/* This file is part of the KOffice project
   Copyright (C) 2002 Werner Trobin <trobin@kde.org>
   Copyright (C) 2002 David Faure <faure@kde.org>

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public
   License version 2 as published by the Free Software Foundation.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#ifndef TABLEHANDLER_H
#define TABLEHANDLER_H

#include <wv2/functor.h>
#include <wv2/word97_generated.h> // for TAP
#include <wv2/handlers.h>
#include <tqstring.h>
#include <tqvaluelist.h>
#include <tqobject.h>
#include <deque>

namespace wvWare {
    namespace Word97 {
        class TC;
        class SHD;
    }
}
class KoRect;

namespace KWord
{
    typedef const wvWare::TableRowFunctor* TableRowFunctorPtr;
    typedef wvWare::SharedPtr<const wvWare::Word97::TAP> TAPptr;

    // Data for a given row table. This struct is used by the Table struct.
    struct Row
    {
        Row() : functorPtr( 0L ), tap( 0L )  {} // TQValueList wants that one
        Row( TableRowFunctorPtr ptr, TAPptr _tap ) : functorPtr(ptr), tap(_tap) {}
        ~Row() {}

        // Each row has: a functor to call to parse it and a TAP (table row properties)
        TableRowFunctorPtr functorPtr;
        TAPptr tap;
    };

    // Data for a given table, stored between the 'tableRowFound' callback
    // during text parsing and the final generation of table cells.
    struct Table
    {
        TQString name; // kword's grpMgr attribute
        TQValueList<Row> rows; // need to use TQValueList to benefit from implicit sharing

        // Word has a very flexible concept of columns: each row can vary the
        // edges of each column. We must map this onto a set of fixed-width columns
        // by defining columns on each edge, and then using joined cells to model
        // the original Word cells. We accumulate all the known edges for a given
        // table in an array.
        // Important: don't use unsigned int. Value can be negative (relative to margin...).
        TQMemArray<int> m_cellEdges;

        void cacheCellEdge( int cellEdge );
        int columnNumber( int cellEdge ) const;
    };
}

class KWordTableHandler : public TQObject, public wvWare::TableHandler
{
    TQ_OBJECT
  
public:
    KWordTableHandler();

    //////// TableHandler interface
    virtual void tableRowStart( wvWare::SharedPtr<const wvWare::Word97::TAP> tap );
    virtual void tableRowEnd();
    virtual void tableCellStart();
    virtual void tableCellEnd();

    ///////// Our own interface
    void tableStart( KWord::Table* table );
    void tableEnd();

signals:
    // Tells Document to create frameset for cell
    void sigTableCellStart( int row, int column, int rowSpan, int columnSpan, const KoRect& cellRect, const TQString& tableName, const wvWare::Word97::BRC& brcTop, const wvWare::Word97::BRC& brcBottom, const wvWare::Word97::BRC& brcLeft, const wvWare::Word97::BRC& brcRight, const wvWare::Word97::SHD& shd );
    void sigTableCellEnd();

protected:
    double rowHeight() const;

private:
    KWord::Table* m_currentTable;
    int m_row;
    int m_column;
    double m_currentY;
    wvWare::SharedPtr<const wvWare::Word97::TAP> m_tap;
};

#endif // TABLEHANDLER_H