2 files changed, 14 insertions(+), 1 deletions(-)

M termutil/buffer.go
M termutil/line.go

@@ 130,6 130,7 @@ func (buffer *Buffer) areaScrollDown(lines uint16) {
 		i--
 		if i >= top+uint64(lines) {
 			buffer.lines[i] = buffer.lines[i-uint64(lines)]
+			buffer.lines[i].setDirty(true)
 		} else {
 			buffer.lines[i] = newLine()
 		}


@@ 144,6 145,7 @@ func (buffer *Buffer) areaScrollUp(lines uint16) {
 		from := i + uint64(lines)
 		if from < bottom {
 			buffer.lines[i] = buffer.lines[from]
+			buffer.lines[i].setDirty(true)
 		} else {
 			buffer.lines[i] = newLine()
 		}


@@ 372,6 374,9 @@ func (buffer *Buffer) index() {
 		if uint64(len(buffer.lines)) > maxLines {
 			copy(buffer.lines, buffer.lines[uint64(len(buffer.lines))-maxLines:])
 			buffer.lines = buffer.lines[:maxLines]
+			for _, line := range buffer.lines {
+				line.setDirty(true)
+			}
 		}
 	}
 	buffer.cursorPosition.Line++


@@ 783,7 788,7 @@ func (buffer *Buffer) defaultCell(applyEffects bool) Cell {
 		attr = attr.Underline(false)
 		attr = attr.Dim(false)
 	}
-	return Cell{attr: attr}
+	return Cell{attr: attr, dirty: true}
 }
 
 func (buffer *Buffer) IsNewLineMode() bool {

@@ 30,6 30,12 @@ func (line *Line) append(cells ...Cell) {
 	line.cells = append(line.cells, cells...)
 }
 
+func (line *Line) setDirty(d bool) {
+	for _, cell := range line.cells {
+		cell.SetDirty(d)
+	}
+}
+
 func (line *Line) shrink(width uint16) {
 	if line.Len() <= width {
 		return


@@ 40,6 46,7 @@ func (line *Line) shrink(width uint16) {
 		if cell.r.Rune == 0 && remove > 0 {
 			remove--
 		} else {
+			cell.SetDirty(true)
 			cells = append(cells, cell)
 		}
 	}


@@ 54,6 61,7 @@ func (line *Line) wrap(width uint16) []Line {
 	current.wrapped = line.wrapped
 
 	for _, cell := range line.cells {
+		cell.SetDirty(true)
 		if len(current.cells) == int(width) {
 			output = append(output, current)
 			current = newLine()