From 854e95fb82e0fef6df13a23602bee64e22558308 Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike@mdlowis.com>
Date: Fri, 19 Jan 2018 21:22:58 -0500
Subject: [PATCH] can now move cursor around by clicking

---
 edit.ml     | 5 ++---
 lib/buf.ml  | 3 +++
 lib/buf.mli | 1 +
 lib/view.ml | 8 ++++++++
 4 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/edit.ml b/edit.ml
index ff6a713..1c101da 100644
--- a/edit.ml
+++ b/edit.ml
@@ -16,9 +16,8 @@ let scroll_dn () =
 (* Mouse Actions
  ******************************************************************************)
 let onselect mods x y nclicks =
-  let sx,sy = !edit_view.pos and w,h = !edit_view.dim in
-  Printf.printf "select (%d,%d) %d" x y nclicks;
-  print_endline ""
+  let pos = (View.get_at !edit_view x y) in
+  edit_view := View.select !edit_view pos pos
 
 let onexec mods x y nclicks =
   Printf.printf "exec (%d,%d) %d" x y nclicks;
diff --git a/lib/buf.ml b/lib/buf.ml
index 4d80e14..39f1cba 100644
--- a/lib/buf.ml
+++ b/lib/buf.ml
@@ -136,6 +136,9 @@ let make_lexer buf =
       !count)
   })
 
+let select buf start stop =
+  { buf with cursor = Cursor.make buf start }
+
 (*
   let clone csr =
     { start = csr.start; stop = csr.stop }
diff --git a/lib/buf.mli b/lib/buf.mli
index db12bf0..74c7823 100644
--- a/lib/buf.mli
+++ b/lib/buf.mli
@@ -22,6 +22,7 @@ val iter : (int -> bool) -> t -> int -> unit
 val csrpos : t -> int
 val selected : t -> int -> bool
 val make_lexer : t -> Colormap.lexer
+val select : t -> int -> int -> t
 
 val nextln : t -> int -> int
 val prevln : t -> int -> int
diff --git a/lib/view.ml b/lib/view.ml
index 08c1070..c1e2dda 100644
--- a/lib/view.ml
+++ b/lib/view.ml
@@ -21,6 +21,14 @@ let empty width height =
 let make width height path =
   from_buffer (Buf.load path) width height
 
+let get_at view x y =
+  let sx,sy = view.pos and w,h = view.dim in
+  try List.nth view.lines ((h - (y + 2)) / Draw.font.height)
+  with Failure _ -> Buf.length view.buf
+
+let select view start stop =
+  { view with buf = Buf.select view.buf start stop }
+
 let path view =
   Buf.path view.buf
 
-- 
2.52.0