X-Git-Url: https://git.josue.xyz/?p=VSoRC%2F.git;a=blobdiff_plain;f=node_modules%2Fxterm%2Fsrc%2Fcommon%2Fbuffer%2FCellData.ts;fp=node_modules%2Fxterm%2Fsrc%2Fcommon%2Fbuffer%2FCellData.ts;h=21ad2ee5ca9550ce0957ede4e5c449567a5b1e53;hp=0000000000000000000000000000000000000000;hb=4339da12467b75fb8b6ca831f4bf0081c485ed2c;hpb=af450fde25a9ccf4767b29254c463ffb8ef25237 diff --git a/node_modules/xterm/src/common/buffer/CellData.ts b/node_modules/xterm/src/common/buffer/CellData.ts new file mode 100644 index 0000000..21ad2ee --- /dev/null +++ b/node_modules/xterm/src/common/buffer/CellData.ts @@ -0,0 +1,93 @@ +/** + * Copyright (c) 2018 The xterm.js authors. All rights reserved. + * @license MIT + */ + +import { CharData, ICellData } from 'common/Types'; +import { stringFromCodePoint } from 'common/input/TextDecoder'; +import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_WIDTH_INDEX, CHAR_DATA_ATTR_INDEX, Content } from 'common/buffer/Constants'; +import { AttributeData } from 'common/buffer/AttributeData'; + +/** + * CellData - represents a single Cell in the terminal buffer. + */ +export class CellData extends AttributeData implements ICellData { + /** Helper to create CellData from CharData. */ + public static fromCharData(value: CharData): CellData { + const obj = new CellData(); + obj.setFromCharData(value); + return obj; + } + /** Primitives from terminal buffer. */ + public content: number = 0; + public fg: number = 0; + public bg: number = 0; + public combinedData: string = ''; + /** Whether cell contains a combined string. */ + public isCombined(): number { + return this.content & Content.IS_COMBINED_MASK; + } + /** Width of the cell. */ + public getWidth(): number { + return this.content >> Content.WIDTH_SHIFT; + } + /** JS string of the content. */ + public getChars(): string { + if (this.content & Content.IS_COMBINED_MASK) { + return this.combinedData; + } + if (this.content & Content.CODEPOINT_MASK) { + return stringFromCodePoint(this.content & Content.CODEPOINT_MASK); + } + return ''; + } + /** + * Codepoint of cell + * Note this returns the UTF32 codepoint of single chars, + * if content is a combined string it returns the codepoint + * of the last char in string to be in line with code in CharData. + * */ + public getCode(): number { + return (this.isCombined()) + ? this.combinedData.charCodeAt(this.combinedData.length - 1) + : this.content & Content.CODEPOINT_MASK; + } + /** Set data from CharData */ + public setFromCharData(value: CharData): void { + this.fg = value[CHAR_DATA_ATTR_INDEX]; + this.bg = 0; + let combined = false; + // surrogates and combined strings need special treatment + if (value[CHAR_DATA_CHAR_INDEX].length > 2) { + combined = true; + } + else if (value[CHAR_DATA_CHAR_INDEX].length === 2) { + const code = value[CHAR_DATA_CHAR_INDEX].charCodeAt(0); + // if the 2-char string is a surrogate create single codepoint + // everything else is combined + if (0xD800 <= code && code <= 0xDBFF) { + const second = value[CHAR_DATA_CHAR_INDEX].charCodeAt(1); + if (0xDC00 <= second && second <= 0xDFFF) { + this.content = ((code - 0xD800) * 0x400 + second - 0xDC00 + 0x10000) | (value[CHAR_DATA_WIDTH_INDEX] << Content.WIDTH_SHIFT); + } + else { + combined = true; + } + } + else { + combined = true; + } + } + else { + this.content = value[CHAR_DATA_CHAR_INDEX].charCodeAt(0) | (value[CHAR_DATA_WIDTH_INDEX] << Content.WIDTH_SHIFT); + } + if (combined) { + this.combinedData = value[CHAR_DATA_CHAR_INDEX]; + this.content = Content.IS_COMBINED_MASK | (value[CHAR_DATA_WIDTH_INDEX] << Content.WIDTH_SHIFT); + } + } + /** Get data as CharData. */ + public getAsCharData(): CharData { + return [this.fg, this.getChars(), this.getWidth(), this.getCode()]; + } +}