amuse/Editor/SampleEditor.cpp

#include "SampleEditor.hpp"
#include "MainWindow.hpp"
#include "amuse/DSPCodec.hpp"
#include <QPainter>
#include <QPaintEvent>
#include <QSpinBox>
#include <QScrollBar>
#include <QCheckBox>

SampleEditor* SampleView::getEditor() const
{
    return qobject_cast<SampleEditor*>(parentWidget()->parentWidget()->parentWidget());
}

void SampleView::seekToSample(qreal sample)
{
    sample = std::min(sample, qreal(m_sample->getNumSamples()));

    if (m_sample->isFormatDSP())
    {
        if (sample < m_curSamplePos)
        {
            m_prev1 = m_prev2 = 0;
            m_curSamplePos = 0.0;
        }

        uint32_t startBlock = uint32_t(m_curSamplePos) / 14;
        uint32_t startRem = uint32_t(m_curSamplePos) % 14;
        uint32_t endBlock = uint32_t(sample) / 14;
        uint32_t endRem = uint32_t(sample) % 14;

        if (startRem)
        {
            uint32_t end = 14;
            if (startBlock == endBlock)
            {
                end = endRem;
                endRem = 0;
            }
            DSPDecompressFrameRangedStateOnly(m_sampleData + 8 * startBlock, m_sample->m_ADPCMParms.dsp.m_coefs,
                                              &m_prev1, &m_prev2, startRem, end);
            if (end == 14)
                ++startBlock;
        }

        for (uint32_t b = startBlock; b < endBlock; ++b)
        {
            DSPDecompressFrameStateOnly(m_sampleData + 8 * b, m_sample->m_ADPCMParms.dsp.m_coefs,
                                        &m_prev1, &m_prev2, 14);
        }

        if (endRem)
        {
            DSPDecompressFrameStateOnly(m_sampleData + 8 * endBlock, m_sample->m_ADPCMParms.dsp.m_coefs,
                                        &m_prev1, &m_prev2, endRem);
        }
    }

    m_curSamplePos = sample;
}

std::pair<std::pair<qreal, qreal>, std::pair<qreal, qreal>> SampleView::iterateSampleInterval(qreal interval)
{
    std::pair<std::pair<qreal, qreal>, std::pair<qreal, qreal>> ret = {{0.0, 1.0}, {0.0, -1.0}}; // min,max avg,peak
    qreal avg = 0.0;
    qreal div = 0.0;
    qreal endSample = std::min(m_curSamplePos + interval, qreal(m_sample->getNumSamples()));

    auto accumulate = [&ret, &avg, &div](int16_t sample)
    {
        qreal sampleF = sample / 32768.0;
        avg += sampleF;
        div += 1.0;
        ret.first.second = std::min(ret.first.second, sampleF);
        ret.second.second = std::max(ret.second.second, sampleF);
    };

    if (m_sample->isFormatDSP())
    {
        uint32_t startBlock = uint32_t(m_curSamplePos) / 14;
        uint32_t startRem = uint32_t(m_curSamplePos) % 14;
        uint32_t endBlock = uint32_t(endSample) / 14;
        uint32_t endRem = uint32_t(endSample) % 14;

        int16_t sampleBlock[14];

        if (startRem)
        {
            uint32_t end = 14;
            if (startBlock == endBlock)
            {
                end = endRem;
                endRem = 0;
            }
            DSPDecompressFrameRanged(sampleBlock, m_sampleData + 8 * startBlock, m_sample->m_ADPCMParms.dsp.m_coefs,
                                     &m_prev1, &m_prev2, startRem, end);
            for (int s = 0; s < end - startRem; ++s)
                accumulate(sampleBlock[s]);
            if (end == 14)
                ++startBlock;
        }

        for (uint32_t b = startBlock; b < endBlock; ++b)
        {
            DSPDecompressFrame(sampleBlock, m_sampleData + 8 * b, m_sample->m_ADPCMParms.dsp.m_coefs,
                               &m_prev1, &m_prev2, 14);
            for (int s = 0; s < 14; ++s)
                accumulate(sampleBlock[s]);
        }

        if (endRem)
        {
            DSPDecompressFrame(sampleBlock, m_sampleData + 8 * endBlock, m_sample->m_ADPCMParms.dsp.m_coefs,
                               &m_prev1, &m_prev2, endRem);
            for (int s = 0; s < endRem; ++s)
                accumulate(sampleBlock[s]);
        }
    }
    else if (m_sample->getSampleFormat() == amuse::SampleFormat::PCM_PC)
    {
        for (uint32_t s = uint32_t(m_curSamplePos); s < uint32_t(endSample); ++s)
            accumulate(reinterpret_cast<const int16_t*>(m_sampleData)[s]);
    }

    m_curSamplePos = endSample;

    if (div == 0.0)
        return {};

    avg /= div;

    if (avg > 0.0)
    {
        ret.first.first = ret.first.second;
        ret.second.first = avg;
    }
    else
    {
        ret.first.first = avg;
        ret.second.first = ret.second.second;
    }

    return ret;
}

void SampleView::paintEvent(QPaintEvent* ev)
{
    QPainter painter(this);

    constexpr int rulerHeight = 28;
    int sampleHeight = height() - rulerHeight;

    qreal deviceRatio = devicePixelRatioF();
    qreal rectStart = ev->rect().x();
    qreal deviceWidth = ev->rect().width() * deviceRatio;
    qreal increment = 1.0 / deviceRatio;
    qreal deviceSamplesPerPx = m_samplesPerPx / deviceRatio;
    qreal startSample = rectStart * m_samplesPerPx;
    qreal startSampleRem = std::fmod(startSample, deviceSamplesPerPx);
    if (startSampleRem > DBL_EPSILON)
    {
        startSample -= startSampleRem;
        deviceWidth += startSampleRem;
        rectStart = startSample / m_samplesPerPx;
    }

    if (m_sample)
    {
        QPen peakPen(QColor(255, 147, 41), increment);
        QPen avgPen(QColor(254, 177, 68), increment);

        qreal scale = -sampleHeight / 2.0;
        qreal trans = sampleHeight / 2.0;

        seekToSample(startSample);

        std::pair<std::pair<qreal, qreal>, std::pair<qreal, qreal>> avgPeak;
        for (qreal i = 0.0; i < deviceWidth; i += increment)
        {
            if (m_curSamplePos + deviceSamplesPerPx > m_sample->getNumSamples())
                break;
            if (i == 0.0 || std::floor(m_curSamplePos) != std::floor(m_curSamplePos + deviceSamplesPerPx))
                avgPeak = iterateSampleInterval(deviceSamplesPerPx);
            else
                m_curSamplePos += deviceSamplesPerPx;
            painter.setPen(peakPen);
            painter.drawLine(QPointF(rectStart + i, avgPeak.first.second * scale + trans),
                             QPointF(rectStart + i, avgPeak.second.second * scale + trans));
            painter.setPen(avgPen);
            painter.drawLine(QPointF(rectStart + i, avgPeak.first.first * scale + trans),
                             QPointF(rectStart + i, avgPeak.second.first * scale + trans));
        }
    }

    painter.setBrush(palette().brush(QPalette::Base));
    painter.setPen(Qt::NoPen);
    painter.drawRect(QRect(ev->rect().x(), sampleHeight, ev->rect().width(), rulerHeight));

    constexpr qreal minNumSpacing = 40.0;

    qreal binaryDiv = 1.0;
    while (m_samplesPerPx * minNumSpacing > binaryDiv)
        binaryDiv *= 2.0;

    qreal numSpacing = binaryDiv / m_samplesPerPx;
    qreal tickSpacing = numSpacing / 5;

    int startX = std::max(0, int(ev->rect().x() - numSpacing));
    int lastNumDiv = int(startX / numSpacing);
    int lastTickDiv = int(startX / tickSpacing);

    qreal samplePos = startX * m_samplesPerPx;
    painter.setFont(m_rulerFont);
    painter.setPen(QPen(QColor(127, 127, 127), increment));
    for (int i = startX; i < ev->rect().x() + ev->rect().width() + numSpacing; ++i)
    {
        int thisNumDiv = int(i / numSpacing);
        int thisTickDiv = int(i / tickSpacing);

        if (thisNumDiv != lastNumDiv)
        {
            painter.drawLine(i, sampleHeight + 1, i, sampleHeight + 8);
            lastNumDiv = thisNumDiv;
            lastTickDiv = thisTickDiv;

            painter.drawText(QRectF(i - numSpacing / 2.0, sampleHeight + 11.0, numSpacing, 12.0),
                QString::number(int(samplePos)), QTextOption(Qt::AlignCenter));
        }
        else if (thisTickDiv != lastTickDiv)
        {
            painter.drawLine(i, sampleHeight + 1, i, sampleHeight + 5);
            lastTickDiv = thisTickDiv;
        }

        samplePos += m_samplesPerPx;
    }

    if (m_sample)
    {
        if (m_sample->m_loopLengthSamples != 0)
        {
            int loopStart = m_sample->m_loopStartSample;
            int loopEnd = loopStart + m_sample->m_loopLengthSamples - 1;
            QPointF points[4];

            painter.setPen(QPen(Qt::green, increment));
            painter.setBrush(Qt::green);
            qreal startPos = loopStart / m_samplesPerPx;
            painter.drawLine(QPointF(startPos, 0.0), QPointF(startPos, height()));
            points[0] = QPointF(startPos, height() - 6.0);
            points[1] = QPointF(startPos - 6.0, height());
            points[2] = QPointF(startPos + 6.0, height());
            points[3] = QPointF(startPos, height() - 6.0);
            painter.drawPolygon(points, 4);

            painter.setPen(QPen(Qt::red, increment));
            painter.setBrush(Qt::red);
            qreal endPos = loopEnd / m_samplesPerPx;
            painter.drawLine(QPointF(endPos, 0.0), QPointF(endPos, height()));
            points[0] = QPointF(endPos, height() - 6.0);
            points[1] = QPointF(endPos - 6.0, height());
            points[2] = QPointF(endPos + 6.0, height());
            points[3] = QPointF(endPos, height() - 6.0);
            painter.drawPolygon(points, 4);
        }

        if (m_displaySamplePos >= 0)
        {
            painter.setPen(QPen(Qt::white, increment));
            qreal pos = m_displaySamplePos / m_samplesPerPx;
            painter.drawLine(QPointF(pos, 0.0), QPointF(pos, height()));
        }
    }
}

void SampleView::calculateSamplesPerPx()
{
    m_samplesPerPx = (1.0 - m_zoomFactor) * m_baseSamplesPerPx + m_zoomFactor * 1.0;
}

void SampleView::resetZoom()
{
    if (QScrollArea* scroll = qobject_cast<QScrollArea*>(parentWidget()->parentWidget()))
    {
        m_baseSamplesPerPx = m_sample->getNumSamples() / qreal(scroll->width() - 4);
        calculateSamplesPerPx();
        setMinimumWidth(int(m_sample->getNumSamples() / m_samplesPerPx) + 1);
        update();
    }
}

void SampleView::setZoom(int zVal)
{
    m_zoomFactor = zVal / 99.0;
    calculateSamplesPerPx();
    setMinimumWidth(int(m_sample->getNumSamples() / m_samplesPerPx) + 1);
    update();
}

void SampleView::showEvent(QShowEvent* ev)
{
    setZoom(0);
}

void SampleView::mousePressEvent(QMouseEvent* ev)
{
    if (m_sample && m_sample->m_loopLengthSamples != 0)
    {
        int loopStart = m_sample->m_loopStartSample;
        int startPos = int(loopStart / m_samplesPerPx);
        int startDelta = std::abs(startPos - ev->pos().x());
        bool startPass = startDelta < 20;

        int loopEnd = loopStart + m_sample->m_loopLengthSamples - 1;
        int endPos = int(loopEnd / m_samplesPerPx);
        int endDelta = std::abs(endPos - ev->pos().x());
        bool endPass = endDelta < 20;

        if (startPass && endPass)
        {
            if (startDelta == endDelta)
            {
                if (ev->pos().x() < startPos)
                    m_dragState = DragState::Start;
                else
                    m_dragState = DragState::End;
            }
            else if (startDelta < endDelta)
                m_dragState = DragState::Start;
            else
                m_dragState = DragState::End;
        }
        else if (startPass)
            m_dragState = DragState::Start;
        else if (endPass)
            m_dragState = DragState::End;

        getEditor()->m_controls->setFileWrite(m_dragState == DragState::None);

        mouseMoveEvent(ev);
    }
}

void SampleView::mouseReleaseEvent(QMouseEvent* ev)
{
    m_dragState = DragState::None;
    getEditor()->m_controls->setFileWrite(true);
}

void SampleView::mouseMoveEvent(QMouseEvent* ev)
{
    if (m_dragState == DragState::Start)
        getEditor()->m_controls->setLoopStartSample(int(ev->pos().x() * m_samplesPerPx));
    else if (m_dragState == DragState::End)
        getEditor()->m_controls->setLoopEndSample(int(ev->pos().x() * m_samplesPerPx));
}

void SampleView::wheelEvent(QWheelEvent* ev)
{
    if (QScrollArea* scroll = qobject_cast<QScrollArea*>(parentWidget()->parentWidget()))
    {
        /* Send wheel event directly to the scroll bar */
        QApplication::sendEvent(scroll->horizontalScrollBar(), ev);
    }
}

bool SampleView::loadData(ProjectModel::SampleNode* node)
{
    bool reset = m_node.get() != node;
    m_node = node;

    ProjectModel::GroupNode* group = g_MainWindow->projectModel()->getGroupNode(m_node.get());
    std::tie(m_sample, m_sampleData) = group->getAudioGroup()->getSampleData(m_node->id(), m_node->m_obj.get());
    if (reset)
        resetZoom();

    m_playbackMacro = amuse::MakeObj<amuse::SoundMacro>();
    amuse::SoundMacro::CmdStartSample* startSample =
        static_cast<amuse::SoundMacro::CmdStartSample*>(
        m_playbackMacro->insertNewCmd(0, amuse::SoundMacro::CmdOp::StartSample));
    startSample->sample.id = m_node->id();
    m_playbackMacro->insertNewCmd(1, amuse::SoundMacro::CmdOp::End);

    update();

    return reset;
}

void SampleView::unloadData()
{
    m_node.reset();
    m_sample.reset();
    m_playbackMacro.reset();
    update();
}

ProjectModel::INode* SampleView::currentNode() const
{
    return m_node.get();
}

amuse::SampleEntryData* SampleView::entryData() const
{
    return m_sample.get();
}

const amuse::SoundMacro* SampleView::soundMacro() const
{
    return m_playbackMacro.get();
}

void SampleView::setSamplePos(int pos)
{
    if (pos != m_displaySamplePos)
    {
        if (pos >= 0)
        {
            int lastPos = m_displaySamplePos;
            m_displaySamplePos = pos;
            updateSampleRange(lastPos, pos);
        }
        else
        {
            m_displaySamplePos = pos;
            update();
        }
    }
}

void SampleView::updateSampleRange(int oldSamp, int newSamp)
{
    qreal lastPos = oldSamp / m_samplesPerPx;
    qreal newPos = newSamp / m_samplesPerPx;
    update(int(std::min(lastPos, newPos)) - 10, 0,
           int(std::fabs(newPos - lastPos)) + 20, height());
}

SampleView::SampleView(QWidget* parent)
: QWidget(parent)
{
    setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
    m_rulerFont.setPointSize(8);
}

void SampleControls::zoomSliderChanged(int val)
{
    SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
    editor->m_sampleView->setZoom(val);
}

class SampLoopUndoCommand : public EditorUndoCommand
{
    uint32_t m_redoStartVal, m_redoEndVal, m_undoStartVal, m_undoEndVal;
    int m_fieldIdx;
    bool m_undid = false;
public:
    SampLoopUndoCommand(uint32_t redoStart, uint32_t redoEnd, const QString& fieldName,
                        int fieldIdx, amuse::ObjToken<ProjectModel::SampleNode> node)
    : EditorUndoCommand(node.get(), SampleControls::tr("Change %1").arg(fieldName)),
      m_redoStartVal(redoStart), m_redoEndVal(redoEnd), m_fieldIdx(fieldIdx) {}
    void undo()
    {
        m_undid = true;
        amuse::SampleEntryData* data = m_node.cast<ProjectModel::SampleNode>()->m_obj->m_data.get();
        data->setLoopStartSample(m_undoStartVal);
        data->setLoopEndSample(m_undoEndVal);
        EditorUndoCommand::undo();
        if (SampleEditor* e = static_cast<SampleEditor*>(g_MainWindow->getEditorWidget()))
            e->m_controls->doFileWrite();
    }
    void redo()
    {
        amuse::SampleEntryData* data = m_node.cast<ProjectModel::SampleNode>()->m_obj->m_data.get();
        m_undoStartVal = data->getLoopStartSample();
        m_undoEndVal = data->getLoopEndSample();
        data->setLoopStartSample(m_redoStartVal);
        data->setLoopEndSample(m_redoEndVal);
        if (m_undid)
        {
            EditorUndoCommand::redo();
            if (SampleEditor* e = static_cast<SampleEditor*>(g_MainWindow->getEditorWidget()))
                e->m_controls->doFileWrite();
        }
    }
    bool mergeWith(const QUndoCommand* other)
    {
        if (other->id() == id() && static_cast<const SampLoopUndoCommand*>(other)->m_fieldIdx == m_fieldIdx)
        {
            m_redoStartVal = static_cast<const SampLoopUndoCommand*>(other)->m_redoStartVal;
            m_redoEndVal = static_cast<const SampLoopUndoCommand*>(other)->m_redoEndVal;
            return true;
        }
        return false;
    }
    int id() const { return int(Id::SampLoop); }
};

void SampleControls::loopStateChanged(int state)
{
    if (m_enableUpdate)
    {
        SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
        amuse::SampleEntryData* data = editor->m_sampleView->entryData();
        if (state == Qt::Checked)
        {
            g_MainWindow->pushUndoCommand(new SampLoopUndoCommand(atUint32(m_loopStart->value()),
                uint32_t(m_loopEnd->value()), tr("Loop"), 0, editor->m_sampleView->m_node));
            m_loopStart->setEnabled(true);
            m_loopEnd->setEnabled(true);
            if (m_loopStart->value() == 0 && m_loopEnd->value() == 0)
            {
                m_enableUpdate = false;
                m_loopEnd->setValue(data->getNumSamples() - 1);
                m_loopStart->setMaximum(m_loopEnd->value());
                m_enableUpdate = true;
            }
            data->m_loopStartSample = atUint32(m_loopStart->value());
            data->m_loopLengthSamples = m_loopEnd->value() + 1 - data->m_loopStartSample;
        }
        else
        {
            g_MainWindow->pushUndoCommand(new SampLoopUndoCommand(0, 0, tr("Loop"), 0, editor->m_sampleView->m_node));
            m_loopStart->setEnabled(false);
            m_loopEnd->setEnabled(false);
            data->m_loopStartSample = 0;
            data->m_loopLengthSamples = 0;
        }
        editor->m_sampleView->update();
        doFileWrite();
    }
}

void SampleControls::startValueChanged(int val)
{
    if (m_enableUpdate)
    {
        SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
        amuse::SampleEntryData* data = editor->m_sampleView->entryData();

        int oldPos = data->getLoopStartSample();
        g_MainWindow->pushUndoCommand(new SampLoopUndoCommand(atUint32(val), data->getLoopEndSample(), tr("Loop Start"),
                                                              1, editor->m_sampleView->m_node));

        data->setLoopStartSample(atUint32(val));
        m_loopEnd->setMinimum(val);

        editor->m_sampleView->updateSampleRange(oldPos, val);
        doFileWrite();
    }
}

void SampleControls::endValueChanged(int val)
{
    if (m_enableUpdate)
    {
        SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
        amuse::SampleEntryData* data = editor->m_sampleView->entryData();

        int oldPos = data->getLoopEndSample();
        g_MainWindow->pushUndoCommand(new SampLoopUndoCommand(data->getLoopStartSample(), atUint32(val), tr("Loop End"),
                                                              2, editor->m_sampleView->m_node));

        data->setLoopEndSample(atUint32(val));
        m_loopStart->setMaximum(val);

        editor->m_sampleView->updateSampleRange(oldPos, val);
        doFileWrite();
    }
}

class SampPitchUndoCommand : public EditorUndoCommand
{
    uint8_t m_redoPitchVal, m_undoPitchVal;
    bool m_undid = false;
public:
    SampPitchUndoCommand(atUint8 redoPitch, amuse::ObjToken<ProjectModel::SampleNode> node)
    : EditorUndoCommand(node.get(), SampleControls::tr("Change Base Pitch")),
      m_redoPitchVal(redoPitch) {}
    void undo()
    {
        m_undid = true;
        amuse::SampleEntryData* data = m_node.cast<ProjectModel::SampleNode>()->m_obj->m_data.get();
        data->m_pitch = m_undoPitchVal;
        EditorUndoCommand::undo();
        if (SampleEditor* e = static_cast<SampleEditor*>(g_MainWindow->getEditorWidget()))
            e->m_controls->doFileWrite();
    }
    void redo()
    {
        amuse::SampleEntryData* data = m_node.cast<ProjectModel::SampleNode>()->m_obj->m_data.get();
        m_undoPitchVal = data->m_pitch;
        data->m_pitch = m_redoPitchVal;
        if (m_undid)
        {
            EditorUndoCommand::redo();
            if (SampleEditor* e = static_cast<SampleEditor*>(g_MainWindow->getEditorWidget()))
                e->m_controls->doFileWrite();
        }
    }
    bool mergeWith(const QUndoCommand* other)
    {
        if (other->id() == id())
        {
            m_redoPitchVal = static_cast<const SampPitchUndoCommand*>(other)->m_redoPitchVal;
            return true;
        }
        return false;
    }
    int id() const { return int(Id::SampPitch); }
};

void SampleControls::pitchValueChanged(int val)
{
    if (m_enableUpdate)
    {
        SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
        amuse::SampleEntryData* data = editor->m_sampleView->entryData();

        g_MainWindow->pushUndoCommand(new SampPitchUndoCommand(atUint8(val), editor->m_sampleView->m_node));

        data->m_pitch = atUint8(val);
        doFileWrite();
    }
}

void SampleControls::makeWAVVersion()
{
    SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
    ProjectModel::SampleNode* node = static_cast<ProjectModel::SampleNode*>(editor->currentNode());
    g_MainWindow->projectModel()->getGroupNode(node)->getAudioGroup()->
        makeWAVVersion(node->id(), node->m_obj.get());
    updateFileState();
}

void SampleControls::makeCompressedVersion()
{
    SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
    ProjectModel::SampleNode* node = static_cast<ProjectModel::SampleNode*>(editor->currentNode());
    g_MainWindow->projectModel()->getGroupNode(node)->getAudioGroup()->
        makeCompressedVersion(node->id(), node->m_obj.get());
    updateFileState();
}

void SampleControls::showInBrowser()
{
    ShowInGraphicalShell(this, m_path);
}

void SampleControls::updateFileState()
{
    m_enableUpdate = false;

    SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
    ProjectModel::SampleNode* node = static_cast<ProjectModel::SampleNode*>(editor->currentNode());

    amuse::SystemString path;
    amuse::SampleFileState state =
        g_MainWindow->projectModel()->getGroupNode(node)->getAudioGroup()->
            getSampleFileState(node->id(), node->m_obj.get(), &path);
    disconnect(m_makeOtherConn);

    switch (state)
    {
    case amuse::SampleFileState::MemoryOnlyWAV:
    case amuse::SampleFileState::CompressedNoWAV:
        m_makeOtherVersion->setText(tr("Make WAV Version"));
        m_makeOtherVersion->setDisabled(false);
        m_makeOtherConn = connect(m_makeOtherVersion, SIGNAL(clicked(bool)), this, SLOT(makeWAVVersion()));
        break;
    case amuse::SampleFileState::MemoryOnlyCompressed:
    case amuse::SampleFileState::WAVRecent:
    case amuse::SampleFileState::WAVNoCompressed:
        m_makeOtherVersion->setText(tr("Make Compressed Version"));
        m_makeOtherVersion->setDisabled(false);
        m_makeOtherConn = connect(m_makeOtherVersion, SIGNAL(clicked(bool)), this, SLOT(makeCompressedVersion()));
        break;
    default:
        m_makeOtherVersion->setText(tr("Up To Date"));
        m_makeOtherVersion->setDisabled(true);
        break;
    }

    amuse::SampleEntryData* data = editor->m_sampleView->entryData();
    m_loopCheck->setChecked(data->m_loopLengthSamples != 0);
    int loopStart = 0;
    int loopEnd = 0;
    int loopMax = data->getNumSamples() - 1;
    if (data->m_loopLengthSamples != 0)
    {
        loopStart = data->m_loopStartSample;
        loopEnd = loopStart + data->m_loopLengthSamples - 1;
    }
    m_loopStart->setMaximum(loopEnd);
    m_loopEnd->setMinimum(loopStart);
    m_loopEnd->setMaximum(loopMax);
    m_loopStart->setValue(loopStart);
    m_loopEnd->setValue(loopEnd);
    m_basePitch->setValue(data->m_pitch);
    m_loopStart->setEnabled(data->m_loopLengthSamples != 0);
    m_loopEnd->setEnabled(data->m_loopLengthSamples != 0);

    if (!path.empty())
    {
        m_path = SysStringToQString(path);
        m_showInBrowser->setDisabled(false);
    }
    else
    {
        m_path = QString();
        m_showInBrowser->setDisabled(true);
    }

    m_enableUpdate = true;
}

void SampleControls::doFileWrite()
{
    if (m_enableFileWrite)
    {
        SampleEditor* editor = qobject_cast<SampleEditor*>(parentWidget());
        ProjectModel::SampleNode* node = static_cast<ProjectModel::SampleNode*>(editor->currentNode());
        g_MainWindow->projectModel()->getGroupNode(node)->getAudioGroup()->
            patchSampleMetadata(node->id(), node->m_obj.get());
    }
}

void SampleControls::setFileWrite(bool w)
{
    m_enableFileWrite = w;
    doFileWrite();
}

void SampleControls::loadData(bool reset)
{
    m_zoomSlider->setDisabled(false);
    m_loopCheck->setDisabled(false);
    m_loopStart->setDisabled(false);
    m_loopEnd->setDisabled(false);
    m_basePitch->setDisabled(false);
    if (reset)
        m_zoomSlider->setValue(0);
    updateFileState();
}

void SampleControls::unloadData()
{
    m_zoomSlider->setDisabled(true);
    m_loopCheck->setDisabled(true);
    m_loopStart->setDisabled(true);
    m_loopEnd->setDisabled(true);
    m_basePitch->setDisabled(true);
    m_makeOtherVersion->setText(tr("Nothing Loaded"));
    m_makeOtherVersion->setDisabled(true);
    m_showInBrowser->setDisabled(true);
}

SampleControls::SampleControls(QWidget* parent)
: QFrame(parent)
{
    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
    setFixedHeight(100);
    setFrameShape(QFrame::StyledPanel);
    setFrameShadow(QFrame::Sunken);
    setBackgroundRole(QPalette::Base);
    setAutoFillBackground(true);

    QPalette palette = QWidget::palette();
    palette.setColor(QPalette::Base, palette.color(QPalette::Background));

    QHBoxLayout* mainLayout = new QHBoxLayout;

    QGridLayout* leftLayout = new QGridLayout;

    leftLayout->addWidget(new QLabel(tr("Zoom")), 0, 0);
    m_zoomSlider = new QSlider(Qt::Horizontal);
    m_zoomSlider->setDisabled(true);
    m_zoomSlider->setRange(0, 99);
    connect(m_zoomSlider, SIGNAL(valueChanged(int)), this, SLOT(zoomSliderChanged(int)));
    leftLayout->addWidget(m_zoomSlider, 1, 0);

    leftLayout->addWidget(new QLabel(tr("Loop")), 0, 1);
    m_loopCheck = new QCheckBox;
    m_loopCheck->setPalette(palette);
    m_loopCheck->setDisabled(true);
    connect(m_loopCheck, SIGNAL(stateChanged(int)), this, SLOT(loopStateChanged(int)));
    leftLayout->addWidget(m_loopCheck, 1, 1);

    leftLayout->addWidget(new QLabel(tr("Start")), 0, 2);
    m_loopStart = new QSpinBox;
    m_loopStart->setPalette(palette);
    m_loopStart->setDisabled(true);
    connect(m_loopStart, SIGNAL(valueChanged(int)), this, SLOT(startValueChanged(int)));
    leftLayout->addWidget(m_loopStart, 1, 2);

    leftLayout->addWidget(new QLabel(tr("End")), 0, 3);
    m_loopEnd = new QSpinBox;
    m_loopEnd->setPalette(palette);
    m_loopEnd->setDisabled(true);
    connect(m_loopEnd, SIGNAL(valueChanged(int)), this, SLOT(endValueChanged(int)));
    leftLayout->addWidget(m_loopEnd, 1, 3);

    leftLayout->addWidget(new QLabel(tr("Base Pitch")), 0, 4);
    m_basePitch = new QSpinBox;
    m_basePitch->setPalette(palette);
    m_basePitch->setDisabled(true);
    m_basePitch->setMinimum(0);
    m_basePitch->setMaximum(127);
    connect(m_basePitch, SIGNAL(valueChanged(int)), this, SLOT(pitchValueChanged(int)));
    leftLayout->addWidget(m_basePitch, 1, 4);

    leftLayout->setColumnMinimumWidth(0, 100);
    leftLayout->setColumnMinimumWidth(1, 50);
    leftLayout->setColumnMinimumWidth(2, 75);
    leftLayout->setColumnMinimumWidth(3, 75);
    leftLayout->setColumnMinimumWidth(4, 75);
    leftLayout->setRowMinimumHeight(0, 22);
    leftLayout->setRowMinimumHeight(1, 37);
    leftLayout->setContentsMargins(10, 6, 0, 14);

    QVBoxLayout* rightLayout = new QVBoxLayout;

    m_makeOtherVersion = new QPushButton(tr("Nothing Loaded"));
    m_makeOtherVersion->setMinimumWidth(250);
    m_makeOtherVersion->setDisabled(true);
    rightLayout->addWidget(m_makeOtherVersion);
    m_showInBrowser = new QPushButton(ShowInGraphicalShellString());
    m_showInBrowser->setMinimumWidth(250);
    m_showInBrowser->setDisabled(true);
    connect(m_showInBrowser, SIGNAL(clicked(bool)), this, SLOT(showInBrowser()));
    rightLayout->addWidget(m_showInBrowser);

    mainLayout->addLayout(leftLayout);
    mainLayout->addStretch(1);
    mainLayout->addLayout(rightLayout);
    setLayout(mainLayout);
}

bool SampleEditor::loadData(ProjectModel::SampleNode* node)
{
    m_controls->loadData(m_sampleView->loadData(node));
    return true;
}

void SampleEditor::unloadData()
{
    m_sampleView->unloadData();
    m_controls->unloadData();
}

ProjectModel::INode* SampleEditor::currentNode() const
{
    return m_sampleView->currentNode();
}

const amuse::SoundMacro* SampleEditor::soundMacro() const
{
    return m_sampleView->soundMacro();
}

void SampleEditor::setSamplePos(int pos)
{
    m_sampleView->setSamplePos(pos);
}

void SampleEditor::resizeEvent(QResizeEvent* ev)
{
    m_sampleView->resetZoom();
}

SampleEditor::SampleEditor(QWidget* parent)
: EditorWidget(parent), m_scrollArea(new QScrollArea),
  m_sampleView(new SampleView), m_controls(new SampleControls)
{
    m_scrollArea->setWidget(m_sampleView);
    m_scrollArea->setWidgetResizable(true);

    QVBoxLayout* layout = new QVBoxLayout;
    layout->setContentsMargins(QMargins());
    layout->setSpacing(1);
    layout->addWidget(m_scrollArea);
    layout->addWidget(m_controls);
    setLayout(layout);
}