QString DesktopFile::getEnvVar(int pid)
{
QFile envFile(QString("/proc/%1/environ").arg(pid));
if(!envFile.open(QIODevice::ReadOnly | QIODevice::Text))
return "";
QTextStream in(&envFile);
QString content = in.readAll();
QRegExp rx("DESKTOP_FILE=(.+)");
int pos = rx.indexIn(content);
if (pos == -1)
return "";
return rx.cap(1);
}
Environment createHornEnvironment(unsigned int d, double eps)
{
std::ofstream envFile("environment.dat");
std::vector<Segment> env;
double w = 1. / (double)d, x = w, y = -eps, xN, yN, theta = 0.,
scale = w * (1. + boost::math::constants::pi<double>() * eps);
envFile << x << " " << y << std::endl;
for(unsigned int i = 0; i < d - 1; ++i)
{
theta += boost::math::constants::pi<double>() / (double) d;
xN = x + cos(theta) * scale;
yN = y + sin(theta) * scale;
env.emplace_back(x, y, xN, yN);
x = xN;
y = yN;
envFile << x << " " << y << std::endl;
}
theta = 0.;
x = w;
y = eps;
envFile << x << " " << y << std::endl;
scale = w * (1.0 - boost::math::constants::pi<double>() * eps);
for(unsigned int i = 0; i < d - 1; ++i)
{
theta += boost::math::constants::pi<double>() / d;
xN = x + cos(theta) * scale;
yN = y + sin(theta) * scale;
env.emplace_back(x, y, xN, yN);
x = xN;
y = yN;
envFile << x << " " << y << std::endl;
}
envFile.close();
return env;
}
void readEnvFile()
{
QFile envFile(QDir::homePath() + "/.cache/boomaga.env");
if (envFile.exists())
{
envFile.open(QFile::ReadOnly);
while (!envFile.atEnd())
{
QString line = QString::fromLocal8Bit(envFile.readLine());
QString name = line.section("=", 0, 0).trimmed();
QString value = line.section("=", 1).trimmed();
if ((value.startsWith('\'') && value.endsWith('\'')) ||
(value.startsWith('"') && value.endsWith('"')))
{
value = value.mid(1, value.length() - 2);
}
qputenv(name.toLocal8Bit(), value.toLocal8Bit());
}
envFile.close();
}
}