From fb1084c69db846e3eb0deb9f0cdd57c2b248cc4f Mon Sep 17 00:00:00 2001
From: Artem Pavlenko <artem@mapnik.org>
Date: Mon, 21 Feb 2005 11:57:16 +0000
Subject: [PATCH] added python subtree (requires bjam to build)

---
 python/Jamfile              |  18 +++++
 python/Jamrules             |   5 ++
 python/boost-build.jam      |   1 +
 python/mapnik_color.cc      |  50 ++++++++++++
 python/mapnik_envelope.cc   |  50 ++++++++++++
 python/mapnik_layer.cc      |  99 +++++++++++++++++++++++
 python/mapnik_map.cc        |  92 ++++++++++++++++++++++
 python/mapnik_parameters.cc |  94 ++++++++++++++++++++++
 python/mapnik_python.cc     | 153 ++++++++++++++++++++++++++++++++++++
 9 files changed, 562 insertions(+)
 create mode 100644 python/Jamfile
 create mode 100644 python/Jamrules
 create mode 100644 python/boost-build.jam
 create mode 100644 python/mapnik_color.cc
 create mode 100644 python/mapnik_envelope.cc
 create mode 100644 python/mapnik_layer.cc
 create mode 100644 python/mapnik_map.cc
 create mode 100644 python/mapnik_parameters.cc
 create mode 100644 python/mapnik_python.cc

diff --git a/python/Jamfile b/python/Jamfile
new file mode 100644
index 000000000..37691a094
--- /dev/null
+++ b/python/Jamfile
@@ -0,0 +1,18 @@
+project-root ;
+import python ;
+
+extension mapnik
+: # source
+  mapnik_parameters.cc
+  mapnik_color.cc
+  mapnik_layer.cc 
+  mapnik_envelope.cc
+  mapnik_map.cc
+  mapnik_python.cc 
+  # requirements and dependencies for Boost.Python extensions
+  <template>@boost/libs/python/build/extension
+:  # path to mapnik include dir e.g. 
+  <include>$(MAPNIK_ROOT)/include
+   # path to libmapnik.so e.g.
+  <library-file>$(MAPNIK_ROOT)/lib/libmapnik.so
+;
diff --git a/python/Jamrules b/python/Jamrules
new file mode 100644
index 000000000..e39e6b9cc
--- /dev/null
+++ b/python/Jamrules
@@ -0,0 +1,5 @@
+path-global BOOST_ROOT : /opt/boost ;
+PYTHON_VERSION = 2.4 ;
+PYTHON_ROOT = /opt/python ;
+project boost : $(BOOST_ROOT) ;
+path-global MAPNIK_ROOT : /opt/mapnik ;
diff --git a/python/boost-build.jam b/python/boost-build.jam
new file mode 100644
index 000000000..6e984793b
--- /dev/null
+++ b/python/boost-build.jam
@@ -0,0 +1 @@
+boost-build /opt/boost/tools/build/v1 ;
diff --git a/python/mapnik_color.cc b/python/mapnik_color.cc
new file mode 100644
index 000000000..d1c80e4fa
--- /dev/null
+++ b/python/mapnik_color.cc
@@ -0,0 +1,50 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 Artem Pavlenko
+ *
+ * Mapnik is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+//$Id$
+
+
+#include <mapnik.hh>
+#include <boost/python.hpp>
+
+using mapnik::Color;
+
+struct color_pickle_suite : boost::python::pickle_suite
+{
+    static boost::python::tuple
+        getinitargs(const Color& c)
+    {
+        using namespace boost::python;
+        return make_tuple(c.red(),c.green(),c.blue());
+    }
+};
+
+void export_color () 
+{
+    using namespace boost::python;
+    class_<Color>("color",init<>())
+        .def(init<int,int,int>())
+        .def("red",&Color::red)
+        .def("green",&Color::green)
+        .def("blue",&Color::blue)
+        .def_pickle(color_pickle_suite())
+        ;
+}
+
+
+
diff --git a/python/mapnik_envelope.cc b/python/mapnik_envelope.cc
new file mode 100644
index 000000000..d4753450b
--- /dev/null
+++ b/python/mapnik_envelope.cc
@@ -0,0 +1,50 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 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.
+ */
+
+//$Id$
+
+#include <mapnik.hh>
+#include <boost/python.hpp>
+
+using mapnik::coord;
+using mapnik::Envelope;
+
+struct envelope_pickle_suite : boost::python::pickle_suite
+{
+    static boost::python::tuple
+    getinitargs(const Envelope<double>& e)
+    {
+        using namespace boost::python;
+        return make_tuple(e.minx(),e.miny(),e.maxx(),e.maxy());
+    }
+};
+
+void export_envelope()
+{
+    using namespace boost::python;
+     class_<Envelope<double> >("envelope",init<double,double,double,double>())
+        .def(init<>())
+	 .def(init<const coord<double,2>&, const coord<double,2>&>())
+        .add_property("minx",&Envelope<double>::minx)
+        .add_property("miny",&Envelope<double>::miny)
+        .add_property("maxx",&Envelope<double>::maxx)
+        .add_property("maxy",&Envelope<double>::maxy)
+        .def("center",&Envelope<double>::center)
+        .def_pickle(envelope_pickle_suite())
+        ;
+}
diff --git a/python/mapnik_layer.cc b/python/mapnik_layer.cc
new file mode 100644
index 000000000..0ac701968
--- /dev/null
+++ b/python/mapnik_layer.cc
@@ -0,0 +1,99 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 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.
+ */
+
+//$Id$
+
+
+#include <mapnik.hh>
+#include <boost/python.hpp>
+#include <boost/python/detail/api_placeholder.hpp>
+
+using mapnik::Layer;
+using mapnik::Parameters;
+
+struct layer_pickle_suite : boost::python::pickle_suite
+{
+    
+    static boost::python::tuple
+    getinitargs(const Layer& l)
+    {    
+	using namespace boost::python;
+        return make_tuple(l.params());
+    }
+    static boost::python::tuple
+    getstate(const Layer& l)
+    {
+	using namespace boost::python;
+	return make_tuple(l.getMinZoom(),
+			  l.getMaxZoom(),
+			  l.getStyle());
+    }
+
+    static void
+    setstate (Layer& l, boost::python::tuple state)
+    {
+	using namespace boost::python;
+	if (len(state) != 3)
+	{
+	    PyErr_SetObject(PyExc_ValueError,
+			    ("expected 3-item tuple in call to __setstate__; got %s"
+			     % state).ptr()
+			    );
+	    throw_error_already_set();
+	}
+
+	l.setMinZoom(extract<double>(state[0]));
+	l.setMaxZoom(extract<double>(state[1]));
+	l.setStyle(extract<std::string>(state[2]));
+    }
+};
+
+namespace  
+{
+    //user-friendly wrapper that uses Python dictionary
+    using namespace boost::python;
+    Layer create_layer(const dict& d)
+    {
+	Parameters params;
+	list keys=d.keys();
+	for (int i=0;i<len(keys);++i)
+	{
+	    std::string key=extract<std::string>(keys[i]);
+            std::string value=extract<std::string>(d[key]);
+	    std::cout<<key<<":"<<value<<std::endl;
+	    params.add(key,value);
+	}
+	return Layer(params);
+    }
+}
+
+void export_layer()
+{
+    using namespace boost::python;
+    class_<Layer>("layer",init<const Parameters&>("Layer constructor"))
+	//class_<Layer>("layer",no_init)
+        .def("name",&Layer::name,return_value_policy<copy_const_reference>())
+        .def("params",&Layer::params,return_value_policy<reference_existing_object>())
+        .def("envelope",&Layer::envelope,return_value_policy<reference_existing_object>())
+	.def("minzoom",&Layer::setMinZoom)
+	.def("maxzoom",&Layer::setMaxZoom)
+	.def("style",&Layer::setStyle)
+        .def_pickle(layer_pickle_suite())
+        ;
+    def("create_layer",&create_layer);
+}
diff --git a/python/mapnik_map.cc b/python/mapnik_map.cc
new file mode 100644
index 000000000..eb7ec1902
--- /dev/null
+++ b/python/mapnik_map.cc
@@ -0,0 +1,92 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 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.
+ */
+
+//$Id$
+
+#include <mapnik.hh>
+#include <boost/python.hpp>
+#include <boost/python/detail/api_placeholder.hpp>
+
+using mapnik::Color;
+using mapnik::coord;
+using mapnik::Envelope;
+using mapnik::Layer;
+using mapnik::Map;
+
+struct map_pickle_suite : boost::python::pickle_suite
+{
+    static boost::python::tuple
+    getinitargs(const Map& m)
+    {
+        using namespace boost::python;
+        return make_tuple(m.getWidth(),m.getHeight(),m.srid());
+    }
+
+    static  boost::python::tuple
+    getstate(const Map& m)
+    {
+        using namespace boost::python;
+        list l;
+        for (unsigned i=0;i<m.layerCount();++i)
+        {
+            l.append(m.getLayer(i));
+        }
+        return make_tuple(m.getCurrentExtent(),m.getBackground(),l);
+    }
+
+    static void
+    setstate (Map& m, boost::python::tuple state)
+    {
+        using namespace boost::python;
+        if (len(state) != 3)
+        {
+            PyErr_SetObject(PyExc_ValueError,
+			    ("expected 3-item tuple in call to __setstate__; got %s"
+			     % state).ptr()
+			    );
+            throw_error_already_set();
+        }
+        Envelope<double> ext = extract<Envelope<double> >(state[0]);
+        Color bg = extract<Color>(state[1]);
+        m.zoomToBox(ext);
+        m.setBackground(bg);
+        list l=extract<list>(state[2]);
+        for (int i=0;i<len(l);++i)
+        {
+            m.addLayer(extract<Layer>(l[i]));
+        }
+    }
+};
+
+void export_map() 
+{
+    using namespace boost::python;
+    class_<Map>("map",init<int,int,optional<int> >())
+        .add_property("width",&Map::getWidth)
+        .add_property("height",&Map::getHeight)
+        .def("background",&Map::setBackground)
+        .def("scale", &Map::scale)
+        .def("add",&Map::addLayer)
+        .def("zoom_to_box",&Map::zoomToBox)
+        .def("pan",&Map::pan)
+        .def("zoom",&Map::zoom)
+        .def("pan_and_zoom",&Map::pan_and_zoom)
+        .def_pickle(map_pickle_suite())
+        ;
+    
+}
diff --git a/python/mapnik_parameters.cc b/python/mapnik_parameters.cc
new file mode 100644
index 000000000..a54bd3165
--- /dev/null
+++ b/python/mapnik_parameters.cc
@@ -0,0 +1,94 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 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.
+ */
+
+//$Id$
+
+#include <mapnik.hh>
+#include <boost/python.hpp>
+#include <boost/python/detail/api_placeholder.hpp>
+
+using mapnik::Parameter;
+using mapnik::Parameters;
+
+
+void (Parameters::*add1)(const Parameter& param)=&Parameters::add;
+void (Parameters::*add2)(const std::string&,const std::string&)=&Parameters::add;
+
+struct parameter_pickle_suite : boost::python::pickle_suite
+{
+    static boost::python::tuple
+    getinitargs(const Parameter& p)
+    {
+        using namespace boost::python;
+        return make_tuple(p.first,p.second);
+    }
+};
+
+struct parameters_pickle_suite : boost::python::pickle_suite
+{
+    static boost::python::tuple
+    getstate(const Parameters& p)
+    {
+        using namespace boost::python;
+        dict d;
+        Parameters::const_iterator pos=p.begin();
+        while(pos!=p.end())
+        {
+            d[pos->first]=pos->second;
+            ++pos;
+        }
+        return make_tuple(d);
+    }
+
+    static void setstate(Parameters& p, boost::python::tuple state)
+    {
+        using namespace boost::python;
+        if (len(state) != 1)
+        {
+            PyErr_SetObject(PyExc_ValueError,
+			    ("expected 1-item tuple in call to __setstate__; got %s"
+			     % state).ptr()
+			    );
+            throw_error_already_set();
+        }
+        dict d = extract<dict>(state[0]);
+        list keys=d.keys();
+        for (int i=0;i<len(keys);++i)
+        {
+            std::string key=extract<std::string>(keys[i]);
+            std::string value=extract<std::string>(d[key]);
+            p.add(key,value);
+        }
+    }
+};
+
+
+void export_parameters()
+{
+    using namespace boost::python;
+    class_<Parameter>("parameter",init<std::string,std::string>())
+        .def_pickle(parameter_pickle_suite())
+        ;
+
+    class_<Parameters>("parameters",init<>())
+        .def("add",add1)
+        .def("add",add2)
+        .def("get",&Parameters::get)
+        .def_pickle(parameters_pickle_suite())
+        ;
+}
diff --git a/python/mapnik_python.cc b/python/mapnik_python.cc
new file mode 100644
index 000000000..77842f937
--- /dev/null
+++ b/python/mapnik_python.cc
@@ -0,0 +1,153 @@
+/* This file is part of python_mapnik (c++/python mapping toolkit)
+ * Copyright (C) 2005 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.
+ */
+
+//$Id$
+
+#include <boost/get_pointer.hpp>
+#include <boost/python.hpp>
+#include <boost/python/detail/api_placeholder.hpp>
+
+#include "mapnik.hh"
+#include "polygon_symbolizer.hh"
+#include "line_symbolizer.hh"
+#include "image_symbolizer.hh"
+
+
+void export_color();
+void export_layer();
+void export_parameters();
+void export_envelope();
+void export_map();
+
+using namespace mapnik;
+
+namespace boost
+{
+    namespace python
+    {
+	
+	template <typename T,
+		  template <typename T> class DeallocPolicy>
+	T* get_pointer(ref_ptr< T , DeallocPolicy> const& ptr)
+	{
+	    return ( T* )ptr.get();
+	}
+
+        template <typename T>	    
+	struct pointee<ref_ptr<T> > 
+	{
+	    typedef T type;
+	};
+	
+	template <> struct pointee<ref_ptr<datasource,datasource_delete> >
+	{
+	    typedef datasource type;
+	};
+    }
+}
+
+void render_to_file(const Map& map,const std::string& file,const std::string& format)
+{
+    Image32 image(map.getWidth(),map.getHeight());
+    Renderer<Image32>::render(map,image);
+    image.saveToFile(file,format);
+}
+
+//BEGIN quick hack 
+ref_ptr<Symbolizer> create_point_symbolizer(const std::string& file,unsigned w,unsigned h)
+{
+    return ref_ptr<Symbolizer>(new ImageSymbolizer(file,"png",w,h));
+}
+
+ref_ptr<Symbolizer> create_line_symbolizer(const Color& stroke,double minScale,double maxScale)
+{
+    return ref_ptr<Symbolizer>(new LineSymbolizer(stroke,minScale,maxScale));
+} 
+
+ref_ptr<Symbolizer> create_polygon_symbolizer(const Color& stroke,const Color& fill,double minScale,double maxScale) 
+{   
+    return ref_ptr<Symbolizer>(new PolygonSymbolizer(fill,minScale,maxScale));
+} 
+
+//END
+
+
+BOOST_PYTHON_MODULE(mapnik)
+{
+    using namespace boost::python;
+
+    class_<datasource,ref_ptr<datasource,datasource_delete>,
+	boost::noncopyable>("datasource",no_init)
+        .def("envelope",&datasource::envelope,
+	     return_value_policy<reference_existing_object>())
+        ;
+
+    export_parameters();
+    export_color(); 
+    export_envelope();   
+
+    class_<Style>("style",init<>("Style default constructor"))
+	.def(init<ref_ptr<Symbolizer> >())
+	.def("add",&Style::add)
+	;
+
+    class_<Symbolizer,boost::noncopyable> ("symbolizer",no_init) 
+    	;
+ 
+    export_layer();
+
+    class_<singleton<datasource_cache,CreateStatic>,boost::noncopyable>("singleton",no_init)
+        .def("instance",&singleton<datasource_cache,CreateStatic>::instance,
+	     return_value_policy<reference_existing_object>())
+        .staticmethod("instance")
+        ;
+
+    class_<datasource_cache,bases<singleton<datasource_cache,CreateStatic> >,
+        boost::noncopyable>("datasource_cache",no_init)
+        .def("create",&datasource_cache::create)
+        .staticmethod("create")
+        ;
+
+    class_<singleton<style_cache,CreateStatic>,boost::noncopyable>("singleton",no_init)
+	.def("instance",&singleton<style_cache,CreateStatic>::instance,
+	     return_value_policy<reference_existing_object>())
+	.staticmethod("instance")
+	;
+
+    class_<style_cache,bases<singleton<style_cache,CreateStatic> >,
+	boost::noncopyable>("style_cache",no_init)
+	.def("insert",&style_cache::insert)
+	.staticmethod("insert")
+	.def("remove",&style_cache::remove)
+	.staticmethod("remove")
+	;
+
+    class_<coord<double,2> >("coord",init<double,double>())
+        .def_readwrite("x", &coord<double,2>::x)
+        .def_readwrite("y", &coord<double,2>::y)
+        ;
+
+    export_map();
+  
+    def("render_to_file",&render_to_file);
+
+    def("create_point_symbolizer",&create_point_symbolizer);
+    def("create_line_symbolizer",&create_line_symbolizer);
+    def("create_polygon_symbolizer",&create_polygon_symbolizer);
+    register_ptr_to_python<ref_ptr<Symbolizer> >();
+}