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cview
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Added a short demo for each primitive.

This commit is contained in:
Oliver 2017-12-27 16:05:00 +01:00
parent 3670319cd6
commit 6751475a74
14 changed files with 318 additions and 144 deletions
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144
demos/basic.go
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@ -1,144 +0,0 @@
package main
import (
"fmt"
"log"
"os"
"strings"
"github.com/gdamore/tcell"
"github.com/rivo/tview"
)
func main() {
l, _ := os.Create("/tmp/tview.log")
defer l.Close()
log.SetOutput(l)
app := tview.NewApplication()
pages := tview.NewPages()
list := tview.NewList()
app.SetKeyCapture(tcell.KeyCtrlQ, 0, func(p tview.Primitive) bool {
app.Stop()
return false
})
form := tview.NewForm().
AddInputField("First name", "", 20, nil).
AddInputField("Last name", "", 20, nil).
AddInputField("Age", "", 4, nil).
AddDropDown("Select", []string{"One", "Two", "Three"}, 1, func(text string, index int) {
if text == "Three" {
app.Stop()
}
}).
AddCheckbox("Check", false, nil).
AddButton("Save", func() {
previous := app.GetFocus()
modal := tview.NewModal().
SetText("Would you really like to save this customer to the database?").
AddButtons([]string{"Save", "Cancel"}).
SetDoneFunc(func(buttonIndex int, buttonLabel string) {
pages.RemovePage("confirm")
app.SetFocus(previous)
app.Draw()
})
pages.AddPage("confirm", modal, true)
app.SetFocus(modal)
app.Draw()
}).
AddButton("Cancel", nil).
AddButton("Go to list", func() { app.SetFocus(list) }).
SetCancelFunc(func() {
app.Stop()
})
form.SetTitle("Customer").SetBorder(true)
textView := tview.NewTextView()
textView.SetWrap(true).
SetDynamicColors(true).
SetScrollable(true).
SetRegions(true).
SetChangedFunc(func() { app.Draw() }).
SetDoneFunc(func(key tcell.Key) { textView.ScrollToHighlight(); app.SetFocus(list) })
textView.SetBorder(true).SetTitle("Text view")
go func() {
for i := 0; i < 200; i++ {
fmt.Fprintf(textView, "[\"%d\"]%d\n", i, i)
}
textView.Highlight("199")
}()
frame := tview.NewFrame(list).AddText("Choose!", true, tview.AlignCenter, tcell.ColorRed)
frame.SetBorder(true)
table := tview.NewTable().SetBorders(true).SetSeparator(tview.GraphicsVertBar).SetSelectable(false, false)
lorem := strings.Split("Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.", " ")
cols, rows := 20, 120
word := 0
for r := 0; r < rows; r++ {
for c := 0; c < cols; c++ {
color := tcell.ColorWhite
if c < 2 || r < 2 {
color = tcell.ColorYellow
}
table.SetCell(r, c, &tview.TableCell{
Text: lorem[word],
Color: color,
Align: tview.AlignCenter,
})
word++
if word >= len(lorem) {
word = 0
}
}
}
table.SetSelected(0, 0).SetFixed(2, 2).SetDoneFunc(func(key tcell.Key) {
if key == tcell.KeyEscape {
app.SetFocus(list)
}
if key == tcell.KeyEnter {
table.SetSelectable(true, true)
}
}).SetSelectedFunc(func(row int, column int) {
cell := table.GetCell(row, column)
cell.Color = tcell.ColorRed
table.SetSelectable(false, false)
})
table.SetBorder(true).SetBorderPadding(1, 1, 1, 1)
list.AddItem("Edit a form", "You can do whatever you want", 'e', func() { app.SetFocus(form) }).
AddItem("Navigate text", "Try all the navigations", 't', func() { app.SetFocus(textView) }).
AddItem("Navigate table", "Rows and columns", 'a', func() { app.SetFocus(table) }).
AddItem("Quit the program", "Do it!", 0, func() { app.Stop() })
flex := tview.NewFlex().
AddItem(form, 0, 1).
AddItem(tview.NewFlex().
SetDirection(tview.FlexRow).
AddItem(frame, 0, 1).
AddItem(textView, 0, 1), 0, 1).
AddItem(table, 0, 1).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Fifth"), 20, 1)
inputField := tview.NewInputField().
SetLabel("Type something: ").
SetFieldLength(10).
SetAcceptanceFunc(tview.InputFieldFloat)
inputField.SetBorder(true).SetTitle("Type!")
final := tview.NewFlex().
SetFullScreen(true).
SetDirection(tview.FlexRow).
AddItem(flex, 0, 1).
AddItem(inputField, 3, 1)
pages.AddPage("flex", final, true)
app.SetRoot(pages, true).SetFocus(list)
if err := app.Run(); err != nil {
panic(err)
}
}

12
demos/box/main.go Normal file
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package main
import "github.com/rivo/tview"
func main() {
box := tview.NewBox().
SetBorder(true).
SetTitle("Box Demo")
if err := tview.NewApplication().SetRoot(box, true).Run(); err != nil {
panic(err)
}
}

14
demos/button/main.go Normal file
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package main
import "github.com/rivo/tview"
func main() {
app := tview.NewApplication()
button := tview.NewButton("Hit Enter to close").SetSelectedFunc(func() {
app.Stop()
})
button.SetBorder(true).SetRect(0, 0, 22, 3)
if err := app.SetRoot(button, false).SetFocus(button).Run(); err != nil {
panic(err)
}
}

11
demos/checkbox/main.go Normal file
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package main
import "github.com/rivo/tview"
func main() {
app := tview.NewApplication()
checkbox := tview.NewCheckbox().SetLabel("Hit Enter to check box: ")
if err := app.SetRoot(checkbox, true).SetFocus(checkbox).Run(); err != nil {
panic(err)
}
}

13
demos/dropdown/main.go Normal file
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package main
import "github.com/rivo/tview"
func main() {
app := tview.NewApplication()
dropdown := tview.NewDropDown().
SetLabel("Select an option (hit Enter): ").
SetOptions([]string{"First", "Second", "Third", "Fourth", "Fifth"}, nil)
if err := app.SetRoot(dropdown, true).SetFocus(dropdown).Run(); err != nil {
panic(err)
}
}

19
demos/flex/main.go Normal file
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package main
import (
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
flex := tview.NewFlex().
AddItem(tview.NewBox().SetBorder(true).SetTitle("Left (1/2 x width of Top)"), 0, 1).
AddItem(tview.NewFlex().SetDirection(tview.FlexRow).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Top"), 0, 1).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Middle (3 x height of Top)"), 0, 3).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Bottom (5 rows)"), 5, 1), 0, 2).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Right (20 cols)"), 20, 1)
if err := app.SetRoot(flex, true).SetFocus(flex).Run(); err != nil {
panic(err)
}
}

22
demos/form/main.go Normal file
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package main
import (
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
form := tview.NewForm().
AddDropDown("Title", []string{"Mr.", "Ms.", "Mrs.", "Dr.", "Prof."}, 0, nil).
AddInputField("First name", "", 20, nil).
AddInputField("Last name", "", 20, nil).
AddCheckbox("Age 18+", false, nil).
AddButton("Save", nil).
AddButton("Quit", func() {
app.Stop()
})
form.SetBorder(true).SetTitle("Enter some data").SetTitleAlign(tview.AlignLeft)
if err := app.SetRoot(form, true).SetFocus(form).Run(); err != nil {
panic(err)
}
}

21
demos/frame/main.go Normal file
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package main
import (
"github.com/gdamore/tcell"
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
frame := tview.NewFrame(tview.NewBox().SetBackgroundColor(tcell.ColorBlue)).
SetBorders(2, 2, 2, 2, 4, 4).
AddText("Header left", true, tview.AlignLeft, tcell.ColorWhite).
AddText("Header middle", true, tview.AlignCenter, tcell.ColorWhite).
AddText("Header right", true, tview.AlignRight, tcell.ColorWhite).
AddText("Header second middle", true, tview.AlignCenter, tcell.ColorRed).
AddText("Footer middle", false, tview.AlignCenter, tcell.ColorGreen).
AddText("Footer second middle", false, tview.AlignCenter, tcell.ColorGreen)
if err := app.SetRoot(frame, true).SetFocus(frame).Run(); err != nil {
panic(err)
}
}

20
demos/inputfield/main.go Normal file
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package main
import (
"github.com/gdamore/tcell"
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
inputField := tview.NewInputField().
SetLabel("Enter a number: ").
SetFieldLength(10).
SetAcceptanceFunc(tview.InputFieldInteger).
SetDoneFunc(func(key tcell.Key) {
app.Stop()
})
if err := app.SetRoot(inputField, true).SetFocus(inputField).Run(); err != nil {
panic(err)
}
}

20
demos/list/main.go Normal file
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package main
import (
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
list := tview.NewList().
AddItem("List item 1", "Some explanatory text", 'a', nil).
AddItem("List item 2", "Some explanatory text", 'b', nil).
AddItem("List item 3", "Some explanatory text", 'c', nil).
AddItem("List item 4", "Some explanatory text", 'd', nil).
AddItem("Quit", "Press to exit", 'q', func() {
app.Stop()
})
if err := app.SetRoot(list, true).SetFocus(list).Run(); err != nil {
panic(err)
}
}

20
demos/modal/main.go Normal file
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package main
import (
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
modal := tview.NewModal().
SetText("Do you want to quit the application?").
AddButtons([]string{"Quit", "Cancel"}).
SetDoneFunc(func(buttonIndex int, buttonLabel string) {
if buttonLabel == "Quit" {
app.Stop()
}
})
if err := app.SetRoot(modal, false).SetFocus(modal).Run(); err != nil {
panic(err)
}
}

33
demos/pages/main.go Normal file
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@ -0,0 +1,33 @@
package main
import (
"fmt"
"github.com/rivo/tview"
)
const pageCount = 5
func main() {
app := tview.NewApplication()
pages := tview.NewPages()
for page := 0; page < pageCount; page++ {
func(page int) {
pages.AddPage(fmt.Sprintf("page-%d", page),
tview.NewModal().
SetText(fmt.Sprintf("This is page %d. Choose where to go next.", page+1)).
AddButtons([]string{"Next", "Quit"}).
SetDoneFunc(func(buttonIndex int, buttonLabel string) {
if buttonIndex == 0 {
pages.SwitchToPage(fmt.Sprintf("page-%d", (page+1)%pageCount))
} else {
app.Stop()
}
}),
page == 0)
}(page)
}
if err := app.SetRoot(pages, true).SetFocus(pages).Run(); err != nil {
panic(err)
}
}

46
demos/table/main.go Normal file
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package main
import (
"strings"
"github.com/gdamore/tcell"
"github.com/rivo/tview"
)
func main() {
app := tview.NewApplication()
table := tview.NewTable().
SetBorders(true)
lorem := strings.Split("Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.", " ")
cols, rows := 10, 40
word := 0
for r := 0; r < rows; r++ {
for c := 0; c < cols; c++ {
color := tcell.ColorWhite
if c < 1 || r < 1 {
color = tcell.ColorYellow
}
table.SetCell(r, c, &tview.TableCell{
Text: lorem[word],
Color: color,
Align: tview.AlignCenter,
})
word = (word + 1) % len(lorem)
}
}
table.SetSelected(0, 0).SetFixed(1, 1).SetDoneFunc(func(key tcell.Key) {
if key == tcell.KeyEscape {
app.Stop()
}
if key == tcell.KeyEnter {
table.SetSelectable(true, true)
}
}).SetSelectedFunc(func(row int, column int) {
cell := table.GetCell(row, column)
cell.Color = tcell.ColorRed
table.SetSelectable(false, false)
})
if err := app.SetRoot(table, true).SetFocus(table).Run(); err != nil {
panic(err)
}
}

67
demos/textview/main.go Normal file
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package main
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/gdamore/tcell"
"github.com/rivo/tview"
)
const corporate = `Leverage agile frameworks to provide a robust synopsis for high level overviews. Iterative approaches to corporate strategy foster collaborative thinking to further the overall value proposition. Organically grow the holistic world view of disruptive innovation via workplace diversity and empowerment.
Bring to the table win-win survival strategies to ensure proactive domination. At the end of the day, going forward, a new normal that has evolved from generation X is on the runway heading towards a streamlined cloud solution. User generated content in real-time will have multiple touchpoints for offshoring.
Capitalize on low hanging fruit to identify a ballpark value added activity to beta test. Override the digital divide with additional clickthroughs from DevOps. Nanotechnology immersion along the information highway will close the loop on focusing solely on the bottom line.
[yellow]Press Enter, then Tab/Backtab for word selections`
func main() {
app := tview.NewApplication()
textView := tview.NewTextView().
SetDynamicColors(true).
SetRegions(true).
SetChangedFunc(func() {
app.Draw()
})
numSelections := 0
go func() {
for _, word := range strings.Split(corporate, " ") {
if word == "the" {
word = "[red]the[white]"
}
if word == "to" {
word = fmt.Sprintf(`["%d"]to[""]`, numSelections)
numSelections++
}
fmt.Fprintf(textView, "%s ", word)
time.Sleep(200 * time.Millisecond)
}
}()
textView.SetDoneFunc(func(key tcell.Key) {
currentSelection := textView.GetHighlights()
if key == tcell.KeyEnter {
if len(currentSelection) > 0 {
textView.Highlight()
} else {
textView.Highlight("0").ScrollToHighlight()
}
} else if len(currentSelection) > 0 {
index, _ := strconv.Atoi(currentSelection[0])
if key == tcell.KeyTab {
index = (index + 1) % numSelections
} else if key == tcell.KeyBacktab {
index = (index - 1 + numSelections) % numSelections
} else {
return
}
textView.Highlight(strconv.Itoa(index)).ScrollToHighlight()
}
})
textView.SetBorder(true)
if err := app.SetRoot(textView, true).SetFocus(textView).Run(); err != nil {
panic(err)
}
}