File indexing completed on 2024-06-02 04:51:24

 /*
  * Copyright 2018  Malte Veerman <malte.veerman@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) version 3 or any later version
  * accepted by the membership of KDE e.V. (or its successor approved
  * by the membership of KDE e.V.), which shall act as a proxy
  * defined in Section 14 of version 3 of the license.
  *
  * 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, see <http://www.gnu.org/licenses/>.
  */
 
 #include "PixmapItem.h"
 
 #include <QPaintEngine>
 #include <QPainter>
 #include <QSGSimpleTextureNode>
 #include <QQuickWindow>
 
 #include <KDeclarative/KQuickAddons/ManagedTextureNode>
 
 
 PixmapItem::PixmapItem()
     : m_sizeChanged( true )
 {
     setFlag( ItemHasContents );
 }
 
 void PixmapItem::setSource( const QPixmap& source )
 {
     if( m_source.toImage() == source.toImage() )
         return;
 
     m_source = source;
     m_pixmapChanged = true;
     Q_EMIT sourceChanged();
 
     setImplicitSize( source.width(), source.height() );
 
     update();
 }
 
 QSGNode* PixmapItem::updatePaintNode( QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData )
 {
     Q_UNUSED( updatePaintNodeData )
 
     if( m_source.isNull() || width() == 0 || height() == 0 )
     {
         delete oldNode;
 
         return nullptr;
     }
 
     ManagedTextureNode *textureNode = dynamic_cast<ManagedTextureNode*>( oldNode );
 
     if( !textureNode || m_pixmapChanged )
     {
         delete oldNode;
         textureNode = new ManagedTextureNode;
         textureNode->setFiltering( QSGTexture::Linear );
         textureNode->setTexture( QSharedPointer<QSGTexture>( window()->createTextureFromImage( m_source.toImage(), QQuickWindow::TextureCanUseAtlas ) ) );
         m_sizeChanged = true;
         m_pixmapChanged = false;
     }
 
     if( m_sizeChanged )
     {
         textureNode->setRect( boundingRect() );
         m_sizeChanged = false;
     }
 
     return textureNode;
 }
 
 void PixmapItem::geometryChanged( const QRectF &newGeometry, const QRectF &oldGeometry )
 {
     if( newGeometry.size() != oldGeometry.size() )
         m_sizeChanged = true;
 
     update();
 
     QQuickItem::geometryChanged( newGeometry, oldGeometry );
 }