty plugin
* -------------------------------------------------------------
* Type: function
* Name: gradient
* Version: 1.1
* Date: April 3, 2004
* Author: Lucas Baltes <lucas at thebobo dot com>
* class and style and 'if' for '?:' change
* by giaur <giaur at qs dot pl> http://www.giaur.qs.pl
* License: GPL (http://www.gnu.org/)
* Credits: <kristoffer at caveo dot se> for his posting in
* the php manual (dechex function, user notes)
* Purpose: apply a color gradient to a string of text.
* Install: drop into the plugin directory
* Required input:
* text = string of text to colorize
*
* Optional input:
* class = css class - set font-family, size etc.
* start = rgb colors to start with,
* separated by comma's (ie '255,255,0')
* end = rgb colors to end with,
* separated by comma's (ie '255,255,0')
*
* Examples: {gradient text="this is a gradient"}
* {gradient text="this is a gradient" }
* {gradient text="this is a gradient" class="my_class" start="255,255,0" end="0,0,255"}
* the whole file may look like this:
* {literal}
* <style type="text/css">
* span.fancy_text {
* font-size: 180%;
* font-family: Tahoma, Verdana, sans-serif;
* }
* </style>
* {/literal}
* {gradient text="gradient text gradient text" class="fancy_text" start='0,0,200' end='40, 40, 120'}
* -------------------------------------------------------------
*/

function smarty_function_gradient($params, &$smarty)
{
extract($params);

if (empty($text)) {
$smarty->trigger_error("gradient: missing 'text' parameter");
return;
} else {
$text = str_replace("\n", "", $text);
$levels = strlen($text);
}
$start = ($start != "") ? explode(",", $start) : array(0,0,255);
$end = ($end != "") ? explode(",", $end) : array(255,0,0);

for ($i=1;$i<=$levels;$i++)
{
for ($j=0;$j<3;$j++)
{
$buffer[$j] = $start[$j] - $end[$j];
$buffer[$j] = floor($buffer[$j] / $levels);
$rgb[$j] = $start[$j] - ($buffer[$j] * $i);

if ($rgb[$j] > 255) $rgb[$j] = 255;

$rgb[$j] = dechex($rgb[$j]);
$rgb[$j] = strtoupper($rgb[$j]);

if (strlen($rgb[$j]) < 2) $rgb[$j] = "0$rgb[$j]";
}

$style = "style=\"color: #" . $rgb[0].$rgb[1].$rgb[2]."\"";
$output .= "<span class=\"".$class."\" ".$style.">".$text[$i-1 ] . "</span>";
}
echo $output;
}

/* vim: set expandtab: */
?>[/php:1:1bb7b501b8]

[RoVeRT]

You can reduce amount of redundent text needed to send more if you wrap all the <spans> in another for the class name. I get about 25% average less text when modified.