1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #ifndef __STMGESTURELISTENER_H__ |
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19 #define __STMGESTURELISTENER_H__ |
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20 |
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21 #include <e32base.h> |
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22 #include <rt_gestureif.h> |
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23 |
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24 |
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25 typedef stmGesture::MGestureIf MStmGesture; |
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26 typedef stmGesture::TGestureUid TStmGestureUid; |
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27 typedef stmGesture::TTapType TStmTapType; |
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28 typedef stmGesture::TGestureDirection TStmGestureDirection; |
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29 |
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30 /** |
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31 * Point of float accuracy |
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32 */ |
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33 NONSHARABLE_STRUCT( TRealPoint ) |
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34 { |
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35 inline TRealPoint(); |
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36 inline TRealPoint( const TRealPoint& aPoint ); |
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37 inline TRealPoint( TReal aX, TReal aY ); |
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38 inline TBool operator==( const TRealPoint& aPoint ) const; |
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39 |
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40 TReal32 iX; |
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41 TReal32 iY; |
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42 }; |
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43 |
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44 /** |
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45 * Enum to distinguish between Gesture Entry and Exit. |
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46 * Currently supported only for Pinch |
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47 */ |
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48 enum TStmGestureState { |
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49 EGestureEnter = 0, |
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50 EGestureExit |
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51 |
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52 }; |
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53 |
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54 /** |
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55 * Interface Class to the Application |
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56 */ |
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57 |
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58 class TStmGestureEvent |
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59 { |
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60 public: |
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61 inline TStmGestureUid Code() const { return iGestureUid; }; |
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62 inline TPoint CurrentPos() const { return iCurrPos; }; |
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63 inline TRealPoint Speed() const { return iSpeed; }; |
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64 inline TStmTapType Type() const { return iType; }; |
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65 inline int Details() const { return iDetails; }; |
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66 inline TStmGestureDirection GestureDirection() const { return iDirection; }; |
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67 inline TPoint PinchEndPos() const { return iPinchEndPos; }; |
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68 inline TStmGestureState GestureState() const { return iGestureState; }; |
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69 |
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70 inline void SetCode(TStmGestureUid aGestureUid) { iGestureUid = aGestureUid; }; |
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71 inline void SetCurrentPos(TPoint aPos) { iCurrPos = aPos; }; |
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72 inline void SetSpeed(TRealPoint aSpeed) { iSpeed = aSpeed; }; |
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73 inline void SetType(TStmTapType aType) { iType = aType; }; |
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74 inline void SetDetails(int aDetails) { iDetails = aDetails; }; |
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75 inline void SetGestureDirection(TStmGestureDirection aDirection) { iDirection = aDirection; }; |
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76 inline void SetPinchEndPos(TPoint aPinchEndPos) { iPinchEndPos = aPinchEndPos; }; |
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77 inline void SetGestureState(TStmGestureState aGestureState) { iGestureState = aGestureState; }; |
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78 |
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79 private: |
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80 TStmGestureUid iGestureUid; // Code of the gesture |
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81 TPoint iCurrPos; // Current position where gesture occured |
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82 TRealPoint iSpeed; // speed X and speed Y |
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83 TStmTapType iType; // single-tap or double-tap |
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84 int iDetails; // details like pinch factor |
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85 TStmGestureDirection iDirection; // Gesture Direction |
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86 TPoint iPinchEndPos; // End of pinching position |
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87 TStmGestureState iGestureState; // Gesture State. currently supports only for pinch |
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88 |
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89 }; |
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90 |
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91 class MStmGestureListener |
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92 { |
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93 public: |
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94 /** |
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95 * Handle the gesture event |
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96 * @param aEvent event describing the gesture |
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97 */ |
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98 virtual void HandleGestureEventL(const TStmGestureEvent& aGesture) = 0; |
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99 }; |
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100 |
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101 // ---------------------------------------------------------------------------- |
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102 // Default constructor for real point |
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103 // ---------------------------------------------------------------------------- |
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104 // |
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105 inline TRealPoint::TRealPoint() |
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106 : iX( 0 ), iY( 0 ) |
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107 { |
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108 } |
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109 |
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110 // ---------------------------------------------------------------------------- |
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111 // Copy constructor for real point |
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112 // ---------------------------------------------------------------------------- |
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113 // |
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114 inline TRealPoint::TRealPoint( const TRealPoint& aPoint ) |
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115 : iX( aPoint.iX ), iY( aPoint.iY ) |
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116 { |
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117 } |
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118 |
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119 // ---------------------------------------------------------------------------- |
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120 // Copy constructor for real point |
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121 // ---------------------------------------------------------------------------- |
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122 // |
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123 inline TRealPoint::TRealPoint( TReal aX, TReal aY ) |
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124 : iX( aX ), iY( aY ) |
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125 { |
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126 } |
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127 |
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128 // ---------------------------------------------------------------------------- |
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129 // Default constructor for real point |
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130 // ---------------------------------------------------------------------------- |
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131 // |
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132 inline TBool TRealPoint::operator==( const TRealPoint& aPoint ) const |
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133 { |
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134 return iX == aPoint.iX && iY == aPoint.iY; |
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135 } |
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136 |
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137 |
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138 #endif // __ICS_GESTURELISTENER_H__ |
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