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beginning-go/vendor/github.com/jroimartin/gocui/_examples/bufs.go
2017-10-26 10:16:01 -07:00

71 lines
1.4 KiB
Go

// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// WARNING: tricky code just for testing purposes, do not use as reference.
package main
import (
"fmt"
"log"
"github.com/jroimartin/gocui"
)
var vbuf, buf string
func quit(g *gocui.Gui, v *gocui.View) error {
vbuf = v.ViewBuffer()
buf = v.Buffer()
return gocui.ErrQuit
}
func overwrite(g *gocui.Gui, v *gocui.View) error {
v.Overwrite = !v.Overwrite
return nil
}
func layout(g *gocui.Gui) error {
_, maxY := g.Size()
if v, err := g.SetView("main", 0, 0, 20, maxY-1); err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Editable = true
v.Wrap = true
if _, err := g.SetCurrentView("main"); err != nil {
return err
}
}
return nil
}
func main() {
g, err := gocui.NewGui(gocui.OutputNormal)
if err != nil {
log.Panicln(err)
}
g.Cursor = true
g.Mouse = true
g.SetManagerFunc(layout)
if err := g.SetKeybinding("main", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
log.Panicln(err)
}
if err := g.SetKeybinding("main", gocui.KeyCtrlI, gocui.ModNone, overwrite); err != nil {
log.Panicln(err)
}
if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
log.Panicln(err)
}
g.Close()
fmt.Printf("VBUF:\n%s\n", vbuf)
fmt.Printf("BUF:\n%s\n", buf)
}