locationcentre/lcapp/src/lclistboxmodel.cpp
changeset 0 522cd55cc3d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationcentre/lcapp/src/lclistboxmodel.cpp	Tue Feb 02 00:16:03 2010 +0200
@@ -0,0 +1,184 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  List box model for the list-box used to display the Location
+*                Centre Application
+*
+*/
+
+
+// SYSTEM INCLUDES 
+
+// USER INCLUDES
+#include "lclistboxmodel.h"
+#include "lclocationappinfo.h"
+#include "lcerrors.h"
+
+// CONSTANT DEFINTION
+const TInt KLcBufferSize = 128;
+
+// ========================= MEMBER FUNCTIONS ================================
+
+// ---------------------------------------------------------------------------
+// CLcListBoxModel::CLcListBoxModel
+// ---------------------------------------------------------------------------
+//
+CLcListBoxModel::CLcListBoxModel( CLcLocationAppInfoArray*	aAppArray )
+	:iAppArray( aAppArray )
+    {
+    // C++ Default constructor. No allocations or functions which can Leave
+    // should be called from here.
+    }
+
+// ---------------------------------------------------------------------------
+// CLcListBoxModel::~CLcListBoxModel
+// ---------------------------------------------------------------------------
+//
+CLcListBoxModel::~CLcListBoxModel()
+    {
+    // C++ Destructor. Free all resources associated with this class.
+    
+    // Delete the MdcaPoint buffer
+    delete iBuffer;
+    
+    // Delete the Application information array
+    delete iAppArray;
+    }
+
+// ---------------------------------------------------------------------------
+// void CLcListBoxModel::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CLcListBoxModel::ConstructL()
+    {
+    // Create the Buffer for packing the MdcaPoint
+    iBuffer = HBufC16::NewL( KLcBufferSize );
+    }
+
+// ---------------------------------------------------------------------------
+// CLcListBoxModel* CLcListBoxModel::NewL
+// ---------------------------------------------------------------------------
+//
+CLcListBoxModel* CLcListBoxModel::NewL( CLcLocationAppInfoArray*	aAppArray )
+    {
+    CLcListBoxModel* self = new ( ELeave ) CLcListBoxModel( aAppArray );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// void CLcListBoxModel::UpdateModel
+// ---------------------------------------------------------------------------
+//
+void CLcListBoxModel::UpdateModel( CLcLocationAppInfoArray*	aAppArray )
+	{
+	// The model contents have changed. We have to remove the old App array
+	// and assign the new one.
+	
+	delete iAppArray;
+	
+	// Now assign the new one
+	iAppArray = aAppArray;
+	}
+
+// ---------------------------------------------------------------------------
+// CLcLocationAppInfoArray& CLcListBoxModel::AppArray
+// ---------------------------------------------------------------------------
+// 
+CLcLocationAppInfoArray& CLcListBoxModel::AppArray()
+	{
+    // If the Array is not set then there is a programming error from which
+    // we cannot recover. So Panic the Application
+    if( !iAppArray )
+        {
+        User::Panic( KLcPanicCategory, ELcInvalidIndex );
+        }
+	return *iAppArray;
+	}
+
+// ---------------------------------------------------------------------------
+// TInt CLcListBoxModel::AppInfoId
+// ---------------------------------------------------------------------------
+//
+TPtrC CLcListBoxModel::AppInfoId( TInt aIndex ) const
+	{
+    // Check if the element requested is out of array bounds
+    if( aIndex < 0 || aIndex >= iAppArray->Count())
+        {
+        User::Panic( KLcPanicCategory, ELcInvalidIndex );
+        }
+        	
+	return (*iAppArray)[ aIndex ].Id();
+	}
+	           
+// ---------------------------------------------------------------------------
+// TInt CLcListBoxModel::MdcaCount
+// ---------------------------------------------------------------------------
+//
+TInt CLcListBoxModel::MdcaCount() const
+    {
+    if ( iAppArray )
+    	{
+    	return iAppArray->Count();    	
+    	}
+	else
+		{
+		return 0;
+		}    	
+    }
+    
+// ---------------------------------------------------------------------------
+// TPtrC16 CLcListBoxModel::MdcaPoint
+// ---------------------------------------------------------------------------
+//
+TPtrC16 CLcListBoxModel::MdcaPoint(  TInt aIndex  ) const
+    {
+    // If the Array is not set then there is a programming error from which
+    // we cannot recover. So Panic the Application
+    if( !iAppArray )
+        {
+        User::Panic( KLcPanicCategory, ELcInvalidIndex );
+        }
+            
+    // Pack the contents into the Buffer. We dont have to re-allocate the buffer
+    // everytime because the length of the name field is restricted in the
+    // Location Centre Registration API
+		    
+    // Tabulator Defintion
+    _LIT( KTab, "\t" );
+    
+    // Create formatted item string.
+    // list_single_large_pane:
+    // list item string format: "1\tTextLabel\t0\t0"
+    // where 0 is an index to icon array
+	TPtr16	buf( iBuffer->Des());
+	buf.Zero();
+	
+	// Append the Icon Index
+	buf.AppendNum( aIndex );
+	
+	// Append the Tab Key
+	buf.Append( KTab );
+	
+	// Append the Application Information
+	buf.Append( (*iAppArray)[aIndex].Name());
+	
+	// Append the Tab Key
+	buf.Append( KTab );
+	
+	// Append the Tab Key
+	buf.Append( KTab );   
+    return buf;
+    }