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:  Gesture Definitions

    15 *

    16 */

    17 

    18 #ifndef GENERICSIMPLEGESTURE_H_

    19 #define GENERICSIMPLEGESTURE_H_

    20 #include <rt_gestureif.h>

    21 #include <rt_uievent.h>

    22 

    23 

    24 namespace stmGesture

    25 {

    26 

    27 /*!

    28  * Class for creating a simple gesture for notifying the listener.

    29  * If the basic features are enough for the gesture, then this class

    30  * is enough to be instantiated; there is the location and speed

    31  * determined from the UI event; also type can be specified as well

    32  * as integer detail data.

    33  */

    34 NONSHARABLE_CLASS( TGenericSimpleGesture ): public MGestureIf

    35 {

    36 public:

    37     TGenericSimpleGesture(

    38         TGestureUid uid, const TPoint& loc, int type = 0,

    39         const stmUiEventEngine::MUiEventSpeed* speedIf = NULL);

    40 

    41 public: // implementation of MGestureIf

    42 

    43     TGestureUid gestureUid() const { return m_uid; }

    44     void setDetails(int aDetails) { m_details = aDetails;}  // additional info can be passed here.

    45     /*!

    46      * MGestureIf methods

    47      */

    48     virtual TPoint getLocation() const  ;  // Location where the gesture happened (if applicable)

    49     virtual int getType() const ;         // If the gesture can have different types

    50     virtual float getSpeedX() const __SOFTFP

    51     {

    52         return m_speed ? m_speed->speedX() : 0.f;

    53     }

    54     virtual float getSpeedY() const __SOFTFP

    55     {

    56         return m_speed ? m_speed->speedY() : 0.f;

    57     }

    58     virtual int getDetails() const  ;    // Other possible details....

    59 

    60     virtual void setName(const TDesC8& aName) ;

    61     virtual TPtrC8 getGestureName() ;       // String name for gesture

    62 

    63 public:

    64     void setType(int aType)

    65         {

    66         m_type = aType;

    67         }

    68 

    69 protected:

    70     TPoint m_location ;

    71     TGestureUid m_uid;

    72     int m_type ;

    73     // What would be the other details?

    74     int m_details ;

    75     const stmUiEventEngine::MUiEventSpeed* m_speed ;

    76     TPtrC8 m_name ;

    77 };

    78 

    79 NONSHARABLE_CLASS( TDirectionalGesture ): public TGenericSimpleGesture

    80 {

    81 public:

    82     TDirectionalGesture(

    83         TGestureUid uid, const TPoint& loc, const TPoint& prevLoc,

    84         const stmUiEventEngine::MUiEventSpeed* speedIf = NULL, bool logging = false);

    85 

    86     void setVector(const TPoint& last, const TPoint& previous) ;

    87     void setLogging(bool enabled) { m_loggingEnabled = enabled; }

    88 

    89     TPoint getLengthAndDirection() const {return m_vector;}

    90     TGestureDirection getDirection() const ;

    91     TInt getLength() const

    92     {

    93         return ((m_vector.iX*m_vector.iX)+(m_vector.iY*m_vector.iY)) ;

    94     }

    95 

    96 protected:

    97     TPoint m_vector ;

    98     bool m_loggingEnabled ;

    99 };

   100 

   101 NONSHARABLE_CLASS( TTwoPointGesture ): public TDirectionalGesture

   102 {

   103 public:

   104     TTwoPointGesture(TGestureUid uid, const TPoint& pos1, const TPoint& pos2);

   105     TPoint getPinchEndPos() const { return m_location2; }

   106 

   107 private:

   108     TPoint m_location2 ;

   109 };

   110 

   111 } // namespace

   112 

   113 #endif /* GENERICSIMPLEGESTURE_H_ */