/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the Qt Designer of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

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** $QT_END_LICENSE$

**

****************************************************************************/

#include "qdesigner_dockwidget_p.h"

#include "layoutinfo_p.h"

#include <QtDesigner/QDesignerFormWindowInterface>

#include <QtDesigner/QDesignerFormEditorInterface>

#include <QtDesigner/QDesignerContainerExtension>

#include <QtDesigner/QExtensionManager>

#include <QtDesigner/QDesignerFormWindowCursorInterface>

#include <QtGui/QMainWindow>

#include <QtGui/QLayout>

QT_BEGIN_NAMESPACE

QDesignerDockWidget::QDesignerDockWidget(QWidget *parent)

    : QDockWidget(parent)

{

}

QDesignerDockWidget::~QDesignerDockWidget()

{

}

bool QDesignerDockWidget::docked() const

{

    return qobject_cast<QMainWindow*>(parentWidget()) != 0;

}

void QDesignerDockWidget::setDocked(bool b)

{

    if (QMainWindow *mainWindow = findMainWindow()) {

        QDesignerFormEditorInterface *core = formWindow()->core();

        QDesignerContainerExtension *c;

        c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), mainWindow);

        if (b && !docked()) {

            // Dock it

            // ### undo/redo stack

            setParent(0);

            c->addWidget(this);

            formWindow()->selectWidget(this, formWindow()->cursor()->isWidgetSelected(this));

        } else if (!b && docked()) {

            // Undock it

            for (int i = 0; i < c->count(); ++i) {

                if (c->widget(i) == this) {

                    c->remove(i);

                    break;

                }

            }

            // #### restore the position

            setParent(mainWindow->centralWidget());

            show();

            formWindow()->selectWidget(this, formWindow()->cursor()->isWidgetSelected(this));

        }

    }

}

Qt::DockWidgetArea QDesignerDockWidget::dockWidgetArea() const

{

    if (QMainWindow *mainWindow = qobject_cast<QMainWindow*>(parentWidget()))

        return mainWindow->dockWidgetArea(const_cast<QDesignerDockWidget*>(this));

    return Qt::LeftDockWidgetArea;

}

void QDesignerDockWidget::setDockWidgetArea(Qt::DockWidgetArea dockWidgetArea)

{

    if (QMainWindow *mainWindow = qobject_cast<QMainWindow*>(parentWidget())) {

        if ((dockWidgetArea != Qt::NoDockWidgetArea)

            && isAreaAllowed(dockWidgetArea)) {

            mainWindow->addDockWidget(dockWidgetArea, this);

        }

    }

}

bool QDesignerDockWidget::inMainWindow() const

{

    QMainWindow *mw = findMainWindow();

    if (mw && !mw->centralWidget()->layout()) {

        if (mw == parentWidget())

            return true;

        if (mw->centralWidget() == parentWidget())

            return true;

    }

    return false;

}

QDesignerFormWindowInterface *QDesignerDockWidget::formWindow() const

{

    return QDesignerFormWindowInterface::findFormWindow(const_cast<QDesignerDockWidget*>(this));

}

QMainWindow *QDesignerDockWidget::findMainWindow() const

{

    if (QDesignerFormWindowInterface *fw = formWindow())

        return qobject_cast<QMainWindow*>(fw->mainContainer());

    return 0;

}

QT_END_NAMESPACE