diff -r 000000000000 -r 8466d47a6819 emailuis/uicomponents/src/fscontrolbarvisualiser.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/uicomponents/src/fscontrolbarvisualiser.cpp	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,544 @@
+/*
+* 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:  Visualiser class for Control Bar component.
+*
+*/
+
+
+//<cmail> SF
+#include "emailtrace.h"
+#include <alf/alfdecklayout.h>
+#include <alf/alfgradientbrush.h>
+#include <alf/alfimagevisual.h>
+#include <alf/alfborderbrush.h>
+#include <alf/alfframebrush.h>
+#include <alf/alfimagebrush.h>
+#include <alf/alfbrusharray.h>
+//</cmail>
+#include <AknUtils.h>
+
+#include "fslayoutmanager.h"
+#include "fscontrolbarvisualiser.h"
+#include "fscontrolbar.h"
+#include "fscontrolbarmodel.h"
+#include "fscontrolbutton.h"
+#include "fscontrolbuttonvisualiser.h"
+#include "fscontrolbuttonmodel.h"
+#include "fsgenericpanic.h"
+
+#define DEFAULT_SELECTOR KAknsIIDQsnFrList
+
+const TReal KFsSelectorOpacity = 1;
+const TInt KFsSelectorPaddingTop = 0;
+const TInt KFsSelectorPaddingBottom = 0;
+const TInt KFsSelectorPaddingLeft = 0;
+const TInt KFsSelectorPaddingRight = 0;
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+CFsControlBarVisualiser::CFsControlBarVisualiser(
+    CFsControlBar& aParentControl,
+    CFsControlBarModel& aModel ) :
+    iModel( aModel ),
+    iParent( aParentControl ),
+    iLastSelectedButton( -1 )
+    {
+    FUNC_LOG;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Second phase constructor.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::ConstructL()
+    {
+    FUNC_LOG;
+    // creating layout and visual controls
+    iBarLayout = CAlfDeckLayout::AddNewL( iParent );
+    iBarLayout->EnableBrushesL();
+    iBarLayout->SetFlags( EAlfVisualFlagLayoutUpdateNotification |
+            EAlfVisualFlagManualPosition |
+            EAlfVisualFlagManualSize );
+    iBarLayout->SetSize( iModel.Size() );
+    iBarLayout->SetClipping( ETrue );
+
+    // controlbar background color
+    CAlfEnv& env( iParent.Env() );
+    iBgColor = CAlfGradientBrush::NewL( env );
+    iBgColor->SetColor( iModel.BarBgColor() );
+    iBarLayout->Brushes()->AppendL( iBgColor, EAlfDoesNotHaveOwnership );
+
+    // Background image
+    iBgLayout = CAlfLayout::AddNewL( iParent, iBarLayout );
+    iBgLayout->EnableBrushesL();
+
+    TRect parentRect( TPoint( 0, 0 ), iBarLayout->Size().Target() );
+    TRect layoutRect( 0, 0, 0, 0 );
+
+    // Adjust the background image size and position.
+    CFsLayoutManager::LayoutMetricsRect( parentRect,
+        CFsLayoutManager::EFsLmBgSpFsCtrlbarPane, layoutRect,
+        0 );
+    iBgLayout->SetSize( layoutRect.Size() );
+    iBgLayout->SetPos( layoutRect.iTl );
+
+    // Use image from skin.
+    iDefaultBgBrush = CAlfFrameBrush::NewL( env, KAknsIIDQsnFrStatusFlat );
+    TSize size(
+        iBarLayout->Size().Target().iX, iBarLayout->Size().Target().iY );
+    layoutRect = size;
+
+    //<CMAIL> As a device user, I want Message List items to follow platform layouts to be consistent with other apps
+
+    /*
+    REMOVED: Not needed
+
+    TRect childRect( layoutRect );
+    // LAF values needed
+    childRect.Shrink( 4, 4 );
+    iDefaultBgBrush->SetFrameRectsL( childRect, layoutRect );
+    */
+    //</CMAIL>
+
+    iBgLayout->Brushes()->AppendL(
+        iDefaultBgBrush, EAlfDoesNotHaveOwnership );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CFsControlBarVisualiser* CFsControlBarVisualiser::NewL(
+    CFsControlBar& aParentControl,
+    CFsControlBarModel& aModel )
+    {
+    FUNC_LOG;
+    CFsControlBarVisualiser* self =
+        new (ELeave) CFsControlBarVisualiser( aParentControl, aModel );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CFsControlBarVisualiser::~CFsControlBarVisualiser()
+    {
+    FUNC_LOG;
+    ClearBackgroundImage();
+    delete iBgColor;
+    delete iSelectorBrush;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Redraws control.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::RefreshL( TBool aScreenSizeChanged )
+    {
+    FUNC_LOG;
+    TInt focusedButton( -1 );
+    CFsControlButton* button = NULL;
+
+    if ( aScreenSizeChanged )
+        {
+        iBarLayout->SetSize( iModel.Size() );
+        }
+
+    for( TInt i( 0 ); iModel.Count() > i; i++ )
+        {
+        button = iModel.ButtonByIndex( i );
+
+        // draw only visible buttons
+        if ( button->IsVisible() )
+            {
+            if ( button->IsFocused() )
+                {
+                focusedButton = i;
+                }
+
+            // size of bar changed -> update buttons
+            button->Visualiser()->Refresh();
+            }
+        }
+
+    if( -1 != focusedButton )
+        {
+        DrawSelectorL( focusedButton, aScreenSizeChanged );
+        }
+    else
+        {
+        HideSelector();
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// Sets background color for controlbar.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::SetBackgroundColor( const TRgb& aColor )
+    {
+    FUNC_LOG;
+    // set color
+    iBgColor->SetColor( aColor );
+    iBgColor->SetOpacity( 1 );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Clears controlbar's background color. Controlbar becomes transparent.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CFsControlBarVisualiser::ClearBackgroundColor()
+    {
+    FUNC_LOG;
+    iBgColor->SetOpacity( 0 );
+    }
+
+
+// ---------------------------------------------------------------------------
+// Sets background image for controlbar.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::SetBackgroundImageL( CAlfTexture& aImage )
+    {
+    FUNC_LOG;
+    if ( iDefaultBgBrush )
+        {
+        ClearBackgroundImage();
+        }
+
+    if ( !iBgImage )
+        {
+        CAlfEnv& env( iParent.Env() );
+        iBgImage = CAlfImageBrush::NewL( env, TAlfImage( aImage ) );
+        iBgLayout->Brushes()->AppendL( iBgImage, EAlfDoesNotHaveOwnership );
+        }
+    else
+        {
+        iBgImage->SetImage( TAlfImage( aImage ) );
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// Clears background image for controlbar.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::ClearBackgroundImage()
+    {
+    FUNC_LOG;
+    if ( iDefaultBgBrush )
+        {
+        for ( TInt i( iBarLayout->Brushes()->Count() - 1 ); 0 <= i; i-- )
+            {
+            if ( &iBgLayout->Brushes()->At( i ) == iDefaultBgBrush )
+                {
+                iBgLayout->Brushes()->Remove( i );
+                delete iDefaultBgBrush;
+                iDefaultBgBrush = NULL;
+                break;
+                }
+            }
+        }
+    if ( iBgImage )
+        {
+        for ( TInt i( iBarLayout->Brushes()->Count() - 1 ); 0 <= i; i-- )
+            {
+            if ( &iBgLayout->Brushes()->At( i ) == iBgImage )
+                {
+                iBgLayout->Brushes()->Remove( i );
+                delete iBgImage;
+                iBgImage = NULL;
+                break;
+                }
+            }
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// Update the size of the controlbar layout.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::UpdateSizeL()
+    {
+    FUNC_LOG;
+    iBarLayout->SetSize( iModel.Size() );
+    RefreshL();
+    }
+
+
+// ---------------------------------------------------------------------------
+// Retrieves controlbar's layout.
+// ---------------------------------------------------------------------------
+//
+CAlfDeckLayout* CFsControlBarVisualiser::Layout()
+    {
+    FUNC_LOG;
+    return iBarLayout;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Sets transition time for selector.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::SetSelectorTransitionTimeL(
+    TInt aTransitionTime )
+    {
+    FUNC_LOG;
+    iModel.SetSelectorTransitionTime( aTransitionTime );
+    RefreshL();
+    }
+
+
+// ---------------------------------------------------------------------------
+// Change the selector image.
+// Ownership of the brush is gained.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::SetSelectorImageL(
+    CAlfBrush* aSelectorBrush,
+    TReal32 aOpacity )
+    {
+    FUNC_LOG;
+    // Update the selector if it is visible.
+    if ( iSelector )
+        {
+        if ( iSelector->Brushes()->Count() )
+            {
+            iSelector->Brushes()->Remove( iSelector->Brushes()->Count() - 1 );
+            }
+
+        iSelector->Brushes()->AppendL(
+            aSelectorBrush, EAlfDoesNotHaveOwnership );
+        iSelector->SetOpacity( aOpacity );
+        }
+
+    // Release the old selector brush.
+    delete iSelectorBrush;
+    iSelectorBrush = aSelectorBrush;
+    iSelectorOpacity = aOpacity;
+    }
+
+
+// ---------------------------------------------------------------------------
+// Reorder the visuals. Button visual are build from two separate visual,
+// background and content. Those are arranged so that the background visual
+// are set at back and contents are to front. Selector visual is placed
+// between them.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::ReorderVisuals()
+    {
+    FUNC_LOG;
+    if ( iSelector )
+        {
+        TInt visualOrder( KErrNotFound );
+        if ( KErrNotFound == visualOrder )
+            {
+            visualOrder = iBarLayout->FindVisual( iBgLayout );
+            }
+
+        // Reorder the buttons.
+        visualOrder++;
+        for ( TInt i( 0 ); iModel.Count() > i; i++ )
+            {
+            // Reorder visual so that the button background visuals get to
+            // bottom and their contents get to the front. Selector will be
+            // places between them.
+            CFsControlButtonVisualiser* button( NULL );
+            button = iModel.ButtonByIndex( i )->Visualiser();
+            if ( button->IsVisible() )
+                {
+                iBarLayout->MoveVisualToFront( *button->ContentLayout() );
+                iBarLayout->Reorder( *button->Layout(), visualOrder );
+                visualOrder++;
+                }
+            }
+
+        // Move the selector after every button's background visual.
+        iBarLayout->Reorder( *iSelector, visualOrder );
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// Hides\shows selector rectangle over selected button.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::MakeSelectorVisible(
+        TBool aShow, TBool aFromTouch )
+    {
+    FUNC_LOG;
+
+    TReal32 opacity( 0 );
+    if( aShow )
+        {
+        opacity = 1;
+        }
+    if( iSelector )
+        {
+        iTouchPressed = aFromTouch;
+        CFsControlButton* button = NULL;
+        const TInt buttonCount( iModel.Count() );
+        for( TInt buttonIndex( 0 ); buttonIndex < buttonCount; ++buttonIndex )
+            {
+            button = iModel.ButtonByIndex( buttonIndex );
+            if( button->IsFocused() )
+                {
+                button->MakeFocusVisible( aShow );
+                break;
+                }
+            }
+        iSelector->SetOpacity( opacity );
+        }
+    iSelectorOpacity = opacity;
+    }
+
+// ---------------------------------------------------------------------------
+// Draws selector rectangle over selected button.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::DrawSelectorL(
+    const TInt aSelectedButtonIndex,
+    TBool aFastDraw )
+    {
+    FUNC_LOG;
+    CFsControlButtonVisualiser* vis( NULL );
+
+    // set selector's delay
+    TInt transitionTime( aFastDraw ? 0 : iModel.SelectorTransitionTime() );
+    TBool setDefaultBrushBorders( EFalse );
+
+    if ( !iSelector )
+        {
+        // Flags used because otherwise it would generate a callback here
+        // before the image visual is fully created.
+        iBarLayout->SetFlag( EAlfVisualFlagFreezeLayout );
+        iSelector = iParent.AppendVisualL( EAlfVisualTypeVisual, iBarLayout );
+
+        ReorderVisuals();
+
+        iBarLayout->ClearFlag( EAlfVisualFlagFreezeLayout );
+        iSelector->SetFlag( EAlfVisualFlagManualPosition );
+        iSelector->SetFlag( EAlfVisualFlagManualSize );
+
+        iSelector->EnableBrushesL();
+
+        if ( !iSelectorBrush )
+            {
+            // Use the default selector brush.
+            CAlfFrameBrush* brush(
+                CAlfFrameBrush::NewL( iParent.Env(), KAknsIIDQsnFrList ) );
+            // Ownership of the brush is transfered.
+            SetSelectorImageL( brush, KFsSelectorOpacity );
+            // Brush rects are set later.
+            setDefaultBrushBorders = ETrue;
+            }
+        else
+            {
+            // Use the custom selector brush.
+            iSelector->Brushes()->AppendL(
+                iSelectorBrush, EAlfDoesNotHaveOwnership );
+            iSelector->SetOpacity( iSelectorOpacity );
+            }
+
+        // When making the selector visible then do it without any delays.
+        transitionTime = 0;
+        }
+
+    // retieve button's visualiser
+    vis = iModel.ButtonByIndex( aSelectedButtonIndex )->Visualiser();
+
+    // retieve button's pos and size
+    TPoint point( vis->Pos().iX.Target(), vis->Pos().iY.Target() );
+    TSize size( vis->Size().iX.Target(), vis->Size().iY.Target() );
+    point.operator-=(
+        TPoint( KFsSelectorPaddingLeft, KFsSelectorPaddingTop ) );
+    size += TSize( KFsSelectorPaddingLeft + KFsSelectorPaddingRight,
+        KFsSelectorPaddingTop + KFsSelectorPaddingBottom );
+
+    if( iTouchPressed )
+        {
+        transitionTime = 0;
+        iTouchPressed = EFalse;
+        }
+
+    iLastSelectedButton = aSelectedButtonIndex;
+    // set new pos and size of selector
+    iSelector->SetPos( TAlfRealPoint( point ), transitionTime );
+    iSelector->SetSize( TAlfRealSize( size ), transitionTime );
+
+    // Setting the selector skin to fit the selector visual size.
+    if ( setDefaultBrushBorders )
+        {
+        CAlfBrush& brush(
+            iSelector->Brushes()->At( iSelector->Brushes()->Count() - 1 ) );
+
+        //<CMAIL> As a device user, I want Message List items to follow platform layouts to be consistent with other apps
+
+        /*
+
+        CAlfFrameBrush* defaultSelectorBrush(
+            static_cast<CAlfFrameBrush*>( &brush ) );
+        TRect layoutRect( size );
+
+
+        REMOVED: Not needed
+
+        TRect childRect( layoutRect );
+        // LAF values needed
+        childRect.Shrink( 1, 1 );
+        defaultSelectorBrush->SetFrameRectsL( childRect, layoutRect );
+        */
+        //</CMAIL>
+
+        }
+    }
+
+
+// ---------------------------------------------------------------------------
+// Hides selector rectangle.
+// ---------------------------------------------------------------------------
+//
+void CFsControlBarVisualiser::HideSelector()
+    {
+    FUNC_LOG;
+    iLastSelectedButton = -1;
+    if ( iSelector )
+        {
+        // Flags used because otherwise it would generate a callback here
+        // before the visual is fully destroyed.
+        iBarLayout->SetFlag( EAlfVisualFlagFreezeLayout );
+        iSelector->RemoveAndDestroyAllD();
+        iSelector = NULL;
+        iBarLayout->ClearFlag( EAlfVisualFlagFreezeLayout );
+        iBarLayout->UpdateChildrenLayout();
+        }
+    }
+