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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: Equalizer widget for Music Player playback view. |
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15 * |
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16 */ |
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17 |
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18 // System includes |
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19 #include <QStringList> |
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20 #include <hblabel.h> |
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21 #include <hbaction.h> |
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22 #include <hbradiobuttonlist.h> |
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23 |
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24 // User includes |
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25 #include "mpequalizerwidget.h" |
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26 #include "mpequalizerwrapper.h" |
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27 #include "mptrace.h" |
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28 |
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29 // CONSTANTS |
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30 const int KEqualizerPresetNone = -1; |
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31 |
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32 /*! |
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33 \class MpEqualizerWidget |
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34 \brief Provide radio button list to select a predefined eq. preset |
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35 */ |
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36 |
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37 /*! |
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38 Constructs the Equalizer widget. |
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39 */ |
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40 MpEqualizerWidget::MpEqualizerWidget() : |
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41 mEqualizerWrapper(0), |
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42 mPresetsList(0), |
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43 mOriginalPreset(KEqualizerPresetNone), |
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44 mEqualizerReady(false) |
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45 { |
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46 TX_ENTRY |
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47 |
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48 initialize(); |
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49 |
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50 TX_EXIT |
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51 } |
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52 |
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53 /*! |
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54 Destructs the widget. |
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55 */ |
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56 MpEqualizerWidget::~MpEqualizerWidget() |
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57 { |
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58 TX_ENTRY |
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59 |
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60 delete mEqualizerWrapper; |
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61 |
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62 TX_EXIT |
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63 } |
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64 |
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65 /*! |
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66 Initialize dialog by loading the EqualizerUtility. |
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67 */ |
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68 void MpEqualizerWidget::initialize() |
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69 { |
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70 TX_ENTRY |
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71 |
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72 mEqualizerWrapper = new MpEqualizerWrapper( this ); |
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73 |
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74 connect( mEqualizerWrapper, |
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75 SIGNAL( equalizerReady() ), |
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76 this, |
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77 SLOT( equalizerReady() ) ); |
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78 |
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79 TX_EXIT |
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80 } |
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81 |
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82 /*! |
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83 Prepare dialog by loading the presets list. |
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84 */ |
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85 void MpEqualizerWidget::prepareDialog() |
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86 { |
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87 TX_ENTRY |
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88 |
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89 setTimeout(NoTimeout); |
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90 setDismissPolicy(HbDialog::NoDismiss); |
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91 setFrameType(HbPopup::Strong); |
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92 setHeadingWidget(new HbLabel(hbTrId("txt_mus_title_select_preset"))); |
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93 setPrimaryAction(new HbAction(hbTrId("txt_common_button_ok"))); |
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94 setSecondaryAction(new HbAction(hbTrId("txt_common_button_cancel"))); |
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95 |
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96 if ( mEqualizerReady ) { |
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97 mOriginalPreset = mEqualizerWrapper->activePreset(); |
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98 QStringList listItems = mEqualizerWrapper->presetNames(); |
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99 listItems.prepend(hbTrId("txt_mus_list_off")); |
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100 |
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101 int presetSelected; |
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102 if (mOriginalPreset == KEqualizerPresetNone) { |
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103 presetSelected = 0; //First list item corresponds to "OFF" |
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104 } |
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105 else { |
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106 presetSelected = mOriginalPreset; |
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107 } |
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108 |
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109 mPresetsList = new HbRadioButtonList(listItems, presetSelected, HbRadioButtonList::NoPreview, this); |
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110 setContentWidget( mPresetsList ); //mPresetsList now owned by HbDialog |
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111 |
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112 connect( mPresetsList, |
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113 SIGNAL(itemSelected(int)), |
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114 this, |
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115 SLOT(presetSelected(int))); |
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116 } |
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117 |
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118 connect( secondaryAction(), |
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119 SIGNAL( triggered(bool) ), |
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120 this, |
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121 SLOT( cancelSelected(bool) ) ); |
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122 |
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123 connect( primaryAction(), |
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124 SIGNAL( triggered(bool) ), |
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125 this, |
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126 SLOT( okSelected(bool) ) ); |
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127 |
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128 TX_EXIT |
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129 } |
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130 |
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131 /*! |
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132 Slot to handle when a preset has been selected. |
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133 */ |
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134 void MpEqualizerWidget::presetSelected(int index) |
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135 { |
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136 TX_ENTRY |
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137 |
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138 if (mEqualizerWrapper) { |
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139 if (index == 0) { |
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140 mEqualizerWrapper->disableEqualizer(); |
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141 } |
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142 else{ |
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143 mEqualizerWrapper->applyPreset( index ); |
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144 } |
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145 } |
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146 |
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147 TX_EXIT |
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148 } |
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149 |
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150 /*! |
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151 Slot to handle when Cancel is selected |
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152 */ |
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153 void MpEqualizerWidget::cancelSelected(bool checked) |
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154 { |
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155 TX_ENTRY |
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156 Q_UNUSED(checked); |
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157 |
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158 if (mEqualizerWrapper && mPresetsList) { |
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159 // Return to the original Preset |
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160 if (mOriginalPreset != mEqualizerWrapper->activePreset()) { |
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161 if (mOriginalPreset == KEqualizerPresetNone) { |
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162 mEqualizerWrapper->disableEqualizer(); |
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163 mPresetsList->setSelected( 0 ); //First list item corresponds to "OFF" |
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164 } |
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165 else { |
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166 mEqualizerWrapper->applyPreset( mOriginalPreset ); |
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167 mPresetsList->setSelected( mOriginalPreset ); |
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168 } |
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169 } |
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170 } |
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171 |
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172 TX_EXIT |
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173 } |
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174 |
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175 /*! |
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176 Slot to handle when Ok is selected |
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177 */ |
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178 void MpEqualizerWidget::okSelected(bool checked) |
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179 { |
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180 TX_ENTRY |
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181 Q_UNUSED(checked); |
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182 |
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183 //Update original preset |
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184 if (mEqualizerWrapper) { |
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185 mOriginalPreset = mEqualizerWrapper->activePreset(); |
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186 } |
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187 |
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188 TX_EXIT |
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189 } |
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190 |
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191 /*! |
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192 Equalizer utility is ready |
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193 */ |
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194 void MpEqualizerWidget::equalizerReady() |
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195 { |
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196 TX_ENTRY |
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197 |
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198 mEqualizerReady = true; |
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199 |
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200 TX_EXIT |
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201 } |
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202 |
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203 //End of File |