chore: revert "feat(cellbuf): add Bubblezone support"

This reverts commit 318a466.

cellbuf/cell.go

@@ -25,16 +25,12 @@ type Cell struct {
 
 	// Width is the mono-space width of the grapheme cluster.
 	Width int
-
-	// Zone is the zone id of the cell.
-	Zone int
 }
 
 // Equal returns whether the cell is equal to the other cell.
 func (c Cell) Equal(o Cell) bool {
 	return c.Width == o.Width &&
 		c.Content == o.Content &&
-		c.Zone == o.Zone &&
 		c.Style.Equal(o.Style) &&
 		c.Link.Equal(o.Link)
 }
@@ -43,7 +39,6 @@ func (c Cell) Equal(o Cell) bool {
 func (c Cell) Empty() bool {
 	return c.Content == "" &&
 		c.Width == 0 &&
-		c.Zone == 0 &&
 		c.Style.Empty() &&
 		c.Link.Empty()
 }
@@ -52,7 +47,6 @@ func (c Cell) Empty() bool {
 func (c *Cell) Reset() {
 	c.Content = ""
 	c.Width = 0
-	c.Zone = 0
 	c.Style.Reset()
 	c.Link.Reset()
 }

cellbuf/screen.go

@@ -69,7 +69,6 @@ func RenderLine(d Screen, n int) (w int, line string) {
 func RenderLineWithProfile(d Screen, n int, p colorprofile.Profile) (w int, line string) {
 	var pen Style
 	var link Link
-	var zone int
 	var buf bytes.Buffer
 	var pendingLine string
 	var pendingWidth int // this ignores space cells until we hit a non-space cell
@@ -114,17 +113,6 @@ func RenderLineWithProfile(d Screen, n int, p colorprofile.Profile) (w int, line
 				link = cellLink
 			}
 
-			// Write the Bubblezone escape sequence
-			if cell.Zone != zone {
-				writePending()
-				if cell.Zone == 0 {
-					buf.WriteString(ansi.SetZone(zone)) //nolint:errcheck
-				} else {
-					buf.WriteString(ansi.SetZone(cell.Zone)) //nolint:errcheck
-				}
-				zone = cell.Zone
-			}
-
 			// We only write the cell content if it's not empty. If it is, we
 			// append it to the pending line and width to be evaluated later.
 			if cell.Equal(spaceCell) {

cellbuf/screen_write.go

@@ -19,7 +19,6 @@ func setContent(
 	var cell Cell
 	var pen Style
 	var link Link
-	var zone int
 	var x, y int
 
 	p := ansi.GetParser()
@@ -57,7 +56,6 @@ func setContent(
 			cell.Width = width
 			cell.Style = pen
 			cell.Link = link
-			cell.Zone = zone
 
 			dis.SetCell(x, y, cell) //nolint:errcheck
 
@@ -78,8 +76,6 @@ func setContent(
 				switch p.Cmd {
 				case 'm': // SGR - Select Graphic Rendition
 					handleSgr(p, &pen)
-				case 'z': // Bubblezone
-					handleZone(p, &zone)
 				}
 			case ansi.HasOscPrefix(seq) && p.Cmd != 0:
 				switch p.Cmd {
@@ -222,17 +218,3 @@ func handleHyperlinks(p *ansi.Parser, link *Link) {
 	}
 	link.URL = string(params[2])
 }
-
-// handleZone handles Bubblezone escape sequences.
-func handleZone(p *ansi.Parser, zone *int) {
-	if p.ParamsLen == 0 {
-		return
-	}
-
-	z := ansi.Param(p.Params[0]).Param()
-	if *zone == z {
-		*zone = 0
-	} else {
-		*zone = z
-	}
-}