mapnik/demo/viewer/main.cpp

/* 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.
 */

//$Id$

// qt
#include <QApplication>
#include <QStringList>
#include <QSettings>
#include <mapnik/datasource_cache.hpp>
#include <mapnik/font_engine_freetype.hpp>
#include "mainwindow.hpp"
// boost
#include <boost/algorithm/string.hpp>
#include <boost/filesystem/operations.hpp>


int main( int argc, char **argv )
{
    using mapnik::datasource_cache;
    using mapnik::freetype_engine;
       
    QCoreApplication::setOrganizationName("Mapnik");
    QCoreApplication::setOrganizationDomain("mapnik.org");
    QCoreApplication::setApplicationName("Viewer");
    
    QSettings settings("viewer.ini",QSettings::IniFormat);
    
    // register input plug-ins
    QString plugins_dir = settings.value("mapnik/plugins_dir",
                                         QVariant("/usr/local/lib/mapnik2/input/")).toString();
    datasource_cache::instance()->register_datasources(plugins_dir.toStdString());
    // register fonts
    int count = settings.beginReadArray("mapnik/fonts");
    for (int index=0; index < count; ++index)
    {
        settings.setArrayIndex(index);
        QString font_dir = settings.value("dir").toString();
        freetype_engine::register_fonts(font_dir.toStdString());
    }
    settings.endArray();
    
    QApplication app( argc, argv ); 
    MainWindow window;
    window.show();
    if (argc > 1) window.open(argv[1]);
    if (argc >= 3)
    {
        QStringList list = QString(argv[2]).split(",");
        if (list.size()==4)
        {
            bool ok;
            double x0 = list[0].toDouble(&ok);
            double y0 = list[1].toDouble(&ok);
            double x1 = list[2].toDouble(&ok);
            double y1 = list[3].toDouble(&ok);
            if (ok) window.set_default_extent(x0,y0,x1,y1);
        }
    }
    else
    {
        window.zoom_all();
    }
    if (argc == 4)
    {
        bool ok;
        double scaling_factor = QString(argv[3]).toDouble(&ok);
        if (ok) window.set_scaling_factor(scaling_factor);
    }
    return app.exec(); 
}