Mac-4.7.4/tools/designer/src/components/formeditor/default_container.cpp

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**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the Qt Designer of the Qt Toolkit.
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
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** file. Please review the following information to ensure the GNU General
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#include "default_container.h"
#include <QtCore/QDebug>

QT_BEGIN_NAMESPACE

template <class Container>
static inline void setCurrentContainerIndex(int index, Container *container)
{
    const bool blocked = container->signalsBlocked();
    container->blockSignals(true);
    container->setCurrentIndex(index);
    container->blockSignals(blocked);
}

static inline void ensureNoParent(QWidget *widget)
{
    if (widget->parentWidget())
        widget->setParent(0);
}

static const char *PageLabel = "Page";

namespace qdesigner_internal {

// --------- QStackedWidgetContainer
QStackedWidgetContainer::QStackedWidgetContainer(QStackedWidget *widget, QObject *parent) :
    QObject(parent),
    m_widget(widget)
{
}

void QStackedWidgetContainer::setCurrentIndex(int index)
{
    setCurrentContainerIndex(index, m_widget);
}

void QStackedWidgetContainer::addWidget(QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->addWidget(widget);
}

void QStackedWidgetContainer::insertWidget(int index, QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->insertWidget(index, widget);
}

void QStackedWidgetContainer::remove(int index)
{
    m_widget->removeWidget(widget(index));
}

// --------- QTabWidgetContainer
QTabWidgetContainer::QTabWidgetContainer(QTabWidget *widget, QObject *parent) :
    QObject(parent),
    m_widget(widget)
{
}

void QTabWidgetContainer::setCurrentIndex(int index)
{
    setCurrentContainerIndex(index, m_widget);
}

void QTabWidgetContainer::addWidget(QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->addTab(widget, QString::fromUtf8(PageLabel));
}

void QTabWidgetContainer::insertWidget(int index, QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->insertTab(index, widget, QString::fromUtf8(PageLabel));
}

void QTabWidgetContainer::remove(int index)
{
    m_widget->removeTab(index);
}

// ------------------- QToolBoxContainer
QToolBoxContainer::QToolBoxContainer(QToolBox *widget, QObject *parent) :
    QObject(parent),
    m_widget(widget)
{
}

void QToolBoxContainer::setCurrentIndex(int index)
{
    setCurrentContainerIndex(index, m_widget);
}

void QToolBoxContainer::addWidget(QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->addItem(widget, QString::fromUtf8(PageLabel));
}

void QToolBoxContainer::insertWidget(int index, QWidget *widget)
{
    ensureNoParent(widget);
    m_widget->insertItem(index, widget, QString::fromUtf8(PageLabel));
}

void QToolBoxContainer::remove(int index)
{
    m_widget->removeItem(index);
}

// ------------------- QScrollAreaContainer
// We pass on active=true only if there are no children yet.
// If there are children, it is a legacy custom widget QScrollArea that has an internal,
// unmanaged child, in which case we deactivate the extension (otherwise we crash).
// The child will then not show up in the task menu

QScrollAreaContainer::QScrollAreaContainer(QScrollArea *widget, QObject *parent) :
    QObject(parent),
    SingleChildContainer<QScrollArea>(widget, widget->widget() == 0)
{
}
// ------------------- QDockWidgetContainer
QDockWidgetContainer::QDockWidgetContainer(QDockWidget *widget, QObject *parent) :
    QObject(parent),
    SingleChildContainer<QDockWidget>(widget)
{
}

}

QT_END_NAMESPACE