From 55099ecbdd540fa4483a11f143e9852fd8af5c76 Mon Sep 17 00:00:00 2001
From: Thomas Jentzsch <tjentzsch@yahoo.de>
Date: Sat, 18 Mar 2023 21:06:06 +0100
Subject: [PATCH] trying to address #962 for Linus & MacOS

---
 src/common/main.cxx      |  1 +
 src/emucore/Settings.cxx | 49 +++++++++++++++++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/src/common/main.cxx b/src/common/main.cxx
index 78bf0d027..66f081388 100644
--- a/src/common/main.cxx
+++ b/src/common/main.cxx
@@ -170,6 +170,7 @@ void attachConsole()
   AttachConsole(ATTACH_PARENT_PROCESS);
   FILE* fDummy;
   freopen_s(&fDummy, "CONOUT$", "w", stdout);
+  //freopen_s(&fDummy, "CONIN$", "r", stdin); // doesn't work as expected
 
   // Windows displays a new prompt immediately after starting the app.
   // This code tries to hide it before the new output is generated.
diff --git a/src/emucore/Settings.cxx b/src/emucore/Settings.cxx
index 307ae6a72..125eadfd3 100644
--- a/src/emucore/Settings.cxx
+++ b/src/emucore/Settings.cxx
@@ -16,7 +16,6 @@
 //============================================================================
 
 #include "bspf.hxx"
-
 #include "OSystem.hxx"
 #include "Version.hxx"
 #include "Logger.hxx"
@@ -33,6 +32,16 @@
   #include "DebuggerDialog.hxx"
 #endif
 
+//#if defined(BSPF_WINDOWS)
+//#include <windows.hxx>
+//#endif
+
+#if defined(BSPF_UNIX) || defined(BSPF_MACOS)
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <unistd.h>
+#endif
+
 #include "Settings.hxx"
 #include "repository/KeyValueRepositoryNoop.hxx"
 
@@ -481,7 +490,8 @@ void Settings::validate()
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 void Settings::usage()
 {
-  cout << endl
+  stringstream buf;
+  buf << endl
     << "Stella version " << STELLA_VERSION << endl
     << endl
     << "Usage: stella [options ...] romfile" << endl
@@ -807,7 +817,40 @@ void Settings::usage()
     << "  -dev.tia.delaybkcolor  <1|0>      Enable extra delay cycle for background color\n"
     << "  -dev.tia.delayplswap   <1|0>      Enable extra delay cycle for VDELP0/1 swap\n"
     << "  -dev.tia.delayblswap   <1|0>      Enable extra delay cycle for VDELBL swap\n"
-    << endl << std::flush;
+    << endl;
+
+#ifdef BSPF_WINDOWS
+//  int height = 25;
+//  CONSOLE_SCREEN_BUFFER_INFO csbi;
+//
+//  if(NULL != GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
+//    height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
+  cout << buf.str() << std::flush;
+#endif
+
+#if defined(BSPF_UNIX) || defined(BSPF_MACOS)
+  int height = 25;
+  struct winsize ws;
+
+  ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
+
+  height = ws.ws_row;
+
+  int row = 0;
+  while(buf.good())
+  {
+    if(++row == height - 1)
+    {
+      row = 0;
+      cout << "Press \"Enter\"" << std::flush;
+      getchar();
+      cout << endl;
+    }
+    string substr;
+    getline(buf, substr, '\n');
+    cout << substr << endl;
+  }
+#endif
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -