annotate data/model/SparseValueModel.h @ 147:3a13b0d4934e

* Reorganising code base. This revision will not compile.
author Chris Cannam
date Mon, 31 Jul 2006 11:44:37 +0000
parents
children 4b2ea82fd0ed
rev   line source
Chris@147 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@147 2
Chris@147 3 /*
Chris@147 4 Sonic Visualiser
Chris@147 5 An audio file viewer and annotation editor.
Chris@147 6 Centre for Digital Music, Queen Mary, University of London.
Chris@147 7 This file copyright 2006 Chris Cannam.
Chris@147 8
Chris@147 9 This program is free software; you can redistribute it and/or
Chris@147 10 modify it under the terms of the GNU General Public License as
Chris@147 11 published by the Free Software Foundation; either version 2 of the
Chris@147 12 License, or (at your option) any later version. See the file
Chris@147 13 COPYING included with this distribution for more information.
Chris@147 14 */
Chris@147 15
Chris@147 16 #ifndef _SPARSE_VALUE_MODEL_H_
Chris@147 17 #define _SPARSE_VALUE_MODEL_H_
Chris@147 18
Chris@147 19 #include "SparseModel.h"
Chris@147 20 #include "UnitDatabase.h"
Chris@147 21
Chris@147 22 /**
Chris@147 23 * Model containing sparse data (points with some properties) of which
Chris@147 24 * one of the properties is an arbitrary float value. The other
Chris@147 25 * properties depend on the point type.
Chris@147 26 */
Chris@147 27
Chris@147 28 template <typename PointType>
Chris@147 29 class SparseValueModel : public SparseModel<PointType>
Chris@147 30 {
Chris@147 31 public:
Chris@147 32 SparseValueModel(size_t sampleRate, size_t resolution,
Chris@147 33 float valueMinimum, float valueMaximum,
Chris@147 34 bool notifyOnAdd = true) :
Chris@147 35 SparseModel<PointType>(sampleRate, resolution, notifyOnAdd),
Chris@147 36 m_valueMinimum(valueMinimum),
Chris@147 37 m_valueMaximum(valueMaximum)
Chris@147 38 { }
Chris@147 39
Chris@147 40 using SparseModel<PointType>::m_points;
Chris@147 41 using SparseModel<PointType>::modelChanged;
Chris@147 42
Chris@147 43 virtual float getValueMinimum() const { return m_valueMinimum; }
Chris@147 44 virtual float getValueMaximum() const { return m_valueMaximum; }
Chris@147 45
Chris@147 46 virtual QString getScaleUnits() const { return m_units; }
Chris@147 47 virtual void setScaleUnits(QString units) {
Chris@147 48 m_units = units;
Chris@147 49 UnitDatabase::getInstance()->registerUnit(units);
Chris@147 50 }
Chris@147 51
Chris@147 52 virtual void addPoint(const PointType &point)
Chris@147 53 {
Chris@147 54 bool allChange = false;
Chris@147 55 if (m_points.empty() || point.value < m_valueMinimum) {
Chris@147 56 m_valueMinimum = point.value; allChange = true;
Chris@147 57 }
Chris@147 58 if (m_points.empty() || point.value > m_valueMaximum) {
Chris@147 59 m_valueMaximum = point.value; allChange = true;
Chris@147 60 }
Chris@147 61
Chris@147 62 SparseModel<PointType>::addPoint(point);
Chris@147 63 if (allChange) emit modelChanged();
Chris@147 64 }
Chris@147 65
Chris@147 66 virtual void deletePoint(const PointType &point)
Chris@147 67 {
Chris@147 68 SparseModel<PointType>::deletePoint(point);
Chris@147 69
Chris@147 70 if (point.value == m_valueMinimum ||
Chris@147 71 point.value == m_valueMaximum) {
Chris@147 72
Chris@147 73 float formerMin = m_valueMinimum, formerMax = m_valueMaximum;
Chris@147 74
Chris@147 75 for (typename SparseModel<PointType>::PointList::const_iterator i
Chris@147 76 = m_points.begin();
Chris@147 77 i != m_points.end(); ++i) {
Chris@147 78
Chris@147 79 if (i == m_points.begin() || i->value < m_valueMinimum) {
Chris@147 80 m_valueMinimum = i->value;
Chris@147 81 }
Chris@147 82 if (i == m_points.begin() || i->value > m_valueMaximum) {
Chris@147 83 m_valueMaximum = i->value;
Chris@147 84 }
Chris@147 85 }
Chris@147 86
Chris@147 87 if (formerMin != m_valueMinimum || formerMax != m_valueMaximum) {
Chris@147 88 emit modelChanged();
Chris@147 89 }
Chris@147 90 }
Chris@147 91 }
Chris@147 92
Chris@147 93 virtual QString toXmlString(QString indent = "",
Chris@147 94 QString extraAttributes = "") const
Chris@147 95 {
Chris@147 96 return SparseModel<PointType>::toXmlString
Chris@147 97 (indent,
Chris@147 98 QString("%1 minimum=\"%2\" maximum=\"%3\" units=\"%4\"")
Chris@147 99 .arg(extraAttributes).arg(m_valueMinimum).arg(m_valueMaximum)
Chris@147 100 .arg(this->encodeEntities(m_units)));
Chris@147 101 }
Chris@147 102
Chris@147 103 protected:
Chris@147 104 float m_valueMinimum;
Chris@147 105 float m_valueMaximum;
Chris@147 106 QString m_units;
Chris@147 107 };
Chris@147 108
Chris@147 109
Chris@147 110 #endif
Chris@147 111