[Qt] Raise debug window when requested

* Raise the debug window when hidden behind other windows
* Switch to the debug window when on another virtual desktop
* Show the debug window when minimized

This change is a conceptual copy of 5ffaaba and 382e9e2

src/qt/bitcoingui.cpp

@@ -215,11 +215,6 @@ BitcoinGUI::BitcoinGUI(const PlatformStyle *platformStyle, const NetworkStyle *n
     statusBar()->addWidget(progressBar);
     statusBar()->addPermanentWidget(frameBlocks);
 
-    connect(openRPCConsoleAction, SIGNAL(triggered()), rpcConsole, SLOT(show()));
-
-    // prevents an open debug window from becoming stuck/unusable on client shutdown
-    connect(quitAction, SIGNAL(triggered()), rpcConsole, SLOT(hide()));
-
     // Install event filter to be able to catch status tip events (QEvent::StatusTip)
     this->installEventFilter(this);
 
@@ -352,6 +347,10 @@ void BitcoinGUI::createActions()
     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
     connect(showHelpMessageAction, SIGNAL(triggered()), this, SLOT(showHelpMessageClicked()));
+    connect(openRPCConsoleAction, SIGNAL(triggered()), this, SLOT(showDebugWindow()));
+    // prevents an open debug window from becoming stuck/unusable on client shutdown
+    connect(quitAction, SIGNAL(triggered()), rpcConsole, SLOT(hide()));
+
 #ifdef ENABLE_WALLET
     if(walletFrame)
     {
@@ -590,6 +589,14 @@ void BitcoinGUI::aboutClicked()
     dlg.exec();
 }
 
+void BitcoinGUI::showDebugWindow()
+{
+    rpcConsole->showNormal();
+    rpcConsole->show();
+    rpcConsole->raise();
+    rpcConsole->activateWindow();
+}
+
 void BitcoinGUI::showHelpMessageClicked()
 {
     helpMessageDialog->show();

src/qt/bitcoingui.h

@@ -196,6 +196,8 @@ private Q_SLOTS:
     void optionsClicked();
     /** Show about dialog */
     void aboutClicked();
+    /** Show debug window */
+    void showDebugWindow();
     /** Show help message dialog */
     void showHelpMessageClicked();
 #ifndef Q_OS_MAC