62 lines
2.1 KiB
TypeScript
62 lines
2.1 KiB
TypeScript
/**
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* Copyright (c) 2017 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { ICharAtlasConfig } from './Types';
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import { Attributes } from 'common/buffer/Constants';
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import { Terminal, FontWeight } from 'xterm';
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import { IColorSet, IColor } from 'browser/Types';
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const NULL_COLOR: IColor = {
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css: '',
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rgba: 0
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};
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export function generateConfig(scaledCharWidth: number, scaledCharHeight: number, terminal: Terminal, colors: IColorSet): ICharAtlasConfig {
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// null out some fields that don't matter
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const clonedColors: IColorSet = {
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foreground: colors.foreground,
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background: colors.background,
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cursor: NULL_COLOR,
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cursorAccent: NULL_COLOR,
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selection: NULL_COLOR,
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// For the static char atlas, we only use the first 16 colors, but we need all 256 for the
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// dynamic character atlas.
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ansi: colors.ansi.slice()
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};
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return {
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devicePixelRatio: window.devicePixelRatio,
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scaledCharWidth,
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scaledCharHeight,
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fontFamily: terminal.getOption('fontFamily'),
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fontSize: terminal.getOption('fontSize'),
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fontWeight: terminal.getOption('fontWeight') as FontWeight,
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fontWeightBold: terminal.getOption('fontWeightBold') as FontWeight,
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allowTransparency: terminal.getOption('allowTransparency'),
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colors: clonedColors
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};
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}
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export function configEquals(a: ICharAtlasConfig, b: ICharAtlasConfig): boolean {
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for (let i = 0; i < a.colors.ansi.length; i++) {
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if (a.colors.ansi[i].rgba !== b.colors.ansi[i].rgba) {
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return false;
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}
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}
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return a.devicePixelRatio === b.devicePixelRatio &&
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a.fontFamily === b.fontFamily &&
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a.fontSize === b.fontSize &&
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a.fontWeight === b.fontWeight &&
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a.fontWeightBold === b.fontWeightBold &&
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a.allowTransparency === b.allowTransparency &&
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a.scaledCharWidth === b.scaledCharWidth &&
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a.scaledCharHeight === b.scaledCharHeight &&
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a.colors.foreground === b.colors.foreground &&
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a.colors.background === b.colors.background;
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}
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export function is256Color(colorCode: number): boolean {
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return (colorCode & Attributes.CM_MASK) === Attributes.CM_P16 || (colorCode & Attributes.CM_MASK) === Attributes.CM_P256;
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}
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