1 files changed, 109 insertions, 0 deletions
diff --git a/vendor/github.com/gizak/termui/gauge.go b/vendor/github.com/gizak/termui/gauge.go
new file mode 100644
index 000000000..01af0ea7c
--- /dev/null
+++ b/vendor/github.com/gizak/termui/gauge.go
@@ -0,0 +1,109 @@
+// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Use of this source code is governed by a MIT license that can
+// be found in the LICENSE file.
+
+package termui
+
+import (
+	"strconv"
+	"strings"
+)
+
+// Gauge is a progress bar like widget.
+// A simple example:
+/*
+  g := termui.NewGauge()
+  g.Percent = 40
+  g.Width = 50
+  g.Height = 3
+  g.BorderLabel = "Slim Gauge"
+  g.BarColor = termui.ColorRed
+  g.PercentColor = termui.ColorBlue
+*/
+
+const ColorUndef Attribute = Attribute(^uint16(0))
+
+type Gauge struct {
+	Block
+	Percent                 int
+	BarColor                Attribute
+	PercentColor            Attribute
+	PercentColorHighlighted Attribute
+	Label                   string
+	LabelAlign              Align
+}
+
+// NewGauge return a new gauge with current theme.
+func NewGauge() *Gauge {
+	g := &Gauge{
+		Block:                   *NewBlock(),
+		PercentColor:            ThemeAttr("gauge.percent.fg"),
+		BarColor:                ThemeAttr("gauge.bar.bg"),
+		Label:                   "{{percent}}%",
+		LabelAlign:              AlignCenter,
+		PercentColorHighlighted: ColorUndef,
+	}
+
+	g.Width = 12
+	g.Height = 5
+	return g
+}
+
+// Buffer implements Bufferer interface.
+func (g *Gauge) Buffer() Buffer {
+	buf := g.Block.Buffer()
+
+	// plot bar
+	w := g.Percent * g.innerArea.Dx() / 100
+	for i := 0; i < g.innerArea.Dy(); i++ {
+		for j := 0; j < w; j++ {
+			c := Cell{}
+			c.Ch = ' '
+			c.Bg = g.BarColor
+			if c.Bg == ColorDefault {
+				c.Bg |= AttrReverse
+			}
+			buf.Set(g.innerArea.Min.X+j, g.innerArea.Min.Y+i, c)
+		}
+	}
+
+	// plot percentage
+	s := strings.Replace(g.Label, "{{percent}}", strconv.Itoa(g.Percent), -1)
+	pry := g.innerArea.Min.Y + g.innerArea.Dy()/2
+	rs := str2runes(s)
+	var pos int
+	switch g.LabelAlign {
+	case AlignLeft:
+		pos = 0
+
+	case AlignCenter:
+		pos = (g.innerArea.Dx() - strWidth(s)) / 2
+
+	case AlignRight:
+		pos = g.innerArea.Dx() - strWidth(s) - 1
+	}
+	pos += g.innerArea.Min.X
+
+	for i, v := range rs {
+		c := Cell{
+			Ch: v,
+			Fg: g.PercentColor,
+		}
+
+		if w+g.innerArea.Min.X > pos+i {
+			c.Bg = g.BarColor
+			if c.Bg == ColorDefault {
+				c.Bg |= AttrReverse
+			}
+
+			if g.PercentColorHighlighted != ColorUndef {
+				c.Fg = g.PercentColorHighlighted
+			}
+		} else {
+			c.Bg = g.Block.Bg
+		}
+
+		buf.Set(1+pos+i, pry, c)
+	}
+	return buf
+}