File indexing completed on 2024-04-14 03:48:50

0001 // SPDX-License-Identifier: LGPL-2.1-or-later
0002 //
0003 // SPDX-FileCopyrightText: 2013 Dennis Nienhüser <nienhueser@kde.org>
0004 //
0005 
0006 #include <MarbleWidget.h>
0007 #include <MarbleModel.h>
0008 #include <GeoDataTreeModel.h>
0009 #include <RenderPlugin.h>
0010 
0011 #include <QDebug>
0012 #include <QApplication>
0013 #include <QPixmap>
0014 #include <QPainter>
0015 #include <QProcess>
0016 #include <QDir>
0017 #include <QThread>
0018 
0019 using namespace Marble;
0020 
0021 class Cheeeeze : private QThread { public: using QThread::msleep; };
0022 
0023 QPixmap resize(const QPixmap &pixmap)
0024 {
0025     if ( QProcess::execute("convert", QStringList() << "-version") == 0 ) {
0026         QString const inputFile = QDir::tempPath() + QLatin1String("/marble-preview.png");
0027         QString const outputFile = QDir::tempPath() + QLatin1String("/marble-preview-scaled.png");
0028         if ( pixmap.save( inputFile )
0029              && QProcess::execute( "convert", QStringList() << inputFile << "-resize" << "130x130"
0030                                    << "-sharpen" << "1x1" << outputFile ) == 0
0031              ) {
0032             QPixmap result( outputFile );
0033             if ( !result.isNull() ) {
0034                 return result;
0035             }
0036         }
0037     }
0038 
0039     qDebug() << "Warning: Unable to resize pixmap properly. Check imagemagick installation.";
0040     return pixmap.scaled( 130, 130, Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
0041 }
0042 
0043 int main(int argc, char** argv)
0044 {
0045     QApplication app(argc,argv);
0046 
0047     if ( argc < 2 ) {
0048         qDebug() << "Usage: " << argv[0] << " <maptheme> [output.png]";
0049         qDebug() << "Where <maptheme> is a map theme id a la 'body/maptheme/maptheme.dgml'.";
0050         return 1;
0051     }
0052 
0053     MarbleWidget *mapWidget = new MarbleWidget;
0054     mapWidget->setMapThemeId( argv[1] );
0055     QStringList const features = QStringList() << "atmosphere";
0056     for( RenderPlugin* plugin: mapWidget->renderPlugins() ) {
0057         if ( !features.contains( plugin->nameId() ) ) {
0058             plugin->setEnabled( false );
0059         }
0060     }
0061     double const scale = 4.0;
0062     mapWidget->resize( 130 * scale, 130 * scale );
0063     mapWidget->centerOn( 49.59526, 18.48104 );
0064     mapWidget->setRadius( 120 * scale / 2.0 );
0065 
0066     QPixmap canvas( ":/canvas.png" );
0067     Q_ASSERT(!canvas.isNull());
0068     QPainter globePainter( &canvas );
0069 
0070     // Hack: Wait up to ten seconds for six documents to be parsed.
0071     // We need proper load progress signalization in Marble
0072     for ( int i=0; i<400 && mapWidget->model()->treeModel()->rowCount() < 6; ++i ) {
0073         Cheeeeze::msleep( 25 );
0074         app.processEvents();
0075     }
0076     QPixmap const globe = QPixmap::grabWidget( mapWidget );
0077     globePainter.drawPixmap( QPoint( 2, 2 ), resize( globe ) );
0078     globePainter.end();
0079     canvas.save( argc > 2 ? argv[2] : "preview.png" );
0080 
0081     return 0;
0082 }