- Qt 5.5
- Qt Widgets
- Item Views Puzzle Example
- piecesmodel.h Example File
- Qt 5.5.1 Reference Documentation

# piecesmodel.h Example File

itemviews/puzzle/piecesmodel.h

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
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    #ifndef PIECESLIST_H
    #define PIECESLIST_H

    #include <QAbstractListModel>
    #include <QList>
    #include <QPixmap>
    #include <QPoint>
    #include <QStringList>

    class QMimeData;

    class PiecesModel : public QAbstractListModel
    {
        Q_OBJECT

    public:
        explicit PiecesModel(int pieceSize, QObject *parent = 0);

        QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
        Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;
        bool removeRows(int row, int count, const QModelIndex &parent) Q_DECL_OVERRIDE;

        bool dropMimeData(const QMimeData *data, Qt::DropAction action,
                          int row, int column, const QModelIndex &parent) Q_DECL_OVERRIDE;
        QMimeData *mimeData(const QModelIndexList &indexes) const Q_DECL_OVERRIDE;
        QStringList mimeTypes() const Q_DECL_OVERRIDE;
        int rowCount(const QModelIndex &parent) const Q_DECL_OVERRIDE;
        Qt::DropActions supportedDropActions() const Q_DECL_OVERRIDE;

        void addPiece(const QPixmap &pixmap, const QPoint &location);
        void addPieces(const QPixmap& pixmap);

    private:
        QList<QPoint> locations;
        QList<QPixmap> pixmaps;

        int m_PieceSize;
    };

    #endif // PIECESLIST_H