transportdialog.cpp

来自「LINUX下的混音软件」· C++ 代码 · 共 1,086 行 · 第 1/3 页

TransportDialog::getSMPTEResolution(int &framesPerSecond,
                                    int &bitsPerFrame)
{
    framesPerSecond = m_framesPerSecond;
    bitsPerFrame = m_bitsPerFrame;
}

void
TransportDialog::slotChangeTimeDisplay()
{
    if (m_sampleRate == 0) {

        QCString replyType;
        QByteArray replyData;
        m_sampleRate = 0;

        if (rgapp->sequencerCall("getSampleRate()", replyType, replyData)) {
            QDataStream streamIn(replyData, IO_ReadOnly);
            unsigned int result;
            streamIn >> result;
            m_sampleRate = result;
        } else {
            m_sampleRate = -1;
        }
    }

    switch (m_currentMode) {

    case RealMode:
        if (m_sampleRate > 0)
            m_currentMode = FrameMode;
        else
            m_currentMode = BarMode;
        break;

    case FrameMode:
        m_currentMode = BarMode;
        break;

    case SMPTEMode:
        m_currentMode = BarMode;
        break;

    case BarMode:
        m_currentMode = BarMetronomeMode;
        break;

    case BarMetronomeMode:
        m_currentMode = RealMode;
        break;
    }

    switch (m_currentMode) {

    case RealMode:
        m_clearMetronomeTimer->stop();
        m_transport->TimeDisplayLabel->hide();
        break;

    case SMPTEMode:
        m_clearMetronomeTimer->stop();
        m_transport->TimeDisplayLabel->setText("SMPTE"); // DO NOT i18n
        m_transport->TimeDisplayLabel->show();
        break;

    case BarMode:
        m_clearMetronomeTimer->stop();
        m_transport->TimeDisplayLabel->setText("BAR"); // DO NOT i18n
        m_transport->TimeDisplayLabel->show();
        break;

    case BarMetronomeMode:
        m_clearMetronomeTimer->start(1700, FALSE);
        m_transport->TimeDisplayLabel->setText("MET"); // DO NOT i18n
        m_transport->TimeDisplayLabel->show();
        break;

    case FrameMode:
        m_clearMetronomeTimer->stop();
        m_transport->TimeDisplayLabel->setText(QString("%1").arg(m_sampleRate));
        m_transport->TimeDisplayLabel->show();
        break;
    }
}

void
TransportDialog::slotChangeToEnd()
{
    if (m_transport->ToEndButton->isOn()) {
        m_transport->ToEndLabel->show();
    } else {
        m_transport->ToEndLabel->hide();
    }
}

bool
TransportDialog::isShowingTimeToEnd()
{
    return m_transport->ToEndButton->isOn();
}

void
TransportDialog::displayRealTime(const RealTime &rt)
{
    RealTime st = rt;

    slotResetBackground();

    if (m_lastMode != RealMode) {
        m_transport->HourColonPixmap->show();
        m_transport->MinuteColonPixmap->show();
        m_transport->SecondColonPixmap->hide();
        m_transport->HundredthColonPixmap->hide();
        m_lastMode = RealMode;
    }

    // If time is negative then reverse the time and set the minus flag
    //
    if (st < RealTime::zeroTime) {
        st = RealTime::zeroTime - st;
        if (!m_lastNegative) {
            m_transport->NegativePixmap->setPixmap(m_lcdNegative);
            m_lastNegative = true;
        }
    } else // don't show the flag
    {
        if (m_lastNegative) {
            m_transport->NegativePixmap->clear();
            m_lastNegative = false;
        }
    }

    m_tenThousandths = ( st.usec() / 100 ) % 10;
    m_thousandths = ( st.usec() / 1000 ) % 10;
    m_hundreths = ( st.usec() / 10000 ) % 10;
    m_tenths = ( st.usec() / 100000 ) % 10;

    m_unitSeconds = ( st.sec ) % 10;
    m_tenSeconds = ( st.sec / 10 ) % 6;

    m_unitMinutes = ( st.sec / 60 ) % 10;
    m_tenMinutes = ( st.sec / 600 ) % 6;

    m_unitHours = ( st.sec / 3600 ) % 10;
    m_tenHours = (st.sec / 36000 ) % 10;

    updateTimeDisplay();
}

void
TransportDialog::displayFrameTime(const RealTime &rt)
{
    RealTime st = rt;

    slotResetBackground();

    if (m_lastMode != FrameMode) {
        m_transport->HourColonPixmap->hide();
        m_transport->MinuteColonPixmap->hide();
        m_transport->SecondColonPixmap->hide();
        m_transport->HundredthColonPixmap->hide();
        m_lastMode = FrameMode;
    }

    // If time is negative then reverse the time and set the minus flag
    //
    if (st < RealTime::zeroTime) {
        st = RealTime::zeroTime - st;
        if (!m_lastNegative) {
            m_transport->NegativePixmap->setPixmap(m_lcdNegative);
            m_lastNegative = true;
        }
    } else // don't show the flag
    {
        if (m_lastNegative) {
            m_transport->NegativePixmap->clear();
            m_lastNegative = false;
        }
    }

    long frame = RealTime::realTime2Frame(st, m_sampleRate);

    m_tenThousandths = frame % 10;
    frame /= 10;
    m_thousandths = frame % 10;
    frame /= 10;
    m_hundreths = frame % 10;
    frame /= 10;
    m_tenths = frame % 10;
    frame /= 10;
    m_unitSeconds = frame % 10;
    frame /= 10;
    m_tenSeconds = frame % 10;
    frame /= 10;
    m_unitMinutes = frame % 10;
    frame /= 10;
    m_tenMinutes = frame % 10;
    frame /= 10;
    m_unitHours = frame % 10;
    frame /= 10;
    m_tenHours = frame % 10;
    frame /= 10;

    updateTimeDisplay();
}

void
TransportDialog::displaySMPTETime(const RealTime &rt)
{
    RealTime st = rt;

    slotResetBackground();

    if (m_lastMode != SMPTEMode) {
        m_transport->HourColonPixmap->show();
        m_transport->MinuteColonPixmap->show();
        m_transport->SecondColonPixmap->show();
        m_transport->HundredthColonPixmap->show();
        m_lastMode = SMPTEMode;
    }

    // If time is negative then reverse the time and set the minus flag
    //
    if (st < RealTime::zeroTime) {
        st = RealTime::zeroTime - st;
        if (!m_lastNegative) {
            m_transport->NegativePixmap->setPixmap(m_lcdNegative);
            m_lastNegative = true;
        }
    } else // don't show the flag
    {
        if (m_lastNegative) {
            m_transport->NegativePixmap->clear();
            m_lastNegative = false;
        }
    }

    m_tenThousandths =
        (( st.usec() * m_framesPerSecond * m_bitsPerFrame) / 1000000 ) % 10;
    m_thousandths =
        (( st.usec() * m_framesPerSecond * m_bitsPerFrame) / 10000000 ) %
        (m_bitsPerFrame / 10);
    m_hundreths =
        (( st.usec() * m_framesPerSecond) / 1000000 ) % 10;
    m_tenths =
        (( st.usec() * m_framesPerSecond) / 10000000 ) % 10;

    m_unitSeconds = ( st.sec ) % 10;
    m_tenSeconds = ( st.sec / 10 ) % 6;

    m_unitMinutes = ( st.sec / 60 ) % 10;
    m_tenMinutes = ( st.sec / 600 ) % 6;

    m_unitHours = ( st.sec / 3600 ) % 10;
    m_tenHours = ( st.sec / 36000 ) % 10;

    updateTimeDisplay();
}

void
TransportDialog::displayBarTime(int bar, int beat, int unit)
{
    if (m_lastMode != BarMode) {
        m_transport->HourColonPixmap->hide();
        m_transport->MinuteColonPixmap->show();
        m_transport->SecondColonPixmap->hide();
        m_transport->HundredthColonPixmap->hide();
        m_lastMode = BarMode;
    }

    // If time is negative then reverse the time and set the minus flag
    //
    if (bar < 0) {
        bar = -bar;
        if (!m_lastNegative) {
            m_transport->NegativePixmap->setPixmap(m_lcdNegative);
            m_lastNegative = true;
        }
    } else // don't show the flag
    {
        if (m_lastNegative) {
            m_transport->NegativePixmap->clear();
            m_lastNegative = false;
        }
    }

    if (m_currentMode == BarMetronomeMode && unit < 2) {
        if (beat == 1) {
            slotSetBackground(Qt::red);
        } else {
            slotSetBackground(Qt::cyan);
        }
    } else {
        slotResetBackground();
    }

    m_tenThousandths = ( unit ) % 10;
    m_thousandths = ( unit / 10 ) % 10;
    m_hundreths = ( unit / 100 ) % 10;
    m_tenths = ( unit / 1000 ) % 10;

    if (m_tenths == 0) {
        m_tenths = -1;
        if (m_hundreths == 0) {
            m_hundreths = -1;
            if (m_thousandths == 0) {
                m_thousandths = -1;
            }
        }
    }

    m_unitSeconds = ( beat ) % 10;
    m_tenSeconds = ( beat / 10 ) % 6;

    if (m_tenSeconds == 0) {
        m_tenSeconds = -1;
    }

    m_unitMinutes = ( bar ) % 10;
    m_tenMinutes = ( bar / 10 ) % 10;

    m_unitHours = ( bar / 100 ) % 10;
    m_tenHours = ( bar / 1000 ) % 10;

    if (m_tenHours == 0) {
        m_tenHours = -1;
        if (m_unitHours == 0) {
            m_unitHours = -1;
            if (m_tenMinutes == 0) {
                m_tenMinutes = -1;
            }
        }
    }

    updateTimeDisplay();
}

void
TransportDialog::updateTimeDisplay()
{
    if (m_tenThousandths != m_lastTenThousandths) {
        if (m_tenThousandths < 0)
            m_transport->TenThousandthsPixmap->clear();
        else
            m_transport->TenThousandthsPixmap->setPixmap(m_lcdList[m_tenThousandths]);
        m_lastTenThousandths = m_tenThousandths;
    }

    if (m_thousandths != m_lastThousandths) {
        if (m_thousandths < 0)
            m_transport->ThousandthsPixmap->clear();
        else
            m_transport->ThousandthsPixmap->setPixmap(m_lcdList[m_thousandths]);
        m_lastThousandths = m_thousandths;
    }

    if (m_hundreths != m_lastHundreths) {
        if (m_hundreths < 0)
            m_transport->HundredthsPixmap->clear();
        else
            m_transport->HundredthsPixmap->setPixmap(m_lcdList[m_hundreths]);
        m_lastHundreths = m_hundreths;