source: trunk/doc/src/snippets/clipboard/clipwindow.cpp@ 624

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** GNU General Public License Usage
** 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 and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at [email protected].
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtGui>

#include "clipwindow.h"

ClipWindow::ClipWindow(QWidget *parent)
    : QMainWindow(parent)
{
    clipboard = QApplication::clipboard();

    QWidget *centralWidget = new QWidget(this);
    QWidget *currentItem = new QWidget(centralWidget);
    QLabel *mimeTypeLabel = new QLabel(tr("MIME types:"), currentItem);
    mimeTypeCombo = new QComboBox(currentItem);
    QLabel *dataLabel = new QLabel(tr("Data:"), currentItem);
    dataInfoLabel = new QLabel("", currentItem);

    previousItems = new QListWidget(centralWidget);

//! [0]
    connect(clipboard, SIGNAL(dataChanged()), this, SLOT(updateClipboard()));
//! [0]
    connect(mimeTypeCombo, SIGNAL(activated(const QString &)),
            this, SLOT(updateData(const QString &)));

    QVBoxLayout *currentLayout = new QVBoxLayout(currentItem);
    currentLayout->addWidget(mimeTypeLabel);
    currentLayout->addWidget(mimeTypeCombo);
    currentLayout->addWidget(dataLabel);
    currentLayout->addWidget(dataInfoLabel);
    currentLayout->addStretch(1);

    QHBoxLayout *mainLayout = new QHBoxLayout(centralWidget);
    mainLayout->addWidget(currentItem, 1);
    mainLayout->addWidget(previousItems);

    setCentralWidget(centralWidget);
    setWindowTitle(tr("Clipboard"));
}

//! [1]
void ClipWindow::updateClipboard()
{
    QStringList formats = clipboard->mimeData()->formats();
    QByteArray data = clipboard->mimeData()->data(format);
//! [1]

    mimeTypeCombo->clear();
    mimeTypeCombo->insertStringList(formats);

    int size = clipboard->mimeData()->data(formats[0]).size();
    QListWidgetItem *newItem = new QListWidgetItem(previousItems);
    newItem->setText(tr("%1 (%2 bytes)").arg(formats[0]).arg(size));

    updateData(formats[0]);
//! [2]
}
//! [2]

void ClipWindow::updateData(const QString &format)
{
    QByteArray data = clipboard->mimeData()->data(format);
    dataInfoLabel->setText(tr("%1 bytes").arg(data.size()));
}