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package ansi
import (
"bytes"
"io"
"github.com/charmbracelet/lipgloss"
"github.com/charmbracelet/lipgloss/table"
"github.com/muesli/reflow/indent"
astext "github.com/yuin/goldmark/extension/ast"
)
// A TableElement is used to render tables.
type TableElement struct {
lipgloss *table.Table
table *astext.Table
header []string
row []string
}
// A TableRowElement is used to render a single row in a table.
type TableRowElement struct{}
// A TableHeadElement is used to render a table's head element.
type TableHeadElement struct{}
// A TableCellElement is used to render a single cell in a row.
type TableCellElement struct {
Children []ElementRenderer
Head bool
}
func (e *TableElement) Render(w io.Writer, ctx RenderContext) error {
bs := ctx.blockStack
var indentation uint
var margin uint
rules := ctx.options.Styles.Table
if rules.Indent != nil {
indentation = *rules.Indent
}
if rules.Margin != nil {
margin = *rules.Margin
}
iw := indent.NewWriterPipe(w, indentation+margin, func(wr io.Writer) {
renderText(w, ctx.options.ColorProfile, bs.Current().Style.StylePrimitive, " ")
})
style := bs.With(rules.StylePrimitive)
renderText(iw, ctx.options.ColorProfile, bs.Current().Style.StylePrimitive, rules.BlockPrefix)
renderText(iw, ctx.options.ColorProfile, style, rules.Prefix)
width := int(ctx.blockStack.Width(ctx))
ctx.table.lipgloss = table.New().Width(width)
return nil
}
func (e *TableElement) setStyles(ctx RenderContext) {
ctx.table.lipgloss = ctx.table.lipgloss.StyleFunc(func(row, col int) lipgloss.Style {
st := lipgloss.NewStyle().Inline(true)
if m := ctx.options.Styles.Table.Margin; m != nil {
st = st.Padding(0, int(*m))
}
if row == 0 {
st = st.Bold(true)
}
switch e.table.Alignments[col] {
case astext.AlignLeft:
st = st.Align(lipgloss.Left).PaddingRight(0)
case astext.AlignCenter:
st = st.Align(lipgloss.Center)
case astext.AlignRight:
st = st.Align(lipgloss.Right).PaddingLeft(0)
}
return st
})
}
func (e *TableElement) setBorders(ctx RenderContext) {
rules := ctx.options.Styles.Table
border := lipgloss.NormalBorder()
if rules.RowSeparator != nil && rules.ColumnSeparator != nil {
border = lipgloss.Border{
Top: *rules.RowSeparator,
Bottom: *rules.RowSeparator,
Left: *rules.ColumnSeparator,
Right: *rules.ColumnSeparator,
Middle: *rules.CenterSeparator,
}
}
ctx.table.lipgloss.Border(border)
ctx.table.lipgloss.BorderTop(false)
ctx.table.lipgloss.BorderLeft(false)
ctx.table.lipgloss.BorderRight(false)
ctx.table.lipgloss.BorderBottom(false)
}
func (e *TableElement) Finish(_ io.Writer, ctx RenderContext) error {
rules := ctx.options.Styles.Table
e.setStyles(ctx)
e.setBorders(ctx)
ow := ctx.blockStack.Current().Block
if _, err := ow.WriteString(ctx.table.lipgloss.String()); err != nil {
return err
}
renderText(ow, ctx.options.ColorProfile, ctx.blockStack.With(rules.StylePrimitive), rules.Suffix)
renderText(ow, ctx.options.ColorProfile, ctx.blockStack.Current().Style.StylePrimitive, rules.BlockSuffix)
ctx.table.lipgloss = nil
return nil
}
func (e *TableRowElement) Finish(_ io.Writer, ctx RenderContext) error {
if ctx.table.lipgloss == nil {
return nil
}
ctx.table.lipgloss.Row(ctx.table.row...)
ctx.table.row = []string{}
return nil
}
func (e *TableHeadElement) Finish(_ io.Writer, ctx RenderContext) error {
if ctx.table.lipgloss == nil {
return nil
}
ctx.table.lipgloss.Headers(ctx.table.header...)
ctx.table.header = []string{}
return nil
}
func (e *TableCellElement) Render(_ io.Writer, ctx RenderContext) error {
var b bytes.Buffer
style := ctx.options.Styles.Table.StylePrimitive
for _, child := range e.Children {
if r, ok := child.(StyleOverriderElementRenderer); ok {
if err := r.StyleOverrideRender(&b, ctx, style); err != nil {
return err
}
} else {
var bb bytes.Buffer
if err := child.Render(&bb, ctx); err != nil {
return err
}
el := &BaseElement{
Token: bb.String(),
Style: style,
}
if err := el.Render(&b, ctx); err != nil {
return err
}
}
}
if e.Head {
ctx.table.header = append(ctx.table.header, b.String())
} else {
ctx.table.row = append(ctx.table.row, b.String())
}
return nil
}
|
