qactiongroup.cpp

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#include "qactiongroup.h"

#ifndef QT_NO_ACTION

#include "qaction_p.h"
#include "qapplication.h"
#include "qevent.h"
#include "qlist.h"

QT_BEGIN_NAMESPACE

class QActionGroupPrivate : public QObjectPrivate
{
    Q_DECLARE_PUBLIC(QActionGroup)
public:
    QActionGroupPrivate() : exclusive(1), enabled(1), visible(1)  { }
    QList<QAction *> actions;
    QPointer<QAction> current;
    uint exclusive : 1;
    uint enabled : 1;
    uint visible : 1;

private:
    void _q_actionTriggered();  //private slot
    void _q_actionChanged();    //private slot
    void _q_actionHovered();    //private slot
};

void QActionGroupPrivate::_q_actionChanged()
{
    Q_Q(QActionGroup);
    QAction *action = qobject_cast<QAction*>(q->sender());
    Q_ASSERT_X(action != 0, "QWidgetGroup::_q_actionChanged", "internal error");
    if(exclusive) {
        if (action->isChecked()) {
            if (action != current) {
                if(current)
                    current->setChecked(false);
                current = action;
            }
        } else if (action == current) {
            current = 0;
        }
    }
}

void QActionGroupPrivate::_q_actionTriggered()
{
    Q_Q(QActionGroup);
    QAction *action = qobject_cast<QAction*>(q->sender());
    Q_ASSERT_X(action != 0, "QWidgetGroup::_q_actionTriggered", "internal error");
    emit q->triggered(action);
    emit q->selected(action);
}

void QActionGroupPrivate::_q_actionHovered()
{
    Q_Q(QActionGroup);
    QAction *action = qobject_cast<QAction*>(q->sender());
    Q_ASSERT_X(action != 0, "QWidgetGroup::_q_actionHovered", "internal error");
    emit q->hovered(action);
}

QActionGroup::QActionGroup(QObject* parent) : QObject(*new QActionGroupPrivate, parent)
{
}

QActionGroup::~QActionGroup()
{
}

QAction *QActionGroup::addAction(QAction* a)
{
    Q_D(QActionGroup);
    if(!d->actions.contains(a)) {
        d->actions.append(a);
        QObject::connect(a, SIGNAL(triggered()), this, SLOT(_q_actionTriggered()));
        QObject::connect(a, SIGNAL(changed()), this, SLOT(_q_actionChanged()));
        QObject::connect(a, SIGNAL(hovered()), this, SLOT(_q_actionHovered()));
    }
    if(!a->d_func()->forceDisabled) {
        a->setEnabled(d->enabled);
        a->d_func()->forceDisabled = false;
    }
    if(!a->d_func()->forceInvisible) {
        a->setVisible(d->visible);
        a->d_func()->forceInvisible = false;
    }
    if(a->isChecked())
        d->current = a;
    QActionGroup *oldGroup = a->d_func()->group;
    if(oldGroup != this) {
        if (oldGroup)
            oldGroup->removeAction(a);
        a->d_func()->group = this;
    }
    return a;
}

QAction *QActionGroup::addAction(const QString &text)
{
    return new QAction(text, this);
}

QAction *QActionGroup::addAction(const QIcon &icon, const QString &text)
{
    return new QAction(icon, text, this);
}

void QActionGroup::removeAction(QAction *action)
{
    Q_D(QActionGroup);
    if (d->actions.removeAll(action)) {
        if (action == d->current)
            d->current = 0;
        QObject::disconnect(action, SIGNAL(triggered()), this, SLOT(_q_actionTriggered()));
        QObject::disconnect(action, SIGNAL(changed()), this, SLOT(_q_actionChanged()));
        QObject::disconnect(action, SIGNAL(hovered()), this, SLOT(_q_actionHovered()));
        action->d_func()->group = 0;
    }
}

QList<QAction*> QActionGroup::actions() const
{
    Q_D(const QActionGroup);
    return d->actions;
}

void QActionGroup::setExclusive(bool b)
{
    Q_D(QActionGroup);
    d->exclusive = b;
}

bool QActionGroup::isExclusive() const
{
    Q_D(const QActionGroup);
    return d->exclusive;
}

void QActionGroup::setEnabled(bool b)
{
    Q_D(QActionGroup);
    d->enabled = b;
    for(QList<QAction*>::const_iterator it = d->actions.constBegin(); it != d->actions.constEnd(); ++it) {
        if(!(*it)->d_func()->forceDisabled) {
            (*it)->setEnabled(b);
            (*it)->d_func()->forceDisabled = false;
        }
    }
}

bool QActionGroup::isEnabled() const
{
    Q_D(const QActionGroup);
    return d->enabled;
}

QAction *QActionGroup::checkedAction() const
{
    Q_D(const QActionGroup);
    return d->current;
}

void QActionGroup::setVisible(bool b)
{
    Q_D(QActionGroup);
    d->visible = b;
    for(QList<QAction*>::Iterator it = d->actions.begin(); it != d->actions.end(); ++it) {
        if(!(*it)->d_func()->forceInvisible) {
            (*it)->setVisible(b);
            (*it)->d_func()->forceInvisible = false;
        }
    }
}

bool QActionGroup::isVisible() const
{
    Q_D(const QActionGroup);
    return d->visible;
}

QT_END_NAMESPACE

#include "moc_qactiongroup.cpp"

#endif // QT_NO_ACTION