ClipboardManager.h

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// Copyright 2015 - 2026, GIBIS-UNIFESP and the wiRedPanda contributors
// SPDX-License-Identifier: GPL-3.0-or-later

 
#pragma once
 
#include <optional>
 
#include <QCoreApplication>
#include <QDataStream>
#include <QList>
#include <QPointF>
#include <QVersionNumber>
 
class QGraphicsItem;
class QImage;
class QMimeData;
class QRectF;
class QTransform;
class Scene;

class ClipboardManager
{
    Q_DECLARE_TR_FUNCTIONS(ClipboardManager)
 
public:
    explicit ClipboardManager(Scene *scene);

    void copy();

    void cut();

    void paste();

    void duplicate();

    static bool canPaste(const QMimeData *mimeData);

    void cloneDrag(const QPointF &mousePos);

    static constexpr int kMaxDragImageDimension = 1024;

    static QImage buildDragImage(Scene *scene, const QTransform &viewTransform, const QRectF &sourceRect);
 
private:
    static void serializeItems(const QList<QGraphicsItem *> &items, QDataStream &stream);

    void serializeAndDelete(const QList<QGraphicsItem *> &items, QDataStream &stream);

    QList<QGraphicsItem *> deserializeAndAdd(QDataStream &stream, const QVersionNumber &version,
                                             std::optional<QPointF> fixedOffset = std::nullopt);
 
    Scene *m_scene = nullptr;
};