Finish new api for pixels and change project tree
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/* This file is a part of plaYUVer project
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* Copyright (C) 2014 by Luis Lucas (luisfrlucas@gmail.com)
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* Joao Carreira (jfmcarreira@gmail.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* \file SubWindowHandle.cpp
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* \brief Sub windows handling
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*/
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#include "ConfigureFormatDialog.h"
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#include "SubWindowHandle.h"
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#include "ViewArea.h"
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namespace plaYUVer
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{
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SubWindowHandle::SubWindowHandle( QWidget * parent, Bool isModule ) :
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QMdiSubWindow( parent ),
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m_pCurrStream( NULL ),
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m_pcCurrFrame( NULL ),
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m_pcCurrentModule( NULL ),
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m_pcReferenceSubWindow( NULL ),
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m_bIsPlaying( false ),
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m_bIsModule( isModule )
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{
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setParent( parent );
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setAttribute( Qt::WA_DeleteOnClose );
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setBackgroundRole( QPalette::Light );
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setVisible( false );
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// Create a new scroll area inside the sub-window
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m_cScrollArea = new QScrollArea( this );
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setWidget( m_cScrollArea );
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// Create a new interface to show images
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m_cViewArea = new ViewArea( m_cScrollArea );
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connect( m_cViewArea, SIGNAL( zoomFactorChanged( double , QPoint) ), this, SLOT( adjustScrollBarByZoom(double, QPoint) ) );
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connect( m_cViewArea, SIGNAL( moveScroll( QPoint ) ), this, SLOT( adjustScrollBarByOffset(QPoint) ) );
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connect( m_cViewArea, SIGNAL( selectionChanged( QRect ) ), this, SLOT( updateSelectedArea( QRect ) ) );
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connect( m_cScrollArea->horizontalScrollBar(), SIGNAL( actionTriggered( int ) ), this, SLOT( updateLastScrollValue() ) );
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connect( m_cScrollArea->verticalScrollBar(), SIGNAL( actionTriggered( int ) ), this, SLOT( updateLastScrollValue() ) );
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// Define the cViewArea as the widget inside the scroll area
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m_cScrollArea->setWidget( m_cViewArea );
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m_cScrollArea->setWidgetResizable( true );
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m_cWindowName = QString( " " );
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m_cLastScroll = QPoint();
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}
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SubWindowHandle::~SubWindowHandle()
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{
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disableModule();
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delete m_cViewArea;
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delete m_cScrollArea;
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if( m_pCurrStream )
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delete m_pCurrStream;
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}
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Void SubWindowHandle::reloadFile()
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{
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Int currFrameNum = m_pCurrStream->getCurrFrameNum();
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loadFile( m_cFilename, false );
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seekAbsoluteEvent( currFrameNum );
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}
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Bool SubWindowHandle::loadFile( QString cFilename, Bool bForceDialog )
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{
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UInt Width = 0, Height = 0, FrameRate = 30;
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Int InputFormat = -1;
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if( !m_pCurrStream )
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{
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m_pCurrStream = new PlaYUVerStream;
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}
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m_pCurrStream->getFormat( Width, Height, InputFormat, FrameRate );
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if( m_pCurrStream->guessFormat( cFilename, Width, Height, InputFormat, FrameRate ) || bForceDialog )
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{
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ConfigureFormatDialog formatDialog( this );
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if( formatDialog.runConfigureFormatDialog( QFileInfo( cFilename ).fileName(), Width, Height, InputFormat, FrameRate ) == QDialog::Rejected )
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{
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return false;
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}
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}
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QApplication::setOverrideCursor( Qt::WaitCursor );
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QApplication::restoreOverrideCursor();
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if( !m_pCurrStream->open( cFilename, Width, Height, InputFormat, FrameRate ) )
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{
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return false;
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}
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m_cViewArea->setInputStream( m_pCurrStream );
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QApplication::restoreOverrideCursor();
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refreshFrame();
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m_cFilename = cFilename;
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m_cWindowName = m_pCurrStream->getStreamInformationString();
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m_cWindowShortName = QFileInfo( cFilename ).fileName();
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setWindowTitle( m_cWindowName );
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return true;
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}
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Bool SubWindowHandle::loadFile( PlaYUVerStreamInfo* streamInfo )
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{
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if( !m_pCurrStream )
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{
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m_pCurrStream = new PlaYUVerStream;
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}
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if( !m_pCurrStream->open( streamInfo->m_cFilename, streamInfo->m_uiWidth, streamInfo->m_uiHeight, streamInfo->m_iPelFormat,
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streamInfo->m_uiFrameRate ) )
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{
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return false;
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}
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m_cViewArea->setInputStream( m_pCurrStream );
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QApplication::restoreOverrideCursor();
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refreshFrame();
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m_cFilename = streamInfo->m_cFilename;
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m_cWindowName = m_pCurrStream->getStreamInformationString();
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m_cWindowShortName = QFileInfo( streamInfo->m_cFilename ).fileName();
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setWindowTitle( m_cWindowName );
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return true;
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}
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Void SubWindowHandle::updateSelectedArea( QRect area )
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{
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m_cSelectedArea = area;
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}
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/**
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* Functions to enable a module in the
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* current SubWindow
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*/
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Void SubWindowHandle::enableModule( PlaYUVerAppModuleIf* select_module )
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{
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if( m_pcCurrentModule )
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{
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disableModule();
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}
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m_pcCurrentModule = select_module;
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// refreshFrame();
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}
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Void SubWindowHandle::disableModule()
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{
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if( m_pcCurrentModule )
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{
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PlaYUVerAppModuleIf* pcCurrentModule = m_pcCurrentModule;
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m_pcCurrentModule = NULL;
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ModulesHandle::destroyModuleIf( pcCurrentModule );
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refreshFrame();
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}
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}
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Void SubWindowHandle::swapModuleFrames()
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{
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if( m_pcCurrentModule )
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{
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ModulesHandle::swapModulesWindowsIf( m_pcCurrentModule );
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refreshFrame();
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}
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}
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Void SubWindowHandle::applyModuleAllFrames()
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{
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if( m_pcCurrentModule )
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{
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ModulesHandle::applyAllModuleIf( m_pcCurrentModule );
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stop();
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}
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}
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Void SubWindowHandle::setCurrFrame( PlaYUVerFrame* pcCurrFrame )
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{
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m_pcCurrFrame = pcCurrFrame;
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m_cViewArea->setImage( m_pcCurrFrame );
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if( !isVisible() )
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{
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show();
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resize( sizeHint() );
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zoomToFit();
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}
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}
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Void SubWindowHandle::refreshFrame()
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{
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Bool bSetFrame = false;
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if( m_pCurrStream )
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{
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m_pcCurrFrame = m_pCurrStream->getCurrFrame();
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bSetFrame = true;
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if( m_pcCurrentModule )
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{
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bSetFrame = ModulesHandle::applyModuleIf( m_pcCurrentModule, m_bIsPlaying );
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}
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}
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else
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{
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if( m_pcCurrentModule )
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{
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bSetFrame = ModulesHandle::applyModuleIf( m_pcCurrentModule, m_bIsPlaying );
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}
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}
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if( bSetFrame )
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{
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m_cViewArea->setImage( m_pcCurrFrame );
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}
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}
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Bool SubWindowHandle::save( QString filename )
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{
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Bool iRet = false;
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QApplication::setOverrideCursor( Qt::WaitCursor );
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PlaYUVerFrame* saveFrame = m_pcCurrFrame;
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if( m_cSelectedArea.isValid() )
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{
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saveFrame = new PlaYUVerFrame( m_pcCurrFrame, m_cSelectedArea );
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}
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if( !saveFrame )
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{
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return false;
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}
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iRet = PlaYUVerStream::saveFrame( filename, saveFrame );
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QApplication::restoreOverrideCursor();
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return iRet;
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}
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Bool SubWindowHandle::play()
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{
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if( m_pCurrStream && m_pCurrStream->getFrameNum() > 1 )
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{
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m_bIsPlaying = true;
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}
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else
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{
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m_bIsPlaying = false;
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}
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return m_bIsPlaying;
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}
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Int SubWindowHandle::playEvent()
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{
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if( m_pCurrStream && m_bIsPlaying )
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{
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m_pCurrStream->setNextFrame();
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refreshFrame();
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if( m_pCurrStream->checkErrors( PlaYUVerStream::END_OF_SEQ ) )
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{
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return -2;
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}
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m_pCurrStream->readFrame();
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if( m_pCurrStream->checkErrors( PlaYUVerStream::READING ) )
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{
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QMessageBox::warning( this, tr( "plaYUVer" ), tr( "Cannot read %1." ).arg( m_cFilename ) );
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return -3;
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}
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return 0;
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}
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return -4;
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}
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Void SubWindowHandle::pause()
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{
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m_bIsPlaying = false;
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refreshFrame();
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}
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Void SubWindowHandle::seekAbsoluteEvent( UInt new_frame_num )
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{
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if( m_pCurrStream )
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{
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if( m_pCurrStream->seekInput( new_frame_num ) )
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{
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refreshFrame();
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}
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}
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}
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Void SubWindowHandle::seekRelativeEvent( Bool bIsFoward )
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{
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if( m_pCurrStream )
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{
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if( m_pCurrStream->seekInput( m_pCurrStream->getCurrFrameNum() + ( bIsFoward ? 1 : -1 ) ) )
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{
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refreshFrame();
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}
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}
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}
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Void SubWindowHandle::stop()
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{
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m_bIsPlaying = false;
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seekAbsoluteEvent( 0 );
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return;
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}
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Void SubWindowHandle::normalSize()
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{
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Double scaleFactor = 1.0;
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m_cViewArea->setZoomFactor( scaleFactor );
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updateLastScrollValue();
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}
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Void SubWindowHandle::zoomToFit()
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{
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// Scale to a smaller size that the real to a nicer look
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QSize niceFit( m_cScrollArea->viewport()->size().width() - 5, m_cScrollArea->viewport()->size().height() - 5 );
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scaleView( niceFit );
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}
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Void SubWindowHandle::scaleView( Double scale )
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{
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Q_ASSERT( m_cViewArea->image() );
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m_cViewArea->setZoomFactor( scale );
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updateLastScrollValue();
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}
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Void SubWindowHandle::scaleView( Int width, Int height )
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{
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scaleView( QSize( width, height ) );
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}
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Void SubWindowHandle::scaleView( const QSize & size )
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{
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QSize imgViewSize;
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if( m_pcCurrFrame )
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imgViewSize = QSize( m_pcCurrFrame->getWidth(), m_pcCurrFrame->getHeight() );
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else
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imgViewSize = QSize( m_pCurrStream->getWidth(), m_pCurrStream->getHeight() );
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QSize newSize = imgViewSize;
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newSize.scale( size, Qt::KeepAspectRatio );
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// Calc the zoom factor
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Double wfactor = 1;
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Double hfactor = 1;
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wfactor = ( Double )newSize.width() / imgViewSize.width();
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hfactor = ( Double )newSize.height() / imgViewSize.height();
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if( wfactor < hfactor )
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scaleView( wfactor );
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else
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scaleView( hfactor );
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}
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Void SubWindowHandle::scaleViewByRatio( Double ratio )
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{
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Q_ASSERT( m_cViewArea->image() );
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m_cViewArea->zoomChangeEvent( ratio, QPoint() );
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}
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void SubWindowHandle::adjustScrollBarByOffset( QPoint Offset )
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{
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QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
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scrollBar->setValue( int( scrollBar->value() + Offset.x() ) );
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m_cLastScroll.setX( scrollBar->value() );
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scrollBar = m_cScrollArea->verticalScrollBar();
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scrollBar->setValue( int( scrollBar->value() + Offset.y() ) );
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m_cLastScroll.setY( scrollBar->value() );
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updateLastScrollValue();
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}
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// This function was developed with help of the schematics presented in
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// http://stackoverflow.com/questions/13155382/jscrollpane-zoom-relative-to-mouse-position
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void SubWindowHandle::adjustScrollBarByZoom( double factor, QPoint center )
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{
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QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
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if( center.isNull() )
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{
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scrollBar->setValue( int( factor * scrollBar->value() + ( ( factor - 1 ) * scrollBar->pageStep() / 2 ) ) );
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}
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else
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{
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Int x = center.x() - m_cLastScroll.x();
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Int value = int( factor * m_cLastScroll.x() + ( ( factor - 1 ) * x ) );
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if( value > scrollBar->maximum() )
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value = scrollBar->maximum();
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if( value < scrollBar->minimum() )
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value = scrollBar->minimum();
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scrollBar->setValue( value );
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}
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scrollBar = m_cScrollArea->verticalScrollBar();
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if( center.isNull() )
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{
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scrollBar->setValue( int( factor * scrollBar->value() + ( ( factor - 1 ) * scrollBar->pageStep() / 2 ) ) );
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}
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else
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{
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Int y = center.y() - m_cLastScroll.y();
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Int value = int( factor * m_cLastScroll.y() + ( ( factor - 1 ) * y ) );
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if( value > scrollBar->maximum() )
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value = scrollBar->maximum();
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if( value < scrollBar->minimum() )
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value = scrollBar->minimum();
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scrollBar->setValue( value );
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}
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updateLastScrollValue();
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}
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void SubWindowHandle::updateLastScrollValue()
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{
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QScrollBar *scrollBar = m_cScrollArea->horizontalScrollBar();
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m_cLastScroll.setX( scrollBar->value() );
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scrollBar = m_cScrollArea->verticalScrollBar();
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m_cLastScroll.setY( scrollBar->value() );
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}
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QSize SubWindowHandle::sizeHint() const
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{
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QSize maxSize; // The size of the parent (viewport widget
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// of the QMdiArea).
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QWidget *p = parentWidget();
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if( p )
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{
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maxSize = p->size();
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}
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QSize isize;
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if( m_pcCurrFrame )
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isize = QSize( m_pcCurrFrame->getWidth() + 50, m_pcCurrFrame->getHeight() + 50 );
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else if( m_pCurrStream )
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isize = QSize( m_pCurrStream->getWidth() + 50, m_pCurrStream->getHeight() + 50 );
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// If the SubWindowHandle needs more space that the avaiable, we'll give
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// to the subwindow a reasonable size preserving the image aspect ratio.
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if( isize.width() < maxSize.width() && isize.height() < maxSize.height() )
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{
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return isize;
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}
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else
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{
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isize.scale( maxSize, Qt::KeepAspectRatio );
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maxSize = isize;
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}
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return maxSize;
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}
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Bool SubWindowHandle::mayClose()
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{
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return true;
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}
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void SubWindowHandle::closeEvent( QCloseEvent *event )
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{
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Bool bAccept = mayClose();
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bAccept = m_bIsPlaying ? false : bAccept;
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if( bAccept )
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{
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event->accept();
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}
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else
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{
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event->ignore();
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}
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}
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} // NAMESPACE
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Reference in new issue
Block a user