boltbrowser/screen.go

44 lines
918 B
Go

package main
import "github.com/nsf/termbox-go"
// Screen is a basic structure for all of the applications screens
type Screen interface {
handleKeyEvent(event termbox.Event) int
performLayout()
drawScreen(style Style)
}
const (
// BrowserScreenIndex is the index
BrowserScreenIndex = iota
// AboutScreenIndex The idx number for the 'About' Screen
AboutScreenIndex
// ExitScreenIndex The idx number for Exiting
ExitScreenIndex
)
func defaultScreensForData(db *BoltDB) []Screen {
var viewPort ViewPort
browserScreen := BrowserScreen{db: db, viewPort: viewPort}
aboutScreen := AboutScreen(0)
screens := [...]Screen{
&browserScreen,
&aboutScreen,
}
return screens[:]
}
func drawBackground(bg termbox.Attribute) {
termbox.Clear(0, bg)
}
func layoutAndDrawScreen(screen Screen, style Style) {
screen.performLayout()
drawBackground(style.defaultBg)
screen.drawScreen(style)
termbox.Flush()
}