Many lines are gone

[nwtgck]

Thank you so much for making wonderful project!

I'm new to bubbletea.

I made a simple program like as follows. This shows 10-line time. This works as what I expect it to.

bubbletea-10-lines.mp4

The following shows 100-line time. However it does not start with 0.

bubbletea-100-lines-trimmed.mp4

I expect it starts with 0 and there are 100 lines.
Could you tell me how to show 100 lines?

Here is the code.

package main

import (
	"fmt"
	tea "github.com/charmbracelet/bubbletea"
	"log"
	"time"
)

type model struct {
	t time.Time
}

type updateTimeMsg struct{}

func (model) Init() tea.Cmd {
	return func() tea.Msg {
		return updateTimeMsg{}
	}
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "ctrl+c":
			return m, tea.Quit
		}
	case updateTimeMsg:
		m.t = time.Now()
		return m, tea.Tick(50*time.Millisecond, func(t time.Time) tea.Msg {
			return updateTimeMsg{}
		})
	}
	return m, nil
}

func (m model) View() string {
	var out string
	for i := 0; i < 10; i++ { // change this to 100
		out += fmt.Sprintf("%d: %v\n", i, m.t)
	}
	return out
}

func main() {
	prog := tea.NewProgram(model{})
	_, err := prog.Run()
	if err != nil {
		log.Fatal(err)
	}
}

[muesli]

Bubble Tea can't jump back into your terminal's scrollback buffer, so it will always only render as many lines as your terminal is currently able to display. That's a limitation of terminals, sadly.

[nwtgck]

Thank you so much for the reponse.

I understood that is the terminal limitation.