author | chetan.kapoor@v800025.ad-sfpd.intra |
Tue, 27 Oct 2009 10:58:40 +0000 | |
branch | CompilerCompatibility |
changeset 25 | 9d87bae3dc1b |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "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: |
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* |
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*/ |
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/* |
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* gestureeventfilter.cpp |
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* |
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* Created on: Jan 22, 2009 |
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* Author: tyutyuni |
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*/ |
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|
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#include "gesturedefs.h" |
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#include "gestureeventfilter.h" |
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using namespace RT_GestureHelper; |
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CGestureEventFilter::CGestureEventFilter(TInt aTapSize):iTapSize(aTapSize) |
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{ |
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} |
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CGestureEventFilter::~CGestureEventFilter() |
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{ |
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|
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} |
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TBool CGestureEventFilter::FilterDrag(const TPointerEvent& aPointerEvent, TInt& aReason) |
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{ |
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TTime now; |
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now.HomeTime(); |
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return FilterDrag(aPointerEvent, now, aReason); |
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} |
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|
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TBool CGestureEventFilter::FilterDrag(const TPointerEvent& aPointerEvent, TTime& eventTime, TInt& aReason) |
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{ |
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TBool filtered = EFalse; |
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aReason = EFilteredNoReason; |
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switch (aPointerEvent.iType) |
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{ |
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case TPointerEvent::EButton1Down: |
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{ |
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iIsTouchDown = ETrue; |
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iTouchDownTime = iLastEventTime; |
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iTouchDownPos = aPointerEvent.iPosition; |
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break; |
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} |
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case TPointerEvent::EDrag: |
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{ |
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if (iIsTouchDown) |
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{ |
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TPoint delta = aPointerEvent.iPosition - iTouchDownPos; |
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filtered = (Abs(delta.iX) <= iTapSize && Abs(delta.iY) <= iTapSize); |
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aReason = (filtered) ? EFilteredBySize : EFilteredNoReason; |
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} |
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|
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if (!filtered) |
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{ |
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filtered = (eventTime.MicroSecondsFrom(iLastEventTime) < KMinTimeBetweenDrags); |
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aReason = (filtered) ? EFilteredByTime : EFilteredNoReason; |
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} |
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if (!filtered) |
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{ |
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iLastEventTime = eventTime; |
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} |
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iIsTouchDown = filtered; |
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break; |
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} |
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case TPointerEvent::EButton1Up: |
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{ |
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iIsTouchDown = EFalse; |
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break; |
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} |
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} |
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|
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|
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return filtered; |
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} |