68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package mujica
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import (
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"strings"
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"github.com/egoist/mygo/ui"
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"mujicaui/internal"
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"mujicaui/theme"
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)
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// AnsiTextOptions configure an AnsiText.
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type AnsiTextOptions struct {
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// Wrap breaks long lines at the width.
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Wrap bool
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}
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// AnsiText renders terminal output with its SGR styles.
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func AnsiText(c *ui.Context, text string, opts AnsiTextOptions) *ui.Element {
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k := Tokens(c)
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col := ui.Column(c).Font(theme.MonoFont).TextColor(k.Text).Shrink(0)
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col.Children(func() {
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var st internal.AnsiStyle
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for _, line := range strings.Split(text, "\n") {
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var spans []internal.AnsiSpan
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spans, st = internal.ParseAnsi(line, st)
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out := make([]ui.Span, 0, len(spans))
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for _, s := range spans {
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out = append(out, ansiTextSpan(k, s))
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}
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if len(out) == 0 {
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out = append(out, ui.Span{Text: " "})
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}
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t := ui.RichText(c, out...)
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if !opts.Wrap {
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t.NoWrap()
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}
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}
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})
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return col
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}
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// ansiTextSpan maps one parsed span onto theme-readable colors.
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func ansiTextSpan(k theme.Tokens, s internal.AnsiSpan) ui.Span {
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fg, hasFG := internal.AnsiResolve(k.Dark, s.Style.FG)
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if !hasFG {
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fg = k.Text
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}
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bg, hasBG := internal.AnsiResolve(k.Dark, s.Style.BG)
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if s.Style.Inverse {
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if !hasBG {
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bg = k.Surface
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}
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fg, bg, hasBG = bg, fg, true
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}
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if s.Style.Dim {
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fg = fg.Mix(k.Surface, 0.4)
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}
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out := ui.Span{Text: s.Text, Color: fg, Italic: s.Style.Italic, Underline: s.Style.Underline, Strikethrough: s.Style.Strike}
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if s.Style.Bold {
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out.Weight = 700
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}
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if hasBG {
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out.Background = bg
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}
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return out
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}
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