1 /*

     2 * Copyright (c) 2009 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 "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:  Touch gesture framework constant definitions.

    15 *

    16 */

    17 

    18 #ifndef AKNTOUCHGESTUREFWDEFS_H

    19 #define AKNTOUCHGESTUREFWDEFS_H

    20 

    21 #include <e32std.h>

    22 

    23 namespace AknTouchGestureFw

    24 {

    25 

    26 /// UID for testing features enabling

    27 const TUint KAknTouchGestureFwTestingFeature( 0x20026806 );

    28 

    29 /// Default threshold value for Long Tap (in microseconds).

    30 const TInt KDefaultLongTapThreshold = 800000;

    31 

    32 /// Default value for Long Tap initial delay (in microseconds).

    33 const TInt KDefaultLongTapInitialDelay = 200000;

    34 

    35 /// Default value for maximum long tap intensity.

    36 const TInt KDefaultMaxLongTapIntensity = 100;

    37 

    38 /// Default value for maximum long tap intensity steps.

    39 const TInt KDefaultMaxLongTapIntensitySteps = 6;

    40 

    41 /// Maximum time duration between two taps to recognize

    42 /// a double tap (in microseconds).

    43 const TInt KDefaultMaxDoubleTapDuration = 400000;

    44 

    45 /// Pixel threshold value used for deciding if pointer movement is a tap.

    46 /// This value should be less than KDragThreshold.

    47 const TInt KTapThreshold = 20;

    48 

    49 /// Pixel threshold value used for deciding if pointer has been dragged.

    50 const TInt KDefaultDragThreshold = 20;

    51 

    52 /// Initial threshold for pinch. This is used when both pointers are 

    53 /// just set down.

    54 const TInt KDefaultPinchInitialThreshold = 20;

    55 

    56 /// Movement threshold for pinch. This is used after initial threshold

    57 /// has been exceeded.

    58 const TInt KDefaultPinchMovementThreshold = 10;

    59 

    60 /// Direction change sensitivity for pinch.

    61 const TInt KDefaultPinchDirectionChangeSensitivity = 2;

    62 

    63 /// Direction reset sensitivity for pinch.

    64 const TInt KDefaultPinchDirectionResetSensitivity = 3;

    65 

    66 /// If height or width is below this value, then that dimension

    67 /// is ignored.

    68 const TInt KDefaultPinchDimensionThreshold = 20;

    69 

    70 /// Maximum confirmation duration for pinch.

    71 const TInt KDefaultPinchMaximumConfirmationDuration = 250000;

    72 

    73 /// Flick speed threshold value (in pixels per sec).

    74 const TInt KDefaultFlickSpeedThreshold = 100;

    75 

    76 /// Flick detection time (in microseconds).

    77 const TInt KDefaultFlickDetectionTime = 500000;

    78 

    79 /// Direction change sensitivity.

    80 const TInt KDefaultDirectionChangeSensitivity = 2;

    81 

    82 /// Max number of points stored to array.

    83 const TInt KMaxBufferLength = 100;

    84 

    85 /// One second in microseconds.

    86 const TInt KMicroSecondsInSecond = 1000000;

    87 

    88 /// One millisecond in microseconds.

    89 const TInt KMicroSecondsInMilliSecond = 1000;

    90 

    91 /// Value used to indicate invalid pointer number.

    92 const TInt KInvalidPointerNumber = -1;

    93 

    94 /// Epsilon values that satisfy formula Abs(x) < KEpsilon are considered

    95 /// to be zero.

    96 const TReal KEpsilon = 0.00001f;

    97 

    98 /// Value used to represent all gesture types in gesture group

    99 const TUint32 KAknTouchGestureFwAllGestureTypes = 0x7fffffff;

   100 

   101 /// Default feedback intensity.

   102 const TInt KAknTouchGestureFwFeedbackIntensity = 50;

   103 

   104 /// Pinch feedback timeout (in microseconds).

   105 const TInt KAknTouchGestureFwPinchFeedbackTimeout = 200000;

   106 

   107 /// Drag feedback timeout (in microseconds).

   108 const TInt KAknTouchGestureFwDragFeedbackTimeout = 200000;

   109 

   110 } // namespace AknTouchGestureFw

   111 

   112 #endif // AKNTOUCHGESTUREFWDEFS_H