+ export as mapnik SVG

demo/viewer/mainwindow.cpp

@@ -267,7 +267,7 @@ void MainWindow::export_as()
 void MainWindow::export_as_skia_pdf()
 {
     QAction *action = qobject_cast<QAction *>(sender());
-    QByteArray fileFormat("pdf");
+    QByteArray fileFormat = action->data().toByteArray();
     QString initialPath = QDir::currentPath() + "/map-skia." + fileFormat;
 
     QString fileName = QFileDialog::getSaveFileName(this, tr("Export As Skia PDF"),
@@ -287,9 +287,8 @@ void MainWindow::export_as_skia_pdf()
 #ifdef HAVE_CAIRO
 void MainWindow::export_as_cairo_pdf()
 {
-
     QAction *action = qobject_cast<QAction *>(sender());
-    QByteArray fileFormat("pdf");
+    QByteArray fileFormat = action->data().toByteArray();
     QString initialPath = QDir::currentPath() + "/map-cairo." + fileFormat;
 
     QString fileName = QFileDialog::getSaveFileName(this, tr("Export As Cairo PDF"),
@@ -306,6 +305,29 @@ void MainWindow::export_as_cairo_pdf()
 }
 #endif
 
+#ifdef SVG_RENDERER
+
+void MainWindow::export_as_mapnik_svg()
+{
+    QAction *action = qobject_cast<QAction *>(sender());
+    QByteArray fileFormat = action->data().toByteArray();
+    QString initialPath = QDir::currentPath() + "/map-mapnik." + fileFormat;
+
+    QString fileName = QFileDialog::getSaveFileName(this, tr("Export As Mapnik SVG"),
+                                                    initialPath,
+                                                    tr("%1 Files (*.%2);;All Files (*)")
+                                                    .arg(QString(fileFormat.toUpper()))
+                                                    .arg(QString(fileFormat)));
+    if (!fileName.isEmpty())
+    {
+        std::cerr << "Mapnik SVG" << std::endl;
+        mapWidget_->export_mapnik_svg(fileName);
+    }
+
+}
+
+#endif
+
 void MainWindow::print()
 {
 
@@ -378,13 +400,21 @@ void MainWindow::createActions()
         exportAsActs.append(action);
     }
 #ifdef SKIA_RENDERER
-    exportSkiaPdf = new QAction("Skia",this);
-    connect(exportSkiaPdf, SIGNAL(triggered()), this, SLOT(export_as_skia_pdf()));
+    exportSkiaPDF = new QAction("Skia",this);
+    exportSkiaPDF->setData(QByteArray("pdf"));
+    connect(exportSkiaPDF, SIGNAL(triggered()), this, SLOT(export_as_skia_pdf()));
 #endif
 
 #ifdef HAVE_CAIRO
-    exportCairoPdf = new QAction("Cairo",this);
-    connect(exportCairoPdf, SIGNAL(triggered()), this, SLOT(export_as_cairo_pdf()));
+    exportCairoPDF = new QAction("Cairo",this);
+    exportCairoPDF->setData(QByteArray("pdf"));
+    connect(exportCairoPDF, SIGNAL(triggered()), this, SLOT(export_as_cairo_pdf()));
+#endif
+
+#ifdef SVG_RENDERER
+    exportMapnikSVG = new QAction("Mapnik",this);
+    exportMapnikSVG->setData(QByteArray("svg"));
+    connect(exportMapnikSVG, SIGNAL(triggered()), this, SLOT(export_as_mapnik_svg()));
 #endif
 
     printAct = new QAction(QIcon(":/images/print.png"),tr("&Print ..."),this);
@@ -405,15 +435,19 @@ void MainWindow::createMenus()
     foreach (QAction *action, exportAsActs)
         exportMenu->addAction(action);
 
-    exportPdfMenu = new QMenu(tr("&Export As PDF"), this);
-    exportPdfMenu->addAction(exportSkiaPdf);
-    exportPdfMenu->addAction(exportCairoPdf);
+    exportPDFMenu = new QMenu(tr("&Export As PDF"), this);
+    exportPDFMenu->addAction(exportSkiaPDF);
+    exportPDFMenu->addAction(exportCairoPDF);
+
+    exportSVGMenu = new QMenu(tr("&Export As SVG"), this);
+    exportSVGMenu->addAction(exportMapnikSVG);
 
     fileMenu = new QMenu(tr("&File"),this);
     fileMenu->addAction(openAct);
     fileMenu->addAction(saveAct);
     fileMenu->addMenu(exportMenu);
-    fileMenu->addMenu(exportPdfMenu);
+    fileMenu->addMenu(exportPDFMenu);
+    fileMenu->addMenu(exportSVGMenu);
     fileMenu->addAction(printAct);
     fileMenu->addSeparator();
     fileMenu->addAction(exitAct);

demo/viewer/mainwindow.hpp

@@ -56,6 +56,7 @@ public slots:
     void export_as();
     void export_as_skia_pdf();
     void export_as_cairo_pdf();
+    void export_as_mapnik_svg();
     void open(QString const&  path = QString());
     void reload();
     void save();
@@ -98,14 +99,16 @@ private:
     QAction *panDownAct;
     QAction *reloadAct;
     QAction *layerInfo;
-    QAction *exportSkiaPdf;
-    QAction *exportCairoPdf;
+    QAction *exportSkiaPDF;
+    QAction *exportCairoPDF;
+    QAction *exportMapnikSVG;
     //toolbars
     QToolBar *fileToolBar;
     QToolBar *editToolBar;
     //menus
     QMenu *exportMenu;
-    QMenu *exportPdfMenu;
+    QMenu *exportPDFMenu;
+    QMenu *exportSVGMenu;
     QMenu *fileMenu;
     QMenu *helpMenu;
     //status bar

demo/viewer/mapwidget.cpp

@@ -35,6 +35,10 @@
 #include <mapnik/config_error.hpp>
 #include <mapnik/image_util.hpp>
 
+#ifdef SVG_RENDERER
+#include <mapnik/svg/output/svg_renderer.hpp>
+#endif
+
 #ifdef HAVE_CAIRO
 // cairo
 #include <mapnik/cairo_renderer.hpp>
@@ -664,8 +668,6 @@ void MapWidget::export_skia_pdf(QString const& filename)
 }
 #endif
 
-
-
 void render_grid(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
 {
     std::cerr << "Not supported" << std::endl;
@@ -675,6 +677,7 @@ void render_grid(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
 void MapWidget::export_cairo_pdf(QString const& filename)
 {
     save_to_cairo_file(*map_,filename.toStdString(),scaling_factor_);
+    std::cerr << "Done" << std::endl;
 }
 void render_cairo(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
 {
@@ -690,6 +693,30 @@ void render_cairo(mapnik::Map const& map, double scaling_factor, QPixmap & pix)
 }
 #endif
 
+
+#ifdef SVG_RENDERER
+void MapWidget::export_mapnik_svg(QString const& filename)
+{
+    boost::timer::auto_cpu_timer t;
+    std::ofstream output_stream(filename.toStdString().c_str());
+    if (output_stream)
+    {
+        std::ostream_iterator<char> output_itr(output_stream);
+        mapnik::svg_renderer<std::ostream_iterator<char> > ren(*map_, output_itr, scaling_factor_);
+        try
+        {
+            ren.apply();
+        }
+        catch (...)
+        {
+            std::cerr << "Exception caught." << std::endl;
+        }
+        output_stream.close();
+    }
+    std::cerr << "Done" << std::endl;
+}
+#endif
+
 void MapWidget::updateRenderer(QString const& txt)
 {
     bool auto_swap = true;

demo/viewer/mapwidget.hpp

@@ -98,6 +98,10 @@ public:
     void export_cairo_pdf(QString const& filename);
 #endif
 
+#ifdef SVG_RENDERER
+    void export_mapnik_svg(QString const& filename);
+#endif
+
 public slots:
     void zoomToLevel(int level);
     void updateMap();