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// K-3D
// Copyright (c) 1995-2009, 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 Tim Shead (tshead@k-3d.com)
*/
#include <k3d-i18n-config.h>
#include <k3dsdk/algebra.h>
#include <k3dsdk/document_plugin_factory.h>
#include <k3dsdk/isnappable.h>
#include <k3dsdk/isnap_source.h>
#include <k3dsdk/isnap_target.h>
#include <k3dsdk/measurement.h>
#include <k3dsdk/node.h>
#include <k3dsdk/transformable.h>
#include <k3dsdk/transform.h>
namespace module
{
namespace matrix
{
/////////////////////////////////////////////////////////////////////////////
// get_snap_source
k3d::isnap_source* get_snap_source(k3d::iunknown* Snappable)
{
k3d::isnappable* const snappable = dynamic_cast<k3d::isnappable*>(Snappable);
if(!snappable)
return 0;
const k3d::isnappable::snap_sources_t sources = snappable->snap_sources();
if(sources.empty())
return 0;
return sources[0];
}
//////////////////////////////////////////////////////////////////////////////
// get_snap_target
k3d::isnap_target* get_snap_target(k3d::iunknown* Snappable)
{
k3d::isnappable* const snappable = dynamic_cast<k3d::isnappable*>(Snappable);
if(!snappable)
return 0;
const k3d::isnappable::snap_targets_t targets = snappable->snap_targets();
if(targets.empty())
return 0;
return targets[0];
}
////////////////////////////////////////////////////////////////////////////////////
// snap
class snap :
public k3d::transformable<k3d::node >
{
typedef k3d::transformable<k3d::node > base;
public:
snap(k3d::iplugin_factory& Factory, k3d::idocument& Document) :
base(Factory, Document),
m_source(init_owner(*this) + init_name("source") + init_label(_("Source Node")) + init_description(_("Source Node")) + init_value(static_cast<k3d::isnappable*>(0))),
m_snap_source(init_owner(*this) + init_name("snap_source") + init_label(_("Snap Source")) + init_description(_("Snap Source")) + init_value(std::string("-- None --")) + init_values(m_snap_sources)),
m_target(init_owner(*this) + init_name("target") + init_label(_("Target Node")) + init_description(_("Target Node")) + init_value(static_cast<k3d::isnappable*>(0))),
m_snap_target(init_owner(*this) + init_name("snap_target") + init_label(_("Snap Target")) + init_description(_("Snap Target")) + init_value(std::string("-- None --")) + init_values(m_snap_targets)),
m_snap_orientation(init_owner(*this) + init_name("snap_orientation") + init_label(_("Snap Orientation")) + init_description(_("Snap Orientation")) + init_value(true))
{
m_source.changed_signal().connect(sigc::mem_fun(*this, &snap::on_source_changed));
m_target.changed_signal().connect(sigc::mem_fun(*this, &snap::on_target_changed));
m_source.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_matrix_slot()));
m_snap_source.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_matrix_slot()));
m_target.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_matrix_slot()));
m_snap_target.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_matrix_slot()));
m_snap_orientation.changed_signal().connect(k3d::hint::converter<
k3d::hint::convert<k3d::hint::any, k3d::hint::none> >(make_update_matrix_slot()));
on_source_changed();
on_target_changed();
}
void on_source_changed(k3d::ihint* Hint = 0)
{
m_snap_sources.clear();
m_snap_sources.push_back(k3d::ienumeration_property::enumeration_value_t("-- None --", "-- None --", "-- None --"));
if(k3d::isnappable* const snappable = m_source.pipeline_value())
{
const k3d::isnappable::snap_sources_t sources = snappable->snap_sources();
for(k3d::isnappable::snap_sources_t::const_iterator source = sources.begin(); source != sources.end(); ++source)
m_snap_sources.push_back(k3d::ienumeration_property::enumeration_value_t((*source)->label(), (*source)->label(), (*source)->label()));
}
m_snap_source.notify_enumeration_values_changed();
}
void on_target_changed(k3d::ihint* Hint = 0)
{
m_snap_targets.clear();
m_snap_targets.push_back(k3d::ienumeration_property::enumeration_value_t("-- None --", "-- None --", "-- None --"));
if(k3d::isnappable* const snappable = m_target.pipeline_value())
{
const k3d::isnappable::snap_targets_t targets = snappable->snap_targets();
for(k3d::isnappable::snap_targets_t::const_iterator target = targets.begin(); target != targets.end(); ++target)
m_snap_targets.push_back(k3d::ienumeration_property::enumeration_value_t((*target)->label(), (*target)->label(), (*target)->label()));
}
m_snap_target.notify_enumeration_values_changed();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::document_plugin_factory<snap,
k3d::interface_list<k3d::imatrix_source,
k3d::interface_list<k3d::imatrix_sink > > > factory(
k3d::uuid(0x176d4553, 0x65fc48ca, 0x845a8160, 0xd31b41ae),
"Snap",
_("Snaps one node to another"),
"Matrix",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_data(k3d::isnappable*, immutable_name, change_signal, with_undo, node_storage, no_constraint, node_property, node_serialization) m_source;
k3d_data(std::string, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_snap_source;
k3d_data(k3d::isnappable*, immutable_name, change_signal, with_undo, node_storage, no_constraint, node_property, node_serialization) m_target;
k3d_data(std::string, immutable_name, change_signal, with_undo, local_storage, no_constraint, enumeration_property, with_serialization) m_snap_target;
k3d_data(bool, immutable_name, change_signal, with_undo, local_storage, no_constraint, writable_property, with_serialization) m_snap_orientation;
k3d::ienumeration_property::enumeration_values_t m_snap_sources;
k3d::ienumeration_property::enumeration_values_t m_snap_targets;
void on_update_matrix(const k3d::matrix4& Input, k3d::matrix4& Output)
{
k3d::isnappable* const source_node = m_source.pipeline_value();
k3d::isnappable* const target_node = m_target.pipeline_value();
k3d::isnap_source* const source = get_snap_source(source_node);
if(!source)
{
Output = Input;
return;
}
k3d::isnap_target* const target = get_snap_target(target_node);
if(!target)
{
Output = Input;
return;
}
const k3d::matrix4 source_matrix = k3d::node_to_world_matrix(*source_node);
const k3d::matrix4 target_matrix = k3d::node_to_world_matrix(*target_node);
const k3d::point3 source_position = k3d::inverse(target_matrix) * source_matrix * source->source_position();
k3d::point3 target_position;
if(!target->target_position(source_position, target_position))
{
Output = Input;
return;
}
/*
if(m_snap_orientation.pipeline_value())
{
k3d::vector3 source_orientation;
if(source->source_orientation(source_orientation))
{
source_orientation = k3d::inverse(target_matrix) * source_matrix * source_orientation;
// Calculate the target orientation in world coordinates
k3d::vector3 target_orientation;
if(target->target_orientation(source_position, target_orientation))
{
k3d::matrix4 rotation = k3d::rotate3(k3d::angle_axis(
std::acos(k3d::normalize(source_orientation) * k3d::normalize(target_orientation)),
source_orientation ^ target_orientation));
return k3d::translate3(target_position - source_position) * input_matrix * rotation;
}
}
}
*/
Output = k3d::translate3(target_position - source_position) * Input;
}
};
/////////////////////////////////////////////////////////////////////////////
// snap_factory
k3d::iplugin_factory& snap_factory()
{
return snap::get_factory();
}
} // namespace matrix
} // namespace module
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