localconnectivityservice/generichid/src/hidreporttranslator.cpp
branchRCL_3
changeset 19 0aa8cc770c8a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/generichid/src/hidreporttranslator.cpp	Tue Aug 31 16:03:15 2010 +0300
@@ -0,0 +1,170 @@
+/*
+* Copyright (c) 2004-2007 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:  Report base class implementation
+*
+*/
+
+
+#include <e32std.h>
+
+#include "hidtranslate.h"
+#include "hidreportroot.h"
+#include "hidinterfaces.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TReportTranslator::TReportTranslator(
+    const TDesC8& aData,
+    const CField *aField)
+    : iData(aData), iField(aField)
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// GetValue()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::GetValue(TInt& aValue, TInt aUsageId,
+    TInt aControlOffset /*= 0*/) const
+    {
+    TInt usageIndex = 0;
+
+    if ( iField && TReportUtils::GetIndexOfUsage(iField, aUsageId, usageIndex) )
+        {
+        if ( iField->IsArray() )
+            {
+            // Convert usage ID to logical value
+            TInt logicalValue = usageIndex + iField->LogicalMin();
+
+            // Find logical value in the array
+            for ( TInt i = 0; i < iField->Count(); i++ )
+                {
+                TInt value = 0;
+                TInt error = TReportUtils::ReadData(iData, iField, i, value);
+
+                if ( KErrNone != error )
+                    {
+                    return error;
+                    }
+
+                if ( value == logicalValue )
+                    {
+                    aValue = ETrue;
+                    return KErrNone;
+                    }
+                }
+
+            aValue = EFalse;
+            return KErrNone;
+            }
+        else
+            {
+            return TReportUtils::ReadData(iData, iField, usageIndex + aControlOffset, aValue);
+            }
+        }
+
+    return KErrUsageNotFound;
+    }
+
+// ---------------------------------------------------------------------------
+// ValueL()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::ValueL(TInt aUsageId,
+    TInt aControlOffset /*= 0*/) const
+    {
+    TInt value = 0;
+
+    User::LeaveIfError(GetValue(value, aUsageId, aControlOffset));
+
+    return value;
+    }
+
+// ---------------------------------------------------------------------------
+// GetUsageId()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::GetUsageId(TInt& aUsageId, TInt aIndex) const
+    {
+    TInt logicalValue = 0;
+    TInt error = KErrNoMemory;
+
+    if ( iField )
+        {
+        error = TReportUtils::ReadData(iData, iField, aIndex, logicalValue);
+
+        if ( KErrNone == error )
+            {
+            if ( iField->IsArray() )
+                {
+                // The logical value is a usage index
+                aUsageId = TReportUtils::UsageAtIndex(iField, logicalValue -
+                    iField->LogicalMin());
+                }
+            else
+                {
+                // Treat the logical value as an on/off control for the usage
+                aUsageId = ( logicalValue ) ? TReportUtils::UsageAtIndex(iField, 
+                    aIndex) : 0;
+                }
+            }
+        }
+
+    return error;
+    }
+
+// ---------------------------------------------------------------------------
+// GetUsageId()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::UsageIdL(TInt aIndex) const
+    {
+    TInt usageId = 0;
+
+    User::LeaveIfError(GetUsageId(usageId, aIndex));
+
+    return usageId;
+    }
+
+// ---------------------------------------------------------------------------
+// RawValueL()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::RawValueL(TInt aIndex) const
+    {
+    TInt value = 0;
+    User::LeaveIfNull(const_cast<CField*>(iField));
+    User::LeaveIfError(TReportUtils::ReadData(iData, iField, aIndex, value));
+    return value;
+    }
+
+// ---------------------------------------------------------------------------
+// Count()
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt TReportTranslator::Count() const
+    {
+    TInt count = 0;
+
+    if (iField)
+        {
+        count = iField->Count();
+        }
+
+    return count;
+    }