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1 /* |
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2 * Copyright (c) 2005-2007 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: Wrapper class for AknVolumeControl |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef _XNVOLUMECONTROLADAPTER_H |
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20 #define _XNVOLUMECONTROLADAPTER_H |
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21 |
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22 // INCLUDES |
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23 #include <e32base.h> |
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24 #include "xncontroladapter.h" |
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25 |
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26 // FORWARD DECLARATIONS |
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27 class CXnNodePluginIf; |
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28 class MXnVolumeControlObserver; |
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29 class CAknVolumeControl; |
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30 |
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31 // CLASS DECLARATION |
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32 /** |
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33 * @ingroup group_xnvolumecontrolfactory |
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34 * @lib xnvolumecontrol.lib |
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35 * @since Series 60 3.2 |
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36 */ |
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37 class CXnVolumeControlAdapter : public CXnControlAdapter, public MCoeControlBackground |
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38 { |
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39 public: |
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40 /** |
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41 * 2 phase construction. |
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42 */ |
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43 static CXnVolumeControlAdapter* NewL(CXnControlAdapter* aParent, CXnNodePluginIf& aNode); |
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44 |
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45 /** |
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46 * Destructor. |
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47 */ |
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48 virtual ~CXnVolumeControlAdapter(); |
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49 |
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50 public: // New functions |
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51 /** |
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52 * Sets the value of the volume control |
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53 * @param aValue new value |
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54 */ |
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55 void SetValueL( TInt aValue ); |
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56 |
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57 /** |
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58 * Returns the value of the volume control |
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59 */ |
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60 TInt ValueL(); |
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61 |
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62 /** |
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63 * Sets the range for the volume control |
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64 * @param aMinimumValue Minimum value |
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65 * @param aMaximumValue Maximum value |
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66 */ |
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67 void SetRangeL( TInt aMimimumValue, TInt aMaximumValue ); |
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68 |
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69 /** |
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70 * Returns the minimum and maximum value of the volume control range |
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71 * @param aMinimumValue minimum value reference |
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72 * @param aMaximumValue maximum value reference |
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73 */ |
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74 void GetRangeL( TInt& aMinimumValue, TInt& aMaximumValue ); |
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75 |
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76 /** |
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77 * Sets the observer for the volume control |
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78 * @param pointer to the observer |
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79 */ |
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80 void SetObserver( MXnVolumeControlObserver* aObserver ); |
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81 |
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82 public: // from base classes |
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83 |
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84 /** |
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85 * From CXnControlAdapter Handles the property changes. |
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86 * @since Series 60 3.1 |
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87 * @return void. |
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88 */ |
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89 void DoHandlePropertyChangeL( CXnProperty* aProperty = NULL ); |
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90 |
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91 /** |
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92 * From CCoeControl Handles the resource change. |
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93 * @since Series 60 3.1 |
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94 * @param aType A type of the resource change |
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95 * @return void. |
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96 */ |
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97 void HandleScreenDeviceChangedL(); |
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98 |
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99 /** |
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100 * See CCoeControl documentation |
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101 */ |
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102 void HandlePointerEventL( const TPointerEvent& aPointerEvent ); |
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103 |
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104 /** |
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105 * See CCoeControl documentation |
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106 */ |
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107 void SizeChanged(); |
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108 |
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109 /** |
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110 * See CCoeControl documentation |
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111 */ |
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112 TInt CountComponentControls() const; |
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113 |
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114 /** |
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115 * See CCoeControl documentation |
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116 */ |
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117 CCoeControl* ComponentControl( TInt aIndex ) const; |
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118 |
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119 /** |
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120 * From MCoeControlBackground. Draws the background for a given control. |
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121 * @param aGc Graphics context used for drawing. |
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122 * @param aControl The control being drawn. |
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123 * @param aRect The area to be redrawn. |
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124 */ |
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125 void Draw( CWindowGc& aGc, const CCoeControl& aControl, |
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126 const TRect& aRect ) const; |
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127 |
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128 private: |
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129 CXnVolumeControlAdapter(CXnControlAdapter* aParent, CXnNodePluginIf& aNode); |
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130 |
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131 void ConstructL(); |
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132 |
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133 virtual void Draw(const TRect& aRect) const; |
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134 |
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135 /** |
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136 * Returns the current volume value from property |
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137 */ |
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138 TInt GetCurrentValueL(); |
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139 |
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140 /** |
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141 * Notifies the observer with new volume value |
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142 */ |
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143 void NotifyObserverL(); |
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144 |
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145 /** |
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146 * Sets volume control CSS properties |
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147 * @param aNode UI Node |
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148 * @return void |
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149 */ |
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150 void SetVolumeControlPropertiesL(); |
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151 |
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152 /** |
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153 * Constructs the volume control component from resource |
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154 */ |
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155 void ConstructVolumeControlL(); |
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156 |
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157 private: |
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158 CXnControlAdapter* iParent; // Parent control, not owned |
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159 CXnNodePluginIf& iNode; // UI node, not owned |
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160 CAknVolumeControl* iVolumeControl; // Avkon Volume control. Owned. |
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161 MXnVolumeControlObserver* iObserver; // Observer. Not owned. |
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162 TRect iHitRect; // Rect where pointer event previously hit |
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163 TInt iSteps; // number of steps |
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164 TInt iMutedValue; // previous value when muted |
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165 TBool iMuted; // is muted? |
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166 TBool iButton1Down; // Button 1 is pressed down |
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167 |
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168 }; |
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169 |
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170 #endif // _XNVOLUMECONTROLADAPTER_H |
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171 |
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172 // End of File |