pezkuwichain/pezkuwi-ui
1
0
Fork 0
mirror of https://github.com/pezkuwichain/pezkuwi-ui.git synced 2026-06-12 02:41:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

Export calcSi & findSi from ui-util (#78)

Browse Source
This commit is contained in:
Jaco Greeff
2019-02-18 12:54:07 +01:00
committed by GitHub
parent d3677335af
commit eeabfda52b
3 changed files with 46 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
packages/ui-util/src/formatBalance.ts
+5 -36
View File
@@ -5,14 +5,9 @@
import BN from 'bn.js';
import { isUndefined } from '@polkadot/util';
import { SI, SI_MID, SiDef, calcSi, findSi } from './si';
import formatDecimal from './formatDecimal';
type SiDef = {
power: number,
text: string,
value: string
};
type Defaults = {
decimals?: number,
unit?: string
@@ -20,43 +15,19 @@ type Defaults = {
interface BalanceFormatter {
(input?: number | string | BN, withSi?: boolean, decimals?: number): string;
calcSi (text: string, decimals: number): SiDef;
findSi (type: string): SiDef;
getDefaults (): Defaults;
getOptions (decimals?: number): Array<SiDef>;
setDefaults (defaults: Defaults): void;
}
const SI_MID = 8;
const DEFAULT_DECIMALS = 0;
const DEFAULT_UNIT = 'Unit';
const DEFAULT_UNIT = SI[SI_MID].text;
let defaultDecimals = DEFAULT_DECIMALS;
let defaultUnit = DEFAULT_UNIT;
const SI: Array<SiDef> = [
{ power: -24, value: 'y', text: 'yocto' },
{ power: -21, value: 'z', text: 'zepto' },
{ power: -18, value: 'a', text: 'atto' },
{ power: -15, value: 'f', text: 'femto' },
{ power: -12, value: 'p', text: 'pico' },
{ power: -9, value: 'n', text: 'nano' },
{ power: -6, value: 'µ', text: 'micro' },
{ power: -3, value: 'm', text: 'milli' },
{ power: 0, value: '-', text: defaultUnit }, // position 8
{ power: 3, value: 'k', text: 'Kilo' },
{ power: 6, value: 'M', text: 'Mega' },
{ power: 9, value: 'G', text: 'Giga' },
{ power: 12, value: 'T', text: 'Tera' },
{ power: 15, value: 'P', text: 'Peta' },
{ power: 18, value: 'E', text: 'Exa' },
{ power: 21, value: 'Z', text: 'Zeta' },
{ power: 24, value: 'Y', text: 'Yotta' }
];
export function calcSi (text: string, decimals: number = defaultDecimals): SiDef {
return SI[(SI_MID - 1) + Math.ceil((text.length - decimals) / 3)] || SI[SI.length - 1];
}
// Formats a string/number with <prefix>.<postfix><type> notation
function _formatBalance (input?: number | string | BN, withSi: boolean = true, decimals: number = defaultDecimals): string {
const text = (input || '').toString();
@@ -85,10 +56,8 @@ function _formatBalance (input?: number | string | BN, withSi: boolean = true, d
const formatBalance = _formatBalance as BalanceFormatter;
// Given a SI type (e.g. k, m, Y) find the SI definition
formatBalance.findSi = (type: string): SiDef => {
return SI.find(({ value }) => value === type) || SI[SI_MID];
};
formatBalance.calcSi = calcSi;
formatBalance.findSi = findSi;
formatBalance.getDefaults = (): Defaults => {
return {
packages/ui-util/src/index.ts
+1
View File
@@ -7,3 +7,4 @@ export { default as formatDecimal } from './formatDecimal';
export { default as formatElapsed } from './formatElapsed';
export { default as formatNumber } from './formatNumber';
export { default as isTestChain } from './isTestChain';
export { calcSi, findSi } from './si';
packages/ui-util/src/si.ts
+40
View File
@@ -0,0 +1,40 @@
// Copyright 2017-2019 @polkadot/ui-util authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
export type SiDef = {
power: number,
text: string,
value: string
};
export const SI_MID = 8;
export const SI: Array<SiDef> = [
{ power: -24, value: 'y', text: 'yocto' },
{ power: -21, value: 'z', text: 'zepto' },
{ power: -18, value: 'a', text: 'atto' },
{ power: -15, value: 'f', text: 'femto' },
{ power: -12, value: 'p', text: 'pico' },
{ power: -9, value: 'n', text: 'nano' },
{ power: -6, value: 'µ', text: 'micro' },
{ power: -3, value: 'm', text: 'milli' },
{ power: 0, value: '-', text: 'Unit' }, // position 8
{ power: 3, value: 'k', text: 'Kilo' },
{ power: 6, value: 'M', text: 'Mega' },
{ power: 9, value: 'G', text: 'Giga' },
{ power: 12, value: 'T', text: 'Tera' },
{ power: 15, value: 'P', text: 'Peta' },
{ power: 18, value: 'E', text: 'Exa' },
{ power: 21, value: 'Z', text: 'Zeta' },
{ power: 24, value: 'Y', text: 'Yotta' }
];
export function calcSi (text: string, decimals: number): SiDef {
return SI[(SI_MID - 1) + Math.ceil((text.length - decimals) / 3)] || SI[SI.length - 1];
}
// Given a SI type (e.g. k, m, Y) find the SI definition
export function findSi (type: string): SiDef {
return SI.find(({ value }) => value === type) || SI[SI_MID];
}