1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   

    15 *

    16 */

    17 

    18 #ifndef _GESTUREDEFS_H_

    19 #define _GESTUREDEFS_H

    20 

    21 #include <e32std.h> 

    22 

    23 namespace stmUiEventEngine

    24 {

    25 

    26 /// time to hold the stylus in the same position to activate holding

    27 const TInt KHoldDuration = 500000; // microseconds

    28 

    29 /// time to tap again for the second tap to be a double tap

    30 const TInt KMaxDoubleTapDuration = 400000; // microseconds

    31 

    32 /// time in which speed becomes zero if user stops stylus movement before

    33 /// lifting the pointer

    34 const TInt KSpeedStopTime = 150000; // microseconds

    35 

    36 /// tolerance in degrees to either side of an angle, for direction to be the

    37 /// same as reference angle

    38 const TReal KAngleTolerance = 25;

    39 

    40 /// Nth pointer event before the latest point

    41 const TInt KPreviousPointOffset = 3;

    42 

    43 /// Tolerance for ignoring small movements, percent of longer screen edge

    44 const TInt KGestureTolerancePercent = 2; // of 100

    45 

    46 const TInt KFingerSize_mm = 8;

    47 

    48 const TInt KTwipsInInch = 1440;

    49 

    50 const TReal KTwipsInMm = 56.7;

    51 

    52 const TInt  KMaxTapDuration = 300000; //microseconds

    53 

    54 const TInt  KFlickSpeed = 500;

    55 

    56 const TInt KDoubleTapMaxActivationInterval = 500000;     // 500 ms

    57 

    58 const TInt KDoubleTapMinActivationInterval = 40000;   // 40 ms

    59 

    60 const TInt KDoubleTapIdleInterval = 700000;           // 700 ms, to prevent triple-tap effects

    61 

    62 const TInt KLongTapDuration = 2000000; //2 sec

    63 

    64 const TInt KMinTimeBetweenDrags = 20000; // 20 ms

    65 /**

    66  * Panic codes

    67  */

    68 enum TGesturePanic

    69     {

    70     EGesturePanicIllegalLogic

    71     };

    72 

    73 /** Panics the thread */

    74 inline void Panic( TGesturePanic aReason )

    75     {

    76      _LIT( KComponentName, "GestureHelper" );

    77     User::Panic( KComponentName, aReason );

    78     }

    79 

    80 } 

    81 

    82 #endif // _GESTUREDEFS_H