From 12ee4ea7e8946535709715f4d6f1515fcd0e39b2 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Wed, 11 May 2022 10:11:30 -0700
Subject: [PATCH] set top and bottom margins full hookup

---
 src/Window.zig          | 4 ++++
 src/terminal/stream.zig | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/src/Window.zig b/src/Window.zig
index c1f8f2484..79f865de3 100644
--- a/src/Window.zig
+++ b/src/Window.zig
@@ -565,6 +565,10 @@ pub fn reverseIndex(self: *Window) !void {
     try self.terminal.reverseIndex(self.alloc);
 }
 
+pub fn setTopAndBottomMargin(self: *Window, top: u16, bot: u16) !void {
+    self.terminal.setScrollingRegion(top, bot);
+}
+
 pub fn setMode(self: *Window, mode: terminal.Mode, enabled: bool) !void {
     switch (mode) {
         .origin => {
diff --git a/src/terminal/stream.zig b/src/terminal/stream.zig
index 321bc58ac..0268ada8f 100644
--- a/src/terminal/stream.zig
+++ b/src/terminal/stream.zig
@@ -258,6 +258,15 @@ pub fn Stream(comptime Handler: type) type {
                     }
                 } else log.warn("unimplemented CSI callback: {}", .{action}),
 
+                // DECSTBM - Set Top and Bottom Margins
+                // TODO: test
+                'r' => if (@hasDecl(T, "setTopAndBottomMargin")) switch (action.params.len) {
+                    0 => try self.handler.setTopAndBottomMargin(1, 0),
+                    1 => try self.handler.setTopAndBottomMargin(action.params[0], 0),
+                    2 => try self.handler.setTopAndBottomMargin(action.params[0], action.params[1]),
+                    else => log.warn("invalid DECSTBM command: {}", .{action}),
+                } else log.warn("unimplemented CSI callback: {}", .{action}),
+
                 else => if (@hasDecl(T, "csiUnimplemented"))
                     try self.handler.csiUnimplemented(action)
                 else