diff options
Diffstat (limited to 'node_modules/xterm/src/browser/renderer/GridCache.ts')
-rw-r--r-- | node_modules/xterm/src/browser/renderer/GridCache.ts | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/node_modules/xterm/src/browser/renderer/GridCache.ts b/node_modules/xterm/src/browser/renderer/GridCache.ts new file mode 100644 index 0000000..b48798d --- /dev/null +++ b/node_modules/xterm/src/browser/renderer/GridCache.ts @@ -0,0 +1,33 @@ +/** + * Copyright (c) 2017 The xterm.js authors. All rights reserved. + * @license MIT + */ + +export class GridCache<T> { + public cache: (T | undefined)[][]; + + public constructor() { + this.cache = []; + } + + public resize(width: number, height: number): void { + for (let x = 0; x < width; x++) { + if (this.cache.length <= x) { + this.cache.push([]); + } + for (let y = this.cache[x].length; y < height; y++) { + this.cache[x].push(undefined); + } + this.cache[x].length = height; + } + this.cache.length = width; + } + + public clear(): void { + for (let x = 0; x < this.cache.length; x++) { + for (let y = 0; y < this.cache[x].length; y++) { + this.cache[x][y] = undefined; + } + } + } +} |