author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 25 May 2010 13:16:00 +0300 | |
branch | RCL_3 |
changeset 18 | 2eb3b066cc7d |
parent 0 | 71ca22bcf22a |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 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: Telephony Multimedia Service |
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* |
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*/ |
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|
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#ifndef TMS_GLOBAL_VOL_EFFECT_H |
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#define TMS_GLOBAL_VOL_EFFECT_H |
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|
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#include <tms.h> |
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#include <tmseffect.h> |
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namespace TMS { |
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// FORWARD DECLARATIONS |
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class TMSGlobalVolEffectBody; |
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class TMSEffectObserver; |
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|
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/** |
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* TMSGlobalVolEffect class |
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* |
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* This class provides volume level control in the global TMS scope. Volume |
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* level changes done by any client are adjusted accross all calls serviced |
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* by the TMS server. |
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* |
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* @lib tmsapi.lib |
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* |
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*/ |
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class TMSGlobalVolEffect : public TMSEffect |
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{ |
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public: |
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/** |
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* Destructor |
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*/ |
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IMPORT_C virtual ~TMSGlobalVolEffect(); |
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|
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/** |
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* Add client as an observer to events generated by this effect object. |
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* |
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* This function can be called at any time. It is recommended adding the |
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* observer before calling any functions on the Effect. Otherwise, the |
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* observer may miss a callback. |
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* |
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* A reference to the obsrvr is stored in the effect. EffectsEvent callback |
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* will be called when an effect event occurs. When effect is deleted, all |
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* TMSEffectObserver references are automatically released. The ownership of |
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* the obsrvr is still maintained by the client. Should the client need to |
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* delete the obsrvr before deleting the effect, it should remove the obsrvr |
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* reference from the effect by calling RemoveObserver() function. |
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* |
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* @param obsrvr |
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* Listener to be added to the effect. |
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* |
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* @param user_data |
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* Any user data passed to the function. |
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* |
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* @return |
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* TMS_RESULT_SUCCESS if the obsrvr is added to the list successfully. |
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* TMS_RESULT_ALREADY_EXIST if the obsrvr is already in the list. |
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* |
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*/ |
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IMPORT_C gint AddObserver(TMSEffectObserver& obsrvr, gpointer user_data); |
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|
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/** |
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* Remove client observer from the Effect. |
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* |
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* This function can be called at any time. |
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* |
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* @param obsrvr |
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* Listener to be removed from the effect. |
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* |
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* @return |
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* TMS_RESULT_SUCCESS if the obsrvr is successfully removed. |
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* TMS_RESULT_DOES_NOT_EXIST if trying to remove the obsrvr that has |
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* not been added to the list. |
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* |
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*/ |
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IMPORT_C gint RemoveObserver(TMSEffectObserver& obsrvr); |
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|
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/** |
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* Set global audio volume level. The volume level should be between 0 |
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* and the max value returned by GetMaxLevel(). |
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* |
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* @param level |
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* the volume level to be set. |
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* @return |
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* TMS_RESULT_SUCCESS if the operation was successful otherwise |
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* system error. |
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*/ |
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IMPORT_C gint SetLevel(const guint level); |
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/** |
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* Return current global audio volume level. |
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* |
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* @param level |
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* Volume level to be set. |
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* |
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* @return |
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* TMS_RESULT_SUCCESS if the operation was successful otherwise |
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* system error. |
0
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* |
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*/ |
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IMPORT_C gint GetLevel(guint& level); |
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|
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/** |
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* Return max volume level supported by the device. |
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* |
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* @param level |
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* Max volume level. |
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* |
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* @return |
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* TMS_RESULT_SUCCESS if the operation was successful otherwise |
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* system error. |
0
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* |
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*/ |
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IMPORT_C gint GetMaxLevel(guint& level); |
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|
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/** |
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* Return effect type. |
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* |
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* @param effecttype |
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* Type of the effect object (TMS_EFFECT_GLOBAL_VOL). |
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* |
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* @return |
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* TMS_RESULT_SUCCESS if the operation was successful otherwise |
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* system error. |
0
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* |
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*/ |
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IMPORT_C virtual gint GetType(TMSEffectType& effecttype); |
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|
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protected: |
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/** |
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* Constructor |
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*/ |
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IMPORT_C TMSGlobalVolEffect(); |
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protected: |
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TMSGlobalVolEffectBody *iBody; |
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}; |
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|
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} //namespace TMS |
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#endif //TMS_GLOBAL_VOL_EFFECT_H |