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/*
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* Copyright (c) 2008-2009 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: Implementation of Zoom Event Handler
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*
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*/
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// Avkon
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#include <eikon.hrh>
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// Antariksh
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#include <alf/alfutil.h> // AlfUtil
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#include <mul/mulevent.h> // For Slider events
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//Photos Headers
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#include <glxtracer.h> // For Tracer
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#include <glxlog.h> // For Log
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#include <mglxuicommandhandler.h> // For MGlxUiCommandHandler
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#include <glxzoomeventhandler.h>
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#include <glxzoommathsengine.h>
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#include <glxzoomcontrol.h>
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#include <glxzoomeventhandler.h>
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// LOCAL CONSTANTS AND MACROS
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const TInt KTimerLengthInMicroseconds = 100000 ;
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const TInt KGlxScreenTimeout = 2000000 ; // 2 seconds timer for UI On/Off
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const TInt KGlxAnimationTimeDrag = 30 ;
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const TInt KGlxAnimationTimekeyPan = 50 ;
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const TInt KGlxZoomPanInc = 5 ; // Min number of pixels panned in one keypress. This value is incremented exponentially by multiples of iPanFactor
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// Anime Speed changes in inverse proportion to KGlxAnimeFrameInmS.
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// Steps increase with KGlxAnimeFrameCount.
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// Total time taken = (KGlxAnimeFrameInmS * KGlxAnimeFrameCount)microseconds.
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const TInt KGlxAnimeFrameInmS = 10000 ;
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const TInt KGlxAnimeFrameCount = 10 ;
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const TInt KGlxPanInertiaFrameInmS = 20000 ;
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// The (neutral) zoom factor above which all zooms caused are zoom-ins and below , zoom-outs.
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const TInt KGlxNeutralZoomFactor = 100;
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using namespace GestureHelper;
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// ============================ CGlxZoomPanEventHandler===============================
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// ============================ MEMBER FUNCTIONS ===============================
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//----------------------------------------------------------------------------------
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// NewL
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//----------------------------------------------------------------------------------
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//
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CGlxZoomPanEventHandler* CGlxZoomPanEventHandler::NewL(
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MGlxZoomEventHandlers& aZoomEventHandler)
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{
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TRACER("CGlxZoomPanEventHandler::NewL");
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CGlxZoomPanEventHandler* self = new (ELeave) CGlxZoomPanEventHandler(
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aZoomEventHandler);
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CleanupStack::PushL(self);
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self->ConstructL();
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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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// CGlxZoomPanEventHandler constructor
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//----------------------------------------------------------------------------------
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//
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CGlxZoomPanEventHandler::CGlxZoomPanEventHandler(
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MGlxZoomEventHandlers& aZoomEventHandler) :
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iZoomEventHandler(aZoomEventHandler), iPrevPinchPercentage(
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KGlxNeutralZoomFactor)
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{
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TRACER("CGlxZoomPanEventHandler::CGlxZoomPanEventHandler()");
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// No Implementation
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}
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//----------------------------------------------------------------------------------
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// CGlxZoomPanEventHandlerDestructor
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//----------------------------------------------------------------------------------
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//
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CGlxZoomPanEventHandler::~CGlxZoomPanEventHandler()
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{
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TRACER("CGlxZoomPanEventHandler::~CGlxZoomPanEventHandler()");
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if(iZoomPanTimer)
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{
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CancelZoomPanTimer();
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delete iZoomPanTimer;
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iZoomPanTimer = NULL;
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}
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if (iUiTimer)
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{
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CancelUITimer();
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delete iUiTimer;
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iUiTimer = NULL;
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}
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if(iZoomAnimationTimer)
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{
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CancelAnimationTimer();
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delete iZoomAnimationTimer;
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iZoomAnimationTimer = NULL;
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}
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}
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//----------------------------------------------------------------------------------
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// CGlxZoomPanEventHandler Constructl
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::ConstructL()
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{
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TRACER("CGlxZoomPanEventHandler::ConstructL()");
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if(!iUiTimer)
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{
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iUiTimer = CPeriodic::NewL(EPriorityNormal);
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}
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if(!iZoomPanTimer)
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{
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iZoomPanTimer = CPeriodic::NewL(EPriorityNormal);
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}
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if(!iZoomAnimationTimer)
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{
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iZoomAnimationTimer = CPeriodic::NewL(EPriorityNormal);
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}
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}
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//----------------------------------------------------------------------------------
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// CGlxZoomPanEventHandler SetupAnimatedZoom
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//----------------------------------------------------------------------------------
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//
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// Todo: Combine logics of setting up animated zoom and pan.
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void CGlxZoomPanEventHandler::SetupAnimatedZoom(TZoomMode aZoomMode,
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TPoint* /*aZoomFocus*/)
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{
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TRACER("CGlxZoomPanEventHandler::SetupAnimatedZoom");
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iTargetAnimatedZoomRatio = (iMaxZoomRatio + iMinZoomRatio) / 2;
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CancelAnimationTimer();
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CancelUITimer();
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//ToDo: Verify this with images slightly smaller or slightly larger than fullscreen size.
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if (EZoomIn == aZoomMode)
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{
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// the '1+' is to take care of the situation when there the rest of the equation returns something betn 0 and 1
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iZoomPerInterval = 1 + (iTargetAnimatedZoomRatio - iZoomRatio)
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/ KGlxAnimeFrameCount;
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}
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else
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{
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iZoomPerInterval = 1 + (iZoomRatio - iMinZoomRatio)
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/ KGlxAnimeFrameCount;
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}
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if (1 < iZoomPerInterval)
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{
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iIsZoomingInAnimatedState = ETrue;
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switch (aZoomMode)
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{
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case EZoomIn:
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iAnimatedZoomMode = EAnimationModeZoomIn;
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break;
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case EZoomOut:
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iAnimatedZoomMode = EAnimationModeZoomOut;
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break;
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}
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iZoomAnimationTimer->Start(0, KGlxAnimeFrameInmS, TCallBack(
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ActivationIntervalElapsed, (TAny*) this));
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}
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else
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// Cant zoom in/out at less than 1 percent. so directly jump to the target zoom ratio.
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// This happens in cases where there is not much difference between the source and target zoom levels
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{
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TInt targetZoomRatio = 0;
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if (EZoomIn == aZoomMode)
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{
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targetZoomRatio = iTargetAnimatedZoomRatio;
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}
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else
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{
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targetZoomRatio = iMinZoomRatio;
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}
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Zoom(targetZoomRatio, 0);
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}
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}
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//----------------------------------------------------------------------------------
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// CGlxZoomPanEventHandler ActivationIntervalElapsed
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//----------------------------------------------------------------------------------
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//
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TInt CGlxZoomPanEventHandler::ActivationIntervalElapsed(TAny* aPtr)
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{
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TRACER("CGlxZoomPanEventHandler::ActivationIntervalElapsed");
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CGlxZoomPanEventHandler* self = static_cast<CGlxZoomPanEventHandler*>(aPtr);
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self->NextStepAnimatedZoom();
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return 0;
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}
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//----------------------------------------------------------------------------------
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// CGlxZoomPanEventHandler NextStepAmimatedZoom
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::NextStepAnimatedZoom()
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{
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TRACER("CGlxZoomPanEventHandler::NextStepAmimatedZoom");
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TInt targetZoomLevel = 0 ;
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if (EAnimationModeZoomIn == iAnimatedZoomMode)
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{
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targetZoomLevel = iZoomRatio + iZoomPerInterval;
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}
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else
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{
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targetZoomLevel = iZoomRatio - iZoomPerInterval;
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}
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Zoom(targetZoomLevel, 0, EZoomIn, &iZoomFocus );
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// The boundary conditions.
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if (((targetZoomLevel >= iTargetAnimatedZoomRatio)
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&& (EAnimationModeZoomIn == iAnimatedZoomMode))
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|| ((targetZoomLevel <= iMinZoomRatio)
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&& (EAnimationModeZoomOut == iAnimatedZoomMode)))
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{
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iIsZoomingInAnimatedState = EFalse;
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CancelAnimationTimer();
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TSize screensize = iMathsEngine.ScreenSize();
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iZoomFocus = TPoint(screensize.iWidth>>1,screensize.iHeight>>1) ;
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//start the timer here after the animation is complete
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if(EUiOn == iZoomUiState && iZoomActivated)
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{
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ShowScreenFurniture(KGlxScreenTimeout);
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}
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}
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}
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//----------------------------------------------------------------------------------
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// StartPanTimer:Starts the Pan timer for continous Panning
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::StartPanTimer()
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{
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TRACER("CGlxZoomPanEventHandler::StartPanTimer ");
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//After Panning in one direction for a long time by holding the key and
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//then if panning is started in another direction,the panning will be done in more pixels.
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GLX_LOG_INFO("CGlxZoomPanEventHandler::StartPanTimer: Cancelling timers ");
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if (iZoomPanTimer->IsActive())
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{
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iZoomPanTimer->Cancel();
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}
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iZoomPanTimer->Start( 0,
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KTimerLengthInMicroseconds,
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TCallBack( PanIntervalExpired,(TAny*)this) );
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}
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//----------------------------------------------------------------------------------
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// CancelZoomPanTimer: Cancels the Zoom timer for continous zoom
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::CancelZoomPanTimer()
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{
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TRACER("CGlxZoomPanEventHandler::CancelZoomPanTimer ");
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if (iZoomPanTimer->IsActive())
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{
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iZoomPanTimer->Cancel();
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}
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}
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//----------------------------------------------------------------------------------
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// CancelUITimer
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::CancelUITimer()
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{
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TRACER("CGlxZoomPanEventHandler::CancelUITimer ");
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if (iUiTimer->IsActive())
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{
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iUiTimer->Cancel();
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}
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}
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//----------------------------------------------------------------------------------
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// CancelUITimer
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::CancelAnimationTimer()
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{
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TRACER("CGlxZoomPanEventHandler::CancelAnimationTimer ");
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// This will set the timer to false if it is being used for zoom. For Pan
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// this flag is immaterial
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iIsZoomingInAnimatedState = EFalse;
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if (iZoomAnimationTimer->IsActive())
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{
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iZoomAnimationTimer->Cancel();
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}
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}
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//----------------------------------------------------------------------------------
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// StartUITimer
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//----------------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::StartUITimer(TTimeIntervalMicroSeconds32 aDelay,
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TTimeIntervalMicroSeconds32 anInterval,
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TCallBack aCallBack)
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{
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TRACER("CGlxZoomPanEventHandler::StartUITimer ");
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if (iUiTimer->IsActive())
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{
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iUiTimer->Cancel();
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}
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iUiTimer->Start(aDelay,anInterval,aCallBack);
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}
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// -----------------------------------------------------------------------------
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// HandlekeyEvents:This function handles the key Events.
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// -----------------------------------------------------------------------------
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//
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TBool CGlxZoomPanEventHandler::HandlekeyEvents(const TAlfEvent &aEvent)
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{
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TRACER("CGlxZoomPanEventHandler::HandlekeyEvents()");
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GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandlekeyEvents.Scancode = %d",
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aEvent.KeyEvent().iScanCode);
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TBool consumed = EFalse;
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if (!iIsZoomingInAnimatedState)
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{
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switch (aEvent.KeyEvent().iScanCode)
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{
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case EStdKeyDevice10: //Listen to EStdKeyDevice10 as EKeyLeftUpArrow key is mapped to TKeyCode::EKeyDevice10 for which TStdScancode is EStdKeyDevice10
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case EKeyLeftUpArrow :
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case EStdKeyDevice13: //Listen to EStdKeyDevice13 as EKeyLeftDownArrow key is mapped to TKeyCode::EKeyDevice13 for which TStdScancode is EStdKeyDevice13
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case EKeyLeftDownArrow :
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case EStdKeyDevice11://Listen to EStdKeyDevice11 as EKeyRightUpArrow key is mapped to TKeyCode::EKeyDevice11 for which TStdScancode is EStdKeyDevice11
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case EKeyRightUpArrow :
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case EStdKeyDevice12: //Listen to EStdKeyDevice12 as EKeyRightDownArrow key is mapped to TKeyCode::EKeyDevice12 for which TStdScancode is EStdKeyDevice12
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case EKeyRightDownArrow :
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case EStdKeyLeftArrow :
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case EStdKeyRightArrow :
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case EStdKeyUpArrow :
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case EStdKeyDownArrow :
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{
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HandlePanKey(aEvent);
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consumed = ETrue;
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}
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break;
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case EStdKeyDevice0:
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case EStdKeyDevice1:
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case EStdKeyDevice3:
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{
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//Center button/MSK changes the UI State
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if (aEvent.Code() == EEventKeyDown)
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{
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if (EUiOff == iZoomUiState )
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{
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ShowScreenFurniture(KGlxScreenTimeout);
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}
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else
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{
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HideScreenFurniture();
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}
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}
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consumed = ETrue;
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}
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break;
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//Listen EStdKeyApplicationC as EKeyZoomIn key is mapped to TKeyCode:: EKeyApplicationC for which TStdScancode is EStdKeyApplicatoinC
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case EStdKeyApplicationC :
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{
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HandleZoomKey(EZoomIn ,aEvent.Code()) ;
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consumed = ETrue;
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break ;
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}
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//Listen EStdKeyApplicationD as EKeyZoomOut key is mapped to TKeyCode:: EKeyApplicationD for which TStdScancode is EStdKeyApplicatoinD
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case EStdKeyApplicationD :
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{
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HandleZoomKey(EZoomOut,aEvent.Code());
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consumed = ETrue;
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break ;
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}
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default:
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break;
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}
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}
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return consumed;
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}
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// -----------------------------------------------------------------------------
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// HandleZoomKey:Zooms the image on zoom stripe action.
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// -----------------------------------------------------------------------------
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//
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void CGlxZoomPanEventHandler::HandleZoomKey(TZoomMode aZoomMode,
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TEventCode aEventCode)
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{
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TRACER("CGlxZoomPanEventHandler::HandleZoomKey ");
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if ( iZoomActivated )
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{
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switch(aEventCode)
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{
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case EEventKey :
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{
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iZoomMode = aZoomMode ;
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Zoom(0, 0, aZoomMode) ;
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ShowScreenFurniture(KGlxScreenTimeout);
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break ;
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}
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default :
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436 |
break ;
|
|
437 |
}
|
|
438 |
}
|
|
439 |
}
|
|
440 |
|
|
441 |
// -----------------------------------------------------------------------------
|
|
442 |
// SetupPanOperation: start the pan operation for Key based pan.
|
|
443 |
// -----------------------------------------------------------------------------
|
|
444 |
//
|
|
445 |
void CGlxZoomPanEventHandler::SetupPanOperation(TPoint& aPanDirection)
|
|
446 |
{
|
|
447 |
TRACER("CGlxZoomPanEventHandler::SetupPanOperation ");
|
|
448 |
|
|
449 |
iPanDirection = TPoint(aPanDirection);
|
|
450 |
if(EUiOn == iZoomUiState )
|
|
451 |
{
|
|
452 |
HideScreenFurniture();
|
|
453 |
}
|
|
454 |
|
|
455 |
StartPanTimer();
|
|
456 |
|
|
457 |
iMathsEngine.SetupPanOperation();
|
|
458 |
}
|
|
459 |
|
|
460 |
// -----------------------------------------------------------------------------
|
|
461 |
// HandlePanKey :handles the keys related to pan and starts the pan Timer
|
|
462 |
// -----------------------------------------------------------------------------
|
|
463 |
//
|
|
464 |
TBool CGlxZoomPanEventHandler::HandlePanKey( const TAlfEvent &aEvent )
|
|
465 |
{
|
|
466 |
TRACER("CGlxZoomPanEventHandler::HandlePanKey ");
|
|
467 |
|
|
468 |
TSize imageVirtualSize = iMathsEngine.ImageVirtualSize();
|
|
469 |
TSize screenSize = iMathsEngine.ScreenSize();
|
|
470 |
TBool safeToPan = EFalse ;
|
|
471 |
TPoint panDirection(0,0);
|
|
472 |
TBool handled = EFalse;
|
|
473 |
|
|
474 |
if ( aEvent.Code() == EEventKeyDown )
|
|
475 |
{
|
|
476 |
//if height and/or width of the zoomed image is greater than the screen height and screen width ,
|
|
477 |
//then this paning should be posssible
|
|
478 |
switch(aEvent.KeyEvent().iScanCode )
|
|
479 |
{
|
|
480 |
case EStdKeyDevice10:
|
|
481 |
case EKeyLeftUpArrow:
|
|
482 |
{
|
|
483 |
if ((imageVirtualSize.iHeight>screenSize.iHeight)
|
|
484 |
&&(imageVirtualSize.iWidth > screenSize.iWidth))
|
|
485 |
{
|
|
486 |
safeToPan = ETrue;
|
|
487 |
panDirection = TPoint(-KGlxZoomPanInc, -KGlxZoomPanInc);
|
|
488 |
}
|
|
489 |
}
|
|
490 |
break;
|
|
491 |
case EStdKeyDevice11:
|
|
492 |
case EKeyRightUpArrow:
|
|
493 |
{
|
|
494 |
if ((imageVirtualSize.iHeight>screenSize.iHeight)
|
|
495 |
&&(imageVirtualSize.iWidth > screenSize.iWidth))
|
|
496 |
{
|
|
497 |
safeToPan = ETrue;
|
|
498 |
panDirection = TPoint(KGlxZoomPanInc, -KGlxZoomPanInc);
|
|
499 |
}
|
|
500 |
}
|
|
501 |
break;
|
|
502 |
case EStdKeyDevice12:
|
|
503 |
case EKeyLeftDownArrow:
|
|
504 |
{
|
|
505 |
if ((imageVirtualSize.iHeight>screenSize.iHeight)
|
|
506 |
&&(imageVirtualSize.iWidth > screenSize.iWidth))
|
|
507 |
{
|
|
508 |
safeToPan = ETrue;
|
|
509 |
panDirection = TPoint(-KGlxZoomPanInc, KGlxZoomPanInc);
|
|
510 |
}
|
|
511 |
}
|
|
512 |
break;
|
|
513 |
case EStdKeyDevice13:
|
|
514 |
case EKeyRightDownArrow:
|
|
515 |
{
|
|
516 |
if ((imageVirtualSize.iHeight>screenSize.iHeight)
|
|
517 |
&&(imageVirtualSize.iWidth > screenSize.iWidth))
|
|
518 |
{
|
|
519 |
safeToPan = ETrue;
|
|
520 |
panDirection = TPoint(KGlxZoomPanInc, KGlxZoomPanInc);
|
|
521 |
}
|
|
522 |
}
|
|
523 |
break;
|
|
524 |
case EStdKeyUpArrow:
|
|
525 |
{
|
|
526 |
if( (imageVirtualSize.iHeight ) > screenSize.iHeight )
|
|
527 |
{
|
|
528 |
safeToPan = ETrue;
|
|
529 |
panDirection = TPoint(0, -KGlxZoomPanInc);
|
|
530 |
}
|
|
531 |
}
|
|
532 |
break;
|
|
533 |
case EStdKeyDownArrow:
|
|
534 |
{
|
|
535 |
if( (imageVirtualSize.iHeight ) > screenSize.iHeight )
|
|
536 |
{
|
|
537 |
safeToPan = ETrue;
|
|
538 |
panDirection = TPoint(0, KGlxZoomPanInc);
|
|
539 |
}
|
|
540 |
}
|
|
541 |
break;
|
|
542 |
case EStdKeyLeftArrow:
|
|
543 |
{
|
|
544 |
if( (imageVirtualSize.iWidth ) > screenSize.iWidth )
|
|
545 |
{
|
|
546 |
safeToPan = ETrue;
|
|
547 |
panDirection = TPoint(-KGlxZoomPanInc, 0);
|
|
548 |
}
|
|
549 |
}
|
|
550 |
break;
|
|
551 |
case EStdKeyRightArrow:
|
|
552 |
{
|
|
553 |
if ((imageVirtualSize.iWidth ) > screenSize.iWidth )
|
|
554 |
{
|
|
555 |
safeToPan = ETrue;
|
|
556 |
panDirection = TPoint(KGlxZoomPanInc, 0);
|
|
557 |
}
|
|
558 |
}
|
|
559 |
break;
|
|
560 |
default:
|
|
561 |
break;
|
|
562 |
}
|
|
563 |
if (safeToPan)
|
|
564 |
{
|
|
565 |
SetupPanOperation(panDirection);
|
|
566 |
handled = ETrue;
|
|
567 |
}
|
|
568 |
}
|
|
569 |
else if ( aEvent.Code() == EEventKeyUp)
|
|
570 |
{
|
|
571 |
// destroy the Pan infrastructure
|
|
572 |
// Reset the PanDirection and cancel the pan timers.
|
|
573 |
CancelZoomPanTimer();
|
|
574 |
iPanDirection = TPoint(0, 0);
|
|
575 |
handled = ETrue;
|
|
576 |
}
|
|
577 |
return handled;
|
|
578 |
}
|
|
579 |
|
|
580 |
|
|
581 |
// -----------------------------------------------------------------------------
|
|
582 |
// HandleDragEvent
|
|
583 |
// -----------------------------------------------------------------------------
|
|
584 |
//
|
|
585 |
void CGlxZoomPanEventHandler::HandleDragEvent(
|
|
586 |
const GestureHelper::MGestureEvent& aEvent)
|
|
587 |
{
|
|
588 |
TRACER("CGlxZoomPanEventHandler::HandleDragEvent(GestureHelper::MGestureEvent&)");
|
|
589 |
|
|
590 |
// Ignore events when we are animating in Zoom
|
|
591 |
if (iIsZoomingInAnimatedState)
|
|
592 |
{
|
|
593 |
return;
|
|
594 |
}
|
|
595 |
|
|
596 |
TPoint startPos = aEvent.StartPos();
|
|
597 |
TPoint currPos = aEvent.CurrentPos();
|
|
598 |
|
|
599 |
|
|
600 |
// This means a new gesture has just started.
|
|
601 |
if (startPos != iPreviousDragStartPosition)
|
|
602 |
{
|
|
603 |
iPreviousPointerPosition = startPos;
|
|
604 |
}
|
|
605 |
|
|
606 |
TPoint offset((iPreviousPointerPosition.iX - currPos.iX),
|
|
607 |
(iPreviousPointerPosition.iY - currPos.iY));
|
|
608 |
|
|
609 |
HideScreenFurniture();
|
|
610 |
|
|
611 |
TPoint topLeftCorner(0,0);
|
|
612 |
iMathsEngine.Pan(offset, topLeftCorner, EGlxPanIncrementUniform);
|
|
613 |
|
|
614 |
iZoomEventHandler.HandleViewPortParametersChanged(topLeftCorner,
|
|
615 |
KGlxAnimationTimeDrag);
|
|
616 |
|
|
617 |
iPreviousPointerPosition = currPos ;
|
|
618 |
iPreviousDragStartPosition = startPos;
|
|
619 |
}
|
|
620 |
|
|
621 |
// -----------------------------------------------------------------------------
|
|
622 |
// HandleGestureReleased
|
|
623 |
// -----------------------------------------------------------------------------
|
|
624 |
//
|
|
625 |
void CGlxZoomPanEventHandler::HandleGestureReleased(
|
|
626 |
const GestureHelper::MGestureEvent& /*aEvent*/)
|
|
627 |
{
|
|
628 |
TRACER("CGlxZoomPanEventHandler::HandleGestureReleasedEvent(const GestureHelper::MGestureEvent& )");
|
|
629 |
|
|
630 |
if ( (EGestureSwipeLeft == iPreviousGestureCode)
|
|
631 |
||(EGestureSwipeRight == iPreviousGestureCode)
|
|
632 |
||(EGestureSwipeUp == iPreviousGestureCode)
|
|
633 |
||(EGestureSwipeDown == iPreviousGestureCode)
|
|
634 |
)
|
|
635 |
{
|
|
636 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandleGestureReleased: Previous Gesture Code [%d]" , iPreviousGestureCode);
|
|
637 |
SetupAnimatedPan();
|
|
638 |
}
|
|
639 |
}
|
|
640 |
|
|
641 |
void CGlxZoomPanEventHandler::SetupAnimatedPan()
|
|
642 |
{
|
|
643 |
TRACER("CGlxZoomPanEventHandler::SetupAnimatedPan");
|
|
644 |
|
|
645 |
CancelAnimationTimer();
|
|
646 |
|
|
647 |
iZoomAnimationTimer->Start( KGlxPanInertiaFrameInmS,
|
|
648 |
KGlxPanInertiaFrameInmS,
|
|
649 |
TCallBack( PanInertiaFrameElapsed,(TAny*)this) );
|
|
650 |
|
|
651 |
}
|
|
652 |
|
|
653 |
|
|
654 |
TInt CGlxZoomPanEventHandler::PanInertiaFrameElapsed(TAny* aPtr)
|
|
655 |
{
|
|
656 |
TRACER("CGlxZoomPanEventHandler::PanInertiaFrameElapsed");
|
|
657 |
|
|
658 |
CGlxZoomPanEventHandler* self = static_cast<CGlxZoomPanEventHandler*>(aPtr);
|
|
659 |
|
|
660 |
self->NextStepInerticPan();
|
|
661 |
return 0;
|
|
662 |
|
|
663 |
}
|
|
664 |
|
|
665 |
|
|
666 |
void CGlxZoomPanEventHandler::NextStepInerticPan()
|
|
667 |
{
|
|
668 |
TRACER("CGlxZoomPanEventHandler::NextStepInerticPan");
|
|
669 |
|
|
670 |
TPoint inertiaOffset = iMathsEngine.LastPanOffset();
|
|
671 |
|
|
672 |
if ( (10 >= Abs(inertiaOffset.iX )) && (10 >= Abs(inertiaOffset.iY) ))
|
|
673 |
{
|
|
674 |
CancelAnimationTimer();
|
|
675 |
}
|
|
676 |
else
|
|
677 |
{
|
|
678 |
TPoint topLeftCorner(0, 0);
|
|
679 |
TBool thresholdReached = EFalse;
|
|
680 |
iMathsEngine.Pan(inertiaOffset, topLeftCorner,
|
|
681 |
EGlxPanIncrementInertic, &thresholdReached);
|
|
682 |
|
|
683 |
iZoomEventHandler.HandleViewPortParametersChanged(topLeftCorner,
|
|
684 |
KGlxAnimationTimeDrag);
|
|
685 |
|
|
686 |
// we dont want to continue animated PAN if we have reached one end of the image.
|
|
687 |
if (thresholdReached)
|
|
688 |
{
|
|
689 |
CancelAnimationTimer();
|
|
690 |
}
|
|
691 |
}
|
|
692 |
}
|
|
693 |
|
|
694 |
void CGlxZoomPanEventHandler::SetPreviousEventCode(const TGestureCode aCode )
|
|
695 |
{
|
|
696 |
TRACER("CGlxZoomPanEventHandler::SetPreviousEventCode(const TGestureCode aCode )");
|
|
697 |
|
|
698 |
iPreviousGestureCode = aCode;
|
|
699 |
}
|
|
700 |
|
|
701 |
// -----------------------------------------------------------------------------
|
|
702 |
// HandlePinchEvent
|
|
703 |
// -----------------------------------------------------------------------------
|
|
704 |
//
|
|
705 |
void CGlxZoomPanEventHandler::HandlePinchEventL(
|
|
706 |
const GestureHelper::MGestureEvent& aEvent)
|
|
707 |
{
|
|
708 |
TRACER("CGlxZoomPanEventHandler::HandlePinchEvent(GestureHelper::MGestureEvent&)");
|
|
709 |
|
|
710 |
// Ignore events when we are animating in Zoom
|
|
711 |
if (iIsZoomingInAnimatedState)
|
|
712 |
{
|
|
713 |
return;
|
|
714 |
}
|
|
715 |
|
|
716 |
TPoint pinchFocus = aEvent.PinchCentrePoint();
|
|
717 |
// Wrong convention in variable nomenclature but better than
|
|
718 |
// ratioInPercentOfChangeInPinchDistance which is incidentally correct
|
|
719 |
TInt pinchPercentage = aEvent.PinchPercent();
|
|
720 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandlePinchEventL: Percentage [%d]" , pinchPercentage);
|
|
721 |
GLX_LOG_INFO2("CGlxZoomPanEventHandler::HandlePinchEventL: Pinch Focus [%d, %d]" , pinchFocus.iX, pinchFocus.iY);
|
|
722 |
|
|
723 |
if (( iPrevPinchPercentage >= KGlxNeutralZoomFactor ) &&
|
|
724 |
( pinchPercentage < KGlxNeutralZoomFactor ))
|
|
725 |
{
|
|
726 |
iPrevPinchPercentage = pinchPercentage ;
|
|
727 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandlePinchEventL: Pinch Ignored. Previous pinch factor = %d", iPrevPinchPercentage );
|
|
728 |
//This will result in we ignoring this event
|
|
729 |
pinchPercentage = KGlxNeutralZoomFactor;
|
|
730 |
}
|
|
731 |
else
|
|
732 |
{
|
|
733 |
iPrevPinchPercentage = pinchPercentage ;
|
|
734 |
}
|
|
735 |
|
|
736 |
// pinchPercentage == 100 => No change in finger distance => No Zoom.
|
|
737 |
// A negative Pinch percentage signifies an error in calculations.
|
|
738 |
// So NOT handling these
|
|
739 |
if ( (pinchPercentage != KGlxNeutralZoomFactor)
|
|
740 |
&& (pinchPercentage > 0) )
|
|
741 |
{
|
|
742 |
Zoom(0, pinchPercentage, EZoomIn, &pinchFocus);
|
|
743 |
}
|
|
744 |
|
|
745 |
HideScreenFurniture();
|
|
746 |
}
|
|
747 |
|
|
748 |
// -----------------------------------------------------------------------------
|
|
749 |
// HandleDoubleTap
|
|
750 |
// -----------------------------------------------------------------------------
|
|
751 |
//
|
|
752 |
void CGlxZoomPanEventHandler::HandleDoubleTap(const GestureHelper::MGestureEvent& /*aEvent*/ )
|
|
753 |
{
|
|
754 |
TRACER("CGlxZoomPanEventHandler::HandleDoubleTap(GestureHelper::MGestureEvent&)");
|
|
755 |
|
|
756 |
// Ignore events when we are animating in Zoom
|
|
757 |
if (iIsZoomingInAnimatedState)
|
|
758 |
{
|
|
759 |
return;
|
|
760 |
}
|
|
761 |
|
|
762 |
SetupAnimatedZoom(EZoomOut);
|
|
763 |
}
|
|
764 |
|
|
765 |
// -----------------------------------------------------------------------------
|
|
766 |
// HandleSingleTap
|
|
767 |
// -----------------------------------------------------------------------------
|
|
768 |
//
|
|
769 |
void CGlxZoomPanEventHandler::HandleSingleTap(const GestureHelper::MGestureEvent& /*aEvent*/ )
|
|
770 |
{
|
|
771 |
TRACER("CGlxZoomControl::HandleSingleTap(GestureHelper::MGestureEvent&)");
|
|
772 |
|
|
773 |
// Ignore events when we are animating in Zoom
|
|
774 |
if (iIsZoomingInAnimatedState)
|
|
775 |
{
|
|
776 |
return;
|
|
777 |
}
|
|
778 |
|
|
779 |
if (EUiOff == iZoomUiState)
|
|
780 |
{
|
|
781 |
ShowScreenFurniture(KGlxScreenTimeout);
|
|
782 |
}
|
|
783 |
else{
|
|
784 |
HideScreenFurniture();
|
|
785 |
}
|
|
786 |
}
|
|
787 |
|
|
788 |
// ---------------------------------------------------------------------------
|
|
789 |
// UiTimeOut: Hides the screen furniture once the Timeout happens
|
|
790 |
// ---------------------------------------------------------------------------
|
|
791 |
//
|
|
792 |
TInt CGlxZoomPanEventHandler::UiTimeOut(TAny* aSelf)
|
|
793 |
{
|
|
794 |
TRACER("CGlxZoomPanEventHandler::UiTimeOut");
|
|
795 |
if(aSelf)
|
|
796 |
{
|
|
797 |
CGlxZoomPanEventHandler* self = static_cast <CGlxZoomPanEventHandler*> (aSelf);
|
|
798 |
//retreive the UI state.
|
|
799 |
if(EUiOn == self->iZoomUiState)
|
|
800 |
{
|
|
801 |
self->HideScreenFurniture();
|
|
802 |
}
|
|
803 |
}
|
|
804 |
return KErrNone;
|
|
805 |
}
|
|
806 |
|
|
807 |
// ---------------------------------------------------------------------------
|
|
808 |
// ZoomOutTimerL
|
|
809 |
// ---------------------------------------------------------------------------
|
|
810 |
//
|
|
811 |
TInt CGlxZoomPanEventHandler::ZoomOutTimerL(TAny* aSelf)
|
|
812 |
{
|
|
813 |
TRACER("CGlxZoomPanEventHandler::ZoomOutTimerL");
|
|
814 |
if(aSelf)
|
|
815 |
{
|
|
816 |
CGlxZoomPanEventHandler* self = static_cast <CGlxZoomPanEventHandler*> (aSelf);
|
|
817 |
self->CallZoomOutL();
|
|
818 |
}
|
|
819 |
return KErrNone;
|
|
820 |
}
|
|
821 |
|
|
822 |
// ---------------------------------------------------------------------------
|
|
823 |
// CallZoomOutL
|
|
824 |
// ---------------------------------------------------------------------------
|
|
825 |
//
|
|
826 |
void CGlxZoomPanEventHandler::CallZoomOutL()
|
|
827 |
{
|
|
828 |
TRACER("CGlxZoomPanEventHandler::CallZoomOutL()");
|
|
829 |
iZoomEventHandler.HandleZoomOutL(KGlxZoomOutCommand);
|
|
830 |
}
|
|
831 |
|
|
832 |
//----------------------------------------------------------------------------------
|
|
833 |
// PanIntervalExpired:Callback function for the pan timer
|
|
834 |
//----------------------------------------------------------------------------------
|
|
835 |
//
|
|
836 |
TInt CGlxZoomPanEventHandler::PanIntervalExpired(TAny* aPtr)
|
|
837 |
{
|
|
838 |
TRACER("CGlxZoomPanEventHandler::PanIntervalExpired ");
|
|
839 |
GLX_LOG_INFO("PanIntervalExpired ");
|
|
840 |
CGlxZoomPanEventHandler* self = static_cast<CGlxZoomPanEventHandler*>(aPtr);
|
|
841 |
self->DoPan();
|
|
842 |
return 0; // Timer has finished
|
|
843 |
}
|
|
844 |
|
|
845 |
|
|
846 |
//----------------------------------------------------------------------------------
|
|
847 |
// DoPan:calls Panning function.
|
|
848 |
//----------------------------------------------------------------------------------
|
|
849 |
//
|
|
850 |
void CGlxZoomPanEventHandler::DoPan()
|
|
851 |
{
|
|
852 |
TRACER("CGlxZoomPanEventHandler::DoPan ");
|
|
853 |
|
|
854 |
TBool atPanThreshold = EFalse;
|
|
855 |
TPoint topLeftCorner;
|
|
856 |
iMathsEngine.Pan(iPanDirection, topLeftCorner,
|
|
857 |
EGlxPanIncrementExponential, &atPanThreshold);
|
|
858 |
|
|
859 |
iZoomEventHandler.HandleViewPortParametersChanged(topLeftCorner,
|
|
860 |
KGlxAnimationTimekeyPan);
|
|
861 |
|
|
862 |
if ( atPanThreshold )
|
|
863 |
{
|
|
864 |
CancelZoomPanTimer();
|
|
865 |
}
|
|
866 |
|
|
867 |
iMathsEngine.UpdatePanFactor();
|
|
868 |
}
|
|
869 |
|
|
870 |
|
|
871 |
//----------------------------------------------------------------------------------
|
|
872 |
// OrientationChanged
|
|
873 |
//----------------------------------------------------------------------------------
|
|
874 |
//
|
|
875 |
void CGlxZoomPanEventHandler::OrientationChanged(const TRect& aNewScreenRect)
|
|
876 |
{
|
|
877 |
TRACER("CGlxZoomPanEventHandler::OrientationChanged ");
|
|
878 |
|
|
879 |
iMathsEngine.OrientationChanged(aNewScreenRect);
|
|
880 |
iMinZoomRatio = iMathsEngine.MinimumZoomRatio();
|
|
881 |
//Keep the relative Zoom Ratio same while changing orientation
|
|
882 |
Zoom(0, KGlxNeutralZoomFactor, iZoomMode) ;
|
|
883 |
}
|
|
884 |
|
|
885 |
// -----------------------------------------------------------------------------
|
|
886 |
// ShowSlider
|
|
887 |
// -----------------------------------------------------------------------------
|
|
888 |
//
|
|
889 |
void CGlxZoomPanEventHandler::ShowScreenFurniture(TTimeIntervalMicroSeconds32 aTimeout)
|
|
890 |
{
|
|
891 |
TRACER("CGlxZoomPanEventHandler::ShowScreenFurniture()");
|
|
892 |
|
|
893 |
if (EUiOff == iZoomUiState )
|
|
894 |
{
|
|
895 |
// make visible if not already visible.
|
|
896 |
// the timer will ofcourse get restarted.
|
|
897 |
iZoomEventHandler.HandleShowUi(ETrue);
|
|
898 |
}
|
|
899 |
|
|
900 |
if (aTimeout.Int())
|
|
901 |
{
|
|
902 |
StartUITimer(aTimeout,aTimeout,TCallBack( UiTimeOut,this ));
|
|
903 |
}
|
|
904 |
}
|
|
905 |
|
|
906 |
|
|
907 |
// -----------------------------------------------------------------------------
|
|
908 |
// HideScreenFurniture
|
|
909 |
// -----------------------------------------------------------------------------
|
|
910 |
//
|
|
911 |
void CGlxZoomPanEventHandler::HideScreenFurniture()
|
|
912 |
{
|
|
913 |
TRACER("CGlxZoomPanEventHandler::HideScreenFurniture()");
|
|
914 |
if (EUiOn == iZoomUiState )
|
|
915 |
{
|
|
916 |
iZoomEventHandler.HandleShowUi(EFalse);
|
|
917 |
CancelUITimer();
|
|
918 |
}
|
|
919 |
}
|
|
920 |
|
|
921 |
|
|
922 |
// -----------------------------------------------------------------------------
|
|
923 |
// ActivateZoom
|
|
924 |
// -----------------------------------------------------------------------------
|
|
925 |
//
|
|
926 |
void CGlxZoomPanEventHandler::ActivateZoom( TInt aInitialZoomRatio,
|
|
927 |
TSize aImageSize,
|
|
928 |
TZoomStartMode aStartMode,
|
|
929 |
TInt aMinZoomRatio,
|
|
930 |
TInt aMaxZoomRatio,
|
|
931 |
TPoint* aZoomFocus)
|
|
932 |
{
|
|
933 |
TRACER("CGlxZoomPanEventHandler::ActivateZoom");
|
|
934 |
|
|
935 |
TPoint center(aImageSize.iWidth/2 ,aImageSize.iHeight/2 );
|
|
936 |
TSize imageSize(aImageSize.iWidth, aImageSize.iHeight);
|
|
937 |
|
|
938 |
TSize screenSize = TSize(AlfUtil::ScreenSize());
|
|
939 |
|
|
940 |
GLX_LOG_INFO2("ActivateZoom : Center = [%d,%d], ",
|
|
941 |
TInt(center.iX),
|
|
942 |
TInt(center.iY)
|
|
943 |
);
|
|
944 |
|
|
945 |
// Minimum and Maximum Zoom Ratio
|
|
946 |
iZoomRatio = aInitialZoomRatio;
|
|
947 |
iMinZoomRatio = aMinZoomRatio ;
|
|
948 |
iMaxZoomRatio = aMaxZoomRatio ;
|
|
949 |
|
|
950 |
iMathsEngine.Initialize(center,
|
|
951 |
screenSize,
|
|
952 |
imageSize,
|
|
953 |
iZoomRatio,
|
|
954 |
aMinZoomRatio
|
|
955 |
);
|
|
956 |
|
|
957 |
//initially show the slider,so set the state to slider visible
|
|
958 |
TPoint viewPortTopLeft(0,0);
|
|
959 |
TSize viewPortDimension(0,0);
|
|
960 |
iZoomMode = EZoomIn;
|
|
961 |
|
|
962 |
switch(aStartMode)
|
|
963 |
{
|
|
964 |
case EZoomStartKey :
|
|
965 |
{
|
|
966 |
// Fix for issue EPKA-7ZX8FR: Vasco_wk03: Zoom In Key (Volume Up Key),
|
|
967 |
// gradually Zooms the image to full extent on a single click.
|
|
968 |
|
|
969 |
// We are not getting keyup event which cancle the timer so not
|
|
970 |
// starting timer to do zoom
|
|
971 |
Zoom(0, 0, iZoomMode);
|
|
972 |
}
|
|
973 |
break;
|
|
974 |
case EZoomStartDoubleTap :
|
|
975 |
{
|
|
976 |
if (!iIsZoomingInAnimatedState)
|
|
977 |
{
|
|
978 |
if (aZoomFocus)
|
|
979 |
{
|
|
980 |
iZoomFocus.iX = aZoomFocus->iX ;
|
|
981 |
iZoomFocus.iY = aZoomFocus->iY ;
|
|
982 |
}
|
|
983 |
SetupAnimatedZoom(EZoomIn, &iZoomFocus);
|
|
984 |
}
|
|
985 |
}
|
|
986 |
break;
|
|
987 |
case EZoomStartPinch:
|
|
988 |
{
|
|
989 |
iZoomRatio = iMathsEngine.Zoom(EZoomIn, aMinZoomRatio,
|
|
990 |
viewPortTopLeft, viewPortDimension);
|
|
991 |
|
|
992 |
iZoomEventHandler.HandleViewPortParametersChanged(viewPortTopLeft , 0,
|
|
993 |
&viewPortDimension, iZoomRatio);
|
|
994 |
iZoomEventHandler.HandleShowUi(EFalse);
|
|
995 |
}
|
|
996 |
break;
|
|
997 |
case EZoomStartSlider:
|
|
998 |
{
|
|
999 |
Zoom(aInitialZoomRatio, 0, iZoomMode);
|
|
1000 |
}
|
|
1001 |
break;
|
|
1002 |
default:
|
|
1003 |
break;
|
|
1004 |
}
|
|
1005 |
|
|
1006 |
}
|
|
1007 |
|
|
1008 |
// -----------------------------------------------------------------------------
|
|
1009 |
// DeactivateZoom
|
|
1010 |
// -----------------------------------------------------------------------------
|
|
1011 |
//
|
|
1012 |
void CGlxZoomPanEventHandler::DeactivateZoom()
|
|
1013 |
{
|
|
1014 |
TRACER("CGlxZoomPanEventHandler::DeactivateZoom()");
|
|
1015 |
|
|
1016 |
iZoomMode = EZoomOut;
|
|
1017 |
iIsZoomingInAnimatedState = EFalse ;
|
|
1018 |
CancelZoomPanTimer();
|
|
1019 |
CancelUITimer();
|
|
1020 |
CancelAnimationTimer();
|
|
1021 |
}
|
|
1022 |
|
|
1023 |
// -----------------------------------------------------------------------------
|
|
1024 |
// HandleEvent
|
|
1025 |
// -----------------------------------------------------------------------------
|
|
1026 |
//
|
|
1027 |
// Todo: Combine both these HandleEvents
|
|
1028 |
TBool CGlxZoomPanEventHandler::HandleEvent( const TAlfEvent& aEvent )
|
|
1029 |
{
|
|
1030 |
TRACER("CGlxZoomPanEventHandler::HandleEvent()");
|
|
1031 |
|
|
1032 |
TBool eventHandledState = EFalse;
|
|
1033 |
|
|
1034 |
if (iZoomActivated)
|
|
1035 |
{
|
|
1036 |
if(!aEvent.IsCustomEvent())
|
|
1037 |
{
|
|
1038 |
eventHandledState = EFalse;
|
|
1039 |
}
|
|
1040 |
else
|
|
1041 |
{
|
|
1042 |
GLX_LOG_INFO("CGlxZoomPanEventHandler::HandleEvent: Custom Event.");
|
|
1043 |
TInt EventID = aEvent.CustomParameter();
|
|
1044 |
|
|
1045 |
switch(EventID)
|
|
1046 |
{
|
|
1047 |
case ETypePrimaryValueChange:
|
|
1048 |
{
|
|
1049 |
GLX_LOG_INFO("CGlxZoomPanEventHandler::HandleEvent:ETypePrimaryValueChange");
|
|
1050 |
|
|
1051 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandleEvent:ETypePrimaryValueChange, iMinZoomRatio = [%d]", iMinZoomRatio);
|
|
1052 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandleEvent:ETypePrimaryValueChange, iMaxZoomRatio = [%d]", iMaxZoomRatio);
|
|
1053 |
|
|
1054 |
MulSliderPos* dataPtr = (MulSliderPos*)(aEvent.CustomEventData());
|
|
1055 |
TInt currentSliderValue = dataPtr->mCurrentValue;
|
|
1056 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::HandleEvent:ETypePrimaryValueChange, currentSliderValue = [%d]", currentSliderValue );
|
|
1057 |
|
|
1058 |
// Is current value within acceptable range?
|
|
1059 |
// If yes, then zoom in or zoom out as needed.
|
|
1060 |
if ( currentSliderValue > iMinZoomRatio
|
|
1061 |
&& currentSliderValue <= iMaxZoomRatio )
|
|
1062 |
{
|
|
1063 |
Zoom(currentSliderValue, 0, EZoomIn);
|
|
1064 |
}
|
|
1065 |
else if (currentSliderValue <= iMinZoomRatio)
|
|
1066 |
{
|
|
1067 |
CallZoomOutL();
|
|
1068 |
}
|
|
1069 |
eventHandledState = ETrue;
|
|
1070 |
}
|
|
1071 |
break;
|
|
1072 |
|
|
1073 |
case ECustomEventIconClick :
|
|
1074 |
{
|
|
1075 |
//The Slider is held by user,so cancel the UI Timer
|
|
1076 |
//When the slider is held ,the screen furniture shouldn't disappear
|
|
1077 |
GLX_LOG_INFO("CGlxZoomPanEventHandler::HandleEvent, ECustomEventIconClick");
|
|
1078 |
CancelUITimer();
|
|
1079 |
eventHandledState = ETrue;
|
|
1080 |
}
|
|
1081 |
break;
|
|
1082 |
|
|
1083 |
case ECustomEventIconRelease:
|
|
1084 |
{
|
|
1085 |
//The slider is not held, by the user,start the ui timer to hide the screen furniture
|
|
1086 |
GLX_LOG_INFO( " CGlxZoomPanEventHandler::offerEvent,ECustomEventIconRelease");
|
|
1087 |
StartUITimer(KGlxScreenTimeout, KGlxScreenTimeout,
|
|
1088 |
TCallBack(UiTimeOut, this));
|
|
1089 |
eventHandledState = ETrue;
|
|
1090 |
}
|
|
1091 |
break;
|
|
1092 |
|
|
1093 |
default:
|
|
1094 |
{
|
|
1095 |
GLX_LOG_INFO(" CGlxZoomPanEventHandler::HandleEvent default");
|
|
1096 |
eventHandledState = EFalse;
|
|
1097 |
break;
|
|
1098 |
}
|
|
1099 |
}
|
|
1100 |
}
|
|
1101 |
}
|
|
1102 |
return eventHandledState ;
|
|
1103 |
}
|
|
1104 |
|
|
1105 |
// -----------------------------------------------------------------------------
|
|
1106 |
// HandleEvent
|
|
1107 |
// -----------------------------------------------------------------------------
|
|
1108 |
//
|
|
1109 |
TBool CGlxZoomPanEventHandler::HandleEventL(const TAlfEvent &aEvent)
|
|
1110 |
{
|
|
1111 |
TRACER("CGlxZoomPanEventHandler::HandleEventL()");
|
|
1112 |
|
|
1113 |
TBool consumed = EFalse;
|
|
1114 |
|
|
1115 |
if (iZoomActivated)
|
|
1116 |
{
|
|
1117 |
if (aEvent.IsKeyEvent() )
|
|
1118 |
{
|
|
1119 |
GLX_LOG_INFO(" CGlxZoomPanEventHandler::HandleEvent KeyEvent");
|
|
1120 |
consumed = HandlekeyEvents(aEvent);
|
|
1121 |
}
|
|
1122 |
else if(aEvent.IsPointerEvent() )
|
|
1123 |
{
|
|
1124 |
GLX_LOG_INFO(" CGlxZoomPanEventHandler::HandleEvent PointerEvent ");
|
|
1125 |
consumed = iZoomEventHandler.HandlePointerEventsL(aEvent);
|
|
1126 |
}
|
|
1127 |
}
|
|
1128 |
return consumed;
|
|
1129 |
}
|
|
1130 |
|
|
1131 |
|
|
1132 |
// -----------------------------------------------------------------------------
|
|
1133 |
// ZoomToMinimum
|
|
1134 |
// -----------------------------------------------------------------------------
|
|
1135 |
//
|
|
1136 |
void CGlxZoomPanEventHandler::ZoomToMinimumL()
|
|
1137 |
{
|
|
1138 |
TRACER("CGlxZoomPanEventHandler::ZoomToMinimumL( )");
|
|
1139 |
|
|
1140 |
Zoom(iMinZoomRatio, 0, EZoomOut);
|
|
1141 |
CallZoomOutL();
|
|
1142 |
}
|
|
1143 |
|
|
1144 |
|
|
1145 |
// -----------------------------------------------------------------------------
|
|
1146 |
// Zoom
|
|
1147 |
// -----------------------------------------------------------------------------
|
|
1148 |
//
|
|
1149 |
void CGlxZoomPanEventHandler::Zoom(TInt aExpectedZoomLevel,
|
|
1150 |
TInt aRelativeZoomFactor, TZoomMode aZoomMode, TPoint* aZoomFocus)
|
|
1151 |
{
|
|
1152 |
TRACER("CGlxZoomPanEventHandler::Zoom()");
|
|
1153 |
|
|
1154 |
TPoint viewPortTopLeft(0,0);
|
|
1155 |
TSize viewPortDimension(0,0);
|
|
1156 |
TBool atZoomThreshold = EFalse;
|
|
1157 |
|
|
1158 |
iZoomRatio = iMathsEngine.Zoom(aZoomMode,
|
|
1159 |
aExpectedZoomLevel,
|
|
1160 |
viewPortTopLeft,
|
|
1161 |
viewPortDimension,
|
|
1162 |
&atZoomThreshold,
|
|
1163 |
aZoomFocus,
|
|
1164 |
aRelativeZoomFactor);
|
|
1165 |
|
|
1166 |
if( atZoomThreshold )
|
|
1167 |
{
|
|
1168 |
GLX_LOG_INFO("CGlxZoomPanEventHandler::Zoom Threshold Reached");
|
|
1169 |
CancelZoomPanTimer();
|
|
1170 |
if (iZoomRatio <= iMinZoomRatio)
|
|
1171 |
{
|
|
1172 |
CallZoomOutL();
|
|
1173 |
return;
|
|
1174 |
}
|
|
1175 |
}
|
|
1176 |
iZoomEventHandler.HandleViewPortParametersChanged(viewPortTopLeft, 0,
|
|
1177 |
&viewPortDimension, iZoomRatio);
|
|
1178 |
}
|
|
1179 |
|
|
1180 |
// -----------------------------------------------------------------------------
|
|
1181 |
// ZoomIsActivated
|
|
1182 |
// -----------------------------------------------------------------------------
|
|
1183 |
//
|
|
1184 |
void CGlxZoomPanEventHandler::SetZoomActivated(TBool aIsActivated)
|
|
1185 |
{
|
|
1186 |
TRACER("CGlxZoomPanEventHandler::ZoomIsActivated");
|
|
1187 |
iZoomActivated = aIsActivated;
|
|
1188 |
}
|
|
1189 |
|
|
1190 |
// -----------------------------------------------------------------------------
|
|
1191 |
// SetZoomUiState
|
|
1192 |
// -----------------------------------------------------------------------------
|
|
1193 |
//
|
|
1194 |
void CGlxZoomPanEventHandler::SetZoomUiState(TUiState aZoomUiState)
|
|
1195 |
{
|
|
1196 |
TRACER("CGlxZoomPanEventHandler::ZoomIsActivated");
|
|
1197 |
iZoomUiState = aZoomUiState;
|
|
1198 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::SetZoomUiState :=%d",iZoomUiState);
|
|
1199 |
}
|
|
1200 |
|
|
1201 |
// -----------------------------------------------------------------------------
|
|
1202 |
// ZoomUiState
|
|
1203 |
// -----------------------------------------------------------------------------
|
|
1204 |
//
|
|
1205 |
TUiState CGlxZoomPanEventHandler::ZoomUiState()
|
|
1206 |
{
|
|
1207 |
TRACER("CGlxZoomPanEventHandler::ZoomUiState");
|
|
1208 |
GLX_LOG_INFO1("CGlxZoomPanEventHandler::ZoomUiState :=%d",iZoomUiState);
|
|
1209 |
return iZoomUiState ;
|
|
1210 |
}
|
|
1211 |
|
|
1212 |
// -----------------------------------------------------------------------------
|
|
1213 |
// HandleMultiTouchReleased
|
|
1214 |
// -----------------------------------------------------------------------------
|
|
1215 |
//
|
|
1216 |
void CGlxZoomPanEventHandler::HandleMultiTouchReleased()
|
|
1217 |
{
|
|
1218 |
TRACER("CGlxZoomPanEventHandler::HandleMultiTouchReleased");
|
|
1219 |
//Do nothing
|
|
1220 |
}
|