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/*
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* Copyright (c) 2004, 2005 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: Implementation of the CVtUiZoomControl control class.
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*
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*/
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// INCLUDE FILES
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#include "CVtUiZoomControl.h"
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#include "VtUiLayout.h"
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#include <AknsUtils.h>
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#include <AknsDrawUtils.h>
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#include "videotelui.hrh"
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#include <cvtlogger.h>
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// CONSTANTS
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// Maximum amount of steps.
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const TInt KVtUiZoomControlMaxSteps = 11;
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// Minimum amount of steps.
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const TInt KVtUiZoomControlMinSteps = 1;
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// Fixed point position.
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const TInt KVtUiZoomControlFixed = 16;
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// Fixed point number, corresponds to one.
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const TInt KVtUiZoomControlOne = ( 1 << KVtUiZoomControlFixed );
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// Amount of partial bits. It is expected that
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// KVtUiZoomControlFixed >= KVtUiZoomControlPartial.
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const TInt KVtUiZoomControlPartial = 8;
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// Maximum duration of zooming from minimum to maximum, in microseconds.
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const TInt KVtUiZoomDurationMax = 2000000;
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// Maximum duration to increase zoom step by one, in microseconds.
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const TInt KVtUiZoomStepDurationMax = 200000;
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// Index of transparent color.
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const TInt KVtUiZoomTransparent = 0;
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// MODULE DATA STRUCTURES
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/**
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* Inner class to hold everything related to one bitmap.
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* @since Series 60 2.6
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*/
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class CVtUiZoomControl::CBitmap
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: public CBase
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{
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public: // Constructors and destructors.
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/**
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* Constructor.
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*/
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CBitmap();
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/**
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* Symbian OS constructor.
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* @param aSize size of the bitmap.
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* @param aMode display mode of the bitmap.
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*/
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void ConstructL(
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const TSize& aSize,
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const TDisplayMode aMode );
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/**
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* Destructor.
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*/
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~CBitmap();
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public:
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/**
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* Returns bitmap.
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* @return bitmap, ownership not passed.
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*/
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inline CFbsBitmap* Bitmap() const;
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/**
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* Returns bitmap context.
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* @return bitmap context, ownership not passed.
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*/
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inline CFbsBitGc* Context() const;
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private:
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// Owned bitmap.
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CFbsBitmap* iBitmap;
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// Owned device.
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CFbsBitmapDevice* iDevice;
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// Owned context.
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CFbsBitGc* iContext;
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};
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::CVtUiZoomControl
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// C++ constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CVtUiZoomControl::CVtUiZoomControl( CVtUiBitmapManager& aBitmapManager )
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: iBitmapManager( aBitmapManager )
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{
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::ConstructL
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// Symbian 2nd phase constructor.
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::ConstructL()
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{
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iZoomDirId =
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iBitmapManager.AddBitmapsL(
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EVtUiBitmap_qgn_indi_zoom_dir,
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EVtUiBitmap_qgn_indi_zoom_dir_mask,
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ETrue );
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iZoomAreaId =
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iBitmapManager.AddBitmapL( EVtUiBitmap_qgn_graf_zoom_area, EFalse );
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iBitmapManager.SetAspectRatio( iZoomAreaId, EFalse );
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iZoomMinId =
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iBitmapManager.AddBitmapL( EVtUiBitmap_qgn_indi_zoom_min, EFalse );
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iBitmapManager.SetAspectRatio( iZoomMinId, EFalse );
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iZoomMaxId =
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iBitmapManager.AddBitmapL( EVtUiBitmap_qgn_indi_zoom_max, EFalse );
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iBitmapManager.SetAspectRatio( iZoomMaxId, EFalse );
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::~CVtUiZoomControl
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// Destructor.
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// -----------------------------------------------------------------------------
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//
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CVtUiZoomControl::~CVtUiZoomControl()
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{
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AknsUtils::DeregisterControlPosition( this );
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iBitmapManager.RemoveBitmap( iZoomDirId );
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iBitmapManager.RemoveBitmap( iZoomAreaId );
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iBitmapManager.RemoveBitmap( iZoomMinId );
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iBitmapManager.RemoveBitmap( iZoomMaxId );
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delete iZoomPartialMask;
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delete iZoomPartialShade;
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delete iZoomPartialShadeMask;
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::SetZoomParams
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::SetZoomParams(
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const TInt aStepCount,
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const TInt aCurrentStep )
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{
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iCurrentZoomStep = aCurrentStep;
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iMaxZoomStep = aStepCount;
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if ( iMaxZoomStep < 0 )
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{
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iMaxZoomStep = 0;
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}
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iCurrentZoomStep = Max( Min( iCurrentZoomStep, iMaxZoomStep ), 0 );
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::CommitL
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::CommitL()
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{
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ReportEventL( MCoeControlObserver::EEventStateChanged );
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::IsZoomEnabled
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// -----------------------------------------------------------------------------
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//
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TBool CVtUiZoomControl::IsZoomEnabled() const
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{
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return ( iMaxZoomStep > 0 );
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::GetZoomParams
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::GetZoomParams(
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TInt& aStepCount,
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TInt& aCurrentStep ) const
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{
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aStepCount = iMaxZoomStep;
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aCurrentStep = iCurrentZoomStep;
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::UpdateZoomL
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// -----------------------------------------------------------------------------
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//
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TBool CVtUiZoomControl::UpdateZoomL()
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{
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const TInt oldZoomStep = iCurrentZoomStep;
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if ( iZoomDirection )
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{
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__VTPRINT( DEBUG_GEN, "VtUiZmCtl.UpdZoom" )
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TTime timeNow;
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timeNow.UniversalTime();
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const TTimeIntervalMicroSeconds duration =
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timeNow.MicroSecondsFrom( iZoomStartTime );
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if ( duration >= TInt64( KVtUiZoomDurationMax ) )
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{
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// Duration is over maximum, so we can stop zooming.
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if ( iZoomDirection > 0 )
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{
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iCurrentZoomStep = iMaxZoomStep;
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}
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else
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{
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iCurrentZoomStep = 0;
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}
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iZoomDirection = 0;
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}
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else if ( duration < TInt64( 0 ) )
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{
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// Clock has been changed. Stop zooming.
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iZoomDirection = 0;
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}
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else
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{
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// Zoom is increased at least by one step per 0.2 seconds.
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TInt64 minimum( duration.Int64() );
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minimum /= KVtUiZoomStepDurationMax;
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// Zoom is increased from minimum to maximum in 2 seconds.
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TInt64 maximum( duration.Int64() );
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maximum *= iMaxZoomStep;
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maximum /= KVtUiZoomDurationMax;
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// Select maximum.
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TInt zoomStepDelta =
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iZoomDirection * Max( I64INT( minimum ), I64INT( maximum ) );
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TInt zoomStep = iZoomStepStart + zoomStepDelta;
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// If minimum has been reached, zooming can be stopped.
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if ( zoomStep < 0 )
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{
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zoomStep = 0;
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iZoomDirection = 0;
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}
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// If maximum has been reached, zooming can be stopped.
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if ( zoomStep > iMaxZoomStep )
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{
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zoomStep = iMaxZoomStep;
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iZoomDirection = 0;
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}
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iCurrentZoomStep = zoomStep;
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}
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__VTPRINT( DEBUG_GEN, "VtUiZmCtl.chk" )
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}
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const TBool updateNeeded = ( oldZoomStep != iCurrentZoomStep );
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if ( updateNeeded )
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{
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__VTPRINT( DEBUG_GEN, "VtUiZmCtl.upd" )
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ReportEventL( MCoeControlObserver::EEventStateChanged );
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}
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return updateNeeded;
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::StopZoom
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::StopZoom()
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{
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iZoomDirection = 0;
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::OfferKeyEventL
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// -----------------------------------------------------------------------------
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//
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TKeyResponse CVtUiZoomControl::OfferKeyEventL(
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const TKeyEvent& aKeyEvent,
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TEventCode aType )
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{
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TKeyResponse response = EKeyWasNotConsumed;
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if ( aKeyEvent.iScanCode == EStdKeyUpArrow ||
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aKeyEvent.iScanCode == EStdKeyDownArrow ||
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aKeyEvent.iCode == EKeyZoomIn ||
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aKeyEvent.iCode == EKeyZoomOut )
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{
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switch ( aType )
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{
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case EEventKey:
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{
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TInt direction = +1;
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if ( aKeyEvent.iScanCode == EStdKeyDownArrow ||
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aKeyEvent.iCode == EKeyZoomOut )
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{
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direction = -1;
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}
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if ( !aKeyEvent.iRepeats )
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{
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// Update start parameters.
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iZoomDirection = direction;
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iZoomStepStart = iCurrentZoomStep + direction;
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iZoomStepStart = Min( iZoomStepStart, iMaxZoomStep );
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iZoomStepStart = Max( iZoomStepStart, 0 );
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iZoomStartTime.UniversalTime();
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}
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(void)UpdateZoomL();
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}
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break;
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case EEventKeyUp:
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// Stop zooming.
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iZoomDirection = 0;
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break;
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default:
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// Do nothing.
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break;
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}
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response = EKeyWasConsumed;
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}
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return response;
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::HandleResourceChange
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::HandleResourceChange(
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TInt aType )
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{
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if ( aType == KAknsMessageSkinChange )
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{
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// We must refresh partial bitmap upon next redraw.
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iZoomMaskPartial = KErrNotFound;
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iZoomMaskRow = KErrNotFound;
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}
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CCoeControl::HandleResourceChange( aType );
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}
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// -----------------------------------------------------------------------------
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// CVtUiZoomControl::Draw
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// -----------------------------------------------------------------------------
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//
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void CVtUiZoomControl::Draw( const TRect& /*aRect*/ ) const
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{
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__VTPRINT( DEBUG_GEN, "VtUiZmCtl.Draw" )
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iBitmapManager.SetSizeAndColor(
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iZoomDirId,
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iZoomDirLayout.Rect().Size(),
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iZoomDirLayout.Color() );
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iBitmapManager.SetSize(
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iZoomAreaId,
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iZoomAreaLayout.Rect().Size() );
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iBitmapManager.SetSize(
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iZoomMinId,
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iZoomAreaLayout.Rect().Size() );
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iBitmapManager.SetSize(
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iZoomMaxId,
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iZoomAreaLayout.Rect().Size() );
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CFbsBitmap* maxBitmap = NULL;
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CFbsBitmap* minBitmap = NULL;
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CFbsBitmap* areaBitmap = NULL;
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iBitmapManager.GetBitmap( iZoomMaxId, maxBitmap );
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iBitmapManager.GetBitmap( iZoomMinId, minBitmap );
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iBitmapManager.GetBitmap( iZoomAreaId, areaBitmap );
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TInt full;
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TInt partial;
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TRect drawRect;
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TPoint drawPos;
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DetermineSteps( full, partial );
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if ( areaBitmap && partial && ( full < KVtUiZoomControlMaxSteps ) )
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{
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// First generate bitmaps, so that drawing can be done
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// quickly in sequence.
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GetPositionAndRect(
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drawPos,
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drawRect,
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full + 1 );
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if ( !GenerateZoomMaskBitmap(
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areaBitmap,
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partial,
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drawRect.iTl.iY,
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drawRect.Size() ) )
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{
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// If zoom mask generation fails, then we have no choice
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// than not to draw.
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partial = 0;
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}
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}
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CWindowGc& gc = SystemGc();
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gc.SetBrushStyle( CGraphicsContext::ENullBrush );
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// Draw zoom direction indicator:
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CFbsBitmap* zoomDirBitmap = NULL;
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CFbsBitmap* zoomDirMask = NULL;
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iBitmapManager.GetBitmaps( iZoomDirId, zoomDirBitmap, zoomDirMask );
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if ( zoomDirBitmap && zoomDirMask )
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{
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iZoomDirLayout.DrawImage( gc, zoomDirBitmap, zoomDirMask );
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}
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// Draw zoom indicator:
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if ( !areaBitmap )
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{
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// If area bitmap is invalid, then we have to return.
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return;
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}
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if ( maxBitmap )
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{
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// First, draw maximum area.
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for ( TInt index = KVtUiZoomControlMinSteps;
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index <= full;
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index++ )
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{
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GetPositionAndRect(
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drawPos,
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drawRect,
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index );
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gc.BitBltMasked(
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464 |
drawPos,
|
|
465 |
maxBitmap,
|
|
466 |
drawRect,
|
|
467 |
areaBitmap,
|
|
468 |
ETrue );
|
|
469 |
}
|
|
470 |
}
|
|
471 |
|
|
472 |
if ( minBitmap && ( full < KVtUiZoomControlMaxSteps ) )
|
|
473 |
{
|
|
474 |
// Then draw minimum area.
|
|
475 |
for ( TInt index = full + 1;
|
|
476 |
index <= KVtUiZoomControlMaxSteps;
|
|
477 |
index++ )
|
|
478 |
{
|
|
479 |
GetPositionAndRect(
|
|
480 |
drawPos,
|
|
481 |
drawRect,
|
|
482 |
index );
|
|
483 |
gc.BitBltMasked(
|
|
484 |
drawPos,
|
|
485 |
minBitmap,
|
|
486 |
drawRect,
|
|
487 |
areaBitmap,
|
|
488 |
ETrue );
|
|
489 |
}
|
|
490 |
|
|
491 |
if ( maxBitmap && partial && iZoomPartialMask )
|
|
492 |
{
|
|
493 |
// Finally draw partial area.
|
|
494 |
GetPositionAndRect(
|
|
495 |
drawPos,
|
|
496 |
drawRect,
|
|
497 |
full + 1 );
|
|
498 |
gc.BitBltMasked(
|
|
499 |
drawPos,
|
|
500 |
maxBitmap,
|
|
501 |
drawRect,
|
|
502 |
iZoomPartialMask->Bitmap(),
|
|
503 |
ETrue );
|
|
504 |
}
|
|
505 |
}
|
|
506 |
|
|
507 |
__VTPRINT( DEBUG_GEN, "VtUiZmCtl.Draw.ok" )
|
|
508 |
}
|
|
509 |
|
|
510 |
// -----------------------------------------------------------------------------
|
|
511 |
// CVtUiZoomControl::SizeChanged
|
|
512 |
// -----------------------------------------------------------------------------
|
|
513 |
//
|
|
514 |
void CVtUiZoomControl::SizeChanged()
|
|
515 |
{
|
|
516 |
AknsUtils::RegisterControlPosition( this );
|
|
517 |
|
|
518 |
TRect parent( Rect() );
|
|
519 |
TAknWindowLineLayout rect;
|
|
520 |
if ( parent.IsEmpty() )
|
|
521 |
{
|
|
522 |
return;
|
|
523 |
}
|
|
524 |
|
|
525 |
{
|
|
526 |
TAknLayoutRect& tmpRect = iZoomDirLayout;
|
|
527 |
VtUiLayout::GetZoomPaneLayout( rect );
|
|
528 |
tmpRect.LayoutRect( parent, rect );
|
|
529 |
parent = tmpRect.Rect();
|
|
530 |
iZoomPaneRect = parent;
|
|
531 |
}
|
|
532 |
|
|
533 |
VtUiLayout::GetZoomDirLayout( rect );
|
|
534 |
iZoomDirLayout.LayoutRect( parent, rect );
|
|
535 |
iBitmapManager.SetSizeAndColor(
|
|
536 |
iZoomDirId,
|
|
537 |
iZoomDirLayout.Rect().Size(),
|
|
538 |
iZoomDirLayout.Color() );
|
|
539 |
|
|
540 |
VtUiLayout::GetZoomAreaLayout( rect );
|
|
541 |
iZoomAreaLayout.LayoutRect( parent, rect );
|
|
542 |
iBitmapManager.SetSize(
|
|
543 |
iZoomAreaId,
|
|
544 |
iZoomAreaLayout.Rect().Size() );
|
|
545 |
iBitmapManager.SetSize(
|
|
546 |
iZoomMinId,
|
|
547 |
iZoomAreaLayout.Rect().Size() );
|
|
548 |
iBitmapManager.SetSize(
|
|
549 |
iZoomMaxId,
|
|
550 |
iZoomAreaLayout.Rect().Size() );
|
|
551 |
(void) CreateBitmaps();
|
|
552 |
}
|
|
553 |
|
|
554 |
// -----------------------------------------------------------------------------
|
|
555 |
// CVtUiZoomControl::PositionChanged
|
|
556 |
// -----------------------------------------------------------------------------
|
|
557 |
//
|
|
558 |
void CVtUiZoomControl::PositionChanged()
|
|
559 |
{
|
|
560 |
AknsUtils::RegisterControlPosition( this );
|
|
561 |
}
|
|
562 |
|
|
563 |
// -----------------------------------------------------------------------------
|
|
564 |
// CVtUiZoomControl::DetermineSteps
|
|
565 |
// -----------------------------------------------------------------------------
|
|
566 |
//
|
|
567 |
void CVtUiZoomControl::DetermineSteps(
|
|
568 |
TInt& aFullSteps,
|
|
569 |
TInt& aPartialStep ) const
|
|
570 |
{
|
|
571 |
aFullSteps = 1;
|
|
572 |
aPartialStep = 0;
|
|
573 |
|
|
574 |
TInt currentZoomStep = Max( Min( iCurrentZoomStep, iMaxZoomStep ), 0 );
|
|
575 |
|
|
576 |
if ( iMaxZoomStep > 0 )
|
|
577 |
{
|
|
578 |
TInt zoomDeltaSteps = 0;
|
|
579 |
TInt zoomDeltaMaxSteps = 0;
|
|
580 |
|
|
581 |
// Formula equals: x = ( N * ( y - 1 ) ) / 10.
|
|
582 |
|
|
583 |
aFullSteps = KVtUiZoomControlMinSteps;
|
|
584 |
const TInt divider =
|
|
585 |
KVtUiZoomControlMaxSteps - KVtUiZoomControlMinSteps;
|
|
586 |
for ( TInt row = KVtUiZoomControlMaxSteps - 1;
|
|
587 |
row >= KVtUiZoomControlMinSteps - 1;
|
|
588 |
row-- )
|
|
589 |
{
|
|
590 |
const TInt zoomStartSteps =
|
|
591 |
( iMaxZoomStep * row ) / divider;
|
|
592 |
const TInt previousZoomStartSteps =
|
|
593 |
( iMaxZoomStep * ( row - 1 ) ) / divider;
|
|
594 |
|
|
595 |
if ( ( currentZoomStep >= zoomStartSteps ) &&
|
|
596 |
( previousZoomStartSteps != zoomStartSteps ) )
|
|
597 |
{
|
|
598 |
aFullSteps = ( row + 1 );
|
|
599 |
zoomDeltaSteps = currentZoomStep - zoomStartSteps;
|
|
600 |
zoomDeltaMaxSteps = ( iMaxZoomStep * ( row + 1 ) ) / divider;
|
|
601 |
zoomDeltaMaxSteps -= zoomStartSteps;
|
|
602 |
break;
|
|
603 |
}
|
|
604 |
}
|
|
605 |
|
|
606 |
aPartialStep = 0;
|
|
607 |
if ( zoomDeltaSteps && zoomDeltaMaxSteps )
|
|
608 |
{
|
|
609 |
TInt64 partial( zoomDeltaSteps );
|
|
610 |
partial *= KVtUiZoomControlOne;
|
|
611 |
partial /= zoomDeltaMaxSteps;
|
|
612 |
|
|
613 |
partial >>= ( KVtUiZoomControlFixed - KVtUiZoomControlPartial );
|
|
614 |
aPartialStep = I64INT( partial );
|
|
615 |
}
|
|
616 |
}
|
|
617 |
}
|
|
618 |
|
|
619 |
// -----------------------------------------------------------------------------
|
|
620 |
// CVtUiZoomControl::GenerateZoomMaskBitmap
|
|
621 |
// -----------------------------------------------------------------------------
|
|
622 |
//
|
|
623 |
TBool CVtUiZoomControl::GenerateZoomMaskBitmap(
|
|
624 |
CFbsBitmap* aMaskBitmap,
|
|
625 |
const TInt aPartial,
|
|
626 |
const TInt aRow,
|
|
627 |
const TSize& aRowSize ) const
|
|
628 |
{
|
|
629 |
if ( iZoomPartialMask &&
|
|
630 |
( ( iZoomMaskPartial != aPartial ) ||
|
|
631 |
( iZoomMaskRow != aRow ) ) )
|
|
632 |
{
|
|
633 |
DoGenerateZoomMaskBitmap(
|
|
634 |
aMaskBitmap,
|
|
635 |
aPartial,
|
|
636 |
aRow,
|
|
637 |
aRowSize );
|
|
638 |
}
|
|
639 |
return ( iZoomPartialMask != NULL );
|
|
640 |
}
|
|
641 |
|
|
642 |
// -----------------------------------------------------------------------------
|
|
643 |
// CVtUiZoomControl::DoGenerateZoomMaskBitmap
|
|
644 |
// -----------------------------------------------------------------------------
|
|
645 |
//
|
|
646 |
void CVtUiZoomControl::DoGenerateZoomMaskBitmap(
|
|
647 |
CFbsBitmap* aMaskBitmap,
|
|
648 |
const TInt aPartial,
|
|
649 |
const TInt aRow,
|
|
650 |
const TSize& aRowSize ) const
|
|
651 |
{
|
|
652 |
CFbsBitGc* bitmapMaskGc = iZoomPartialMask->Context();
|
|
653 |
|
|
654 |
CFbsBitmap* shade = iZoomPartialShade->Bitmap();
|
|
655 |
CFbsBitGc* shadeGc = iZoomPartialShade->Context();
|
|
656 |
|
|
657 |
// Fill shade with aPartial.
|
|
658 |
shadeGc->SetPenStyle( CGraphicsContext::ENullPen );
|
|
659 |
shadeGc->SetBrushColor( TRgb::Gray256( aPartial ) );
|
|
660 |
shadeGc->SetBrushStyle( CGraphicsContext::ESolidBrush );
|
|
661 |
shadeGc->Clear();
|
|
662 |
|
|
663 |
// Now grab one row from iZoomAreaBitmap.
|
|
664 |
CFbsBitmap* mask = iZoomPartialShadeMask->Bitmap();
|
|
665 |
CFbsBitGc* maskGc = iZoomPartialShadeMask->Context();
|
|
666 |
|
|
667 |
// Clear with transparency.
|
|
668 |
maskGc->SetPenStyle( CGraphicsContext::ENullPen );
|
|
669 |
maskGc->SetBrushColor( TRgb::Gray2( 1 ) ); // transparency
|
|
670 |
maskGc->SetBrushStyle( CGraphicsContext::ESolidBrush );
|
|
671 |
maskGc->Clear();
|
|
672 |
|
|
673 |
maskGc->SetPenStyle( CGraphicsContext::ENullPen );
|
|
674 |
// Blit appropriate region from aMaskBitmap to maskGc.
|
|
675 |
maskGc->BitBlt(
|
|
676 |
TPoint( 0, aRow ),
|
|
677 |
aMaskBitmap,
|
|
678 |
TRect( TPoint( 0, aRow ), aRowSize ) );
|
|
679 |
|
|
680 |
// Now fill bitmapMask with black (= transparency).
|
|
681 |
bitmapMaskGc->SetPenStyle( CGraphicsContext::ENullPen );
|
|
682 |
bitmapMaskGc->SetBrushColor( TRgb::Gray256( KVtUiZoomTransparent ) );
|
|
683 |
bitmapMaskGc->SetBrushStyle( CGraphicsContext::ESolidBrush );
|
|
684 |
bitmapMaskGc->Clear();
|
|
685 |
|
|
686 |
// Then blit shade masked
|
|
687 |
TPoint origin;
|
|
688 |
TRect rect( origin, shade->SizeInPixels() );
|
|
689 |
|
|
690 |
bitmapMaskGc->BitBltMasked( origin, shade, rect, mask, ETrue );
|
|
691 |
|
|
692 |
iZoomMaskPartial = aPartial;
|
|
693 |
iZoomMaskRow = aRow;
|
|
694 |
}
|
|
695 |
|
|
696 |
// -----------------------------------------------------------------------------
|
|
697 |
// CVtUiZoomControl::CreateBitmaps
|
|
698 |
// -----------------------------------------------------------------------------
|
|
699 |
//
|
|
700 |
TInt CVtUiZoomControl::CreateBitmaps()
|
|
701 |
{
|
|
702 |
TRAPD( err, CreateBitmapsL() );
|
|
703 |
return err;
|
|
704 |
}
|
|
705 |
|
|
706 |
// -----------------------------------------------------------------------------
|
|
707 |
// CVtUiZoomControl::CreateBitmapsL
|
|
708 |
// -----------------------------------------------------------------------------
|
|
709 |
//
|
|
710 |
void CVtUiZoomControl::CreateBitmapsL()
|
|
711 |
{
|
|
712 |
TBool requiredToCreate = ETrue;
|
|
713 |
TSize requiredSize = SizeOfBitmap();
|
|
714 |
if ( iZoomPartialMask )
|
|
715 |
{
|
|
716 |
requiredToCreate =
|
|
717 |
( requiredSize != iZoomPartialMask->Bitmap()->SizeInPixels() );
|
|
718 |
}
|
|
719 |
|
|
720 |
if ( requiredToCreate )
|
|
721 |
{
|
|
722 |
iZoomMaskPartial = KErrNotFound;
|
|
723 |
iZoomMaskRow = KErrNotFound;
|
|
724 |
|
|
725 |
// Delete old ones away.
|
|
726 |
delete iZoomPartialMask;
|
|
727 |
iZoomPartialMask = NULL;
|
|
728 |
|
|
729 |
delete iZoomPartialShade;
|
|
730 |
iZoomPartialShade = NULL;
|
|
731 |
|
|
732 |
delete iZoomPartialShadeMask;
|
|
733 |
iZoomPartialShadeMask = NULL;
|
|
734 |
|
|
735 |
CBitmap* zoomPartialMask = new ( ELeave ) CBitmap;
|
|
736 |
CleanupStack::PushL( zoomPartialMask );
|
|
737 |
zoomPartialMask->ConstructL( requiredSize, EGray256 );
|
|
738 |
|
|
739 |
CBitmap* zoomPartialShade = new ( ELeave ) CBitmap;
|
|
740 |
CleanupStack::PushL( zoomPartialShade );
|
|
741 |
zoomPartialShade->ConstructL( requiredSize, EGray256 );
|
|
742 |
|
|
743 |
CBitmap* zoomPartialShadeMask = new ( ELeave ) CBitmap;
|
|
744 |
CleanupStack::PushL( zoomPartialShadeMask );
|
|
745 |
zoomPartialShadeMask->ConstructL( requiredSize, EGray2 );
|
|
746 |
|
|
747 |
// Pop zoomPartialShadeMask, zoomPartialShade & zoomPartialMask.
|
|
748 |
CleanupStack::Pop( 3, zoomPartialMask );
|
|
749 |
iZoomPartialMask = zoomPartialMask;
|
|
750 |
iZoomPartialShade = zoomPartialShade;
|
|
751 |
iZoomPartialShadeMask = zoomPartialShadeMask;
|
|
752 |
}
|
|
753 |
}
|
|
754 |
|
|
755 |
// -----------------------------------------------------------------------------
|
|
756 |
// CVtUiZoomControl::SizeOfBitmap
|
|
757 |
// -----------------------------------------------------------------------------
|
|
758 |
//
|
|
759 |
TSize CVtUiZoomControl::SizeOfBitmap() const
|
|
760 |
{
|
|
761 |
// Bitmaps fill the whole zoom area.
|
|
762 |
return iZoomAreaLayout.Rect().Size();
|
|
763 |
}
|
|
764 |
|
|
765 |
// -----------------------------------------------------------------------------
|
|
766 |
// CVtUiZoomControl::GetPositionAndRect
|
|
767 |
// -----------------------------------------------------------------------------
|
|
768 |
//
|
|
769 |
void CVtUiZoomControl::GetPositionAndRect(
|
|
770 |
TPoint& aPosition,
|
|
771 |
TRect& aSourceRect,
|
|
772 |
const TInt aZoomStep ) const
|
|
773 |
{
|
|
774 |
TAknWindowLineLayout rect;
|
|
775 |
TAknLayoutRect layout;
|
|
776 |
const TRect zoomAreaRect = iZoomAreaLayout.Rect();
|
|
777 |
const TRect& zoomParentRect = iZoomPaneRect;
|
|
778 |
|
|
779 |
VtUiLayout::GetZoomStepLayout(
|
|
780 |
rect,
|
|
781 |
aZoomStep );
|
|
782 |
layout.LayoutRect( zoomParentRect, rect );
|
|
783 |
aSourceRect = layout.Rect();
|
|
784 |
aPosition = aSourceRect.iTl;
|
|
785 |
|
|
786 |
aSourceRect.iTl -= zoomAreaRect.iTl;
|
|
787 |
aSourceRect.iBr -= zoomAreaRect.iTl;
|
|
788 |
}
|
|
789 |
|
|
790 |
// -----------------------------------------------------------------------------
|
|
791 |
// CVtUiZoomControl::CBitmap::CBitmap
|
|
792 |
// -----------------------------------------------------------------------------
|
|
793 |
//
|
|
794 |
CVtUiZoomControl::CBitmap::CBitmap()
|
|
795 |
{
|
|
796 |
}
|
|
797 |
|
|
798 |
// -----------------------------------------------------------------------------
|
|
799 |
// CVtUiZoomControl::CBitmap::ConstructL
|
|
800 |
// -----------------------------------------------------------------------------
|
|
801 |
//
|
|
802 |
void CVtUiZoomControl::CBitmap::ConstructL(
|
|
803 |
const TSize& aSize,
|
|
804 |
const TDisplayMode aMode )
|
|
805 |
{
|
|
806 |
CFbsBitmap* bitmap = new ( ELeave ) CFbsBitmap;
|
|
807 |
CleanupStack::PushL( bitmap );
|
|
808 |
|
|
809 |
User::LeaveIfError(
|
|
810 |
bitmap->Create( aSize, aMode ) );
|
|
811 |
|
|
812 |
CFbsBitmapDevice* device = CFbsBitmapDevice::NewL( bitmap );
|
|
813 |
CleanupStack::PushL( device );
|
|
814 |
|
|
815 |
CFbsBitGc* context = NULL;
|
|
816 |
User::LeaveIfError( device->CreateContext( context ) );
|
|
817 |
User::LeaveIfNull( context );
|
|
818 |
|
|
819 |
CleanupStack::Pop( device );
|
|
820 |
CleanupStack::Pop( bitmap );
|
|
821 |
|
|
822 |
iContext = context;
|
|
823 |
iDevice = device;
|
|
824 |
iBitmap = bitmap;
|
|
825 |
}
|
|
826 |
|
|
827 |
// -----------------------------------------------------------------------------
|
|
828 |
// CVtUiZoomControl::CBitmap::~CBitmap
|
|
829 |
// -----------------------------------------------------------------------------
|
|
830 |
//
|
|
831 |
CVtUiZoomControl::CBitmap::~CBitmap()
|
|
832 |
{
|
|
833 |
delete iContext;
|
|
834 |
delete iDevice;
|
|
835 |
delete iBitmap;
|
|
836 |
}
|
|
837 |
|
|
838 |
// -----------------------------------------------------------------------------
|
|
839 |
// CVtUiZoomControl::CBitmap::Bitmap
|
|
840 |
// -----------------------------------------------------------------------------
|
|
841 |
//
|
|
842 |
inline CFbsBitmap* CVtUiZoomControl::CBitmap::Bitmap() const
|
|
843 |
{
|
|
844 |
return iBitmap;
|
|
845 |
}
|
|
846 |
|
|
847 |
// -----------------------------------------------------------------------------
|
|
848 |
// CVtUiZoomControl::CBitmap::Context
|
|
849 |
// -----------------------------------------------------------------------------
|
|
850 |
//
|
|
851 |
inline CFbsBitGc* CVtUiZoomControl::CBitmap::Context() const
|
|
852 |
{
|
|
853 |
return iContext;
|
|
854 |
}
|
|
855 |
|
|
856 |
// End of File
|