File indexing completed on 2025-01-05 04:25:41

0001 /****************************************************************************************
0002  * Copyright (c) 2017 Malte Veerman <malte.veerman@gmail.com>                       *
0003  *                                                                                      *
0004  * This program is free software; you can redistribute it and/or modify it under        *
0005  * the terms of the GNU General Public License as published by the Free Software        *
0006  * Foundation; either version 2 of the License, or (at your option) any later           *
0007  * version.                                                                             *
0008  *                                                                                      *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
0011  * PARTICULAR PURPOSE. See the GNU General Pulic License for more details.              *
0012  *                                                                                      *
0013  * You should have received a copy of the GNU General Public License along with         *
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
0015  ****************************************************************************************/
0016 
0017 #ifndef BLOCKWORKER_H
0018 #define BLOCKWORKER_H
0019 
0020 #include "AnalyzerWorker.h"
0021 
0022 #include <QElapsedTimer>
0023 #include <QMutex>
0024 #include <QTime>
0025 #include <QVector>
0026 
0027 
0028 class BlockWorker : public Analyzer::Worker
0029 {
0030     friend class BlockRenderer;
0031 
0032     Q_OBJECT
0033 
0034 public:
0035     BlockWorker( int rows, int columns, qreal step, bool showFadebars );
0036 
0037     void setStep( qreal step ) { m_step = step; }
0038     void setRows( int rows );
0039     void setColumns( int columns );
0040     void setRefreshRate( qreal refreshRate ) { m_refreshTime = std::floor( 1000.0 / refreshRate ); }
0041     void setShowFadebars( bool showFadebars ) { m_showFadebars = showFadebars; }
0042 
0043 Q_SIGNALS:
0044     void finished();
0045 
0046 protected:
0047     void analyze() override;
0048 
0049 private:
0050     struct Fadebar
0051     {
0052         int y;
0053         qreal intensity;
0054         Fadebar()
0055         {
0056             y = 0;
0057             intensity = 0.0;
0058         }
0059         Fadebar( int y, qreal intensity )
0060         {
0061             this->y = y;
0062             this->intensity = intensity;
0063         }
0064     };
0065     mutable QMutex m_mutex;  //used to lock m_store and m_fadebars
0066     QVector<double> m_store;  //current bar heights
0067     QVector<double> m_yscale;
0068     QVector<QList<Fadebar> > m_fadebars;
0069     qreal m_step;
0070     int m_rows;
0071     int m_columns;
0072     int m_refreshTime;
0073     bool m_showFadebars;
0074     QElapsedTimer m_lastUpdate;
0075 };
0076 
0077 #endif //BLOCKWORKER_H