/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the Qt Designer of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "previewframe.h"+
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#include "previewwidget.h"+
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+
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#include <QtCore/QCoreApplication>+
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#include <QtCore/QDebug>+
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#include <QtGui/QPainter>+
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#include <QtGui/QMdiArea>+
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#include <QtGui/QMdiSubWindow>+
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#include <QtGui/QPaintEvent>+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace qdesigner_internal {+
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+
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    class PreviewMdiArea: public QMdiArea {+
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    public:+
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        PreviewMdiArea(QWidget *parent = 0) : QMdiArea(parent) {}+
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    protected:+
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        bool viewportEvent ( QEvent * event );+
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    };+
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+
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    bool PreviewMdiArea::viewportEvent (QEvent * event) {+
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        if (event->type() != QEvent::Paint)+
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            return QMdiArea::viewportEvent (event);+
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        QWidget *paintWidget = viewport();+
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        QPainter p(paintWidget);+
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        p.fillRect(rect(), paintWidget->palette().color(backgroundRole()).dark());+
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        p.setPen(QPen(Qt::white));+
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        //: Palette editor background+
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        p.drawText(0, height() / 2,  width(), height(), Qt::AlignHCenter,+
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                   QCoreApplication::translate("qdesigner_internal::PreviewMdiArea", "The moose in the noose\nate the goose who was loose."));+
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        return true;+
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    }+
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+
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PreviewFrame::PreviewFrame(QWidget *parent) :+
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    QFrame(parent),+
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    m_mdiArea(new PreviewMdiArea(this))+
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{+
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    m_mdiArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);+
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    m_mdiArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);+
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    setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);+
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    setLineWidth(1);+
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+
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    QVBoxLayout *vbox = new QVBoxLayout(this);+
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    vbox->setMargin(0);+
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    vbox->addWidget(m_mdiArea);+
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+
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    setMinimumSize(ensureMdiSubWindow()->minimumSizeHint());+
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}+
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+
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void PreviewFrame::setPreviewPalette(const QPalette &pal)+
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{+
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    ensureMdiSubWindow()->widget()->setPalette(pal);+
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}+
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+
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void PreviewFrame::setSubWindowActive(bool active)+
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{+
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    m_mdiArea->setActiveSubWindow (active ? ensureMdiSubWindow() : static_cast<QMdiSubWindow *>(0));+
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}+
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+
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QMdiSubWindow *PreviewFrame::ensureMdiSubWindow()+
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{+
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    if (!m_mdiSubWindow) {+
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        PreviewWidget *previewWidget = new PreviewWidget(m_mdiArea);+
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        m_mdiSubWindow = m_mdiArea->addSubWindow(previewWidget, Qt::WindowTitleHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint);+
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        m_mdiSubWindow->move(10,10);+
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        m_mdiSubWindow->showMaximized();+
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    }+
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+
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    const Qt::WindowStates state = m_mdiSubWindow->windowState();+
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    if (state & Qt::WindowMinimized)+
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        m_mdiSubWindow->setWindowState(state & ~Qt::WindowMinimized);+
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+
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    return m_mdiSubWindow;+
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}+
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}+
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+
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QT_END_NAMESPACE+
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