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/*
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**************************************************************************
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description
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--------------------
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copyright : (C) 2001-2003 by Andreas Zehender
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email : zehender@kde.org
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**************************************************************************
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**************************************************************************
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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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**************************************************************************/
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#include "pmpovrayrenderwidget.h"
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#include "pmdefaults.h"
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#include "pmdebug.h"
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#include "pmdragwidget.h"
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#include <kprocess.h>
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#include <kmessagebox.h>
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#include <klocale.h>
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#include <kconfig.h>
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#include <kurl.h>
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#include <ktempfile.h>
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#include <tqcolor.h>
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#include <tqpainter.h>
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#include <tqtextstream.h>
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#include <tqdragobject.h>
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#ifdef KDE_NO_COMPAT
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#undef KDE_NO_COMPAT
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#endif
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#include <kapplication.h>
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TQString PMPovrayRenderWidget::s_povrayCommand = c_defaultPovrayCommand;
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TQStringList PMPovrayRenderWidget::s_libraryPaths;
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PMPovrayRenderWidget::PMPovrayRenderWidget( TQWidget* parent, const char* name )
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: PMDragWidget( parent, name )
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{
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m_pProcess = 0;
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m_bSuspended = false;
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m_rcvHeader = false;
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m_skipBytes = 0;
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m_bPixmapUpToDate = false;
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m_pTempFile = 0;
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setBackgroundColor( TQColor( 0, 0, 0 ) );
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}
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PMPovrayRenderWidget::~PMPovrayRenderWidget( )
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{
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cleanup( );
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}
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bool PMPovrayRenderWidget::render( const TQByteArray& scene,
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const PMRenderMode& m,
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const KURL& documentURL )
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{
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cleanup( );
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m_povrayOutput = "";
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m_renderMode = m;
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if( !scene.data( ) )
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{
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KMessageBox::sorry( this, i18n( "Can't render an empty scene.\n" ) );
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return false;
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}
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// output to tmp file
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m_pTempFile = new KTempFile( TQString(), ".pov" );
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TQDataStream* dstr = m_pTempFile->dataStream( );
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if( ( m_pTempFile->status( ) != 0 ) || !dstr )
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{
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KMessageBox::sorry( this, i18n( "Couldn't write the scene to a temp file.\n" ) );
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return false;
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}
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dstr->writeRawBytes( scene.data( ), scene.size( ) );
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m_pTempFile->close( );
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m_pProcess = new TDEProcess( );
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connect( m_pProcess, TQT_SIGNAL( receivedStdout( TDEProcess*, char*, int ) ),
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TQT_SLOT( slotPovrayImage( TDEProcess*, char*, int ) ) );
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connect( m_pProcess, TQT_SIGNAL( receivedStderr( TDEProcess*, char*, int ) ),
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TQT_SLOT( slotPovrayMessage( TDEProcess*, char*, int ) ) );
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connect( m_pProcess, TQT_SIGNAL( processExited( TDEProcess* ) ),
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TQT_SLOT( slotRenderingFinished( TDEProcess* ) ) );
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*m_pProcess << s_povrayCommand;
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TQStringList::ConstIterator it;
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TQStringList args = m_renderMode.commandLineSwitches( );
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for( it = args.begin( ); it != args.end( ); ++it )
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*m_pProcess << *it;
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for( it = s_libraryPaths.begin( ); it != s_libraryPaths.end( ); ++it )
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{
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TQString path = *it;
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if( path != TQString( "/" ) )
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if( path.right( 1 ) == TQString( "/" ) )
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path.truncate( path.length( ) - 1 );
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*m_pProcess << ( TQString( "+L" ) + path );
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}
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*m_pProcess << TQString( "+I" ) + m_pTempFile->name( ) << "+O-" << "+FT"
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<< "+K0.0" << "+KFI1" << "+KFF1" << "+KI0.0" << "+KF0.0"
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<< "+SF1" << "+EF1" << "-KC" << "-D";
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#if ( ( TDE_VERSION_MAJOR == 2 ) && ( TDE_VERSION_MINOR >= 9 ) ) || ( TDE_VERSION_MAJOR == 3 )
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if( !documentURL.isEmpty( ) && documentURL.isLocalFile( ) )
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m_pProcess->setWorkingDirectory( documentURL.directory( ) );
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#endif
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m_rcvHeader = true;
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m_rcvHeaderBytes = 0;
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m_rcvPixels = 0;
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m_progress = 0;
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m_numRestBytes = 0;
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m_line = 0;
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m_column = 0;
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m_skipBytes = 0;
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int width = m_renderMode.width( );
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int height = m_renderMode.height( );
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m_image.create( width, height, 32 );
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m_image.setAlphaBuffer( m_renderMode.alpha( ) );
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m_image.fill( tqRgb( 0, 0, 0 ) );
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m_bPixmapUpToDate = false;
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repaint( );
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if( !m_pProcess->start( TDEProcess::NotifyOnExit, TDEProcess::AllOutput ) )
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{
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KMessageBox::error( this, i18n( "Couldn't call povray.\n"
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"Please check your installation "
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"or set another povray command." ) );
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delete m_pProcess;
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m_pProcess = 0;
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return false;
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}
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m_bSuspended = false;
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return true;
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}
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void PMPovrayRenderWidget::killRendering( )
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{
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if( m_pProcess )
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{
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if( m_bSuspended )
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m_pProcess->kill( SIGCONT );
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m_bSuspended = false;
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m_pProcess->kill( );
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}
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}
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void PMPovrayRenderWidget::suspendRendering( )
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{
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if( m_pProcess )
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{
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m_bSuspended = true;
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m_pProcess->kill( SIGSTOP );
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}
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}
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void PMPovrayRenderWidget::resumeRendering( )
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{
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if( m_pProcess )
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{
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m_pProcess->kill( SIGCONT );
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m_bSuspended = false;
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}
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}
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void PMPovrayRenderWidget::slotPovrayMessage( TDEProcess*,
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char* buffer, int buflen )
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{
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TQString str;
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str.setLatin1( buffer, buflen );
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m_povrayOutput += str;
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emit povrayMessage( str );
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}
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void PMPovrayRenderWidget::slotPovrayImage( TDEProcess*, char* buffer, int buflen )
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{
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int index = 0;
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int i;
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int oldLine = m_line;
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if( m_rcvHeader )
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{
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// receive targa header
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while( ( m_rcvHeaderBytes < 18 ) && ( index < buflen ) )
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{
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m_header[m_rcvHeaderBytes] = ( unsigned char ) buffer[index];
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m_rcvHeaderBytes++;
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index++;
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}
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if( m_rcvHeaderBytes == 18 )
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{
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// complete targa header received
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m_rcvHeader = false;
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m_skipBytes = m_header[0]; // id length
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m_bytespp = m_header[16] / 8;
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}
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}
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if( m_skipBytes > 0 )
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{
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int skip = buflen - index;
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if( skip > m_skipBytes )
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skip = m_skipBytes;
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m_skipBytes -= skip;
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index += skip;
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}
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if( ( m_numRestBytes > 0 ) && ( index < buflen ) )
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{
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while( ( m_numRestBytes < m_bytespp ) && ( index < buflen ) )
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{
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m_restBytes[m_numRestBytes] = ( unsigned char ) buffer[index];
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index++;
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m_numRestBytes++;
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}
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if( m_numRestBytes == m_bytespp )
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{
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m_numRestBytes = 0;
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if( m_bytespp == 4 )
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setPixel( m_column, m_line,
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tqRgba( m_restBytes[2], m_restBytes[1],
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m_restBytes[0], m_restBytes[3] ) );
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else
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setPixel( m_column, m_line,
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tqRgb( m_restBytes[2], m_restBytes[1], m_restBytes[0] ) );
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m_column++;
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m_rcvPixels++;
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if( m_column == m_renderMode.width( ) )
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{
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m_column = 0;
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m_line++;
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}
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}
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}
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if( index < buflen )
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{
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int num = ( buflen - index ) / m_bytespp;
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for( i = 0; i < num; i++ )
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{
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if( m_bytespp == 4 )
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setPixel( m_column, m_line,
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tqRgba( buffer[index+2], buffer[index+1],
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buffer[index], buffer[index+3] ) );
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else
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setPixel( m_column, m_line,
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tqRgb( buffer[index+2], buffer[index+1],
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buffer[index] ) );
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index += m_bytespp;
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m_column++;
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m_rcvPixels++;
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if( m_column == m_renderMode.width( ) )
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{
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m_column = 0;
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m_line++;
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}
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}
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}
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if( index < buflen )
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{
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m_numRestBytes = buflen - index;
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for( i = 0; i < m_numRestBytes; i++ )
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{
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m_restBytes[i] = buffer[index];
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index++;
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}
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}
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if( m_line != oldLine )
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{
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TQPainter paint( this );
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int offset = 0;
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if( m_renderMode.subSection( ) )
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{
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double sr = m_renderMode.startRow( );
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if( sr < 1 )
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offset = ( int ) ( m_renderMode.height( ) * sr + 0.5 );
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else
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offset += ( int ) sr;
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}
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paint.drawImage( 0, offset + oldLine,
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m_image.copy( 0, offset + oldLine, m_image.width( ), offset + m_line - oldLine ) );
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emit lineFinished( m_line - 1 );
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}
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int oldProgress = m_progress;
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int numPixels = 0;
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if( m_renderMode.subSection( ) )
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{
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int sr = 0;
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if( m_renderMode.startRow( ) < 1 )
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sr = ( int ) ( m_renderMode.height( ) * m_renderMode.startRow( ) + 0.5 );
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else
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sr = ( int ) m_renderMode.startRow( );
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int er = 0;
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if( m_renderMode.endRow( ) < 1 )
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er = ( int ) ( m_renderMode.height( ) * m_renderMode.endRow( ) + 0.5 );
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else
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er = ( int ) m_renderMode.endRow( );
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numPixels = m_renderMode.width( ) * ( er - sr );
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}
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else
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numPixels = m_renderMode.width( ) * m_renderMode.height( );
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m_progress = m_rcvPixels * 100 / numPixels;
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if( m_progress != oldProgress )
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emit progress( m_progress );
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m_bPixmapUpToDate = false;
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}
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void PMPovrayRenderWidget::setPixel( int x, int y, uint c )
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{
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if( m_renderMode.subSection( ) )
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{
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double sr = m_renderMode.startRow( );
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if( sr < 1 )
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y += ( int ) ( m_renderMode.height( ) * sr + 0.5 );
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else
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y += ( int ) sr;
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}
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if( x >= 0 && x < m_image.width( ) &&
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y >= 0 && y < m_image.height( ) )
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m_image.setPixel( x, y, c );
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}
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/**
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void PMPovrayRenderWidget::slotWroteStdin( TDEProcess* )
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{
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if( m_pProcess )
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m_pProcess->closeStdin( );
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m_data.resize( 0 );
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}
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*/
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void PMPovrayRenderWidget::slotRenderingFinished( TDEProcess* )
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{
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if( m_pProcess->normalExit( ) )
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emit( finished( m_pProcess->exitStatus( ) ) );
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else
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emit( finished( -1000 ) );
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cleanup( );
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}
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void PMPovrayRenderWidget::paintEvent( TQPaintEvent* ev )
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{
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if( !m_bPixmapUpToDate )
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{
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if( !m_image.isNull( ) )
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m_pixmap.convertFromImage( m_image );
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m_bPixmapUpToDate = true;
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}
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bitBlt( this, ev->rect( ).left( ), ev->rect( ).top( ),
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&m_pixmap, ev->rect( ).left( ), ev->rect( ).top( ),
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ev->rect( ).width( ), ev->rect( ).height( ), CopyROP );
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}
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void PMPovrayRenderWidget::cleanup( )
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{
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if( m_pProcess )
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delete m_pProcess;
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m_pProcess = 0;
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if( m_pTempFile )
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{
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m_pTempFile->unlink( );
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delete m_pTempFile;
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}
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m_pTempFile = 0;
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}
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TQSize PMPovrayRenderWidget::sizeHint( ) const
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{
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TQSize s;
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if( m_image.isNull( ) )
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s = TQSize( 200, 200 );
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else
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s = m_image.size( );
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return s.expandedTo( minimumSize( ) );
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}
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void PMPovrayRenderWidget::saveConfig( KConfig* cfg )
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{
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cfg->setGroup( "Povray" );
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#if ( ( TDE_VERSION_MAJOR == 3 ) && ( TDE_VERSION_MINOR <= 1 ) )
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cfg->writeEntry( "PovrayCommand", s_povrayCommand );
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cfg->writeEntry( "LibraryPaths", s_libraryPaths );
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#else
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cfg->writePathEntry( "PovrayCommand", s_povrayCommand );
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cfg->writePathEntry( "LibraryPaths", s_libraryPaths );
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#endif
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}
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void PMPovrayRenderWidget::restoreConfig( KConfig* cfg )
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{
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cfg->setGroup( "Povray" );
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#if ( ( TDE_VERSION_MAJOR == 3 ) && ( TDE_VERSION_MINOR <= 1 ) )
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s_povrayCommand = cfg->readEntry( "PovrayCommand", s_povrayCommand );
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s_libraryPaths = cfg->readListEntry( "LibraryPaths" );
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#else
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s_povrayCommand = cfg->readPathEntry( "PovrayCommand", s_povrayCommand );
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s_libraryPaths = cfg->readPathListEntry( "LibraryPaths" );
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#endif
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}
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void PMPovrayRenderWidget::startDrag( )
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{
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TQImageDrag* d = new TQImageDrag( m_image, this );
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d->dragCopy( );
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}
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#include "pmpovrayrenderwidget.moc"
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