qtoolbox.cpp

奇趣公司比较新的qt/emd版本

    Q_Q(QToolBox);
    QToolBoxButton *tb = ::qobject_cast<QToolBoxButton*>(q->sender());
    QWidget* item = 0;
    for (QToolBoxPrivate::PageList::ConstIterator i = pageList.constBegin(); i != pageList.constEnd(); ++i)
        if ((*i).button == tb) {
            item = (*i).widget;
            break;
        }

    q->setCurrentIndex(q->indexOf(item));
}

/*!
    \property QToolBox::count
    \brief The number of items contained in the toolbox.
*/

int QToolBox::count() const
{
    Q_D(const QToolBox);
    return d->pageList.count();
}

void QToolBox::setCurrentIndex(int index)
{
    Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (!c || d->currentPage == c)
        return;

    c->button->setSelected(true);
    if (d->currentPage) {
        d->currentPage->sv->hide();
        d->currentPage->button->setSelected(false);
    }
    d->currentPage = c;
    d->currentPage->sv->show();
    d->updateTabs();
    emit currentChanged(index);
}

void QToolBoxPrivate::relayout()
{
    Q_Q(QToolBox);
    delete layout;
    layout = new QVBoxLayout(q);
    for (QToolBoxPrivate::PageList::ConstIterator i = pageList.constBegin(); i != pageList.constEnd(); ++i) {
        layout->addWidget((*i).button);
        layout->addWidget((*i).sv);
    }
}

void QToolBoxPrivate::_q_widgetDestroyed(QObject *object)
{
    Q_Q(QToolBox);
    // no verification - vtbl corrupted already
    QWidget *p = (QWidget*)object;

    QToolBoxPrivate::Page *c = page(p);
    if (!p || !c)
        return;

    layout->removeWidget(c->sv);
    layout->removeWidget(c->button);
    c->sv->deleteLater(); // page might still be a child of sv
    delete c->button;

    bool removeCurrent = c == currentPage;
    pageList.removeAll(*c);

    if (!pageList.count()) {
        currentPage = 0;
        emit q->currentChanged(-1);
    } else if (removeCurrent) {
        currentPage = 0;
        q->setCurrentIndex(0);
    }
}

/*!
    Removes the item at position \a index from the toolbox. Note that
    the widget is \e not deleted.
*/

void QToolBox::removeItem(int index)
{
    Q_D(QToolBox);
    if (QWidget *w = widget(index)) {
        disconnect(w, SIGNAL(destroyed(QObject*)), this, SLOT(_q_widgetDestroyed(QObject*)));
        w->setParent(this);
        // destroy internal data
        d->_q_widgetDestroyed(w);
        itemRemoved(index);
    }
}


/*!
    \property QToolBox::currentIndex
    \brief The index of the current item, or -1 if the toolbox is empty.

    \sa indexOf(), widget()
*/


int QToolBox::currentIndex() const
{
    Q_D(const QToolBox);
    return d->currentPage ? indexOf(d->currentPage->widget) : -1;
}

/*!
    Returns a pointer to the current widget, or 0 if there is no such item.

    \sa currentIndex(), setCurrentWidget()
*/

QWidget * QToolBox::currentWidget() const
{
    Q_D(const QToolBox);
    return d->currentPage ? d->currentPage->widget : 0;
}

/*!
  Makes\a widget the current widget. The \a widget must be an item in this tool box.

  \sa addItem(), setCurrentIndex(), currentWidget()
 */
void QToolBox::setCurrentWidget(QWidget *widget)
{
    int i = indexOf(widget);
    if (i >= 0)
        setCurrentIndex(i);
    else
        qWarning("QToolBox::setCurrentWidget: widget not contained in tool box");
}

/*!
    Returns the widget at position \a index, or 0 if there is no such
    item.
*/

QWidget *QToolBox::widget(int index) const
{
    Q_D(const QToolBox);
    if (index < 0 || index >= (int) d->pageList.size())
        return 0;
    return d->pageList.at(index).widget;
}

/*!
    Returns the index of \a widget, or -1 if the item does not
    exist.
*/

int QToolBox::indexOf(QWidget *widget) const
{
    Q_D(const QToolBox);
    QToolBoxPrivate::Page *c = (widget ? d->page(widget) : 0);
    return c ? d->pageList.indexOf(*c) : -1;
}

/*!
    If \a enabled is true then the item at position \a index is enabled; otherwise
    the item at position \a index is disabled.
*/

void QToolBox::setItemEnabled(int index, bool enabled)
{
    Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (!c)
        return;

    c->button->setEnabled(enabled);
    if (!enabled && c == d->currentPage) {
        int curIndexUp = index;
        int curIndexDown = curIndexUp;
        const int count = d->pageList.count();
        while (curIndexUp > 0 || curIndexDown < count-1) {
            if (curIndexDown < count-1) {
                if (d->page(++curIndexDown)->button->isEnabled()) {
                    index = curIndexDown;
                    break;
                }
            }
            if (curIndexUp > 0) {
                if (d->page(--curIndexUp)->button->isEnabled()) {
                    index = curIndexUp;
                    break;
                }
            }
        }
        setCurrentIndex(index);
    }
}


/*!
    Sets the text of the item at position \a index to \a text.

    If the provided text contains an ampersand character ('&'), a
    mnemonic is automatically created for it. The character that
    follows the '&' will be used as the shortcut key. Any previous
    mnemonic will be overwritten, or cleared if no mnemonic is defined
    by the text. See the \l {QShortcut#mnemonic}{QShortcut}
    documentation for details (to display an actual ampersand, use
    '&&').
*/

void QToolBox::setItemText(int index, const QString &text)
{
    Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (c)
        c->setText(text);
}

/*!
    Sets the icon of the item at position \a index to \a icon.
*/

void QToolBox::setItemIcon(int index, const QIcon &icon)
{
    Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (c)
        c->setIcon(icon);
}

#ifndef QT_NO_TOOLTIP
/*!
    Sets the tooltip of the item at position \a index to \a toolTip.
*/

void QToolBox::setItemToolTip(int index, const QString &toolTip)
{
    Q_D(QToolBox);
    QToolBoxPrivate::Page *c = d->page(index);
    if (c)
        c->setToolTip(toolTip);
}
#endif // QT_NO_TOOLTIP

/*!
    Returns true if the item at position \a index is enabled; otherwise returns false.
*/

bool QToolBox::isItemEnabled(int index) const
{
    Q_D(const QToolBox);
    const QToolBoxPrivate::Page *c = d->page(index);
    return c && c->button->isEnabled();
}

/*!
    Returns the text of the item at position \a index, or an empty string if
    \a index is out of range.
*/

QString QToolBox::itemText(int index) const
{
    Q_D(const QToolBox);
    const QToolBoxPrivate::Page *c = d->page(index);
    return (c ? c->text() : QString());
}

/*!
    Returns the icon of the item at position \a index, or a null
    icon if \a index is out of range.
*/

QIcon QToolBox::itemIcon(int index) const
{
    Q_D(const QToolBox);
    const QToolBoxPrivate::Page *c = d->page(index);
    return (c ? c->icon() : QIcon());
}

#ifndef QT_NO_TOOLTIP
/*!
    Returns the tooltip of the item at position \a index, or an
    empty string if \a index is out of range.
*/

QString QToolBox::itemToolTip(int index) const
{
    Q_D(const QToolBox);
    const QToolBoxPrivate::Page *c = d->page(index);
    return (c ? c->toolTip() : QString());
}
#endif // QT_NO_TOOLTIP

/*! \reimp */
void QToolBox::showEvent(QShowEvent *e)
{
    QWidget::showEvent(e);
}

/*! \reimp */
void QToolBox::changeEvent(QEvent *ev)
{
    Q_D(QToolBox);
    if(ev->type() == QEvent::StyleChange)
        d->updateTabs();
    QFrame::changeEvent(ev);
}

/*!
  This virtual handler is called after a new item was added or
  inserted at position \a index.

  \sa itemRemoved()
 */
void QToolBox::itemInserted(int index)
{
    Q_UNUSED(index)
}

/*!
  This virtual handler is called after an item was removed from
  position \a index.

  \sa itemInserted()
 */
void QToolBox::itemRemoved(int index)
{
    Q_UNUSED(index)
}

/*!
    \fn void QToolBox::setItemLabel(int index, const QString &text)

    Use setItemText() instead.
*/

/*!
    \fn QString QToolBox::itemLabel(int index) const

    Use itemText() instead.
*/

/*!
    \fn QWidget *QToolBox::currentItem() const

    Use widget(currentIndex()) instead.
*/

/*!
    \fn void QToolBox::setCurrentItem(QWidget *widget)

    Use setCurrentIndex(indexOf(widget)) instead.
*/

/*!
    \fn void QToolBox::setItemIconSet(int index, const QIcon &icon)

    Use setItemIcon() instead.
*/

/*!
    \fn QIcon QToolBox::itemIconSet(int index) const

    Use itemIcon() instead.
*/

/*!
    \fn int QToolBox::removeItem(QWidget *widget)

    Use toolbox->removeItem(toolbox->indexOf(widget)) instead.
*/

/*!
    \fn QWidget *QToolBox::item(int index) const

    Use widget() instead.
*/

/*!
    \fn void QToolBox::setMargin(int margin)
    Sets the width of the margin around the contents of the widget to \a margin.

    Use QWidget::setContentsMargins() instead.
    \sa margin(), QWidget::setContentsMargins()
*/

/*!
    \fn int QToolBox::margin() const
    Returns the with of the the margin around the contents of the widget.

    Use QWidget::getContentsMargins() instead.
    \sa setMargin(), QWidget::getContentsMargins()
*/

/*! \reimp */
bool QToolBox::event(QEvent *e)
{
    return QFrame::event(e);
}

#include "moc_qtoolbox.cpp"

#endif //QT_NO_TOOLBOX