rclone/vendor/github.com/nsf/termbox-go/_demos/raw_input.go

110 lines
2.3 KiB
Go

package main
import (
"fmt"
"github.com/nsf/termbox-go"
"strings"
)
func tbprint(x, y int, fg, bg termbox.Attribute, msg string) {
for _, c := range msg {
termbox.SetCell(x, y, c, fg, bg)
x++
}
}
var current string
var curev termbox.Event
func mouse_button_str(k termbox.Key) string {
switch k {
case termbox.MouseLeft:
return "MouseLeft"
case termbox.MouseMiddle:
return "MouseMiddle"
case termbox.MouseRight:
return "MouseRight"
case termbox.MouseRelease:
return "MouseRelease"
case termbox.MouseWheelUp:
return "MouseWheelUp"
case termbox.MouseWheelDown:
return "MouseWheelDown"
}
return "Key"
}
func mod_str(m termbox.Modifier) string {
var out []string
if m&termbox.ModAlt != 0 {
out = append(out, "ModAlt")
}
if m&termbox.ModMotion != 0 {
out = append(out, "ModMotion")
}
return strings.Join(out, " | ")
}
func redraw_all() {
const coldef = termbox.ColorDefault
termbox.Clear(coldef, coldef)
tbprint(0, 0, termbox.ColorMagenta, coldef, "Press 'q' to quit")
tbprint(0, 1, coldef, coldef, current)
switch curev.Type {
case termbox.EventKey:
tbprint(0, 2, coldef, coldef,
fmt.Sprintf("EventKey: k: %d, c: %c, mod: %s", curev.Key, curev.Ch, mod_str(curev.Mod)))
case termbox.EventMouse:
tbprint(0, 2, coldef, coldef,
fmt.Sprintf("EventMouse: x: %d, y: %d, b: %s, mod: %s",
curev.MouseX, curev.MouseY, mouse_button_str(curev.Key), mod_str(curev.Mod)))
case termbox.EventNone:
tbprint(0, 2, coldef, coldef, "EventNone")
}
tbprint(0, 3, coldef, coldef, fmt.Sprintf("%d", curev.N))
termbox.Flush()
}
func main() {
err := termbox.Init()
if err != nil {
panic(err)
}
defer termbox.Close()
termbox.SetInputMode(termbox.InputAlt | termbox.InputMouse)
redraw_all()
data := make([]byte, 0, 64)
mainloop:
for {
if cap(data)-len(data) < 32 {
newdata := make([]byte, len(data), len(data)+32)
copy(newdata, data)
data = newdata
}
beg := len(data)
d := data[beg : beg+32]
switch ev := termbox.PollRawEvent(d); ev.Type {
case termbox.EventRaw:
data = data[:beg+ev.N]
current = fmt.Sprintf("%q", data)
if current == `"q"` {
break mainloop
}
for {
ev := termbox.ParseEvent(data)
if ev.N == 0 {
break
}
curev = ev
copy(data, data[curev.N:])
data = data[:len(data)-curev.N]
}
case termbox.EventError:
panic(ev.Err)
}
redraw_all()
}
}