From 1418e1b9dc41d8f69bccb8de0fe0f1fb6835ce11 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Mon, 26 Feb 2018 22:54:39 -0500
Subject: Split UI library and widgets

---
 ui/exline.go | 127 -----------------------------------------------------------
 1 file changed, 127 deletions(-)
 delete mode 100644 ui/exline.go

(limited to 'ui/exline.go')

diff --git a/ui/exline.go b/ui/exline.go
deleted file mode 100644
index a377cd7..0000000
--- a/ui/exline.go
+++ /dev/null
@@ -1,127 +0,0 @@
-package ui
-
-import (
-	tb "github.com/nsf/termbox-go"
-)
-
-// TODO: history
-// TODO: tab completion
-// TODO: commit
-// TODO: cancel (via esc/ctrl+c)
-// TODO: scrolling
-
-type ExLine struct {
-	command *string
-	commit  func(cmd *string)
-	index   int
-	scroll  int
-
-	onInvalidate func(d Drawable)
-}
-
-func NewExLine() *ExLine {
-	cmd := ""
-	return &ExLine{command: &cmd}
-}
-
-func (ex *ExLine) OnInvalidate(onInvalidate func(d Drawable)) {
-	ex.onInvalidate = onInvalidate
-}
-
-func (ex *ExLine) Invalidate() {
-	if ex.onInvalidate != nil {
-		ex.onInvalidate(ex)
-	}
-}
-
-func (ex *ExLine) Draw(ctx *Context) {
-	cell := tb.Cell{
-		Fg: tb.ColorDefault,
-		Bg: tb.ColorDefault,
-		Ch: ' ',
-	}
-	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), cell)
-	ctx.Printf(0, 0, cell, ":%s", *ex.command)
-	tb.SetCursor(ctx.X()+ex.index-ex.scroll+1, ctx.Y())
-}
-
-func (ex *ExLine) insert(ch rune) {
-	newCmd := (*ex.command)[:ex.index] + string(ch) + (*ex.command)[ex.index:]
-	ex.command = &newCmd
-	ex.index++
-	ex.Invalidate()
-}
-
-func (ex *ExLine) deleteWord() {
-	// TODO: Break on any of / " '
-	if len(*ex.command) == 0 {
-		return
-	}
-	i := ex.index - 1
-	if (*ex.command)[i] == ' ' {
-		i--
-	}
-	for ; i >= 0; i-- {
-		if (*ex.command)[i] == ' ' {
-			break
-		}
-	}
-	newCmd := (*ex.command)[:i+1] + (*ex.command)[ex.index:]
-	ex.command = &newCmd
-	ex.index = i + 1
-	ex.Invalidate()
-}
-
-func (ex *ExLine) deleteChar() {
-	if len(*ex.command) > 0 && ex.index != len(*ex.command) {
-		newCmd := (*ex.command)[:ex.index] + (*ex.command)[ex.index+1:]
-		ex.command = &newCmd
-		ex.Invalidate()
-	}
-}
-
-func (ex *ExLine) backspace() {
-	if len(*ex.command) > 0 && ex.index != 0 {
-		newCmd := (*ex.command)[:ex.index-1] + (*ex.command)[ex.index:]
-		ex.command = &newCmd
-		ex.index--
-		ex.Invalidate()
-	}
-}
-
-func (ex *ExLine) Event(event tb.Event) bool {
-	switch event.Type {
-	case tb.EventKey:
-		switch event.Key {
-		case tb.KeySpace:
-			ex.insert(' ')
-		case tb.KeyBackspace, tb.KeyBackspace2:
-			ex.backspace()
-		case tb.KeyCtrlD, tb.KeyDelete:
-			ex.deleteChar()
-		case tb.KeyCtrlB, tb.KeyArrowLeft:
-			if ex.index > 0 {
-				ex.index--
-				ex.Invalidate()
-			}
-		case tb.KeyCtrlF, tb.KeyArrowRight:
-			if ex.index < len(*ex.command) {
-				ex.index++
-				ex.Invalidate()
-			}
-		case tb.KeyCtrlA, tb.KeyHome:
-			ex.index = 0
-			ex.Invalidate()
-		case tb.KeyCtrlE, tb.KeyEnd:
-			ex.index = len(*ex.command)
-			ex.Invalidate()
-		case tb.KeyCtrlW:
-			ex.deleteWord()
-		default:
-			if event.Ch != 0 {
-				ex.insert(event.Ch)
-			}
-		}
-	}
-	return true
-}
-- 
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