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// K-3D
// Copyright (c) 1995-2004, 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 Timothy M. Shead (tshead@k-3d.com)
\author Romain Behar (romainbehar@yahoo.com)
*/
#include <k3dsdk/classes.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/object.h>
#include <k3dsdk/persistence.h>
#include <k3dsdk/mesh.h>
#include <k3dsdk/mesh_filter.h>
#include <k3dsdk/module.h>
#include <k3dsdk/plugins.h>
namespace libk3dmesh
{
namespace detail
{
/// Handles negative numbers the way I'd expect it to
long mymod(const long a, const long b)
{
long result = a;
while(result < 0)
result += b;
while(result >= b)
result -= b;
return result;
}
} // namespace detail
/////////////////////////////////////////////////////////////////////////////
// move_first_edge_implementation
class move_first_edge_implementation :
public k3d::mesh_filter<k3d::persistent<k3d::object> >
{
typedef k3d::mesh_filter<k3d::persistent<k3d::object> > base;
public:
move_first_edge_implementation(k3d::idocument& Document) :
base(Document),
m_distance(k3d::init_name("distance") + k3d::init_description("Face distance [number]") + k3d::init_value(0UL) + k3d::init_precision(0) + k3d::init_step_increment(1) + k3d::init_units(typeid(k3d::measurement::scalar)) + k3d::init_document(Document))
{
register_property(m_distance);
m_input_mesh.changed_signal().connect(SigC::slot(*this, &move_first_edge_implementation::on_reset_geometry));
m_distance.changed_signal().connect(SigC::slot(*this, &move_first_edge_implementation::on_reset_geometry));
m_output_mesh.need_data_signal().connect(SigC::slot(*this, &move_first_edge_implementation::on_create_geometry));
}
void on_reset_geometry()
{
m_output_mesh.reset();
}
k3d::mesh* on_create_geometry()
{
// Get the input geometry ...
k3d::mesh* const input = m_input_mesh.property_value();
if(!input)
return 0;
// Create output geometry ...
k3d::mesh* const output = new k3d::mesh();
k3d::deep_copy(*input, *output);
const long distance = m_distance.property_value();
const bool ignore_selection = !k3d::contains_selection(*input);
for(k3d::mesh::polyhedra_t::const_iterator polyhedron = output->polyhedra.begin(); polyhedron != output->polyhedra.end(); ++polyhedron)
{
for(k3d::polyhedron::faces_t::iterator face = (*polyhedron)->faces.begin(); face != (*polyhedron)->faces.end(); ++face)
{
if(!ignore_selection && !(*face)->selected)
continue;
std::vector<k3d::split_edge*> edges;
for(k3d::split_edge* edge = (*face)->first_edge; edge; edge = edge->face_clockwise)
{
edges.push_back(edge);
if(edge->face_clockwise == (*face)->first_edge)
break;
}
(*face)->first_edge = edges[detail::mymod(distance, edges.size())];
}
}
return output;
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<
k3d::document_plugin<move_first_edge_implementation>,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0x81c766ed, 0x2cb943c7, 0x91e9e680, 0xeba9bc4b),
"MoveFirstEdge",
"Changes the first edge for selected polygons",
"Objects",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_measurement_property(long, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_distance;
};
/////////////////////////////////////////////////////////////////////////////
// move_first_edge_factory
k3d::iplugin_factory& move_first_edge_factory()
{
return move_first_edge_implementation::get_factory();
}
} // namespace libk3dmesh
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