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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "declarativechartnode_p.h"
++ #include "declarativeabstractrendernode_p.h"
++
++ #include <QtQuick/QQuickWindow>
++ #include <QtQuick/QSGImageNode>
++ #include <QtQuick/QSGRendererInterface>
++
++ #ifndef QT_NO_OPENGL
++ # include "declarativeopenglrendernode_p.h"
++ #endif
++
++ QT_BEGIN_NAMESPACE
++
++ // This node handles displaying of the chart itself
++ DeclarativeChartNode::DeclarativeChartNode(QQuickWindow *window) :
++ QSGRootNode(),
++ m_window(window),
++ m_renderNode(nullptr),
++ m_imageNode(nullptr)
++ {
++ // Create a DeclarativeRenderNode for correct QtQuick Backend
++ #ifndef QT_NO_OPENGL
++ if (m_window->rendererInterface()->graphicsApi() == QSGRendererInterface::OpenGL)
++ m_renderNode = new DeclarativeOpenGLRenderNode(m_window);
++ #endif
++
++ if (m_renderNode) {
++ m_renderNode->setFlag(OwnedByParent);
++ appendChildNode(m_renderNode);
++ m_renderNode->setRect(QRectF(0, 0, 0, 0)); // Hide child node by default
++ }
++ }
++
++ DeclarativeChartNode::~DeclarativeChartNode()
++ {
++ }
++
++ // Must be called on render thread and in context
++ void DeclarativeChartNode::createTextureFromImage(const QImage &chartImage)
++ {
++ static auto const defaultTextureOptions = QQuickWindow::CreateTextureOptions(QQuickWindow::TextureHasAlphaChannel |
++ QQuickWindow::TextureOwnsGLTexture);
++
++ auto texture = m_window->createTextureFromImage(chartImage, defaultTextureOptions);
++ // Create Image node if needed
++ if (!m_imageNode) {
++ m_imageNode = m_window->createImageNode();
++ m_imageNode->setFlag(OwnedByParent);
++ m_imageNode->setOwnsTexture(true);
++ m_imageNode->setTexture(texture);
++ prependChildNode(m_imageNode);
++ } else {
++ m_imageNode->setTexture(texture);
++ }
++ if (!m_rect.isEmpty())
++ m_imageNode->setRect(m_rect);
++ }
++
++ void DeclarativeChartNode::setRect(const QRectF &rect)
++ {
++ m_rect = rect;
++
++ if (m_imageNode)
++ m_imageNode->setRect(rect);
++ }
++
++ QT_END_NAMESPACE