337 lines
14 KiB
C++
337 lines
14 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id$
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#include <boost/python.hpp>
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#include <mapnik/text_symbolizer.hpp>
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#include "mapnik_enumeration.hpp"
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#include <mapnik/expression_string.hpp>
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using namespace mapnik;
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using mapnik::color;
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using mapnik::text_symbolizer;
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using mapnik::expr_node;
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using mapnik::expression_ptr;
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using mapnik::to_expression_string;
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namespace {
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using namespace boost::python;
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tuple get_text_displacement(const text_symbolizer& t)
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{
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position pos = t.get_displacement();
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return boost::python::make_tuple(boost::get<0>(pos),boost::get<1>(pos));
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}
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void set_text_displacement(text_symbolizer & t, boost::python::tuple arg)
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{
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t.set_displacement(extract<double>(arg[0]),extract<double>(arg[1]));
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}
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tuple get_anchor(const text_symbolizer& t)
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{
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position pos = t.get_anchor();
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return boost::python::make_tuple(boost::get<0>(pos),boost::get<1>(pos));
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}
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void set_anchor(text_symbolizer & t, boost::python::tuple arg)
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{
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t.set_anchor(extract<double>(arg[0]),extract<double>(arg[1]));
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}
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void set_placement_options(text_symbolizer & t, placement_type_e arg, std::string const& placements)
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{
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t.set_placement_options(arg, placements);
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}
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void set_placement_options_2(text_symbolizer & t, placement_type_e arg)
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{
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t.set_placement_options(arg, "");
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}
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}
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struct text_symbolizer_pickle_suite : boost::python::pickle_suite
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{
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static boost::python::tuple
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getinitargs(const text_symbolizer& t)
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{
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return boost::python::make_tuple("TODO",//t.get_name(),
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t.get_face_name(),t.get_text_size(),t.get_fill());
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}
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static boost::python::tuple
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getstate(const text_symbolizer& t)
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{
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boost::python::tuple disp = get_text_displacement(t);
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boost::python::tuple anchor = get_anchor(t);
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// so we do not exceed max args accepted by make_tuple,
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// lets put the increasing list of parameters in a list
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boost::python::list extras;
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extras.append(t.get_wrap_char_string());
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extras.append(t.get_line_spacing());
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extras.append(t.get_character_spacing());
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extras.append(t.get_text_transform());
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extras.append(t.get_wrap_before());
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extras.append(t.get_horizontal_alignment());
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extras.append(t.get_justify_alignment());
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extras.append(t.get_text_opacity());
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extras.append(t.get_minimum_padding());
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extras.append(t.get_minimum_path_length());
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return boost::python::make_tuple(disp,t.get_label_placement(),
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t.get_vertical_alignment(),t.get_halo_radius(),t.get_halo_fill(),t.get_text_ratio(),
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t.get_wrap_width(),t.get_label_spacing(),t.get_minimum_distance(),t.get_allow_overlap(),
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anchor,t.get_force_odd_labels(),t.get_max_char_angle_delta(),extras
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);
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}
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static void
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setstate (text_symbolizer& t, boost::python::tuple state)
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{
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using namespace boost::python;
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if (len(state) != 14)
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{
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PyErr_SetObject(PyExc_ValueError,
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("expected 15-item tuple in call to __setstate__; got %s"
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% state).ptr()
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);
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throw_error_already_set();
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}
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tuple disp = extract<tuple>(state[0]);
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double dx = extract<double>(disp[0]);
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double dy = extract<double>(disp[1]);
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t.set_displacement(dx,dy);
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t.set_label_placement(extract<label_placement_e>(state[1]));
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t.set_vertical_alignment(extract<vertical_alignment_e>(state[2]));
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t.set_halo_radius(extract<unsigned>(state[3]));
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t.set_halo_fill(extract<color>(state[4]));
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t.set_text_ratio(extract<unsigned>(state[5]));
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t.set_wrap_width(extract<unsigned>(state[6]));
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t.set_label_spacing(extract<unsigned>(state[7]));
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t.set_minimum_distance(extract<double>(state[8]));
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t.set_allow_overlap(extract<bool>(state[9]));
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tuple anch = extract<tuple>(state[10]);
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double x = extract<double>(anch[0]);
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double y = extract<double>(anch[1]);
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t.set_anchor(x,y);
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t.set_force_odd_labels(extract<bool>(state[11]));
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t.set_max_char_angle_delta(extract<double>(state[12]));
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list extras = extract<list>(state[13]);
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t.set_wrap_char_from_string(extract<std::string>(extras[0]));
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t.set_line_spacing(extract<unsigned>(extras[1]));
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t.set_character_spacing(extract<unsigned>(extras[2]));
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t.set_text_transform(extract<text_transform_e>(extras[3]));
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t.set_wrap_before(extract<bool>(extras[4]));
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t.set_horizontal_alignment(extract<horizontal_alignment_e>(extras[5]));
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t.set_justify_alignment(extract<justify_alignment_e>(extras[6]));
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t.set_text_opacity(extract<double>(extras[7]));
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t.set_minimum_padding(extract<double>(extras[8]));
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t.set_minimum_path_length(extract<double>(extras[9]));
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}
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};
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void export_text_symbolizer()
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{
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using namespace boost::python;
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enumeration_<label_placement_e>("label_placement")
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.value("LINE_PLACEMENT",LINE_PLACEMENT)
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.value("POINT_PLACEMENT",POINT_PLACEMENT)
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.value("VERTEX_PLACEMENT",VERTEX_PLACEMENT)
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.value("INTERIOR_PLACEMENT",INTERIOR_PLACEMENT)
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;
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enumeration_<vertical_alignment_e>("vertical_alignment")
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.value("TOP",V_TOP)
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.value("MIDDLE",V_MIDDLE)
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.value("BOTTOM",V_BOTTOM)
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.value("AUTO",V_AUTO)
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;
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enumeration_<horizontal_alignment_e>("horizontal_alignment")
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.value("LEFT",H_LEFT)
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.value("MIDDLE",H_MIDDLE)
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.value("RIGHT",H_RIGHT)
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;
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enumeration_<justify_alignment_e>("justify_alignment")
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.value("LEFT",J_LEFT)
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.value("MIDDLE",J_MIDDLE)
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.value("RIGHT",J_RIGHT)
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;
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enumeration_<text_transform_e>("text_transform")
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.value("NONE",NONE)
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.value("UPPERCASE",UPPERCASE)
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.value("LOWERCASE",LOWERCASE)
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.value("CAPITALIZE",CAPITALIZE)
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;
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enumeration_<placement_type_e>("placement_type")
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.value("SIMPLE",T_SIMPLE)
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.value("DUMMY",T_DUMMY)
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;
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class_<text_symbolizer>("TextSymbolizer",init<expression_ptr,std::string const&, unsigned,color const&>())
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/*
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// todo - all python classes can have kwargs and default constructors
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class_<text_symbolizer>("TextSymbolizer",
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init<expression_ptr,std::string const&, unsigned,color const&>(
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(
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arg("name"),
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arg("font_face")="DejaVu Sans Book",
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arg("size")=10,
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arg("color")=color("black")
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),
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"Create a TextSymbolizer\n"
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))
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*/
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//.def_pickle(text_symbolizer_pickle_suite())
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.add_property("anchor",
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&get_anchor,
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&set_anchor)
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.add_property("allow_overlap",
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&text_symbolizer::get_allow_overlap,
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&text_symbolizer::set_allow_overlap,
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"Set/get the allow_overlap property of the label")
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.add_property("displacement",
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&get_text_displacement,
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&set_text_displacement)
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.add_property("avoid_edges",
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&text_symbolizer::get_avoid_edges,
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&text_symbolizer::set_avoid_edges,
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"Set/get the avoid_edge property of the label")
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.add_property("character_spacing",
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&text_symbolizer::get_character_spacing,
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&text_symbolizer::set_character_spacing,
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"Set/get the character_spacing property of the label")
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.add_property("face_name",
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make_function(&text_symbolizer::get_face_name,return_value_policy<copy_const_reference>()),
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&text_symbolizer::set_face_name,
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"Set/get the face_name property of the label")
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.add_property("fill",
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make_function(&text_symbolizer::get_fill,return_value_policy<copy_const_reference>()),
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&text_symbolizer::set_fill)
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.add_property("fontset",
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make_function(&text_symbolizer::get_fontset,return_value_policy<copy_const_reference>()),
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&text_symbolizer::set_fontset)
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.add_property("force_odd_labels",
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&text_symbolizer::get_force_odd_labels,
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&text_symbolizer::set_force_odd_labels)
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.add_property("halo_fill",
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make_function(&text_symbolizer::get_halo_fill,return_value_policy<copy_const_reference>()),
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&text_symbolizer::set_halo_fill)
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.add_property("halo_radius",
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&text_symbolizer::get_halo_radius,
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&text_symbolizer::set_halo_radius)
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.add_property("horizontal_alignment",
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&text_symbolizer::get_horizontal_alignment,
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&text_symbolizer::set_horizontal_alignment,
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"Set/get the horizontal alignment of the label")
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.add_property("justify_alignment",
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&text_symbolizer::get_justify_alignment,
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&text_symbolizer::set_justify_alignment,
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"Set/get the text justification")
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.add_property("label_placement",
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&text_symbolizer::get_label_placement,
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&text_symbolizer::set_label_placement,
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"Set/get the placement of the label")
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.add_property("label_position_tolerance",
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&text_symbolizer::get_label_position_tolerance,
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&text_symbolizer::set_label_position_tolerance)
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.add_property("label_spacing",
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&text_symbolizer::get_label_spacing,
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&text_symbolizer::set_label_spacing)
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.add_property("line_spacing",
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&text_symbolizer::get_line_spacing,
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&text_symbolizer::set_line_spacing)
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.add_property("max_char_angle_delta",
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&text_symbolizer::get_max_char_angle_delta,
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&text_symbolizer::set_max_char_angle_delta)
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.add_property("minimum_distance",
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&text_symbolizer::get_minimum_distance,
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&text_symbolizer::set_minimum_distance)
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.add_property("minimum_padding",
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&text_symbolizer::get_minimum_padding,
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&text_symbolizer::set_minimum_padding)
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.add_property("minimum_path_length",
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&text_symbolizer::get_minimum_path_length,
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&text_symbolizer::set_minimum_path_length)
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.add_property("name",&text_symbolizer::get_name,
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&text_symbolizer::set_name)
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.add_property("opacity",
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&text_symbolizer::get_text_opacity,
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&text_symbolizer::set_text_opacity,
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"Set/get the text opacity")
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.add_property("placement",
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&text_symbolizer::get_label_placement,
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&text_symbolizer::set_label_placement,
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"Set/get the placement of the label")
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.add_property("text_transform",
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&text_symbolizer::get_text_transform,
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&text_symbolizer::set_text_transform,
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"Set/get the text conversion method")
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.add_property("text_ratio",
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&text_symbolizer::get_text_ratio,
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&text_symbolizer::set_text_ratio)
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.add_property("text_size",
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&text_symbolizer::get_text_size,
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&text_symbolizer::set_text_size)
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.add_property("vertical_alignment",
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&text_symbolizer::get_vertical_alignment,
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&text_symbolizer::set_vertical_alignment,
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"Set/get the vertical alignment of the label")
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.add_property("wrap_width",
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&text_symbolizer::get_wrap_width,
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&text_symbolizer::set_wrap_width)
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.add_property("wrap_character",
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&text_symbolizer::get_wrap_char_string,
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&text_symbolizer::set_wrap_char_from_string)
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.add_property("wrap_before",
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&text_symbolizer::get_wrap_before,
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&text_symbolizer::set_wrap_before)
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.add_property("placement_type", &text_symbolizer::get_placement_type)
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.add_property("placements", &text_symbolizer::get_placements)
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.def("set_placement_options", set_placement_options)
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.def("set_placement_options", set_placement_options_2)
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;
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}
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