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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QITEMSELECTIONMODEL_H
#define QITEMSELECTIONMODEL_H
#include <QtCore/qset.h>
#include <QtCore/qvector.h>
#include <QtCore/qlist.h>
#include <QtCore/qabstractitemmodel.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
#ifndef QT_NO_ITEMVIEWS
class Q_GUI_EXPORT QItemSelectionRange
{
public:
inline QItemSelectionRange() {}
inline QItemSelectionRange(const QItemSelectionRange &other)
: tl(other.tl), br(other.br) {}
inline QItemSelectionRange(const QModelIndex &topLeft, const QModelIndex &bottomRight);
explicit inline QItemSelectionRange(const QModelIndex &index)
{ tl = index; br = tl; }
inline int top() const { return tl.row(); }
inline int left() const { return tl.column(); }
inline int bottom() const { return br.row(); }
inline int right() const { return br.column(); }
inline int width() const { return br.column() - tl.column() + 1; }
inline int height() const { return br.row() - tl.row() + 1; }
inline QModelIndex topLeft() const { return QModelIndex(tl); }
inline QModelIndex bottomRight() const { return QModelIndex(br); }
inline QModelIndex parent() const { return tl.parent(); }
inline const QAbstractItemModel *model() const { return tl.model(); }
inline bool contains(const QModelIndex &index) const
{
return (parent() == index.parent()
&& tl.row() <= index.row() && tl.column() <= index.column()
&& br.row() >= index.row() && br.column() >= index.column());
}
inline bool contains(int row, int column, const QModelIndex &parentIndex) const
{
return (parent() == parentIndex
&& tl.row() <= row && tl.column() <= column
&& br.row() >= row && br.column() >= column);
}
bool intersects(const QItemSelectionRange &other) const;
QItemSelectionRange intersect(const QItemSelectionRange &other) const; // ### Qt 5: make QT4_SUPPORT
inline QItemSelectionRange intersected(const QItemSelectionRange &other) const
{ return intersect(other); }
inline bool operator==(const QItemSelectionRange &other) const
{ return (tl == other.tl && br == other.br); }
inline bool operator!=(const QItemSelectionRange &other) const
{ return !operator==(other); }
inline bool isValid() const
{
return (tl.isValid() && br.isValid() && tl.parent() == br.parent()
&& top() <= bottom() && left() <= right());
}
QModelIndexList indexes() const;
private:
QPersistentModelIndex tl, br;
};
Q_DECLARE_TYPEINFO(QItemSelectionRange, Q_MOVABLE_TYPE);
inline QItemSelectionRange::QItemSelectionRange(const QModelIndex &atopLeft,
const QModelIndex &abottomRight)
{ tl = atopLeft; br = abottomRight; }
class QItemSelection;
class QItemSelectionModelPrivate;
class Q_GUI_EXPORT QItemSelectionModel : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QItemSelectionModel)
Q_FLAGS(SelectionFlags)
public:
enum SelectionFlag {
NoUpdate = 0x0000,
Clear = 0x0001,
Select = 0x0002,
Deselect = 0x0004,
Toggle = 0x0008,
Current = 0x0010,
Rows = 0x0020,
Columns = 0x0040,
SelectCurrent = Select | Current,
ToggleCurrent = Toggle | Current,
ClearAndSelect = Clear | Select
};
Q_DECLARE_FLAGS(SelectionFlags, SelectionFlag)
explicit QItemSelectionModel(QAbstractItemModel *model);
explicit QItemSelectionModel(QAbstractItemModel *model, QObject *parent);
virtual ~QItemSelectionModel();
QModelIndex currentIndex() const;
bool isSelected(const QModelIndex &index) const;
bool isRowSelected(int row, const QModelIndex &parent) const;
bool isColumnSelected(int column, const QModelIndex &parent) const;
bool rowIntersectsSelection(int row, const QModelIndex &parent) const;
bool columnIntersectsSelection(int column, const QModelIndex &parent) const;
bool hasSelection() const;
QModelIndexList selectedIndexes() const;
QModelIndexList selectedRows(int column = 0) const;
QModelIndexList selectedColumns(int row = 0) const;
const QItemSelection selection() const;
const QAbstractItemModel *model() const;
public Q_SLOTS:
void setCurrentIndex(const QModelIndex &index, QItemSelectionModel::SelectionFlags command);
virtual void select(const QModelIndex &index, QItemSelectionModel::SelectionFlags command);
virtual void select(const QItemSelection &selection, QItemSelectionModel::SelectionFlags command);
virtual void clear();
virtual void reset();
void clearSelection();
Q_SIGNALS:
void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
void currentChanged(const QModelIndex ¤t, const QModelIndex &previous);
void currentRowChanged(const QModelIndex ¤t, const QModelIndex &previous);
void currentColumnChanged(const QModelIndex ¤t, const QModelIndex &previous);
protected:
QItemSelectionModel(QItemSelectionModelPrivate &dd, QAbstractItemModel *model);
void emitSelectionChanged(const QItemSelection &newSelection, const QItemSelection &oldSelection);
private:
Q_DISABLE_COPY(QItemSelectionModel)
Q_PRIVATE_SLOT(d_func(), void _q_columnsAboutToBeRemoved(const QModelIndex&, int, int))
Q_PRIVATE_SLOT(d_func(), void _q_rowsAboutToBeRemoved(const QModelIndex&, int, int))
Q_PRIVATE_SLOT(d_func(), void _q_columnsAboutToBeInserted(const QModelIndex&, int, int))
Q_PRIVATE_SLOT(d_func(), void _q_rowsAboutToBeInserted(const QModelIndex&, int, int))
Q_PRIVATE_SLOT(d_func(), void _q_layoutAboutToBeChanged())
Q_PRIVATE_SLOT(d_func(), void _q_layoutChanged())
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QItemSelectionModel::SelectionFlags)
// dummy implentation of qHash() necessary for instantiating QList<QItemSelectionRange>::toSet() with MSVC
inline uint qHash(const QItemSelectionRange &) { return 0; }
class Q_GUI_EXPORT QItemSelection : public QList<QItemSelectionRange>
{
public:
QItemSelection() {}
QItemSelection(const QModelIndex &topLeft, const QModelIndex &bottomRight);
void select(const QModelIndex &topLeft, const QModelIndex &bottomRight);
bool contains(const QModelIndex &index) const;
QModelIndexList indexes() const;
void merge(const QItemSelection &other, QItemSelectionModel::SelectionFlags command);
static void split(const QItemSelectionRange &range,
const QItemSelectionRange &other,
QItemSelection *result);
};
#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug, const QItemSelectionRange &);
#endif
#endif // QT_NO_ITEMVIEWS
QT_END_NAMESPACE
QT_END_HEADER
#endif // QITEMSELECTIONMODEL_H
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