main.cpp Example File

activeqt/mediaplayer/main.cpp
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#include <QApplication> #include <QMessageBox> #include <QMainWindow> #include <QDesktopWidget> #include <QVariant> #include <QSettings> #include <QFileDialog> #include <QCommandLineParser> #include "ui_mainwindow.h" static const char geometryKey[] = "Geometry"; class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(); ~MainWindow(); void openMedia(const QString &mediaUrl); public slots: void on_mediaPlayer_PlayStateChange(int newState); void on_actionOpen_triggered(); void on_actionExit_triggered(); void on_actionAbout_triggered(); void on_actionAboutQt_triggered(); private: void updateWindowTitle(const QString &state); Ui::MainWindow m_ui; }; MainWindow::MainWindow() { m_ui.setupUi(this); QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName()); const QByteArray restoredGeometry = settings.value(QLatin1String(geometryKey)).toByteArray(); if (restoredGeometry.isEmpty() || !restoreGeometry(restoredGeometry)) { const QRect availableGeometry = QApplication::desktop()->availableGeometry(this); const QSize size = (availableGeometry.size() * 4) / 5; resize(size); move(availableGeometry.center() - QPoint(size.width(), size.height()) / 2); } m_ui.mediaPlayer->dynamicCall("enableContextMenu", false); m_ui.mediaPlayer->dynamicCall("stretchToFit", true); updateWindowTitle(""); } MainWindow::~MainWindow() { QSettings settings(QSettings::IniFormat, QSettings::UserScope, QCoreApplication::organizationName(), QCoreApplication::applicationName()); settings.setValue(QLatin1String(geometryKey), saveGeometry()); } void MainWindow::on_mediaPlayer_PlayStateChange(int newState) { static const QHash<int, const char *> stateMapping { {1, "Stopped"}, {2, "Paused"}, {3, "Playing"}, {4, "Scanning Forwards"}, {5, "Scanning Backwards"}, {6, "Buffering"}, {7, "Waiting"}, {8, "Media Ended"}, {9, "Transitioning"}, {10, "Ready"}, {11, "Reconnecting"}, }; const char *stateStr = stateMapping.value(newState, ""); updateWindowTitle(tr(stateStr)); } void MainWindow::on_actionOpen_triggered() { QFileDialog fileDialog(this, tr("Open File")); fileDialog.setAcceptMode(QFileDialog::AcceptOpen); fileDialog.setFileMode(QFileDialog::ExistingFile); fileDialog.setMimeTypeFilters({ "application/octet-stream", "video/x-msvideo", "video/mp4", "audio/mpeg", "audio/mp4" }); if (fileDialog.exec() == QDialog::Accepted) openMedia(fileDialog.selectedFiles().first()); } void MainWindow::on_actionExit_triggered() { QCoreApplication::quit(); } void MainWindow::on_actionAbout_triggered() { QMessageBox::about(this, tr("About Media Player"), tr("This Example has been created using the ActiveQt integration into Qt Designer.\n" "It demonstrates the use of QAxWidget to embed the Windows Media Player ActiveX\n" "control into a Qt application.")); } void MainWindow::on_actionAboutQt_triggered() { QMessageBox::aboutQt(this, tr("About Qt")); } void MainWindow::openMedia(const QString &mediaUrl) { if (!mediaUrl.isEmpty()) m_ui.mediaPlayer->dynamicCall("URL", mediaUrl); } void MainWindow::updateWindowTitle(const QString &state) { QString appName = QCoreApplication::applicationName(); QString title = state.isEmpty() ? appName : QString("%1 (%2)").arg(appName, state); setWindowTitle(title); } #include "main.moc" int main(int argc, char *argv[]) { QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QApplication app(argc, argv); QCoreApplication::setApplicationVersion(QT_VERSION_STR); QCoreApplication::setApplicationName(QLatin1String("Active Qt Media Player")); QCoreApplication::setOrganizationName(QLatin1String("QtProject")); MainWindow w; QCommandLineParser parser; parser.setApplicationDescription(QCoreApplication::applicationName()); parser.addHelpOption(); parser.addVersionOption(); parser.addPositionalArgument("file", "The media file to open."); parser.process(app); if (!parser.positionalArguments().isEmpty()) w.openMedia(parser.positionalArguments().constFirst()); w.show(); return app.exec(); }

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