#ifndef _APPLICATION_H_
#define _APPLICATION_H_

// Qt4 Headers
include <QApplication>
include <QWidget>

// Carbon Headers
#ifdef Q_WS_MAC
    #include <Carbon/Carbon.h>
#endif

class Application : public QApplication {
    Q_OBJECT

    public:
        Application (int& argc, char **argv);

         QWidget *mainWindow (void) const;

    private:
         QWidget *m_mainWindow;

#ifdef Q_WS_MAC
    AEEventHandlerUPP m_appleEventProcessorUPP;
#endif
};

#endif // !_APPLICATION_H_

#ifdef Q_WS_MAC
static OSStatus appleEventProcessor(const AppleEvent *ae,
                                    AppleEvent *event,
                                    long handlerRefCon)
{
    Application *app = (Application *) handlerRefCon;

     OSType aeID = typeWildCard;
     OSType aeClass = typeWildCard;

     AEGetAttributePtr(ae, keyEventClassAttr, typeType, 0,
                       &aeClass, sizeof(aeClass), 0);
     AEGetAttributePtr(ae, keyEventIDAttr, typeType, 0,
                       &aeID, sizeof(aeID), 0);

     if (aeClass == kCoreEventClass) {
          if (aeID == kAEReopenApplication) {
               app->mainWindow()->show();
          }
          return noErr;
    }

    return eventNotHandledErr;
}
#endif

Application::Application (int& argc, char **argv)
    : QApplication(argc, argv)
{
    // Don't Quit the App on Window Close
    setQuitOnLastWindowClosed(false);

    // Initialize Main Window
    m_mainWindow = new QLabel("Test Main Window");

#ifdef Q_WS_MAC
    // Install Reopen Application Event (Dock Clicked)
    m_appleEventProcessorUPP = AEEventHandlerUPP(appleEventProcessor);
    AEInstallEventHandler(kCoreEventClass, kAEReopenApplication,
                          m_appleEventProcessorUPP, (long) this, true);
#endif
}

QWidget *Application::mainWindow (void) const {
    return(m_mainWindow);
}

6 Comments »

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1. 

   It’s incredible, this is typically which I was looking for (thanks Google ;o)) and this post is from yesterday !!!

   How lucky I am ;o)

   Thanks for this nice article ;o)

   Comment by Florent — August 12, 2008 #

2. 

   This is not working. Is there some particular includes to put in the cpp file or something particular to put in the .pro file ?

   With which SDK this is intended to work ? I’m compiling with an OS X 10.4.11, the XCode 2.5 and the SDK 10.4u.

   I use macx-g++ as the spec to compile on console with make.

   I have errors like that on the console :

   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected identifier before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected `}’ before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected unqualified-id before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:575: error: expected declaration before ‘}’ token
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected identifier before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected `}’ before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:108: error: expected unqualified-id before numeric constant
   /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Headers/OpenTransportProviders.h:575: error: expected declaration before ‘}’ token

   Comment by Florent — August 12, 2008 #

3. 

   Hi again,

   ‘ve just tried at home your sample code and it works with Leopard ! Fantastic ! Thanks a lot.

   I will see later in the morning if I manage to get it working in my real project, with the same environment I told you about in my previous comment.

   I think i’ve done mistakes when integrating your code even if the error messages seems to be related to the OS X SDK.

   Comment by Florent — August 13, 2008 #

4. 

   Your raw sample works like a charm on Tiger with the 104.4u SDK and by compiling as an universal binray.

   But this is still a problem with my real app. I’ve commented all the useful code and it still failed only by including the header

   I think there is a problem with the order of the compilation of the files or perhaps this is related to a two-level inheritance (I have a SingleApplication class inheriting from QApplication then a MyApplication class inheriting from SingleApplication).

   Comment by Florent — August 13, 2008 #

5. 

   Ok, I’ve got it !!!

   I have a conflict between gSOAP and the Mac OS X SDK.

   I was including the gsoap binding proxy before Carbon.h

   #include “SOAP/soapserviceBindingProxy.h”

   // Carbon Headers
   #ifdef Q_WS_MAC
   #include
   #endif

   If I include the manager binding proxy after the Carbon.h include, it compiles but with a lot of warning on symbols redefinition like

   TCP_NODELAY
   TCP_KEEPALIVE
   TCP_MAXSEG
   …

   I don’t know if this symbol redefinition could lead to problems but my app compile and seems to run fine.

   Comment by Florent — August 13, 2008 #

6. 

   Thank you very much for this piece of useful code!
   Great.

   Comment by Dev — May 27, 2009 #

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