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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#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
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