构造函数:
myphonon::myphonon(QWidget *parent)
: QMainWindow(parent)
{
creatAction();
creatTooBar();
musicnameLabel = new QLabel(this);
musicnameLabel->setGeometry(10,5,300,30);
//resize(320,100);
audio = new Phonon::MediaObject();
audio->setTickInterval(1);
audioOutput = new Phonon::AudioOutput(Phonon::VideoCategory);
Phonon::createPath(audio,audioOutput);
musicInformationMediaObject = new Phonon::MediaObject(this);
volumeSlider = new Phonon::VolumeSlider(audioOutput,this);
volumeSlider->move(200,40);
volumeSlider->resize(60,20);
//volumeSlider->setStyleSheet("background-color:rgb(0,0,0,100)");
volumeSlider->setFixedWidth(100);//固定音量条大小
seekSlider = new Phonon::SeekSlider(audio,this); //进度滑动条
seekSlider->move(10,40);
seekSlider->resize(170,20);
//seekSlider->setStyleSheet("background-color:rgb(255,255,255,100)");
setMaximumSize(320,100);//固定播放界面大小,不可最大化
setMinimumSize(320,100);
}