annotate data/model/Dense3DModelPeakCache.h @ 961:fae5689f7e27

Frame this condition more defensively (from coverity scan)
author Chris Cannam
date Wed, 03 Sep 2014 09:57:30 +0100
parents 59e7fe1b1003
children cc27f35aa75c
rev   line source
Chris@545 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@545 2
Chris@545 3 /*
Chris@545 4 Sonic Visualiser
Chris@545 5 An audio file viewer and annotation editor.
Chris@545 6 Centre for Digital Music, Queen Mary, University of London.
Chris@545 7 This file copyright 2009 QMUL.
Chris@545 8
Chris@545 9 This program is free software; you can redistribute it and/or
Chris@545 10 modify it under the terms of the GNU General Public License as
Chris@545 11 published by the Free Software Foundation; either version 2 of the
Chris@545 12 License, or (at your option) any later version. See the file
Chris@545 13 COPYING included with this distribution for more information.
Chris@545 14 */
Chris@545 15
Chris@545 16 #ifndef _DENSE_3D_MODEL_PEAK_CACHE_H_
Chris@545 17 #define _DENSE_3D_MODEL_PEAK_CACHE_H_
Chris@545 18
Chris@545 19 #include "DenseThreeDimensionalModel.h"
Chris@545 20 #include "EditableDenseThreeDimensionalModel.h"
Chris@545 21 #include "base/ResizeableBitset.h"
Chris@545 22
Chris@545 23 class Dense3DModelPeakCache : public DenseThreeDimensionalModel
Chris@545 24 {
Chris@546 25 Q_OBJECT
Chris@546 26
Chris@545 27 public:
Chris@545 28 Dense3DModelPeakCache(DenseThreeDimensionalModel *source,
Chris@929 29 int columnsPerPeak);
Chris@545 30 ~Dense3DModelPeakCache();
Chris@545 31
Chris@546 32 virtual bool isOK() const {
Chris@546 33 return m_source && m_source->isOK();
Chris@546 34 }
Chris@546 35
Chris@929 36 virtual int getSampleRate() const {
Chris@546 37 return m_source->getSampleRate();
Chris@546 38 }
Chris@546 39
Chris@929 40 virtual int getStartFrame() const {
Chris@546 41 return m_source->getStartFrame();
Chris@546 42 }
Chris@546 43
Chris@929 44 virtual int getEndFrame() const {
Chris@546 45 return m_source->getEndFrame();
Chris@546 46 }
Chris@546 47
Chris@546 48 virtual Model *clone() const {
Chris@546 49 return new Dense3DModelPeakCache(m_source, m_resolution);
Chris@546 50 }
Chris@546 51
Chris@929 52 virtual int getResolution() const {
Chris@545 53 return m_source->getResolution() * m_resolution;
Chris@545 54 }
Chris@545 55
Chris@929 56 virtual int getWidth() const {
Chris@545 57 return m_source->getWidth() / m_resolution + 1;
Chris@545 58 }
Chris@545 59
Chris@929 60 virtual int getHeight() const {
Chris@545 61 return m_source->getHeight();
Chris@545 62 }
Chris@545 63
Chris@545 64 virtual float getMinimumLevel() const {
Chris@545 65 return m_source->getMinimumLevel();
Chris@545 66 }
Chris@545 67
Chris@545 68 virtual float getMaximumLevel() const {
Chris@545 69 return m_source->getMaximumLevel();
Chris@545 70 }
Chris@545 71
Chris@929 72 virtual bool isColumnAvailable(int column) const;
Chris@545 73
Chris@929 74 virtual Column getColumn(int column) const;
Chris@545 75
Chris@929 76 virtual float getValueAt(int column, int n) const;
Chris@545 77
Chris@929 78 virtual QString getBinName(int n) const {
Chris@545 79 return m_source->getBinName(n);
Chris@545 80 }
Chris@545 81
Chris@545 82 virtual bool shouldUseLogValueScale() const {
Chris@545 83 return m_source->shouldUseLogValueScale();
Chris@545 84 }
Chris@545 85
Chris@545 86 QString getTypeName() const { return tr("Dense 3-D Peak Cache"); }
Chris@545 87
Chris@545 88 virtual int getCompletion() const {
Chris@545 89 return m_source->getCompletion();
Chris@545 90 }
Chris@545 91
Chris@545 92 protected slots:
Chris@545 93 void sourceModelChanged();
Chris@545 94 void sourceModelAboutToBeDeleted();
Chris@545 95
Chris@545 96 private:
Chris@545 97 DenseThreeDimensionalModel *m_source;
Chris@545 98 mutable EditableDenseThreeDimensionalModel *m_cache;
Chris@545 99 mutable ResizeableBitset m_coverage;
Chris@929 100 int m_resolution;
Chris@545 101
Chris@929 102 bool haveColumn(int column) const;
Chris@929 103 void fillColumn(int column) const;
Chris@545 104 };
Chris@545 105
Chris@545 106
Chris@545 107 #endif