dbackdropnode_p.h

// SPDX-FileCopyrightText: 2024 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#pragma once
 
#include <dtkdeclarative_global.h>
#include <QSGRenderNode>
#include <QPointer>
#include <QImage>
 
QT_BEGIN_NAMESPACE
class QQuickItem;
class QSGTexture;
QT_END_NAMESPACE
 
DQUICK_BEGIN_NAMESPACE
 
class DBackdropNode : public QSGRenderNode {
public:
    inline QSizeF size() const {
        return m_size;
    }
    QSGTexture *texture() const;
 
    static DBackdropNode *createRhiNode(QQuickItem *item);
    static DBackdropNode *createSoftwareNode(QQuickItem *item);
 
    QRectF rect() const override;
    RenderingFlags flags() const override;
 
    void resize(const QSizeF &size);
    void setContentItem(QQuickItem *item);
 
    typedef void(*TextureChangedNotifer)(DBackdropNode *node, void *data);
    void setTextureChangedCallback(TextureChangedNotifer callback, void *data);
    inline void doNotifyTextureChanged() {
        if (!m_renderCallback || !m_item)
            return;
        m_renderCallback(this, m_callbackData);
    }
    virtual QImage toImage() const { return QImage(); }
 
    QQuickWindow *renderWindow() const;
    qreal effectiveDevicePixelRatio() const;
 
protected:
    DBackdropNode(QQuickItem *item, QSGTexture *texture);
 
    QPointer<QQuickItem> m_item;
    QPointer<QQuickItem> m_content;
    QSizeF m_size;
    QRectF m_rect;
    QScopedPointer<QSGTexture> m_texture;
    TextureChangedNotifer m_renderCallback = nullptr;
    void *m_callbackData = nullptr;
};
 
DQUICK_END_NAMESPACE