javauis/lcdui_akn/lcdui/src/CMIDCanvasGraphicsItem.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 21 Jun 2010 15:32:50 +0300
branchRCL_3
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parent 25 9ac0a0a7da70
child 59 e5618cc85d74
permissions -rw-r--r--
Revision: v2.1.30 Kit: 2010125
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/*
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* Copyright (c) 2009 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:  CMIDCanvasGraphicsItem - Implements the native part Canvas Graphics Item class.
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*
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*/
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// EXTERNAL INCLUDES
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#include <MMIDCustomComponentContainer.h>
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#include <lcdui.h>
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#include <fbs.h>
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#include <bitdev.h>
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#include <bitstd.h>
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#include <j2me/jdebug.h>
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// INTERNAL INCLUDES
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#include "CMIDCanvasGraphicsItem.h"
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#include "CMIDCanvasGraphicsItemPainter.h"
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#include "CMIDUtils.h"
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// Count of compound components in this custom component.
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const TInt KComponentCount      = 1;
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::NewL
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// ---------------------------------------------------------------------------
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//
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CMIDCanvasGraphicsItem* CMIDCanvasGraphicsItem::NewL(
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    const TCtorParams& aParams)
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{
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    CMIDCanvasGraphicsItem* self = new(ELeave) CMIDCanvasGraphicsItem();
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    CleanupStack::PushL(self);
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    self->ConstructL(aParams);
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    CleanupStack::Pop(self);
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    return self;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::ConstructL(const TCtorParams& aParams)
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{
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    // Set painter
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    iItemPainter = aParams.iPainterHandle;
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    iItemPainter->SetItem(this);
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    iComponentContainer = NULL;
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    iUtils = aParams.iUtils;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::CMIDCanvasGraphicsItem
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// ---------------------------------------------------------------------------
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//
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CMIDCanvasGraphicsItem::CMIDCanvasGraphicsItem() :
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        iUtils(NULL)
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{
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    // No implementation.
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::~CMIDCanvasGraphicsItem
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// ---------------------------------------------------------------------------
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//
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CMIDCanvasGraphicsItem::~CMIDCanvasGraphicsItem()
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{
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    DEBUG("CMIDCanvasGraphicsItem::~CMIDCanvasGraphicsItem +");
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    // Remove this component from the container if set.
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    if (iComponentContainer)
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    {
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        iComponentContainer->UnregisterComponent(this);
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    }
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    DEBUG("CMIDCanvasGraphicsItem::~CMIDCanvasGraphicsItem -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::CustomComponentControlCount
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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TInt CMIDCanvasGraphicsItem::CustomComponentControlCount() const
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{
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    return KComponentCount;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::CustomComponentControl
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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CCoeControl* CMIDCanvasGraphicsItem::CustomComponentControl(TInt aIndex)
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{
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    if (aIndex == 0)
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    {
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        return iItemPainter;
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    }
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    return NULL;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::CustomComponentContainerDisposing
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::CustomComponentContainerDisposing()
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{
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    iComponentContainer = NULL;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::SetParentL
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetParentL(
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    MMIDCustomComponentContainer* aComponentContainer)
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{
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    DEBUG("CMIDCanvasGraphicsItem::SetParentL +");
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    // Remove association from the previous container.
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    if (iComponentContainer)
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    {
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        DEBUG("CMIDCanvasGraphicsItem::SetParentL, unregistering old association");
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        iComponentContainer->UnregisterComponent(this);
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        iComponentContainer = NULL;
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    }
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    // Associate this component to the new container.
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    if (aComponentContainer)
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    {
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        DEBUG("CMIDCanvasGraphicsItem::SetParentL, registering new");
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        // Register this custom component to the container.
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        aComponentContainer->RegisterComponentL(this);
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        // Initializes painter with the new parent
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        iItemPainter->SetParentL(aComponentContainer);
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    }
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    // Store container. NULL is ok.
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    iComponentContainer = aComponentContainer;
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25
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    // Set item size and position is needed here.
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    TSize size = iItemPainter->Size();
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    SetSizeL(size.iWidth, size.iHeight);
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    TPoint position = iItemPainter->Position();
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    SetPosition(position.iX, position.iY);
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    if (iUtils)
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    {
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        // Set canvas fullscreen size is needed here.
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        iItemPainter->SetOnScreenCanvasRect(iUtils->GetOnScreenCanvasRect());
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    }
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19
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    DEBUG("CMIDCanvasGraphicsItem::SetParentL -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::SetDirectContainerL
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetDirectContainerL(
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    MDirectContainer* aDirectContainer)
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{
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    iItemPainter->SetDirectContainerL(aDirectContainer);
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::SetElevationL
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetElevationL(TInt aElevation)
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{
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    DEBUG_INT("CMIDCanvasGraphicsItem::SetElevationL +, aElevation=%d",
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              aElevation);
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    // Parent must have been set.
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    __ASSERT_DEBUG(iComponentContainer, User::Invariant());
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    // The elevation is handled in custom component container.
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    iComponentContainer->SetComponentIndexL(this, aElevation);
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    DEBUG("CMIDCanvasGraphicsItem::SetElevationL -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::Elevation
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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TInt CMIDCanvasGraphicsItem::Elevation()
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{
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    DEBUG("CMIDCanvasGraphicsItem::Elevation +");
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    // Parent must have been set.
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    __ASSERT_DEBUG(iComponentContainer, User::Invariant());
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    // The elevation is retrieved from custom component container
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    TInt index = iComponentContainer->ComponentIndex(this);
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    DEBUG_INT("CMIDCanvasGraphicsItem::Elevation - index=%d", index);
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    return index;
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::Show
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetVisibleL(TBool aVisible)
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{
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    DEBUG_INT("CMIDCanvasGraphicsItem::SetVisibleL +, aVisible=%d", aVisible);
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    // SetParentL must be called before Show.
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    __ASSERT_DEBUG(iComponentContainer, User::Invariant());
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    iItemPainter->SetVisibleL(aVisible);
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    DEBUG("CMIDCanvasGraphicsItem::SetVisibleL -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::SetSizeL
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetSizeL(const TInt aWidth, const TInt aHeight)
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{
25
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    // We need store non-scaled size for possible resolution
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    // and fullscreen mode changes.
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    iNonScaledSize = TSize(aWidth, aHeight);
19
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    DEBUG_INT2(
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        "CMIDCanvasGraphicsItem::SetItemSize +, aWidth=%d, aHeight=%d",
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        aWidth, aHeight);
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25
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    // Set item size.
19
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    iItemPainter->SetItemSizeL(aWidth, aHeight);
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25
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    // If parent is in fullscreen mode
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    // then it tries scale viewing rect for painter.
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    // Otherwise the non scaled size is set.
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    if (IsScalingOn())
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    {
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        iItemPainter->SetViewSize(iUtils->DoScaling(iNonScaledSize));
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    }
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    else
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    {
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        iItemPainter->SetViewSize(iNonScaledSize);
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    }
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19
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    DEBUG("CMIDCanvasGraphicsItem::SetItemSize -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::SetPosition
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::SetPosition(const TInt aX, const TInt aY)
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{
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    DEBUG_INT2("CMIDCanvasGraphicsItem::SetPosition +, aX=%d, aY=%d", aX, aY);
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25
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    // We need store non-scaled size for possible resolution
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    // and fullscreen mode changes.
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    iNonScaledPosition = TPoint(aX, aY);
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    // If parent is in fullscreen mode
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    // then it tries scale position of item.
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    // Otherwise the non scaled size is set.
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    if (IsScalingOn())
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    {
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        TPoint origin = iUtils->DoScalingAndPositioning(iNonScaledPosition);
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        iItemPainter->SetPosition(origin.iX, origin.iY);
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    }
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    else
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    {
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        iItemPainter->SetPosition(aX, aY);
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    }
19
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    DEBUG("CMIDCanvasGraphicsItem::SetPosition -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::Dispose
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::Dispose()
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{
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    DEBUG("CMIDCanvasGraphicsItem::Dispose +");
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    delete this;
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    DEBUG("CMIDCanvasGraphicsItem::Dispose -");
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::HandleFullscreenModeChange
25
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// (other items are commented in the header file)
19
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::HandleFullscreenModeChange()
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{
25
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    // Calling all functions which set size and position.
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    TRAPD(err, SetSizeL(iNonScaledSize.iWidth, iNonScaledSize.iHeight));
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    if (err != KErrNone)
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    {
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        DEBUG_INT("CMIDCanvasGraphicsItem::HandleFullscreenModeChange: SetSizeL method leave with %d code", err);
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    }
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    SetPosition(iNonScaledPosition.iX, iNonScaledPosition.iY);
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   326
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    if (iUtils)
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    {
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        // Setting of fullscreen canvas rect.
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        iItemPainter->SetOnScreenCanvasRect(iUtils->GetOnScreenCanvasRect());
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    }
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}
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// ---------------------------------------------------------------------------
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// CMIDCanvasGraphicsItem::HandleResolutionChange
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// (other items are commented in the header file)
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// ---------------------------------------------------------------------------
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//
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void CMIDCanvasGraphicsItem::HandleResolutionChange()
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{
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    // Calling all functions which set size and position.
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    TRAPD(err, SetSizeL(iNonScaledSize.iWidth, iNonScaledSize.iHeight));
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    if (err != KErrNone)
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    {
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        DEBUG_INT("CMIDCanvasGraphicsItem::HandleFullscreenModeChange: SetSizeL method leave with %d code", err);
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    }
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    SetPosition(iNonScaledPosition.iX, iNonScaledPosition.iY);
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    if (iUtils)
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    {
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        // Setting of fullscreen canvas rect.
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        iItemPainter->SetOnScreenCanvasRect(iUtils->GetOnScreenCanvasRect());
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    }
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}
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TBool CMIDCanvasGraphicsItem::IsScalingOn() const
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{
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    return iUtils && iComponentContainer && iUtils->IsScalingEnabled() &&
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           iComponentContainer->IsFullScreen();
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}
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// End of file