mirror of
https://invent.kde.org/graphics/okular
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95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/***************************************************************************
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* Copyright (C) 2006 by Tobias Koenig <tokoe@kde.org> *
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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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#include "rotationjob_p.h"
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#include <QtGui/QMatrix>
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using namespace Okular;
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RotationJob::RotationJob( const QImage &image, Rotation oldRotation, Rotation newRotation, int id )
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: mImage( image ), mOldRotation( oldRotation ), mNewRotation( newRotation ), mId( id ), m_pd( 0 )
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{
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}
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void RotationJob::setPage( PagePrivate * pd )
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{
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m_pd = pd;
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}
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QImage RotationJob::image() const
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{
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return mRotatedImage;
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}
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Rotation RotationJob::rotation() const
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{
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return mNewRotation;
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}
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int RotationJob::id() const
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{
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return mId;
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}
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PagePrivate * RotationJob::page() const
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{
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return m_pd;
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}
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void RotationJob::run()
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{
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if ( mOldRotation == mNewRotation ) {
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mRotatedImage = mImage;
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return;
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}
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QMatrix matrix = rotationMatrix( mOldRotation, mNewRotation );
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mRotatedImage = mImage.transformed( matrix );
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}
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QMatrix RotationJob::rotationMatrix( Rotation from, Rotation to )
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{
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QMatrix matrix;
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if ( from == Rotation0 ) {
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if ( to == Rotation90 )
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matrix.rotate( 90 );
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else if ( to == Rotation180 )
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matrix.rotate( 180 );
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else if ( to == Rotation270 )
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matrix.rotate( 270 );
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} else if ( from == Rotation90 ) {
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if ( to == Rotation180 )
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matrix.rotate( 90 );
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else if ( to == Rotation270 )
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matrix.rotate( 180 );
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else if ( to == Rotation0 )
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matrix.rotate( 270 );
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} else if ( from == Rotation180 ) {
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if ( to == Rotation270 )
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matrix.rotate( 90 );
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else if ( to == Rotation0 )
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matrix.rotate( 180 );
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else if ( to == Rotation90 )
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matrix.rotate( 270 );
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} else if ( from == Rotation270 ) {
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if ( to == Rotation0 )
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matrix.rotate( 90 );
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else if ( to == Rotation90 )
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matrix.rotate( 180 );
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else if ( to == Rotation180 )
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matrix.rotate( 270 );
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}
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return matrix;
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}
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#include "rotationjob_p.moc"
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