ObsidianDragon - DragonX ImGui Wallet

Full-node GUI wallet for DragonX cryptocurrency.
Built with Dear ImGui, SDL3, and OpenGL3/DX11.

Features:
- Send/receive shielded and transparent transactions
- Autoshield with merged transaction display
- Built-in CPU mining (xmrig)
- Peer management and network monitoring
- Wallet encryption with PIN lock
- QR code generation for receive addresses
- Transaction history with pagination
- Console for direct RPC commands
- Cross-platform (Linux, Windows)

src/util/payment_uri.h

@@ -0,0 +1,51 @@
+// DragonX Wallet - ImGui Edition
+// Copyright 2024-2026 The Hush Developers
+// Released under the GPLv3
+
+#pragma once
+
+#include <string>
+
+namespace dragonx {
+namespace util {
+
+/**
+ * @brief Parsed payment URI data
+ */
+struct PaymentURI {
+    std::string address;
+    double amount = 0.0;
+    std::string label;
+    std::string memo;
+    std::string message;
+    bool valid = false;
+    std::string error;
+};
+
+/**
+ * @brief Parse a DragonX/HUSH payment URI
+ * 
+ * Supports format: drgx:<address>?amount=<amount>&label=<label>&memo=<memo>&message=<message>
+ * Also supports hush: prefix for backwards compatibility
+ * 
+ * @param uri The payment URI to parse
+ * @return PaymentURI struct with parsed data
+ */
+PaymentURI parsePaymentURI(const std::string& uri);
+
+/**
+ * @brief URL decode a string
+ * @param encoded URL-encoded string
+ * @return Decoded string
+ */
+std::string urlDecode(const std::string& encoded);
+
+/**
+ * @brief Check if a string is a valid payment URI
+ * @param str String to check
+ * @return true if it starts with drgx: or hush:
+ */
+bool isPaymentURI(const std::string& str);
+
+} // namespace util
+} // namespace dragonx