remotecontrol.cpp Example File

remotecontrol/remotecontrol.cpp
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#include "remotecontrol.h" #include <QDir> #include <QLibraryInfo> #include <QMessageBox> #include <QProcess> #include <QTextStream> RemoteControl::RemoteControl(QWidget *parent, Qt::WindowFlags flags) : QMainWindow(parent, flags) { ui.setupUi(this); connect(ui.indexLineEdit, SIGNAL(returnPressed()), this, SLOT(on_indexButton_clicked())); connect(ui.identifierLineEdit, SIGNAL(returnPressed()), this, SLOT(on_identifierButton_clicked())); connect(ui.urlLineEdit, SIGNAL(returnPressed()), this, SLOT(on_urlButton_clicked())); QString rc; QTextStream(&rc) << QLatin1String("qthelp://org.qt-project.qtdoc.") << (QT_VERSION >> 16) << ((QT_VERSION >> 8) & 0xFF) << (QT_VERSION & 0xFF) << QLatin1String("/qtdoc/index.html"); ui.startUrlLineEdit->setText(rc); process = new QProcess(this); connect(process, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(helpViewerClosed())); } RemoteControl::~RemoteControl() { if (process->state() == QProcess::Running) { process->terminate(); process->waitForFinished(3000); } } void RemoteControl::on_actionQuit_triggered() { close(); } void RemoteControl::on_launchButton_clicked() { if (process->state() == QProcess::Running) return; QString app = QLibraryInfo::location(QLibraryInfo::BinariesPath) + QDir::separator(); #if !defined(Q_OS_MAC) app += QLatin1String("assistant"); #else app += QLatin1String("Assistant.app/Contents/MacOS/Assistant"); #endif ui.contentsCheckBox->setChecked(true); ui.indexCheckBox->setChecked(true); ui.bookmarksCheckBox->setChecked(true); QStringList args; args << QLatin1String("-enableRemoteControl"); process->start(app, args); if (!process->waitForStarted()) { QMessageBox::critical(this, tr("Remote Control"), tr("Could not start Qt Assistant from %1.").arg(app)); return; } if (!ui.startUrlLineEdit->text().isEmpty()) sendCommand(QLatin1String("SetSource ") + ui.startUrlLineEdit->text()); ui.launchButton->setEnabled(false); ui.startUrlLineEdit->setEnabled(false); ui.actionGroupBox->setEnabled(true); } void RemoteControl::sendCommand(const QString &cmd) { if (process->state() != QProcess::Running) return; process->write(cmd.toLocal8Bit() + '\n'); } void RemoteControl::on_indexButton_clicked() { sendCommand(QLatin1String("ActivateKeyword ") + ui.indexLineEdit->text()); } void RemoteControl::on_identifierButton_clicked() { sendCommand(QLatin1String("ActivateIdentifier ") + ui.identifierLineEdit->text()); } void RemoteControl::on_urlButton_clicked() { sendCommand(QLatin1String("SetSource ") + ui.urlLineEdit->text()); } void RemoteControl::on_syncContentsButton_clicked() { sendCommand(QLatin1String("SyncContents")); } void RemoteControl::on_contentsCheckBox_toggled(bool checked) { sendCommand(checked ? QLatin1String("Show Contents") : QLatin1String("Hide Contents")); } void RemoteControl::on_indexCheckBox_toggled(bool checked) { sendCommand(checked ? QLatin1String("Show Index") : QLatin1String("Hide Index")); } void RemoteControl::on_bookmarksCheckBox_toggled(bool checked) { sendCommand(checked ? QLatin1String("Show Bookmarks") : QLatin1String("Hide Bookmarks")); } void RemoteControl::helpViewerClosed() { ui.launchButton->setEnabled(true); ui.startUrlLineEdit->setEnabled(true); ui.actionGroupBox->setEnabled(false); }