diff -r 1fc85118c3ae -r 870918037e16 landmarksui/uicontrols/src/CLmkDistanceEditor.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/landmarksui/uicontrols/src/CLmkDistanceEditor.cpp	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,355 @@
+/*
+* Copyright (c) 2002 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:    LandmarksUi Content File -
+*
+*/
+
+
+
+
+
+
+
+
+// INCLUDE FILES
+#include <eikmfne.h>
+
+#include <eikenv.h>
+#include <stringloader.h>
+#include <e32math.h>
+#include <AknUtils.h>
+
+#include <LmkUi.rsg>
+#include "landmarks.hrh"
+#include "LmkConsts.h"
+
+#include "CLmkMfneFloat.h"
+#include "CLmkDistanceEditor.h"
+#include <AknBidiTextUtils.h>
+
+// CONSTANTS
+/// Unnamed namespace for local definitions
+namespace {
+
+const TInt KKeyToMatchEmptyUnits = 0;
+
+const TInt KKeyToMatchMeters = 109;
+const TInt KKeyToMatchKilometers = 75;
+const TInt KKeyToMatchFeet = 87;
+const TInt KKeyToMatchMiles = 77;
+
+const TInt KNumMetricUnitSymbols = 2;
+const TInt KNumImperialUnitSymbols = 2;
+
+const TInt KMaxNumSignificantDigits = 7;  // DDDDD.DD
+const TInt KMaxNumDecimalDigits = 2;
+const TInt KNumFields = 2; // float, Units
+}  // namespace
+
+// ============================ MEMBER FUNCTIONS ==============================
+
+// ----------------------------------------------------------------------------
+// CLmkDistanceEditor::CLmkDistanceEditor
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ----------------------------------------------------------------------------
+//
+CLmkDistanceEditor::CLmkDistanceEditor()
+    {
+    }
+
+// ----------------------------------------------------------------------------
+// CLmkDistanceEditor::ConstructL
+// Symbian 2nd phase constructor can leave.
+// ----------------------------------------------------------------------------
+//
+void CLmkDistanceEditor::ConstructL(
+    TReal32 aMinimumValue,
+    TReal32 aMaximumValue,
+    TReal32 aInitialValue)
+    {
+    iMinimumValue = aMinimumValue;
+    iMaximumValue = aMaximumValue;
+
+    // create float field
+    BaseConstructL(KNumFields);
+
+    if (!AknLayoutUtils::LayoutMirrored())
+        {
+        ConstructValueFieldL(KMaxNumSignificantDigits, KMaxNumDecimalDigits);
+        ConstructUnitFieldL();
+        }
+    else
+        {
+        ConstructUnitFieldL();
+        ConstructValueFieldL(KMaxNumSignificantDigits, KMaxNumDecimalDigits);
+        }
+
+    // Init value
+    SetUnit(DefaultUnit());
+    UpdateValueLimits();
+    SetNumber(aInitialValue);
+    ShowUnits(!Math::IsNaN(aInitialValue));
+    }
+
+// ----------------------------------------------------------------------------
+// CLmkDistanceEditor::ConstructUnitFieldL
+// ----------------------------------------------------------------------------
+//
+void CLmkDistanceEditor::ConstructUnitFieldL()
+    {
+    TLocale locale;
+
+    //create distance types
+    TInt numUnitsymbols = KNumMetricUnitSymbols + 1; // +empty Units
+    if (locale.UnitsGeneral() == EUnitsImperial)
+        {
+        numUnitsymbols += KNumImperialUnitSymbols;
+        }
+
+    iUnitsField = CEikMfneSymbol::NewL(numUnitsymbols);
+
+    // create Units field
+    HBufC* type = NULL;
+
+    // add empty Units
+    type = HBufC::NewLC(1);
+    iUnitsField->AddSymbolicItem(
+        CEikMfneSymbol::CItem::NewL(EUnitNone, KKeyToMatchEmptyUnits, type ),
+        ETrue);
+    CleanupStack::Pop(type);
+
+    // add metric Units
+    type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_M, iCoeEnv );
+    iUnitsField->AddSymbolicItem(
+        CEikMfneSymbol::CItem::NewL( EUnitMeters, KKeyToMatchMeters, type ),
+        EFalse);
+    CleanupStack::Pop(type);
+
+    type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_KM, iCoeEnv );
+    iUnitsField->AddSymbolicItem(
+        CEikMfneSymbol::CItem::NewL( EUnitKilometers, KKeyToMatchKilometers, type ),
+        EFalse);
+    CleanupStack::Pop(type);
+
+    // Add imperial Units for those who use them
+    if ( locale.UnitsGeneral() == EUnitsImperial )
+        {
+        type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_FT, iCoeEnv );
+        iUnitsField->AddSymbolicItem(
+            CEikMfneSymbol::CItem::NewL( EUnitFeet, KKeyToMatchFeet, type ),
+            EFalse);
+        CleanupStack::Pop(type);
+
+        type = StringLoader::LoadLC( R_LMK_DISTANCE_EDITOR_TYPE_MI, iCoeEnv );
+        iUnitsField->AddSymbolicItem(
+            CEikMfneSymbol::CItem::NewL( EUnitMiles, KKeyToMatchMiles, type ),
+            EFalse);
+        CleanupStack::Pop(type);
+        }
+
+    AddField(iUnitsField);
+    }
+
+// ----------------------------------------------------------------------------
+// CLmkDistanceEditor::~CLmkDistanceEditor
+// ----------------------------------------------------------------------------
+//
+CLmkDistanceEditor::~CLmkDistanceEditor()
+    {
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::Number
+// ----------------------------------------------------
+//
+TReal CLmkDistanceEditor::Number() const
+    {
+    return UnitsToMeters(CLmkFloatEditor::Number(), Unit());
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::SetNumber
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::SetNumber(TReal aNumber)
+    {
+    ShowUnits(!Math::IsNaN(aNumber));
+    CLmkFloatEditor::SetNumber(MetersToUnits(aNumber, Unit()));
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::SetUnit
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::SetUnit(TDistanceUnit aUnitId)
+    {
+    iUnitsField->SetCurrentSymbolicItemToId(aUnitId);
+    UpdateValueLimits();
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::Unit
+// ----------------------------------------------------
+//
+CLmkDistanceEditor::TDistanceUnit CLmkDistanceEditor::Unit() const
+    {
+    return (TDistanceUnit) iUnitsField->IdOfCurrentSymbolicItem();
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::DefaultUnit
+// ----------------------------------------------------
+//
+CLmkDistanceEditor::TDistanceUnit CLmkDistanceEditor::DefaultUnit() const
+    {
+    return EUnitMeters;
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::UpdateValueLimits
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::UpdateValueLimits()
+    {
+    if (Unit() != EUnitNone)
+        {
+        SetLimits(
+            MetersToUnits(iMinimumValue, Unit()),
+            MetersToUnits(iMaximumValue, Unit()));
+        }
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::MetersToUnits
+// ----------------------------------------------------
+//
+TReal32 CLmkDistanceEditor::MetersToUnits(
+    TReal32 aMeters,
+    TDistanceUnit aToUnits) const
+    {
+    TRealX nan;
+    nan.SetNaN();
+
+    if (Math::IsNaN(aMeters))
+        {
+        return nan;
+        }
+
+    switch (aToUnits)
+        {
+        case EUnitMeters:
+            return aMeters;
+        case EUnitKilometers:
+            return aMeters / KKilometerToMeter;
+        case EUnitMiles:
+            return aMeters / KMileToMeter;
+        case EUnitFeet:
+            return aMeters * KMetreToFoot;
+        default:
+            return nan;
+        }
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::UnitsToMeters
+// ----------------------------------------------------
+//
+TReal32 CLmkDistanceEditor::UnitsToMeters(
+    TReal32 aValue,
+    TDistanceUnit aFromUnits) const
+    {
+    TRealX nan;
+    nan.SetNaN();
+
+    if (Math::IsNaN(aValue))
+        {
+        return nan;
+        }
+
+    switch (aFromUnits)
+        {
+        case EUnitMeters:
+            return aValue;
+        case EUnitKilometers:
+            return aValue * KKilometerToMeter;
+        case EUnitMiles:
+            return aValue * KMileToMeter;
+        case EUnitFeet:
+            return aValue / KMetreToFoot;
+        default:
+            return nan;
+        }
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::ShowUnits
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::ShowUnits(TBool aVisible)
+    {
+    if (aVisible)
+        {
+        if (Unit() == EUnitNone)
+            {
+            SetUnit(DefaultUnit());
+            }
+        }
+    else
+        {
+        SetUnit(EUnitNone);
+        }
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::HandleEnter
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::HandleEnter()
+    {
+    ShowUnits(ETrue);
+    CLmkFloatEditor::HandleEnter();
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::HandleExit
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::HandleExit()
+    {
+    ShowUnits(!IsNan());
+    CLmkFloatEditor::HandleExit();
+    }
+
+// ----------------------------------------------------
+// CLmkDistanceEditor::HandleCustomFieldChanged
+// ----------------------------------------------------
+//
+void CLmkDistanceEditor::HandleCustomFieldChanged(TInt aFieldIndex)
+    {
+    if (Field(aFieldIndex) == iUnitsField)
+        {
+        if (Unit() == EUnitNone)
+            {
+            // cycle from empty unit
+            SetUnit(DefaultUnit());
+            }
+        else
+            {
+            UpdateValueLimits();
+            }
+        }
+    }
+
+//  End of File