From 7aaaabc47fefda46328bcc4e8a84e4b1e22c3bcc Mon Sep 17 00:00:00 2001
From: Ryos Suzuki <ryos@sinby.com>
Date: Mon, 3 Oct 2022 15:46:43 +0900
Subject: [PATCH] Fix a bug: under vflip and compact mode.

---
 lib/render.js | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

diff --git a/lib/render.js b/lib/render.js
index 81ad021..f1dae62 100644
--- a/lib/render.js
+++ b/lib/render.js
@@ -202,14 +202,27 @@ const compactLabels = (desc, opt) => {
 
   const mask = getLabelMask(desc, mod);
 
-  for (let i = 0; i < mod; i++) {
-    const idx = vflip ? i : (mod - i - 1);
-    if (mask[idx]) {
-      labels.push(text(
-        idx,
-        step * (i + .5),
-        0.5 * fontsize + 4
-      ));
+  if (opt.compact) {
+    let a = [0, mod-1];
+
+    a.map(i => {
+      const idx = vflip ? i : (mod - i - 1);
+    labels.push(text(
+      idx,
+      step * (i + .5),
+      0.5 * fontsize + 4
+    ));
+    });
+  } else {
+    for (let i = 0; i < mod; i++) {
+      const idx = vflip ? i : (mod - i - 1);
+      if (mask[idx]) {
+        labels.push(text(
+          idx,
+          step * (i + .5),
+          0.5 * fontsize + 4
+        ));
+      }
     }
   }
 
@@ -286,8 +299,10 @@ const cage = (desc, opt) => {
       res.push(vline(-(height >>> 3), xj, height));
     }
     if (opt.compact && k !== 0 && !skipDrawingEmptySpace(desc, opt, k - 1, mod, i - 1)) {
-      res.push(hline(width / mod, xj, 0));
-      res.push(hline(width / mod, xj, height));
+      const delta_x = (opt.compact && opt.vflip)?width / mod:0;
+
+      res.push(hline(width / mod, xj - delta_x, 0));
+      res.push(hline(width / mod, xj - delta_x, height));
     }
     i++;
     j += delta;