[Qt] importwallet progress

Author: cozz

src/rpcdump.cpp

@@ -153,15 +153,20 @@ Value importwallet(const Array& params, bool fHelp)
     EnsureWalletIsUnlocked();
 
     ifstream file;
-    file.open(params[0].get_str().c_str());
+    file.open(params[0].get_str().c_str(), std::ios::in | std::ios::ate);
     if (!file.is_open())
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
 
     int64_t nTimeBegin = chainActive.Tip()->nTime;
 
     bool fGood = true;
 
+    int64_t nFilesize = std::max((int64_t)1, (int64_t)file.tellg());
+    file.seekg(0, file.beg);
+
+    pwalletMain->ShowProgress(_("Importing..."), 0); // show progress dialog in GUI
     while (file.good()) {
+        pwalletMain->ShowProgress("", std::max(1, std::min(99, (int)(((double)file.tellg() / (double)nFilesize) * 100))));
         std::string line;
         std::getline(file, line);
         if (line.empty() || line[0] == '#')
@@ -207,6 +212,7 @@ Value importwallet(const Array& params, bool fHelp)
         nTimeBegin = std::min(nTimeBegin, nTime);
     }
     file.close();
+    pwalletMain->ShowProgress("", 100); // hide progress dialog in GUI
 
     CBlockIndex *pindex = chainActive.Tip();
     while (pindex && pindex->pprev && pindex->nTime > nTimeBegin - 7200)