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// K-3D
// Copyright (c) 1995-2007, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program 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 (at your option) 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
/** \file
\author Romain Behar (romainbehar@yahoo.com)
\author Timothy M. Shead (tshead@k-3d.com)
\author Bart Janssens (bart.janssens@lid.kviv.be)
*/
#include "utility.h"
#include <k3d-i18n-config.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/mesh_painter_gl.h>
#include <k3dsdk/named_arrays.h>
#include <k3dsdk/options.h>
#include <k3dsdk/painter_render_state_gl.h>
#include <k3dsdk/polyhedron.h>
#include <k3dsdk/selection.h>
#include <k3dsdk/share.h>
#include <FTGL/ftgl.h>
#include <boost/scoped_ptr.hpp>
namespace module
{
namespace opengl
{
namespace painters
{
namespace detail
{
typedef std::vector<k3d::string_t> strings_t;
/// Converts the named array with the given name to an array of strings
template<typename ArrayT>
void named_array_to_strings(const k3d::mesh::table_t& Arrays, const k3d::string_t& ArrayName, strings_t& StringArray)
{
const ArrayT* array = Arrays.lookup<ArrayT>(ArrayName);
if (!array)
return;
const k3d::uint_t array_size = array->size();
StringArray.resize(array_size);
for(k3d::uint_t i = 0; i != array_size; ++i)
{
StringArray[i] = k3d::string_cast(array->at(i));
}
}
}
/////////////////////////////////////////////////////////////////////////////
// varying_data_painter
class varying_data_painter :
public k3d::gl::mesh_painter
{
typedef k3d::gl::mesh_painter base;
public:
varying_data_painter(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_font_path(init_owner(*this) + init_name("font") + init_label(_("Font")) + init_description(_("Font path")) + init_value(k3d::share_path() / k3d::filesystem::generic_path("fonts/VeraBd.ttf")) + init_path_mode(k3d::ipath_property::READ) + init_path_type(k3d::options::path::fonts())),
m_font_size(init_owner(*this) + init_name("font_size") + init_label(_("Font Size")) + init_description(_("Font size.")) + init_value(14.0)),
m_antialias(init_owner(*this) + init_name("antialias") + init_label(_("Font Antialiasing")) + init_description(_("Render antialiased text.")) + init_value(true)),
m_color(init_owner(*this) + init_name("color") + init_label(_("Color")) + init_description(_("Color of the text")) + init_value(k3d::color(0, 1, 0))),
m_edge_offset(init_owner(*this) + init_name("edge_offset") + init_label(_("Edge Offset")) + init_description(_("Offsets numbers away from their edges.")) + init_value(0.5)),
m_face_offset(init_owner(*this) + init_name("face_offset") + init_label(_("Face Offset")) + init_description(_("Offsets numbers away from their polygons.")) + init_value(0.2)),
m_array_name(init_owner(*this) + init_name("array_name") + init_label(_("Array Name")) + init_description(_("Specifies the array to draw")) + init_value(std::string("Cs")))
{
m_font_path.changed_signal().connect(sigc::mem_fun(*this, &varying_data_painter::on_font_changed));
m_font_size.changed_signal().connect(sigc::mem_fun(*this, &varying_data_painter::on_font_changed));
m_antialias.changed_signal().connect(sigc::mem_fun(*this, &varying_data_painter::on_font_changed));
m_color.changed_signal().connect(make_async_redraw_slot());
m_edge_offset.changed_signal().connect(make_async_redraw_slot());
m_face_offset.changed_signal().connect(make_async_redraw_slot());
m_array_name.changed_signal().connect(make_async_redraw_slot());
}
void on_font_changed(k3d::ihint*)
{
m_font.reset();
async_redraw(0);
}
void draw(const k3d::mesh::indices_t& FaceFirstLoops, const k3d::mesh::counts_t& FaceLoopCounts, const k3d::mesh::indices_t& LoopFirstEdges, const k3d::mesh::indices_t& EdgePoints, const k3d::mesh::indices_t& ClockwiseEdges, const k3d::mesh::points_t& Points, const k3d::mesh::normals_t& FaceNormals, const k3d::color& Color, const k3d::double_t EdgeOffset, const k3d::double_t FaceOffset, FTFont& Font, const detail::strings_t StringArray)
{
k3d::gl::color3d(Color);
const size_t face_begin = 0;
const size_t face_end = face_begin + FaceFirstLoops.size();
for(size_t face = face_begin; face != face_end; ++face)
{
const size_t loop_begin = FaceFirstLoops[face];
const size_t loop_end = loop_begin + FaceLoopCounts[face];
for(size_t loop = loop_begin; loop != loop_end; ++loop)
{
const size_t first_edge = LoopFirstEdges[loop];
for(size_t edge = first_edge; ; )
{
const k3d::point3 vertex1 = Points[EdgePoints[edge]];
const k3d::point3 vertex2 = Points[EdgePoints[ClockwiseEdges[edge]]];
const k3d::vector3 edge_vector = vertex2 - vertex1;
const k3d::point3 position = vertex1 + (0.5 * edge_vector) + (EdgeOffset * k3d::normalize(FaceNormals[face] ^ edge_vector)) + (FaceOffset * k3d::to_vector(k3d::normalize(FaceNormals[face])));
glRasterPos3d(position[0], position[1], position[2]);
if(edge < StringArray.size())
Font.Render(StringArray[edge].c_str());
edge = ClockwiseEdges[edge];
if(edge == first_edge)
break;
}
}
}
}
void on_paint_mesh(const k3d::mesh& Mesh, const k3d::gl::painter_render_state& RenderState, k3d::iproperty::changed_signal_t& ChangedSignal)
{
if(!has_non_empty_polyhedra(Mesh))
return;
if(!m_font)
{
if(m_antialias.pipeline_value())
m_font.reset(new FTPixmapFont(m_font_path.pipeline_value().native_filesystem_string().c_str()));
else
m_font.reset(new FTBitmapFont(m_font_path.pipeline_value().native_filesystem_string().c_str()));
m_font->FaceSize(static_cast<unsigned int>(m_font_size.pipeline_value()));
m_font->UseDisplayList(true);
if(m_font->Error())
{
k3d::log() << error << "error initializing font" << std::endl;
return;
}
}
const k3d::double_t edge_offset = m_edge_offset.pipeline_value();
const k3d::double_t face_offset = m_face_offset.pipeline_value();
for(k3d::mesh::primitives_t::const_iterator primitive = Mesh.primitives.begin(); primitive != Mesh.primitives.end(); ++primitive)
{
boost::scoped_ptr<k3d::polyhedron::const_primitive> polyhedron(k3d::polyhedron::validate(Mesh, **primitive));
if(!polyhedron.get())
continue;
const k3d::mesh::indices_t& face_first_loops = polyhedron->face_first_loops;
const k3d::mesh::counts_t& face_loop_counts = polyhedron->face_loop_counts;
const k3d::mesh::indices_t& loop_first_edges = polyhedron->loop_first_edges;
const k3d::mesh::indices_t& clockwise_edges = polyhedron->clockwise_edges;
const k3d::mesh::indices_t& vertex_points = polyhedron->vertex_points;
const k3d::mesh::points_t& points = *Mesh.points;
const size_t face_count = face_first_loops.size();
// Calculate face normals ...
k3d::typed_array<k3d::normal3> normals(face_count);
for(size_t face = 0; face != face_count; ++face)
normals[face] = k3d::polyhedron::normal(vertex_points, clockwise_edges, points, loop_first_edges[face_first_loops[face]]);
k3d::gl::store_attributes attributes;
glDisable(GL_LIGHTING);
// Try some different types for the array to print
const k3d::string_t array_name = m_array_name.pipeline_value();
detail::strings_t string_array;
detail::named_array_to_strings<k3d::mesh::colors_t>(polyhedron->edge_attributes, array_name, string_array);
detail::named_array_to_strings<k3d::mesh::normals_t>(polyhedron->edge_attributes, array_name, string_array);
detail::named_array_to_strings<k3d::mesh::indices_t>(polyhedron->edge_attributes, array_name, string_array);
detail::named_array_to_strings<k3d::mesh::weights_t>(polyhedron->edge_attributes, array_name, string_array);
draw(face_first_loops, face_loop_counts, loop_first_edges, vertex_points, clockwise_edges, points, normals, m_color.pipeline_value(), edge_offset, face_offset, *m_font, string_array);
}
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<varying_data_painter, k3d::interface_list<k3d::gl::imesh_painter > > factory(
k3d::uuid(0x4a155ddc, 0x55436122, 0xaf1892bb, 0xfc5e8241),
"OpenGLVaryingDataPainter",
_("Prints associated varying data near each edge, for debugging purposes"),
"OpenGL Painter",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_data(k3d::filesystem::path, immutable_name, change_signal, with_undo, local_storage, no_constraint, path_property, path_serialization) m_font_path;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_font_size;
k3d_data(k3d::bool_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_antialias;
k3d_data(k3d::color, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_color;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_edge_offset;
k3d_data(k3d::double_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_face_offset;
k3d_data(k3d::string_t, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_array_name;
boost::scoped_ptr<FTFont> m_font;
};
/////////////////////////////////////////////////////////////////////////////
// varying_data_painter_factory
k3d::iplugin_factory& varying_data_painter_factory()
{
return varying_data_painter::get_factory();
}
} // namespace painters
} // namespace opengl
} // namespace module
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