www.pudn.com > Audio_Streaming_Example_v1_0.zip > AudioStreamView.h

/* 
* ============================================================================ 
*  Name     : CAudioStreamView from AudioStreamView.h 
*  Part of  : AudioStream 
*  Created  : 24.11.2003 by Nokia Forum 
*  Description: 
*     Declares container control for application. 
*  Version  : 
*  Copyright: Nokia Corporation 
* ============================================================================ 
*/ 
 
#ifndef AUDIOSTREAMVIEW_H 
#define AUDIOSTREAMVIEW_H 
 
// INCLUDES 
#include  
#include 		// for example label control 
#include "AudioStreamEngine.h" 
    
// FORWARD DECLARATIONS 
class CAudioStreamEngine; 
 
// CLASS DECLARATION 
 
/** 
*  CAudioStreamView  container control class. 
*   
*/ 
class CAudioStreamView : public CCoeControl, MCoeControlObserver 
{ 
public:  
 
/*! 
 * NewL() 
 *  
 * discussion Create new CAudioStreamView object, being able to draw  
 *    itself into aRect 
 * 
 * param aRect the rectangle this view will be drawn to 
 * param aEngine the engine which core logic is used by this simple view 
 * return a pointer to the created instance of CAudioStreamView 
 */ 
    static CAudioStreamView* NewL(const TRect& aRect,  
		CAudioStreamEngine* aEngine); 
 
/*! 
 * NewLC() 
 *  
 * discussion Create new CAudioStreamView object, being able to draw 
 *    itself into aRect 
 * 
 * param aRect the rectangle this view will be drawn to 
 * return a pointer to the created instance of CAudioStreamView  
 *    which has also been pushed to cleanup stack 
 */ 
    static CAudioStreamView* NewLC(const TRect& aRect,  
		CAudioStreamEngine* aEngine); 
 
 
/*! 
 * ~CAudioStreamView() 
 * 
 * discussion Destroy the object and release all memory objects 
 */ 
	~CAudioStreamView(); 
         
public: // New functions 
 
/*! 
 * ShowMessageL() 
 * 
 * discussion Displays application messages for user 
 * 
 * param aMsg text to be displayed 
 */ 
	void ShowMessageL(const TDesC& /* aMsg */); 
 
public: // Functions from base classes 
 
private: // Basic two-phase EPOC constructors 
 
/*! 
 * ConstructL() 
 * 
 * discussion Perform the second phase construction of a CAudioStreamView 
 *    object 
 * 
 * param aRect Frame rectangle for container. 
 */ 
    void ConstructL(const TRect& aRect, CAudioStreamEngine* aEngine); 
  
/*! 
 * CAudioStreamView() 
 * 
 * discussion Perform the first phase of two phase construction  
 */ 
    CAudioStreamView(); 
 
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; 
 
     
	/** 
	* 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); 
     
private: // New functions 
     
         
private: // data members 
 
	// Reference for engine object 
	CAudioStreamEngine* iEngine;		 
	// Label displaying the application messages to user 
	CEikLabel* iLabel; 
	 
}; 
 
#endif 
 
// End of File