Files
xterm.js/src/renderer/atlas/CharAtlasUtils.ts
T
Daniel Imms 53c71b3579 Remove experimentalCharAtlas, make dynamic default
The NoneCharAtlas is still available to swap in if we need it.

Fixes #1576
2019-05-31 10:54:23 -07:00

57 lines
1.9 KiB
TypeScript

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