TablePrinter.cpp

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#include <TablePrinter.h>
#include <stdexcept>
#include <iomanip>
#include <stdexcept>
 
namespace bprinter
{
TablePrinter::TablePrinter(std::ostream * output, const std::string& separator)
{
  out_stream_ = output;
  i_ = 0;
  j_ = 0;
  separator_ = separator;
}
 
TablePrinter::~TablePrinter()
{
 
}
 
int TablePrinter::get_num_columns() const
{
  return (int)column_headers_.size();
}
 
void TablePrinter::set_separator(const std::string& separator)
{
  separator_ = separator;
}
 
void TablePrinter::set_flush_left()
{
  flush_left_ = true;
}
 
void TablePrinter::set_flush_right()
{
  flush_left_ = false;
}
 
/** \brief Add a column to our table
 **
 ** \param header_name Name to be print for the header
 ** \param column_width the width of the column (has to be >=5)
 ** */
void TablePrinter::AddColumn(const std::string& header_name, int column_width)
{
  if (column_width < 4)
    {
      throw std::invalid_argument("Column size has to be >= 4");
    }
 
  column_headers_.push_back(header_name);
  column_widths_.push_back(column_width);
}
 
void TablePrinter::PrintHorizontalLine(int updown)
{
  *out_stream_ << (updown > 0 ? "┌" : updown < 0 ? "└" : "├"); // the left bar
 
  for (int i = 0; i < (int) column_widths_.size(); i++)
    for (int j = 0; j < column_widths_[i]; j++)
      *out_stream_ << (!i || j ? "─" : updown > 0 ? "┬─" : updown < 0 ? "┴─" : "┼─");
 
  *out_stream_ << (updown > 0 ? "┐" : updown < 0 ? "┘" : "┤"); // the right bar
  *out_stream_ << "\n";
}
 
void TablePrinter::PrintHeader()
{
  PrintHorizontalLine(1);
  *out_stream_ << "│";
 
  for (int i=0; i<get_num_columns(); ++i)
    {
 
      if(flush_left_)
        *out_stream_ << std::left;
      else
        *out_stream_ << std::right;
 
      *out_stream_ << std::setw(column_widths_.at(i)) << column_headers_.at(i).substr(0, column_widths_.at(i));
      if (i != get_num_columns()-1)
        {
          *out_stream_ << separator_;
        }
    }
 
  *out_stream_ << "│\n";
  PrintHorizontalLine();
}
 
void TablePrinter::PrintFooter()
{
  PrintHorizontalLine(-1);
}
 
TablePrinter& TablePrinter::operator<<(float input)
{
  OutputDecimalNumber<float>(input);
  return *this;
}
 
TablePrinter& TablePrinter::operator<<(double input)
{
  OutputDecimalNumber<double>(input);
  return *this;
}
 
}