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be0c5dca74321f02260caed224f277bb6a8deae4
calyp/app/VideoSubWindow.cpp
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/* This file is a part of Calyp project
* Copyright (C) 2014-2019 by Joao Carreira (jfmcarreira@gmail.com)
* Luis Lucas (luisfrlucas@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 VideoSubWindow.cpp
* \brief Video Sub windows handling
*/
#include "VideoSubWindow.h"
#include <QScrollArea>
#include <QStaticText>
#include "ConfigureFormatDialog.h"
#include "ModulesHandle.h"
#include "QtConcurrent/qtconcurrentrun.h"
#include "SubWindowAbstract.h"
#include <cassert>
#define QT_NO_CONCURRENT
/**
* \brief Functions to control data stream from stream information
*/
QDataStream& operator<<( QDataStream& out, const CalypFileInfoVector& array )
{
CalypFileInfo d;
out << array.size();
for( int i = 0; i < array.size(); i++ )
{
d = array.at( i );
out << d.m_cFilename << d.m_uiWidth << d.m_uiHeight << d.m_iPelFormat << d.m_uiBitsPelPixel << d.m_iEndianness
<< d.m_uiFrameRate << d.m_uiFileSize;
}
return out;
}
QDataStream& operator>>( QDataStream& in, CalypFileInfoVector& array )
{
CalypFileInfo d;
int array_size;
in >> array_size;
for( int i = 0; i < array_size; i++ )
{
in >> d.m_cFilename;
in >> d.m_uiWidth;
in >> d.m_uiHeight;
in >> d.m_iPelFormat;
in >> d.m_uiBitsPelPixel;
in >> d.m_iEndianness;
in >> d.m_uiFrameRate;
in >> d.m_uiFileSize;
array.append( d );
}
return in;
}
int findCalypStreamInfo( CalypFileInfoVector array, QString filename )
{
for( int i = 0; i < array.size(); i++ )
if( array.at( i ).m_cFilename == filename )
return i;
return -1;
}
/**
* \class VideoInformation
* \brief Shows information about video sub window
*/
class VideoInformation : public QWidget
{
private:
QList<QStaticText> m_cTopLeftTextList;
QFont m_cTopLeftTextFont;
QFont m_cCenterTextFont;
bool m_bBusyWindow;
public:
VideoInformation( QWidget* parent )
: QWidget( parent ), m_bBusyWindow( false )
{
setPalette( Qt::transparent );
setAttribute( Qt::WA_TransparentForMouseEvents );
m_cTopLeftTextFont.setPointSize( 8 );
m_cCenterTextFont.setPointSize( 12 );
}
void setInformationTopLeft( const QStringList& textLines )
{
m_cTopLeftTextList.clear();
for( int i = 0; i < textLines.size(); i++ )
{
m_cTopLeftTextList.append( QStaticText( textLines.at( i ) ) );
}
}
void setBusyWindow( bool bFlag ) { m_bBusyWindow = bFlag; }
protected:
void paintEvent( QPaintEvent* event )
{
QPainter painter( this );
painter.setFont( m_cTopLeftTextFont );
if( !m_cTopLeftTextList.isEmpty() && size().width() > 300 )
{
QPoint topLeftCorner( 10, 10 );
for( int i = 0; i < m_cTopLeftTextList.size(); i++ )
{
painter.drawStaticText( topLeftCorner, m_cTopLeftTextList.at( i ) );
topLeftCorner += QPoint( 0, 15 );
}
}
if( m_bBusyWindow )
{
painter.setFont( m_cCenterTextFont );
painter.drawText( rect(), Qt::AlignHCenter | Qt::AlignVCenter, QStringLiteral( "Refreshing..." ) );
painter.fillRect( rect(), QBrush( QColor::fromRgb( 255, 255, 255, 50 ), Qt::SolidPattern ) );
}
}
};
VideoSubWindow::VideoSubWindow( enum VideoSubWindowCategories category, QWidget* parent )
: SubWindowAbstract( parent, SubWindowAbstract::VIDEO_SUBWINDOW | category )
, m_bWindowBusy( false )
, m_pCurrStream( NULL )
, m_pcCurrFrame( NULL )
, m_pcCurrentDisplayModule( NULL )
, m_pcReferenceSubWindow( NULL )
, m_bIsPlaying( false )
, m_pcUpdateTimer( NULL )
{
// Create a new scroll area inside the sub-window
m_pcScrollArea = new QScrollArea;
connect( m_pcScrollArea->horizontalScrollBar(), SIGNAL( actionTriggered( int ) ), this,
SLOT( updateScrollValues() ) );
connect( m_pcScrollArea->verticalScrollBar(), SIGNAL( actionTriggered( int ) ), this,
SLOT( updateScrollValues() ) );
// Create a new interface to show images
m_cViewArea = new ViewArea;
connect( m_cViewArea, SIGNAL( zoomFactorChanged_byWheel( double, QPoint ) ), this,
SLOT( adjustScrollBarByScale( double, QPoint ) ) );
connect( m_cViewArea, SIGNAL( zoomFactorChanged_byWheel( double, QPoint ) ), this,
SIGNAL( zoomFactorChanged( double, QPoint ) ) );
connect( m_cViewArea, SIGNAL( scrollBarMoved( QPoint ) ), this, SLOT( adjustScrollBarByOffset( QPoint ) ) );
//connect( m_cViewArea, SIGNAL( scrollBarMoved( QPoint ) ), this, SIGNAL( scrollBarMoved( QPoint ) ) );
connect( m_cViewArea, SIGNAL( selectionChanged( QRect ) ), this, SLOT( updateSelectedArea( QRect ) ) );
connect( m_cViewArea, SIGNAL( positionChanged( const QPoint& ) ), this,
SLOT( updatePixelValueStatusBar( const QPoint& ) ) );
m_pcScrollArea->setHorizontalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
m_pcScrollArea->setVerticalScrollBarPolicy( Qt::ScrollBarAlwaysOff );
// Define the cViewArea as the widget inside the scroll area
m_pcScrollArea->setWidget( m_cViewArea );
m_pcScrollArea->setWidgetResizable( true );
setWidget( m_pcScrollArea );
m_apcCurrentModule.clear();
m_pcUpdateTimer = new QTimer();
m_pcUpdateTimer->setInterval( 800 );
connect( m_pcUpdateTimer, SIGNAL( timeout() ), this, SLOT( updateWindowOnTimeout() ) );
//! Add video information
m_pcVideoInfo = new VideoInformation( this );
}
VideoSubWindow::~VideoSubWindow()
{
m_pcCurrFrame = NULL;
disableModule();
delete m_cViewArea;
delete m_pcUpdateTimer;
if( m_pCurrStream )
delete m_pCurrStream;
}
/**
* Events handlers
*/
void VideoSubWindow::closeEvent( QCloseEvent* event )
{
stop();
SubWindowAbstract::closeEvent( event );
}
void VideoSubWindow::keyPressEvent( QKeyEvent* event )
{
if( m_pcCurrentDisplayModule )
{
if( m_pcCurrentDisplayModule->getModuleRequirements() & CLP_MODULE_USES_KEYS )
{
bool bRet = false;
switch( event->key() )
{
case Qt::Key_A:
bRet = m_pcCurrentDisplayModule->getModule()->keyPressed( MODULE_KEY_LEFT );
break;
case Qt::Key_D:
bRet = m_pcCurrentDisplayModule->getModule()->keyPressed( MODULE_KEY_RIGHT );
break;
case Qt::Key_W:
bRet = m_pcCurrentDisplayModule->getModule()->keyPressed( MODULE_KEY_UP );
break;
case Qt::Key_S:
bRet = m_pcCurrentDisplayModule->getModule()->keyPressed( MODULE_KEY_DOWN );
break;
}
if( bRet )
{
refreshFrame();
updateVideoWindowInfo();
return;
}
}
}
QWidget::keyPressEvent( event );
}
void VideoSubWindow::resizeEvent( QResizeEvent* event )
{
m_pcVideoInfo->resize( event->size() );
}
/**
* Size related handlers
*/
QSize VideoSubWindow::sizeHint() const
{
QSize maxSize;
QWidget* p = parentWidget();
if( p )
{
maxSize = p->size();
}
else
{
maxSize = QApplication::desktop()->availableGeometry().size();
}
return sizeHint( maxSize );
}
QSize VideoSubWindow::sizeHint( const QSize& maxSize ) const
{
QSize isize;
if( m_pcCurrFrame )
isize = QSize( m_pcCurrFrame->getWidth() + 50, m_pcCurrFrame->getHeight() + 50 );
else if( m_pCurrStream )
isize = QSize( m_pCurrStream->getWidth() + 50, m_pCurrStream->getHeight() + 50 );
// If the VideoSubWindow needs more space that the avaiable, we'll give
// to the subwindow a reasonable size preserving the image aspect ratio.
if( !( isize.width() < maxSize.width() && isize.height() < maxSize.height() ) )
{
isize.scale( maxSize, Qt::KeepAspectRatio );
}
return isize;
}
void VideoSubWindow::updateWindowOnTimeout()
{
m_pcVideoInfo->update();
}
void VideoSubWindow::loadAll()
{
QApplication::setOverrideCursor( Qt::WaitCursor );
m_pCurrStream->loadAll();
refreshFrame();
QApplication::restoreOverrideCursor();
}
void VideoSubWindow::refreshSubWindow()
{
if( getCategory() & SubWindowAbstract::VIDEO_STREAM_SUBWINDOW )
{
if( !m_pCurrStream->reload() )
{
close();
return;
}
// seekAbsoluteEvent( currFrameNum );
}
updateVideoWindowInfo();
refreshFrame();
}
bool VideoSubWindow::loadFile( QString cFilename, bool bForceDialog )
{
ConfigureFormatDialog formatDialog( this );
unsigned int Width = 0, Height = 0, BitsPel = 8, FrameRate = 30;
int Endianness = CLP_BIG_ENDIAN;
int InputFormat = CLP_YUV420P;
if( m_pCurrStream )
m_pCurrStream->getFormat( Width, Height, InputFormat, BitsPel, Endianness, FrameRate );
if( !m_pCurrStream )
{
m_pCurrStream = new CalypStream;
}
bool bConfig = guessFormat( cFilename, Width, Height, InputFormat, BitsPel, Endianness, FrameRate ) || bForceDialog;
bool bRet = false;
for( int iPass = 0; iPass < 2 && !bRet; iPass++ )
{
if( iPass || bConfig )
{
if( formatDialog.runConfigureFormatDialog( QFileInfo( cFilename ).fileName(), Width, Height, InputFormat, BitsPel,
Endianness, FrameRate ) == QDialog::Rejected )
{
return false;
}
}
try
{
bRet = m_pCurrStream->open( cFilename.toStdString(), Width, Height, InputFormat, BitsPel, Endianness, FrameRate, true );
}
catch( CalypFailure& e )
{
if( iPass == 1 )
throw( e );
}
}
m_sStreamInfo.m_cFilename = cFilename;
m_sStreamInfo.m_uiWidth = Width;
m_sStreamInfo.m_uiHeight = Height;
m_sStreamInfo.m_iPelFormat = InputFormat;
m_sStreamInfo.m_uiBitsPelPixel = BitsPel;
m_sStreamInfo.m_iEndianness = Endianness;
m_sStreamInfo.m_uiFrameRate = FrameRate;
m_sStreamInfo.m_uiFileSize = QFileInfo( cFilename ).size();
QApplication::restoreOverrideCursor();
refreshFrame();
m_cFilename = cFilename;
updateVideoWindowInfo();
setWindowName( QFileInfo( m_cFilename ).fileName() );
return true;
}
bool VideoSubWindow::loadFile( CalypFileInfo* streamInfo )
{
if( !m_pCurrStream )
{
m_pCurrStream = new CalypStream;
}
if( !m_pCurrStream->open( streamInfo->m_cFilename.toStdString(), streamInfo->m_uiWidth, streamInfo->m_uiHeight,
streamInfo->m_iPelFormat, streamInfo->m_uiBitsPelPixel, streamInfo->m_iEndianness,
streamInfo->m_uiFrameRate, true ) )
{
return false;
}
m_sStreamInfo = *streamInfo;
QApplication::restoreOverrideCursor();
refreshFrame();
m_cFilename = streamInfo->m_cFilename;
updateVideoWindowInfo();
setWindowName( QFileInfo( m_cFilename ).fileName() );
return true;
}
void VideoSubWindow::updateVideoWindowInfo()
{
m_cStreamInformation = "";
if( m_pcCurrentDisplayModule )
{
m_cStreamInformation = "Module";
QList<VideoSubWindow*> arraySubWindows = m_pcCurrentDisplayModule->getSubWindowList();
QStringList windowInfoList;
if( arraySubWindows.size() > 0 )
{
for( int i = 0; i < arraySubWindows.size(); i++ )
{
if( arraySubWindows.at( i )->getWindowName() != getWindowName() )
{
windowInfoList.append( QString( "Input %1 - " + arraySubWindows.at( i )->getWindowName() ).arg( i + 1 ) );
}
}
}
if( m_pcCurrentDisplayModule->getModuleRequirements() & CLP_MODULES_HAS_INFO )
{
windowInfoList.append( QString::fromStdString( m_pcCurrentDisplayModule->moduleInfo() ) );
}
// qDebug( ) << sourceWindowList;
if( windowInfoList.size() > 0 )
{
m_pcVideoInfo->setInformationTopLeft( windowInfoList );
}
}
else if( m_pCurrStream )
{
QString m_cFormatName = QString::fromStdString( m_pCurrStream->getFormatName() );
QString m_cCodedName = QString::fromStdString( m_pCurrStream->getCodecName() );
m_cStreamInformation = m_cFormatName + " | " + m_cCodedName;
}
//#if 0
if( m_pcCurrFrame )
{
QString m_cPelFmtName = QString::fromStdString( m_pcCurrFrame->getPelFmtName() );
if( m_pCurrStream )
if( !m_pCurrStream->isNative() )
m_cPelFmtName += "*";
m_cStreamInformation += " | " + m_cPelFmtName;
}
//#endif
if( m_cStreamInformation.isEmpty() )
{
m_cStreamInformation = " ";
}
}
bool VideoSubWindow::guessFormat( QString filename, unsigned int& rWidth, unsigned int& rHeight, int& rInputFormat, unsigned int& rBitsPerPixel,
int& rEndianness, unsigned int& rFrameRate )
{
std::vector<CalypStandardResolution> stdResList = CalypStream::stdResolutionSizes();
bool bGuessed = true;
bool bGuessedByFilesize = false;
QString FilenameShort = QFileInfo( filename ).fileName();
QString fileExtension = QFileInfo( filename ).suffix();
if( filename.startsWith( "/dev/" ) )
{
return false;
}
if( !fileExtension.compare( "yuv", Qt::CaseInsensitive ) || !fileExtension.compare( "rgb", Qt::CaseInsensitive ) ||
!fileExtension.compare( "gray", Qt::CaseInsensitive ) )
{
bGuessed = false;
// Guess pixel format
QVector<ClpString> formats_list = QVector<ClpString>::fromStdVector( CalypFrame::supportedPixelFormatListNames() );
for( int i = 0; i < formats_list.size(); i++ )
{
if( FilenameShort.contains( formats_list.at( i ).c_str(), Qt::CaseInsensitive ) )
{
rInputFormat = i;
break;
}
}
if( rWidth == 0 || rHeight == 0 )
{
// Guess resolution - match resolution name
int iMatch = -1;
for( unsigned int i = 0; i < stdResList.size(); i++ )
{
if( FilenameShort.contains( QString::fromStdString( stdResList[i].shortName ) ) )
{
iMatch = i;
}
}
if( iMatch >= 0 )
{
rWidth = stdResList[iMatch].uiWidth;
rHeight = stdResList[iMatch].uiHeight;
}
// Guess resolution - match %dx%d
QRegularExpressionMatch resolutionMatch = QRegularExpression( "_\\d*x\\d*" ).match( FilenameShort );
if( resolutionMatch.hasMatch() )
{
QString resolutionString = resolutionMatch.captured( 0 );
if( resolutionString.startsWith( "_" ) || resolutionString.endsWith( "_" ) )
{
resolutionString.remove( "_" );
QStringList resolutionArgs = resolutionString.split( "x" );
if( resolutionArgs.size() == 2 )
{
rWidth = resolutionArgs.at( 0 ).toUInt();
rHeight = resolutionArgs.at( 1 ).toUInt();
}
}
}
}
// Guess resolution by file size
if( rWidth == 0 && rHeight == 0 )
{
FILE* pF = fopen( filename.toStdString().c_str(), "rb" );
if( pF )
{
fseek( pF, 0, SEEK_END );
unsigned long long int uiFileSize = ftell( pF );
fclose( pF );
int count = 0, module, frame_bytes, match;
for( unsigned int i = 0; i < stdResList.size(); i++ )
{
frame_bytes =
CalypFrame::getBytesPerFrame( stdResList[i].uiWidth, stdResList[i].uiHeight, rInputFormat, 8 );
module = uiFileSize % frame_bytes;
if( module == 0 )
{
match = i;
count++;
}
}
if( count == 1 )
{
rWidth = stdResList[match].uiWidth;
rHeight = stdResList[match].uiHeight;
bGuessedByFilesize = true;
}
}
}
// Guess bits per pixel - match %dbpp
QRegularExpressionMatch BppMatch = QRegularExpression( "_\\d*bpp" ).match( FilenameShort );
if( BppMatch.hasMatch() )
{
QString matchString = BppMatch.captured( 0 );
matchString.remove( "_" );
matchString.remove( "bpp" );
rBitsPerPixel = matchString.toUInt();
if( !( rBitsPerPixel > 0 && rBitsPerPixel < 16 ) )
{
rBitsPerPixel = -1;
}
}
// Guess frame rate - match %dbpp
QRegularExpressionMatch FpsMatch = QRegularExpression( "_\\d*fps" ).match( FilenameShort );
if( FpsMatch.hasMatch() )
{
QString matchString = FpsMatch.captured( 0 );
matchString.remove( "_" );
matchString.remove( "fps" );
rFrameRate = matchString.toUInt();
if( rFrameRate < 0 )
{
rFrameRate = 30;
}
}
// Guess Endianness
if( FilenameShort.contains( QStringLiteral( "be" ), Qt::CaseInsensitive ) )
{
rEndianness = CLP_BIG_ENDIAN;
}
if( FilenameShort.contains( QStringLiteral( "le" ), Qt::CaseInsensitive ) )
{
rEndianness = CLP_LITTLE_ENDIAN;
}
if( rWidth > 0 && rHeight > 0 && rInputFormat >= 0 )
bGuessed = true && !bGuessedByFilesize;
}
return !bGuessed;
}
void VideoSubWindow::updateSelectedArea( QRect area )
{
m_cSelectedArea = area;
}
/**
* Functions to enable a module in the
* current SubWindow
*/
void VideoSubWindow::enableModule( CalypAppModuleIf* pcModule )
{
if( m_pcCurrentDisplayModule )
{
disableModule( m_pcCurrentDisplayModule );
}
m_pcCurrentDisplayModule = pcModule;
updateVideoWindowInfo();
}
void VideoSubWindow::disableModule( CalypAppModuleIf* pcModule )
{
bool bRefresh = false;
if( pcModule )
{
int modIdx = m_apcCurrentModule.indexOf( pcModule );
if( modIdx != -1 )
{
m_apcCurrentModule.removeAt( modIdx );
ModulesHandle::destroyModuleIf( pcModule );
bRefresh |= true;
}
if( pcModule == m_pcCurrentDisplayModule )
{
pcModule = m_pcCurrentDisplayModule;
m_pcCurrentDisplayModule = 0;
ModulesHandle::destroyModuleIf( pcModule );
setWindowName( QFileInfo( m_cFilename ).fileName() );
bRefresh |= true;
}
}
else
{
QList<CalypAppModuleIf*> apcCurrentModule = m_apcCurrentModule;
for( int i = 0; i < apcCurrentModule.size(); i++ )
{
m_apcCurrentModule.removeOne( apcCurrentModule.at( i ) );
ModulesHandle::destroyModuleIf( apcCurrentModule.at( i ) );
bRefresh |= true;
}
assert( m_apcCurrentModule.size() == 0 );
if( m_pcCurrentDisplayModule )
{
pcModule = m_pcCurrentDisplayModule;
m_pcCurrentDisplayModule = 0;
ModulesHandle::destroyModuleIf( pcModule );
setWindowName( QFileInfo( m_cFilename ).fileName() );
bRefresh |= true;
}
}
if( bRefresh )
{
refreshFrame();
updateVideoWindowInfo();
}
}
void VideoSubWindow::associateModule( CalypAppModuleIf* pcModule )
{
m_apcCurrentModule.append( pcModule );
}
bool VideoSubWindow::hasRunningModule()
{
bool bRet = false;
if( m_pcCurrentDisplayModule )
{
bRet |= m_pcCurrentDisplayModule->isRunning();
}
for( int i = 0; i < m_apcCurrentModule.size() && !bRet; i++ )
{
bRet |= m_apcCurrentModule.at( i )->isRunning();
}
return bRet;
}
void VideoSubWindow::setFillWindow( bool bFlag )
{
m_pcVideoInfo->setBusyWindow( bFlag );
}
void VideoSubWindow::setCurrFrame( CalypFrame* pcCurrFrame )
{
m_pcCurrFrame = pcCurrFrame;
m_cViewArea->setImage( m_pcCurrFrame );
}
void VideoSubWindow::refreshFrameOperation()
{
bool bSetFrame = false;
if( m_pCurrStream )
{
m_pcCurrFrame = m_pCurrStream->getCurrFrame();
bSetFrame = m_pcCurrFrame ? true : false;
}
if( m_pcCurrentDisplayModule )
{
m_bWindowBusy = true;
m_pcCurrentDisplayModule->apply( m_bIsPlaying, !m_bIsPlaying && m_apcCurrentModule.size() );
bSetFrame = false;
}
if( bSetFrame )
{
m_cViewArea->setImage( m_pcCurrFrame );
}
for( int i = 0; i < m_apcCurrentModule.size(); i++ )
{
m_apcCurrentModule.at( i )->update();
}
}
void VideoSubWindow::refreshFrame( bool bThreaded )
{
#ifndef QT_NO_CONCURRENT
m_cRefreshResult.waitForFinished();
if( bThreaded )
{
m_cRefreshResult = QtConcurrent::run( this, &VideoSubWindow::refreshFrameOperation );
}
else
#endif
{
refreshFrameOperation();
}
}
bool VideoSubWindow::goToNextFrame( bool bThreaded )
{
#ifndef QT_NO_CONCURRENT
m_cRefreshResult.waitForFinished();
m_cReadResult.waitForFinished();
#endif
bool bEndOfSeq = m_pCurrStream->setNextFrame();
if( !bEndOfSeq )
{
#ifndef QT_NO_CONCURRENT
m_cRefreshResult.waitForFinished();
if( bThreaded )
{
refreshFrame();
m_cReadResult = QtConcurrent::run( m_pCurrStream, &CalypStream::readNextFrameFillRGBBuffer );
}
else
#endif
{
refreshFrame();
m_pCurrStream->readNextFrameFillRGBBuffer();
}
}
return bEndOfSeq;
}
bool VideoSubWindow::save( QString filename )
{
bool iRet = false;
QApplication::setOverrideCursor( Qt::WaitCursor );
CalypFrame* saveFrame = m_pcCurrFrame;
if( m_cSelectedArea.isValid() )
{
saveFrame = new CalypFrame( m_pcCurrFrame, m_cSelectedArea.x(), m_cSelectedArea.y(), m_cSelectedArea.width(),
m_cSelectedArea.height() );
}
if( !saveFrame )
{
return false;
}
iRet = CalypStream::saveFrame( filename.toStdString(), saveFrame );
QApplication::restoreOverrideCursor();
return iRet;
}
bool VideoSubWindow::saveStream( QString filename )
{
bool iRet = false;
QApplication::setOverrideCursor( Qt::WaitCursor );
// TODO: implement this
QApplication::restoreOverrideCursor();
return iRet;
}
bool VideoSubWindow::play()
{
if( m_pCurrStream && m_pCurrStream->getFrameNum() > 1 )
{
m_bIsPlaying = true;
}
else
{
m_bIsPlaying = false;
}
return m_bIsPlaying;
}
bool VideoSubWindow::playEvent()
{
bool bEndOfSeq = false;
if( m_pCurrStream && m_bIsPlaying )
{
bEndOfSeq = goToNextFrame( true );
}
return bEndOfSeq;
}
void VideoSubWindow::pause()
{
m_bIsPlaying = false;
refreshFrame();
}
void VideoSubWindow::seekAbsoluteEvent( unsigned int new_frame_num )
{
if( m_pCurrStream )
if( m_pCurrStream->seekInput( new_frame_num ) )
refreshFrame();
}
void VideoSubWindow::seekRelativeEvent( bool bIsFoward )
{
bool bRefresh = false;
if( m_pCurrStream )
{
if( bIsFoward )
{
goToNextFrame( true );
}
else
{
bRefresh = m_pCurrStream->seekInputRelative( bIsFoward );
}
}
if( bRefresh )
{
refreshFrame();
}
}
void VideoSubWindow::stop()
{
#ifndef QT_NO_CONCURRENT
m_cRefreshResult.waitForFinished();
m_cReadResult.waitForFinished();
#endif
m_bIsPlaying = false;
seekAbsoluteEvent( 0 );
return;
}
QSize VideoSubWindow::getScrollSize()
{
return QSize( m_pcScrollArea->viewport()->size().width() - 5, m_pcScrollArea->viewport()->size().height() - 5 );
}
void VideoSubWindow::adjustScrollBarToRatio( const double& horRatio, const double& verRatio )
{
QScrollBar* scrollBarH = m_pcScrollArea->horizontalScrollBar();
QScrollBar* scrollBarV = m_pcScrollArea->verticalScrollBar();
scrollBarH->setValue( scrollBarH->maximum() * horRatio );
scrollBarV->setValue( scrollBarV->maximum() * verRatio );
updateScrollValues();
}
void VideoSubWindow::adjustScrollBarByOffset( QPoint Offset )
{
QPoint cLastScroll = m_cCurrScroll;
QScrollBar* scrollBarH = m_pcScrollArea->horizontalScrollBar();
QScrollBar* scrollBarV = m_pcScrollArea->verticalScrollBar();
int valueX = int( cLastScroll.x() + Offset.x() );
int valueY = int( cLastScroll.y() + Offset.y() );
scrollBarH->setValue( valueX );
scrollBarV->setValue( valueY );
updateScrollValues();
scrollBarMoved( m_dHorScroll, m_dVerScroll );
}
// This function was developed with help of the schematics presented in
// http://stackoverflow.com/questions/13155382/jscrollpane-zoom-relative-to-mouse-position
void VideoSubWindow::adjustScrollBarByScale( double scale, QPoint center )
{
QPoint cLastScroll = m_cCurrScroll;
QScrollBar* scrollBarH = m_pcScrollArea->horizontalScrollBar();
QScrollBar* scrollBarV = m_pcScrollArea->verticalScrollBar();
if( center.isNull() )
{
m_cCurrScroll.setX( int( scale * cLastScroll.x() + ( ( scale - 1 ) * scrollBarH->pageStep() / 2 ) ) );
m_cCurrScroll.setY( int( scale * cLastScroll.y() + ( ( scale - 1 ) * scrollBarV->pageStep() / 2 ) ) );
}
else
{
int value;
int x = center.x() - cLastScroll.x();
value = int( scale * cLastScroll.x() + ( ( scale - 1 ) * x ) );
m_cCurrScroll.setX( value );
int y = center.y() - cLastScroll.y();
value = int( scale * cLastScroll.y() + ( ( scale - 1 ) * y ) );
m_cCurrScroll.setY( value );
}
// Update window scroll
scrollBarH->setValue( m_cCurrScroll.x() );
scrollBarV->setValue( m_cCurrScroll.y() );
updateScrollValues();
scrollBarMoved( m_dHorScroll, m_dVerScroll );
}
void VideoSubWindow::updateScrollValues()
{
double xPos = m_pcScrollArea->horizontalScrollBar()->value();
double yPos = m_pcScrollArea->verticalScrollBar()->value();
m_cCurrScroll.setX( xPos );
m_cCurrScroll.setY( yPos );
m_dHorScroll = m_dVerScroll = 0;
if( xPos )
m_dHorScroll = xPos / double( m_pcScrollArea->horizontalScrollBar()->maximum() );
if( yPos )
m_dVerScroll = yPos / double( m_pcScrollArea->verticalScrollBar()->maximum() );
}
//void VideoSubWindow::setCurScrollValues()
//{
// QScrollBar* scrollBar = m_pcScrollArea->horizontalScrollBar();
// scrollBar->setValue( m_cCurrScroll.x() );
// scrollBar = m_pcScrollArea->verticalScrollBar();
// scrollBar->setValue( m_cCurrScroll.y() );
//}
void VideoSubWindow::normalSize()
{
double factor = 1.0;
double curFactor = getScaleFactor();
if( factor != curFactor )
{
double usedScale;
usedScale = m_cViewArea->scaleZoomFactor( factor / curFactor, QPoint(), QSize() );
adjustScrollBarByScale( usedScale, QPoint() );
}
}
void VideoSubWindow::zoomToFit()
{
// Scale to a smaller size that the real to a nicer look
scaleView( getScrollSize() );
}
void VideoSubWindow::zoomToFactor( double factor, QPoint center )
{
double curFactor;
curFactor = getScaleFactor();
if( factor != curFactor )
{
double usedScale;
usedScale = m_cViewArea->scaleZoomFactor( factor / curFactor, center, QSize() );
adjustScrollBarByScale( usedScale, center );
}
}
void VideoSubWindow::scaleView( double scale, QPoint center )
{
Q_ASSERT( !m_cViewArea->image().isNull() );
if( scale != 1.0 )
{
double usedScale;
usedScale = m_cViewArea->scaleZoomFactor( scale, center, getScrollSize() );
adjustScrollBarByScale( usedScale, center );
}
}
void VideoSubWindow::scaleView( const QSize& size, QPoint center )
{
QSize imgViewSize;
if( m_pcCurrFrame )
imgViewSize = QSize( m_pcCurrFrame->getWidth(), m_pcCurrFrame->getHeight() );
else
imgViewSize = QSize( m_pCurrStream->getWidth(), m_pCurrStream->getHeight() );
QSize newSize = imgViewSize;
newSize.scale( size, Qt::KeepAspectRatio );
// Calc the zoom factor
double wfactor = 1;
double hfactor = 1;
double factor;
wfactor = (double)newSize.width() / imgViewSize.width();
hfactor = (double)newSize.height() / imgViewSize.height();
if( wfactor < hfactor )
factor = wfactor;
else
factor = hfactor;
double curFactor = getScaleFactor();
if( factor != curFactor )
{
double usedScale;
usedScale = m_cViewArea->scaleZoomFactor( factor / curFactor, center, getScrollSize() );
adjustScrollBarByScale( usedScale, center );
}
}
void VideoSubWindow::updatePixelValueStatusBar( const QPoint& pos )
{
if( m_pcCurrFrame )
{
int iWidth, iHeight;
int posX = pos.x();
int posY = pos.y();
QString strStatus;
iWidth = m_pcCurrFrame->getWidth();
iHeight = m_pcCurrFrame->getHeight();
if( ( posX < iWidth ) && ( posX >= 0 ) && ( posY < iHeight ) && ( posY >= 0 ) )
{
strStatus = QString( "(%1,%2) " ).arg( posX ).arg( posY );
int colorSpace = m_pcCurrFrame->getColorSpace();
CalypPixel pixelValue = m_pcCurrFrame->getPixel( pos.x(), pos.y() );
switch( colorSpace )
{
case CLP_COLOR_GRAY:
strStatus.append( QString( "Y: %1" ).arg( pixelValue[0] ) );
break;
case CLP_COLOR_YUV:
strStatus.append( QString( "Y: %1 U: %2 V: %3" )
.arg( pixelValue[0] )
.arg( pixelValue[1] )
.arg( pixelValue[2] ) );
break;
case CLP_COLOR_RGB:
strStatus.append( QString( "R: %1 G: %2 B: %3" )
.arg( pixelValue[0] )
.arg( pixelValue[1] )
.arg( pixelValue[2] ) );
break;
case CLP_COLOR_RGBA:
strStatus.append( QString( "R: %1 G: %2 B: %3 A: %4" )
.arg( pixelValue[0] )
.arg( pixelValue[1] )
.arg( pixelValue[2] )
.arg( pixelValue[3] ) );
break;
}
emit updateStatusBar( strStatus );
}
}
}
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