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|
package grid
import (
"math"
"strings"
"github.com/muesli/reflow/ansi"
)
// Row contains settings for a single row within the parent Grid
type Row struct {
Width int
Cells []Cell
}
func getWidthFlexCells(widthTotal int, count int) (int, int) {
if count <= 0 {
return widthTotal, 0
}
remainder := widthTotal % count
width := int(math.Floor(float64(widthTotal) / float64(count)))
return width, remainder
}
func updateCells(widthTotal int, widthGutter int, cells []Cell) []Cell {
widthFlex := widthTotal
countFlexWidthCells := 0
var cellsFiltered = make([]Cell, 0)
for _, cell := range cells {
if cell.Width < 0 {
continue
}
if cell.VisibleMinWidth > 0 && cell.VisibleMinWidth > widthTotal {
continue
}
if cell.Width <= 0 {
countFlexWidthCells++
}
widthFlex -= cell.Width
cellsFiltered = append(cellsFiltered, cell)
}
widthFlex = widthFlex - (widthGutter * (len(cellsFiltered) - 1))
if widthFlex <= 0 {
return cellsFiltered
}
widthFlexCellsWithoutRemainder, widthRemainder := getWidthFlexCells(widthFlex, countFlexWidthCells)
for i, cell := range cellsFiltered {
if cell.Width <= 0 && widthRemainder > 0 {
widthRemainder--
cellsFiltered[i].Width = widthFlexCellsWithoutRemainder + 1
continue
}
if cell.Width <= 0 {
cellsFiltered[i].Width = widthFlexCellsWithoutRemainder
continue
}
}
return cellsFiltered
}
func renderRow(row Row, config gridConfig) string {
lines := []string{}
heightMax := 0
widthLinePreviousCells := 0
cells := updateCells(row.Width, config.widthGutter, row.Cells)
cellLastIndex := (len(cells) - 1)
for i, cell := range cells {
if i == cellLastIndex {
config.widthGutter = 0
}
lines, heightMax = getLines(cell, lines, heightMax, widthLinePreviousCells, config)
widthLinePreviousCells += cell.Width + config.widthGutter
}
for i := range lines {
if ansi.PrintableRuneWidth(lines[i]) > row.Width {
lines[i] = lines[i][:row.Width]
}
}
return strings.Join(lines, "\n")
}
|
