author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:31:27 +0100 | |
branch | RCL_3 |
changeset 37 | 870918037e16 |
parent 0 | 522cd55cc3d7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: LandmarksUi Content File - Selector functionality common to both application (view-based) and |
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common ui components (dialog-based). |
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* |
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*/ |
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#ifndef CLMKSELECTORIMPLBASE_H |
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#define CLMKSELECTORIMPLBASE_H |
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// INCLUDES |
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#include "MLmkListProviderObserver.h" |
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#include <EPos_Landmarks.h> // Lm typedefs, constants etc. |
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// FORWARD DECLARATIONS |
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class CPosLandmarkDatabase; |
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class CLmkListProviderBase; |
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class CLmkSelectorIconMgr; |
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class CAknIconArray; |
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class CLmkUiUtils; |
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class MLmkListMemento; |
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class CEikListBox; |
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class CEikonEnv; |
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// CLASS DECLARATION |
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/** |
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* Selector functionality common to both application (view-based) and |
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* common ui components (dialog-based). |
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* |
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*/ |
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class CLmkSelectorImplBase |
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: public CBase, |
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public MLmkListProviderObserver |
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{ |
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public: // Constructors and destructor |
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/** |
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* Destructor. |
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*/ |
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~CLmkSelectorImplBase(); |
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public: // New functions |
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/** |
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* Sets memento to be used by this class. Memento's |
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* lifetime must be at least as long as this class's lifetime. |
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* @param aMemento |
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*/ |
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IMPORT_C void SetMemento( MLmkListMemento& aMemento ); |
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/** |
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* Creates a memento (but does not set it with SetMemento()). |
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* @return created memento, ownership is transferred |
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*/ |
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virtual MLmkListMemento* MementoL() = 0; |
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/** |
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* Template method implemented by the subclass and called by |
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* the base class. |
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*/ |
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virtual void SetupListProviderL() = 0; |
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/** |
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* Template method implemented by the subclass and called by |
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* the base class. Needed since composite selector doesn't |
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* have own list provider but it utilizes other providers. |
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* @return CLmkListProviderBase reference |
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*/ |
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virtual const CLmkListProviderBase& ListProvider() const = 0; |
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/** |
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* Return number of visible items |
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* @return TInt |
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*/ |
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virtual TInt ListVisibleItemCount() = 0; |
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/** |
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* Return number of marked items |
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* @return TInt |
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*/ |
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virtual TInt ListMarkedItemCountL() = 0; |
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protected: // New functions |
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/** |
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* Helper method which creates icon array and icon manager, sets |
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* default icons and gives icon manager reference to list provider. |
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* @return created icon array, left in the cleanup stack |
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*/ |
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CAknIconArray* SetupIconMgrLC(); |
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/** |
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* Helper method for storing listbox state. |
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* @param aListbox |
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* @param aProvider |
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* @param aFiltered |
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*/ |
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void Store( const CEikListBox& aListBox, |
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const CLmkListProviderBase& aProvider, |
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TBool aFiltered ); |
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|
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/** |
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* Helper method for restoring listbox state |
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* @param aListbox |
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* @param aProvider |
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* @param aFiltered |
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*/ |
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void Restore( const CEikListBox& aListBox, |
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const CLmkListProviderBase& aProvider, |
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TBool aFiltered ); |
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|
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protected: // From MLmkListProviderObserver |
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void HandleListProviderEvent( TLmkListProviderEventType aEvent ); |
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|
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protected: // Constructors and destructor |
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/** |
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* C++ default constructor. |
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* @param aDb |
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* @return newly instantiated object |
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*/ |
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CLmkSelectorImplBase( CPosLandmarkDatabase& aDb ); |
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|
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/** |
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* By default Symbian 2nd phase constructor is private. |
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*/ |
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void BaseConstructL(); |
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|
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protected: // Data |
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|
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///Ref: |
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CPosLandmarkDatabase& iDb; |
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|
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///Ref: |
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MLmkListMemento* iMemento; |
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///Own: |
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CLmkListProviderBase* iListProvider; |
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|
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///Own: |
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CLmkSelectorIconMgr* iIconMgr; |
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///Own: |
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CLmkUiUtils* iLmkUiUtils; |
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private: // Internal classes |
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|
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// This struct-like class is used for postponing memento. |
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// It does not own any heap data. |
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class TLmkRestoreData |
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{ |
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public: // Constructor: |
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TLmkRestoreData(); |
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|
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public: // Public data: |
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TBool iRestoreRequested; |
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const CEikListBox* iListBox; |
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const CLmkListProviderBase* iProvider; |
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TBool iFiltered; |
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}; |
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|
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private: // Data |
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// These should not be used by subclasses, their content is |
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// guaranteed to be correct only within this class. |
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|
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///Latest provider event recorded by this class |
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TLmkListProviderEventType iSelectorImplBaseLatestListEvent; |
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|
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///Contains information for possible postponed memento operation |
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TLmkRestoreData iRestoreData; |
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|
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protected: |
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// Ref |
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CEikonEnv* iEnv; |
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}; |
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#endif // CLMKSELECTORIMPLBASE_H |
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// End of File |