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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "cropimageview.h"
#include <QPainter>
#include <QMouseEvent>
CropImageView::CropImageView(QWidget *parent)
: QWidget(parent)
{
}
void CropImageView::mousePressEvent(QMouseEvent *event)
{
setArea(QRect(event->pos(), m_area.bottomRight()));
update();
}
void CropImageView::mouseMoveEvent(QMouseEvent *event)
{
setArea(QRect(m_area.topLeft(), event->pos()));
update();
}
void CropImageView::mouseReleaseEvent(QMouseEvent *event)
{
mouseMoveEvent(event);
}
void CropImageView::setImage(const QImage &image)
{
m_image = image;
setMinimumSize(image.size());
update();
}
void CropImageView::setArea(const QRect &area)
{
m_area = m_image.rect().intersected(area);
emit cropAreaChanged(m_area);
update();
}
void CropImageView::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
QPainter p(this);
if (!m_image.isNull())
p.drawImage(0, 0, m_image);
if (!m_area.isNull()) {
p.setPen(Qt::white);
p.drawRect(m_area);
QPen redDashes;
redDashes.setColor(Qt::red);
redDashes.setStyle(Qt::DashLine);
p.setPen(redDashes);
p.drawRect(m_area);
}
}
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