btnviewcontainer.cpp

symbian下自制按钮实现

// BtnViewContainer.cpp: implementation of the CBtnViewContainer class.
//
//////////////////////////////////////////////////////////////////////

#include "MySymStd.h"
#include "BtnViewContainer.h"
#include <barsread.h>  
#include <aknnotewrappers.h> 

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CBtnViewContainer::CBtnViewContainer()
{
    igBtn[0] = NULL ;
	igBtn[1] = NULL ;
    igBtn[2] = NULL ;  
  //  iLabel1 = NULL ;
}

CBtnViewContainer::~CBtnViewContainer()
{
   delete igBtn[0] ;
   delete igBtn[1] ;
   delete igBtn[2] ;
  // delete iLabel1 ;
}

CBtnViewContainer* CBtnViewContainer::NewL( const TRect& aRect,	const CCoeControl* aParent )
{
    CBtnViewContainer * self =CBtnViewContainer::NewLC(aRect,aParent) ;
	CleanupStack::Pop(self) ;
	return self ;
}

CBtnViewContainer* CBtnViewContainer::NewLC( const TRect& aRect,	const CCoeControl* aParent )
{
   CBtnViewContainer * self = new(ELeave)CBtnViewContainer(  ) ;
   CleanupStack::PushL(self) ;
   self->ConstructL(aRect , aParent) ;
   return self ;
}

void CBtnViewContainer::ConstructL( const TRect& aRect,	const CCoeControl* aParent )
{
    if ( !aParent )
    {
    	CreateWindowL( );
    }
    else
    {
        SetContainerWindowL( *aParent );
    }

    InitControlsL(  );
    SetRect( aRect );
	ActivateL(  );

}

TInt CBtnViewContainer::CountComponentControls( ) const
{
	return (int) ELastControl ;
	//return 1 ;
}

CCoeControl* CBtnViewContainer::ComponentControl( TInt aIndex ) const
{
	
     if(aIndex < 0 || aIndex > 2 )
		  return NULL ;

	 return  igBtn[aIndex] ;
	 
	//return iLabel1 ;
}

TKeyResponse CBtnViewContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent,TEventCode aType )
{

    if (aType != EEventKey)
	{
		return EKeyWasNotConsumed;
	}

    if (aKeyEvent.iScanCode == EStdKeyUpArrow)
	{
        igBtn[inCurrBtn]->SetFocus(EFalse,EDrawNow) ; 
        inCurrBtn-- ;
		if( inCurrBtn < 0 )
		   inCurrBtn= 2 ; 	
        igBtn[inCurrBtn]->SetFocus( ETrue,EDrawNow ) ; 
	    return EKeyWasConsumed;
	}
	else if (aKeyEvent.iScanCode == EStdKeyDownArrow)
	{
	    igBtn[inCurrBtn]->SetFocus(EFalse,EDrawNow) ; //原来的失去焦点 
	
        inCurrBtn++ ; 
        inCurrBtn %= 3 ;
        igBtn[inCurrBtn]->SetFocus(ETrue,EDrawNow) ; //现在的获取焦点  
		return EKeyWasConsumed;
	}
	else if (aKeyEvent.iScanCode == EStdKeyDevice3)
	{
          TBuf<20> strHint ;   
          switch (inCurrBtn) 
          {
            case EBtnUp :
			{
    			_LIT(kStrUP,"正在上传!") ;
                strHint.Append(kStrUP)  ;
                break;
			}
            case EBtnDown :
			{ 
			    _LIT(kStrDown,"正在下载!") ;
                strHint.Append(kStrDown)  ;
                break; 
			}
            case EBtnView :
			{
				 _LIT(kStrView,"正在查看!") ;
                strHint.Append(kStrView)  ;
                break ;                
			}

            default :
				//User::Panic(KShapeDrawerPanicName, EShapeDrawerInvalidBrushType);
				return  EKeyWasConsumed  ;
         }

		CAknInformationNote * pNote = new(ELeave)CAknInformationNote( ) ;
 		pNote->ExecuteLD(strHint ) ;
       
		return EKeyWasConsumed;
	}

   	return EKeyWasNotConsumed ;  
}

void CBtnViewContainer::Draw( const TRect& aRect ) const 
{
	CWindowGc& gc = SystemGc( );
	gc.Clear( aRect );
}

void CBtnViewContainer::SizeChanged(  )
{    
	CCoeControl::SizeChanged( );
	LayoutControls(  ) ;

}

void CBtnViewContainer::LayoutControls( )
{

   igBtn[0]->SetExtent(TPoint(5,5),TSize(50,20) ) ;
   igBtn[1]->SetExtent(TPoint(5,30),TSize(50,20) ) ;
   igBtn[2]->SetExtent(TPoint(5,55),TSize(50,20) ) ;
   
  //iLabel1->SetExtent( TPoint(5,5),TSize(50,20) );

}

void CBtnViewContainer::InitControlsL( )
{
    /*
    iLabel1 = new (ELeave) CEikLabel ; 
	iLabel1->SetContainerWindowL( *this );
	{
		TResourceReader reader;
		iEikonEnv->CreateResourceReaderLC( reader, R_STUSYM_BTNCONT_UPLOAD );
		iLabel1->ConstructFromResourceL( reader );
		CleanupStack::PopAndDestroy(); // reader internal state
	}
	*/


       TRect  cltRect= Rect( ) ;
  	   TRect btnRect ;
	   TPoint iTl ;
        iTl =cltRect.iTl;
       btnRect.iTl = TPoint(iTl.iX + 5, iTl.iY + 5) ;
	   btnRect.SetWidth( 50 ) ;
       btnRect.SetHeight(20 ) ;
       _LIT(kStrUp,"上传");
		igBtn[0] = CBtnCtrl::NewL(btnRect,this,kStrUp);
        igBtn[0]->SetFocus(ETrue , EDrawNow ) ;

		 iTl =cltRect.iTl;
        btnRect.iTl = TPoint(iTl.iX + 5, iTl.iY + 30) ;
	    btnRect.SetWidth( 50 ) ;
        btnRect.SetHeight(20 ) ;
        _LIT(kStrDown,"下载");

		igBtn[1]= CBtnCtrl::NewL(btnRect,this,kStrDown);

		iTl =cltRect.iTl;
        btnRect.iTl = TPoint(iTl.iX + 5, iTl.iY + 55) ;
	    btnRect.SetWidth( 50 ) ;
        btnRect.SetHeight(20 ) ;
        _LIT(kStrView,"查看");
		igBtn[2] = CBtnCtrl::NewL(btnRect,this,kStrView);

     
}