File indexing completed on 2024-04-28 15:14:03

 /***************************************************************************
     File                 : ColorMapRenderer.cc
     Project              : LabPlot
     --------------------------------------------------------------------
     Copyright            : (C) 2008 by Alexander Semke
     Email (use @ for *)  : alexander.semke*web.de
     Description          : colormap renderer class
 
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *  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.                                    *
  *                                                                         *
  *  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., 51 Franklin Street, Fifth Floor,                    *
  *   Boston, MA  02110-1301  USA                                           *
  *                                                                         *
  ***************************************************************************/
 #include "ColorMapRenderer.h"
 
 #include <KDebug>
 #include <QFile>
 #include <QPainter>
 
 QPixmap ColorMapRenderer::pixmap(const QString& fileName) {
     QFile file(fileName);
     if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
         kDebug()<<"file "<<fileName<<" not found"<<endl;
         return QPixmap();
     }
 
     QColor rgb;
     QList<QColor> list_rgb;
     int  red, green, blue;
     QTextStream in(&file);
 
     while (!in.atEnd()) {
         in.readLine();
         in >> red >> green >> blue;
         rgb.setRgb( red, green, blue );
         list_rgb.append(rgb);
 //      kDebug()<<red<<"\t"<<green<<"\t"<<blue<<endl;
     }
 
     int height = list_rgb.size();
     int width = 80;
 //  kDebug()<<height<<"line read."<<endl;
     QPixmap pixmap(width, height);
     QPainter p( &pixmap );
     for (int i = 0; i != height; ++i) {
         rgb = list_rgb.at(i);
         p.setPen( rgb );
         p.drawLine( QPoint(0, height-i), QPoint(width, height-i) );
     }
 
     return pixmap;
 }