GoLang: gocui border color

The AI bot is acting up so I'm asking here:

I have this code which just outputs two windows and instead of the background, I want the border to be green.

I've tried:

g.Highlight = true

per docs that still doesn't work.

Here is my entire code:

package main
import (
// "fmt"
"log"
"github.com/jroimartin/gocui"
)
func main() {
// Create a new gocui view
g, err := gocui.NewGui(gocui.OutputNormal)
if err != nil {
log.Panicln(err)
}
defer g.Close()
g.SetManagerFunc(layout)
if err := g.SetKeybinding("", 'q', gocui.ModNone, quit); err != nil {
log.Panicln(err)
}
if err := g.SetKeybinding("", '1', gocui.ModNone, view1); err != nil {
log.Panicln(err)
}
if err := g.SetKeybinding("", '2', gocui.ModNone, view2); err != nil {
log.Panicln(err)
}
if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
log.Panicln(err)
}
}
func updateView(g *gocui.Gui, v *gocui.View) error {
// Check if the view is active
if v != nil && v == g.CurrentView() {
// If the view is active, set its background color to yellow
v.BgColor = gocui.ColorYellow
} else {
// If the view is not active, set its background color to default (nothing)
v.BgColor = gocui.ColorDefault
}
return nil
}
func layout(g *gocui.Gui) error {
// maxX, maxY := g.Size()
g.Highlight = true
// Create a new view with the name "myView"
if v, err := g.SetView("view1", 0, 0, 20, 10); err != nil {
if err != gocui.ErrUnknownView {
log.Panicln(err)
}
// Set the default background color of the view to nothing
v.BgColor = gocui.ColorDefault
v.Title = "View 1"
v.Wrap = false
// fmt.Fprintln(v, "View 1")
}
// Set a second view with the name "myOtherView"
if v, err := g.SetView("view2", 25, 0, 45, 10); err != nil {
if err != gocui.ErrUnknownView {
log.Panicln(err)
}
// Set the default background color of the view to nothing
v.BgColor = gocui.ColorDefault
v.Title = "View 2"
v.Wrap = false
// fmt.Fprintln(v, "View 2")
}
return nil
}
func view1(g *gocui.Gui, v *gocui.View) error {
if _, err := g.SetCurrentView("view1"); err != nil {
return err
}
updateHighlighting(g, v)
return nil
}
func view2(g *gocui.Gui, v *gocui.View) error {
if _, err := g.SetCurrentView("view2"); err != nil {
return err
}
updateHighlighting(g, v)
return nil
}
func updateHighlighting(g *gocui.Gui, v *gocui.View) error {
current := g.CurrentView()
for _, view := range g.Views() {
if view == current {
current.BgColor = gocui.ColorGreen
} else {
view.BgColor = gocui.ColorDefault
}
}
return nil
}
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}

A View's frame is handled by the Gui that renders that frame. You have your Gui's highlight set to true already, but you don't set SelBgColor or SelFgColor.

From https://pkg.go.dev/github.com/jroimartin/gocui#Gui:

	// SelBgColor and SelFgColor allow to configure the background and
// foreground colors of the frame of the current view.
SelBgColor, SelFgColor Attribute
// If Highlight is true, Sel{Bg,Fg}Colors will be used to draw the
// frame of the current view.
Highlight bool

By changing the beginning of your layout to the following, adding g.SelFgColor = gocui.ColorGreen:

func layout(g *gocui.Gui) error {
// maxX, maxY := g.Size()
g.Highlight = true
g.SelFgColor = gocui.ColorGreen
...
...

Then you'll get a green border with black background:

If you don't want the background to be green also, take this line out:

> current.BgColor = gocui.ColorGreen

It's a little confusing at first because both View and Gui have SelFgColor SelBgColor and Highlight, but View's attributes control the selected text in the view, not the border of the current view in the Gui.