55 lines
879 B
Go
55 lines
879 B
Go
package ui
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import (
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"github.com/gdamore/tcell/v2"
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"github.com/mattn/go-runewidth"
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)
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const (
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TEXT_LEFT = iota
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TEXT_CENTER = iota
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TEXT_RIGHT = iota
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)
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type Text struct {
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text string
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strategy uint
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style tcell.Style
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}
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func NewText(text string, style tcell.Style) *Text {
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return &Text{
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text: text,
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style: style,
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}
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}
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func (t *Text) Text(text string) *Text {
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t.text = text
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t.Invalidate()
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return t
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}
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func (t *Text) Strategy(strategy uint) *Text {
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t.strategy = strategy
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t.Invalidate()
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return t
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}
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func (t *Text) Draw(ctx *Context) {
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size := runewidth.StringWidth(t.text)
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x := 0
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if t.strategy == TEXT_CENTER {
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x = (ctx.Width() - size) / 2
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}
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if t.strategy == TEXT_RIGHT {
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x = ctx.Width() - size
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}
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ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', t.style)
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ctx.Printf(x, 0, t.style, "%s", t.text)
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}
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func (t *Text) Invalidate() {
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Invalidate()
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}
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