From 53e600811ad9fd840fb5eef8a88923fa938bc684 Mon Sep 17 00:00:00 2001
From: ketmar <ketmar@ketmar.no-ip.org>
Date: Mon, 25 Sep 2017 18:58:42 +0000
Subject: [PATCH] cosmetix

FossilOrigin-Name: b7e6ea41da705b2d4aca97de370021c530b4564d6edc4b7646157c0e04f70cb3
---
 xreader.d | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/xreader.d b/xreader.d
index 967d880..7a3f052 100644
--- a/xreader.d
+++ b/xreader.d
@@ -1008,18 +1008,24 @@ void run () {
       // smooth scrolling
       if (formatWorks == 0) {
         enum Delta = 92*2;
-        if (toMove < 0) {
-          int sc = -toMove;
-          if (sc > Delta) sc = Delta;
-          hardScrollBy(-sc);
-          toMove += sc;
-          nextFadeTime = ctt+500.msecs;
-          refresh();
-        } else if (toMove > 0) {
-          int sc = toMove;
-          if (sc > Delta) sc = Delta;
-          hardScrollBy(sc);
-          toMove -= sc;
+        if (toMove != 0) {
+          import std.math : abs;
+          immutable int sign = (toMove < 0 ? -1 : 1);
+          // change speed
+          if (arrowSpeed == 0) arrowSpeed = 8;
+          if (abs(toMove) <= arrowSpeed) {
+            arrowSpeed /= 2;
+            if (arrowSpeed < 4) arrowSpeed = 4;
+          } else {
+            arrowSpeed *= 2;
+            if (arrowSpeed > Delta) arrowSpeed = Delta;
+          }
+          // calc move distance
+          int sc = arrowSpeed;
+          if (sc > abs(toMove)) sc = abs(toMove);
+          hardScrollBy(sc*sign);
+          toMove -= sc*sign;
+          if (toMove == 0) arrowSpeed = 0;
           nextFadeTime = ctt+500.msecs;
           refresh();
         } else if (arrowDir) {
-- 
2.11.4.GIT