lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam and QMUL.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #include "Preferences.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include "Exceptions.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include "TempDirectory.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include <QDir>
lbajardsilogic@0: #include <QFileInfo>
lbajardsilogic@0: #include <QMutex>
lbajardsilogic@0: #include <QSettings>
lbajardsilogic@0: 
lbajardsilogic@0: Preferences *
lbajardsilogic@0: Preferences::m_instance = 0;
lbajardsilogic@0: 
lbajardsilogic@0: Preferences *
lbajardsilogic@0: Preferences::getInstance()
lbajardsilogic@0: {
lbajardsilogic@0:     if (!m_instance) m_instance = new Preferences();
lbajardsilogic@0:     return m_instance;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: Preferences::Preferences() :
lbajardsilogic@0:     m_spectrogramSmoothing(SpectrogramZeroPadded),
lbajardsilogic@0:     m_tuningFrequency(440),
lbajardsilogic@0:     m_windowType(HanningWindow),
lbajardsilogic@0:     m_resampleQuality(1)
lbajardsilogic@0: {
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup("Preferences");
lbajardsilogic@0:     m_spectrogramSmoothing = SpectrogramSmoothing
lbajardsilogic@0:         (settings.value("spectrogram-smoothing", int(m_spectrogramSmoothing)).toInt());
lbajardsilogic@0:     m_tuningFrequency = settings.value("tuning-frequency", 440.f).toDouble();
lbajardsilogic@0:     m_windowType = WindowType
lbajardsilogic@0:         (settings.value("window-type", int(HanningWindow)).toInt());
lbajardsilogic@0:     m_resampleQuality = settings.value("resample-quality", 1).toInt();
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: Preferences::~Preferences()
lbajardsilogic@0: {
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: Preferences::PropertyList
lbajardsilogic@0: Preferences::getProperties() const
lbajardsilogic@0: {
lbajardsilogic@0:     PropertyList props;
lbajardsilogic@0:     props.push_back("Spectrogram Smoothing");
lbajardsilogic@0:     props.push_back("Tuning Frequency");
lbajardsilogic@0:     props.push_back("Window Type");
lbajardsilogic@0:     props.push_back("Resample Quality");
lbajardsilogic@0:     return props;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: QString
lbajardsilogic@0: Preferences::getPropertyLabel(const PropertyName &name) const
lbajardsilogic@0: {
lbajardsilogic@0:     if (name == "Spectrogram Smoothing") {
lbajardsilogic@0:         return tr("Spectrogram y-axis smoothing:");
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Tuning Frequency") {
lbajardsilogic@0:         return tr("Frequency of concert A");
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Window Type") {
lbajardsilogic@0:         return tr("Spectral analysis window shape");
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Resample Quality") {
lbajardsilogic@0:         return tr("Playback resampler type");
lbajardsilogic@0:     }
lbajardsilogic@0:     return name;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: Preferences::PropertyType
lbajardsilogic@0: Preferences::getPropertyType(const PropertyName &name) const
lbajardsilogic@0: {
lbajardsilogic@0:     if (name == "Spectrogram Smoothing") {
lbajardsilogic@0:         return ValueProperty;
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Tuning Frequency") {
lbajardsilogic@0:         return RangeProperty;
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Property Box Layout") {
lbajardsilogic@0:         return ValueProperty;
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Window Type") {
lbajardsilogic@0:         return ValueProperty;
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Resample Quality") {
lbajardsilogic@0:         return ValueProperty;
lbajardsilogic@0:     }
lbajardsilogic@0:     return InvalidProperty;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: int
lbajardsilogic@0: Preferences::getPropertyRangeAndValue(const PropertyName &name,
lbajardsilogic@0:                                       int *min, int *max, int *deflt) const
lbajardsilogic@0: {
lbajardsilogic@0:     if (name == "Spectrogram Smoothing") {
lbajardsilogic@0:         if (min) *min = 0;
lbajardsilogic@0:         if (max) *max = 2;
lbajardsilogic@0:         if (deflt) *deflt = int(SpectrogramZeroPadded);
lbajardsilogic@0:         return int(m_spectrogramSmoothing);
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@204:     //!!! freq mapping   
lbajardsilogic@0: 
lbajardsilogic@0:     if (name == "Window Type") {
lbajardsilogic@0:         if (min) *min = int(RectangularWindow);
lbajardsilogic@0:         if (max) *max = int(BlackmanHarrisWindow);
lbajardsilogic@0:         if (deflt) *deflt = int(HanningWindow);
lbajardsilogic@0:         return int(m_windowType);
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     if (name == "Resample Quality") {
lbajardsilogic@0:         if (min) *min = 0;
lbajardsilogic@0:         if (max) *max = 2;
lbajardsilogic@0:         if (deflt) *deflt = 1;
lbajardsilogic@0:         return m_resampleQuality;
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     return 0;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: QString
lbajardsilogic@0: Preferences::getPropertyValueLabel(const PropertyName &name,
lbajardsilogic@0:                                    int value) const
lbajardsilogic@0: {
lbajardsilogic@0:     if (name == "Window Type") {
lbajardsilogic@0:         switch (WindowType(value)) {
lbajardsilogic@0:         case RectangularWindow: return tr("Rectangular");
lbajardsilogic@0:         case BartlettWindow: return tr("Triangular");
lbajardsilogic@0:         case HammingWindow: return tr("Hamming");
lbajardsilogic@0:         case HanningWindow: return tr("Hanning");
lbajardsilogic@0:         case BlackmanWindow: return tr("Blackman");
lbajardsilogic@0:         case GaussianWindow: return tr("Gaussian");
lbajardsilogic@0:         case ParzenWindow: return tr("Parzen");
lbajardsilogic@0:         case NuttallWindow: return tr("Nuttall");
lbajardsilogic@0:         case BlackmanHarrisWindow: return tr("Blackman-Harris");
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Resample Quality") {
lbajardsilogic@0:         switch (value) {
lbajardsilogic@0:         case 0: return tr("Fastest");
lbajardsilogic@0:         case 1: return tr("Standard");
lbajardsilogic@0:         case 2: return tr("Highest quality");
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0:     if (name == "Spectrogram Smoothing") {
lbajardsilogic@0:         switch (value) {
lbajardsilogic@0:         case NoSpectrogramSmoothing: return tr("None - blocky but accurate");
lbajardsilogic@0:         case SpectrogramInterpolated: return tr("Interpolate - fast but fuzzy");
lbajardsilogic@0:         case SpectrogramZeroPadded: return tr("Zero pad FFT - slow but clear");
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0:             
lbajardsilogic@0:     return "";
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: QString
lbajardsilogic@0: Preferences::getPropertyContainerName() const
lbajardsilogic@0: {
lbajardsilogic@0:     return tr("Preferences");
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: QString
lbajardsilogic@0: Preferences::getPropertyContainerIconName() const
lbajardsilogic@0: {
lbajardsilogic@0:     return "preferences";
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: Preferences::setProperty(const PropertyName &name, int value) 
lbajardsilogic@0: {
lbajardsilogic@0:     if (name == "Spectrogram Smoothing") {
lbajardsilogic@0:         setSpectrogramSmoothing(SpectrogramSmoothing(value));
lbajardsilogic@0:     } else if (name == "Tuning Frequency") {
lbajardsilogic@0:         //!!!
lbajardsilogic@0:     } else if (name == "Window Type") {
lbajardsilogic@0:         setWindowType(WindowType(value));
lbajardsilogic@0:     } else if (name == "Resample Quality") {
lbajardsilogic@0:         setResampleQuality(value);
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: Preferences::setSpectrogramSmoothing(SpectrogramSmoothing smoothing)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_spectrogramSmoothing != smoothing) {
lbajardsilogic@0: 
lbajardsilogic@0:         // "smoothing" is one of those words that looks increasingly
lbajardsilogic@0:         // ridiculous the more you see it.  Smoothing smoothing smoothing.
lbajardsilogic@0:         m_spectrogramSmoothing = smoothing;
lbajardsilogic@0: 
lbajardsilogic@0:         QSettings settings;
lbajardsilogic@0:         settings.beginGroup("Preferences");
lbajardsilogic@0:         settings.setValue("spectrogram-smoothing", int(smoothing));
lbajardsilogic@0:         settings.endGroup();
lbajardsilogic@0:         emit propertyChanged("Spectrogram Smoothing");
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: Preferences::setTuningFrequency(float freq)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_tuningFrequency != freq) {
lbajardsilogic@0:         m_tuningFrequency = freq;
lbajardsilogic@0:         QSettings settings;
lbajardsilogic@0:         settings.beginGroup("Preferences");
lbajardsilogic@0:         settings.setValue("tuning-frequency", freq);
lbajardsilogic@0:         settings.endGroup();
lbajardsilogic@0:         emit propertyChanged("Tuning Frequency");
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: Preferences::setWindowType(WindowType type)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_windowType != type) {
lbajardsilogic@0:         m_windowType = type;
lbajardsilogic@0:         QSettings settings;
lbajardsilogic@0:         settings.beginGroup("Preferences");
lbajardsilogic@0:         settings.setValue("window-type", int(type));
lbajardsilogic@0:         settings.endGroup();
lbajardsilogic@0:         emit propertyChanged("Window Type");
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: Preferences::setResampleQuality(int q)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_resampleQuality != q) {
lbajardsilogic@0:         m_resampleQuality = q;
lbajardsilogic@0:         QSettings settings;
lbajardsilogic@0:         settings.beginGroup("Preferences");
lbajardsilogic@0:         settings.setValue("resample-quality", q);
lbajardsilogic@0:         settings.endGroup();
lbajardsilogic@0:         emit propertyChanged("Resample Quality");
lbajardsilogic@0:     }
lbajardsilogic@0: }