aknexlistbasecontainer.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

/*  Copyright (c) 2005, Nokia. All rights reserved */

// INCLUDE FILES
#include <eikclbd.h>
#include <aknlists.h>
#include <barsread.h>
#include <akniconarray.h>
#include <aknexlist.rsg>
#include <aknexlist.mbg>
#include <AknQueryDialog.h>
#include "AknExListBaseContainer.h"
#include "AknExListConst.h" // For name of bitmap file

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

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::CAknExListBaseContainer()
// Default constructor.
// ----------------------------------------------------------------------------
//
CAknExListBaseContainer::CAknExListBaseContainer()
    {
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::~CAknExListBaseContainer()
// Destructor.
// ----------------------------------------------------------------------------
//
CAknExListBaseContainer::~CAknExListBaseContainer()
    {
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetListBoxFromResourceL()
// Sets listbox from resource using ConstructFromResourceL() of
// CEikColumnListBox class.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetListBoxFromResourceL( 
    CEikColumnListBox* aListBox, const TInt aResourceId )
    {
    if ( aListBox && aResourceId )
        {
        aListBox->SetContainerWindowL( *this );

        TResourceReader reader;
        CEikonEnv::Static()->CreateResourceReaderLC( reader, aResourceId );
        aListBox->ConstructFromResourceL( reader );
        CleanupStack::PopAndDestroy(); // resource stuffs.

        // Creates scrollbar.
        CreateScrollbarL( aListBox );
        }
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetListBoxFromResourceL()
// Sets listbox from resource using ConstructFromResourceL() of
// CEikFormattedCellListBox class.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetListBoxFromResourceL( 
    CEikFormattedCellListBox* aListBox,
    const TInt aResourceId )
    {
    if ( aListBox && aResourceId )
        {
        aListBox->SetContainerWindowL( *this );

        TResourceReader reader;
        CEikonEnv::Static()->CreateResourceReaderLC( reader, aResourceId );
        aListBox->ConstructFromResourceL( reader );
        CleanupStack::PopAndDestroy(); // resource stuffs.

        // Creates scrollbar.
        CreateScrollbarL( aListBox );
        }
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetListBoxFromInnerDescriptionL()
// Sets listbox from inner description using ConstructL() of CEikColumnListBox
// class.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetListBoxFromInnerDescriptionL( 
    CEikColumnListBox* aListBox,
    const TInt aFlags,
    CDesCArray* textArray )
    {
    if ( aListBox )
        {
        // Constructs listbox.
        aListBox->ConstructL( this, aFlags );

        if ( textArray )
            {
            // Sets list item from resource.
            aListBox->Model()->SetItemTextArray( textArray );
            aListBox->Model()->SetOwnershipType( ELbmOwnsItemArray );
            }

        // Creates scrollbar.
        CreateScrollbarL( aListBox );
        }
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetListBoxFromInnerDescriptionL()
// Sets listbox from inner description using ConstructL() of
// CEikFormattedCellListBox class.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetListBoxFromInnerDescriptionL( 
    CEikFormattedCellListBox* aListBox,
    const TInt aFlags,
    CDesCArray* textArray )
    {
    if ( aListBox )
        {
        // Constructs listbox.
        aListBox->ConstructL( this, aFlags );

        if ( textArray )
            {
            // Sets list item from resource.
            aListBox->Model()->SetItemTextArray( textArray );
            aListBox->Model()->SetOwnershipType( ELbmOwnsItemArray );
            }

        // Creates scrollbar.
        CreateScrollbarL( aListBox );
        }
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::CreateFindBoxL()
// Creates FindBox and returns it's pointer.
// ----------------------------------------------------------------------------
//
CAknSearchField* CAknExListBaseContainer::CreateFindBoxL( 
    CEikListBox* aListBox,
    CTextListBoxModel* aModel,
    CAknSearchField::TSearchFieldStyle aStyle )
    {
    CAknSearchField* findbox = NULL;

    if ( aListBox && aModel )
        {
        // Gets pointer of CAknFilteredTextListBoxModel.
        CAknFilteredTextListBoxModel* model =
                static_cast<CAknFilteredTextListBoxModel*>( aModel );
        // Creates FindBox.
        findbox = CAknSearchField::NewL( *this,
                                         aStyle,
                                         NULL,
                                         KAknExListFindBoxTextLength );
        CleanupStack::PushL( findbox );
        // Creates CAknListBoxFilterItems class.
        model->CreateFilterL( aListBox, findbox );
        //Filter can get by model->Filter();
        CleanupStack::Pop( findbox ); // findbox
        }

    return findbox;
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::AutoNumberingL()
// Automatic numbering of list item.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::AutoNumberingL( 
    CEikTextListBox* aListBox )
    {
    // Change it because CListBoxNumbers will be removed on Sw 2.10. 
    // Source is replaced to the copy of Sw 2.05's CListBoxNumbers::UpdateL()
    TInt itemCount( aListBox->Model()->NumberOfItems() );
    MDesCArray* itemList = aListBox->Model()->ItemTextArray();
    CDesCArray* itemArray = static_cast<CDesCArray*>( itemList );
    for ( TInt i( 0 ); i < itemCount; i++ )
        {
        TPtrC item = ( *itemArray )[i];
        TInt pos = item.Locate( KAknExListTab );
        TBuf<256> data; 
        data.Num( i + 1 );
        data += item.Right( item.Length() - pos );
        itemArray->Delete( i );
        itemArray->InsertL( i, data );
        }   
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetGraphicIconL()
// Sets graphic icon using listbox as CEikColumnListBox.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetGraphicIconL( CEikColumnListBox* aListBox )
    {
    if ( aListBox )
        {
        // Creates gul icon.
        CArrayPtr<CGulIcon>* icons =
            new ( ELeave ) CAknIconArray( 
                KAknExListGraphicGulIconIndex );

        CleanupStack::PushL( icons );

        GraphicIconL( icons ); // Appends graphic data.

        // Sets graphics as ListBox icon.
        aListBox->ItemDrawer()->ColumnData()->SetIconArray( icons );

        CleanupStack::Pop();

        }
    }

// ----------------------------------------------------------------------------
// CAknExListBaseContainer::SetGraphicIconL()
// Sets graphic icon using listbox as CEikFormattedCellListBox.
// ----------------------------------------------------------------------------
//
void CAknExListBaseContainer::SetGraphicIconL( 
    CEikFormattedCellListBox* aListBox )
    {
    if ( aListBox )
        {
        // Creates gul icon.
        CArrayPtr<CGulIcon>* icons =
            new ( ELeave ) CAknIconArray( 
                KAknExListGraphicGulIconIndex );

        CleanupStack::PushL( icons );

        GraphicIconL( icons ); // Appends graphic data.

        // Sets graphics as ListBox icon.
        aListBox->ItemDrawer()->FormattedCellData()->SetIconArrayL( icons );
        // Drawing position of icon is left.
        //aListBox->ItemDrawer()->FormattedCellData()->SetSubCellAlignmentL( 
        //     2, CGraphicsContext::ELeft );

        CleanupStack::Pop();
        }
    }


// ---------------------------------------------------------------------------
// CAknExListBaseContainer::SetEmptyListL()