/*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*
* URL: https://github.com/martinruenz/gnuplot-cpp
* AUTHOR: Martin Rünz, 2015
*/
#pragma once
#include
#include
#include
#include
#include
#if defined(_MSC_VER) || defined(_WIN32)
#include
#define _MR_GPCPP_POPEN _popen
#define _MR_GPCPP_PCLOSE _pclose
#else
#define _MR_GPCPP_POPEN popen
#define _MR_GPCPP_PCLOSE pclose
#endif
class GnuplotPipe {
public:
inline GnuplotPipe(bool persist = true) {
std::cout << "Opening gnuplot... ";
pipe = _MR_GPCPP_POPEN(persist ? "gnuplot -persist" : "gnuplot", "w");
if (!pipe)
std::cout << "failed!" << std::endl;
else
std::cout << "succeded." << std::endl;
}
inline virtual ~GnuplotPipe() {
if (pipe) _MR_GPCPP_PCLOSE(pipe);
}
void sendLine(const std::string& text, bool useBuffer = false) {
if (!pipe) return;
if (useBuffer)
buffer.push_back(text + "\n");
else
fputs((text + "\n").c_str(), pipe);
}
void sendEndOfData(unsigned repeatBuffer = 1) {
if (!pipe) return;
for (unsigned i = 0; i < repeatBuffer; i++) {
for (auto& line : buffer) fputs(line.c_str(), pipe);
fputs("e\n", pipe);
}
fflush(pipe);
buffer.clear();
}
void sendNewDataBlock() {
sendLine("\n", !buffer.empty());
}
void writeBufferToFile(const std::string& fileName) {
std::ofstream fileOut(fileName);
for (auto& line : buffer) fileOut << line;
fileOut.close();
}
private:
GnuplotPipe(GnuplotPipe const&) = delete;
void operator=(GnuplotPipe const&) = delete;
FILE* pipe;
std::vector buffer;
};
#undef _MR_GPCPP_POPEN
#undef _MR_GPCPP_PCLOSE