[Staking][Zerocoin][GUI] Show number of confirmations until staking becomes active

src/Makefile.qt.include

@@ -417,6 +417,9 @@ RES_ICONS = \
   qt/res/icons/[email protected] \
   qt/res/icons/[email protected] \
   qt/res/icons/ic-switch-on.png \
+  qt/res/icons/ic-switch-on-grey.png \
+  qt/res/icons/[email protected] \
+  qt/res/icons/[email protected] \
   qt/res/icons/[email protected] \
   qt/res/icons/ic-progress-10-10.png \
   qt/res/icons/[email protected] \
@@ -552,6 +555,9 @@ RES_ICONS = \
   qt/res/icons/ic-progress-6-6-complete-14x14.png \
   qt/res/icons/ic-switch-on.png \
   qt/res/icons/ic-switch-off.png \
+  qt/res/icons/ic-switch-off-blue.png \
+  qt/res/icons/[email protected] \
+  qt/res/icons/[email protected] \
   qt/res/icons/ic-addresses.png \
   qt/res/icons/ic-transactions.png \
   qt/res/icons/ic-send.png \

src/interfaces/wallet.cpp

@@ -307,6 +307,7 @@ class WalletImpl : public Wallet
     }
     void setStakingEnabled(bool fEnableStaking) override { m_wallet.SetStakingEnabled(fEnableStaking); }
     bool isStakingEnabled() override { return m_wallet.IsStakingEnabled(); }
+    bool isStakingActive() override { return m_wallet.IsStakingActive(); }
 
     void abortRescan() override { m_wallet.AbortRescan(); }
     bool backupWallet(const std::string& filename) override { return m_wallet.BackupWallet(filename); }

src/interfaces/wallet.h

@@ -302,6 +302,9 @@ class Wallet
     virtual void setStakingEnabled(bool fEnableStaking) = 0;
     virtual bool isStakingEnabled() = 0;
 
+    //! Return whether wallet is actively staking.
+    virtual bool isStakingActive() = 0;
+
     //! Register handler for unload message.
     using UnloadFn = std::function<void()>;
     virtual std::unique_ptr<Handler> handleUnload(UnloadFn fn) = 0;

src/miner.cpp

@@ -898,6 +898,7 @@ void BitcoinMiner(std::shared_ptr<CReserveScript> coinbaseScript, bool fProofOfS
             }
 
             if (!pwallet || !pwallet->IsStakingEnabled() || (pwallet->IsLocked() && !pwallet->IsUnlockedForStakingOnly())) {
+				mapHashedBlocks.clear();
                 MilliSleep(5000);
                 continue;
             }
@@ -1213,7 +1214,7 @@ void ThreadStakeMiner()
             LogPrintf("%s: interrupted\n", __func__);
         }
     }
-
+    mapHashedBlocks.clear();
     LogPrintf("%s: exiting\n", __func__);
 }
 

src/qt/res/css/main.css

@@ -698,19 +698,6 @@ QCheckBox#checkStaking::indicator {
     height:25px;
 }
 
-QCheckBox#checkStaking {
-    background-image: url(":/icons/ic-switch-off-png");
-    background-repeat:no-repeat;
-    background-position:left center;
-    color:#bababa;
-    margin-right:5px;
-}
-
-QCheckBox#checkStaking:checked {
-    background-image: url(":/icons/ic-switch-on-png");
-    color:#105aef;
-}
-
 QPushButton#btnSync{
     color:#707070;
     border:none;