Demonstrates a simple menu bar

Author: mttwc

HelloQt.pro

@@ -6,9 +6,9 @@
 QT += widgets
 
 SOURCES = src/main.cpp \
-          src/plus_minus_demonstration.cpp \
+          src/simple_menu_demonstration.cpp \
 
-HEADERS = src/plus_minus_demonstration.h
+HEADERS = src/simple_menu_demonstration.h
 
 CONFIG -= app_bundle
 

src/main.cpp

@@ -1,15 +1,15 @@
 #include <QApplication>
 #include <QWidget>
-#include "plus_minus_demonstration.h"
+#include "simple_menu_demonstration.h"
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
 
-    PlusMinusDemonstration window;
+    SimpleMenuDemonstration window;
 
     window.resize(250, 150);
-    window.setWindowTitle("PlusMinus Demonstration");
+    window.setWindowTitle("SimpleMenu Demonstration");
     window.show();
 
     return app.exec();

src/plus_minus_demonstration.cpp

@@ -0,0 +1,21 @@
+#include "simple_menu_demonstration.h"
+#include <QAction>
+#include <QMenu>
+#include <QMenuBar>
+
+SimpleMenuDemonstration::SimpleMenuDemonstration(QWidget *parent)
+    : QMainWindow(parent)
+{
+    // The ampersand denotes the shortcut
+    QAction *quit = new QAction("&Quit", this);
+    
+    // Necessary for OSX because I can't get the menu bar to appear (seems like an old qt bug)
+    menuBar()->setNativeMenuBar(false);
+    
+    QMenu *file;
+    file = menuBar()->addMenu("&File");
+    file->addAction(quit);
+    
+    // Note the signal is from the QAction class and the slot is from the QApplication class, which matches the widgets (1st and 3rd params)
+    connect(quit, &QAction::triggered, qApp, QApplication::quit);
+}

src/plus_minus_demonstration.h

@@ -0,0 +1,14 @@
+#ifndef SIMPLE_MENU_DEMONSTRATION_H
+#define SIMPLE_MENU_DEMONSTRATION_H
+
+#include <QApplication>
+#include <QMainWindow>
+#include <QWidget>
+
+class SimpleMenuDemonstration : public QMainWindow
+{
+    public:
+        SimpleMenuDemonstration(QWidget *parent = 0);
+};
+
+#endif