view widgets/ItemEditDialog.cpp @ 1127:9fb8dfd7ce4c spectrogram-minor-refactor

Fix threshold in spectrogram -- it wasn't working in the last release.
There is a new protocol for this. Formerly the threshold parameter had a
range from -50dB to 0 with the default at -50, and -50 treated internally
as "no threshold". However, there was a hardcoded, hidden internal threshold
for spectrogram colour mapping at -80dB with anything below this being rounded
to zero. Now the threshold parameter has range -81 to -1 with the default
at -80, -81 is treated internally as "no threshold", and there is no hidden
internal threshold. So the default behaviour is the same as before, an
effective -80dB threshold, but it is now possible to change this in both
directions. Sessions reloaded from prior versions may look slightly different
because, if the session says there should be no threshold, there will now
actually be no threshold instead of having the hidden internal one.

Still need to do something in the UI to make it apparent that the -81dB
setting removes the threshold entirely. This is at least no worse than the
previous, also obscured, magic -50dB setting.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#include "ItemEditDialog.h"

#include <QLineEdit>
#include <QDoubleSpinBox>
#include <QSpinBox>
#include <QGridLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QPushButton>
#include <QGroupBox>
#include <QDialogButtonBox>

#include <float.h> // for FLT_MIN/MAX


ItemEditDialog::ItemEditDialog(sv_samplerate_t sampleRate, int options,
                               QString valueUnits, QWidget *parent) :
    QDialog(parent),
    m_sampleRate(sampleRate),
    m_defaultFrame(0),
    m_defaultDuration(0),
    m_defaultValue(0),
    m_frameTimeSpinBox(0),
    m_realTimeSecsSpinBox(0),
    m_realTimeUSecsSpinBox(0),
    m_frameDurationSpinBox(0),
    m_realDurationSecsSpinBox(0),
    m_realDurationUSecsSpinBox(0),
    m_valueSpinBox(0),
    m_textField(0)
{
    QGridLayout *grid = new QGridLayout;
    setLayout(grid);

    QGroupBox *timeBox = 0;
    QGroupBox *valueBox = 0;
    QGridLayout *subgrid = 0;

    int row = 0, subrow = 0;

    int singleStep = RealTime::frame2RealTime(2, sampleRate).usec() - 1;

    if ((options & ShowTime) || (options & ShowDuration)) {

        timeBox = new QGroupBox;
        timeBox->setTitle(tr("Timing"));
        grid->addWidget(timeBox, row, 0);

        subgrid = new QGridLayout;
        timeBox->setLayout(subgrid);

        ++row;
    }

    if (options & ShowTime) {

        subgrid->addWidget(new QLabel(tr("Time:")), subrow, 0);

        m_frameTimeSpinBox = new QSpinBox;
        m_frameTimeSpinBox->setMaximum(INT_MAX);
        m_frameTimeSpinBox->setSuffix(tr(" frames"));
        subgrid->addWidget(m_frameTimeSpinBox, subrow, 1, 1, 2);
        connect(m_frameTimeSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(frameTimeChanged(int)));

        ++subrow;

        m_realTimeSecsSpinBox = new QSpinBox;
        m_realTimeSecsSpinBox->setMaximum(999999);
        m_realTimeSecsSpinBox->setSuffix(tr(" sec"));
        subgrid->addWidget(m_realTimeSecsSpinBox, subrow, 1);
        connect(m_realTimeSecsSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(realTimeSecsChanged(int)));

        m_realTimeUSecsSpinBox = new QSpinBox;
        m_realTimeUSecsSpinBox->setMaximum(999999);
        m_realTimeUSecsSpinBox->setSuffix(tr(" usec"));
        m_realTimeUSecsSpinBox->setSingleStep(singleStep);
        subgrid->addWidget(m_realTimeUSecsSpinBox, subrow, 2);
        connect(m_realTimeUSecsSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(realTimeUSecsChanged(int)));

        ++subrow;
    }

    if (options & ShowDuration) {

        subgrid->addWidget(new QLabel(tr("Duration:")), subrow, 0);

        m_frameDurationSpinBox = new QSpinBox;
        m_frameDurationSpinBox->setMaximum(INT_MAX);
        m_frameDurationSpinBox->setSuffix(tr(" frames"));
        subgrid->addWidget(m_frameDurationSpinBox, subrow, 1, 1, 2);
        connect(m_frameDurationSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(frameDurationChanged(int)));

        ++subrow;

        m_realDurationSecsSpinBox = new QSpinBox;
        m_realDurationSecsSpinBox->setMaximum(999999);
        m_realDurationSecsSpinBox->setSuffix(tr(" sec"));
        subgrid->addWidget(m_realDurationSecsSpinBox, subrow, 1);
        connect(m_realDurationSecsSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(realDurationSecsChanged(int)));

        m_realDurationUSecsSpinBox = new QSpinBox;
        m_realDurationUSecsSpinBox->setMaximum(999999);
        m_realDurationUSecsSpinBox->setSuffix(tr(" usec"));
        m_realDurationUSecsSpinBox->setSingleStep(singleStep);
        subgrid->addWidget(m_realDurationUSecsSpinBox, subrow, 2);
        connect(m_realDurationUSecsSpinBox, SIGNAL(valueChanged(int)),
                this, SLOT(realDurationUSecsChanged(int)));

        ++subrow;
    }

    if ((options & ShowValue) || (options & ShowText)) {

        valueBox = new QGroupBox;
        valueBox->setTitle(tr("Properties"));
        grid->addWidget(valueBox, row, 0);

        subgrid = new QGridLayout;
        valueBox->setLayout(subgrid);

        ++row;
    }

    subrow = 0;

    if (options & ShowValue) {
        
        subgrid->addWidget(new QLabel(tr("Value:")), subrow, 0);

        m_valueSpinBox = new QDoubleSpinBox;
        m_valueSpinBox->setSuffix(QString(" %1").arg(valueUnits));
        m_valueSpinBox->setDecimals(10);
        m_valueSpinBox->setMinimum(-1e10);
        m_valueSpinBox->setMaximum(1e10);
        connect(m_valueSpinBox, SIGNAL(valueChanged(double)),
                this, SLOT(valueChanged(double)));
        subgrid->addWidget(m_valueSpinBox, subrow, 1);

        ++subrow;
    }

    if (options & ShowText) {
        
        subgrid->addWidget(new QLabel(tr("Text:")), subrow, 0);

        m_textField = new QLineEdit;
        connect(m_textField, SIGNAL(textChanged(QString)),
                this, SLOT(textChanged(QString)));
        subgrid->addWidget(m_textField, subrow, 1);

        ++subrow;
    }

    if (options & ShowText) {
        m_textField->setFocus(Qt::OtherFocusReason);
    } else if (options & ShowValue) {
        m_valueSpinBox->setFocus(Qt::OtherFocusReason);
    }
    
    QDialogButtonBox *bb = new QDialogButtonBox(Qt::Horizontal);
    grid->addWidget(bb, row, 0, 1, 2);
    
    QPushButton *ok = new QPushButton(tr("OK"));
    m_resetButton = new QPushButton(tr("Reset"));
    QPushButton *cancel = new QPushButton(tr("Cancel"));
    bb->addButton(ok, QDialogButtonBox::AcceptRole);
    bb->addButton(m_resetButton, QDialogButtonBox::ResetRole);
    bb->addButton(cancel, QDialogButtonBox::RejectRole);
    connect(ok, SIGNAL(clicked()), this, SLOT(accept()));
    connect(m_resetButton, SIGNAL(clicked()), this, SLOT(reset()));
    connect(cancel, SIGNAL(clicked()), this, SLOT(reject()));
    m_resetButton->setEnabled(false);
}

void
ItemEditDialog::setFrameTime(sv_frame_t frame)
{
    if (!m_frameTimeSpinBox) return;

    RealTime rt(RealTime::frame2RealTime(frame, m_sampleRate));
    m_realTimeSecsSpinBox->setValue(rt.sec);
    m_realTimeUSecsSpinBox->setValue(rt.usec());
    m_frameTimeSpinBox->setValue(int(frame));
    m_defaultFrame = frame;
    m_resetButton->setEnabled(false);
}

sv_frame_t
ItemEditDialog::getFrameTime() const
{
    return m_frameTimeSpinBox->value();
}

void
ItemEditDialog::setRealTime(RealTime rt)
{
    setFrameTime(RealTime::realTime2Frame(rt, m_sampleRate));
}

RealTime
ItemEditDialog::getRealTime() const
{
    return RealTime::frame2RealTime(getFrameTime(), m_sampleRate);
}

void
ItemEditDialog::setFrameDuration(sv_frame_t duration)
{
    if (!m_frameDurationSpinBox) return;

    RealTime rt(RealTime::frame2RealTime(duration, m_sampleRate));
    m_realDurationSecsSpinBox->setValue(rt.sec);
    m_realDurationUSecsSpinBox->setValue(rt.usec());
    m_frameDurationSpinBox->setValue(int(duration));
    m_defaultDuration = duration;
    m_resetButton->setEnabled(false);
}

sv_frame_t
ItemEditDialog::getFrameDuration() const
{
    return m_frameDurationSpinBox->value();
}

void
ItemEditDialog::setRealDuration(RealTime rt)
{
    setFrameDuration(RealTime::realTime2Frame(rt, m_sampleRate));
}

RealTime
ItemEditDialog::getRealDuration() const
{
    return RealTime::frame2RealTime(getFrameDuration(), m_sampleRate);
}

void
ItemEditDialog::setValue(float v)
{
    if (!m_valueSpinBox) return;

    m_valueSpinBox->setValue(v);
    m_defaultValue = v;
    m_resetButton->setEnabled(false);
}

float
ItemEditDialog::getValue() const
{
    return float(m_valueSpinBox->value());
}

void
ItemEditDialog::setText(QString text)
{
    if (!m_textField) return;

    m_textField->setText(text);
    m_defaultText = text;
    m_resetButton->setEnabled(false);
}

QString
ItemEditDialog::getText() const
{
    return m_textField->text();
}

void
ItemEditDialog::frameTimeChanged(int i)
{
    m_realTimeSecsSpinBox->blockSignals(true);
    m_realTimeUSecsSpinBox->blockSignals(true);

    RealTime rt(RealTime::frame2RealTime(i, m_sampleRate));
    m_realTimeSecsSpinBox->setValue(rt.sec);
    m_realTimeUSecsSpinBox->setValue(rt.usec());

    m_realTimeSecsSpinBox->blockSignals(false);
    m_realTimeUSecsSpinBox->blockSignals(false);
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::realTimeSecsChanged(int i)
{
    RealTime rt = getRealTime();
    rt.sec = i;
    sv_frame_t frame = RealTime::realTime2Frame(rt, m_sampleRate);
    m_frameTimeSpinBox->setValue(int(frame));
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::realTimeUSecsChanged(int i)
{
    RealTime rt = getRealTime();
    rt.nsec = i * 1000;
    sv_frame_t frame = RealTime::realTime2Frame(rt, m_sampleRate);
    m_frameTimeSpinBox->setValue(int(frame));
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::frameDurationChanged(int i)
{
    m_realDurationSecsSpinBox->blockSignals(true);
    m_realDurationUSecsSpinBox->blockSignals(true);

    RealTime rt(RealTime::frame2RealTime(i, m_sampleRate));
    m_realDurationSecsSpinBox->setValue(rt.sec);
    m_realDurationUSecsSpinBox->setValue(rt.usec());

    m_realDurationSecsSpinBox->blockSignals(false);
    m_realDurationUSecsSpinBox->blockSignals(false);
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::realDurationSecsChanged(int i)
{
    RealTime rt = getRealDuration();
    rt.sec = i;
    sv_frame_t frame = RealTime::realTime2Frame(rt, m_sampleRate);
    m_frameDurationSpinBox->setValue(int(frame));
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::realDurationUSecsChanged(int i)
{
    RealTime rt = getRealDuration();
    rt.nsec = i * 1000;
    sv_frame_t frame = RealTime::realTime2Frame(rt, m_sampleRate);
    m_frameDurationSpinBox->setValue(int(frame));
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::valueChanged(double)
{
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::textChanged(QString)
{
    m_resetButton->setEnabled(true);
}

void
ItemEditDialog::reset()
{
    setFrameTime(m_defaultFrame);
    setFrameDuration(m_defaultDuration);
    setValue(m_defaultValue);
    setText(m_defaultText);
    m_resetButton->setEnabled(false);
}