1 /* |
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2 * Copyright (c) 2009 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 "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: Control interface with utilities for slider widget. |
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15 * |
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16 */ |
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17 |
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18 #ifndef MUL_SLIDERCONTROL_H |
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19 #define MUL_SLIDERCONTROL_H |
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20 |
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21 //WidgetModel Includes |
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22 #include <alf/alfwidgetcontrol.h> |
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23 #include <alf/alfwidgeteventhandler.h> |
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24 #include "alf/alfelement.h" |
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25 #include <touchfeedback.h> |
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26 //Osn Includes |
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27 #include <osn/ustring.h> |
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28 |
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29 |
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30 using namespace osncore; |
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31 using namespace Alf; |
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32 |
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33 // Forward declarations |
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34 class TAlfCustomEventCommand; |
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35 |
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36 const float roundOff = 0.5; |
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37 namespace Alf |
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38 { |
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39 // Forward declaration |
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40 class IAlfModel; |
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41 class AlfModelOperation; |
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42 class MulSliderControl : public CAlfWidgetControl |
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43 { |
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44 public: |
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45 |
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46 /** |
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47 * Constructor. |
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48 */ |
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49 MulSliderControl ( CAlfEnv& aEnv ); |
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50 |
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51 /** |
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52 * Class Destructor. |
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53 * @since S60 ?S60_version |
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54 */ |
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55 virtual ~MulSliderControl(); |
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56 |
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57 //-------------------------------------------------------------------------- |
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58 //Overriden Apis from Base class CAlfControl |
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59 //-------------------------------------------------------------------------- |
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60 // |
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61 |
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62 /** |
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63 * Notifies the owner that the layout of a visual has been recalculated. |
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64 * Called only when the EAlfVisualFlagLayoutUpdateNotification flag has |
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65 * been set for the visual. |
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66 * |
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67 * @param aVisual Visual that has been laid out. |
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68 */ |
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69 void VisualLayoutUpdated ( CAlfVisual& aVisual ); |
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70 |
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71 /** |
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72 * Returns top level layout. Returns NULL if this control does not |
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73 * implement the IAlfHostAPI interface or if there is no base layout. |
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74 * |
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75 * @return Pointer to top level layout, or NULL if not available. |
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76 */ |
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77 CAlfLayout* ContainerLayout ( const CAlfControl* aConnected ) const; |
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78 |
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79 // from base class CAlfWidgetControl |
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80 |
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81 /** |
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82 * @see IAlfWidgetControl |
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83 */ |
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84 AlfEventStatus handleEvent( const TAlfEvent& aEvent ); |
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85 |
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86 /** |
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87 * Update the presentation according to the data changes. |
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88 * |
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89 * @since S60 ?S60_version |
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90 * @param aArrayOfOperation An Array containing the operations performed on |
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91 * the model. |
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92 */ |
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93 void dataChanging ( const AlfModelOperation& aOperation ); |
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94 |
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95 /** |
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96 * removes an element. |
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97 */ |
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98 void removeAndDestroyElement(const IAlfElement& aElement ); |
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99 |
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100 |
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101 // From base class IAlfInterfaceBase |
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102 |
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103 /** |
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104 * From IAlfInterfaceBase. |
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105 * Getter for interfaces provided by the control classes. |
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106 * Derived classes should always call the base class method |
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107 * from the overridden MakeInterface. |
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108 * |
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109 * @since S60 ?S60_version |
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110 * @param aType A descriptor to identify the type of the queried interface. |
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111 * @return The queried interface, or NULL if the interface is not |
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112 * supported or available. |
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113 */ |
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114 IAlfInterfaceBase* makeInterface ( const IfId& aType ); |
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115 |
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116 public: |
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117 |
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118 /** |
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119 * Generates the feedback based on the events recieved |
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120 * |
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121 */ |
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122 void TactileEffectOnTouchandHold(); |
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123 |
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124 /** |
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125 * Generates the feedback based on the events recieved |
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126 * |
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127 * @param aEvent Events recieved by the widget on Drag |
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128 */ |
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129 void TactileEffectOnDrag(TAlfEvent& aEvent); |
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130 |
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131 /** |
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132 * Generates the feedback based on the thumb release |
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133 * or drag on thumb is stopped |
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134 */ |
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135 void TactileEffectOnRelease(); |
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136 |
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137 private: |
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138 |
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139 /** |
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140 * Rounds float to int |
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141 * |
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142 * @param aFloatValue float value |
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143 * @return int |
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144 */ |
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145 inline int roundFloatToInt ( float aFloatValue ) |
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146 { |
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147 return(int)(aFloatValue + roundOff); |
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148 } |
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149 |
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150 /** |
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151 * Sets whether or not tactile feedback is enabled. |
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152 * |
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153 * @param aEnabled Whether or not tactile is enabled. |
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154 */ |
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155 void EnableTactileFeedback( bool aEnabled ); |
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156 |
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157 private: |
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158 |
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159 /** |
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160 * Default contructor |
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161 */ |
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162 MulSliderControl(); |
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163 |
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164 /** |
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165 * IAlfAttributeOwner implementation. Own. |
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166 */ |
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167 |
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168 /** |
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169 * height of the Layout. |
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170 */ |
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171 int mLayoutHeight; |
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172 |
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173 /** |
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174 * width of the Layout. |
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175 */ |
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176 int mLayoutWidth; |
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177 |
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178 /** |
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179 * tactile is enabled or not. |
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180 */ |
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181 bool mEnableTactile; |
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182 |
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183 /** |
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184 * Tactile Feedback for drag started |
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185 */ |
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186 bool mDragTactileFeedbackStarted; |
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187 /** |
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188 * pointer to get the current tactile instance |
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189 */ |
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190 MTouchFeedback *mTactilefdbInstance; |
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191 |
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192 }; // class MulSliderControl |
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193 |
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194 } // namespace Alf |
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195 |
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196 #endif //MUL_SLIDERCONTROL_H |
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197 //End Of File |
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