package d2ui import ( "strings" "time" "github.com/hajimehoshi/ebiten/inpututil" "github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource" "github.com/OpenDiablo2/OpenDiablo2/d2render" "github.com/OpenDiablo2/OpenDiablo2/d2render/d2surface" "github.com/hajimehoshi/ebiten" ) // TextBox represents a text input box type TextBox struct { text string x int y int visible bool enabled bool bgSprite *d2render.Sprite textLabel Label lineBar Label } func CreateTextbox() TextBox { bgSprite, _ := d2render.LoadSprite(d2resource.TextBox2, d2resource.PaletteUnits) result := TextBox{ bgSprite: bgSprite, textLabel: CreateLabel(d2resource.FontFormal11, d2resource.PaletteUnits), lineBar: CreateLabel(d2resource.FontFormal11, d2resource.PaletteUnits), enabled: true, visible: true, } result.lineBar.SetText("_") return result } func repeatingKeyPressed(key ebiten.Key) bool { const ( delay = 30 interval = 3 ) d := inpututil.KeyPressDuration(key) if d == 1 { return true } if d >= delay && (d-delay)%interval == 0 { return true } return false } func (v *TextBox) Render(target *d2surface.Surface) { if !v.visible { return } v.bgSprite.Render(target) v.textLabel.Render(target) if (time.Now().UnixNano()/1e6)&(1<<8) > 0 { v.lineBar.Render(target) } } func (v *TextBox) Advance(elapsed float64) { } func (v *TextBox) Update() { if !v.visible || !v.enabled { return } newText := string(ebiten.InputChars()) if len(newText) > 0 { v.text += newText v.SetText(v.text) } if repeatingKeyPressed(ebiten.KeyBackspace) { if len(v.text) >= 1 { v.text = v.text[:len(v.text)-1] } v.SetText(v.text) } } func (v *TextBox) GetText() string { return v.text } func (v *TextBox) SetText(newText string) { result := "" for _, c := range newText { if !strings.Contains("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", string(c)) { continue } result += string(c) } if len(result) > 15 { result = result[0:15] } v.text = result for { tw, _ := v.textLabel.GetTextMetrics(result) if tw > 150 { result = result[1:] continue } v.lineBar.SetPosition(v.x+6+int(tw), v.y+3) v.textLabel.SetText(result) break } } func (v *TextBox) GetSize() (width, height int) { return v.bgSprite.GetCurrentFrameSize() } func (v *TextBox) SetPosition(x, y int) { v.x = x v.y = y v.textLabel.SetPosition(v.x+6, v.y+3) v.lineBar.SetPosition(v.x+6+int(v.textLabel.Width), v.y+3) v.bgSprite.SetPosition(v.x, v.y+26) } func (v *TextBox) GetPosition() (x, y int) { return v.x, v.y } func (v *TextBox) GetVisible() bool { return v.visible } func (v *TextBox) SetVisible(visible bool) { v.visible = visible } func (v *TextBox) GetEnabled() bool { return v.enabled } func (v *TextBox) SetEnabled(enabled bool) { v.enabled = enabled } func (v *TextBox) SetPressed(pressed bool) { // no op } func (v *TextBox) GetPressed() bool { return false } func (v *TextBox) OnActivated(callback func()) { // no op } func (v *TextBox) Activate() { //no op }