bool WinFrame::ExecExpr(const std::string& expr) { /* If expression is empty -> show information */ if (expr.empty()) ShowIntro(); else if (expr == "exit") { /* Clear input to avoid storing "exit" in the config-file */ SetInput(""); Close(); } else if (expr == "demo") ShowDemo(); else if (expr == "const") ShowConstants(); else if (expr == "clear") { constantsSet_.constants.clear(); constantsSet_.ResetStd(); ShowConstants(); } else { /* Setup compute mode */ Ac::ComputeMode mode; mode.degree = GetOptionDegree(); /* Show status message */ SetOutput("computing ..."); #ifdef AC_MULTI_THREADED /* Wait until previous thread has successfully terminated */ if (computing_) return false; JoinThread(); #endif /* Compute expression */ #ifdef AC_MULTI_THREADED computing_ = true; thread_ = std::unique_ptr<std::thread>(new std::thread(&WinFrame::ComputeThreadProc, this, expr, mode)); #else ComputeThreadProc(expr.ToStdString(), mode); #endif } return true; }