diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/gizak/termui/barchart.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/gizak/termui/barchart.go | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/Godeps/_workspace/src/github.com/gizak/termui/barchart.go b/Godeps/_workspace/src/github.com/gizak/termui/barchart.go deleted file mode 100644 index 980e958e2..000000000 --- a/Godeps/_workspace/src/github.com/gizak/termui/barchart.go +++ /dev/null @@ -1,138 +0,0 @@ -// 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 "fmt" - -// BarChart creates multiple bars in a widget: -/* - bc := termui.NewBarChart() - data := []int{3, 2, 5, 3, 9, 5} - bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"} - bc.Border.Label = "Bar Chart" - bc.Data = data - bc.Width = 26 - bc.Height = 10 - bc.DataLabels = bclabels - bc.TextColor = termui.ColorGreen - bc.BarColor = termui.ColorRed - bc.NumColor = termui.ColorYellow -*/ -type BarChart struct { - Block - BarColor Attribute - TextColor Attribute - NumColor Attribute - Data []int - DataLabels []string - BarWidth int - BarGap int - labels [][]rune - dataNum [][]rune - numBar int - scale float64 - max int -} - -// NewBarChart returns a new *BarChart with current theme. -func NewBarChart() *BarChart { - bc := &BarChart{Block: *NewBlock()} - bc.BarColor = ThemeAttr("barchart.bar.bg") - bc.NumColor = ThemeAttr("barchart.num.fg") - bc.TextColor = ThemeAttr("barchart.text.fg") - bc.BarGap = 1 - bc.BarWidth = 3 - return bc -} - -func (bc *BarChart) layout() { - bc.numBar = bc.innerArea.Dx() / (bc.BarGap + bc.BarWidth) - bc.labels = make([][]rune, bc.numBar) - bc.dataNum = make([][]rune, len(bc.Data)) - - for i := 0; i < bc.numBar && i < len(bc.DataLabels) && i < len(bc.Data); i++ { - bc.labels[i] = trimStr2Runes(bc.DataLabels[i], bc.BarWidth) - n := bc.Data[i] - s := fmt.Sprint(n) - bc.dataNum[i] = trimStr2Runes(s, bc.BarWidth) - } - - //bc.max = bc.Data[0] // what if Data is nil? Sometimes when bar graph is nill it produces panic with panic: runtime error: index out of range - // Asign a negative value to get maxvalue auto-populates - if bc.max == 0 { - bc.max = -1 - } - for i := 0; i < len(bc.Data); i++ { - if bc.max < bc.Data[i] { - bc.max = bc.Data[i] - } - } - bc.scale = float64(bc.max) / float64(bc.innerArea.Dy()-1) -} - -func (bc *BarChart) SetMax(max int) { - - if max > 0 { - bc.max = max - } -} - -// Buffer implements Bufferer interface. -func (bc *BarChart) Buffer() Buffer { - buf := bc.Block.Buffer() - bc.layout() - - for i := 0; i < bc.numBar && i < len(bc.Data) && i < len(bc.DataLabels); i++ { - h := int(float64(bc.Data[i]) / bc.scale) - oftX := i * (bc.BarWidth + bc.BarGap) - // plot bar - for j := 0; j < bc.BarWidth; j++ { - for k := 0; k < h; k++ { - c := Cell{ - Ch: ' ', - Bg: bc.BarColor, - } - if bc.BarColor == ColorDefault { // when color is default, space char treated as transparent! - c.Bg |= AttrReverse - } - x := bc.innerArea.Min.X + i*(bc.BarWidth+bc.BarGap) + j - y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2 - k - buf.Set(x, y, c) - } - } - // plot text - for j, k := 0, 0; j < len(bc.labels[i]); j++ { - w := charWidth(bc.labels[i][j]) - c := Cell{ - Ch: bc.labels[i][j], - Bg: bc.Bg, - Fg: bc.TextColor, - } - y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 1 - x := bc.innerArea.Min.X + oftX + k - buf.Set(x, y, c) - k += w - } - // plot num - for j := 0; j < len(bc.dataNum[i]); j++ { - c := Cell{ - Ch: bc.dataNum[i][j], - Fg: bc.NumColor, - Bg: bc.BarColor, - } - if bc.BarColor == ColorDefault { // the same as above - c.Bg |= AttrReverse - } - if h == 0 { - c.Bg = bc.Bg - } - x := bc.innerArea.Min.X + oftX + (bc.BarWidth-len(bc.dataNum[i]))/2 + j - y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2 - buf.Set(x, y, c) - } - } - - return buf -} |