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POHow could I add a Rectangle in my phonon media player?
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copied!<p>Now This is a simple media player which is based on phonon(QT).</p> <pre><code>#include <QApplication> #include <QWidget> #include <phonon> #include <QUrl> #include <QObject> #include <QVBoxLayout> #include <QHBoxLayout> #include <QLabel> int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget *widget = new QWidget; widget->setWindowTitle("Media Player"); widget->resize(400,400); Phonon::MediaObject *media = new Phonon::MediaObject; media->setCurrentSource(Phonon::MediaSource("test.mpg")); Phonon::VideoWidget *vwidget = new Phonon::VideoWidget(widget); Phonon::createPath(media, vwidget); vwidget->setAspectRatio(Phonon::VideoWidget::AspectRatioAuto); Phonon::AudioOutput *aOutput = new Phonon::AudioOutput(Phonon::VideoCategory); Phonon::createPath(media, aOutput); QLabel *label = new QLabel("Volume: "); Phonon::VolumeSlider *volumeSlider = new Phonon::VolumeSlider; volumeSlider->setAudioOutput(aOutput); volumeSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum); Phonon::SeekSlider *seekSlider = new Phonon::SeekSlider; seekSlider->setMediaObject(media); QHBoxLayout *hLayout = new QHBoxLayout; hLayout->addWidget(label); hLayout->addWidget(volumeSlider); hLayout->addStretch(); QVBoxLayout *vLayout = new QVBoxLayout; vLayout->addWidget(vwidget); vLayout->addWidget(seekSlider); vLayout->addLayout(hLayout); widget->setLayout(vLayout); widget->show(); media->play(); return app.exec(); } </code></pre> <p>And now I want to add some sign in the current widget when it is playing video. How can I implement this? For example, if I want to add a rectangle in the specified position over the current frame. How could I do that?</p> <p>Now I have another try to do this: I define a class named MyVideoWidget which is inhred from Phonon::VideoWidget. Just like this:</p> <pre><code>class MyVideoWidget : public Phonon::VideoWidget </code></pre> <p>And then I overload the function paintEvent like this:</p> <pre><code>void MyVideoWidget::paintEvent (QPaintEvent * event) { Phonon::VideoWidget::paintEvent (event); QPainter painter (this); QPen pen; pen.setJoinStyle(Qt::MiterJoin); pen.setWidth(5); pen.setColor(QColor::fromRgb(255,255, 255)); painter.setPen(pen); painter.drawLine (QPoint (20, 20), QPoint (100, 20)); painter.drawLine (QPoint (20, 100), QPoint (100, 100)); } </code></pre> <p>But is still cannot work... Does anyone has some good idea?</p>

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