Mercurial > hg > svcore
view data/model/TabularModel.h @ 1042:16dc7307d43a cxx11
More build fixes
author | Chris Cannam |
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date | Wed, 04 Mar 2015 13:52:48 +0000 |
parents | 957e6a5c8495 |
children | 0559f25b99f2 |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2008 QMUL. 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. See the file COPYING included with this distribution for more information. */ #ifndef _TABULAR_MODEL_H_ #define _TABULAR_MODEL_H_ #include <QVariant> #include <QString> class Command; /** * TabularModel is an abstract base class for models that support * direct access to data in a tabular form. A model that implements * TabularModel may be displayed and, perhaps, edited in a data * spreadsheet window. * * This is very like a cut-down QAbstractItemModel. It assumes a * relationship between row number and frame time. */ class TabularModel { public: virtual ~TabularModel() { } virtual int getRowCount() const = 0; virtual int getColumnCount() const = 0; virtual QString getHeading(int column) const = 0; enum { SortRole = Qt::UserRole }; enum SortType { SortNumeric, SortAlphabetical }; virtual QVariant getData(int row, int column, int role) const = 0; virtual bool isColumnTimeValue(int col) const = 0; virtual SortType getSortType(int col) const = 0; virtual long getFrameForRow(int row) const = 0; virtual int getRowForFrame(long frame) const = 0; virtual bool isEditable() const { return false; } virtual Command *getSetDataCommand(int /* row */, int /* column */, const QVariant &, int /* role */) { return 0; } virtual Command *getInsertRowCommand(int /* beforeRow */) { return 0; } virtual Command *getRemoveRowCommand(int /* row */) { return 0; } }; #endif