aknexlistcolumncontainer.cpp

symbian ui的 例子 初学者可以 好好看看,这个是培训的资料,应该比较宝贵

                {
                style = CAknSearchField::EPopup;
                }

            // Creates FindBox.
            iFindBox = CreateFindBoxL( iListBox, iListBox->Model(), style );

            if ( iFindBox && style == CAknSearchField::EPopup )
                {
                // Popup findbox is not shown when listbox display initial.
                iFindBox->MakeVisible( EFalse );
                }

            }

        SizeChanged();

        if ( flagsOfNumber )
            {
            // Automatic numbering.
            AutoNumberingL( iListBox );
            }

        if ( flagsOfGraphic )
            {
            // Creates graphic.
            SetGraphicIconL( iListBox );
            }

        
        if ( emptyResourceId )
            {
            // Sets empty text.
            SetEmptyListL( iListBox, emptyResourceId );
            }


        //ActivateL();
        iListBox->ActivateL();

        if ( iFindBox && flagsOfPopup )
            {
            // For window owning overlay control when findbox is popup.
            iFindBox->ActivateL();
            }

        // Update scrollbar in order to draw correct scroll bar.
        UpdateScrollBar( iListBox );
        }

    DrawNow();

    if ( messageId )
        {
        InfoMessage( messageId ); // Displays information message.
        }
    }


// ----------------------------------------------------------------------------
// CAknExListColumnContainer::OfferKeyEventL()
// Handles the key events.
// ----------------------------------------------------------------------------
//
TKeyResponse CAknExListColumnContainer::OfferKeyEventL( 
    const TKeyEvent& aKeyEvent,
    TEventCode aType )
    {
    if ( aType != EEventKey ) // Is not key event?
        {
        return EKeyWasNotConsumed;
        }

    CAknTabGroup* tabGroup = iView->TabGroup();
    TChar charCode( aKeyEvent.iCode );

    switch ( charCode ) // The code of key event is...
        {
        case EKeySpace: // Space key.
            iView->DisplayNextOutlineL();
            return EKeyWasConsumed;

        // Switches tab.
        case EKeyLeftArrow: // Left key.
        case EKeyRightArrow: // Right Key.
            if ( tabGroup ) // Is tab group created?
                {
                if ( tabGroup->OfferKeyEventL( aKeyEvent, aType ) ==
                     EKeyWasConsumed )
                    {
                    iView->SwitchDisplayOutlineL( 
                        tabGroup->TabIdFromIndex( 
                            tabGroup->ActiveTabIndex() ) );
                    return EKeyWasConsumed;
                    }
                }
            break;
        default:
            break;
        }

    switch ( iOutlineId )
        {
        case EAknExListCmdOutline66:
            {
            if ( charCode == AKNEXLIST_ADDINGTYPE1_KEY || 
                charCode == AKNEXLIST_ADDINGTYPE2_KEY ||
                charCode == AKNEXLIST_ADDINGTYPE3_KEY ||
                charCode == AKNEXLIST_ADDINGTYPE4_KEY ||
                charCode == AKNEXLIST_ADDINGTYPE5_KEY )
                {
                SetCountAndAddItemL( aKeyEvent ); // Adds list item.
                return EKeyWasConsumed;
                }
            else if ( charCode == AKNEXLIST_REMOVINGTYPE1_KEY || 
                charCode == AKNEXLIST_REMOVINGTYPE2_KEY ||
                charCode == AKNEXLIST_REMOVINGTYPE3_KEY ||
                charCode == AKNEXLIST_REMOVINGTYPE4_KEY ||
                charCode == AKNEXLIST_REMOVINGTYPE5_KEY )
                {
                SetCountAndRemoveItemL( aKeyEvent ); // Removes list item.
                return EKeyWasConsumed;
                }
            break;
            }
        case EAknExListCmdOutline44:
            {
            if ( charCode == AKNEXLIST_ICONPRIORITY_KEY )
                {
                // Confirms priority of additional icons.
                AdditionalIconPriorityL();
                return EKeyWasConsumed;
                }
            break;
            }
        case EAknExListCmdOutline10:
        case EAknExListCmdOutline14:
            {
            if ( charCode == AKNEXLIST_AUTONUMBERING_KEY )
                {
                // Automatic numbering.
                AutoNumberingL( iListBox );
                // Updates listbox.
                iListBox->DrawNow();
                // Displays information message.
                InfoMessage( R_AKNEXLIST_AUTO_NUMBERING_MSG );
                return EKeyWasConsumed;
                }
            break;
            }
        case EAknExListCmdOutline30T1:
        case EAknExListCmdOutline30T2:
        case EAknExListCmdOutline31:
            {
            if ( charCode == AKNEXLIST_MARKEDINDEX_KEY )
                {
                // Displays message of marked item index.
                if ( iListBox )
                    {
                    InfoMarkedItemIndexL( iListBox->SelectionIndexes() );
                    }
                return EKeyWasConsumed;
                }
            break;
            }
        default:
            {
            break;
            }
        }

        
    if ( iListBox )
        {
        if ( iFindBox )
            {
            TBool needRefresh( EFalse );
            TBool flagsOfPopup( EFalse );

            if ( iOutlineId == EAknExListCmdOutline41T2 )
                {
                flagsOfPopup = ETrue;
                }

            // Offers the key event to find box.
            if ( AknFind::HandleFindOfferKeyEventL( aKeyEvent, aType, this,
                                                    iListBox, iFindBox,
                                                    flagsOfPopup,
                                                    needRefresh ) ==
                                                        EKeyWasConsumed )
                {
                if ( needRefresh )
                    {
                    SizeChangedForFindBox();
                    DrawNow();
                    }

                return EKeyWasConsumed;
                }
            }

        return iListBox->OfferKeyEventL( aKeyEvent, aType );
        }
    else
        {
        return EKeyWasNotConsumed;
        }
    }

// ----------------------------------------------------------------------------
// CAknExListColumnContainer::HandleListBoxEventL()
// Handles listbox event.
// ----------------------------------------------------------------------------
void CAknExListColumnContainer::HandleListBoxEventL( 
    CEikListBox* /*aListBox*/,
    TListBoxEvent aEventType )
    {
    if ( ( aEventType == MEikListBoxObserver::EEventEnterKeyPressed ) ||
         ( aEventType == MEikListBoxObserver::EEventItemClicked ) )
        {
        if ( iOutlineId == EAknExListCmdOutline27 )
            {
            // Displays information message.
            InfoMessage( R_AKNEXLIST_ITEM_OPEN );
            }
        else if ( iOutlineId == EAknExListCmdOutline80 )
            {
            // Gets current selected item index.
            TInt currentItem( iListBox->CurrentItemIndex() );

            switch ( currentItem )
                {
                case EKAknExListItemIndex0:
                    {
                    // Displays information message.
                    InfoMessage( R_AKNEXLIST_ITEM_OPEN );
                    }
                    break;
                case EKAknExListItemIndex1:
                    // Displays Sub of OUTLINE80 screen.
                    DisplayListBoxL( EAknExListCmdOutline80Sub );
                    break;
                default:
                    break;
                }
            }
        else if ( iOutlineId == EAknExListCmdOutline80Sub )
            {
            // Gets current selected item index.
            TInt currentItem( iListBox->CurrentItemIndex() );

            if ( currentItem == EKAknExListItemIndex0 )
                {
                // Displays OUTLINE80 screen.
                DisplayListBoxL( EAknExListCmdOutline80 );
                }
            }
        }
    }



// ----------------------------------------------------------------------------
// CAknExListColumnContainer::SetLabelL()
// Creates and sets label control object.
// ----------------------------------------------------------------------------
//
void CAknExListColumnContainer::SetLabelL( const TInt aResourceId )
    {
    // Sets start screen label.
    if ( !iLabel )
        {
        TBuf<KAknExListLabelBufLength> initFormat( 0 );
        iCoeEnv->ReadResource( initFormat, aResourceId );
        iLabel = new ( ELeave ) CEikLabel();
        iLabel->SetContainerWindowL( *this );
        iLabel->SetTextL( initFormat );
        iLabel->SetFont( LatinBold19() );
        iLabel->SetAlignment( EHCenterVCenter );
        SizeChanged();
        }
    }

// ----------------------------------------------------------------------------
// CAknExListColumnContainer::GraphicIconL()
// Appends graphics data.
// ----------------------------------------------------------------------------
//
void CAknExListColumnContainer::GraphicIconL( CArrayPtr<CGulIcon>* aIcons )
    {
    if ( aIcons )
        {
        // Appends icon according to iOutlineId.
        switch ( iOutlineId )
            {
            case EAknExListCmdOutline12:
            case EAknExListCmdOutline13:
            case EAknExListCmdOutline30T1:
            case EAknExListCmdOutline30T2:
            case EAknExListCmdOutline33:
            case EAknExListCmdOutline41T1:
            case EAknExListCmdOutline45:
            case EAknExListCmdOutline49:
            case EAknExListCmdOutline50:
            case EAknExListCmdOutline63:
            case EAknExListCmdOutline78:
                aIcons->AppendL( iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                                         EMbmAknexlistMarked_add,
                                                         EMbmAknexlistMarked_add_m ) );
                aIcons->AppendL( 
                    iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                            EMbmAknexlistGolgo3,
                                            EMbmAknexlistGolgo3m ) );
                break;
            case EAknExListCmdOutline15:
            case EAknExListCmdOutline52:
                aIcons->AppendL( iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                                         EMbmAknexlistMarked_add,
                                                         EMbmAknexlistMarked_add_m ) );
                aIcons->AppendL( 
                    iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                            EMbmAknexlistGolgo2,
                                            EMbmAknexlistGolgo2m ) );
                break;
            case EAknExListCmdOutline44:
                aIcons->AppendL( iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                                         EMbmAknexlistMarked_add,
                                                         EMbmAknexlistMarked_add_m ) );
                aIcons->AppendL( 
                    iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                            EMbmAknexlistGolgo4,
                                            EMbmAknexlistGolgo4m ) );
                aIcons->AppendL( 
                    iEikonEnv->CreateIconL( KAknExListMbmFileName,
                                            EMbmAknexlistGolgo5,
                                            EMbmAknexlistGolgo5m ) );