resedit-cli/dist/emit/icons.js

Command-line tool for editing Windows Resource data in executable binaries

import * as ResEdit from 'resedit';
import { readFile } from '../fs.js';
import * as log from '../log.js';
function getNextPreferIconId(start, usedIds) {
    const s = start;
    while (true) {
        ++start;
        if (!usedIds.includes(start)) {
            return start;
        }
        if (start === 65535) {
            start = 0;
        }
        if (start === s) {
            throw new Error('No more icons can be added.');
        }
    }
}
export default async function emitIcons(res, lang, icons) {
    if (!icons || icons.length === 0) {
        return false;
    }
    log.info(`[icon] Emit icons. (count = ${icons.length})`);
    const baseIcons = ResEdit.Resource.IconGroupEntry.fromEntries(res.entries);
    const prevIconIdMap = {};
    for (let i = 0, len = icons.length; i < len; ++i) {
        const item = icons[i];
        const iconLang = typeof item.lang === 'number' ? item.lang : lang;
        const prevIconId = prevIconIdMap[iconLang] || 0;
        const usedIds = baseIcons
            .filter((entry) => entry.lang === iconLang)
            .map((entry) => entry.id);
        let iconId;
        if (typeof item.id !== 'undefined') {
            iconId = item.id;
            log.debug(`[icon] Use specified ID '${iconId}' for icon file '${item.sourceFile}'. (lang = ${iconLang})`);
        }
        else {
            iconId = getNextPreferIconId(prevIconId, usedIds);
            log.debug(`[icon] Use calculated ID '${iconId}' for icon file '${item.sourceFile}'. (lang = ${iconLang})`);
            prevIconIdMap[iconLang] = iconId;
        }
        const icon = ResEdit.Data.IconFile.from(await readFile(item.sourceFile));
        ResEdit.Resource.IconGroupEntry.replaceIconsForResource(res.entries, iconId, iconLang, icon.icons.map((item) => item.data));
    }
    log.info(`[icon] Done.`);
    return true;
}