table_impl.hpp

Go to the documentation of this file.

/*
 * Copyright (c) 2012-2015:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#ifndef __H__TABLE_IMPL__
#define __H__TABLE_IMPL__
 
#include <iomanip>
#include <cassert>
#include "common/error.h"
#include "common/log.h"
#include "string_util.h"
 
namespace ug{
 
template <class T>
Table<T>::Table() :
  m_numRows(0),
  m_numCols(0)
{
  m_defaultColSeperator = ' ';
  m_defaultRowSeperator = ' ';
  m_defaultColAlignment = 'l';
}
 
template <class T>
Table<T>::Table(size_t numRows, size_t numCols) :
  m_numRows(0),
  m_numCols(0)
{
  m_defaultColSeperator = ' ';
  m_defaultRowSeperator = ' ';
  m_defaultColAlignment = 'l';
  add_rows(numRows);
  add_cols(numCols);
}
 
template <class T>
Table<T>::~Table()
{
  clear();
}
 
template <class T>
void Table<T>::clear()
{
  for(size_t i_row = 0; i_row < m_numRows; ++i_row){
    for(size_t i_col = 0; i_col < m_numCols; ++i_col){
      delete m_data[i_row][i_col];
    }
  }
  m_numRows = m_numCols = 0;
  m_data.clear();
}
 
template <class T>
void Table<T>::add_rows(size_t num)
{
  if(num > 0){
    size_t newSize = m_numRows + num;
    m_data.resize(newSize);
 
    if(m_numCols > 0){
      for(size_t i_row = m_numRows; i_row < newSize; ++i_row){
        m_data[i_row].resize(m_numCols);
        for(size_t i_col = 0; i_col < m_numCols; ++i_col)
          m_data[i_row][i_col] = new T;
      }
    }
    m_numRows = newSize;
  }
}
 
template <class T>
void Table<T>::add_cols(size_t num)
{
  if(num > 0){
    size_t newSize = m_numCols + num;
    for(size_t i_row = 0; i_row < m_numRows; ++i_row){
      m_data[i_row].resize(newSize);
      for(size_t i_col = m_numCols; i_col < newSize; ++i_col)
        m_data[i_row][i_col] = new T;
    }
    m_numCols = newSize;
  }
}
 
template <class T>
T& Table<T>::operator() (size_t rowInd, size_t colInd)
{
  if(rowInd >= num_rows())
    add_rows((rowInd + 1) - num_rows());
 
  if(colInd >= num_cols())
    add_cols((colInd + 1) - num_cols());
 
  return *m_data[rowInd][colInd];
}
 
template <class T>
const T& Table<T>::operator() (size_t rowInd, size_t colInd) const
{
  UG_COND_THROW(rowInd >= num_rows(), "Bad row index: " << rowInd << "! Only " << num_rows() << " rows exist.");
  UG_COND_THROW(colInd >= num_cols(), "Bad col index: " << colInd << "! Only " << num_cols() << " cols exist.");
  return *m_data[rowInd][colInd];
}
 
template <class T>
size_t Table<T>::num_rows() const
{
  return m_numRows;
}
 
template <class T>
size_t Table<T>::num_cols() const
{
  return m_numCols;
}
 
 
 
 
 
template <class T>
std::string Table<T>::to_string() const
{
  std::stringstream ssOut;
  ssOut << *this;
  return ssOut.str();
}
 
 
 
template<typename T>
std::string Table<T>::to_latex() const
{
  Table<std::string>  strTable(num_rows(), num_cols());
 
  std::stringstream os;
  os << "\\begin{table}\n\\centering\n";
  os << "\\begin{tabular}{";
  for(size_t i=0; i < num_cols(); i++)
    os << get_col_sep(i) << get_col_alignment(i);
  os << get_col_sep(num_cols());
  os << "}\n";
 
 
  for(size_t i_row = 0; i_row < num_rows(); ++i_row)
  {
    if(get_row_sep(i_row) != ' ')
      os << "\\hline \n";
 
    for(size_t i_col = 0; i_col < num_cols(); ++i_col)
    {
      if(i_col != 0) os << " & ";
      os << EntryToString(*this, i_row, i_col);
    }
 
    os << " \\\\\n";
  }
  if(get_row_sep(num_rows())  != ' ')
    os << "\\hline \n";
  os << "\\end{tabular}\n";
  os << "\\end{table}\n";
  return os.str();
}
 
 
template<typename T>
std::string Table<T>::to_csv(const char *seperator) const
{
  std::stringstream os;
  for(size_t i_row = 0; i_row < num_rows(); ++i_row)
  {
    for(size_t i_col = 0; i_col < num_cols(); ++i_col)
    {
      if(i_col != 0) os << " " << seperator << " ";
      os << EntryToString(*this, i_row, i_col);
    }
 
    os << "\n";
  }
  return os.str();
}
 
template <class T>
std::ostream& operator << (std::ostream& os, const Table<T>& table)
{
  return table.stream(os);
}
 
template <class T>
std::ostream& Table<T>::stream(std::ostream& os) const
{
  const Table<T> &table = *this;
//  we'll fill a fresh table with strings of the given table
//  At the same time we'll find the max-width of each column
  Table<std::string>  strTable(num_rows(), num_cols());
  std::vector<size_t> colSizes(num_cols(), 0);
 
  for(size_t i_row = 0; i_row < num_rows(); ++i_row){
    for(size_t i_col = 0; i_col < num_cols(); ++i_col){
      strTable(i_row, i_col) = EntryToString(table, i_row, i_col);
      colSizes[i_col] = std::max(colSizes[i_col], strTable(i_row, i_col).size());
    }
  }
 
  size_t totalRowLength=0;
  for(size_t i_col = 0; i_col < num_cols(); ++i_col)
  {
    totalRowLength++;
    totalRowLength += colSizes[i_col] + 2;
  }
  totalRowLength++;
 
//  now print each row
  for(size_t i_row = 0; i_row < num_rows(); ++i_row)
  {
    if(get_row_sep(i_row) != 0x00 && get_row_sep(i_row) != ' ')
      os << repeat(get_row_sep(i_row), totalRowLength) << "\n";
    for(size_t i_col = 0; i_col < num_cols(); ++i_col)
    {
      os << get_col_sep(i_col);
      size_t l = colSizes[i_col] + 1;
      size_t s = strTable(i_row, i_col).size();
      os << " ";
      if(get_col_alignment(i_col) == 'r')
        os << std::setw(l) << std::right << strTable(i_row, i_col);
      else if(get_col_alignment(i_col) == 'l')
        os << std::setw(l) << std::left << strTable(i_row, i_col);
      else
        os << repeat(' ', (l-s)/2) << std::setw(l-(l-s)/2) << std::left << strTable(i_row, i_col);
    }
    os << get_col_sep(num_cols()) << std::endl;
  }
  if(get_row_sep(num_cols()) != 0x00 && get_row_sep(num_cols()) != ' ')
    os << repeat(get_row_sep(num_cols()), totalRowLength) << "\n";
  return os;
}
 
 
 
 
template <class T>
inline
std::string EntryToString(const Table<T>& table, size_t rowInd, size_t colInd)
{
  std::stringstream ss;
  ss << table(rowInd, colInd);
  return ss.str();
}
 
 
inline
std::string EntryToString(const Table<std::string>& table,
              size_t rowInd, size_t colInd)
{
  return table(rowInd, colInd);
}
 
inline
std::string EntryToString(const Table<std::stringstream>& table,
              size_t rowInd, size_t colInd)
{
  return table(rowInd, colInd).str();
}
 
}// end of namespace
 
#endif