/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QTABLEVIEW_P_H+
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#define QTABLEVIEW_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include <QtCore/QList>+
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#include <QtCore/QLinkedList>+
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#include <QtCore/QMap>+
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#include <QtCore/QSet>+
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#include <QtCore/QDebug>+
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#include "private/qabstractitemview_p.h"+
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+
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#ifndef QT_NO_TABLEVIEW+
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+
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QT_BEGIN_NAMESPACE+
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+
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/** \internal+
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*+
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* This is a list of span with a binary index to look up quickly a span at a certain index.+
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*+
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* The index is a map of map.+
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* spans are mentaly divided into sub spans so that the start of any subspans doesn't overlap+
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* with any other subspans. There is no real representation of the subspans.+
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* The key of the first map is the row where the subspan starts, the value of the first map is+
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* a list (map) of all subspans that starts at the same row.  It is indexed with its row+
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*/+
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class Q_AUTOTEST_EXPORT QSpanCollection+
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{+
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public:+
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    struct Span+
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    {+
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        int m_top;+
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        int m_left;+
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        int m_bottom;+
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        int m_right;+
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        bool will_be_deleted;+
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        Span()+
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        : m_top(-1), m_left(-1), m_bottom(-1), m_right(-1), will_be_deleted(false) { }+
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        Span(int row, int column, int rowCount, int columnCount)+
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        : m_top(row), m_left(column), m_bottom(row+rowCount-1), m_right(column+columnCount-1), will_be_deleted(false) { }+
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        inline int top() const { return m_top; }+
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        inline int left() const { return m_left; }+
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        inline int bottom() const { return m_bottom; }+
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        inline int right() const { return m_right; }+
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        inline int height() const { return m_bottom - m_top + 1; }+
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        inline int width() const { return m_right - m_left + 1; }+
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    };+
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+
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    ~QSpanCollection()+
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    {+
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        qDeleteAll(spans);+
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    }+
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+
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    void addSpan(Span *span);+
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    void updateSpan(Span *span, int old_height);+
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    Span *spanAt(int x, int y) const;+
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    void clear();+
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    QList<Span *> spansInRect(int x, int y, int w, int h) const;+
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+
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    void updateInsertedRows(int start, int end);+
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    void updateInsertedColumns(int start, int end);+
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    void updateRemovedRows(int start, int end);+
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    void updateRemovedColumns(int start, int end);+
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+
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#ifdef QT_BUILD_INTERNAL+
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    bool checkConsistency() const;+
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#endif+
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+
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    typedef QLinkedList<Span *> SpanList;+
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    SpanList spans; //lists of all spans+
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private:+
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    //the indexes are negative so the QMap::lowerBound do what i need.+
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    typedef QMap<int, Span *> SubIndex;+
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    typedef QMap<int, SubIndex> Index;+
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    Index index;+
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+
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    bool cleanSpanSubIndex(SubIndex &subindex, int end, bool update = false);+
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};+
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+
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Q_DECLARE_TYPEINFO ( QSpanCollection::Span, Q_MOVABLE_TYPE);+
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+
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+
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class QTableViewPrivate : public QAbstractItemViewPrivate+
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{+
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    Q_DECLARE_PUBLIC(QTableView)+
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public:+
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    QTableViewPrivate()+
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        : showGrid(true), gridStyle(Qt::SolidLine),+
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          rowSectionAnchor(-1), columnSectionAnchor(-1),+
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          columnResizeTimerID(0), rowResizeTimerID(0),+
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          horizontalHeader(0), verticalHeader(0),+
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          sortingEnabled(false), geometryRecursionBlock(false),+
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          visualCursor(QPoint())+
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 {+
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    wrapItemText = true;+
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#ifndef QT_NO_DRAGANDDROP+
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    overwrite = true;+
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#endif+
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 }+
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    void init();+
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    void trimHiddenSelections(QItemSelectionRange *range) const;+
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+
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    inline bool isHidden(int row, int col) const {+
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        return verticalHeader->isSectionHidden(row)+
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            || horizontalHeader->isSectionHidden(col);+
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    }+
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    inline int visualRow(int logicalRow) const {+
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        return verticalHeader->visualIndex(logicalRow);+
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    }+
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    inline int visualColumn(int logicalCol) const {+
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        return horizontalHeader->visualIndex(logicalCol);+
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    }+
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    inline int logicalRow(int visualRow) const {+
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        return verticalHeader->logicalIndex(visualRow);+
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    }+
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    inline int logicalColumn(int visualCol) const {+
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        return horizontalHeader->logicalIndex(visualCol);+
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    }+
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+
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    int sectionSpanEndLogical(const QHeaderView *header, int logical, int span) const;+
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    int sectionSpanSize(const QHeaderView *header, int logical, int span) const;+
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    bool spanContainsSection(const QHeaderView *header, int logical, int spanLogical, int span) const;+
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    void drawAndClipSpans(const QRegion &area, QPainter *painter,+
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                          const QStyleOptionViewItemV4 &option, QBitArray *drawn,+
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                          int firstVisualRow, int lastVisualRow, int firstVisualColumn, int lastVisualColumn);+
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    void drawCell(QPainter *painter, const QStyleOptionViewItemV4 &option, const QModelIndex &index);+
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+
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    bool showGrid;+
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    Qt::PenStyle gridStyle;+
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    int rowSectionAnchor;+
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    int columnSectionAnchor;+
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    int columnResizeTimerID;+
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    int rowResizeTimerID;+
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    QList<int> columnsToUpdate;+
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    QList<int> rowsToUpdate;+
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    QHeaderView *horizontalHeader;+
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    QHeaderView *verticalHeader;+
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    QWidget *cornerWidget;+
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    bool sortingEnabled;+
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    bool geometryRecursionBlock;+
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    QPoint visualCursor;  // (Row,column) cell coordinates to track through span navigation.+
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+
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    QSpanCollection spans;+
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+
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    void setSpan(int row, int column, int rowSpan, int columnSpan);+
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    QSpanCollection::Span span(int row, int column) const;+
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    inline int rowSpan(int row, int column) const {+
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        return span(row, column).height();+
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    }+
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    inline int columnSpan(int row, int column) const {+
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        return span(row, column).width();+
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    }+
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    inline bool hasSpans() const {+
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        return !spans.spans.isEmpty();+
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    }+
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    inline int rowSpanHeight(int row, int span) const {+
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        return sectionSpanSize(verticalHeader, row, span);+
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    }+
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    inline int columnSpanWidth(int column, int span) const {+
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        return sectionSpanSize(horizontalHeader, column, span);+
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    }+
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    inline int rowSpanEndLogical(int row, int span) const {+
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        return sectionSpanEndLogical(verticalHeader, row, span);+
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    }+
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    inline int columnSpanEndLogical(int column, int span) const {+
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        return sectionSpanEndLogical(horizontalHeader, column, span);+
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    }+
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+
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    inline bool isRowHidden(int row) const {+
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        return verticalHeader->isSectionHidden(row);+
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    }+
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    inline bool isColumnHidden(int column) const {+
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        return horizontalHeader->isSectionHidden(column);+
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    }+
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    inline bool isCellEnabled(int row, int column) const {+
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        return isIndexEnabled(model->index(row, column, root));+
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    }+
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    inline bool isVisualRowHiddenOrDisabled(int row, int column) const {+
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        int r = logicalRow(row);+
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        int c = logicalColumn(column);+
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        return isRowHidden(r) || !isCellEnabled(r, c);+
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    }+
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    inline bool isVisualColumnHiddenOrDisabled(int row, int column) const {+
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        int r = logicalRow(row);+
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        int c = logicalColumn(column);+
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        return isColumnHidden(c) || !isCellEnabled(r, c);+
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    }+
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+
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    QRect visualSpanRect(const QSpanCollection::Span &span) const;+
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+
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    void _q_selectRow(int row);+
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    void _q_selectColumn(int column);+
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+
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    void selectRow(int row, bool anchor);+
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    void selectColumn(int column, bool anchor);+
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+
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    void _q_updateSpanInsertedRows(const QModelIndex &parent, int start, int end);+
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    void _q_updateSpanInsertedColumns(const QModelIndex &parent, int start, int end);+
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    void _q_updateSpanRemovedRows(const QModelIndex &parent, int start, int end);+
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    void _q_updateSpanRemovedColumns(const QModelIndex &parent, int start, int end);+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QT_NO_TABLEVIEW+
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+
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#endif // QTABLEVIEW_P_H+
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