view widgets/PluginParameterDialog.cpp @ 77:fd348f36c0d3

* Implement harmonic cursor in spectrogram
* Implement layer export.  This doesn't quite do the right thing for the SV
  XML layer export yet -- it doesn't include layer display information, so
  when imported, it only creates an invisible model.  Could also do with
  fixing CSV file import so as to work correctly for note and text layers.

/* -*- 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 "PluginParameterDialog.h"

#include "PluginParameterBox.h"

#include <QGridLayout>
#include <QLabel>
#include <QGroupBox>
#include <QHBoxLayout>
#include <QPushButton>
#include <QMessageBox>
#include <QComboBox>

PluginParameterDialog::PluginParameterDialog(Vamp::PluginBase *plugin,
                                             int sourceChannels,
                                             int targetChannels,
                                             int defaultChannel,
					     QWidget *parent) :
    QDialog(parent),
    m_plugin(plugin),
    m_channel(defaultChannel),
    m_parameterBox(0)
{
    QGridLayout *grid = new QGridLayout;
    setLayout(grid);

    QGroupBox *pluginBox = new QGroupBox;
    pluginBox->setTitle(tr("Plugin"));
    grid->addWidget(pluginBox, 0, 0);

    QGridLayout *subgrid = new QGridLayout;
    pluginBox->setLayout(subgrid);

    subgrid->setSpacing(0);
    subgrid->setMargin(10);

    QFont font(pluginBox->font());
    font.setBold(true);

    QLabel *nameLabel = new QLabel(plugin->getDescription().c_str());
    nameLabel->setFont(font);

    QLabel *makerLabel = new QLabel(plugin->getMaker().c_str());

    QLabel *versionLabel = new QLabel(QString("%1")
                                      .arg(plugin->getPluginVersion()));

    QLabel *copyrightLabel = new QLabel(plugin->getCopyright().c_str());

    QLabel *typeLabel = new QLabel(plugin->getType().c_str());
    typeLabel->setFont(font);

    subgrid->addWidget(new QLabel(tr("Name:")), 0, 0);
    subgrid->addWidget(nameLabel, 0, 1);

    subgrid->addWidget(new QLabel(tr("Type:")), 1, 0);
    subgrid->addWidget(typeLabel, 1, 1);

    subgrid->addWidget(new QLabel(tr("Maker:")), 2, 0);
    subgrid->addWidget(makerLabel, 2, 1);

    subgrid->addWidget(new QLabel(tr("Copyright:  ")), 3, 0);
    subgrid->addWidget(copyrightLabel, 3, 1);

    subgrid->addWidget(new QLabel(tr("Version:")), 4, 0);
    subgrid->addWidget(versionLabel, 4, 1);

    subgrid->setColumnStretch(1, 2);

    QGroupBox *paramBox = new QGroupBox;
    paramBox->setTitle(tr("Plugin Parameters"));
    grid->addWidget(paramBox, 1, 0);
    grid->setRowStretch(1, 10);

    QHBoxLayout *paramLayout = new QHBoxLayout;
    paramLayout->setMargin(0);
    paramBox->setLayout(paramLayout);

    m_parameterBox = new PluginParameterBox(m_plugin);
    connect(m_parameterBox, SIGNAL(pluginConfigurationChanged(QString)),
            this,  SIGNAL(pluginConfigurationChanged(QString)));
    paramLayout->addWidget(m_parameterBox);

    if (sourceChannels != targetChannels) {

        // At the moment we can only cope with the case where
        // sourceChannels > targetChannels and targetChannels == 1

        if (sourceChannels < targetChannels) {

            QMessageBox::warning
                (parent,
                 tr("Channel mismatch"),
                 tr("This plugin requires at least %1 input channels, but only %2 %3 available.  The plugin probably will not work correctly.").arg(targetChannels).arg(sourceChannels).arg(sourceChannels != 1 ? tr("are") : tr("is")),
                 QMessageBox::Ok,
                 QMessageBox::NoButton);

        } else {

            QGroupBox *channelBox = new QGroupBox;
            channelBox->setTitle(tr("Channels"));
            grid->addWidget(channelBox, 2, 0);
            
            QVBoxLayout *channelLayout = new QVBoxLayout;
            channelBox->setLayout(channelLayout);

            if (targetChannels != 1) {

                channelLayout->addWidget
                    (new QLabel(tr("This plugin accepts no more than %1 input channels,\nbut %2 are available.  Only the first %3 will be used.\n")
                                .arg(targetChannels)
                                .arg(sourceChannels)
                                .arg(targetChannels)));

            } else {

                channelLayout->addWidget(new QLabel(tr("This plugin only has a single channel input,\nbut the source has %1 channels.").arg(sourceChannels)));

                QComboBox *channelCombo = new QComboBox;
                channelCombo->addItem(tr("Use mean of source channels"));
                for (int i = 0; i < sourceChannels; ++i) {
                    channelCombo->addItem(tr("Use channel %1 only").arg(i + 1));
                }

                connect(channelCombo, SIGNAL(activated(int)),
                        this, SLOT(channelComboChanged(int)));

                channelLayout->addWidget(channelCombo);
            }
        }
    }

    QHBoxLayout *hbox = new QHBoxLayout;
    grid->addLayout(hbox, 3, 0);
    
    QPushButton *ok = new QPushButton(tr("OK"));
    QPushButton *cancel = new QPushButton(tr("Cancel"));
    hbox->addStretch(10);
    hbox->addWidget(ok);
    hbox->addWidget(cancel);
    connect(ok, SIGNAL(clicked()), this, SLOT(accept()));
    connect(cancel, SIGNAL(clicked()), this, SLOT(reject()));
}

PluginParameterDialog::~PluginParameterDialog()
{
}

void
PluginParameterDialog::channelComboChanged(int index)
{
    m_channel = index - 1;
}