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package ansi
import (
"io"
)
// A EmphasisElement is used to render emphasis.
type EmphasisElement struct {
Children []ElementRenderer
Level int
}
func (e *EmphasisElement) Render(w io.Writer, ctx RenderContext) error {
style := ctx.options.Styles.Emph
if e.Level > 1 {
style = ctx.options.Styles.Strong
}
return e.doRender(w, ctx, style)
}
func (e *EmphasisElement) StyleOverrideRender(w io.Writer, ctx RenderContext, style StylePrimitive) error {
base := ctx.options.Styles.Emph
if e.Level > 1 {
base = ctx.options.Styles.Strong
}
return e.doRender(w, ctx, cascadeStylePrimitives(base, style))
}
func (e *EmphasisElement) doRender(w io.Writer, ctx RenderContext, style StylePrimitive) error {
for _, child := range e.Children {
if r, ok := child.(StyleOverriderElementRenderer); ok {
if err := r.StyleOverrideRender(w, ctx, style); err != nil {
return err
}
} else {
if err := child.Render(w, ctx); err != nil {
return err
}
}
}
return nil
}
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