mirror of
https://invent.kde.org/graphics/okular
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116 lines
3.1 KiB
C++
116 lines
3.1 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/QTransform>
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using namespace Okular;
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RotationJob::RotationJob( const QImage &image, Rotation oldRotation, Rotation newRotation, DocumentObserver *observer )
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: ThreadWeaver::QObjectDecorator( new RotationJobInternal( image, oldRotation, newRotation ) )
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, mObserver( observer ), m_pd( nullptr )
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, mRect( NormalizedRect() )
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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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void RotationJob::setRect( const NormalizedRect &rect )
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{
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mRect = rect;
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}
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DocumentObserver * RotationJob::observer() const
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{
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return mObserver;
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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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NormalizedRect RotationJob::rect() const
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{
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return mRect;
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}
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QTransform RotationJob::rotationMatrix( Rotation from, Rotation to )
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{
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QTransform 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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RotationJobInternal::RotationJobInternal( const QImage &image, Rotation oldRotation, Rotation newRotation )
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: mImage( image ), mOldRotation( oldRotation ), mNewRotation( newRotation )
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{
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}
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QImage RotationJobInternal::image() const
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{
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return mRotatedImage;
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}
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Rotation RotationJobInternal::rotation() const
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{
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return mNewRotation;
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}
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void RotationJobInternal::run(ThreadWeaver::JobPointer self, ThreadWeaver::Thread *thread)
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{
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Q_UNUSED(self);
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Q_UNUSED(thread);
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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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const QTransform matrix = RotationJob::rotationMatrix( mOldRotation, mNewRotation );
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mRotatedImage = mImage.transformed( matrix );
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}
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#include "moc_rotationjob_p.cpp"
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