change replaceCells to new interface

src/BufferLine.test.ts

@@ -71,7 +71,7 @@ describe('BufferLine', function(): void {
     line.set(2, [3, 'c', 0, 'c'.charCodeAt(0)]);
     line.set(3, [4, 'd', 0, 'd'.charCodeAt(0)]);
     line.set(4, [5, 'e', 0, 'e'.charCodeAt(0)]);
-    line.replaceCells(2, 4, [6, 'f', 0, 'f'.charCodeAt(0)]);
+    line.replaceCells(2, 4, CellData.fromCharData([6, 'f', 0, 'f'.charCodeAt(0)]));
     chai.expect(line.toArray()).eql([
       [1, 'a', 0, 'a'.charCodeAt(0)],
       [2, 'b', 0, 'b'.charCodeAt(0)],

src/BufferLine.ts

@@ -311,10 +311,9 @@ export class BufferLine implements IBufferLine {
     }
   }
 
-  public replaceCells(start: number, end: number, fillCharData: CharData): void {
-    this._cell.setFromCharData(fillCharData);
+  public replaceCells(start: number, end: number, fillCellData: ICellData): void {
     while (start < end  && start < this.length) {
-      this.setCell(start++, this._cell);
+      this.setCell(start++, fillCellData);
     }
   }
 

src/InputHandler.ts

@@ -7,7 +7,7 @@
 import { IInputHandler, IDcsHandler, IEscapeSequenceParser, IBuffer, IInputHandlingTerminal } from './Types';
 import { C0, C1 } from './common/data/EscapeSequences';
 import { CHARSETS, DEFAULT_CHARSET } from './core/data/Charsets';
-import { DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE } from './Buffer';
+import { DEFAULT_ATTR, NULL_CELL_WIDTH, NULL_CELL_CODE } from './Buffer';
 import { FLAGS } from './renderer/Types';
 import { wcwidth } from './CharWidth';
 import { EscapeSequenceParser } from './EscapeSequenceParser';
@@ -696,7 +696,7 @@ export class InputHandler extends Disposable implements IInputHandler {
     line.replaceCells(
       start,
       end,
-      [this._terminal.eraseAttr(), NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]
+      this._terminal.buffer.getNullCell(this._terminal.eraseAttr())
     );
     if (clearWrap) {
       line.isWrapped = false;
@@ -916,7 +916,7 @@ export class InputHandler extends Disposable implements IInputHandler {
     this._terminal.buffer.lines.get(this._terminal.buffer.y + this._terminal.buffer.ybase).replaceCells(
       this._terminal.buffer.x,
       this._terminal.buffer.x + (params[0] || 1),
-      [this._terminal.eraseAttr(), NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]
+      this._terminal.buffer.getNullCell(this._terminal.eraseAttr())
     );
   }
 
@@ -972,9 +972,10 @@ export class InputHandler extends Disposable implements IInputHandler {
     // make buffer local for faster access
     const buffer = this._terminal.buffer;
     const line = buffer.lines.get(buffer.ybase + buffer.y);
+    line.loadCell(buffer.x - 1, this._cell);
     line.replaceCells(buffer.x,
       buffer.x + (params[0] || 1),
-      line.get(buffer.x - 1) || [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE]
+      (this._cell.content !== undefined) ? this._cell : buffer.getNullCell(DEFAULT_ATTR)
     );
     // FIXME: no updateRange here?
   }

src/Types.ts

@@ -540,7 +540,7 @@ export interface IBufferLine {
   addCharToCell(index: number, codePoint: number): void;
   insertCells(pos: number, n: number, ch: ICellData): void;
   deleteCells(pos: number, n: number, fill: ICellData): void;
-  replaceCells(start: number, end: number, fill: CharData): void;
+  replaceCells(start: number, end: number, fill: ICellData): void;
   resize(cols: number, fill: CharData, shrink?: boolean): void;
   fill(fillCharData: CharData): void;
   copyFrom(line: IBufferLine): void;