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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Mobility Components. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:BSD$ |
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10 ** You may use this file under the terms of the BSD license as follows: |
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11 ** |
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12 ** "Redistribution and use in source and binary forms, with or without |
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13 ** modification, are permitted provided that the following conditions are |
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14 ** met: |
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15 ** * Redistributions of source code must retain the above copyright |
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16 ** notice, this list of conditions and the following disclaimer. |
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17 ** * Redistributions in binary form must reproduce the above copyright |
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18 ** notice, this list of conditions and the following disclaimer in |
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19 ** the documentation and/or other materials provided with the |
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20 ** distribution. |
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21 ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor |
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22 ** the names of its contributors may be used to endorse or promote |
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23 ** products derived from this software without specific prior written |
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24 ** permission. |
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25 ** |
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26 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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27 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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28 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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29 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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30 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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31 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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32 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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33 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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34 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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35 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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36 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
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37 ** $QT_END_LICENSE$ |
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38 ** |
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39 ****************************************************************************/ |
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40 |
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41 #include "playercontrols.h" |
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42 |
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43 #include <QtGui/qboxlayout.h> |
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44 #include <QtGui/qslider.h> |
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45 #include <QtGui/qstyle.h> |
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46 #include <QtGui/qtoolbutton.h> |
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47 #include <QtGui/qcombobox.h> |
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48 |
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49 PlayerControls::PlayerControls(QWidget *parent) |
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50 : QWidget(parent) |
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51 , playerState(QMediaPlayer::StoppedState) |
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52 , playerMuted(false) |
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53 , playButton(0) |
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54 , stopButton(0) |
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55 , nextButton(0) |
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56 , previousButton(0) |
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57 , muteButton(0) |
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58 , volumeSlider(0) |
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59 , rateBox(0) |
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60 { |
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61 playButton = new QToolButton(this); |
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62 playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); |
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63 |
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64 connect(playButton, SIGNAL(clicked()), this, SLOT(playClicked())); |
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65 |
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66 stopButton = new QToolButton(this); |
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67 stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop)); |
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68 stopButton->setEnabled(false); |
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69 |
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70 connect(stopButton, SIGNAL(clicked()), this, SIGNAL(stop())); |
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71 |
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72 nextButton = new QToolButton(this); |
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73 nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward)); |
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74 |
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75 connect(nextButton, SIGNAL(clicked()), this, SIGNAL(next())); |
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76 |
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77 previousButton = new QToolButton(this); |
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78 previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward)); |
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79 |
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80 connect(previousButton, SIGNAL(clicked()), this, SIGNAL(previous())); |
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81 |
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82 muteButton = new QToolButton(this); |
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83 muteButton->setIcon(style()->standardIcon(QStyle::SP_MediaVolume)); |
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84 |
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85 connect(muteButton, SIGNAL(clicked()), this, SLOT(muteClicked())); |
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86 |
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87 volumeSlider = new QSlider(Qt::Horizontal, this); |
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88 |
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89 #ifndef Q_WS_MAEMO_5 |
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90 volumeSlider->setRange(0, 100); |
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91 |
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92 connect(volumeSlider, SIGNAL(sliderMoved(int)), this, SIGNAL(changeVolume(int))); |
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93 #endif |
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94 |
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95 rateBox = new QComboBox(this); |
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96 rateBox->addItem("0.5x", QVariant(0.5)); |
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97 rateBox->addItem("1.0x", QVariant(1.0)); |
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98 rateBox->addItem("2.0x", QVariant(2.0)); |
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99 rateBox->setCurrentIndex(1); |
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100 |
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101 connect(rateBox, SIGNAL(activated(int)), SLOT(updateRate())); |
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102 |
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103 |
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104 QBoxLayout *layout = new QHBoxLayout; |
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105 layout->setMargin(0); |
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106 layout->addWidget(stopButton); |
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107 layout->addWidget(previousButton); |
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108 layout->addWidget(playButton); |
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109 layout->addWidget(nextButton); |
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110 layout->addWidget(muteButton); |
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111 if (volumeSlider) |
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112 layout->addWidget(volumeSlider); |
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113 |
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114 if (rateBox) |
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115 layout->addWidget(rateBox); |
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116 setLayout(layout); |
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117 } |
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118 |
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119 QMediaPlayer::State PlayerControls::state() const |
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120 { |
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121 return playerState; |
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122 } |
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123 |
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124 void PlayerControls::setState(QMediaPlayer::State state) |
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125 { |
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126 if (state != playerState) { |
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127 playerState = state; |
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128 |
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129 switch (state) { |
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130 case QMediaPlayer::StoppedState: |
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131 stopButton->setEnabled(false); |
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132 playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); |
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133 break; |
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134 case QMediaPlayer::PlayingState: |
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135 stopButton->setEnabled(true); |
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136 playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); |
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137 break; |
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138 case QMediaPlayer::PausedState: |
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139 stopButton->setEnabled(true); |
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140 playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); |
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141 break; |
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142 } |
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143 } |
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144 } |
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145 |
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146 int PlayerControls::volume() const |
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147 { |
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148 return volumeSlider ? volumeSlider->value() : 0; |
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149 } |
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150 |
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151 void PlayerControls::setVolume(int volume) |
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152 { |
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153 if (volumeSlider) |
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154 volumeSlider->setValue(volume); |
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155 } |
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156 |
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157 bool PlayerControls::isMuted() const |
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158 { |
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159 return playerMuted; |
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160 } |
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161 |
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162 void PlayerControls::setMuted(bool muted) |
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163 { |
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164 if (muted != playerMuted) { |
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165 playerMuted = muted; |
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166 |
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167 muteButton->setIcon(style()->standardIcon(muted |
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168 ? QStyle::SP_MediaVolumeMuted |
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169 : QStyle::SP_MediaVolume)); |
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170 } |
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171 } |
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172 |
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173 void PlayerControls::playClicked() |
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174 { |
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175 switch (playerState) { |
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176 case QMediaPlayer::StoppedState: |
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177 case QMediaPlayer::PausedState: |
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178 emit play(); |
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179 break; |
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180 case QMediaPlayer::PlayingState: |
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181 emit pause(); |
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182 break; |
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183 } |
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184 } |
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185 |
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186 void PlayerControls::muteClicked() |
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187 { |
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188 emit changeMuting(!playerMuted); |
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189 } |
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190 |
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191 qreal PlayerControls::playbackRate() const |
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192 { |
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193 return rateBox->itemData(rateBox->currentIndex()).toDouble(); |
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194 } |
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195 |
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196 void PlayerControls::setPlaybackRate(float rate) |
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197 { |
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198 for (int i=0; i<rateBox->count(); i++) { |
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199 if (qFuzzyCompare(rate, float(rateBox->itemData(i).toDouble()))) { |
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200 rateBox->setCurrentIndex(i); |
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201 return; |
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202 } |
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203 } |
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204 |
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205 rateBox->addItem( QString("%1x").arg(rate), QVariant(rate)); |
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206 rateBox->setCurrentIndex(rateBox->count()-1); |
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207 } |
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208 |
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209 void PlayerControls::updateRate() |
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210 { |
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211 emit changeRate(playbackRate()); |
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212 } |