Add about dialogs.

Signed-off-by: Andrea Odetti <mariofutire@gmail.com>

source/frontends/qapple/qapple.cpp

@@ -454,3 +454,13 @@ void QApple::on_actionLoad_state_triggered()
     myEmulatorWindow->setWindowTitle(g_pAppTitle);
     myEmulator->redrawScreen();
 }
+
+void QApple::on_actionAbout_Qt_triggered()
+{
+    QMessageBox::aboutQt(this);
+}
+
+void QApple::on_actionAbout_triggered()
+{
+    QMessageBox::about(this, QApplication::applicationName(), "Apple ][ emulator\n\nBased on AppleWin\n");
+}

source/frontends/qapple/qapple.h

@@ -49,6 +49,10 @@ private slots:
 
     void on_actionLoad_state_triggered();
 
+    void on_actionAbout_Qt_triggered();
+
+    void on_actionAbout_triggered();
+
 private:
 
     void stopTimer();

source/frontends/qapple/qapple.ui

@@ -55,6 +55,8 @@
      <string>Wi&amp;ndow</string>
     </property>
     <addaction name="actionMemory"/>
+    <addaction name="actionAbout_Qt"/>
+    <addaction name="actionAbout"/>
    </widget>
    <widget class="QMenu" name="menuTools">
     <property name="title">
@@ -159,6 +161,16 @@
     <string>&amp;Save state</string>
    </property>
   </action>
+  <action name="actionAbout_Qt">
+   <property name="text">
+    <string>About Qt...</string>
+   </property>
+  </action>
+  <action name="actionAbout">
+   <property name="text">
+    <string>About...</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources/>