mirror of https://github.com/gizak/termui.git
Add Tabpane
This commit is contained in:
marigs
parent
9d0302382d
commit
5a0bce64fa
|
|
@ -0,0 +1,79 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"github.com/gizak/termui"
|
||||
//"fmt"
|
||||
//"os"
|
||||
)
|
||||
|
||||
func main() {
|
||||
err := termui.Init()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
defer termui.Close()
|
||||
|
||||
termui.UseTheme("helloworld")
|
||||
|
||||
header := termui.NewPar("Press q to quit, Press j or k to switch tabs")
|
||||
header.Height = 1
|
||||
header.Width = 50
|
||||
header.HasBorder = false
|
||||
header.TextBgColor = termui.ColorBlue
|
||||
|
||||
tab1 := termui.NewTab("pierwszy")
|
||||
par2 := termui.NewPar("Press q to quit\nPress j or k to switch tabs\n")
|
||||
par2.Height = 5
|
||||
par2.Width = 37
|
||||
par2.Y = 0
|
||||
par2.Border.Label = "Keys"
|
||||
par2.Border.FgColor = termui.ColorYellow
|
||||
tab1.AddBlocks(par2)
|
||||
|
||||
tab2 := termui.NewTab("drugi")
|
||||
bc := termui.NewBarChart()
|
||||
data := []int{3, 2, 5, 3, 9, 5, 3, 2, 5, 8, 3, 2, 4, 5, 3, 2, 5, 7, 5, 3, 2, 6, 7, 4, 6, 3, 6, 7, 8, 3, 6, 4, 5, 3, 2, 4, 6, 4, 8, 5, 9, 4, 3, 6, 5, 3, 6}
|
||||
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
|
||||
tab2.AddBlocks(bc)
|
||||
|
||||
tab3 := termui.NewTab("trzeci")
|
||||
tab4 := termui.NewTab("żółw")
|
||||
tab5 := termui.NewTab("four")
|
||||
tab6 := termui.NewTab("five")
|
||||
|
||||
tabpane := termui.NewTabpane()
|
||||
tabpane.Y = 1
|
||||
tabpane.Width = 30
|
||||
tabpane.HasBorder = true
|
||||
|
||||
tabpane.SetTabs(*tab1, *tab2, *tab3, *tab4, *tab5, *tab6)
|
||||
|
||||
termui.Render(header, tabpane)
|
||||
|
||||
evt := termui.EventCh()
|
||||
for {
|
||||
select {
|
||||
case e := <- evt:
|
||||
if e.Type == termui.EventKey {
|
||||
switch e.Ch {
|
||||
case 'q':
|
||||
return
|
||||
case 'j':
|
||||
tabpane.SetActiveLeft()
|
||||
termui.Render(header, tabpane)
|
||||
case 'k':
|
||||
tabpane.SetActiveRight()
|
||||
termui.Render(header, tabpane)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,235 @@
|
|||
|
||||
package termui
|
||||
|
||||
import (
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
type Tab struct {
|
||||
Label string
|
||||
RuneLen int
|
||||
Blocks []Bufferer
|
||||
}
|
||||
|
||||
func NewTab(label string) *Tab {
|
||||
return &Tab {
|
||||
Label: label,
|
||||
RuneLen: utf8.RuneCount([]byte(label)) }
|
||||
}
|
||||
|
||||
func (tab *Tab) AddBlocks(rs ...Bufferer) {
|
||||
for _, r := range rs {
|
||||
tab.Blocks = append(tab.Blocks, r)
|
||||
}
|
||||
}
|
||||
|
||||
func (tab *Tab) Buffer() []Point {
|
||||
points := []Point{}
|
||||
for blockNum := 0; blockNum < len(tab.Blocks); blockNum++ {
|
||||
b := &tab.Blocks[blockNum]
|
||||
blockPoints := (*b).Buffer()
|
||||
points = append(points, blockPoints...)
|
||||
}
|
||||
return points
|
||||
}
|
||||
|
||||
type Tabpane struct {
|
||||
Block
|
||||
Tabs []Tab
|
||||
activeTabIndex int
|
||||
posTabText []int
|
||||
offTabText int
|
||||
}
|
||||
|
||||
func NewTabpane() *Tabpane {
|
||||
tp := Tabpane {
|
||||
Block: *NewBlock(),
|
||||
activeTabIndex: 0,
|
||||
offTabText: 0}
|
||||
return &tp
|
||||
}
|
||||
|
||||
func (tp *Tabpane) SetTabs(tabs ...Tab) {
|
||||
tp.Tabs = make([]Tab, len(tabs))
|
||||
tp.posTabText = make([]int, len(tabs)+1)
|
||||
off := 0
|
||||
for i :=0; i < len(tp.Tabs); i++ {
|
||||
tp.Tabs[i] = tabs[i]
|
||||
tp.posTabText[i] = off
|
||||
off += tp.Tabs[i].RuneLen+1 //+1 for space between tabs
|
||||
}
|
||||
tp.posTabText[len(tabs)] = off-1 //total length of Tab's text
|
||||
}
|
||||
|
||||
func (tp *Tabpane) SetActiveLeft() {
|
||||
if tp.activeTabIndex == 0 {
|
||||
return
|
||||
}
|
||||
tp.activeTabIndex -= 1
|
||||
if tp.posTabText[tp.activeTabIndex] < tp.offTabText {
|
||||
tp.offTabText = tp.posTabText[tp.activeTabIndex]
|
||||
}
|
||||
}
|
||||
|
||||
func (tp *Tabpane) SetActiveRight() {
|
||||
if tp.activeTabIndex == len(tp.Tabs)-1 {
|
||||
return
|
||||
}
|
||||
tp.activeTabIndex += 1
|
||||
endOffset := tp.posTabText[tp.activeTabIndex] + tp.Tabs[tp.activeTabIndex].RuneLen
|
||||
if endOffset + tp.offTabText > tp.innerWidth {
|
||||
tp.offTabText = endOffset - tp.innerWidth
|
||||
}
|
||||
}
|
||||
|
||||
// Checks if left and right tabs are fully visible
|
||||
// if only left tabs are not visible return -1
|
||||
// if only right tabs are not visible return 1
|
||||
// if both return 0
|
||||
// use only if fitsWidth() returns false
|
||||
func (tp *Tabpane) checkAlignment() int {
|
||||
ret := 0
|
||||
if tp.offTabText > 0 {
|
||||
ret = -1
|
||||
}
|
||||
if tp.offTabText + tp.innerWidth < tp.posTabText[len(tp.Tabs)] {
|
||||
ret += 1
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
// Checks if all tabs fits innerWidth of Tabpane
|
||||
func (tp *Tabpane) fitsWidth() bool {
|
||||
return tp.innerWidth >= tp.posTabText[len(tp.Tabs)]
|
||||
}
|
||||
|
||||
func (tp *Tabpane) align() {
|
||||
if !tp.fitsWidth() && !tp.HasBorder {
|
||||
tp.innerWidth -= 2
|
||||
tp.innerX += 1
|
||||
}
|
||||
}
|
||||
|
||||
// Adds the point only if it is visible in Tabpane.
|
||||
// Point can be invisible if concatenation of Tab's texts is widther then
|
||||
// innerWidth of Tabpane
|
||||
func (tp *Tabpane) addPoint(ptab []Point, charOffset *int, oftX *int, points ...Point) []Point {
|
||||
if *charOffset < tp.offTabText || tp.offTabText + tp.innerWidth < *charOffset {
|
||||
*charOffset++
|
||||
return ptab
|
||||
}
|
||||
for _, p := range(points) {
|
||||
p.X = *oftX
|
||||
ptab = append(ptab, p)
|
||||
}
|
||||
*oftX++
|
||||
*charOffset++
|
||||
return ptab
|
||||
}
|
||||
|
||||
// Draws the point and redraws upper and lower border points (if it has one)
|
||||
func (tp *Tabpane) drawPointWithBorder(p Point, ch rune, chbord rune, chdown rune, chup rune) []Point {
|
||||
var addp []Point
|
||||
p.Ch = ch
|
||||
if tp.HasBorder {
|
||||
p.Ch = chdown
|
||||
p.Y = tp.innerY-1
|
||||
addp = append(addp, p)
|
||||
p.Ch = chup
|
||||
p.Y = tp.innerY+1
|
||||
addp = append(addp, p)
|
||||
p.Ch = chbord
|
||||
}
|
||||
p.Y = tp.innerY
|
||||
return append(addp, p)
|
||||
}
|
||||
|
||||
func (tp *Tabpane) Buffer() []Point {
|
||||
if tp.HasBorder {
|
||||
tp.Height = 3
|
||||
} else {
|
||||
tp.Height = 1
|
||||
}
|
||||
if tp.Width > tp.posTabText[len(tp.Tabs)]+2 {
|
||||
tp.Width = tp.posTabText[len(tp.Tabs)]+2
|
||||
}
|
||||
ps := tp.Block.Buffer()
|
||||
tp.align()
|
||||
if tp.innerHeight <= 0 || tp.innerWidth <= 0 {
|
||||
return nil
|
||||
}
|
||||
oftX := tp.innerX
|
||||
charOffset := 0
|
||||
pt := Point{Bg: tp.Border.BgColor, Fg: tp.Border.FgColor}
|
||||
for i, tab := range tp.Tabs {
|
||||
|
||||
if i != 0 {
|
||||
pt.X = oftX
|
||||
pt.Y = tp.innerY
|
||||
addp := tp.drawPointWithBorder(pt, ' ', VERTICAL_LINE, HORIZONTAL_DOWN, HORIZONTAL_UP)
|
||||
ps = tp.addPoint(ps, &charOffset, &oftX, addp...)
|
||||
}
|
||||
|
||||
if i == tp.activeTabIndex {
|
||||
pt.Bg = theme.TabActiveBg
|
||||
}
|
||||
rs := str2runes(tab.Label)
|
||||
for k := 0; k < len(rs); k++ {
|
||||
|
||||
addp := make([]Point, 0, 2)
|
||||
if i == tp.activeTabIndex && tp.HasBorder {
|
||||
pt.Ch = ' '
|
||||
pt.Y = tp.innerY + 1
|
||||
pt.Bg = tp.Border.BgColor
|
||||
addp = append(addp, pt)
|
||||
pt.Bg = theme.TabActiveBg
|
||||
}
|
||||
|
||||
pt.Y = tp.innerY
|
||||
pt.Ch = rs[k]
|
||||
|
||||
addp = append(addp, pt)
|
||||
ps = tp.addPoint(ps, &charOffset, &oftX, addp...)
|
||||
}
|
||||
pt.Bg = tp.Border.BgColor
|
||||
|
||||
if !tp.fitsWidth() {
|
||||
all := tp.checkAlignment()
|
||||
pt.X = tp.innerX-1
|
||||
|
||||
pt.Ch = '*'
|
||||
if tp.HasBorder {
|
||||
pt.Ch = VERTICAL_LINE
|
||||
}
|
||||
ps = append(ps, pt)
|
||||
|
||||
if all <= 0 {
|
||||
addp := tp.drawPointWithBorder(pt, '<', '«', HORIZONTAL_LINE, HORIZONTAL_LINE)
|
||||
ps = append(ps, addp...)
|
||||
}
|
||||
|
||||
pt.X = tp.innerX + tp.innerWidth
|
||||
pt.Ch = '*'
|
||||
if tp.HasBorder {
|
||||
pt.Ch = VERTICAL_LINE
|
||||
}
|
||||
ps = append(ps, pt)
|
||||
if all >= 0 {
|
||||
addp := tp.drawPointWithBorder(pt, '>', '»', HORIZONTAL_LINE, HORIZONTAL_LINE)
|
||||
ps = append(ps, addp...)
|
||||
}
|
||||
}
|
||||
|
||||
//draw tab content below the Tabpane
|
||||
if i == tp.activeTabIndex {
|
||||
blockPoints := tab.Buffer()
|
||||
for i := 0; i < len(blockPoints); i++ {
|
||||
blockPoints[i].Y += tp.Height + tp.Y
|
||||
}
|
||||
ps = append(ps, blockPoints...)
|
||||
}
|
||||
}
|
||||
|
||||
return ps
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue