wehub-resource-sync
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package ui
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import "strings"
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// renderBarsDot draws bars using Braille dot patterns instead of solid blocks.
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// Each terminal cell maps to a 4x2 Braille grid, so dots are filled from the
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// bottom up proportionally to the band level, giving a stippled texture.
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func (v *Visualizer) renderBarsDot(bands []float64) string {
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height := v.Rows
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dotRows := height * 4
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lines := make([]string, height)
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bandCount := len(bands)
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for row := range height {
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var run strings.Builder
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var sb strings.Builder
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curTag := -1
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for b := range bandCount {
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charsPerBand := visBandWidth(bandCount, b)
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for c := range charsPerBand {
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var braille rune = '\u2800'
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for dr := range 4 {
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for dc := range 2 {
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dotRow := row*4 + dr
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// Invert: bars grow from bottom.
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dotY := float64(dotRows-1-dotRow) / float64(dotRows)
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if dotY < bands[b] {
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braille |= brailleBit[dr][dc]
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}
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}
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}
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norm := float64(height-1-row) / float64(height)
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tag := specTag(norm)
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if tag != curTag {
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flushStyleRun(&sb, &run, curTag)
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curTag = tag
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}
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run.WriteRune(braille)
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// Add gap between characters within the same band.
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_ = c
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}
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if b < bandCount-1 {
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// Gap character inherits current style run.
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run.WriteByte(' ')
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}
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}
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flushStyleRun(&sb, &run, curTag)
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lines[row] = sb.String()
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}
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return strings.Join(lines, "\n")
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}
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