fix: #226, unicode strings display in paragraph, table and list

widgets/list.go

@@ -8,6 +8,7 @@ import (
 	"image"
 
 	. "github.com/gizak/termui"
+	rw "github.com/mattn/go-runewidth"
 )
 
 type List struct {
@@ -57,7 +58,7 @@ func (self *List) Draw(buf *Buffer) {
 					break
 				} else {
 					buf.SetCell(NewCell(cells[j].Rune, style), point)
-					point = point.Add(image.Pt(1, 0))
+					point = point.Add(image.Pt(rw.RuneWidth(cells[j].Rune), 0))
 				}
 			}
 		}

widgets/paragraph.go

@@ -40,7 +40,8 @@ func (self *Paragraph) Draw(buf *Buffer) {
 			break
 		}
 		row = TrimCells(row, self.Inner.Dx())
-		for x, cell := range row {
+		for signal := range BuildCellChannel(row) {
+			x, cell := signal.X, signal.Cell
 			buf.SetCell(cell, image.Pt(x, y).Add(self.Inner.Min))
 		}
 	}

widgets/table.go

@@ -74,7 +74,8 @@ func (self *Table) Draw(buf *Buffer) {
 			col := ParseText(row[j], rowStyle)
 			// draw row cell
 			if len(col) > columnWidths[j] || self.TextAlign == AlignLeft {
-				for k, cell := range col {
+				for signal := range BuildCellChannel(col) {
+					k, cell := signal.X, signal.Cell
 					if k == columnWidths[j] || colXCoordinate+k == self.Inner.Max.X {
 						cell.Rune = ELLIPSES
 						buf.SetCell(cell, image.Pt(colXCoordinate+k-1, yCoordinate))
@@ -86,12 +87,14 @@ func (self *Table) Draw(buf *Buffer) {
 			} else if self.TextAlign == AlignCenter {
 				xCoordinateOffset := (columnWidths[j] - len(col)) / 2
 				stringXCoordinate := xCoordinateOffset + colXCoordinate
-				for k, cell := range col {
+				for signal := range BuildCellChannel(col) {
+					k, cell := signal.X, signal.Cell
 					buf.SetCell(cell, image.Pt(stringXCoordinate+k, yCoordinate))
 				}
 			} else if self.TextAlign == AlignRight {
 				stringXCoordinate := MinInt(colXCoordinate+columnWidths[j], self.Inner.Max.X) - len(col)
-				for k, cell := range col {
+				for signal := range BuildCellChannel(col) {
+					k, cell := signal.X, signal.Cell
 					buf.SetCell(cell, image.Pt(stringXCoordinate+k, yCoordinate))
 				}
 			}