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127 lines
2.7 KiB
127 lines
2.7 KiB
/* |
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SPDX-FileCopyrightText: 2004 Esben Mose Hansen <[email protected]> |
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SPDX-License-Identifier: GPL-2.0-or-later |
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*/ |
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#pragma once |
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#include <QPixmap> |
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class HistoryModel; |
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class QString; |
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class QMimeData; |
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class QDataStream; |
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class HistoryItem; |
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typedef QSharedPointer<HistoryItem> HistoryItemPtr; |
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typedef QSharedPointer<const HistoryItem> HistoryItemConstPtr; |
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enum class HistoryItemType { |
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Text, |
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Image, |
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Url, |
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}; |
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/** |
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* An entry in the clipboard history. |
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*/ |
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class HistoryItem |
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{ |
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public: |
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explicit HistoryItem(const QByteArray &uuid); |
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virtual ~HistoryItem(); |
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/** |
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* Returns the item type. |
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*/ |
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virtual HistoryItemType type() const = 0; |
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/** |
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* Return the current item as text |
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* An image would be returned as a descriptive |
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* text, such as 32x43 image. |
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*/ |
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virtual QString text() const = 0; |
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/** |
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* @return uuid of current item. |
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*/ |
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const QByteArray &uuid() const |
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{ |
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return m_uuid; |
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} |
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/** |
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* Return the current item as pixmap |
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* A text would be returned as a null pixmap, |
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* which is also the default implementation |
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*/ |
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inline virtual const QPixmap &image() const; |
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/** |
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* Returns a pointer to a QMimeData suitable for QClipboard::setMimeData(). |
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*/ |
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virtual QMimeData *mimeData() const = 0; |
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/** |
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* Write object on datastream |
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*/ |
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virtual void write(QDataStream &stream) const = 0; |
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/** |
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* Equality. |
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*/ |
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virtual bool operator==(const HistoryItem &rhs) const = 0; |
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/** |
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* Create an HistoryItem from MimeSources (i.e., clipboard data) |
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* returns null if create fails (e.g, unsupported mimetype) |
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*/ |
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static HistoryItemPtr create(const QMimeData *data); |
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/** |
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* Create an HistoryItem from data stream (i.e., disk file) |
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* returns null if creation fails. In this case, the datastream |
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* is left in an undefined state. |
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*/ |
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static HistoryItemPtr create(QDataStream &dataStream); |
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/** |
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* previous item's uuid |
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* TODO: drop, only used in unit test now |
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*/ |
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QByteArray previous_uuid() const; |
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/** |
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* next item's uuid |
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* TODO: drop, only used in unit test now |
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*/ |
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QByteArray next_uuid() const; |
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void setModel(HistoryModel *model); |
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protected: |
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HistoryModel *m_model; |
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private: |
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QByteArray m_uuid; |
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}; |
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inline const QPixmap &HistoryItem::image() const |
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{ |
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static QPixmap nullPixmap; |
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return nullPixmap; |
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} |
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inline QDataStream &operator<<(QDataStream &lhs, HistoryItem const *const rhs) |
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{ |
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if (rhs) { |
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rhs->write(lhs); |
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} |
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return lhs; |
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} |
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Q_DECLARE_METATYPE(HistoryItem *) |
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Q_DECLARE_METATYPE(HistoryItemPtr) |
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Q_DECLARE_METATYPE(HistoryItemConstPtr) |
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Q_DECLARE_METATYPE(HistoryItemType)
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