On-screen keyboard widget for ebiten
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2.5 KiB

package game
import (
"fmt"
"github.com/hajimehoshi/ebiten/v2"
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
"github.com/hajimehoshi/ebiten/v2/inpututil"
)
import "code.rocketnine.space/tslocum/kibodo"
type game struct {
w, h int
k *kibodo.Keyboard
userInput []byte
op *ebiten.DrawImageOptions
spinnerIndex int
buffer *ebiten.Image
}
var spinner = []byte(`-\|/`)
// NewDemoGame returns a new kibodo demo game.
func NewDemoGame() *game {
k := kibodo.NewKeyboard()
k.SetAllowUserHide(true)
k.SetPassThroughPhysicalInput(true)
k.SetKeys(kibodo.KeysQWERTY)
k.SetHideShortcuts([]ebiten.Key{ebiten.KeyEscape})
g := &game{
k: k,
op: &ebiten.DrawImageOptions{
Filter: ebiten.FilterNearest,
},
}
go g.showKeyboard()
return g
}
func (g *game) showKeyboard() {
if g.k.Visible() {
return
}
// Clear current input
g.userInput = nil
// Show keyboard
ch := make(chan *kibodo.Input, 10)
g.k.Show(ch)
// Handle input
for input := range ch {
if input.Rune > 0 {
g.userInput = append(g.userInput, []byte(string(input.Rune))...)
continue
}
if input.Key == ebiten.KeyBackspace {
s := string(g.userInput)
if len(s) > 0 {
g.userInput = []byte(s[:len(s)-1])
}
continue
} else if input.Key == ebiten.KeyEnter {
g.userInput = nil
continue
} else if input.Key < 0 {
continue
}
g.userInput = append(g.userInput, []byte("<"+input.Key.String()+">")...)
}
g.userInput = []byte("(Hidden, click to show keyboard)")
}
func (g *game) Layout(outsideWidth, outsideHeight int) (int, int) {
s := ebiten.DeviceScaleFactor()
outsideWidth, outsideHeight = int(float64(outsideWidth)*s), int(float64(outsideHeight)*s)
if g.w == outsideWidth && g.h == outsideHeight {
return outsideWidth, outsideHeight
}
g.w, g.h = outsideWidth, outsideHeight
g.buffer = ebiten.NewImage(g.w, g.h)
y := 200
if g.h > g.w && (g.h-g.w) > 200 {
y = g.h - g.w
}
g.k.SetRect(0, y, g.w, g.h-y)
return outsideWidth, outsideHeight
}
func (g *game) Update() error {
if inpututil.IsMouseButtonJustPressed(ebiten.MouseButtonLeft) {
go g.showKeyboard()
}
return g.k.Update()
}
func (g *game) Draw(screen *ebiten.Image) {
g.k.Draw(screen)
g.buffer.Clear()
ebitenutil.DebugPrint(g.buffer, fmt.Sprintf("FPS %0.0f %c\nTPS %0.0f\n\n%s", ebiten.CurrentFPS(), spinner[g.spinnerIndex], ebiten.CurrentTPS(), g.userInput))
g.op.GeoM.Reset()
g.op.GeoM.Translate(3, 0)
g.op.GeoM.Scale(2, 2)
screen.DrawImage(g.buffer, g.op)
g.spinnerIndex++
if g.spinnerIndex == 4 {
g.spinnerIndex = 0
}
}