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 <coecntrl.h>
#include <eiklabel.h> // 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&amt; 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&amt; 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&amt; /* 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&amt; 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&amt; 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