1 files changed, 0 insertions, 142 deletions
diff --git a/examples/spectrum/app/levelmeter.cpp b/examples/spectrum/app/levelmeter.cpp
deleted file mode 100644
index 35dd388..0000000
--- a/examples/spectrum/app/levelmeter.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
-**     the names of its contributors may be used to endorse or promote
-**     products derived from this software without specific prior written
-**     permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "levelmeter.h"
-
-#include <math.h>
-
-#include <QPainter>
-#include <QTimer>
-#include <QDebug>
-
-
-// Constants
-const int RedrawInterval = 100; // ms
-const qreal PeakDecayRate = 0.001;
-const int PeakHoldLevelDuration = 2000; // ms
-
-
-LevelMeter::LevelMeter(QWidget *parent)
-    :   QWidget(parent)
-    ,   m_rmsLevel(0.0)
-    ,   m_peakLevel(0.0)
-    ,   m_decayedPeakLevel(0.0)
-    ,   m_peakDecayRate(PeakDecayRate)
-    ,   m_peakHoldLevel(0.0)
-    ,   m_redrawTimer(new QTimer(this))
-    ,   m_rmsColor(Qt::red)
-    ,   m_peakColor(255, 200, 200, 255)
-{
-    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
-    setMinimumWidth(30);
-
-    connect(m_redrawTimer, SIGNAL(timeout()), this, SLOT(redrawTimerExpired()));
-    m_redrawTimer->start(RedrawInterval);
-}
-
-LevelMeter::~LevelMeter()
-{
-
-}
-
-void LevelMeter::reset()
-{
-    m_rmsLevel = 0.0;
-    m_peakLevel = 0.0;
-    update();
-}
-
-void LevelMeter::levelChanged(qreal rmsLevel, qreal peakLevel, int numSamples)
-{
-    // Smooth the RMS signal
-    const qreal smooth = pow(qreal(0.9), static_cast<qreal>(numSamples) / 256); // TODO: remove this magic number
-    m_rmsLevel = (m_rmsLevel * smooth) + (rmsLevel * (1.0 - smooth));
-
-    if (peakLevel > m_decayedPeakLevel) {
-        m_peakLevel = peakLevel;
-        m_decayedPeakLevel = peakLevel;
-        m_peakLevelChanged.start();
-    }
-
-    if (peakLevel > m_peakHoldLevel) {
-        m_peakHoldLevel = peakLevel;
-        m_peakHoldLevelChanged.start();
-    }
-
-    update();
-}
-
-void LevelMeter::redrawTimerExpired()
-{
-    // Decay the peak signal
-    const int elapsedMs = m_peakLevelChanged.elapsed();
-    const qreal decayAmount = m_peakDecayRate * elapsedMs;
-    if (decayAmount < m_peakLevel)
-        m_decayedPeakLevel = m_peakLevel - decayAmount;
-    else
-        m_decayedPeakLevel = 0.0;
-
-    // Check whether to clear the peak hold level
-    if (m_peakHoldLevelChanged.elapsed() > PeakHoldLevelDuration)
-        m_peakHoldLevel = 0.0;
-
-    update();
-}
-
-void LevelMeter::paintEvent(QPaintEvent *event)
-{
-    Q_UNUSED(event)
-
-    QPainter painter(this);
-    painter.fillRect(rect(), Qt::black);
-
-    QRect bar = rect();
-
-    bar.setTop(rect().top() + (1.0 - m_peakHoldLevel) * rect().height());
-    bar.setBottom(bar.top() + 5);
-    painter.fillRect(bar, m_rmsColor);
-    bar.setBottom(rect().bottom());
-
-    bar.setTop(rect().top() + (1.0 - m_decayedPeakLevel) * rect().height());
-    painter.fillRect(bar, m_peakColor);
-
-    bar.setTop(rect().top() + (1.0 - m_rmsLevel) * rect().height());
-    painter.fillRect(bar, m_rmsColor);
-}