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examples/ForumNokia/SMSExample/GUI/src/SMSExampleMarkableListContainer.cpp

/*
 * Copyright © 2008 Nokia Corporation.
 */

// INCLUDE FILES
#include "SMSExampleMarkableListContainer.h"
#include "SmsExamplePanics.pan"

#include <akniconarray.h> // CAknIcon
#include <aknlists.h> // CAknDoubleGraphicStyleListBox
#include <barsread.h> // TResource Reader
#include <e32def.h> // STATIC_CAST
#include <SMSExample.mbg> // icons
#include <smsexample.rsg> // R_SMSEXAMPLE_MARKABLE_LISTBOX
#include <stringloader.h> // StringLoader
#include <uikon.hrh> // TKeyCode #defines

#ifdef __UI_FRAMEWORKS_V2__
    #include <GULICON.H>
    #include <AknIconUtils.h>
    #include <FBS.H> //fbscli.lib
#endif

#define KListPosition TPoint(0,0)

const TInt KAknExListAddItemBufLength(512);
const TInt KNumberOfIcons(2);
const TInt KBeginIdx=0;
const TInt KEndIdx=2;

_LIT(KIconSelectedText,"1\t");
_LIT(KIconNotSelectedText,"0\t");

// ----------------------------------------------------------------------------
// CMarkableListContainer::ConstructL(const TRect& aRect)
//
// Symbian OS 2 phase constructor. Creates a Window for the controls, which it
// contains.
// ----------------------------------------------------------------------------
void CMarkableListContainer::ConstructL(const TRect& aRect)
    {
    CreateWindowL();

    // Create the list
    CreateListL();

    iAddress = 0;
    iMessage = 0;

    // Set the icons in the list's drawer
    SetupListIconsL();

    // Set up scroll bars
    SetupScrollBarsL();

    iSelectedIds = new (ELeave) RArray<TMsvId>;

    SetRect(aRect);
    ActivateL();
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::CreateListL()
//
// 2nd phase constructor constructs the iSmsListBox and sets its window.
// ----------------------------------------------------------------------------
void CMarkableListContainer::CreateListL()
    {
    // First phase construction
    iSmsListBox = new (ELeave) CAknDoubleGraphicStyleListBox();
    iSmsListBox->SetContainerWindowL(*this);
    iSmsListBox->SetListBoxObserver(this);

    // Second Phase Construction
    TResourceReader reader;
    CEikonEnv::Static()->CreateResourceReaderLC(reader,
                                                R_SMSEXAMPLE_MARKABLE_LISTBOX);
    iSmsListBox->ConstructFromResourceL(reader);
    CleanupStack::PopAndDestroy(); // reader
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::SetupScrollBarsL()
//
// Create scrollbars. Scrollbars appear automatically.
// ----------------------------------------------------------------------------
void CMarkableListContainer::SetupScrollBarsL()
    {
    iSmsListBox->CreateScrollBarFrameL(ETrue);
    iSmsListBox->ScrollBarFrame()->SetScrollBarVisibilityL(
        CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::SetArraysL(CDesCArrayFlat* aAddress,
//                                    CDesCArrayFlat* aMessage )
//
// Insert both lists into listbox.
// ----------------------------------------------------------------------------
void CMarkableListContainer::SetArraysL(CDesCArrayFlat* aAddress,
                                        CDesCArrayFlat* aMessage )
    {
    iAddress = aAddress;
    iMessage = aMessage;

    for (TInt i = 0; i < aAddress->Count(); i++)
        {
        AddItemL( (*aAddress)[i], (*aMessage)[i] );
        }
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::MarkAllL(TBool aSelectionMode)
//
// Select or deselect all messages that ListBox displayes.
// ----------------------------------------------------------------------------
void CMarkableListContainer::MarkAllL(TBool aSelectionMode)
    {
    if  (iSmsListBox)
        {
        // Not taking ownership
        CTextListBoxModel* model = iSmsListBox->Model();
        model->SetOwnershipType (ELbmOwnsItemArray);
        CDesCArray* smsArray = STATIC_CAST(CDesCArray*,model->ItemTextArray());

        // Change all icon values.
        for (TInt i = 0; i < smsArray->Count(); i++)
            {
            TBuf <KAknExListAddItemBufLength> changeItem( (*smsArray)[i] );


            if ( aSelectionMode ) // Select one item
                {
                // Change the icon to selected
                changeItem.Replace(KBeginIdx, KEndIdx, KIconSelectedText);
                }
            else  // Deselect one item
                {
                // Change the icon to not selected
                changeItem.Replace(KBeginIdx, KEndIdx, KIconNotSelectedText);
                }

                // Delete one item
                smsArray->Delete(i);
                // Insert changed item back.
                smsArray->InsertL(i, changeItem);
            }

            // Change selected ids array to match the case.
            if ( aSelectionMode )
                {
                // Select all.
                SelectItem( 0, ETrue );
                }
            else
                {
                // Deselect all.
                DeSelectItem( 0, ETrue );
                }

            iSmsListBox->HandleItemAdditionL();
        }
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::MarkOrUnMarkL()
//
// Change icon and modify iIdArray to correspond situation.
// The icon is used to display if the item has been selected or not.
// ----------------------------------------------------------------------------
void CMarkableListContainer::MarkOrUnMarkL()
    {
    if  (iSmsListBox)
        {
        // Cursor's current position
        TInt itemIndex = iSmsListBox->CurrentItemIndex();

        if (itemIndex >= 0)
            {
            // not taking ownership
            CTextListBoxModel* model = iSmsListBox->Model();
            model->SetOwnershipType (ELbmOwnsItemArray);
            CDesCArray* smsArray = STATIC_CAST(CDesCArray*,
                                               model->ItemTextArray());

            if( smsArray->Count() <= itemIndex )
                {
                User::Leave(KErrTooBig);
                }

            TBuf <KAknExListAddItemBufLength> changeItem(
                                                        (*smsArray)[itemIndex]
                                                        );

            // Compare index to see which is the case. Deselected -> Selected
            if ( changeItem.Left(KEndIdx) == KIconNotSelectedText )
                {
                changeItem.Replace(KBeginIdx, KEndIdx, KIconSelectedText);
                // Modify iIdArray
                SelectItem( itemIndex, EFalse );
                } // Selected -> Deselected
            else if ( changeItem.Left(KEndIdx) == KIconSelectedText )
                {
                changeItem.Replace(KBeginIdx, KEndIdx, KIconNotSelectedText);
                // Modify iIdArray
                DeSelectItem( itemIndex, EFalse );
                }

            smsArray->Delete(itemIndex);
            smsArray->InsertL(itemIndex, changeItem);

            iSmsListBox->HandleItemAdditionL();
            }
        }
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::SelectItem(TInt aIndex, TBool aSelectAll)
//
// Select item.
// ----------------------------------------------------------------------------
void CMarkableListContainer::SelectItem(TInt aIndex, TBool aSelectAll)
    {
    // Copy
    if ( aSelectAll )
        {
        iSelectedIds->Reset();
        for (TInt i = 0; i < iIdArray->Count(); i++)
            {
            iSelectedIds->Append( (*iIdArray)[i] );
            }
        }
    else if( iIdArray->Count() > aIndex )
        {
        TMsvId id = (*iIdArray)[aIndex];
        // Try to find the id, if not present then append id onto list.
        if ( KErrNotFound == iSelectedIds->Find( id ) )
            {
            iSelectedIds->Append( id );
            }
        }
    else
        {
        Panic(EGuiGeneral);
        }

    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::DeSelectItem(TInt aIndex, TBool aDeselectAll)
//
// Deselect item.
// ----------------------------------------------------------------------------
void CMarkableListContainer::DeSelectItem(TInt aIndex, TBool aDeselectAll)
    {
    if ( aDeselectAll )
        {
        iSelectedIds->Reset();
        }
    else if( iIdArray->Count() > aIndex )
        {
        TInt index = iSelectedIds->Find( (*iIdArray)[aIndex] );

        if ( index != KErrNotFound  )
            {
            iSelectedIds->Remove( index );
            }
        }
    else
        {
        Panic(EGuiGeneral);
        }

    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::SetupListIconsL()
//
// Create icon array.
// ----------------------------------------------------------------------------
void CMarkableListContainer::SetupListIconsL()
    {
    // Get the name of the file containing the icons
    HBufC* iconFilename = NULL;
    iconFilename = StringLoader::LoadLC(R_ICON_FILE_NAME); //#ifdef in loc file
    // Create an array of icons, reading them from the file
    CArrayPtr<CGulIcon>* icons = new(ELeave) CAknIconArray(KNumberOfIcons);
    CleanupStack::PushL(icons);

    #ifdef __UI_FRAMEWORKS_V2__ // NOT IN FP3, should executed also there
                                // because scalable ui is supported
        CFbsBitmap* icon = NULL;
        CFbsBitmap* iconMask = NULL;
        CFbsBitmap* icon2 = NULL;
        CFbsBitmap* iconMask2 = NULL;

        AknIconUtils::CreateIconLC(icon, iconMask, *iconFilename,
                                   EMbmSmsexampleTock,EMbmSmsexampleTock_mask);


        CGulIcon* guiIcon = CGulIcon::NewL( icon, iconMask );
        CleanupStack::PushL(guiIcon);
        icons->AppendL( guiIcon );
        CleanupStack::Pop(guiIcon);
        CleanupStack::Pop(2); //icon, iconMask

        AknIconUtils::CreateIconLC(icon2, iconMask2, *iconFilename,
                                   EMbmSmsexampleTick,EMbmSmsexampleTick_mask);

        CGulIcon* guiIcon2 = CGulIcon::NewL( icon2, iconMask2 );
        CleanupStack::PushL(guiIcon2);
        icons->AppendL( guiIcon2 );
        CleanupStack::Pop(guiIcon2);
        CleanupStack::Pop(2); //icon2, iconMask2
    #else
        CGulIcon* icon = iEikonEnv->CreateIconL(*iconFilename,
                                                EMbmSmsexampleTock,
                                                EMbmSmsexampleTock_mask);
        CleanupStack::PushL(icon);
        icons->AppendL(icon);
        CleanupStack::Pop(icon);
        icon =iEikonEnv->CreateIconL(*iconFilename, EMbmSmsexampleTick,
                                                    EMbmSmsexampleTick_mask);
        CleanupStack::PushL(icon);
        icons->AppendL(icon);
        CleanupStack::Pop(icon);
    #endif

    CleanupStack::Pop(icons);

    CleanupStack::PopAndDestroy(iconFilename);

    // passing ownership of icons
    iSmsListBox->ItemDrawer()->ColumnData()->SetIconArray(icons);
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::NewL(const TRect& aRect)
//
// Symbian OS 2 phase constructor.
// ----------------------------------------------------------------------------
CMarkableListContainer* CMarkableListContainer::NewL(const TRect& aRect)
    {
    CMarkableListContainer* self = CMarkableListContainer::NewLC(aRect);
    CleanupStack::Pop(self);
    return self;
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::NewLC(const TRect& aRect)
//
// Symbian OS 2 phase constructor.
// ----------------------------------------------------------------------------
CMarkableListContainer* CMarkableListContainer::NewLC(const TRect& aRect)
    {
    CMarkableListContainer* self = new (ELeave) CMarkableListContainer;
    CleanupStack::PushL(self);
    self->ConstructL(aRect);
    return self;
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::~CMarkableListContainer()
//
// Destructor.
// ----------------------------------------------------------------------------
CMarkableListContainer::~CMarkableListContainer()
    {
    Cleanup();
    }

void CMarkableListContainer::Cleanup()
    {
    iIdArray->Reset();
    delete iIdArray;
    iIdArray = 0;

    iAddress->Reset();
    delete iAddress;
    iAddress = 0;

    iMessage->Reset();
    delete iMessage;
    iMessage = 0;

    delete iSmsListBox;
    iSmsListBox = 0;
    }
// ----------------------------------------------------------------------------
// CMarkableListContainer::SizeChanged()
//
// Called by framework when the view size is changed
// ----------------------------------------------------------------------------
void CMarkableListContainer::SizeChanged()
    {
    iSmsListBox->SetExtent (KListPosition, iSmsListBox->MinimumSize());
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::CountComponentControls() const
//
// Called by the framework in compound controls
// ----------------------------------------------------------------------------
TInt CMarkableListContainer::CountComponentControls() const
    {
    return 1; // return number of controls inside this container
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::ComponentControl(TInt aIndex) const
//
// Called by the framework in compound controls
// ----------------------------------------------------------------------------
CCoeControl* CMarkableListContainer::ComponentControl(TInt aIndex) const
    {
    switch (aIndex)
        {
        case 0:
            return iSmsListBox;
        default:
            return NULL;
        }
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::Draw(const TRect& aRect) const
//
// Called by the framework to draw this control.
// ----------------------------------------------------------------------------
void CMarkableListContainer::Draw(const TRect& aRect) const
    {
    CWindowGc& gc = SystemGc();
    gc.Clear(aRect);
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::OfferKeyEventL(const TKeyEvent& aKeyEvent,
//                                              TEventCode aType)
//
// Called by the framework whenever a key event occurs.
// ----------------------------------------------------------------------------
TKeyResponse CMarkableListContainer::OfferKeyEventL(const TKeyEvent& aKeyEvent,
                                                    TEventCode aType)
    {
    if (iSmsListBox)
        return iSmsListBox->OfferKeyEventL (aKeyEvent, aType);
    else
        return EKeyWasNotConsumed;
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::SetIdArray(RArray<TMsvId>* aArray)
// ----------------------------------------------------------------------------
void CMarkableListContainer::SetIdArray(RArray<TMsvId>* aArray)
    {
    iIdArray = aArray;
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::GetSelectedItems()
//
// Return an array of items that have been selected.
// ----------------------------------------------------------------------------
RArray<TMsvId>* CMarkableListContainer::GetSelectedItems()
    {
    return iSelectedIds;
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::HandleListBoxEventL(CEikListBox* /*aListBox*/,
//                                             TListBoxEvent aListBoxEvent)
//
// Called by the framework whenever a list event occurs for which this container
// is an observer.
// ----------------------------------------------------------------------------
void CMarkableListContainer::HandleListBoxEventL(CEikListBox* /*aListBox*/,
                                                 TListBoxEvent aListBoxEvent)
    {
    // if the Select Key has been pressed
    if ((aListBoxEvent == MEikListBoxObserver::EEventEnterKeyPressed) ||
        (aListBoxEvent == MEikListBoxObserver::EEventItemDoubleClicked))
        {
        MarkOrUnMarkL();
        }
    }

// ----------------------------------------------------------------------------
// CMarkableListContainer::AddItemL(const TDesC& aNewItem)
//
// Add an item into the listbox.
// ----------------------------------------------------------------------------
void CMarkableListContainer::AddItemL(const TDesC& aFirstLabel,
                                      const TDesC& aSecondLabel)
    {
    CTextListBoxModel* model = iSmsListBox->Model();
    model->SetOwnershipType (ELbmOwnsItemArray);
    CDesCArray* smsArray = static_cast <CDesCArray*> (model->ItemTextArray());

    TBuf <KAknExListAddItemBufLength> addedItem( KBeginIdx );

    // List item string format: "0\tFirstLabel\tSecondLabel\t0"
    // where 0 is index to icon array
    // Listbox icon is required at the beginning of a descriptor,
    //" \t" if there is no icon.
    _LIT( KBeginning, "0\t");
    addedItem.Append( KBeginning );
    addedItem.Append( aFirstLabel );

    // Second icon is always empty.
    _LIT( KEnd, "\t");
    addedItem.Append( KEnd );
    addedItem.Append( aSecondLabel );
    addedItem.Append( KEnd );

    // Insert a new item into the array
    smsArray->AppendL( addedItem );

    iSmsListBox->HandleItemAdditionL();
    }

// End of file

---

Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License v1.0.