/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
**     of its contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtGui>

#include "draglabel.h"

//! [0]
DragLabel::DragLabel(const QString &text, QWidget *parent)
    : QLabel(parent)
{
    QFontMetrics metric(font());
    QSize size = metric.size(Qt::TextSingleLine, text);

    QImage image(size.width() + 12, size.height() + 12,
                 QImage::Format_ARGB32_Premultiplied);
    image.fill(qRgba(0, 0, 0, 0));

    QFont font;
    font.setStyleStrategy(QFont::ForceOutline);
//! [0]

//! [1]
    QLinearGradient gradient(0, 0, 0, image.height()-1);
    gradient.setColorAt(0.0, Qt::white);
    gradient.setColorAt(0.2, QColor(200, 200, 255));
    gradient.setColorAt(0.8, QColor(200, 200, 255));
    gradient.setColorAt(1.0, QColor(127, 127, 200));

    QPainter painter;
    painter.begin(&image);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.setBrush(gradient);
    painter.drawRoundedRect(QRectF(0.5, 0.5, image.width()-1, image.height()-1),
                            25, 25, Qt::RelativeSize);

    painter.setFont(font);
    painter.setBrush(Qt::black);
    painter.drawText(QRect(QPoint(6, 6), size), Qt::AlignCenter, text);
    painter.end();
//! [1]

//! [2]
    setPixmap(QPixmap::fromImage(image));
    m_labelText = text;
}
//! [2]

QString DragLabel::labelText() const
{
    return m_labelText;
}
