搭建PVB架构，实现前端的基础布局、菜单、表格、图示等功能

libs/pvb/include/rllib/rlspreadsheet.h

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+/***************************************************************************
+                          rlspreadsheet.h  -  description
+                             -------------------
+    begin                : Tue Jan 02 2001
+    copyright            : (C) 2001 by R. Lehrig
+    email                : lehrig@t-online.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as        *
+ *   published by the Free Software Foundation                             *
+ *                                                                         *
+ ***************************************************************************/
+#ifndef _RL_SPREADSHEET_H_
+#define _RL_SPREADSHEET_H_
+
+#include "rldefine.h"
+
+/*! <pre>
+A cell of a spreadsheet.
+</pre> */
+class rlSpreadsheetCell
+{
+public:
+  rlSpreadsheetCell(const char *text=0);
+  virtual ~rlSpreadsheetCell();
+  const char *text();
+  void setText(const char *text);
+  int  printf(const char *format, ...);
+  void clear();
+  void setNextCell(rlSpreadsheetCell *next);
+  rlSpreadsheetCell *getNextCell();
+  int  exists();
+private:
+  char *txt;
+  rlSpreadsheetCell *nextCell;
+};
+
+/*! <pre>
+A row within a spreadsheet.
+</pre> */
+class rlSpreadsheetRow
+{
+public:
+  //! column = 1...N
+  rlSpreadsheetRow();
+  virtual ~rlSpreadsheetRow();
+  const char *text(int column);
+  void setText(int column, const char *text);
+  int  printf(int column, const char *format, ...);
+  void clear();
+  void setNextRow(rlSpreadsheetRow *next);
+  rlSpreadsheetRow *getNextRow();
+  rlSpreadsheetCell *getFirstCell();
+  void readRow(const unsigned char *line, char delimitor='\t');
+  void writeRow(void *fp, char delimitor='\t');
+  int  exists(int column);
+private:
+  rlSpreadsheetCell *firstCell;
+  rlSpreadsheetRow  *nextRow;
+};
+
+/*! <pre>
+A spreadsheet Table.
+The class works with CSV files.
+</pre> */
+class rlSpreadsheetTable
+{
+public:
+  //! column = 1...N, row = 1...N
+  rlSpreadsheetTable(char delimitor='\t');
+  virtual ~rlSpreadsheetTable();
+  const char *text(int column, int row);
+  void setText(int column, int row, const char *text);
+  int  printf(int column, int row, const char *format, ...);
+  void clear();
+  int  read(const char *filename);
+  int  write(const char *filename);
+  void setNextTable(rlSpreadsheetTable *next);
+  rlSpreadsheetTable *getNextTable();
+  rlSpreadsheetRow *getFirstRow();
+  int  exists(int column, int row);
+  void setDelimitor(char delimitor);
+private:
+  char delimitor;
+  rlSpreadsheetRow   *firstRow;
+  rlSpreadsheetTable *nextTable;
+};
+
+/*! <pre>
+A series of spreadsheet tables.
+The class works with CSV files.
+</pre> */
+class rlSpreadsheetWorkbook
+{
+public:
+  //! column = 1...N, row = 1...N, page = 1...N
+  rlSpreadsheetWorkbook(char delimitor='\t');
+  virtual ~rlSpreadsheetWorkbook();
+  const char *text(int column, int row, int page);
+  void setText(int column, int row, int page, const char *text);
+  int  printf(int column, int row, int page, const char *format, ...);
+  void clear();
+  int  read(const char *filename);
+  int  write(const char *filename);
+  int  exists(int column, int row, int page);
+  rlSpreadsheetTable *getFirstTable();
+  void setDelimitor(char delimitor);
+private:
+  char delimitor;
+  rlSpreadsheetTable *firstTable;
+};
+
+#endif