POS: need a client based/offline pos with full source code - ready to use

We are searching a pos software which is ready made with full source code. Offline/client based POS software for: Selling food store by pieces. Selling food store by weight. Restaurants and electronic store selling by pieces. - POS must be suitable for real pos handhelds. - Base/stationary : the pos software have to run on the base station hardware with Windows POS. The base and handheld communicate and synchronized together. We need all this functions:. + "Total Value" need to show in a extra display/screen for customer. + We need a function to print all customer bills again (by select day/timerange) + We need a software that can take/receive orders from mobile devices like orderman [login to view URL] (Android OS) + Software Design suitable for POS Hardware: Mobile Handheld is android OS + We need a option in the admin settings to show or hide the Buttons "Dine in", "Carry out", "Phone order", "Delivery order". + Product Barcode Scanner to detect which product you sell + If seller create a product, he can select: price is by pieces or by weight. + Sell products by weight (unit) function. + Sell products by pieces (unit) function. To weight a product, we need a connection to a scale to weight a product and sell it by weight unit. * We need a Serialnumber creator and Manager. The serial number allow the customer to use our pos software a limited time. Example: user install the pos software and start it. Now he must enter a received serial number. This serial number gives him a time, 1 or 2 year to use our software. after this time limit he have to buy a new serial number. * Each product can have a other tax. * We need to extend the daily sales report a little bit. * We need to drag and drop the table buttons to visualize the table placement in the restaurant room. * Automatic phone caller id detection for "home delivery service" and "phone order" mask Other functions: No internet / browser based software. Serialnumber authentication by running setup install after x min not using software show lock screen Wireless & Mobile device compatible Touch Screen ready Barcode Scanning credit card scanning/payment Commission Management Customer Account Profiles Discount Management eCommerce Extension für WooCommerce and Magento Gift Card Management Inventory Management Layaway Management Loyalty Program Support Ordering Automation Pricing Management Restaurant-Table POS Delivery and Take away Order possible Delivery Driver Selection possible Retail Management Returns Tracking Sales Tracking Different Report Views We need a POS to run it on real POS hardware