mapnik/demo/viewer/mapwidget.hpp
2012-07-10 16:58:43 +01:00

111 lines
2.8 KiB
C++

/* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 Artem Pavlenko
*
* Mapnik 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 2
* of the License, or any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//$Id$
#ifndef MAP_WIDGET_HPP
#define MAP_WIDGET_HPP
#include <QWidget>
#include <QImage>
#include <QPixmap>
#include <QPen>
#include <QItemSelection>
#include <iostream>
#include <string>
#include <boost/shared_ptr.hpp>
#include <boost/scoped_ptr.hpp>
#ifndef Q_MOC_RUN
#include <mapnik/map.hpp>
#endif
class MapWidget : public QWidget
{
Q_OBJECT
public:
enum eTool
{
ZoomToBox = 1,
Pan,
Info,
};
enum eRenderer
{
AGG,
Cairo,
Grid
};
private:
boost::shared_ptr<mapnik::Map> map_;
int selected_;
QPixmap pix_;
mapnik::box2d<double> extent_;
eTool cur_tool_;
int start_x_;
int start_y_;
int end_x_;
int end_y_;
bool drag_;
bool first_;
QPen pen_;
int selectedLayer_;
double scaling_factor_;
eRenderer cur_renderer_;
public:
MapWidget(QWidget *parent=0);
void setTool(eTool tool);
boost::shared_ptr<mapnik::Map> getMap();
inline QPixmap const& pixmap() const { return pix_;}
void setMap(boost::shared_ptr<mapnik::Map> map);
void defaultView();
void zoomToBox(mapnik::box2d<double> const& box);
void zoomIn();
void zoomOut();
void panLeft();
void panRight();
void panUp();
void panDown();
void set_scaling_factor(double);
public slots:
void zoomToLevel(int level);
void updateMap();
void layerSelected(int);
void updateRenderer(QString const& txt);
void updateScaleFactor(double scale_factor);
signals:
void mapViewChanged();
protected:
void paintEvent(QPaintEvent* ev);
void resizeEvent(QResizeEvent* ev);
void mousePressEvent(QMouseEvent* e);
void mouseMoveEvent(QMouseEvent* e);
void mouseReleaseEvent(QMouseEvent* e);
void wheelEvent(QWheelEvent* e);
void keyPressEvent(QKeyEvent *e);
void export_to_file(unsigned width,
unsigned height,
std::string const& filename,
std::string const& type);
};
#endif // MAP_WIDGET_HPP