sttspanescontextcontainer.cpp

《基于Symbian OS的手机开发与应用实践》这本书的配套源码。

/*
* ============================================================================
*  Name     : CSttsPanesContextContainer from SttsPanesContextContainer.cpp
*  Part of  : SttsPanes
*  Created  : 02.04.2005 by ToBeReplacedByAuthor
*  Implementation notes:
*     Initial content was generated by Series 60 Application Wizard.
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

// INCLUDE FILES
#include "SttsPanesContextContainer.h"

#include <barsread.h>  // BAFL, for resource reader
#include <akntitle.h> // for title pane
#include <akncontext.h> 
#include <avkon.hrh>
#include <SttsPanes.mbg>
#include <SttsPanes.rsg>

#include "SttsPanes.hrh"

_LIT( KSttsPanesBitMapFile, "\\system\\apps\\sttspanes\\sttspanes.mbm" );

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CSttsPanesContextContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CSttsPanesContextContainer::ConstructL(const TRect& aRect)
    {
    CreateWindowL();

    CEikStatusPane* sp = iEikonEnv->AppUiFactory()->StatusPane();
    iContextPane = static_cast<CAknContextPane*>(sp->ControlL( TUid::Uid( EEikStatusPaneUidContext ) ));
    
    iListBox = new(ELeave)CAknSingleStyleListBox();
    iListBox->SetContainerWindowL(*this);
    TResourceReader reader;
    CEikonEnv::Static()->CreateResourceReaderLC(reader, R_CONTEXTCONTAINER_LISTBOX);
    iListBox->ConstructFromResourceL( reader );
    CleanupStack::PopAndDestroy(); // resource stuffs. 
    iListBox->ActivateL();
    iListBox->CreateScrollBarFrameL(ETrue);
    iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOn, CEikScrollBarFrame::EOn);

    SetRect(aRect);
    ActivateL();
    }

// Destructor
CSttsPanesContextContainer::~CSttsPanesContextContainer()
    {
    delete iListBox;
    }

// ---------------------------------------------------------
// CSttsPanesContextContainer::SizeChanged()
// Called by framework when the view size is changed
// ---------------------------------------------------------
//
void CSttsPanesContextContainer::SizeChanged()
    {
    iListBox->SetRect( Rect());
    }

// ---------------------------------------------------------
// CSttsPanesContextContainer::CountComponentControls() const
// ---------------------------------------------------------
//
TInt CSttsPanesContextContainer::CountComponentControls() const
    {
    return 1; // return nbr of controls inside this container
    }

// ---------------------------------------------------------
// CSttsPanesContextContainer::ComponentControl(TInt aIndex) const
// ---------------------------------------------------------
//
CCoeControl* CSttsPanesContextContainer::ComponentControl(TInt aIndex) const
    {
    switch ( aIndex )
        {
        case 0:
            return iListBox;
        default:
            return NULL;
        }
    }

// ---------------------------------------------------------
// CSttsPanesContextContainer::Draw(const TRect& aRect) const
// ---------------------------------------------------------
//
void CSttsPanesContextContainer::Draw(const TRect& /*aRect*/) const
    {
    }

// ---------------------------------------------------------
// CSttsPanesContextContainer::OfferKeyEventL(...)
// Notify key events to editors.
// ---------------------------------------------------------
//
TKeyResponse CSttsPanesContextContainer::OfferKeyEventL(
    const TKeyEvent& aKeyEvent, TEventCode aType)
    {
    if ( aType != EEventKey ) 
        {
        return EKeyWasNotConsumed;
        }
    if (aKeyEvent.iCode == EKeyRightArrow || aKeyEvent.iCode == EKeyLeftArrow)
        {
        return EKeyWasNotConsumed;
        }
    if (iListBox)
        {
        TKeyResponse ret = iListBox->OfferKeyEventL(aKeyEvent, aType);
        if (aKeyEvent.iCode == EKeyUpArrow || aKeyEvent.iCode == EKeyDownArrow)
            {
            TInt idx (iListBox->CurrentItemIndex());
            ChangeContextPaneL(idx);
            }
        return ret;
        }
    return EKeyWasNotConsumed;
    }

void CSttsPanesContextContainer::ChangeContextPaneL(const TInt& aIdx)
    {
    switch (aIdx)
        {
        case 0: // default
            {
            iContextPane->SetPictureToDefaultL();
            break;
            }
        case 1:    // small indicator
            {
            iContextPane->SetPictureFromFileL (KSttsPanesBitMapFile, EMbmSttspanesContext1,EMbmSttspanesContext1mask);
            break;
            }
        case 2: // standard image
            {
            iContextPane->SetPictureFromFileL (KSttsPanesBitMapFile, EMbmSttspanesContext2,EMbmSttspanesContext2mask);
            break;
            }
        case 3: // from resource
            {
            TResourceReader reader;
            iCoeEnv->CreateResourceReaderLC( reader,R_STTSPANES_IMAGE_RESOURCE );
            iContextPane->SetFromResourceL( reader );
            CleanupStack::PopAndDestroy();  // resource reader
            break;
            }
        default:
            {
            iContextPane->SetPictureToDefaultL();
            break;
            }
        }    
    }
// End of File