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61 lines
2.0 KiB
Go
61 lines
2.0 KiB
Go
// Copyright 2012 Apcera Inc. All rights reserved.
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package termtables
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import "strings"
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type lineType int
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// These lines are for horizontal rules; these indicate desired styling,
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// but simplistic (pure ASCII) markup characters may end up leaving the
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// variant lines indistinguishable from LINE_INNER.
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const (
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// LINE_INNER *must* be the default; where there are vertical lines drawn
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// across an inner line, the character at that position should indicate
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// that the vertical line goes both up and down from this horizontal line.
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LINE_INNER lineType = iota
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// LINE_TOP has only descenders
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LINE_TOP
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// LINE_SUBTOP has only descenders in the middle, but goes both up and
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// down at the far left & right edges.
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LINE_SUBTOP
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// LINE_BOTTOM has only ascenders.
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LINE_BOTTOM
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)
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// A Separator is a horizontal rule line, with associated information which
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// indicates where in a table it is, sufficient for simple cases to let
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// clean tables be drawn. If a row-spanning cell is created, then this will
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// be insufficient: we can get away with hand-waving of "well, it's showing
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// where the border would be" but a more capable handling will require
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// structure reworking. Patches welcome.
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type Separator struct {
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where lineType
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}
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// Render returns the string representation of a horizontal rule line in the
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// table.
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func (s *Separator) Render(style *renderStyle) string {
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// loop over getting dashes
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parts := []string{}
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for i := 0; i < style.columns; i++ {
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w := style.PaddingLeft + style.CellWidth(i) + style.PaddingRight
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parts = append(parts, strings.Repeat(style.BorderX, w))
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}
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switch s.where {
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case LINE_TOP:
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return style.BorderTopLeft + strings.Join(parts, style.BorderTop) + style.BorderTopRight
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case LINE_SUBTOP:
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return style.BorderLeft + strings.Join(parts, style.BorderTop) + style.BorderRight
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case LINE_BOTTOM:
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return style.BorderBottomLeft + strings.Join(parts, style.BorderBottom) + style.BorderBottomRight
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case LINE_INNER:
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return style.BorderLeft + strings.Join(parts, style.BorderI) + style.BorderRight
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}
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panic("not reached")
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}
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