view widgets/PluginParameterBox.cpp @ 224:9465b5375235

* Fix #1672407 confused by plugin-named files in cwd (or home?)
* Fix #1491848 crash when loading new file while transform plugin runs
* Fix #1502287 Background remains black after spectrogram layer deleted
* Fix #1604477 Replacing the main audio file silences secondary audio file
* Fix failure to initialise property box layout to last preference on startup
* Fix resample/wrong-rate display in Pane, ensure that right rate is chosen
  if all current models have an acceptable rate even if previous main model
  had a different one
* Fix "global zoom" broken in previous commit
* Some fixes to spectrogram cache area updating (makes spectrogram appear
  more quickly, previously it had a tendency to refresh with empty space)
* Fixes to colour 3d plot normalization

/* -*- 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 and QMUL.
    
    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 "PluginParameterBox.h"

#include "AudioDial.h"

#include "plugin/PluginXml.h"

#include "base/RangeMapper.h"

#include <QDoubleSpinBox>
#include <QGridLayout>
#include <QComboBox>
#include <QCheckBox>
#include <QLayout>
#include <QLabel>

#include <iostream>
#include <string>

#include <cmath>

PluginParameterBox::PluginParameterBox(Vamp::PluginBase *plugin, QWidget *parent) :
    QFrame(parent),
    m_plugin(plugin)
{
    m_layout = new QGridLayout;
    setLayout(m_layout);
    populate();
}

PluginParameterBox::~PluginParameterBox()
{
}

void
PluginParameterBox::populate()
{
    Vamp::PluginBase::ParameterList params = m_plugin->getParameterDescriptors();
    Vamp::PluginBase::ProgramList programs = m_plugin->getPrograms();

    m_params.clear();

    if (params.empty() && programs.empty()) {
        m_layout->addWidget
            (new QLabel(tr("This plugin has no adjustable parameters.")),
             0, 0);
    }

    int offset = 0;

    if (!programs.empty()) {

        std::string currentProgram = m_plugin->getCurrentProgram();

        QComboBox *programCombo = new QComboBox;
        programCombo->setMaxVisibleItems(20);

        for (int i = 0; i < programs.size(); ++i) {
            programCombo->addItem(programs[i].c_str());
            if (programs[i] == currentProgram) {
                programCombo->setCurrentIndex(i);
            }
        }

        m_layout->addWidget(new QLabel(tr("Program")), 0, 0);
        m_layout->addWidget(programCombo, 0, 1, 1, 2);

        connect(programCombo, SIGNAL(currentIndexChanged(const QString &)),
                this, SLOT(programComboChanged(const QString &)));

        offset = 1;
    }

    for (size_t i = 0; i < params.size(); ++i) {

        QString identifier = params[i].identifier.c_str();
        QString name = params[i].name.c_str();
        QString unit = params[i].unit.c_str();

        float min = params[i].minValue;
        float max = params[i].maxValue;
        float deft = params[i].defaultValue;
        float value = m_plugin->getParameter(params[i].identifier);

        float qtz = 0.0;
        if (params[i].isQuantized) qtz = params[i].quantizeStep;

        std::vector<std::string> valueNames = params[i].valueNames;

        // construct an integer range

        int imin = 0, imax = 100;

        if (qtz > 0.0) {
            imax = int((max - min) / qtz);
        } else {
            qtz = (max - min) / 100.0;
        }

        //!!! would be nice to ensure the default value corresponds to
        // an integer!

        QLabel *label = new QLabel(name);
        if (params[i].description != "") {
            label->setToolTip(params[i].description.c_str());
        }
        m_layout->addWidget(label, i + offset, 0);

        ParamRec rec;
        rec.param = params[i];
        rec.dial = 0;
        rec.spin = 0;
        rec.check = 0;
        rec.combo = 0;
        
        if (params[i].isQuantized && !valueNames.empty()) {
            
            QComboBox *combobox = new QComboBox;
            combobox->setObjectName(identifier);
            for (unsigned int j = 0; j < valueNames.size(); ++j) {
                combobox->addItem(valueNames[j].c_str());
                if (lrintf((value - min) / qtz) == j) {
                    combobox->setCurrentIndex(j);
                }
            }
            connect(combobox, SIGNAL(activated(int)),
                    this, SLOT(dialChanged(int)));
            m_layout->addWidget(combobox, i + offset, 1, 1, 2);
            rec.combo = combobox;

        } else if (min == 0.0 && max == 1.0 && qtz == 1.0) {
            
            QCheckBox *checkbox = new QCheckBox;
            checkbox->setObjectName(identifier);
            checkbox->setCheckState(value == 0.0 ? Qt::Unchecked : Qt::Checked);
            connect(checkbox, SIGNAL(stateChanged(int)),
                    this, SLOT(checkBoxChanged(int)));
            m_layout->addWidget(checkbox, i + offset, 2);
            rec.check = checkbox;

        } else {
            
            AudioDial *dial = new AudioDial;
            dial->setObjectName(name);
            dial->setMinimum(imin);
            dial->setMaximum(imax);
            dial->setPageStep(1);
            dial->setNotchesVisible((imax - imin) <= 12);
            dial->setDefaultValue(lrintf((deft - min) / qtz));
            dial->setValue(lrintf((value - min) / qtz));
            dial->setFixedWidth(32);
            dial->setFixedHeight(32);
            dial->setRangeMapper(new LinearRangeMapper
                                 (imin, imax, min, max, unit));
            dial->setShowToolTip(true);
            connect(dial, SIGNAL(valueChanged(int)),
                    this, SLOT(dialChanged(int)));
            m_layout->addWidget(dial, i + offset, 1);

            QDoubleSpinBox *spinbox = new QDoubleSpinBox;
            spinbox->setObjectName(identifier);
            spinbox->setMinimum(min);
            spinbox->setMaximum(max);
            spinbox->setSuffix(QString(" %1").arg(unit));
            spinbox->setSingleStep(qtz);
            spinbox->setValue(value);
            spinbox->setDecimals(4);
            connect(spinbox, SIGNAL(valueChanged(double)),
                    this, SLOT(spinBoxChanged(double)));
            m_layout->addWidget(spinbox, i + offset, 2);
            rec.dial = dial;
            rec.spin = spinbox;
        }

        m_params[identifier] = rec;
        m_nameMap[name] = identifier;
    }
}

void
PluginParameterBox::dialChanged(int ival)
{
    QObject *obj = sender();
    QString identifier = obj->objectName();

    if (m_params.find(identifier) == m_params.end() &&
        m_nameMap.find(identifier) != m_nameMap.end()) {
        identifier = m_nameMap[identifier];
    }

    if (m_params.find(identifier) == m_params.end()) {
        std::cerr << "WARNING: PluginParameterBox::dialChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
        return;
    }

    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;

    float min = params.minValue;
    float max = params.maxValue;

    float newValue;

    float qtz = 0.0;
    if (params.isQuantized) qtz = params.quantizeStep;

    AudioDial *ad = dynamic_cast<AudioDial *>(obj);
    
    if (ad && ad->rangeMapper()) {
        
        newValue = ad->mappedValue();
        if (newValue < min) newValue = min;
        if (newValue > max) newValue = max;
        if (qtz != 0.0) {
            ival = lrintf((newValue - min) / qtz);
            newValue = min + ival * qtz;
        }

    } else {
        if (qtz == 0.0) {
            qtz = (max - min) / 100.0;
        }
        newValue = min + ival * qtz;
    }

    QDoubleSpinBox *spin = m_params[identifier].spin;
    if (spin) {
        spin->blockSignals(true);
        spin->setValue(newValue);
        spin->blockSignals(false);
    }

    m_plugin->setParameter(identifier.toStdString(), newValue);

    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
}

void
PluginParameterBox::checkBoxChanged(int state)
{
    QObject *obj = sender();
    QString identifier = obj->objectName();

    if (m_params.find(identifier) == m_params.end() &&
        m_nameMap.find(identifier) != m_nameMap.end()) {
        identifier = m_nameMap[identifier];
    }

    if (m_params.find(identifier) == m_params.end()) {
        std::cerr << "WARNING: PluginParameterBox::checkBoxChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
        return;
    }

    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;

    if (state) m_plugin->setParameter(identifier.toStdString(), 1.0);
    else m_plugin->setParameter(identifier.toStdString(), 0.0);

    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
}

void
PluginParameterBox::spinBoxChanged(double value)
{
    QObject *obj = sender();
    QString identifier = obj->objectName();

    if (m_params.find(identifier) == m_params.end() &&
        m_nameMap.find(identifier) != m_nameMap.end()) {
        identifier = m_nameMap[identifier];
    }

    if (m_params.find(identifier) == m_params.end()) {
        std::cerr << "WARNING: PluginParameterBox::spinBoxChanged: Unknown parameter \"" << identifier.toStdString() << "\"" << std::endl;
        return;
    }

    Vamp::PluginBase::ParameterDescriptor params = m_params[identifier].param;

    float min = params.minValue;
    float max = params.maxValue;

    float qtz = 0.0;
    if (params.isQuantized) qtz = params.quantizeStep;
    
    if (qtz > 0.0) {
        int step = int((value - min) / qtz);
        value = min + step * qtz;
    }

    int imin = 0, imax = 100;
    
    if (qtz > 0.0) {
        imax = int((max - min) / qtz);
    } else {
        qtz = (max - min) / 100.0;
    }

    int ival = (value - min) / qtz;

    AudioDial *dial = m_params[identifier].dial;
    if (dial) {
        dial->blockSignals(true);
        dial->setValue(ival);
        dial->blockSignals(false);
    }

    m_plugin->setParameter(identifier.toStdString(), value);

    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
}

void
PluginParameterBox::programComboChanged(const QString &newProgram)
{
    m_plugin->selectProgram(newProgram.toStdString());

    for (std::map<QString, ParamRec>::iterator i = m_params.begin();
         i != m_params.end(); ++i) {

        Vamp::PluginBase::ParameterDescriptor &param = i->second.param;
        float value = m_plugin->getParameter(param.identifier);

        if (i->second.spin) {
            i->second.spin->blockSignals(true);
            i->second.spin->setValue(value);
            i->second.spin->blockSignals(false);
        }

        if (i->second.dial) {

            float min = param.minValue;
            float max = param.maxValue;

            float qtz = 0.0;
            if (param.isQuantized) qtz = param.quantizeStep;

            if (qtz == 0.0) {
                qtz = (max - min) / 100.0;
            }

            i->second.dial->blockSignals(true);
            i->second.dial->setValue(lrintf((value - min) / qtz));
            i->second.dial->blockSignals(false);
        }

        if (i->second.combo) {
            i->second.combo->blockSignals(true);
            i->second.combo->setCurrentIndex(value);
            i->second.combo->blockSignals(false);
        }
    }

    emit pluginConfigurationChanged(PluginXml(m_plugin).toXmlString());
}