1 /* |
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2 * Copyright (c) 2005 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: Declares classes related to Equalizer Settings |
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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 |
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20 |
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21 #ifndef EQUALIZERFREQBAND_H |
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22 #define EQUALIZERFREQBAND_H |
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23 |
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24 // INCLUDES |
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25 #include <AknDialog.h> |
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26 #include "EqualizerPrivateConstants.h" |
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27 |
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28 // FORWARD DECLARATIONS |
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29 class CAudioEqualizerUtility; |
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30 class CAudioEqualizer; |
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31 |
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32 // CLASS DECLARATIONS |
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33 |
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34 NONSHARABLE_CLASS(CEqualizerFreqBand) : public CCoeControl |
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35 { |
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36 public: // Constructors and destructor |
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37 /** |
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38 * This function is called to create an object of |
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39 * type CEqualizerFreqBand - Two phase Construction |
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40 * @since 3.0 |
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41 * @param aaEqEditingDialog a reference to CEqualizerEditingDialog |
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42 * @param aAudEqUtility a reference to CAudioEqualizerUtility |
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43 * @param aPresetIndex the index of the Preset being edited |
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44 * @param aIsActivePreset whether the preset is active or not? |
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45 * @param aBandIndex the index of the Frequncy band |
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46 * @param aContainerRect the CEqualizerFreqBandContainer rectangle |
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47 */ |
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48 static CEqualizerFreqBand* NewL(CEqualizerEditingDialog* aEqEditingDialog, |
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49 CAudioEqualizerUtility*& aAudEqUtility, |
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50 const TInt aPresetIndex, const TBool aIsActivePreset, const TInt aBandIndex, |
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51 TRect& aContainerRect); |
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52 /** |
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53 * This function is called to create an object of |
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54 * type CEqualizerFreqBand - Two phase Construction |
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55 * @since 3.0 |
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56 * @param aaEqEditingDialog a reference to CEqualizerEditingDialog |
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57 * @param aAudEqUtility a reference to CAudioEqualizerUtility |
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58 * @param aPresetIndex the index of the Preset being edited |
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59 * @param aIsActivePreset whether the preset is active or not? |
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60 * @param aBandIndex the index of the Frequncy band |
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61 * @param aContainerRect the CEqualizerFreqBandContainer rectangle |
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62 */ |
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63 static CEqualizerFreqBand* NewLC(CEqualizerEditingDialog* aEqEditingDialog, |
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64 CAudioEqualizerUtility*& aAudEqUtility, |
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65 const TInt aPresetIndex, const TBool aIsActivePreset, const TInt aBandIndex, |
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66 TRect& aContainerRect); |
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67 /** |
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68 * Destructor |
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69 * @since 3.0 |
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70 */ |
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71 virtual ~CEqualizerFreqBand(); |
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72 |
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73 public: // Functions from base classes |
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74 /** |
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75 * From CCoeControl Called when user presses a key |
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76 */ |
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77 TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent, |
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78 TEventCode aType); |
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79 |
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80 public: |
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81 |
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82 /** |
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83 * Function to return the Rect of the controls from the |
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84 * layout [read from the CDL file]. |
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85 * TRect aRect : parent controls rect |
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86 * TInt aVariety : equalizer variety based on the number |
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87 * of frequnecy bands |
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88 * TInt aComponentNumber : Controls which are enumerated for |
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89 * which the rectangle is required from the layout |
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90 */ |
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91 static TRect ComponentRect(const TRect& aRect, TInt aVariety, |
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92 TInt aComponentNumber); |
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93 |
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94 private://Constructors |
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95 /** |
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96 * This function is called to create an object of |
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97 * type CEqualizerFreqBand - First phase Constructor |
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98 * @since 3.0 |
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99 * @param aaEqEditingDialog a reference to CEqualizerEditingDialog |
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100 * @param aAudEqUtility a reference to CAudioEqualizerUtility |
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101 * @param aPresetIndex the index of the Preset being edited |
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102 * @param aIsActivePreset whether the preset is active or not? |
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103 * @param aBandIndex the index of the Frequncy band |
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104 * @param aContainerRect the CEqualizerFreqBandContainer rectangle |
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105 */ |
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106 CEqualizerFreqBand(CEqualizerEditingDialog* aEqEditingDialog,CAudioEqualizerUtility*& aAudEqUtility, |
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107 const TInt aPresetIndex, const TBool aIsActivePreset, |
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108 const TInt aBandIndex, |
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109 TRect& aContainerRect); |
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110 |
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111 /* |
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112 * Second Phase Constructor |
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113 */ |
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114 void ConstructL(); |
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115 |
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116 private: // New functions |
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117 /** |
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118 *This function is called to load the bitmaps from the icons file |
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119 */ |
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120 void LoadBitmapsL(); |
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121 |
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122 /** |
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123 * This member is called by the Equalizer UI to update the new band |
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124 * level in the engine |
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125 * a new preset. |
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126 * @ since Series 60 3.0 |
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127 * lastIncFlag : Flag which indicates that the slider has reached the |
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128 * the limits |
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129 */ |
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130 void UpdateBandLevelInEngineL(TBool lastIncFlag); |
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131 public: // New functions |
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132 /** |
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133 * This function is used to set new values for CAudioEqualizerUtility* |
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134 * @since 3.0 |
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135 * @param aAudEqUtility New pointer to CAudioEqualizerUtility |
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136 */ |
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137 void SetAudioEqualizerL(CAudioEqualizerUtility* aAudEqUtility); |
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138 |
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139 #ifdef RD_SCALABLE_UI_V2 |
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140 /** |
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141 * This function is used by the frequency band container to send |
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142 * pointer events to individual bands |
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143 * @since 3.2 |
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144 * @param aPointerEvent pointer event |
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145 */ |
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146 void HandlePointerEventL(const TPointerEvent& aPointerEvent); |
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147 #endif //RD_SCALABLE_UI_V2 |
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148 |
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149 private: // Functions from base classes |
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150 /** |
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151 * From CCoeControl Called to draw a control |
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152 */ |
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153 void Draw(const TRect& aRect) const; |
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154 /** |
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155 * From CCoeControl Called when the control's size is changed |
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156 */ |
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157 void SizeChanged(); |
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158 /** |
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159 * From CCoeControl Called when a control's focus is changed |
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160 */ |
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161 void FocusChanged(TDrawNow aDrawNow); |
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162 |
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163 /** |
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164 * From CCoeControl |
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165 * This function is called when there is a skin change or |
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166 * change in the layout |
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167 */ |
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168 void HandleResourceChange(TInt aType); |
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169 |
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170 private: //Data |
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171 //Pointers to hold the equalizer backgroung bitmap and mask |
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172 CFbsBitmap * iBgBitmap; |
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173 CFbsBitmap * iBgBitmapMask; |
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174 |
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175 //Pointers to hold the equalizer scale bitmap and mask |
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176 CFbsBitmap * iSliderBitmap; |
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177 CFbsBitmap * iSliderBitmapMask; |
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178 |
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179 // Stores the zero position of mover |
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180 TInt iZeroPos; |
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181 // Minimum frequency band decibel level |
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182 TInt32 iMinBandLevel; |
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183 // Maximum frequency band decibel level |
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184 TInt32 iMaxBandLevel; |
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185 // Used to store a pointer to CEqualizerEditingDialog |
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186 CEqualizerEditingDialog* iEqEditingDialog; |
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187 // Used to store a pointer to CAudioEqualizerUtility |
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188 CAudioEqualizerUtility* iAudEqUtility; |
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189 // Used to store a pointer to CAudioEqualizer |
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190 CAudioEqualizer* iAudioEqualizer; |
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191 // The index of the preset in the array returned by |
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192 // CAudioEqualizerUtility::Presets() |
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193 const TInt iPresetIndex; |
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194 // Used to store the name of the preset |
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195 TPresetName iPresetName; |
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196 // Whether the preset displayed is an active preset? |
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197 const TBool iIsActivePreset; |
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198 // Index of the Frequency Band as passed to Engine |
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199 const TInt iBandIndex; |
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200 // Position of the mover |
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201 TInt iMoverPos; |
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202 //Stores the container's rect value |
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203 TRect& iContainerRect; |
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204 //Stores the freq band Scale's rectangle |
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205 TRect iScaleRect; |
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206 //Stores the slider's rectangle |
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207 TRect iSliderRect; |
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208 //Stores the background rectangle |
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209 TRect iBackgroundRect; |
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210 //Stores the step count of the slider |
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211 TInt32 iStepCount; |
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212 }; |
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213 |
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214 |
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215 #endif //EQUALIZERFREQBAND_H |
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216 // End of File |
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