Chapter 1

TInt iCursorX;
TInt iCursorY;
TUid iViewUid; // UID of view
};
The main point is that the class now implements the abstract interface MCoeView. This is
what turns the class from being an ordinary control into being usable by the view
architecture.
Also, note the following:
� The constructor and ConstructL() functions are now protectedrather than
public. This indicates that CFleetView is now a base class rather than a concrete
class. I found that the 'my fleet' and 'opposition fleet' views behaved differently enough
to be their own classes. They still have most functionality in common, though, and this is
provided by CFleetView.
� It has far fewer data members than the original CFleetView, but it has a new data
member iData.
� It has three public functions for generating sound effects.
Implementing MCoeView
MCoeView's documentation in some SDKs omits some functions, and as the class is quite
cryptic, it's worth looking at its entire declaration:
class MCoeView
{
public:
virtual TVwsViewId ViewId() const=0;
private:
virtual void ViewActivatedL(const TVwsViewId& aPrevViewId,TUid
aCustomMessageId,const
TDesC8& aCustomMessage)=0;
virtual void ViewDeactivated()=0;
protected:
IMPORT_C virtual TVwsViewIdAndMessage
ViewScreenDeviceChangedL();
private:
IMPORT_C virtual void ViewConstructL();
protected:
IMPORT_C virtual TBool ViewScreenModeCompatible(TInt
aScreenMode);
private:
friend class CCoeViewManager;
IMPORT_C virtual void MCoeView_Reserved_2();
};