C++ Shortcut::shortcut方法代码示例

/*!
    \brief Makes a \a shortcut known to the system under the specified \a id.

    Returns a command object that represents the shortcut in the application and is
    owned by the ActionManager. You can registered several shortcuts with the
    same \a id as long as the \a context is different. In this case
    a trigger of the actual shortcut is forwarded to the registered QShortcut
    for the currently active context.
    A scriptable shortcut can be called from a script without the need for the user
    to interact with it.
*/
Command *ActionManager::registerShortcut(QShortcut *shortcut, const Id &id, const Context &context, bool scriptable)
{
    Shortcut *sc = 0;
    if (CommandPrivate *c = m_instance->d->m_idCmdMap.value(id, 0)) {
        sc = qobject_cast<Shortcut *>(c);
        if (!sc) {
            qWarning() << "registerShortcut: id" << id.name()
                       << "is registered with a different command type.";
            return c;
        }
    } else {
        sc = new Shortcut(id);
        m_instance->d->m_idCmdMap.insert(id, sc);
    }

    if (sc->shortcut()) {
        qWarning() << "registerShortcut: action already registered, id" << id.name() << ".";
        return sc;
    }

    if (!m_instance->d->hasContext(context))
        shortcut->setEnabled(false);
    shortcut->setObjectName(id.toString());
    shortcut->setParent(ICore::mainWindow());
    sc->setShortcut(shortcut);
    sc->setScriptable(scriptable);

    if (context.isEmpty())
        sc->setContext(Context(0));
    else
        sc->setContext(context);

    emit m_instance->commandListChanged();
    emit m_instance->commandAdded(id.toString());

    if (isPresentationModeEnabled())
        connect(sc->shortcut(), SIGNAL(activated()), m_instance->d, SLOT(shortcutTriggered()));
    return sc;
}

/*!
    Removes the knowledge about a shortcut under the specified \a id.

    Usually you do not need to unregister shortcuts. The only valid use case for unregistering
    shortcuts, is for shortcuts that represent user definable actions. If the user removes such an action,
    a corresponding shortcut also has to be unregistered from the action manager,
    to make it disappear from shortcut settings etc.
*/
void ActionManager::unregisterShortcut(Id id)
{
    Shortcut *sc = 0;
    CommandPrivate *c = d->m_idCmdMap.value(id, 0);
    QTC_ASSERT(c, return);
    sc = qobject_cast<Shortcut *>(c);
    if (!sc) {
        qWarning() << "unregisterShortcut: id" << id.name()
                   << "is registered with a different command type.";
        return;
    }
    delete sc->shortcut();
    d->m_idCmdMap.remove(id);
    delete sc;
    emit m_instance->commandListChanged();
}

Command *ActionManagerPrivate::registerShortcut(QShortcut *shortcut, const QString &id, const QList<int> &context)
{
    Shortcut *sc = 0;
    int uid = UniqueIDManager::instance()->uniqueIdentifier(id);

    if (CommandPrivate * c = m_idCmdMap.value(uid, 0)) {
        sc = qobject_cast<Shortcut *>(c);
        if (!sc) {
            qWarning() << "registerShortcut: id" << id << "is registered with a different command type.";
            return c;
        }
    } else {
        sc = new Shortcut(uid);
        m_idCmdMap.insert(uid, sc);
    }

    if (sc->shortcut()) {
        qWarning() << "registerShortcut: action already registered (id" << id << ".";
        return sc;
    }

    if (!hasContext(context)) {
        shortcut->setEnabled(false);
    }
    shortcut->setObjectName(id);
    shortcut->setParent(m_mainWnd);
    sc->setShortcut(shortcut);

    if (context.isEmpty()) {
        sc->setContext(QList<int>() << 0);
    } else {
        sc->setContext(context);
    }

    sc->setKeySequence(shortcut->key());
    sc->setDefaultKeySequence(QKeySequence());

    return sc;
}