messagingappbase/msgeditor/viewsrc/MsgHeader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:44:11 +0200
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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  MsgHeader implementation
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*
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*/
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// ========== INCLUDE FILES ================================
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#include <eikenv.h>                        // for CEikonEnv
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#include <gulutil.h>                       // for ColorUtils
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#include <AknUtils.h>                      // for AknUtils
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#include <applayout.cdl.h>              // LAF
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#include <AknsDrawUtils.h>                 // for Skinned drawing
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#include "MsgEditorCommon.h"               //
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#include "MsgHeader.h"                     // for CMsgHeader
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#include "MsgCaptionedHighlight.h"
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#include "MsgDummyHeaderCleaner.h"  
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#include "MsgControlArray.h"               // for CMsgControlArray
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#include "MsgExpandableControl.h"
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#include "MsgEditorPanic.h"                // for CMsgEditor panics
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#include "MsgEditorLogging.h"
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// ========== EXTERNAL DATA STRUCTURES =====================
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// ========== EXTERNAL FUNCTION PROTOTYPES =================
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// ========== CONSTANTS ====================================
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// ========== MACROS =======================================
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// ========== LOCAL CONSTANTS AND MACROS ===================
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// ========== MODULE DATA STRUCTURES =======================
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// ========== LOCAL FUNCTION PROTOTYPES ====================
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// ========== LOCAL FUNCTIONS ==============================
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// ========== MEMBER FUNCTIONS =============================
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// ---------------------------------------------------------
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// CMsgHeader::CMsgHeader
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//
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// Constructor.
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// ---------------------------------------------------------
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//
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CMsgHeader::CMsgHeader( const TMargins& aMargins )
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    : CMsgFormComponent( aMargins )
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    {
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    }
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// ---------------------------------------------------------
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// CMsgHeader::~CMsgHeader
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//
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// Destructor.
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// ---------------------------------------------------------
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//
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CMsgHeader::~CMsgHeader()
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    {
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    AknsUtils::DeregisterControlPosition( iFrame );
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    delete iFrame;
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    delete iHeaderCleaner;
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    AknsUtils::DeregisterControlPosition( this );
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    }
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// ---------------------------------------------------------
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// CMsgHeader::NewL
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//
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// Factory method that creates this control.
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// ---------------------------------------------------------
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//
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CMsgHeader* CMsgHeader::NewL( const CCoeControl& aParent, const TMargins& aMargins )
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    {
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    CMsgHeader* self = new ( ELeave ) CMsgHeader( aMargins );
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    CleanupStack::PushL( self );
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    self->ConstructL( aParent );
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    CleanupStack::Pop();
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    return self;
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    }
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// ---------------------------------------------------------
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// CMsgHeader::ConstructL
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//
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// 2nd phase constructor.
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// ---------------------------------------------------------
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//
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void CMsgHeader::ConstructL( const CCoeControl& aParent )
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    {
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    CMsgFormComponent::BaseConstructL( aParent );
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    iFrame = CMsgCaptionedHighlight::NewL( *this );
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    iHeaderCleaner = new (ELeave) CMsgDummyHeaderCleaner(this);
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    iHeaderCleaner->ConstructL();
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#ifdef RD_SCALABLE_UI_V2
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    User::LeaveIfError( iFrame->SetHitTest( this ) );
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    User::LeaveIfError( iHeaderCleaner->SetHitTest( this ) );
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#endif // RD_SCALABLE_UI_V2
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    }
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// ---------------------------------------------------------
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// CMsgHeader::SetAndGetSizeL
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//
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// Calculates and sets the size for the header and returns new size as reference
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// aSize. If aInit == ETrue, sets also size for the controls by calling their
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// SetAndGetSizeL functions.
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// ---------------------------------------------------------
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//
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void CMsgHeader::SetAndGetSizeL( TSize& aSize, TBool aInit )
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    {
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    aSize = MsgEditorCommons::MsgHeaderPane().Size();
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    TInt numberOfControls( iControls->Count() );
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    iMargins.iTop = 0;
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    iMargins.iBottom = numberOfControls ? MsgEditorCommons::MsgBaseLineDelta() : 
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                                          0;
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    TInt marginsDeltaHeight = iMargins.iTop + iMargins.iBottom;
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    TInt marginsDeltaWidth = iMargins.iLeft + iMargins.iRight;
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    TSize headerSize( aSize.iWidth, marginsDeltaHeight );
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    TSize controlSize( 0, 0 );
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    controlSize.iWidth = aSize.iWidth - marginsDeltaWidth;
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    CMsgBaseControl* control = NULL;
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    TInt minimumHeigth = marginsDeltaHeight;
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    for ( TInt cc = 0; cc < numberOfControls; cc++ )
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        {
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        controlSize.iHeight = aSize.iHeight;
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        control = (*iControls)[cc];
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        if ( aInit )
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            {
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            control->SetAndGetSizeL( controlSize );
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            }
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        else
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            {
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            controlSize = control->Size();
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            }
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        headerSize.iHeight += control->DistanceFromComponentAbove() + controlSize.iHeight /* + 1 */;
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        minimumHeigth += control->DistanceFromComponentAbove() + control->MinimumSize().iHeight /* + 1 */;
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        //MEBLOGGER_WRITEF(_L("MEB: CMsgHeader::SetAndGetSizeL: headerSize.iHeight %d "), headerSize.iHeight);
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        }
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    if ( minimumHeigth < marginsDeltaHeight )
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        // make top margin higher if there is no space for the icon
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        {
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        TInt additionalTopMargin = marginsDeltaHeight - minimumHeigth;
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        headerSize.iHeight += additionalTopMargin;
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        iMargins.iTop += additionalTopMargin;
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        }
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    SetSizeWithoutNotification( headerSize );
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    aSize = headerSize;
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    }
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// ---------------------------------------------------------
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// CMsgHeader::CountComponentControls
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//
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// Returns a number of controls.
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// ---------------------------------------------------------
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//
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TInt CMsgHeader::CountComponentControls() const
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    {
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    // Component controls + iFrame + iHeaderCleaner
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    return ( CMsgFormComponent::CountComponentControls() + 1 + 1);
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    }
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// ---------------------------------------------------------
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// CMsgHeader::ComponentControl
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//
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// Returns a control of index aIndex.
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// ---------------------------------------------------------
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//
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CCoeControl* CMsgHeader::ComponentControl( TInt aIndex ) const
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    {
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    // The order of component is important as now the frame gets drawn
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    // before the editor edwins. In the end iHeaderCleaner 
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    // cleans the top of the display
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    TInt compCount = CMsgFormComponent::CountComponentControls();
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    // Component controls + iFrame 
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    __ASSERT_DEBUG( aIndex < compCount + 1 + 1,
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        Panic( EMsgIncorrectComponentIndex ) );
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   204
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    if ( aIndex == 0 )
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        {
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        return iFrame;
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        }
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    if ( aIndex <= compCount )
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        {
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        return CMsgFormComponent::ComponentControl( aIndex-1 );
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        }
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    if ( aIndex == compCount +1 )
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        {
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        return iHeaderCleaner;
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        }
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    return NULL;
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    }
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// ---------------------------------------------------------
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// CMsgHeader::HitRegionContains
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// 
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// Note! CONE will do final verification if control is really hit so
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//       not need to do it here.
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// ---------------------------------------------------------
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//
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TBool CMsgHeader::HitRegionContains( const TPoint& /*aPoint*/, 
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                                     const CCoeControl& /*aControl*/ ) const
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    {
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    return EFalse;
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    }
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// ---------------------------------------------------------
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// CMsgHeader::SizeChanged
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//
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// Sets new position for all the controls.
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// ---------------------------------------------------------
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//
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void CMsgHeader::SizeChanged()
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    {
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    MEBLOGGER_ENTERFN( "CMsgHeader::SizeChanged" );
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    CMsgFormComponent::SizeChanged();
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    TRect rect = Rect( );
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	iFrame->SetRect( rect );
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	iHeaderCleaner->SetRect( rect );
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    AknsUtils::RegisterControlPosition( iFrame );
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    AknsUtils::RegisterControlPosition( this );
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    // Resize also the frame control around the focused editor
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    CMsgBaseControl* ctrl = FocusedControl();
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    if( ctrl )
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        {
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        switch( ctrl->ControlType( ) )
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            { // HandleFrameSizeChange should be called only for expandable and address controls
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            case EMsgExpandableControl:
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            case EMsgAddressControl:
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            case EMsgAttachmentControl:
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                {
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                (static_cast<CMsgExpandableControl*>(ctrl))->HandleFrameSizeChange( );    
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                break;
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                }
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            default: // don't call it for example for body control as there's no frame
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                break;
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            }
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        }
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    MEBLOGGER_LEAVEFN( "CMsgHeader::SizeChanged" );
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    }
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// ---------------------------------------------------------
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// CMsgFormComponent::FocusChanged
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//
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// Sets focus off or on if this form component lost focus or gets focused.
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// ---------------------------------------------------------
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//
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void CMsgHeader::FocusChanged( TDrawNow /*aDrawNow*/ )
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    {
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    CMsgFormComponent::FocusChanged( ENoDrawNow );
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    DrawNow();
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    }
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// ---------------------------------------------------------
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// CMsgHeader::Draw
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//
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// Draws the header.
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// ---------------------------------------------------------
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//
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void CMsgHeader::Draw( const TRect& /*aRect*/ ) const
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    {
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    CWindowGc& gc = SystemGc();
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    TRect rect( Rect() );
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    if ( !AknsDrawUtils::Background( AknsUtils::SkinInstance(), 
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                                     AknsDrawUtils::ControlContext( this ), 
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                                     this, 
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                                     gc, 
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                                     rect ) )
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        {
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	    gc.SetBrushColor( AKN_LAF_COLOR( 0 ) );
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		gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
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		gc.SetPenStyle( CGraphicsContext::ENullPen );
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		gc.DrawRect( rect );
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		}
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    }
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//  End of File