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moved rtabmap-ros-pkg project in this project

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git-svn-id: http://rtabmap.googlecode.com/svn/branches/0.3/rtabmap@52 f169173b-cf89-36c8-b27e-44dbe73f0c83
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matlabbe
2011-06-05 14:45:39 +00:00
commit 2d73090f3a
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115
guilib/src/ImageView.cpp Normal file
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/*
* Copyright (C) 2010-2011, Mathieu Labbe and IntRoLab - Universite de Sherbrooke
*
* This file is part of RTAB-Map.
*
* RTAB-Map is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RTAB-Map is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RTAB-Map. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ImageView.h"
#include <QtGui/QWheelEvent>
#include <QtCore/qmath.h>
#include <QtGui/QMenu>
#include <QtGui/QFileDialog>
#include <QtCore/QDir>
#include "utilite/ULogger.h"
namespace rtabmap {
ImageView::ImageView(QWidget * parent) :
QGraphicsView(parent),
_zoom(250),
_minZoom(250),
_savedFileName((QDir::homePath()+ "/") + "picture" + ".png")
{
this->setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
this->setScene(new QGraphicsScene(this));
connect(this->scene(), SIGNAL(sceneRectChanged(const QRectF &)), this, SLOT(updateZoom()));
}
ImageView::~ImageView() {
}
void ImageView::resetZoom()
{
_zoom = _minZoom;
this->setDragMode(QGraphicsView::NoDrag);
}
void ImageView::contextMenuEvent(QContextMenuEvent * e)
{
QMenu menu(tr(""), this);
QAction * saveImage = menu.addAction(tr("Save picture..."));
if(menu.exec(e->globalPos()) == saveImage)
{
QString text;
#ifdef QT_SVG_LIB
text = QFileDialog::getSaveFileName(this, tr("Save figure to ..."), _savedFileName, "*.png *.xpm *.jpg *.pdf *.svg");
#else
text = QFileDialog::getSaveFileName(this, tr("Save figure to ..."), _savedFileName, "*.png *.xpm *.jpg *.pdf");
#endif
if(!text.isEmpty())
{
_savedFileName = text;
QImage img(this->sceneRect().width(), this->sceneRect().height(),QImage::Format_ARGB32_Premultiplied);
QPainter p(&img);
this->scene()->render(&p, this->sceneRect(), this->sceneRect());
img.save(text);
}
}
}
void ImageView::updateZoom()
{
qreal scaleRatio = 1;
if(this->scene())
{
scaleRatio = this->geometry().width()/this->sceneRect().width();
}
_minZoom = log(scaleRatio)/log(2)*50+250;
}
void ImageView::wheelEvent(QWheelEvent * e)
{
if(e->delta() > 0)
{
_zoom += 20;
this->setDragMode(QGraphicsView::ScrollHandDrag);
if(_zoom>=500)
{
_zoom = 500;
}
}
else
{
_zoom -= 20;
if(_zoom<=_minZoom)
{
this->setDragMode(QGraphicsView::NoDrag);
_zoom = _minZoom;
this->fitInView(this->sceneRect(), Qt::KeepAspectRatio);
return;
}
}
qreal scale = qPow(qreal(2), (_zoom - 250) / qreal(50));
QMatrix matrix;
matrix.scale(scale, scale);
this->setMatrix(matrix);
}
}