phonebookui/Phonebook2/UIControls/inc/Pbk2ImageCommands.h
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:29:52 +0100
branchRCL_3
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parent 0 e686773b3f54
permissions -rw-r--r--
Revert incorrect RCL_3 drop: Revision: 201033 Kit: 201035
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/*
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* Copyright (c) 2005-2007 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:  Phonebook 2 ringing commands.
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*
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*/
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#ifndef PBK2IMAGECOMMANDS_H
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#define PBK2IMAGECOMMANDS_H
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// FORWARD DECLARATIONS
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class MPbk2BaseCommand;
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class MVPbkStoreContact;
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class MVPbkStoreContactField;
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class MVPbkFieldType;
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class MPbk2ImageFieldObserver;
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/**
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 * Phonebook 2 image commands are used to change contact image and thumbnail
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 * fields and operate on a locked store contact.
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 * Usually image field contains the filename of an original image and thumbnail field
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 * contains its scaled down binary version. It's possible that a contact has 
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 * only thumbnail field, e.g. when it was imported as vCard. 
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 * 
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 * All commands that return a MPbk2BaseCommand* handle may run asynchronously.
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 * The handle should be deleted to cancel the running command.
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 * 
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 * NOTE: Some command functions may return NULL, it is a valid value and means
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 * that command run synchronously. 
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 */
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class Pbk2ImageCommands
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    {
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    public:
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    	/**
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         * Assigns an image to a contact.
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         * 
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         * Runs select image dialog and assign it to the contact.
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         *
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         * @param aContact		Locked store contact.
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         * @return  A command handle.
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         */    	
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    	static MPbk2BaseCommand* SetImageL(MVPbkStoreContact* aContact,MPbk2ImageFieldObserver* aObserver);
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    	/**
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         * Displays image via external image viewer.
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         *
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         * @param aContact		Locked store contact.
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         * @return  A command handle.
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         */    	
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    	static MPbk2BaseCommand* ViewImageL(MVPbkStoreContact* aContact);
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        /**
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         * Removes an image.
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         * 
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         * @param aContact		Locked store contact.
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         * 
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         * @return  A command handle.
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         */    	
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    	static MPbk2BaseCommand* RemoveImageL(MVPbkStoreContact* aContact);
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        /**
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         * Returns ETrue if aField is image field.
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         *
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         * @param aField		Store contact field.
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         * 
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         * @return  ETrue if aField is image field, EFalse otherwise
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         */    	
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    	static TBool IsImageFieldL(const MVPbkStoreContactField& aField);
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        /**
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         * Returns ETrue if aField is thumbnail field.
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         *
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         * @param aField		Store contact field.
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         * 
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         * @return  ETrue if aField is thumbnail field, EFalse otherwise
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         */    	
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    	static TBool IsThumbnailFieldL(const MVPbkStoreContactField& aField);
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        /**
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         * Returns ETrue image field points to a valid ringtone file.
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         *
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         * @param aField		Store contact field.
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         * 
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         * @return  ETrue if aField contains a valid ringtone filed, EFalse otherwise
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         */    	
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    	static TBool IsImageFieldValidL(const MVPbkStoreContactField& aField);
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    };
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#endif // PBK2IMAGECOMMANDS_H
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// End of File