From 74b18ff8b3dc8ea4fff2cb6edd37396fa12c6a72 Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike@mdlowis.com>
Date: Sun, 18 Feb 2018 15:08:54 -0500
Subject: [PATCH] eliminated status region in favor of acme dual-region
 approach

---
 deftags      |  1 +
 edit.ml      | 10 ++++++----
 lib/draw.ml  | 44 ++++++++++++++++----------------------------
 lib/draw.mli | 22 ++++++----------------
 lib/view.ml  |  6 +++---
 5 files changed, 32 insertions(+), 51 deletions(-)
 create mode 100644 deftags

diff --git a/deftags b/deftags
new file mode 100644
index 0000000..5488f64
--- /dev/null
+++ b/deftags
@@ -0,0 +1 @@
+UNSI>* edit.ml | Quit Save Undo Redo Cut Copy Paste | Find
diff --git a/edit.ml b/edit.ml
index a95045b..d7e0e84 100644
--- a/edit.ml
+++ b/edit.ml
@@ -1,7 +1,7 @@
 open X11
 
-let tags_buf = ref Buf.empty
 let edit_view = ref (View.empty 640 480)
+let tags_view = ref (View.empty 640 480)
 
 let scroll_up () =
   for i = 1 to 4 do
@@ -58,12 +58,13 @@ let onmousemove mods x y =
 
 let onupdate width height =
   let csr = Draw.Cursor.make (width, height) 0 0 in
-  Draw.status csr (View.path !edit_view);
-  Draw.tags csr !tags_buf;
+  tags_view := View.draw !tags_view csr;
+  Draw.hrule csr.width csr;
   let scrollcsr = (Draw.Cursor.clone csr) in
   Draw.Cursor.move_x csr 15;
   edit_view := View.draw !edit_view csr;
-  Draw.scroll scrollcsr (View.scroll_params !edit_view)
+  Draw.scroll scrollcsr (View.scroll_params !edit_view);
+  ()
 
 let onshutdown () =
   shutdown ()
@@ -91,6 +92,7 @@ let onevent evnt =
  ******************************************************************************)
 let () =
   Printexc.record_backtrace true;
+  tags_view := View.make 640 480 "deftags";
   if Array.length Sys.argv > 1 then
     edit_view := View.make 640 480 Sys.argv.(1);
   let win = make_window 640 480 in
diff --git a/lib/draw.ml b/lib/draw.ml
index 5d80ed2..f61ea0a 100644
--- a/lib/draw.ml
+++ b/lib/draw.ml
@@ -8,10 +8,10 @@ let glyph_width g = X11.(g.xoff)
 
 module Cursor = struct
   type t = {
-    height : int;
-    width : int;
-    startx : int;
-    starty : int;
+    mutable height : int;
+    mutable width : int;
+    mutable startx : int;
+    mutable starty : int;
     mutable x: int;
     mutable y: int
   }
@@ -39,11 +39,19 @@ module Cursor = struct
     (csr.width - csr.x)
 
   let restart csr x y =
-    let csr = { csr with startx = csr.x + x; starty = csr.y + y } in
+    csr.startx <- csr.x + x;
+    csr.starty <- csr.y + y;
     csr.x <- csr.startx;
     csr.y <- csr.starty;
     csr
 
+  let reanchor csr xoff yoff =
+    csr.x <- csr.x + xoff;
+    csr.y <- csr.y + yoff;
+    csr.startx <- csr.x + xoff;
+    csr.starty <- csr.y + yoff;
+    ()
+
   let next_line csr =
     csr.x <- csr.startx;
     csr.y <- csr.y + font_height
@@ -108,10 +116,6 @@ let light_bkg = rectangle Cfg.Color.palette.(1)
 let rule_bkg = rectangle Cfg.Color.palette.(3)
 let draw_cursor = rectangle Cfg.Color.palette.(6) 1 font_height
 
-let string text csr =
-  X11.draw_string font Cfg.Color.palette.(5) text (csr.x + 2, csr.y);
-  csr.y <- csr.y + 2 + font_height
-
 let hrule width csr =
   rule_bkg width 1 csr;
   csr.y <- csr.y + 1
@@ -123,12 +127,12 @@ let vrule height csr =
 let make_line_array lines nlines =
   let lines = (Array.of_list (List.rev !lines)) in
   let line_ary = (Array.make nlines (-1)) in
-  Array.blit lines 0 line_ary 0;
+  Array.blit lines 0 line_ary 0 (Array.length lines);
   lines
 
 let buffer csr buf clr off =
   let height = (csr.height - csr.y) in
-  dark_bkg (csr.width - csr.x) height csr;
+  (if csr.y == 0 then light_bkg else dark_bkg) (csr.width - csr.x) height csr;
   csr.y <- csr.y + 2;
   let nlines = ((height -2) / font_height) in
   let num = ref 0 and csr = (restart csr 2 0)
@@ -145,20 +149,9 @@ let buffer csr buf clr off =
   in
   Buf.iter draw_rune buf off;
   List.iter X11.draw_rect !boxes; (* draw selection boxes *)
+  reanchor csr (-2) 2;
   (!num, (make_line_array lines nlines))
 
-let status csr str =
-  dark_bkg csr.width (4 + font_height) csr;
-  string str csr;
-  hrule csr.width csr
-
-let tags csr buf =
-  let maxlns = (csr.height / font_height / 4) in
-  let height = ((font_height * maxlns) + 4) in
-  light_bkg csr.width height csr;
-  string "Quit Save Undo Redo Cut Copy Paste | Find " csr;
-  hrule csr.width csr
-
 let scroll csr params =
   let start, pct = params and height = float_of_int (csr.height - csr.y) in
   let thumbsz = (height *. pct) and thumboff = (height *. start) in
@@ -168,8 +161,3 @@ let scroll csr params =
   dark_bkg 14 (int_of_float (max thumbsz 5.0)) mcsr;
   csr.x <- csr.x + 14;
   vrule csr.height csr
-
-let edit csr buf clr =
-  dark_bkg (csr.width - csr.x) (csr.height - csr.y) csr;
-  let nchars = buffer csr buf clr in
-  nchars
diff --git a/lib/draw.mli b/lib/draw.mli
index ff613ca..1041bc6 100644
--- a/lib/draw.mli
+++ b/lib/draw.mli
@@ -1,24 +1,19 @@
 module Cursor : sig
   type t = {
-    height : int;
-    width : int;
-    startx : int;
-    starty : int;
+    mutable height : int;
+    mutable width : int;
+    mutable startx : int;
+    mutable starty : int;
     mutable x: int;
     mutable y: int
   }
+
   val make : (int * int) -> int -> int -> t
   val clone : t -> t
   val pos : t -> (int * int)
   val dim : t -> (int * int)
   val move_x : t -> int -> unit
   val max_width : t -> int
-(*
-  val restart : t -> int -> int -> t
-  val next_line : t -> unit
-  val has_next_line : t -> bool
-  val draw_glyph : t -> int -> int -> unit
-*)
   val next_glyph : t -> int -> bool
 end
 
@@ -30,12 +25,7 @@ val light_bkg : int -> int -> Cursor.t -> unit
 val rule_bkg : int -> int -> Cursor.t -> unit
 
 val buffer : Cursor.t -> Buf.t -> Colormap.t -> int -> (int * int array)
+val scroll : Cursor.t -> (float * float) -> unit
 
-val string : string -> Cursor.t -> unit
 val hrule : int -> Cursor.t -> unit
 val vrule : int -> Cursor.t -> unit
-
-val status : Cursor.t -> string -> unit
-val tags : Cursor.t -> Buf.t -> unit
-val scroll : Cursor.t -> (float * float) -> unit
-val edit : Cursor.t -> Buf.t -> Colormap.t -> int -> (int * int array)
diff --git a/lib/view.ml b/lib/view.ml
index 6dad1dc..2dcbdfb 100644
--- a/lib/view.ml
+++ b/lib/view.ml
@@ -76,12 +76,12 @@ let resize view width =
 let draw view csr =
   let view = (resize view (Draw.Cursor.max_width csr)) in
   let newcsr = (Draw.Cursor.clone csr) in
-  let num, lines = Draw.buffer newcsr view.buf view.clr (Scrollmap.first view.map) in
+  let num, lines = Draw.buffer csr view.buf view.clr (Scrollmap.first view.map) in
   { view with
     num = num;
     lines = lines;
-    pos = Draw.Cursor.pos csr;
-    dim = Draw.Cursor.dim csr }
+    pos = Draw.Cursor.pos newcsr;
+    dim = Draw.Cursor.dim newcsr }
 
 let scroll_up view =
   { view with map = Scrollmap.scroll_up view.map view.buf }
-- 
2.51.0