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// K-3D
// Copyright (c) 2005, Romain Behar
//
// Contact: romainbehar@yahoo.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 "mesh_modifier.h"
#include <k3d-i18n-config.h>
#include <k3dsdk/algebra.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/node.h>
#include <k3dsdk/property.h>
namespace module
{
namespace deformation
{
/////////////////////////////////////////////////////////////////////////////
// tweak_points
class tweak_points :
public _k3d::mesh_modifier<k3d::node>
{
typedef _k3d::mesh_modifier<k3d::node> base;
typedef std::pair<k3d::mesh::indices_t, k3d::mesh::points_t> tweaks_t;
public:
tweak_points(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_tweaks(init_owner(*this) + init_name("tweaks") + init_label(_("Tweaks")) + init_description(_("A pair of indices_t and points_t arrays, indicating which positions to set")) + init_value(tweaks_t()))
{
m_tweaks.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::mesh_geometry_changed> >(make_update_mesh_slot()));
}
void on_execute(const std::vector<k3d::ihint*>& Hints, const k3d::mesh& Input, k3d::mesh& Output)
{
k3d::bool_t reset = Hints.empty();
for(k3d::uint_t i = 0; i != Hints.size(); ++i)
{
if(!dynamic_cast<k3d::hint::mesh_geometry_changed*>(Hints[i]) && !dynamic_cast<k3d::hint::selection_changed*>(Hints[i]))
reset = true;
}
if(reset)
{
Output = Input;
if(!m_tweaked_points || m_tweaked_points->size() != Output.points->size())
m_tweaked_points = Output.points;
}
k3d::mesh::points_t& output_points = m_tweaked_points.writable();
const tweaks_t tweaks = m_tweaks.pipeline_value();
const k3d::uint_t tweaks_begin = 0;
const k3d::uint_t tweaks_end = tweaks.first.size();
const k3d::uint_t point_count = output_points.size();
return_if_fail(tweaks_end == tweaks.second.size());
k3d::state_change_set* change_set = document().state_recorder().current_change_set();
if(change_set)
{
k3d::mesh::points_t old_positions;
for(k3d::uint_t i = tweaks_begin; i != tweaks_end; ++i)
{
const k3d::uint_t point_idx = tweaks.first[i];
if(point_idx < point_count)
old_positions.push_back(output_points[point_idx]);
}
// If undo/redo is being recorded, we need to store the old positions at the new tweak indices for the old state:
change_set->record_old_state(new tweaks_container(m_tweaks, tweaks.first, old_positions));
// The new state is simply the new tweak indices and the new positions:
change_set->record_new_state(new tweaks_container(m_tweaks, tweaks.first, tweaks.second));
}
for(k3d::uint_t i = tweaks_begin; i != tweaks_end; ++i)
{
const k3d::uint_t point_idx = tweaks.first[i];
if(point_idx < point_count)
output_points[point_idx] = tweaks.second[i];
}
Output.points = m_tweaked_points;
}
void save(k3d::xml::element& Element, const k3d::ipersistent::save_context& Context)
{
base::save(Element, Context);
k3d::xml::element& tweaks = Element.append(k3d::xml::element("tweaks"));
if(!m_input_mesh.pipeline_value())
return;
const k3d::mesh::points_t& input_points = *m_input_mesh.pipeline_value()->points;
const k3d::mesh::points_t& output_points = *m_output_mesh.pipeline_value()->points;
for(k3d::uint_t point = 0; point != input_points.size(); ++point)
{
// Note: exact compare should work here, since we copied from the original array
if(input_points[point] != output_points[point])
tweaks.append(k3d::xml::element("tweak", k3d::xml::attribute("index", point), k3d::xml::attribute("value", output_points[point])));
}
}
void load(k3d::xml::element& Element, const k3d::ipersistent::load_context& Context)
{
base::load(Element, Context);
k3d::xml::element* const tweaks = k3d::xml::find_element(Element, "tweaks");
return_if_fail(tweaks);
tweaks_t loaded_tweaks;
size_t count = 0;
for(k3d::xml::element::elements_t::iterator element = tweaks->children.begin(); element != tweaks->children.end(); ++element)
{
if(element->name == "tweak")
{
size_t index = k3d::xml::attribute_value<size_t>(*element, "index", count);
k3d::point3 value = k3d::xml::attribute_value<k3d::point3>(*element, "value", k3d::point3(0, 0, 0));
if (value != k3d::point3(0,0,0)) // Skip zeros from old file format
{
loaded_tweaks.first.push_back(index);
loaded_tweaks.second.push_back(value);
}
++count;
}
else
{
k3d::log() << warning << k3d_file_reference << ": unknown element \"" << element->name << "\" will be ignored ... " << std::endl;
}
}
m_tweaks.set_value(loaded_tweaks);
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<tweak_points,
k3d::interface_list<k3d::imesh_source,
k3d::interface_list<k3d::imesh_sink > > > factory(
k3d::uuid(0xed302b87, 0x49bf4fe6, 0x99064963, 0x17ec12d9),
"TweakPoints",
_("Sets the point positions at the given indices"),
"Deformation",
k3d::iplugin_factory::STABLE);
return factory;
}
private:
k3d_data(tweaks_t, immutable_name, change_signal, no_undo, local_storage, no_constraint, writable_property, no_serialization) m_tweaks;
/// Stores the cumulative result of all the tweaks
k3d::pipeline_data<k3d::mesh::points_t> m_tweaked_points;
class tweaks_container :
public k3d::istate_container
{
public:
tweaks_container(k3d::iproperty& Tweaks, const k3d::mesh::indices_t& StoredIndices, const k3d::mesh::points_t& StoredPoints) :
m_tweaks(Tweaks),
m_stored_indices(StoredIndices),
m_stored_points(StoredPoints)
{
}
void restore_state()
{
k3d::property::set_internal_value(m_tweaks, std::make_pair(m_stored_indices, m_stored_points));
}
private:
k3d::iproperty& m_tweaks;
const k3d::mesh::indices_t m_stored_indices;
const k3d::mesh::points_t m_stored_points;
};
};
/////////////////////////////////////////////////////////////////////////////
// tweak_points_factory
k3d::iplugin_factory& tweak_points_factory()
{
return tweak_points::get_factory();
}
} // namespace deformation
} // namespace module
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