Files
smart-city-digital-twin-mar…/smart-app-city/frontend/node_modules/pngjs/lib/packer-sync.js
Eric FELIXINE e30ae8ed09 feat(smart-app): implement complete mobile app MVP
- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image
2026-06-01 18:00:35 -04:00

49 lines
1.1 KiB
JavaScript

'use strict';
var hasSyncZlib = true;
var zlib = require('zlib');
if (!zlib.deflateSync) {
hasSyncZlib = false;
}
var constants = require('./constants');
var Packer = require('./packer');
module.exports = function(metaData, opt) {
if (!hasSyncZlib) {
throw new Error('To use the sync capability of this library in old node versions, please pin pngjs to v2.3.0');
}
var options = opt || {};
var packer = new Packer(options);
var chunks = [];
// Signature
chunks.push(new Buffer(constants.PNG_SIGNATURE));
// Header
chunks.push(packer.packIHDR(metaData.width, metaData.height));
if (metaData.gamma) {
chunks.push(packer.packGAMA(metaData.gamma));
}
var filteredData = packer.filterData(metaData.data, metaData.width, metaData.height);
// compress it
var compressedData = zlib.deflateSync(filteredData, packer.getDeflateOptions());
filteredData = null;
if (!compressedData || !compressedData.length) {
throw new Error('bad png - invalid compressed data response');
}
chunks.push(packer.packIDAT(compressedData));
// End
chunks.push(packer.packIEND());
return Buffer.concat(chunks);
};