piecesmodel.h Example File

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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:
     PiecesModel(QObject *parent = 0);

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

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

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

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

 #endif