Terminal-based user interface toolkit
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package main
import (
"fmt"
"strings"
"github.com/gdamore/tcell/v2"
"gitlab.com/tslocum/cview"
)
const tableData = `OrderDate|Region|Rep|Item|Units|UnitCost|Total
1/6/2017|East|Jones|Pencil|95|1.99|189.05
1/23/2017|Central|Kivell|Binder|50|19.99|999.50
2/9/2017|Central|Jardine|Pencil|36|4.99|179.64
2/26/2017|Central|Gill|Pen|27|19.99|539.73
3/15/2017|West|Sorvino|Pencil|56|2.99|167.44
4/1/2017|East|Jones|Binder|60|4.99|299.40
4/18/2017|Central|Andrews|Pencil|75|1.99|149.25
5/5/2017|Central|Jardine|Pencil|90|4.99|449.10
5/22/2017|West|Thompson|Pencil|32|1.99|63.68
6/8/2017|East|Jones|Binder|60|8.99|539.40
6/25/2017|Central|Morgan|Pencil|90|4.99|449.10
7/12/2017|East|Howard|Binder|29|1.99|57.71
7/29/2017|East|Parent|Binder|81|19.99|1,619.19
8/15/2017|East|Jones|Pencil|35|4.99|174.65
9/1/2017|Central|Smith|Desk|2|125.00|250.00
9/18/2017|East|Jones|Pen Set|16|15.99|255.84
10/5/2017|Central|Morgan|Binder|28|8.99|251.72
10/22/2017|East|Jones|Pen|64|8.99|575.36
11/8/2017|East|Parent|Pen|15|19.99|299.85
11/25/2017|Central|Kivell|Pen Set|96|4.99|479.04
12/12/2017|Central|Smith|Pencil|67|1.29|86.43
12/29/2017|East|Parent|Pen Set|74|15.99|1,183.26
1/15/2018|Central|Gill|Binder|46|8.99|413.54
2/1/2018|Central|Smith|Binder|87|15.00|1,305.00
2/18/2018|East|Jones|Binder|4|4.99|19.96
3/7/2018|West|Sorvino|Binder|7|19.99|139.93
3/24/2018|Central|Jardine|Pen Set|50|4.99|249.50
4/10/2018|Central|Andrews|Pencil|66|1.99|131.34
4/27/2018|East|Howard|Pen|96|4.99|479.04
5/14/2018|Central|Gill|Pencil|53|1.29|68.37
5/31/2018|Central|Gill|Binder|80|8.99|719.20
6/17/2018|Central|Kivell|Desk|5|125.00|625.00
7/4/2018|East|Jones|Pen Set|62|4.99|309.38
7/21/2018|Central|Morgan|Pen Set|55|12.49|686.95
8/7/2018|Central|Kivell|Pen Set|42|23.95|1,005.90
8/24/2018|West|Sorvino|Desk|3|275.00|825.00
9/10/2018|Central|Gill|Pencil|7|1.29|9.03
9/27/2018|West|Sorvino|Pen|76|1.99|151.24
10/14/2018|West|Thompson|Binder|57|19.99|1,139.43
10/31/2018|Central|Andrews|Pencil|14|1.29|18.06
11/17/2018|Central|Jardine|Binder|11|4.99|54.89
12/4/2018|Central|Jardine|Binder|94|19.99|1,879.06
12/21/2018|Central|Andrews|Binder|28|4.99|139.72`
const tableBasic = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white])
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
const tableSeparator = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white]).
[yellow]SetSeparator[white](Borders.Vertical)
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
const tableBorders = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white]).
[yellow]SetBorders[white](true)
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
const tableSelectRow = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white]).
[yellow]SetSelectable[white](true, false)
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
NotSelectable: row == [red]0[white] || column == [red]0[white],
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
const tableSelectColumn = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white]).
[yellow]SetSelectable[white](false, true)
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
NotSelectable: row == [red]0[white] || column == [red]0[white],
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
const tableSelectCell = `[green]func[white] [yellow]main[white]() {
table := cview.[yellow]NewTable[white]().
[yellow]SetFixed[white]([red]1[white], [red]1[white]).
[yellow]SetSelectable[white](true, true)
[yellow]for[white] row := [red]0[white]; row < [red]40[white]; row++ {
[yellow]for[white] column := [red]0[white]; column < [red]7[white]; column++ {
color := tcell.ColorWhite.TrueColor()
[yellow]if[white] row == [red]0[white] {
color = tcell.ColorYellow.TrueColor()
} [yellow]else[white] [yellow]if[white] column == [red]0[white] {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
[yellow]if[white] row == [red]0[white] {
align = cview.AlignCenter
} [yellow]else[white] [yellow]if[white] column == [red]0[white] || column >= [red]4[white] {
align = cview.AlignRight
}
table.[yellow]SetCell[white](row,
column,
&cview.TableCell{
Text: [red]"..."[white],
Color: color,
Align: align,
NotSelectable: row == [red]0[white] || column == [red]0[white],
})
}
}
cview.[yellow]NewApplication[white]().
[yellow]SetRoot[white](table, true).
[yellow]Run[white]()
}`
// Table demonstrates the Table.
func Table(nextSlide func()) (title string, content cview.Primitive) {
table := cview.NewTable().
SetFixed(1, 1)
for row, line := range strings.Split(tableData, "\n") {
for column, cell := range strings.Split(line, "|") {
color := tcell.ColorWhite.TrueColor()
if row == 0 {
color = tcell.ColorYellow.TrueColor()
} else if column == 0 {
color = tcell.ColorDarkCyan.TrueColor()
}
align := cview.AlignLeft
if row == 0 {
align = cview.AlignCenter
} else if column == 0 || column >= 4 {
align = cview.AlignRight
}
tableCell := cview.NewTableCell(cell).
SetTextColor(color).
SetAlign(align).
SetSelectable(row != 0 && column != 0)
if column >= 1 && column <= 3 {
tableCell.SetExpansion(1)
}
table.SetCell(row, column, tableCell)
}
}
table.SetBorder(true).SetTitle("Table")
code := cview.NewTextView().
SetWrap(false).
SetDynamicColors(true)
code.SetBorderPadding(1, 1, 2, 0)
list := cview.NewList()
basic := func() {
table.SetBorders(false).
SetSelectable(false, false).
SetSeparator(' ')
code.Clear()
fmt.Fprint(code, tableBasic)
}
separator := func() {
table.SetBorders(false).
SetSelectable(false, false).
SetSeparator(cview.Borders.Vertical)
code.Clear()
fmt.Fprint(code, tableSeparator)
}
borders := func() {
table.SetBorders(true).
SetSelectable(false, false)
code.Clear()
fmt.Fprint(code, tableBorders)
}
selectRow := func() {
table.SetBorders(false).
SetSelectable(true, false).
SetSeparator(' ')
code.Clear()
fmt.Fprint(code, tableSelectRow)
}
selectColumn := func() {
table.SetBorders(false).
SetSelectable(false, true).
SetSeparator(' ')
code.Clear()
fmt.Fprint(code, tableSelectColumn)
}
selectCell := func() {
table.SetBorders(false).
SetSelectable(true, true).
SetSeparator(' ')
code.Clear()
fmt.Fprint(code, tableSelectCell)
}
navigate := func() {
app.SetFocus(table)
table.SetDoneFunc(func(key tcell.Key) {
app.SetFocus(list)
}).SetSelectedFunc(func(row int, column int) {
app.SetFocus(list)
})
}
list.ShowSecondaryText(false).
AddItem(cview.NewListItem("Basic table").SetShortcut('b').SetSelectedFunc(basic)).
AddItem(cview.NewListItem("Table with separator").SetShortcut('s').SetSelectedFunc(separator)).
AddItem(cview.NewListItem("Table with borders").SetShortcut('o').SetSelectedFunc(borders)).
AddItem(cview.NewListItem("Selectable rows").SetShortcut('r').SetSelectedFunc(selectRow)).
AddItem(cview.NewListItem("Selectable columns").SetShortcut('c').SetSelectedFunc(selectColumn)).
AddItem(cview.NewListItem("Selectable cells").SetShortcut('l').SetSelectedFunc(selectCell)).
AddItem(cview.NewListItem("Navigate").SetShortcut('n').SetSelectedFunc(navigate)).
AddItem(cview.NewListItem("Next slide").SetShortcut('x').SetSelectedFunc(nextSlide))
list.SetBorderPadding(1, 1, 2, 2)
basic()
return "Table", cview.NewFlex().
AddItem(cview.NewFlex().
SetDirection(cview.FlexRow).
AddItem(list, 10, 1, true).
AddItem(table, 0, 1, false), 0, 1, true).
AddItem(code, codeWidth, 1, false)
}