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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef VIEW_H
#define VIEW_H

#include <QAbstractItemView>
#include <QItemSelection>
#include <QItemSelectionModel>
#include <QModelIndex>
#include <QRect>
#include <QSize>
#include <QWidget>

class LinearView : public QAbstractItemView
{
    Q_OBJECT
public:
    LinearView(QWidget *parent = 0);

    QRect itemViewportRect(const QModelIndex &index) const;
    void ensureVisible(const QModelIndex &index);
    QModelIndex itemAt(int x, int y) const;

protected slots:
    /*void dataChanged(const QModelIndex &topLeft, const QModelIndex
    &bottomRight);*/
    void rowsInserted(const QModelIndex &parent, int start, int end);
    void rowsRemoved(const QModelIndex &parent, int start, int end);
    /*void selectionChanged(const QItemSelection &deselected, const QItemSelection &selected);
    void verticalScrollbarAction(int action);
    void horizontalScrollbarAction(int action);*/

protected:
    void setSelection(const QRect&, QItemSelectionModel::SelectionFlags command);
    QRect selectionViewportRect(const QItemSelection &selection) const;
    QRect itemRect(const QModelIndex &item) const;
    bool isIndexHidden(const QModelIndex &index) const;
    int horizontalOffset() const;
    int verticalOffset() const;
    QModelIndex moveCursor(QAbstractItemView::CursorAction cursorAction,
                           Qt::KeyboardModifiers modifiers);

    void paintEvent(QPaintEvent *event);
    void resizeEvent(QResizeEvent *event);
    QSize sizeHint() const;

private:
    int rows(const QModelIndex &index = QModelIndex()) const;
    void updateGeometries();
};

#endif