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Janik Zikovsky
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#include "MantidAPI/ProgressText.h"
#include "MantidKernel/System.h"
#include <iostream>
#include <fstream>
#include <iomanip>
namespace Mantid
{
namespace API
{
//----------------------------------------------------------------------------------------------
/** Constructor
*
* @param start :: float, fraction at the 0th step
* @param end :: float, fraction at the last steps
* @param nsteps :: number of (integer) steps to take between start and end
* @param newLines :: put each report on a new line.
* Otherwise, the report gets updated on the same line with stars. A new line occurs at destruction.
* @return
*/
ProgressText::ProgressText(double start, double end, int nsteps, bool newLines)
: m_newLines(newLines), m_lastMsgLength(0)
{
this->m_start = start;
this->m_end = end;
this->setNumSteps(nsteps);
}
//----------------------------------------------------------------------------------------------
/** Destructor
*/
ProgressText::~ProgressText()
{
if (!m_newLines)
std::cout << std::endl;
}
//----------------------------------------------------------------------------------------------
/** Increment loop counter by one then report progress, as text.
*
* @param msg :: optional text message to add
*/
void ProgressText::report(const std::string & msg)
{
// Did we increase enough to notify?
if ((++m_i - m_last_reported) < m_notifyStep ) return;
double p = m_start + m_step*(m_i - m_ifirst);
if (p > m_end) p = m_end;
// Print out
int pct = (p * 100);
// Return at the start of the line if not doing new lines
if (!m_newLines)
std::cout << "\r";
// Put a line of up to 40 *; spaces otherwise.
for (int i=0; i < 40; i++)
std::cout << ((i*2.5 < pct) ? "*" : " ");
std::cout << " " << std::setw(3) << pct << " % " << msg;
if (!m_newLines)
{
// Overwrite the rest of the last message
for (size_t i=msg.size(); i<m_lastMsgLength; i++)
std::cout << " ";
// Update the console
std::cout.flush();
}
else
std::cout << std::endl;
m_lastMsgLength = msg.size();
// Save where we last reported to avoid notifying too often.
this->m_last_reported = m_i;
}
} // namespace Mantid
} // namespace API