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colors.go
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/
colors.go
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// 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.
package main
import (
"errors"
"fmt"
"log"
"github.com/awesome-gocui/gocui"
)
func main() {
g, err := gocui.NewGui(gocui.OutputNormal, true)
if err != nil {
log.Panicln(err)
}
defer g.Close()
g.SetManagerFunc(layout)
if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
log.Panicln(err)
}
if err := g.MainLoop(); err != nil && !errors.Is(err, gocui.ErrQuit) {
log.Panicln(err)
}
}
func layout(g *gocui.Gui) error {
maxX, maxY := g.Size()
if v, err := g.SetView("colors", maxX/2-7, maxY/2-12, maxX/2+7, maxY/2+13, 0); err != nil {
if !errors.Is(err, gocui.ErrUnknownView) {
return err
}
for i := 0; i <= 7; i++ {
for _, j := range []int{1, 4, 7} {
fmt.Fprintf(v, "Hello \033[3%d;%dmcolors!\033[0m\n", i, j)
}
}
if _, err := g.SetCurrentView("colors"); err != nil {
return err
}
}
return nil
}
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}