From af5d06d415b0a772490bd1564ee32671a6afae67 Mon Sep 17 00:00:00 2001
From: sqshq <sqshq@sqshq.com>
Date: Mon, 1 Jul 2019 02:07:39 -0400
Subject: [PATCH] sparkline visualization improvements

---
 component/sparkline/sparkline.go | 23 ++++++++++++-----------
 go.mod                           |  2 +-
 go.sum                           |  2 ++
 3 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/component/sparkline/sparkline.go b/component/sparkline/sparkline.go
index f65f5a2..62ef153 100644
--- a/component/sparkline/sparkline.go
+++ b/component/sparkline/sparkline.go
@@ -117,20 +117,21 @@ func (s *SparkLine) Draw(buffer *ui.Buffer) {
 			break
 		}
 
-		top := int((s.values[i] / s.maxValue) * float64(height))
+		top := 0
 
-		if top == 0 {
-			top = 1
+		if s.maxValue != s.minValue {
+			top = int((s.values[i] - s.minValue) * float64(height) / (s.maxValue - s.minValue))
 		}
 
-		for j := 1; j <= top; j++ {
-			buffer.SetCell(ui.NewCell(console.SymbolVerticalBar, ui.NewStyle(console.GetGradientColor(s.gradient, j-1, height))), image.Pt(s.Inner.Max.X-n-indent, s.Inner.Max.Y-j))
-			if i == len(s.values)-1 && j == top {
-				buffer.SetString(curValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Inner.Max.Y-j))
-				if s.maxValue != s.minValue {
-					buffer.SetString(minValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Max.Y-2))
-					buffer.SetString(maxValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Min.Y+1))
-				}
+		for j := 0; j <= top; j++ {
+			buffer.SetCell(ui.NewCell(console.SymbolVerticalBar, ui.NewStyle(console.GetGradientColor(s.gradient, j, height))), image.Pt(s.Inner.Max.X-n-indent, s.Inner.Max.Y-j-1))
+		}
+
+		if i == len(s.values)-1 {
+			buffer.SetString(curValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Inner.Max.Y-top-1))
+			if s.maxValue != s.minValue {
+				buffer.SetString(minValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Max.Y-2))
+				buffer.SetString(maxValue, textStyle, image.Pt(s.Inner.Max.X-n-indent+2, s.Min.Y+1))
 			}
 		}
 	}
diff --git a/go.mod b/go.mod
index 24149c2..a970f44 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ require (
 	github.com/hajimehoshi/go-mp3 v0.1.1
 	github.com/hajimehoshi/oto v0.1.1
 	github.com/jessevdk/go-flags v1.4.0
-	github.com/kr/pty v1.1.4
+	github.com/kr/pty v1.1.5
 	github.com/lunixbochs/vtclean v1.0.0
 	github.com/mattn/go-runewidth v0.0.4
 	github.com/mbndr/figlet4go v0.0.0-20190224160619-d6cef5b186ea
diff --git a/go.sum b/go.sum
index fd537ba..49d7e5d 100644
--- a/go.sum
+++ b/go.sum
@@ -14,6 +14,8 @@ github.com/jessevdk/go-flags v1.4.0 h1:4IU2WS7AumrZ/40jfhf4QVDMsQwqA7VEHozFRrGAR
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/kr/pty v1.1.4 h1:5Myjjh3JY/NaAi4IsUbHADytDyl1VE1Y9PXDlL+P/VQ=
 github.com/kr/pty v1.1.4/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/pty v1.1.5 h1:hyz3dwM5QLc1Rfoz4FuWJQG5BN7tc6K1MndAUnGpQr4=
+github.com/kr/pty v1.1.5/go.mod h1:9r2w37qlBe7rQ6e1fg1S/9xpWHSnaqNdHD3WcMdbPDA=
 github.com/lunixbochs/vtclean v1.0.0 h1:xu2sLAri4lGiovBDQKxl5mrXyESr3gUr5m5SM5+LVb8=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=