LevelMeterSignalDB Class Reference

#include <levelmeter.h>

Inheritance diagram for LevelMeterSignalDB:

Collaboration diagram for LevelMeterSignalDB:

Public Types
enum	ColorTheme { ColorGold, ColorGreenYellow, ColorGreenAndBlue, ColorCyanAndBlue }

Public Member Functions
	LevelMeterSignalDB (QWidget *parent=0)
virtual	~LevelMeterSignalDB ()
void	setColorTheme (ColorTheme colorTheme)
void	setRange (int min, int max)
Public Member Functions inherited from LevelMeter
	LevelMeter (QWidget *parent=0)
virtual	~LevelMeter ()
void	paintEvent (QPaintEvent *event)
void	resizeEvent (QResizeEvent *event)
void	setAverageSmoothing (uint32_t smoothingFactor)

Static Public Attributes
static const QColor	m_avgColor [4]
static const QColor	m_decayedPeakColor [4]
static const QColor	m_peakColor [4]

Protected Member Functions
virtual void	render (QPainter *painter)
virtual void	resized ()
Protected Member Functions inherited from LevelMeter
int	shiftx (int val, int width)

Protected Attributes
ColorTheme	m_colorTheme
Protected Attributes inherited from LevelMeter
qreal	m_avgLevel
qreal	m_peakLevel
qreal	m_decayedPeakLevel
QTime	m_peakLevelChanged
qreal	m_peakDecayRate
qreal	m_peakHoldLevel
QTime	m_peakHoldLevelChanged
uint32_t	m_avgSmoothing
QTimer *	m_redrawTimer
QColor	m_avgColor
QColor	m_peakColor
QColor	m_decayedPeakColor
ScaleEngine	m_scaleEngine
QPixmap *	m_backgroundPixmap

Additional Inherited Members
Public Slots inherited from LevelMeter
void	reset ()
void	levelChanged (qreal rmsLevel, qreal peakLevel, int numSamples)
Protected Slots inherited from LevelMeter
void	redrawTimerExpired ()

Detailed Description

Definition at line 158 of file levelmeter.h.

Member Enumeration Documentation

ColorTheme

enum LevelMeterSignalDB::ColorTheme

Enumerator
ColorGold
ColorGreenYellow
ColorGreenAndBlue
ColorCyanAndBlue

Definition at line 161 of file levelmeter.h.

    {
        ColorGold,
        ColorGreenYellow,
        ColorGreenAndBlue,
        ColorCyanAndBlue
    } ColorTheme;

Constructor & Destructor Documentation

LevelMeterSignalDB()

LevelMeterSignalDB::LevelMeterSignalDB

(

QWidget *

parent = 0

)

Definition at line 281 of file levelmeter.cpp.

References Unit::Decibel, LevelMeter::m_scaleEngine, resized(), ScaleEngine::setFont(), ScaleEngine::setOrientation(), and ScaleEngine::setRange().

                                                      :
        LevelMeter(parent),
        m_colorTheme(ColorGold)
{
    m_scaleEngine.setFont(font());
    m_scaleEngine.setOrientation(Qt::Horizontal);
    m_scaleEngine.setRange(Unit::Decibel, -100, 0);

    resized();
}

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~LevelMeterSignalDB()

LevelMeterSignalDB::~LevelMeterSignalDB ( )

virtual

Definition at line 292 of file levelmeter.cpp.

{
}

Member Function Documentation

render()

void LevelMeterSignalDB::render ( QPainter *  painter )

protectedvirtual

Implements LevelMeter.

Definition at line 348 of file levelmeter.cpp.

References m_avgColor, LevelMeter::m_avgLevel, LevelMeter::m_backgroundPixmap, m_colorTheme, m_decayedPeakColor, LevelMeter::m_decayedPeakLevel, m_peakColor, and LevelMeter::m_peakHoldLevel.

{
    painter->drawPixmap(rect(), *m_backgroundPixmap);

    QRect bar = rect();

    // Bottom moving gauge

    bar.setTop(0.5 * rect().height() + 2);
    bar.setBottom(0.75*rect().height());

    bar.setRight(rect().right() - (1.0 - m_avgLevel) * rect().width());
    bar.setLeft(1);
    painter->fillRect(bar, m_avgColor[m_colorTheme]);

    bar.setTop(0.75 * rect().height() + 1);
    bar.setBottom(rect().height() - 1);

    bar.setRight(rect().right() - (1.0 - m_decayedPeakLevel) * rect().width());
    painter->fillRect(bar, m_decayedPeakColor[m_colorTheme]);

    bar.setTop(0.5 * rect().height() + 2);
    bar.setBottom(rect().height() - 1);

    bar.setRight(rect().right() - (1.0 - m_peakHoldLevel) * rect().width());
    bar.setLeft(bar.right() - 2);
    painter->fillRect(bar, m_peakColor[m_colorTheme]);

    // borders
    painter->setPen(QColor(0,0,0));
    painter->drawLine(0, 0, rect().width() - 2, 0);
    painter->drawLine(0, rect().height() - 1, 0, 0);
    painter->setPen(QColor(80,80,80));
    painter->drawLine(1, rect().height() - 1, rect().width() - 1, rect().height() - 1);
    painter->drawLine(rect().width() - 1, rect().height() - 1, rect().width() - 1, 0);
}

resized()

void LevelMeterSignalDB::resized ( )

protectedvirtual

Implements LevelMeter.

Definition at line 301 of file levelmeter.cpp.

References ScaleEngine::getTickList(), i, LevelMeter::m_backgroundPixmap, LevelMeter::m_scaleEngine, ScaleEngine::Tick::major, ScaleEngine::Tick::pos, ScaleEngine::setSize(), LevelMeter::shiftx(), ScaleEngine::Tick::text, ScaleEngine::Tick::textPos, and ScaleEngine::Tick::textSize.

Referenced by LevelMeterSignalDB().

{
    if (m_backgroundPixmap)
    {
        delete m_backgroundPixmap;
    }

    m_backgroundPixmap = new QPixmap(rect().width(), rect().height());
    m_backgroundPixmap->fill(QColor(42, 42, 42, 255));

    QPainter painter(m_backgroundPixmap);
    QRect bar = m_backgroundPixmap->rect();

    // 100% full height white line
    painter.setPen(Qt::white);
    painter.setFont(font());

    m_scaleEngine.setSize(bar.width());
    const ScaleEngine::TickList& scaleTickList = m_scaleEngine.getTickList();


    for (int i = 0; i < scaleTickList.count(); i++)
    {
//        qDebug() << "LevelMeterVU::resized: tick #" << i
//                << " major: " << scaleTickList[i].major
//                << " pos: " << scaleTickList[i].pos
//                << " text: " << scaleTickList[i].text
//                << " textPos: " << scaleTickList[i].textPos
//                << " textSize: " << scaleTickList[i].textSize;
        const ScaleEngine::Tick tick = scaleTickList[i];

        if(tick.major)
        {
            if ((tick.textSize > 0) && (tick.textPos > 0))
            {
                painter.drawText(QPointF(tick.textPos - (tick.textSize/2) - 4, bar.height()/2 - 3), tick.text);
            }

            painter.drawLine(shiftx(tick.pos, bar.width()), 0, shiftx(scaleTickList[i].pos,bar.width()), bar.height());
        }
        else
        {
            painter.drawLine(tick.pos, bar.height()/2 - 2, scaleTickList[i].pos, bar.height()/2);
        }
    }
}

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setColorTheme()

void LevelMeterSignalDB::setColorTheme ( ColorTheme  colorTheme )

inline

Definition at line 172 of file levelmeter.h.

References leansdr::max(), and leansdr::min().

{ m_colorTheme = colorTheme; }

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setRange()

void LevelMeterSignalDB::setRange	(	int	min,
		int	max
	)

Definition at line 296 of file levelmeter.cpp.

References Unit::Decibel, LevelMeter::m_scaleEngine, and ScaleEngine::setRange().

{
    m_scaleEngine.setRange(Unit::Decibel, min, max);
}

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Member Data Documentation

m_avgColor

const QColor LevelMeterSignalDB::m_avgColor

static

Initial value:

= {
        QColor(0xff, 0x8b, 0x00, 128),
        QColor(0x8c, 0xff, 0x00, 128),
        QColor(0x8c, 0xff, 0x00, 128),
        QColor(0x8c, 0xbf, 0xff, 128),
}

Definition at line 175 of file levelmeter.h.

Referenced by LevelMeterVU::render(), and render().

m_colorTheme

ColorTheme LevelMeterSignalDB::m_colorTheme

protected

Definition at line 183 of file levelmeter.h.

Referenced by render().

m_decayedPeakColor

const QColor LevelMeterSignalDB::m_decayedPeakColor

static

Initial value:

= {
        QColor(0x97, 0x54, 0x00, 128),
        QColor(0x53, 0x96, 0x00, 128),
        QColor(0x00, 0x96, 0x53, 128),
        QColor(0x00, 0x94, 0x94, 128),
}

Definition at line 176 of file levelmeter.h.

Referenced by LevelMeterVU::render(), and render().

m_peakColor

const QColor LevelMeterSignalDB::m_peakColor

static

Initial value:

= {
        Qt::red,
        Qt::green,
        Qt::green,
        Qt::cyan
}

Definition at line 177 of file levelmeter.h.

Referenced by LevelMeterVU::render(), and render().

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The documentation for this class was generated from the following files:

• sdrgui/gui/levelmeter.h
• sdrgui/gui/levelmeter.cpp