diff -r 000000000000 -r 8466d47a6819 emailuis/uicomponents/src/fsalfscrollbarlayout.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/uicomponents/src/fsalfscrollbarlayout.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,449 @@
+/*
+* 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: This file implements class CFsAlfScrollbarLayout.
+*
+*/
+
+
+//<cmail> SF
+#include "emailtrace.h"
+#include <alf/alfcontrol.h>
+#include <alf/alfanchorlayout.h>
+#include <alf/alfenv.h>
+#include <alf/alfimagebrush.h>
+#include <alf/alfbrusharray.h>
+#include <alf/alfconstants.h>
+#include <alf/alfgencomponent.h>
+#include <alf/alfconstants.h>
+//</cmail>
+
+#include "fsscrollbarpluginconstants.h"
+#include "fsalfscrollbarlayout.h"
+
+
+// ======== MEMBER FUNCTIONS ========
+
+CFsAlfScrollbarLayout::CFsAlfScrollbarLayout()
+    : CAlfLayout()
+    {
+    FUNC_LOG;
+    }
+
+
+void CFsAlfScrollbarLayout::ConstructL( CAlfControl& aOwnerControl )
+    {
+    FUNC_LOG;
+    CAlfLayout::ConstructL( aOwnerControl );
+
+    iOwnerControl = &aOwnerControl;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Construct a new scrollbar layout and give its ownership to a control.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CFsAlfScrollbarLayout* CFsAlfScrollbarLayout::AddNewL(
+    CAlfControl& aOwnerControl,
+    CAlfLayout* aParentLayout )
+    {
+    FUNC_LOG;
+    TInt ownerHandle( aOwnerControl.Identifier() );
+    TInt parentlayouthandle( 0 );
+    if ( aParentLayout )
+        {
+        parentlayouthandle = aParentLayout->Identifier();
+        }
+
+    TInt2 inputParams( aOwnerControl.Identifier(), parentlayouthandle );
+
+    TPckg<TInt2> paramBuf( inputParams );
+
+    CFsAlfScrollbarLayout* layout( new( ELeave )CFsAlfScrollbarLayout() );
+    CleanupStack::PushL( layout );
+
+    layout->CAlfVisual::ConstructL(
+        aOwnerControl,
+        EFsScrollbarCreateScreenLayout,
+        KFsScrollbarImplementationId, paramBuf );
+
+    User::LeaveIfError( aOwnerControl.Append( layout, aParentLayout ) );
+    CleanupStack::Pop( layout );
+    return layout;
+    }
+
+
+CFsAlfScrollbarLayout::~CFsAlfScrollbarLayout()
+    {
+    FUNC_LOG;
+    SetVisibilityMode( EFsScrollbarHideAlways, EFsScrollbarVertical );
+    SetVisibilityMode( EFsScrollbarHideAlways, EFsScrollbarHorizontal );
+    ReleaseCustomImage( EFsScrollbarVertical );
+    ReleaseCustomImage( EFsScrollbarHorizontal );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Set the range of the scrollbar. Will not actually move the scrollbar until
+// Update() is called.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetRange(
+    TInt aStart,
+    TInt aEnd,
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    scrollbarSet.iScrollbar = aScrollbar;
+    scrollbarSet.iRangeStart = aStart;
+    scrollbarSet.iRangeEnd = aEnd;
+
+    SendCommand( EFsScrollbarLayoutSetScrollbarRangeCommand, scrollbarSet );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Get scrollbars minimum range value.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CFsAlfScrollbarLayout::RangeStart( TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iRangeStart;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Get scrollbars maximum range value.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CFsAlfScrollbarLayout::RangeEnd( TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iRangeEnd;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Set the count of visible units at the time.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetThumbSpan(
+    TInt aThumbSpan,
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    scrollbarSet.iScrollbar = aScrollbar;
+    scrollbarSet.iThumbSpan = aThumbSpan;
+    SendCommand( EFsScrollbarLayoutSetScrollbarThumbSpanCommand,
+        scrollbarSet );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Get the set value for visible units.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CFsAlfScrollbarLayout::ThumbSpan( TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iThumbSpan;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Adjust the vertical scrollbar's width.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetVerticalScrollbarWidth(
+    TInt aWidth,
+    TInt aTransitionTime )
+    {
+    FUNC_LOG;
+    TInt2 params( aWidth, aTransitionTime );
+    TPckgC<TInt2> inBuf( params );
+    TBuf8<1> dummy;
+    TInt err( Comms()->DoSynchronousCmd(
+        EFsScrollbarLayoutSetVerticalScrollbarWidthCommand,
+        inBuf,
+        dummy ) );
+
+    __ASSERT_ALWAYS( err == KErrNone, User::Invariant() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Adjust the horizontal scrollbar's height.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetHorizontalScrollbarHeight(
+    TInt aHeight,
+    TInt aTransitionTime )
+    {
+    FUNC_LOG;
+    TInt2 params( aHeight, aTransitionTime );
+    TPckgC<TInt2> inBuf( params );
+    TBuf8<1> dummy;
+    TInt err( Comms()->DoSynchronousCmd(
+        EFsScrollbarLayoutSetHorizontalScrollbarHeightCommand,
+        inBuf,
+        dummy ) );
+
+    __ASSERT_ALWAYS( err == KErrNone, User::Invariant() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Set the position of the scrollbar.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetScrollbarPos(
+    const TInt aPos,
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    scrollbarSet.iScrollbar = aScrollbar;
+    scrollbarSet.iScrollbarPos = aPos;
+
+    SendCommand( EFsScrollbarLayoutSetScrollbarPosCommand, scrollbarSet );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Resolve the position of the scrollbar.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CFsAlfScrollbarLayout::ScrollbarPos( TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iScrollbarPos;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Set the scrollbar visibility.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetVisibilityMode(
+    TFsScrollbarVisibility aVisibility,
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    scrollbarSet.iScrollbar = aScrollbar;
+    scrollbarSet.iVisibility = aVisibility;
+
+    SendCommand( EFsScrollbarLayoutSetScrollbarVisibilityCommand,
+        scrollbarSet );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Resolve the scrollbar visibility.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TFsScrollbarVisibility CFsAlfScrollbarLayout::VisibilityMode(
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iVisibility;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Resolve if the specified scrollbar is visible.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TBool CFsAlfScrollbarLayout::IsScrollbarVisible(
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    TFsScrollbarSet paramScrollbarSet;
+    paramScrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutGetScrollbarSettingsCommand,
+        paramScrollbarSet, scrollbarSet );
+    return scrollbarSet.iVisible;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Change the bar image to custom image. Ownership of the brushes are changed.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::SetScrollbarImagesL(
+    CAlfImageBrush* aBarBrush, CAlfImageBrush* aThumbBrush,
+    TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    ReleaseCustomImage( aScrollbar );
+
+    if ( EFsScrollbarVertical == aScrollbar )
+        {
+        iVBarBrush = aBarBrush;
+        iVThumbBrush = aThumbBrush;
+        }
+    else
+        {
+        iHBarBrush = aBarBrush;
+        iHThumbBrush = aThumbBrush;
+        }
+
+    TFsImageSet imageSet;
+    imageSet.iBarBrushId = aBarBrush->Identifier();
+    imageSet.iThumbBrushId = aThumbBrush->Identifier();
+    imageSet.iScrollbar = aScrollbar;
+
+    TPckgC<TFsImageSet> inBuf( imageSet );
+    TBuf8<1> dummy;
+
+    TInt err = Comms()->DoSynchronousCmd(
+        EFsScrollbarLayoutSetScrollbarCustomImagesCommand,
+        inBuf,
+        dummy );
+
+    __ASSERT_ALWAYS( KErrNone == err, User::Invariant() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Update the visibility of scrollbars.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsAlfScrollbarLayout::Update( TInt aLayoutTransitionTime )
+    {
+    FUNC_LOG;
+    TPckgC<TInt> inBuf( aLayoutTransitionTime );
+    TBuf8<1> outDum;
+    TInt err = Comms()->DoSynchronousCmd(
+        EFsScrollbarLayoutSetScrollbarUpdateCommand,
+        inBuf,
+        outDum );
+
+    __ASSERT_ALWAYS( err == KErrNone, User::Invariant() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Get the target size of the scrolbar layout without the scrollbars.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TAlfRealPoint CFsAlfScrollbarLayout::LayoutSize()
+    {
+    FUNC_LOG;
+    TAlfRealPoint layoutSize;
+
+    TBuf8<1> inBuf;
+    TPckg<TAlfRealPoint> outBuf( layoutSize );
+    TInt err = Comms()->DoSynchronousCmd(
+        EFsScrollbarLayoutGetScrollbarLayoutSizeCommand,
+        inBuf,
+        outBuf );
+
+    __ASSERT_ALWAYS( KErrNone == err, User::Invariant() );
+
+    return layoutSize;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Send a command to server.
+// ---------------------------------------------------------------------------
+//
+void CFsAlfScrollbarLayout::SendCommand(
+    TFsScrollbarCommand aCommandId,
+    TFsScrollbarSet& aInScrollbarSet )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet dummySet;
+    SendCommand( aCommandId, aInScrollbarSet, dummySet );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Send a command to server.
+// ---------------------------------------------------------------------------
+//
+void CFsAlfScrollbarLayout::SendCommand(
+    TFsScrollbarCommand aCommandId,
+    TFsScrollbarSet& aInScrollbarSet,
+    TFsScrollbarSet& aOutScrollbarSet )
+    {
+    FUNC_LOG;
+    TPckgC<TFsScrollbarSet> inBuf( aInScrollbarSet );
+    TPckg<TFsScrollbarSet> outBuf( aOutScrollbarSet );
+    TInt err = Comms()->DoSynchronousCmd(
+        aCommandId,
+        inBuf,
+        outBuf );
+
+    __ASSERT_ALWAYS( err == KErrNone, User::Invariant() );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Release custom image reserved memory.
+// ---------------------------------------------------------------------------
+//
+void CFsAlfScrollbarLayout::ReleaseCustomImage( TFsScrollbar aScrollbar )
+    {
+    FUNC_LOG;
+    TFsScrollbarSet scrollbarSet;
+    scrollbarSet.iScrollbar = aScrollbar;
+    SendCommand( EFsScrollbarLayoutSetScrollbarClearCustomImagesCommand,
+        scrollbarSet );
+    if ( EFsScrollbarVertical == aScrollbar )
+        {
+        delete iVBarBrush;
+        iVBarBrush = NULL;
+        delete iVThumbBrush;
+        iVThumbBrush = NULL;
+        }
+    else
+        {
+        delete iHBarBrush;
+        iHBarBrush = NULL;
+        delete iHThumbBrush;
+        iHThumbBrush = NULL;
+        }
+    }
+