1130 lines
35 KiB
C++
1130 lines
35 KiB
C++
/* This file is a part of plaYUVer project
|
|
* Copyright (C) 2014 by Luis Lucas (luisfrlucas@gmail.com)
|
|
* Joao Carreira (jfmcarreira@gmail.com)
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/**
|
|
* \file HistogramWidget.cpp
|
|
* \brief Function to show image histogram
|
|
* Based on the work of Ricardo N. Rocha Sardo in SCode project
|
|
*/
|
|
|
|
//TODO:
|
|
// - Optimizar paintEvent. Parece haver codigo redundante !!
|
|
|
|
#include "config.h"
|
|
#include "PlaYUVerDefs.h"
|
|
#include <cmath>
|
|
#include <QtGui>
|
|
#include <QtDebug>
|
|
#include "HistogramWidget.h"
|
|
#include "PlaYUVerFrameStatistics.h"
|
|
#include "PlaYUVerFrame.h"
|
|
|
|
namespace plaYUVer
|
|
{
|
|
|
|
const QBrush g_eColorPallet[][3] =
|
|
{
|
|
{
|
|
Qt::darkGray, // Luma
|
|
Qt::blue, // Cb
|
|
Qt::red, // Cr
|
|
},
|
|
{
|
|
Qt::red, // Channel Red
|
|
Qt::green, // Channel Green
|
|
Qt::blue, // Channel Blue
|
|
}, };
|
|
|
|
class HistogramWidgetPrivate
|
|
{
|
|
public:
|
|
|
|
enum RepaintType
|
|
{
|
|
HistogramNone = 0, // No current histogram values calculation.
|
|
HistogramDataLoading, // The image is being loaded
|
|
HistogramStarted, // Histogram values calculation started.
|
|
HistogramCompleted, // Histogram values calculation completed.
|
|
HistogramSkipped, // Skip histogram while playing
|
|
HistogramFailed // Histogram values calculation failed.
|
|
};
|
|
|
|
HistogramWidgetPrivate()
|
|
{
|
|
blinkTimer = 0;
|
|
sixteenBits = false;
|
|
inSelected = false;
|
|
blinkFlag = false;
|
|
clearFlag = HistogramNone;
|
|
xmin = 0.0;
|
|
xmax = 0.0;
|
|
range = 255;
|
|
guideVisible = false;
|
|
inInitialRepaintWait = false;
|
|
}
|
|
|
|
// Current selection information.
|
|
double xmin;
|
|
double xminOrg;
|
|
double xmax;
|
|
Int range;
|
|
Int clearFlag; // Clear drawing zone with message.
|
|
|
|
// Image informations
|
|
Int imageChannels;
|
|
Int imageColorSpace;
|
|
bool sixteenBits;
|
|
|
|
bool guideVisible; // Display color guide.
|
|
bool statisticsVisible; // Display tooltip histogram statistics.
|
|
bool inSelected;
|
|
bool selectMode; // If true, a part of the histogram can be
|
|
// selected !
|
|
bool blinkFlag;
|
|
bool blinkComputation; // If true, a message will be displayed during
|
|
// histogram computation, else nothing (limit
|
|
// flicker effect in widget especially for small
|
|
// image/computation time).
|
|
bool lumaChannel; // Compute luminance channel if true.
|
|
bool inInitialRepaintWait;
|
|
|
|
QTimer *blinkTimer;
|
|
|
|
QColor colorGuide;
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Constructors
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
//Constructor without image data
|
|
HistogramWidget::HistogramWidget( Int width, Int height, QWidget *parent ) :
|
|
QWidget( parent )
|
|
{
|
|
setAttribute( Qt::WA_DeleteOnClose );
|
|
|
|
d = new HistogramWidgetPrivate;
|
|
setupWidget( width, height );
|
|
|
|
m_imageHistogram = 0;
|
|
m_selectionHistogram = 0;
|
|
|
|
update();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Destructor
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
HistogramWidget::~HistogramWidget()
|
|
{
|
|
d->blinkTimer->stop();
|
|
|
|
if( m_imageHistogram )
|
|
delete m_imageHistogram;
|
|
|
|
if( m_selectionHistogram )
|
|
delete m_selectionHistogram;
|
|
|
|
delete d;
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Setup Functions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::setupWidget( Int width, Int height, HistogramOptions options )
|
|
{
|
|
m_channelType = LumaHistogram;
|
|
m_scaleType = LogScaleHistogram;
|
|
m_colorType = FirstChannelColor;
|
|
m_renderingType = FullImageHistogram;
|
|
|
|
setOptions( options );
|
|
|
|
setMouseTracking( true );
|
|
setMinimumSize( width, height );
|
|
|
|
d->blinkTimer = new QTimer( this );
|
|
|
|
connect( d->blinkTimer, SIGNAL( timeout() ), this, SLOT( slotBlinkTimerDone() ) );
|
|
}
|
|
|
|
Void HistogramWidget::setOptions( HistogramOptions options )
|
|
{
|
|
d->statisticsVisible = ( bool )( options & ShowStatistics );
|
|
d->selectMode = ( bool )( options & SelectMode );
|
|
d->blinkComputation = ( bool )( options & BlinkComputation );
|
|
d->lumaChannel = ( bool )( options & ShowLumaChannel );
|
|
}
|
|
|
|
Void HistogramWidget::setHistogramGuideByColor( QColor color )
|
|
{
|
|
d->guideVisible = true;
|
|
d->colorGuide = color;
|
|
update();
|
|
}
|
|
|
|
Void HistogramWidget::reset()
|
|
{
|
|
d->guideVisible = false;
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramNone;
|
|
// Remove histogram data from memory.
|
|
if( m_imageHistogram )
|
|
{
|
|
delete m_imageHistogram;
|
|
m_imageHistogram = 0;
|
|
}
|
|
if( m_selectionHistogram )
|
|
{
|
|
delete m_selectionHistogram;
|
|
m_selectionHistogram = 0;
|
|
}
|
|
update();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Custom Event Handler
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::customEvent( QEvent *event )
|
|
{
|
|
if( !event )
|
|
{
|
|
return;
|
|
}
|
|
|
|
PlaYUVerFrameStatistics::EventData *ed = ( PlaYUVerFrameStatistics::EventData* )event;
|
|
|
|
if( !ed )
|
|
{
|
|
return;
|
|
}
|
|
|
|
if( ed->histogram != m_imageHistogram && ed->histogram != m_selectionHistogram )
|
|
{
|
|
return;
|
|
}
|
|
|
|
if( ed->starting )
|
|
{
|
|
setCursor( Qt::WaitCursor );
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramStarted;
|
|
if( !d->inInitialRepaintWait )
|
|
{
|
|
if( d->clearFlag != HistogramWidgetPrivate::HistogramDataLoading )
|
|
{
|
|
// enter initial repaint wait, repaint only after waiting
|
|
// a short time so that very fast computation does not create
|
|
// flicker.
|
|
d->inInitialRepaintWait = true;
|
|
d->blinkTimer->start( 100 );
|
|
}
|
|
else
|
|
{
|
|
// after the initial repaint, we can repaint immediately
|
|
update();
|
|
d->blinkTimer->start( 200 );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( ed->success )
|
|
{
|
|
// Repaint histogram
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramCompleted;
|
|
d->blinkTimer->stop();
|
|
d->inInitialRepaintWait = false;
|
|
unsetCursor();
|
|
|
|
// Send signals to refresh information if necessary.
|
|
// The signals may trigger multiple repaints, aVoid this,
|
|
// we repaint once afterwards.
|
|
setUpdatesEnabled( false );
|
|
|
|
notifyValuesChanged();
|
|
emit signalHistogramComputationDone( d->sixteenBits );
|
|
|
|
setUpdatesEnabled( true );
|
|
update();
|
|
}
|
|
else
|
|
{
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramFailed;
|
|
d->blinkTimer->stop();
|
|
d->inInitialRepaintWait = false;
|
|
update();
|
|
unsetCursor();
|
|
// Remove old histogram data from memory.
|
|
if( m_imageHistogram )
|
|
{
|
|
delete m_imageHistogram;
|
|
m_imageHistogram = 0;
|
|
}
|
|
if( m_selectionHistogram )
|
|
{
|
|
delete m_selectionHistogram;
|
|
m_selectionHistogram = 0;
|
|
}
|
|
emit signalHistogramComputationFailed();
|
|
}
|
|
}
|
|
|
|
//delete ed;
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Data Loading Functions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::setDataLoading()
|
|
{
|
|
if( d->clearFlag != HistogramWidgetPrivate::HistogramDataLoading )
|
|
{
|
|
setCursor( Qt::WaitCursor );
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramDataLoading;
|
|
// enter initial repaint wait, repaint only after waiting
|
|
// a short time so that very fast computation does not create flicker
|
|
d->inInitialRepaintWait = true;
|
|
d->blinkTimer->start( 100 );
|
|
update();
|
|
}
|
|
}
|
|
|
|
Void HistogramWidget::setLoadingSkipped()
|
|
{
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramSkipped;
|
|
d->blinkTimer->stop();
|
|
d->inInitialRepaintWait = false;
|
|
update();
|
|
unsetCursor();
|
|
}
|
|
|
|
Void HistogramWidget::setLoadingFailed()
|
|
{
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramFailed;
|
|
d->blinkTimer->stop();
|
|
d->inInitialRepaintWait = false;
|
|
update();
|
|
unsetCursor();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::stopHistogramComputation()
|
|
{
|
|
if( m_imageHistogram )
|
|
m_imageHistogram->stopCalcHistogramValues();
|
|
|
|
if( m_selectionHistogram )
|
|
m_selectionHistogram->stopCalcHistogramValues();
|
|
|
|
d->blinkTimer->stop();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Update Data Methods
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::updateData( Pel ***imageData, UInt imageWidth, UInt imageHeight, Int bitsPerChannel, Int pixel_format, UInt chroma_size, Pel ***selData,
|
|
UInt selWidth, UInt selHeight )
|
|
{
|
|
Int colorSpace = PlaYUVerFrame::isRGBorYUVorGray( pixel_format );
|
|
d->sixteenBits = ( bool )( bitsPerChannel == 16 );
|
|
d->imageColorSpace = colorSpace;
|
|
|
|
switch( colorSpace )
|
|
{
|
|
case PlaYUVerFrame::COLOR_GRAY:
|
|
d->imageChannels = 1;
|
|
break;
|
|
case PlaYUVerFrame::COLOR_YUV:
|
|
case PlaYUVerFrame::COLOR_RGB:
|
|
d->imageChannels = 3;
|
|
break;
|
|
case PlaYUVerFrame::COLOR_ARGB:
|
|
d->imageChannels = 4;
|
|
break;
|
|
default:
|
|
d->imageChannels = 1;
|
|
}
|
|
|
|
// We are deleting the histogram data,
|
|
// so we must not use it to draw any more.
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramNone;
|
|
|
|
// Do not using PlaYUVerFrameStatistics::getHistogramSegment()
|
|
// method here because histogram hasn't yet been computed.
|
|
d->range = d->sixteenBits ? 65535 : 255;
|
|
emit signalMaximumValueChanged( d->range );
|
|
|
|
// Remove old histogram data from memory.
|
|
if( m_imageHistogram )
|
|
delete m_imageHistogram;
|
|
|
|
if( m_selectionHistogram )
|
|
delete m_selectionHistogram;
|
|
|
|
// Calc new histogram data
|
|
m_imageHistogram = new PlaYUVerFrameStatistics( imageData, imageWidth, imageHeight, bitsPerChannel, pixel_format, chroma_size, this );
|
|
|
|
if( selData && selWidth && selHeight )
|
|
m_selectionHistogram = new PlaYUVerFrameStatistics( selData, selWidth, selHeight, bitsPerChannel, pixel_format, chroma_size, this );
|
|
else
|
|
m_selectionHistogram = 0L;
|
|
}
|
|
|
|
Void HistogramWidget::updateData( const PlaYUVerFrame *playuver_frame, const PlaYUVerFrame *playuver_selection )
|
|
{
|
|
d->sixteenBits = false;
|
|
//d->imageColorSpace = image.getPelFormat();
|
|
d->imageColorSpace = PlaYUVerFrame::isRGBorYUVorGray( playuver_frame->getPelFormat() );
|
|
d->imageChannels = playuver_frame->getNumberChannels();
|
|
|
|
// We are deleting the histogram data,
|
|
// so we must not use it to draw any more.
|
|
d->clearFlag = HistogramWidgetPrivate::HistogramNone;
|
|
|
|
// Do not using PlaYUVerFrameStatistics::getHistogramSegment()
|
|
// method here because histogram hasn't yet been computed.
|
|
|
|
d->range = d->sixteenBits ? 65535 : 255;
|
|
emit signalMaximumValueChanged( d->range );
|
|
|
|
// Remove old histogram data from memory.
|
|
if( m_imageHistogram )
|
|
delete m_imageHistogram;
|
|
|
|
if( m_selectionHistogram )
|
|
delete m_selectionHistogram;
|
|
|
|
// Calc new histogram data
|
|
m_imageHistogram = new PlaYUVerFrameStatistics( playuver_frame, this );
|
|
|
|
if( playuver_selection )
|
|
m_selectionHistogram = new PlaYUVerFrameStatistics( playuver_selection, this );
|
|
else
|
|
m_selectionHistogram = NULL;
|
|
|
|
}
|
|
|
|
Void HistogramWidget::updateSelectionData( Pel ***selData, UInt selWidth, UInt selHeight, Int bitsPerChannel, Int pixel_format, UInt chroma_size )
|
|
{
|
|
// Remove old histogram data from memory.
|
|
|
|
if( m_selectionHistogram )
|
|
delete m_selectionHistogram;
|
|
|
|
// Calc new histogram data
|
|
m_selectionHistogram = new PlaYUVerFrameStatistics( selData, selWidth, selHeight, bitsPerChannel, pixel_format, chroma_size, this );
|
|
}
|
|
|
|
Void HistogramWidget::updateSelectionData( const PlaYUVerFrame *selection )
|
|
{
|
|
// Remove old histogram data from memory.
|
|
|
|
if( m_selectionHistogram )
|
|
delete m_selectionHistogram;
|
|
|
|
m_selectionHistogram = new PlaYUVerFrameStatistics( selection, this );
|
|
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::slotBlinkTimerDone()
|
|
{
|
|
d->blinkFlag = !d->blinkFlag;
|
|
d->inInitialRepaintWait = false;
|
|
update();
|
|
d->blinkTimer->start( 200 );
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Paint Event
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::paintEvent( QPaintEvent * )
|
|
{
|
|
int maxX = size().width() - 1;
|
|
int maxY = size().height() - 1;
|
|
|
|
// Widget is disabled, not initialized,
|
|
// or loading, but no message shall be drawn:
|
|
// Drawing grayed frame.
|
|
if( !isEnabled() || d->clearFlag == HistogramWidgetPrivate::HistogramNone
|
|
|| ( !d->blinkComputation && ( d->clearFlag == HistogramWidgetPrivate::HistogramStarted || d->clearFlag == HistogramWidgetPrivate::HistogramDataLoading ) ) )
|
|
{
|
|
QPainter p1( this );
|
|
|
|
p1.fillRect( 0, 0, maxX, maxY, palette().color( QPalette::Disabled, QPalette::Window ) );
|
|
p1.setPen( QPen( palette().color( QPalette::Disabled, QPalette::WindowText ), 1, Qt::SolidLine ) );
|
|
p1.drawRect( 0, 0, maxX, maxY );
|
|
|
|
return;
|
|
}
|
|
// Image data is loading or histogram is being computed:
|
|
// Draw message.
|
|
else if( d->blinkComputation && ( d->clearFlag == HistogramWidgetPrivate::HistogramStarted || d->clearFlag == HistogramWidgetPrivate::HistogramDataLoading ) )
|
|
{
|
|
QPainter p1( this );
|
|
|
|
p1.fillRect( 0, 0, maxX, maxY, Qt::white );
|
|
|
|
if( d->blinkFlag )
|
|
p1.setPen( Qt::green );
|
|
else
|
|
p1.setPen( Qt::darkGreen );
|
|
|
|
if( d->clearFlag == HistogramWidgetPrivate::HistogramDataLoading )
|
|
p1.drawText( 0, 0, maxX, maxY, Qt::AlignCenter, tr( "Loading image..." ) );
|
|
else
|
|
p1.drawText( 0, 0, maxX, maxY, Qt::AlignCenter, tr( "Histogram\ncalculation\nin progress..." ) );
|
|
|
|
return;
|
|
}
|
|
// Histogram computation skipped:
|
|
// Draw message.
|
|
else if( d->clearFlag == HistogramWidgetPrivate::HistogramSkipped )
|
|
{
|
|
QPainter p1( this );
|
|
p1.fillRect( 0, 0, maxX, maxY, Qt::white );
|
|
p1.setPen( Qt::darkGreen );
|
|
p1.drawText( 0, 0, maxX, maxY, Qt::AlignCenter, tr( "Histogram\ncalculation\nskipped." ) );
|
|
//bitBlt(this, 0, 0, &pm);
|
|
return;
|
|
}
|
|
// Histogram computation failed:
|
|
// Draw message.
|
|
else if( d->clearFlag == HistogramWidgetPrivate::HistogramFailed )
|
|
{
|
|
QPainter p1( this );
|
|
p1.fillRect( 0, 0, maxX, maxY, Qt::white );
|
|
p1.setPen( Qt::red );
|
|
p1.drawText( 0, 0, maxX, maxY, Qt::AlignCenter, tr( "Histogram\ncalculation\nfailed." ) );
|
|
//bitBlt(this, 0, 0, &pm);
|
|
return;
|
|
}
|
|
|
|
int x, y;
|
|
int yr, yg, yb; // For all color channels.
|
|
int wWidth = width() - 1;
|
|
int wHeight = height() - 1;
|
|
double max;
|
|
class PlaYUVerFrameStatistics *histogram;
|
|
|
|
if( m_renderingType == ImageSelectionHistogram && m_selectionHistogram )
|
|
histogram = m_selectionHistogram;
|
|
else
|
|
histogram = m_imageHistogram;
|
|
|
|
if( !histogram )
|
|
return;
|
|
|
|
x = 0;
|
|
y = 0;
|
|
yr = 0;
|
|
yg = 0;
|
|
yb = 0;
|
|
max = 0.0;
|
|
|
|
switch( m_channelType )
|
|
{
|
|
case HistogramWidget::FirstChannelHistogram: // Y channel.
|
|
max = histogram->getMaximum( PlaYUVerFrameStatistics::YChannel );
|
|
break;
|
|
case HistogramWidget::SecondChannelHistogram: // Cb channel.
|
|
max = histogram->getMaximum( PlaYUVerFrameStatistics::CbChannel );
|
|
break;
|
|
case HistogramWidget::ThirdChannelHistogram: // Cr channel.
|
|
max = histogram->getMaximum( PlaYUVerFrameStatistics::CrChannel );
|
|
break;
|
|
case HistogramWidget::AlphaChannelHistogram: // Alpha channel.
|
|
max = histogram->getMaximum( PlaYUVerFrameStatistics::AlphaChannel );
|
|
break;
|
|
|
|
case HistogramWidget::ColorChannelsHistogram: // All color channels.
|
|
max = qMax( qMax( histogram->getMaximum( PlaYUVerFrameStatistics::YChannel ), histogram->getMaximum( PlaYUVerFrameStatistics::CbChannel ) ),
|
|
histogram->getMaximum( PlaYUVerFrameStatistics::CrChannel ) );
|
|
break;
|
|
case HistogramWidget::LumaHistogram: // Luminance.
|
|
max = histogram->getMaximum( PlaYUVerFrameStatistics::LumaChannel );
|
|
break;
|
|
}
|
|
|
|
switch( m_scaleType )
|
|
{
|
|
case HistogramWidget::LinScaleHistogram:
|
|
break;
|
|
|
|
case HistogramWidget::LogScaleHistogram:
|
|
if( max > 0.0 )
|
|
max = log( max );
|
|
else
|
|
max = 1.0;
|
|
break;
|
|
}
|
|
|
|
// From Qt 4.0, QWidget automatically double-buffers its painting,
|
|
// so there's no need to write double-buffering code in paintEvent()
|
|
// to aVoid flicker.
|
|
QPainter p1( this );
|
|
Int pallet = d->imageColorSpace;
|
|
|
|
// Drawing selection or all histogram values.
|
|
|
|
for( x = 0; x < wWidth; x++ )
|
|
{
|
|
double value = 0.0;
|
|
double value_r = 0.0, value_g = 0.0, value_b = 0.0; // For all channels.
|
|
int i, j;
|
|
|
|
i = ( x * histogram->getHistogramSegment() ) / wWidth;
|
|
j = ( ( x + 1 ) * histogram->getHistogramSegment() ) / wWidth;
|
|
|
|
do
|
|
{
|
|
double v;
|
|
double vr, vg, vb; // For all color channels.
|
|
|
|
v = 0.0;
|
|
vr = 0.0;
|
|
vg = 0.0;
|
|
vb = 0.0;
|
|
|
|
switch( m_channelType )
|
|
{
|
|
case HistogramWidget::FirstChannelHistogram: // Y channel.
|
|
v = histogram->getValue( PlaYUVerFrameStatistics::YChannel, i++ );
|
|
break;
|
|
case HistogramWidget::SecondChannelHistogram: // Cb channel.
|
|
v = histogram->getValue( PlaYUVerFrameStatistics::CbChannel, i++ );
|
|
break;
|
|
case HistogramWidget::ThirdChannelHistogram: // Cr channel.
|
|
v = histogram->getValue( PlaYUVerFrameStatistics::CrChannel, i++ );
|
|
break;
|
|
case HistogramWidget::AlphaChannelHistogram: // Alpha channel.
|
|
v = histogram->getValue( PlaYUVerFrameStatistics::AlphaChannel, i++ );
|
|
break;
|
|
case HistogramWidget::ColorChannelsHistogram: // All color.
|
|
vr = histogram->getValue( PlaYUVerFrameStatistics::YChannel, i );
|
|
vg = histogram->getValue( PlaYUVerFrameStatistics::CbChannel, i );
|
|
vb = histogram->getValue( PlaYUVerFrameStatistics::CrChannel, i++ );
|
|
break;
|
|
case HistogramWidget::LumaHistogram: // Luminance.
|
|
v = histogram->getValue( PlaYUVerFrameStatistics::LumaChannel, i++ );
|
|
break;
|
|
|
|
}
|
|
|
|
if( m_channelType != HistogramWidget::ColorChannelsHistogram )
|
|
{
|
|
if( v > value )
|
|
value = v;
|
|
}
|
|
else
|
|
{
|
|
if( vr > value_r )
|
|
value_r = vr;
|
|
if( vg > value_g )
|
|
value_g = vg;
|
|
if( vb > value_b )
|
|
value_b = vb;
|
|
}
|
|
}
|
|
while( i < j );
|
|
|
|
if( m_channelType != HistogramWidget::ColorChannelsHistogram )
|
|
{
|
|
switch( m_scaleType )
|
|
{
|
|
case HistogramWidget::LinScaleHistogram:
|
|
y = ( int )( ( wHeight * value ) / max );
|
|
break;
|
|
|
|
case HistogramWidget::LogScaleHistogram:
|
|
if( value <= 0.0 )
|
|
value = 1.0;
|
|
y = ( int )( ( wHeight * log( value ) ) / max );
|
|
break;
|
|
|
|
default:
|
|
y = 0;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch( m_scaleType )
|
|
{
|
|
case HistogramWidget::LinScaleHistogram:
|
|
yr = ( int )( ( wHeight * value_r ) / max );
|
|
yg = ( int )( ( wHeight * value_g ) / max );
|
|
yb = ( int )( ( wHeight * value_b ) / max );
|
|
break;
|
|
|
|
case HistogramWidget::LogScaleHistogram:
|
|
if( value_r <= 0.0 )
|
|
value_r = 1.0;
|
|
if( value_g <= 0.0 )
|
|
value_g = 1.0;
|
|
if( value_b <= 0.0 )
|
|
value_b = 1.0;
|
|
yr = ( int )( ( wHeight * log( value_r ) ) / max );
|
|
yg = ( int )( ( wHeight * log( value_g ) ) / max );
|
|
yb = ( int )( ( wHeight * log( value_b ) ) / max );
|
|
break;
|
|
|
|
default:
|
|
yr = 0;
|
|
yg = 0;
|
|
yb = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Drawing the histogram + selection or only the histogram.
|
|
|
|
if( m_channelType != HistogramWidget::ColorChannelsHistogram )
|
|
{
|
|
if( d->selectMode == true ) // Selection mode enable ?
|
|
{
|
|
if( x >= ( int )( d->xmin * wWidth ) && x <= ( int )( d->xmax * wWidth ) )
|
|
{
|
|
p1.setPen( QPen( Qt::black, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
p1.setPen( QPen( Qt::lightGray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - y );
|
|
}
|
|
else
|
|
{
|
|
p1.setPen( QPen( Qt::black, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - y );
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - y, x, 0 );
|
|
|
|
if( x == wWidth / 4 || x == wWidth / 2 || x == 3 * wWidth / 4 )
|
|
{
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
p1.setPen( QPen( Qt::black, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - y );
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - y, x, 0 );
|
|
|
|
if( x == wWidth / 4 || x == wWidth / 2 || x == 3 * wWidth / 4 )
|
|
{
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
}
|
|
}
|
|
}
|
|
else // All colors channel
|
|
{
|
|
if( d->selectMode == true ) // Histogram selection mode enable ?
|
|
{
|
|
if( x >= ( int )( d->xmin * wWidth ) && x <= ( int )( d->xmax * wWidth ) )
|
|
{
|
|
p1.setPen( QPen( Qt::black, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
p1.setPen( QPen( Qt::lightGray, 1, Qt::SolidLine ) );
|
|
|
|
// Witch color must be used on the foreground with all
|
|
// colors channel mode?
|
|
switch( m_colorType )
|
|
{
|
|
case HistogramWidget::FirstChannelColor:
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
break;
|
|
|
|
case HistogramWidget::SecondChannelColor:
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
break;
|
|
|
|
default:
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Which color must be used on the foreground with all
|
|
// colors channel mode?
|
|
switch( m_colorType )
|
|
{
|
|
case HistogramWidget::FirstChannelColor:
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
|
|
break;
|
|
|
|
case HistogramWidget::SecondChannelColor:
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
|
|
break;
|
|
|
|
default:
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
|
|
break;
|
|
}
|
|
|
|
if( x == wWidth / 4 || x == wWidth / 2 || x == 3 * wWidth / 4 )
|
|
{
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Which color must be used on the foreground with all
|
|
// colors channel mode?
|
|
switch( m_colorType )
|
|
{
|
|
case HistogramWidget::FirstChannelColor:
|
|
p1.setPen( QPen( Qt::green, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
p1.setPen( QPen( Qt::blue, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
p1.setPen( QPen( Qt::red, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
|
|
break;
|
|
|
|
case HistogramWidget::SecondChannelColor:
|
|
p1.setPen( QPen( Qt::blue, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
p1.setPen( QPen( Qt::red, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
p1.setPen( QPen( Qt::green, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
|
|
break;
|
|
|
|
default:
|
|
p1.setPen( QPen( Qt::red, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][FirstChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yr );
|
|
p1.setPen( QPen( Qt::green, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][SecondChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yg );
|
|
p1.setPen( QPen( Qt::blue, 1, Qt::SolidLine ) );
|
|
p1.setPen( QPen( g_eColorPallet[pallet][ThirdChannelColor], 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, wHeight - yb );
|
|
|
|
p1.setPen( QPen( Qt::white, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - qMax( qMax( yr, yg ), yb ), x, 0 );
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight - yr - 1, x, wHeight - yr );
|
|
p1.drawLine( x, wHeight - yg - 1, x, wHeight - yg );
|
|
p1.drawLine( x, wHeight - yb - 1, x, wHeight - yb );
|
|
|
|
break;
|
|
}
|
|
|
|
if( x == wWidth / 4 || x == wWidth / 2 || x == 3 * wWidth / 4 )
|
|
{
|
|
p1.setPen( QPen( Qt::gray, 1, Qt::SolidLine ) );
|
|
p1.drawLine( x, wHeight, x, 0 );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Drawing color guide.
|
|
|
|
p1.setPen( QPen( Qt::red, 1, Qt::DotLine ) );
|
|
int guidePos;
|
|
|
|
if( d->guideVisible )
|
|
{
|
|
switch( m_channelType )
|
|
{
|
|
case HistogramWidget::FirstChannelHistogram:
|
|
guidePos = d->colorGuide.red();
|
|
break;
|
|
|
|
case HistogramWidget::SecondChannelHistogram:
|
|
guidePos = d->colorGuide.green();
|
|
break;
|
|
|
|
case HistogramWidget::ThirdChannelHistogram:
|
|
guidePos = d->colorGuide.blue();
|
|
break;
|
|
|
|
case HistogramWidget::LumaHistogram:
|
|
guidePos = qMax( qMax( d->colorGuide.red(), d->colorGuide.green() ), d->colorGuide.blue() );
|
|
break;
|
|
|
|
default: // Alpha.
|
|
guidePos = -1;
|
|
break;
|
|
}
|
|
|
|
if( guidePos != -1 )
|
|
{
|
|
int xGuide = ( guidePos * wWidth ) / histogram->getHistogramSegment();
|
|
p1.drawLine( xGuide, 0, xGuide, wHeight );
|
|
|
|
QString string = tr( "x:%1" ).arg( guidePos );
|
|
QFontMetrics fontMt( string );
|
|
QRect rect = fontMt.boundingRect( 0, 0, wWidth, wHeight, 0, string );
|
|
p1.setPen( QPen( Qt::red, 1, Qt::SolidLine ) );
|
|
rect.moveTop( 1 );
|
|
|
|
if( xGuide < wWidth / 2 )
|
|
{
|
|
rect.moveLeft( xGuide );
|
|
p1.fillRect( rect, QBrush( QColor( 250, 250, 255 ) ) );
|
|
p1.drawRect( rect );
|
|
rect.moveLeft( xGuide + 3 );
|
|
p1.drawText( rect, Qt::AlignLeft, string );
|
|
}
|
|
else
|
|
{
|
|
rect.moveRight( xGuide );
|
|
p1.fillRect( rect, QBrush( QColor( 250, 250, 255 ) ) );
|
|
p1.drawRect( rect );
|
|
rect.moveRight( xGuide - 3 );
|
|
p1.drawText( rect, Qt::AlignRight, string );
|
|
}
|
|
}
|
|
}
|
|
|
|
if( d->statisticsVisible )
|
|
{
|
|
QString tipText, value;
|
|
QString cellBeg( "<tr><td><nobr><font size=-1>" );
|
|
QString cellMid( "</font></nobr></td><td><nobr><font size=-1>" );
|
|
QString cellEnd( "</font></nobr></td></tr>" );
|
|
tipText = "<table cellspacing=0 cellpadding=0>";
|
|
|
|
tipText += cellBeg + tr( "Mean:" ) + cellMid;
|
|
double mean = histogram->getMean( m_channelType, 0, histogram->getHistogramSegment() - 1 );
|
|
tipText += value.setNum( mean, 'f', 1 ) + cellEnd;
|
|
|
|
tipText += cellBeg + tr( "Pixels:" ) + cellMid;
|
|
double pixels = histogram->getPixels();
|
|
tipText += value.setNum( ( float )pixels, 'f', 0 ) + cellEnd;
|
|
|
|
tipText += cellBeg + tr( "Std dev.:" ) + cellMid;
|
|
double stddev = histogram->getStdDev( m_channelType, 0, histogram->getHistogramSegment() - 1 );
|
|
tipText += value.setNum( stddev, 'f', 1 ) + cellEnd;
|
|
|
|
tipText += cellBeg + tr( "Selected:" ) + cellMid;
|
|
double counts = histogram->getCount( m_channelType, 0, histogram->getHistogramSegment() - 1 );
|
|
tipText += value.setNum( ( float )counts, 'f', 0 ) + cellEnd;
|
|
|
|
tipText += cellBeg + tr( "Median:" ) + cellMid;
|
|
double median = histogram->getMedian( m_channelType, 0, histogram->getHistogramSegment() - 1 );
|
|
tipText += value.setNum( median, 'f', 1 ) + cellEnd;
|
|
|
|
tipText += cellBeg + tr( "Percent:" ) + cellMid;
|
|
double percentile = ( pixels > 0 ? ( 100.0 * counts / pixels ) : 0.0 );
|
|
tipText += value.setNum( percentile, 'f', 1 ) + cellEnd;
|
|
|
|
tipText += "</table>";
|
|
|
|
setToolTip( tipText );
|
|
}
|
|
|
|
// Drawing frame.
|
|
|
|
p1.setPen( QPen( Qt::black, 1, Qt::SolidLine ) );
|
|
p1.drawRect( 0, 0, maxX, maxY );
|
|
|
|
//bitBlt(this, 0, 0, &pm);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Mouse Events
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::mousePressEvent( QMouseEvent * e )
|
|
{
|
|
if( d->selectMode == true && d->clearFlag == HistogramWidgetPrivate::HistogramCompleted )
|
|
{
|
|
if( !d->inSelected )
|
|
{
|
|
d->inSelected = true;
|
|
update();
|
|
}
|
|
|
|
d->xmin = ( ( double )e->pos().x() ) / ( ( double )width() );
|
|
d->xminOrg = d->xmin;
|
|
notifyValuesChanged();
|
|
//emit signalValuesChanged( (int)(d->xmin * d->range), );
|
|
d->xmax = 0.0;
|
|
}
|
|
}
|
|
|
|
Void HistogramWidget::mouseReleaseEvent( QMouseEvent * )
|
|
{
|
|
if( d->selectMode == true && d->clearFlag == HistogramWidgetPrivate::HistogramCompleted )
|
|
|
|
{
|
|
d->inSelected = false;
|
|
// Only single click without mouse move? Remove selection.
|
|
if( d->xmax == 0.0 )
|
|
{
|
|
d->xmin = 0.0;
|
|
//emit signalMinValueChanged( 0 );
|
|
//emit signalMaxValueChanged( d->range );
|
|
notifyValuesChanged();
|
|
update();
|
|
}
|
|
}
|
|
}
|
|
|
|
Void HistogramWidget::mouseMoveEvent( QMouseEvent * e )
|
|
{
|
|
if( d->selectMode == true && d->clearFlag == HistogramWidgetPrivate::HistogramCompleted )
|
|
{
|
|
setCursor( Qt::CrossCursor );
|
|
|
|
if( d->inSelected )
|
|
{
|
|
double max = ( ( double )e->pos().x() ) / ( ( double )width() );
|
|
//int max = (int)(e->pos().x()*((float)m_imageHistogram->getHistogramSegment()/(float)width()));
|
|
|
|
if( max < d->xminOrg )
|
|
{
|
|
d->xmax = d->xminOrg;
|
|
d->xmin = max;
|
|
//emit signalMinValueChanged( (int)(d->xmin * d->range) );
|
|
}
|
|
else
|
|
{
|
|
d->xmin = d->xminOrg;
|
|
d->xmax = max;
|
|
}
|
|
|
|
notifyValuesChanged();
|
|
//emit signalMaxValueChanged( d->xmax == 0.0 ? d->range : (int)(d->xmax * d->range) );
|
|
|
|
update();
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Void HistogramWidget::notifyValuesChanged()
|
|
{
|
|
emit signalIntervalChanged( ( int )( d->xmin * d->range ), d->xmax == 0.0 ? d->range : ( int )( d->xmax * d->range ) );
|
|
}
|
|
|
|
Void HistogramWidget::slotMinValueChanged( int min )
|
|
{
|
|
if( d->selectMode == true && d->clearFlag == HistogramWidgetPrivate::HistogramCompleted )
|
|
{
|
|
if( min == 0 && d->xmax == 1.0 )
|
|
{
|
|
// everything is selected means no selection
|
|
d->xmin = 0.0;
|
|
d->xmax = 0.0;
|
|
}
|
|
if( min >= 0 && min < d->range )
|
|
{
|
|
d->xmin = ( ( double )min ) / d->range;
|
|
}
|
|
update();
|
|
}
|
|
}
|
|
|
|
Void HistogramWidget::slotMaxValueChanged( int max )
|
|
{
|
|
if( d->selectMode == true && d->clearFlag == HistogramWidgetPrivate::HistogramCompleted )
|
|
{
|
|
if( d->xmin == 0.0 && max == d->range )
|
|
{
|
|
// everything is selected means no selection
|
|
d->xmin = 0.0;
|
|
d->xmax = 0.0;
|
|
}
|
|
else if( max > 0 && max <= d->range )
|
|
{
|
|
d->xmax = ( ( double )max ) / d->range;
|
|
}
|
|
update();
|
|
}
|
|
}
|
|
|
|
} // NAMESPACE
|
|
|