flutter_esc_pos_network_universal 1.0.2

The library allows printing receipts using ESC/POS commands using thermal Wi-Fi/Ethernet printer.

1.0.2

• Fix: Seamless Long Receipts (Universal) — Resolved the "white gap" issue on both Web and IO (macOS/Mobile) by generating the entire receipt as a single continuous ESC/POS command instead of slicing it into chunks.
• Improvement: Transmission Flow Control — Added transmission-level chunking (5KB chunks with a 20ms delay) across all platforms. This prevents data loss and printer buffer overflows that previously caused middle sections of long receipts to be blank.
• Stability: Added flush() calls and small delays between data chunks to give printer hardware time to process high-resolution bitmaps reliably.

1.0.1

• Fix: Chunk-seam artifact on Web — The previous chunked image approach sent each slice as a separate ESC/POS GS v 0 command, causing the printer to advance one dot-line between chunks. This produced white horizontal gaps and doubled/ghosted text lines at chunk boundaries. The web implementation now sends the full receipt bitmap as a single GS v 0 command, eliminating all seams.
• Removed chunkHeight from public API — The chunkHeight parameter and BasePrinterNetworkManager.chunkHeight getter have been removed. Chunking is now a private implementation detail of the IO (mobile/desktop) path only. The web path does not chunk. This is a minor breaking change for anyone passing chunkHeight to PrinterNetworkManager — simply remove the argument.
• Screenshot delay increased on Web — captureFromLongWidget delay raised from 200 ms to 500 ms to give fonts additional time to render into the browser canvas before the bitmap is captured.

1.0.0

• Universal Support: Standardized API for both IO (Mobile/Desktop) and Web platforms.
• Widget Printing: Added printWidget method to capture and print any Flutter widget as a thermal receipt.
• High-Performance Isolates: Utilizes compute for image processing to maintain UI thread responsiveness.
• Chunked Data Support: Automatic chunking of large images for IO platforms.
• Extension Status Stream: Real-time monitoring of the Local TCP Extension availability on Web.
• Paper Size Support: Support for 58mm, 72mm, and 80mm paper widths.
• Improved Networking: Unified connection handling, timeouts, and error reporting.