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/***************************************************************************
* Copyright (C) 2005 by Jason Kivlighn *
* jkivlighn@gmail.com *
* *
* 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 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "rating.h"
#include <ntqpainter.h>
#include <ntqbitmap.h>
#include <kiconloader.h>
TQPixmap Rating::starsPixmap( double stars_d, bool include_empty )
{
int stars = tqRound(stars_d * 2); //multiply by two to make it easier to work with half-stars
TQPixmap star = UserIcon(TQString::fromLatin1("star_on"));
TQPixmap star_off;
if ( include_empty )
star_off = UserIcon(TQString::fromLatin1("star_off"));
int pixmapWidth;
if ( include_empty )
pixmapWidth = 18*5;
else
pixmapWidth = 18*(stars/2)+((stars%2==1)?9:0);
TQPixmap generatedPixmap(pixmapWidth,18);
if ( !generatedPixmap.isNull() ) { //there aren't zero stars
generatedPixmap.fill();
TQPainter painter( &generatedPixmap );
int pixmapWidth = 18*(stars/2)+((stars%2==1)?9:0);
if ( include_empty )
painter.drawTiledPixmap(0,0,18*5,18,star_off); //fill with empty stars
painter.drawTiledPixmap(0,0,pixmapWidth,18,star); //write over the empty stars to show the rating
}
generatedPixmap.setMask( generatedPixmap.createHeuristicMask() );
return generatedPixmap;
}
void Rating::append( const RatingCriteria &rc )
{
ratingCriteriaList.append( rc );
}
double Rating::average() const
{
double sum = 0;
int count = 0;
for ( RatingCriteriaList::const_iterator rc_it = ratingCriteriaList.begin(); rc_it != ratingCriteriaList.end(); ++rc_it ) {
count++;
sum += (*rc_it).stars;
}
if ( count > 0 )
return sum/count;
else
return -1;
}
double RatingList::average()
{
int rating_total = 0;
double rating_sum = 0;
for ( RatingList::const_iterator rating_it = begin(); rating_it != end(); ++rating_it ) {
for ( RatingCriteriaList::const_iterator rc_it = (*rating_it).ratingCriteriaList.begin(); rc_it != (*rating_it).ratingCriteriaList.end(); ++rc_it ) {
rating_total++;
rating_sum += (*rc_it).stars;
}
}
if ( rating_total > 0 )
return rating_sum/rating_total;
else
return -1;
}
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