uifw/AvKon/src/aknsignaldataobserver.cpp
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     1 /*
       
     2 * Copyright (c) 2006-2006 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Updates the signal level control in status pane. 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include "aknsignaldataobserver.h"
       
    21 #include "aknstatuspanedata.h"
       
    22 #include "AknSignal.h"
       
    23 #include "AknSignalStrength.h"
       
    24 
       
    25 #include "aknstatuspanedatasubscriber.h"
       
    26 #include <eikspane.h>
       
    27 #include <avkon.hrh>
       
    28 #include <eikapp.h>
       
    29 #include <eikappui.h>
       
    30 
       
    31 
       
    32 // ============================ MEMBER FUNCTIONS ===============================
       
    33 
       
    34 // -----------------------------------------------------------------------------
       
    35 // CAknSignalDataObserver::CAknSignalDataObserver
       
    36 // C++ default constructor can NOT contain any code, that
       
    37 // might leave.
       
    38 // -----------------------------------------------------------------------------
       
    39 //
       
    40 CAknSignalDataObserver::CAknSignalDataObserver(CAknSignalPane* aSignalPane)
       
    41 	{
       
    42 	iSignalPane = aSignalPane;
       
    43 	iSignalPane->MopGetObject(iDataSubscriber);
       
    44 	if (iDataSubscriber)
       
    45 		{
       
    46 		iDataSubscriber->AddObserver(this); 
       
    47 		}
       
    48     }
       
    49 
       
    50 
       
    51 // -----------------------------------------------------------------------------
       
    52 // Destructor
       
    53 // -----------------------------------------------------------------------------
       
    54 //
       
    55 CAknSignalDataObserver::~CAknSignalDataObserver()
       
    56 	{
       
    57 	if (iDataSubscriber)
       
    58 		{
       
    59 		iDataSubscriber->RemoveObserver(this); 
       
    60 		}
       
    61     }
       
    62 
       
    63 // -----------------------------------------------------------------------------
       
    64 // CAknSignalDataObserver::HandleUpdateL
       
    65 // Updates UI control.    
       
    66 // -----------------------------------------------------------------------------
       
    67 //
       
    68 void CAknSignalDataObserver::HandleUpdateL(const TAknStatusPaneStateData& aData)
       
    69 	{
       
    70 	if (!iDataSubscriber)
       
    71 		return;	
       
    72 	
       
    73   	TAknSignalState state = aData.iSignalState;	
       
    74 
       
    75 	// If this pane is not in current layout, no update. Update happens 
       
    76 	// when status pane layout is changed.
       
    77     CEikStatusPaneBase* statusPane = CEikStatusPaneBase::Current();
       
    78    	if (!statusPane || 
       
    79    		!statusPane->PaneCapabilities(TUid::Uid(EEikStatusPaneUidSignal)).IsInCurrentLayout())
       
    80    		{
       
    81 		return;
       
    82    		}
       
    83 	
       
    84    	// Animation is not shown in the background unless update level has been 
       
    85    	// set above ERefreshLevelMedium.
       
    86     TBool updateAnimation = 
       
    87     	(!iDataSubscriber->IsBackground() || 
       
    88     	 iDataSubscriber->RefreshLevel() > CAknStatusPaneDataSubscriber::ERefreshLevelMedium);
       
    89 	
       
    90 	// Update only if changed to avoid unncessary redraws etc.
       
    91 	TBool strengthChanged = state.iSignalStrength != iSignalPane->SignalLevel();	
       
    92 	TBool iconChanged = state.iIconState != iSignalPane->SignalState();
       
    93 	
       
    94 	// Set signal strenght (this handles also Offline status)
       
    95 	if (strengthChanged)
       
    96 		iSignalPane->SetSignalLevel(state.iSignalStrength);
       
    97 	
       
    98 	// Set signal icon
       
    99 	if (iconChanged)
       
   100 		{
       
   101 		if (state.iIconState >= EAknSignalGprsIndicatorOff &&
       
   102 		    state.iIconState < EAknSignalCommonPacketDataIndicatorOff)
       
   103 		    {
       
   104 		    // GPRS
       
   105 		    iSignalPane->ShowGprsIcon(state.iIconState);
       
   106 		    }
       
   107 		else if (state.iIconState >= EAknSignalCommonPacketDataIndicatorOff &&
       
   108 		    state.iIconState < EAknSignalWcdmaIndicatorOff)
       
   109 			{
       
   110 			// Common packet data
       
   111 		    iSignalPane->ShowCommonPacketDataIcon(state.iIconState);				
       
   112 			}    
       
   113 		else if (state.iIconState >= EAknSignalWcdmaIndicatorOff &&
       
   114 		    state.iIconState < EAknSignalCdmaIndicatorOff)
       
   115 			{
       
   116 			// WCDMA
       
   117 		    iSignalPane->ShowWcdmaIcon(state.iIconState);
       
   118 			}    
       
   119 		else if (state.iIconState >= EAknSignalCdmaIndicatorOff &&
       
   120 		    state.iIconState < EAknSignalEdgeIndicatorOff)
       
   121 			{
       
   122 			// CDMA
       
   123 		    iSignalPane->ShowCdmaIcon(state.iIconState);
       
   124 			}    
       
   125 		else if (state.iIconState >= EAknSignalEdgeIndicatorOff &&
       
   126 		    state.iIconState <= EAknSignalEdgeIndicatorMultipdp)
       
   127 			{
       
   128 			// EDGE
       
   129 		    iSignalPane->ShowEdgeIcon(state.iIconState);
       
   130 			}    			
       
   131 		else if (state.iIconState >= EAknSignalHsdpaIndicatorOff &&
       
   132 		    state.iIconState <= EAknSignalHsdpaIndicatorMultipdp)
       
   133 			{
       
   134 			// HSPDA
       
   135 		    iSignalPane->ShowHsdpaIcon(state.iIconState);
       
   136 			}    			
       
   137 		}
       
   138 
       
   139 	if (!updateAnimation)
       
   140 		{
       
   141 		iSignalPane->DisableAnimation();
       
   142 		}	
       
   143 		
       
   144 	if (iconChanged || strengthChanged)
       
   145 		iSignalPane->DrawDeferred();			
       
   146 }		
       
   147 		
       
   148 
       
   149 //  End of File