func layout(g *gocui.Gui) error {
maxX, maxY := g.Size()
if v, err := g.SetView("side", -1, -1, 30, maxY); err != nil {
if err != gocui.ErrorUnkView {
return err
}
v.Highlight = true
fmt.Fprintln(v, "Item 1")
fmt.Fprintln(v, "Item 2")
fmt.Fprintln(v, "Item 3")
fmt.Fprintln(v, "Item 4")
}
if v, err := g.SetView("main", 30, -1, maxX, maxY); err != nil {
if err != gocui.ErrorUnkView {
return err
}
b, err := ioutil.ReadFile("Mark.Twain-Tom.Sawyer.txt")
if err != nil {
panic(err)
}
fmt.Fprintf(v, "%s", b)
v.Editable = true
if err := g.SetCurrentView("main"); err != nil {
return err
}
}
return nil
}
func nextView(g *gocui.Gui, v *gocui.View) error {
currentView := g.CurrentView()
if currentView == nil || currentView.Name() == "side" {
return g.SetCurrentView("main")
}
return g.SetCurrentView("side")
}
func delMsg(g *gocui.Gui, v *gocui.View) error {
if err := g.DeleteView("msg"); err != nil {
return err
}
if err := g.SetCurrentView("side"); err != nil {
return err
}
return nil
}
func getLine(g *gocui.Gui, v *gocui.View) error {
var l string
var err error
_, cy := v.Cursor()
if l, err = v.Line(cy); err != nil {
l = ""
}
maxX, maxY := g.Size()
if v, err := g.SetView("msg", maxX/2-30, maxY/2, maxX/2+30, maxY/2+2); err != nil {
if err != gocui.ErrorUnkView {
return err
}
fmt.Fprintln(v, l)
if err := g.SetCurrentView("msg"); err != nil {
return err
}
}
return nil
}