File indexing completed on 2024-04-28 16:13:35

 /*
  * This file is part of the KDE project
  *
  * Copyright (C) 2013 Arjen Hiemstra <ahiemstra@heimr.nl>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "ImageDataItem.h"
 
 #include <QPixmap>
 #include <QSGSimpleTextureNode>
 #include <QQuickWindow>
 
 using namespace Calligra::Components;
 
 class ImageDataItem::Private
 {
 public:
     Private() : imageChanged(false)
     { }
 
     QImage data;
     bool imageChanged;
 };
 
 ImageDataItem::ImageDataItem(QQuickItem* parent)
     : QQuickItem{parent}, d{new Private}
 {
     setFlag(QQuickItem::ItemHasContents, true);
 }
 
 ImageDataItem::~ImageDataItem()
 {
     delete d;
 }
 
 QImage ImageDataItem::data() const
 {
     return d->data;
 }
 
 void ImageDataItem::setData(const QImage& newValue)
 {
     if(newValue != d->data) {
         d->data = newValue;
         setImplicitWidth(d->data.width());
         setImplicitHeight(d->data.height());
         d->imageChanged = true;
         update();
         emit dataChanged();
     }
 }
 
 QSGNode* ImageDataItem::updatePaintNode(QSGNode* node, QQuickItem::UpdatePaintNodeData*)
 {
     if(d->data.isNull()) {
         return node;
     }
 
     float w = widthValid() ? width() : d->data.width();
     float h = heightValid() ? height() : d->data.height();
 
     auto texNode = static_cast<QSGSimpleTextureNode*>(node);
     if(!texNode) {
         texNode = new QSGSimpleTextureNode{};
     }
     texNode->setRect(0, 0, w, h);
 
     if (!texNode->texture() || d->imageChanged) {
         delete texNode->texture();
         auto texture = window()->createTextureFromImage(d->data);
         texNode->setTexture(texture);
         d->imageChanged = false;
     }
 
     return texNode;
 }