logexamplecontainer.h

Log Engine的使用

/*
* ============================================================================
*  Name     : CLogExampleContainer from LogExampleContainer.h
*  Part of  : LogExample
*  Created  : 26.05.2005 by Forum Nokia 
*  Description:
*     Declares container control for application.
*  Version  : 1.0
*  Copyright: Nokia Corporation
* ============================================================================
*/

#ifndef __LOGEXAMPLECONTAINER_H__
#define __LOGEXAMPLECONTAINER_H__

// INCLUDE FILES
#include <coecntrl.h>
#include <eiklbo.h>  		// MEikListBoxObserver
#include <badesca.h> 		// CDescArray
#include <logwrap.h>

#include "EventsObserver.h" // MEventsObserver

// FORWARD DECLARATIONS
class CEikLabel;        // for example labels
class CAknColumnListBox;

// CLASS DECLARATION

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

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

public: // New functions

	/**
	* Resets events
	*/
	void ResetEventList();
	
	/**
	* Shows event's details
	*/	
	void ShowEventDetailsL();
	
	/**
	* Sets visibility
	*/
	void MakeVisible(TBool& aVisibility);
	
	/**
	* Returns true if visible
	*/
	TBool IsListBoxVisible();
	
	/**
	* Gets selected id
	* @param aSelectedId  
	*/
	void GetSelectedId(TLogId& aSelectedId);
	
	/**
	* Returns items count
	* @return count of items in list box
	*/
	TInt ListBoxItemCount();

public: // Functions from base classes (MEventsObserver)

    /**
    * Reads a notify
    * @param aEvent event to be read
    */	
	void NotifyEventReadL(const CLogEvent& aEvent);
	
	/**
	* Reads a notify
	* @param aEvent event to be read
	*/
	void NotifyEventAddedL(const CLogEvent& aEvent);
	
    /**
    * Notifies an event is deleted
    */
	void NotifyEventDeletedL();	

private: // Functions from base classes

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

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

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

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

	/**
	* From MCoeControlObserver
	* Acts upon changes in the hosted control's state. 
	*
	* @param	aControl	The control changing its state
	* @param	aEventType	The type of control event 
	*/
    void HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType);
    
    /**
    * From MEikListBoxObserver
    *
    * @param aListBox
    * @param aListBoxEvent    
    */
    void HandleListBoxEventL(CEikListBox* aListBox, TListBoxEvent aListBoxEvent);

private: // New functions

	/**
	* GetListBoxModel()
	* @return Pointer to array of listbox model
	*/     	
	CDesCArray* GetListBoxModel();
	
	/**
	* OfferKeyEventL
	*
	* Framework calls this method when a key event occurs.
	*
	* @param aKeyEvent
	* @param aType
	*/

	TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);
	
private: //Data members
    
    CEikLabel* iLabel;          // example label
    CAknColumnListBox* iEventsListBox; // events list
	CArrayPtrFlat<CLogEvent>* iLogEvents;
	TInt iDeleteIndex;      
    };

#endif

// End of File