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generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2025-01-18 05:01:34 +0000


 


0 12:59:18 -0400
committer  Drew DeVault <sir@cmpwn.com>  2019-03-30 12:59:18 -0400

Use tcell.Style.Reverse instead of black on white' href='/akspecs/aerc/commit/lib/ui/text.go?h=0.4.0&id=84965d680cff655c7734070ef93fd3c1e2177748'>84965d6 ^

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package ui

import (
	"github.com/gdamore/tcell"
	"github.com/mattn/go-runewidth"
)

const (
	TEXT_LEFT   = iota
	TEXT_CENTER = iota
	TEXT_RIGHT  = iota
)

type Text struct {
	text         string
	strategy     uint
	fg           tcell.Color
	bg           tcell.Color
	reverse      bool
	onInvalidate func(d Drawable)
}

func NewText(text string) *Text {
	return &Text{
		bg:   tcell.ColorDefault,
		fg:   tcell.ColorDefault,
		text: text,
	}
}

func (t *Text) Text(text string) *Text {
	t.text = text
	t.Invalidate()
	return t
}

func (t *Text) Strategy(strategy uint) *Text {
	t.strategy = strategy
	t.Invalidate()
	return t
}

func (t *Text) Color(fg tcell.Color, bg tcell.Color) *Text {
	t.fg = fg
	t.bg = bg
	t.Invalidate()
	return t
}

func (t *Text) Reverse(reverse bool) *Text {
	t.reverse = reverse
	t.Invalidate()
	return t
}

func (t *Text) Draw(ctx *Context) {
	size := runewidth.StringWidth(t.text)
	x := 0
	if t.strategy == TEXT_CENTER {
		x = (ctx.Width() - size) / 2
	}
	if t.strategy == TEXT_RIGHT {
		x = ctx.Width() - size
	}
	style := tcell.StyleDefault.Background(t.bg).Foreground(t.fg)
	if t.reverse {
		style = style.Reverse(true)
	}
	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', style)
	ctx.Printf(x, 0, style, t.text)
}

func (t *Text) OnInvalidate(onInvalidate func(d Drawable)) {
	t.onInvalidate = onInvalidate
}

func (t *Text) Invalidate() {
	if t.onInvalidate != nil {
		t.onInvalidate(t)
	}
}