dbmsexamplecontainer.h

SymbianOS的DBMS实例 详细的代码揭示SymbianOS数据库管理系统的使用 很规范

/*
* ============================================================================
*  Name     : DBMSexampleContainer.h
*  Part of  : DBMSexample
*  Created  : 02/28/2003 by Forum Nokia
*  Description:
*     Declares container control for application.
*  Version  :
*  Copyright: Nokia Corporation, 2003
* ============================================================================
*/

#ifndef DBMSEXAMPLECONTAINER_H
#define DBMSEXAMPLECONTAINER_H

// INCLUDES
#include <coecntrl.h>
   
// FORWARD DECLARATIONS
class CEikLabel;					// for example labels
class CAknDoubleStyleListBox;
class CDesC16Array;
class CDBMSengine;
class MDBMSobserver;

// CLASS DECLARATION
class CEikButtonGroupContainer;

/**
*  CDBMSexampleContainer  container control class.
*  
*/
class CDBMSexampleContainer : public CCoeControl, MCoeControlObserver
    {
    public: // Constructors and destructor
        
        /**
        * EPOC default constructor.
        * @param aRect Frame rectangle for container.
        */
        void ConstructL(const TRect& aRect);

        /**
        * Destructor.
        */
        ~CDBMSexampleContainer();

    public: // Functions from base classes
		TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);

    public: // New functions
	    TBool DisplayTheListboxL(CDesC16Array& aList);
		void DisplayFormL( TInt aResourceId, TInt aType, 
			               MDBMSobserver* aObserver );
	    TBool IsListBoxConstructed();
	    void ClearContentsInListBox();
	    CDBMSengine* GetEngine();
		TBool CDBMSexampleContainer::DisplayRecordsL();

    private: // Functions from base classes

       /**
        * From CoeControl,SizeChanged.
        */
        void SizeChanged();

       /**
        * From CoeControl,CountComponentControls.
        */
        TInt CountComponentControls() const;

       /**
        * From CCoeControl,ComponentControl.
        */
        CCoeControl* ComponentControl(TInt aIndex) const;

       /**
        * From CCoeControl,Draw.
        */
        void Draw(const TRect& aRect) const;

       /**
        * event handling section
		* e.g Listbox events
        */
        void HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType);
        
    private: //data
        
        CAknDoubleStyleListBox* iListBox;
        CEikLabel* iLabel;
		CDBMSengine* iEngine;

		CEikButtonGroupContainer* iCba;
    };

#endif

// End of File