Added splash screen to the app

MainWindow.h

@@ -170,6 +170,8 @@ private:
 
   // Actions-related.
   bool okToContinue();
+
+public:
   bool loadFile(const QString &fileName);
   bool saveFile(const QString &fileName);
   void setCurrentFile(const QString &fileName);
@@ -184,6 +186,7 @@ private:
   // Returns a short version of filename.
   static QString strippedName(const QString &fullFileName);
 
+private:
   // Connects/disconnects project-specific widgets (paints and mappings).
   void connectProjectWidgets();
   void disconnectProjectWidgets();

main.cpp

@@ -7,27 +7,63 @@
 #include "MainWindow.h"
 #include "MainApplication.h"
 
+// This class is just used to provide sleep functionalities in the main() method.
+class I : public QThread
+{
+public:
+  static void sleep(unsigned long secs) {
+    QThread::sleep(secs);
+  }
+  static void msleep(unsigned long msecs) {
+    QThread::msleep(msecs);
+  }
+  static void usleep(unsigned long usecs) {
+    QThread::usleep(usecs);
+  }
+};
+
 int main(int argc, char *argv[])
 {
   // TODO: avoid segfaults when OSC port is busy
   MainApplication app(argc, argv);
 
-  if (! QGLFormat::hasOpenGL())
-  {
-    std::cerr << "This system has no OpenGL support" << std::endl;
-    return 1;
-  }
+  if (!QGLFormat::hasOpenGL())
+    qFatal(QObject::tr("This system has no OpenGL support.").toUtf8().constData());
 
+  // Create splash screen.
+  QPixmap pixmap("splash.png");
+  QSplashScreen splash(pixmap);
+
+  // Show splash.
+  splash.show();
+
+  splash.showMessage("  " + QObject::tr("Initiating your program now..."),
+                     Qt::AlignLeft | Qt::AlignTop, QColor("#f6f5f5"));
+
+  // Set translator.
   QTranslator translator;
   translator.load("mapmap_fr");
   app.installTranslator(&translator);
 
-  MainWindow win;
+  // Let splash for at least one second.
+  I::sleep(1);
 
+  // Create window.
+  MainWindow win;
   //win.setLocale(QLocale("fr"));
 
+  // Load file from commandline (optional).
+  if (QCoreApplication::arguments().size() > 1)
+    win.loadFile(QCoreApplication::arguments().at(1));
+
+  // Show window.
   win.show();
 
+  // Terminate splash.
+  splash.finish(&win);
+  splash.raise();
+
+  // Start app.
   return app.exec();
 }