chord-table-model.hh

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// Copyright (C) 2009-2012, Romain Goffe <romain.goffe@gmail.com>
// Copyright (C) 2009-2012, Alexandre Dupas <alexandre.dupas@gmail.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
//******************************************************************************
#ifndef __CHORD_TABLE_MODEL_HH__
#define __CHORD_TABLE_MODEL_HH__

#include <QAbstractTableModel>
#include <QModelIndex>
#include <QString>
#include <QVector>

class CChord;

class CChordTableModel : public QAbstractTableModel
{
  Q_OBJECT

  public:
  enum ChordRoles {
    NameRole = Qt::UserRole + 1, 
    StringsRole = Qt::UserRole + 2, 
    InstrumentRole = Qt::UserRole + 3, 
    ImportantRole = Qt::UserRole + 4, 
    MaxRole = ImportantRole
  };

  CChordTableModel(QObject *parent=0);

  ~CChordTableModel();

  virtual int columnCount(const QModelIndex & index = QModelIndex()) const;

  virtual void setColumnCount(int value);

  virtual int rowCount(const QModelIndex & index = QModelIndex()) const;

  virtual void setRowCount(int value);

  /* drag and drop */
  Qt::DropActions supportedDropActions() const;
  Qt::DropActions supportedDragActions() const;
  Qt::ItemFlags flags(const QModelIndex &index) const;
  QStringList mimeTypes() const;
  QMimeData * mimeData(const QModelIndexList &indexes) const;
  bool dropMimeData(const QMimeData *data, Qt::DropAction action,
            int row, int column, const QModelIndex &parent);

  QVariant data ( const QModelIndex & index, int role = Qt::DisplayRole ) const;

  bool setData(const QModelIndex & index, const QVariant & value, int role = Qt::EditRole);


  CChord * getChord(const QModelIndex & index) const;

public slots:
  void insertItem(const QModelIndex & index, const QString & value);
  void removeItem(const QModelIndex & index);
  void addItem(const QString & value);

private:
  QModelIndex indexFromPosition(int position);
  int positionFromIndex(const QModelIndex & index) const;

private:
  bool m_fixedColumnCount;
  bool m_fixedRowCount;
  int m_columnCount;
  int m_rowCount;
  QVector<CChord*> m_data;
};

#endif //__CHORD_TABLE_MODEL_HH__