Source for file GUIComponentUtility.class.php

<?php
/**
* @since 8/15/2006
* @package polyphony.guiwizardcomponents
*
* @copyright Copyright &copy; 2006, Middlebury College
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
*
* @version $Id: GUIComponentUtility.class.php,v 1.5 2007/09/19 14:04:46 adamfranco Exp $
*/
 
 
 
/**
* This class allows for the modification of an entire "level" of theme.
*
* @since 8/09/2006
* @package polyphony.guiwizardcomponents
*
* @copyright Copyright &copy; 2006, Middlebury College
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
*
* @version $Id: GUIComponentUtility.class.php,v 1.5 2007/09/19 14:04:46 adamfranco Exp $
*/
 
 
class GUIComponentUtility{
    
    
    
/**
     *
     * Make an array of colors complete with styles.  The colors are arranged by hue families.
     *
     * @param int slices The number of families.  6-15 is probably good.
     * @param int trisize Proportional with the square root of the size of each family 4 to 6 is probably good.
     * @return array an array with the values at 'options' and styles in 'styles'
     */
    
    
    
    function makeColorArrays($slices, $triSize){
        $options = array();
        $styles = array();
        $options[''] = "Default";
        $styles[''] = "";
 
 
        for($dark = 0; $dark <=$triSize; $dark++){
            $goalDark = 255.99 * $dark / $triSize;
            $arr = GUIComponentUtility::addColor($goalDark,$goalDark,$goalDark);
            
        
            
                                $val0 = $arr[0];
                    $val1 = $arr[1];
                    
                    
                    $options[$val0]=$val0;
                    $styles[$val0]=$val1;
        }
 
 
        for($rot = 0; $rot<$slices; $rot++){
            $angle_R = ($rot /$slices) * 2 * M_PI+M_PI*1/3;
            $angle_G = ($rot /$slices) * 2 * M_PI+M_PI*5/3;
            $angle_B = ($rot /$slices) * 2 * M_PI+M_PI*3/3;
 
            $baseR = 128+ 127.99*sin($angle_R);
            $baseG = 128+ 127.99*sin($angle_G);
            $baseB = 128+ 127.99*sin($angle_B);
 
            for($dark = $triSize; $dark > 0; $dark--){
                $baseDarknessR = $baseR * $dark / $triSize;
                $baseDarknessG = $baseG * $dark / $triSize;
                $baseDarknessB = $baseB * $dark / $triSize;
 
 
                $goalDark = 255.99 * $dark / $triSize;
 
                for($gray = 0; $gray < $dark; $gray++){
 
                    $actual_r = $baseDarknessR * ($dark -$gray) + $goalDark*$gray;
                    $actual_g = $baseDarknessG * ($dark -$gray) + $goalDark*$gray;
                    $actual_b = $baseDarknessB * ($dark -$gray) + $goalDark*$gray;
 
                    
                    $actual_r /= $dark;
                    $actual_g /= $dark;
                    $actual_b /= $dark;
                    
                    $arr = GUIComponentUtility::addColor($actual_r,$actual_g,$actual_b);
                    
                    $val0 = $arr[0];
                    $val1 = $arr[1];
                    
                    
                    $options[$val0] = $val0;
                    $styles[$val0] = $val1;
                    
                }
            }
        }
 
 
        //this hack takes care of the fact that I really want to return them both.
        $ret = array();
        $ret['options'] = $options;
        $ret['styles'] = $styles;
 
        return $ret;
    }
 
    function addColor($r, $g, $b){
        
        
        $hexR = strtoupper(dechex(intval($r)));
        if($r <16) $hexR = "0".$hexR;
        $hexG = strtoupper(dechex(intval($g)));
        if($g <16) $hexG = "0".$hexG;
        $hexB = strtoupper(dechex(intval($b)));
        if($b <16) $hexB = "0".$hexB;
        
        $val = '#'.$hexR.$hexG.$hexB;
        
 
        //num measures the "brightness" of the color.
        //I think green is "brighter" than red and red "brighter" than blue.
        $num = $r*2+$g*3+$b;
        //Our threshold is 750.
        if($num > 750){
            $col = "#000000";
        }else{
            $col = "#FFFFFF";
        }
        return array($val,"font-family: monospace; color: ".$col."; background-color:".$val.";");
    }
 
    function makeFontArray(){
        $options = array("serif","sans-serif","cursive","fantasy","monospace");
        foreach($options as $option){
            $ret[$option]=$option;
        }
        return $ret;
    }
 
    function makeFontSizeArray(){
        $options = array("8pt","10pt","12pt","14pt","16pt","18pt","20pt","22pt","24pt","26pt");
        foreach($options as $option){
            $ret[$option]=$option;
        }
        return $ret;
    }    
    
    function makeBorderSizeArrays(){
        $arr = array("0px","1px","2px","3px","4px","5px","6px","8px","10px","14px");
        foreach($arr as $option){
            $options[$option]=$option;
            $styles[$option]="border-width: ".$option."; margin 3; padding 3;";
        }
        $ret = array('options'=>$options,'styles'=>$styles);
        return $ret;
    }
    
    function makeMarginAndPaddingArray(){
        $arr = array("0px","1px","2px","3px","4px","5px","6px","8px","10px","12px","16px","20px","25px","30px","35px","40px","45px","50px","60px","70px","80px","100px","125px","150px","175px","200px","225px","250px","275px","300px","350px","400px","-0px","-1px","-2px","-3px","-4px","-5px","-6px","-8px","-10px","-12px","-16px","-20px","-25px","-30px","-35px","-40px","-45px","-50px","-60px","-70px","-80px","-100px","-125px","-150px","-175px","-200px","-225px","-250px","-275px","-300px","-350px","-400px","2%","5%","10%","15%","20%","25%","30%","35%","40%","50%","60%","75%","-2%","-5%","-10%","-15%","-20%","-25%","-30%","-35%","-40%","-50%","-60%","-75%","-100%","-125%","-150%","-200%","-250%","-300%","-400%");
        foreach($arr as $option){
            $options[$option]=$option;
        }
        return $options;
    }
    
    function makeBorderStyleArrays(){
        $arr = array("none", "dotted", "dashed", 
                         "solid", "groove", "ridge", 
                         "inset", "outset", "double");
        foreach($arr as $option){
            $options[$option]=$option;
            $styles[$option]="margin: 6px 3px; padding: 3px; border-style: ".$option.";";
        }
         $ret = array('options'=>$options,'styles'=>$styles);
         return $ret;
    }
    
    function makeSpacingArray(){
        $arr = array("normal","-5px", "-3px", "-2px","-1px", "0px","1px", "2px","3px","5px", "7px", "10px");            
        foreach($arr as $option){
            $options[$option]=$option;
        }
         return $options;
    }
    
    function makeLineSpacingArray(){
        $options = array("normal","50%","75%","90%","100%","125%","150%","175%","200%","250%");
        foreach($options as $option){
            $ret[$option]=$option;
        }
        return $ret;
    }
    
    function makeAlignArray(){
        $options = array("left","center","right","justified");
        foreach($options as $option){
            $ret[$option]=$option;
        }
        return $ret;
    }
    
    
    
}