WPXTable.h
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00001 /* libwpd
00002  * Copyright (C) 2002 William Lachance (wrlach@gmail.com)
00003  * Copyright (C) 2002 Marc Maurer (uwog@uwog.net)
00004  *  
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public
00016  * License along with this library; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
00018  *
00019  * For further information visit http://libwpd.sourceforge.net
00020  */
00021 
00022 /* "This product is not manufactured, approved, or supported by 
00023  * Corel Corporation or Corel Corporation Limited."
00024  */
00025 
00026 // WPXTable: an intermediate representation of a table, designed to be created
00027 // "ahead of time". unlike wordperfect's table definition messages, this representation
00028 // is _consistent_: we can always count on the messages being sent using this representation
00029 // (once it is created and finalized) to be reliable (assuming no bugs in this code!) :-) 
00030 //
00031 // example situation where this might be useful: WordPerfect allows two cells, 
00032 // side by side, one with border, one without-- creating a false ambiguity (none 
00033 // actually exists: if one cell does not have a border, the other doesn't either) 
00034 
00035 #ifndef _WPXTABLE_H
00036 #define _WPXTABLE_H
00037 #include <stddef.h>
00038 #include <vector>
00039 #include "libwpd_types.h"
00040 
00041 typedef struct _WPXTableCell WPXTableCell;
00042 
00043 struct _WPXTableCell
00044 {
00045         _WPXTableCell(uint8_t colSpan, uint8_t rowSpan, uint8_t borderBits);
00046         uint8_t m_colSpan;
00047         uint8_t m_rowSpan;
00048         uint8_t m_borderBits;
00049 };
00050 
00051 class WPXTable
00052 {
00053 public:
00054         WPXTable() : m_tableRows() {}
00055         ~WPXTable();
00056         void insertRow();
00057         void insertCell(uint8_t colSpan, uint8_t rowSpan, uint8_t borderBits);
00058         const WPXTableCell*  getCell(int i, int j) { return (m_tableRows[i])[j]; }
00059         void makeBordersConsistent();
00060         void _makeCellBordersConsistent(WPXTableCell *cell, std::vector<WPXTableCell *> &adjacentCells, 
00061                                       int adjacencyBitCell, int adjacencyBitBoundCells);
00062         std::vector<WPXTableCell *>  _getCellsBottomAdjacent(int i, int j);
00063         std::vector<WPXTableCell *>  _getCellsRightAdjacent(int i, int j);
00064 
00065         const std::vector< std::vector<WPXTableCell *> >& getRows() const { return m_tableRows; }
00066         const bool isEmpty() const { return m_tableRows.size() == 0; }
00067 
00068 private:
00069         std::vector< std::vector<WPXTableCell *> > m_tableRows;
00070 };
00071 
00072 class WPXTableList
00073 {
00074 public:
00075         WPXTableList();
00076         WPXTableList(const WPXTableList &);
00077         WPXTableList & operator=(const WPXTableList & tableList);
00078         virtual ~WPXTableList();
00079 
00080         WPXTable * operator[](size_t i) { return (*m_tableList)[i]; }
00081         void add(WPXTable *table) { m_tableList->push_back(table); }
00082 
00083 private:
00084         void release(); 
00085         void acquire(int *refCount, std::vector<WPXTable *> *tableList);
00086         int * getRef() const { return m_refCount; }
00087         std::vector<WPXTable *> * get() const { return m_tableList; }
00088 
00089         std::vector<WPXTable *> *m_tableList; 
00090         int *m_refCount;
00091 };
00092 #endif /* _WPXTABLE_H */