/**************************************************************************** ** ** 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 QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** 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. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU General ** Public License version 3.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of this ** file. Please review the following information to ensure the GNU General ** Public License version 3.0 requirements will be met: ** http://www.gnu.org/copyleft/gpl.html. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QITEMSELECTIONMODEL_H #define QITEMSELECTIONMODEL_H #include #include #include #include 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()); } bool isEmpty() const; 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::toSet() with MSVC inline uint qHash(const QItemSelectionRange &) { return 0; } class Q_GUI_EXPORT QItemSelection : public QList { 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