From ab9478c4c212b2e99814d7a2ad989695108e3db3 Mon Sep 17 00:00:00 2001
From: baydam <baydamd@gmail.com>
Date: Sun, 6 Mar 2016 03:04:11 +0000
Subject: [PATCH] The fullscreen button is activated only in dual screen mode

---
 MainWindow.cpp | 10 ++++++++++
 MainWindow.h   |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/MainWindow.cpp b/MainWindow.cpp
index 7c0b565..202d19c 100644
--- a/MainWindow.cpp
+++ b/MainWindow.cpp
@@ -1660,12 +1660,14 @@ void MainWindow::createActions()
   outputFullScreenAction->setCheckable(true);
   // Don't be displayed by default
   outputFullScreenAction->setChecked(false);
+  outputFullScreenAction->setEnabled(QApplication::desktop()->screenCount() > 1);
   outputFullScreenAction->setShortcutContext(Qt::ApplicationShortcut);
   addAction(outputFullScreenAction);
   // Manage fullscreen/modal show of GL output window.
   connect(outputFullScreenAction, SIGNAL(toggled(bool)), outputWindow, SLOT(setFullScreen(bool)));
   // When closing the GL output window or hit ESC key, uncheck the action in menu.
   connect(outputWindow, SIGNAL(closed()), outputFullScreenAction, SLOT(toggle()));
+  connect(QApplication::desktop(), SIGNAL(screenCountChanged(int)), this, SLOT(updateOutputAction(int)));
   // Create hiden action for closing output window
   QAction *closeOutput = new QAction(tr("Close output"), this);
   closeOutput->setShortcut(Qt::Key_Escape);
@@ -2906,6 +2908,14 @@ void MainWindow::pollOscInterface()
 #endif
 }
 
+void MainWindow::updateOutputAction(int screen)
+{
+  if (screen > 1)
+    outputFullScreenAction->setEnabled(true);
+  else
+    outputFullScreenAction->setEnabled(false);
+}
+
 // void MainWindow::applyOscCommand(const QVariantList& command)
 // {
 //   bool VERBOSE = true;
diff --git a/MainWindow.h b/MainWindow.h
index b7b9511..a88494d 100644
--- a/MainWindow.h
+++ b/MainWindow.h
@@ -109,7 +109,6 @@ private slots:
 
   // Widget callbacks.
   void handlePaintItemSelectionChanged();
-//  void handleItemDoubleClicked(QListWidgetItem* item);
   void handleMappingItemSelectionChanged();
   void handleMappingItemChanged(QListWidgetItem* item);
   void handleMappingIndexesMoved();
@@ -130,6 +129,7 @@ private slots:
   // Other.
   void windowModified();
   void pollOscInterface();
+  void updateOutputAction(int screen);
 
 public slots: