From b93c4adf0c9573e8e94252f2e7f6f2675c7a557e Mon Sep 17 00:00:00 2001
From: Evan Miller <emmiller@gmail.com>
Date: Sun, 15 Jan 2023 10:54:23 -0500
Subject: [PATCH] Tumble support

---
 src/job.cc  | 4 +++-
 src/job.h   | 2 ++
 src/main.cc | 1 +
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/job.cc b/src/job.cc
index fa6fb43..3321ab9 100644
--- a/src/job.cc
+++ b/src/job.cc
@@ -78,8 +78,10 @@ void job::write_page_header() {
   fputs("\033E", out_);
   fprintf(out_, "\033&l%dX", std::max(1, page_params_.num_copies));
 
-  if (page_params_.duplex) {
+  if (page_params_.duplex && page_params_.tumble) {
     fputs("\033&l2S", out_);
+  } else if (page_params_.duplex) {
+    fputs("\033&l1S", out_);
   } else {
     fputs("\033&l0S", out_);
   }
diff --git a/src/job.h b/src/job.h
index bd7a83b..0c0442c 100644
--- a/src/job.h
+++ b/src/job.h
@@ -27,6 +27,7 @@ struct page_params {
   int num_copies;
   int resolution;
   bool duplex;
+  bool tumble;
   bool economode;
   std::string sourcetray;
   std::string mediatype;
@@ -36,6 +37,7 @@ struct page_params {
     return num_copies == o.num_copies
       && resolution == o.resolution
       && duplex == o.duplex
+      && tumble == o.tumble
       && economode == o.economode
       && sourcetray == o.sourcetray
       && mediatype == o.mediatype
diff --git a/src/main.cc b/src/main.cc
index d6232b4..abe0528 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -111,6 +111,7 @@ page_params build_page_params(const cups_page_header2_t &header) {
   p.economode = header.cupsInteger[10];
   p.mediatype = header.MediaType;
   p.duplex = header.Duplex;
+  p.tumble = header.Tumble;
 
   if (header.MediaPosition < sources.size())
     p.sourcetray = sources[header.MediaPosition];