Convert UI interface to boost::signals2.

- Signals now go directly from the core to WalletModel/ClientModel.
  - WalletModel subscribes to signals on CWallet: Prepares for multi-wallet support, by no longer assuming an implicit global wallet.
- Gets rid of noui.cpp, the few lines that were left are merged into init.cpp
- Rename wxXXX message flags to MF_XXX, to make them UI indifferent.
- ThreadSafeMessageBox no longer returns the value `4` which was never used, converted to void.

1 files changed, 32 insertions, 7 deletions

diff --git a/src/init.cpp b/src/init.cpp
index 47b6f92324..096f289640 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -22,6 +22,7 @@ using namespace std;
 using namespace boost;
 
 CWallet* pwalletMain;
+CClientUIInterface uiInterface;
 
 //////////////////////////////////////////////////////////////////////////////
 //
@@ -90,9 +91,33 @@ void HandleSIGTERM(int)
 // Start
 //
 #if !defined(QT_GUI)
+static int noui_ThreadSafeMessageBox(const std::string& message, const std::string& caption, int style)
+{
+    printf("%s: %s\n", caption.c_str(), message.c_str());
+    fprintf(stderr, "%s: %s\n", caption.c_str(), message.c_str());
+    return 4;
+}
+
+static bool noui_ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption)
+{
+    return true;
+}
+
+static void noui_QueueShutdown()
+{
+    // Without UI, Shutdown can simply be started in a new thread
+    CreateThread(Shutdown, NULL);
+}
+
 int main(int argc, char* argv[])
 {
     bool fRet = false;
+
+    // Connect bitcoind signal handlers
+    uiInterface.ThreadSafeMessageBox.connect(noui_ThreadSafeMessageBox);
+    uiInterface.ThreadSafeAskFee.connect(noui_ThreadSafeAskFee);
+    uiInterface.QueueShutdown.connect(noui_QueueShutdown);
+
     fRet = AppInit(argc, argv);
 
     if (fRet && fDaemon)
@@ -160,13 +185,13 @@ bool AppInit(int argc, char* argv[])
 
 bool static InitError(const std::string &str)
 {
-    ThreadSafeMessageBox(str, _("Bitcoin"), wxOK | wxMODAL);
+    uiInterface.ThreadSafeMessageBox(str, _("Bitcoin"), MF_OK|MF_MODAL);
     return false;
 }
 
 bool static InitWarning(const std::string &str)
 {
-    ThreadSafeMessageBox(str, _("Bitcoin"), wxOK | wxICON_EXCLAMATION | wxMODAL);
+    uiInterface.ThreadSafeMessageBox(str, _("Bitcoin"), MF_OK | MF_ICON_EXCLAMATION | MF_MODAL);
     return true;
 }
 
@@ -367,7 +392,7 @@ bool AppInit2()
         fprintf(stdout, "Bitcoin server starting\n");
     int64 nStart;
 
-    InitMessage(_("Loading addresses..."));
+    uiInterface.InitMessage(_("Loading addresses..."));
     printf("Loading addresses...\n");
     nStart = GetTimeMillis();
 
@@ -380,7 +405,7 @@ bool AppInit2()
     printf("Loaded %i addresses from peers.dat  %"PRI64d"ms\n",
            addrman.size(), GetTimeMillis() - nStart);
 
-    InitMessage(_("Loading block index..."));
+    uiInterface.InitMessage(_("Loading block index..."));
     printf("Loading block index...\n");
     nStart = GetTimeMillis();
     if (!LoadBlockIndex())
@@ -406,7 +431,7 @@ bool AppInit2()
         }
     }
 
-    InitMessage(_("Loading wallet..."));
+    uiInterface.InitMessage(_("Loading wallet..."));
     printf("Loading wallet...\n");
     nStart = GetTimeMillis();
     bool fFirstRun;
@@ -474,14 +499,14 @@ bool AppInit2()
     }
     if (pindexBest != pindexRescan)
     {
-        InitMessage(_("Rescanning..."));
+        uiInterface.InitMessage(_("Rescanning..."));
         printf("Rescanning last %i blocks (from block %i)...\n", pindexBest->nHeight - pindexRescan->nHeight, pindexRescan->nHeight);
         nStart = GetTimeMillis();
         pwalletMain->ScanForWalletTransactions(pindexRescan, true);
         printf(" rescan      %15"PRI64d"ms\n", GetTimeMillis() - nStart);
     }
 
-    InitMessage(_("Done loading"));
+    uiInterface.InitMessage(_("Done loading"));
     printf("Done loading\n");
 
     //// debug print