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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "BLI_task.hh"
#include "BKE_spline.hh"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_legacy_curve_select_by_handle_type_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Geometry"));
b.add_input<decl::String>(N_("Selection"));
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void node_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
{
uiItemR(layout, ptr, "mode", UI_ITEM_R_EXPAND, nullptr, ICON_NONE);
uiItemR(layout, ptr, "handle_type", 0, "", ICON_NONE);
}
static void node_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryCurveSelectHandles *data = (NodeGeometryCurveSelectHandles *)MEM_callocN(
sizeof(NodeGeometryCurveSelectHandles), __func__);
data->handle_type = GEO_NODE_CURVE_HANDLE_AUTO;
data->mode = GEO_NODE_CURVE_HANDLE_LEFT | GEO_NODE_CURVE_HANDLE_RIGHT;
node->storage = data;
}
static BezierSpline::HandleType handle_type_from_input_type(const GeometryNodeCurveHandleType type)
{
switch (type) {
case GEO_NODE_CURVE_HANDLE_AUTO:
return BezierSpline::HandleType::Auto;
case GEO_NODE_CURVE_HANDLE_ALIGN:
return BezierSpline::HandleType::Align;
case GEO_NODE_CURVE_HANDLE_FREE:
return BezierSpline::HandleType::Free;
case GEO_NODE_CURVE_HANDLE_VECTOR:
return BezierSpline::HandleType::Vector;
}
BLI_assert_unreachable();
return BezierSpline::HandleType::Auto;
}
static void select_curve_by_handle_type(const CurveEval &curve,
const BezierSpline::HandleType type,
const GeometryNodeCurveHandleMode mode,
const MutableSpan<bool> r_selection)
{
const Array<int> offsets = curve.control_point_offsets();
Span<SplinePtr> splines = curve.splines();
threading::parallel_for(splines.index_range(), 128, [&](IndexRange range) {
for (const int i_spline : range) {
const Spline &spline = *splines[i_spline];
if (spline.type() == Spline::Type::Bezier) {
const BezierSpline &bezier_spline = static_cast<const BezierSpline &>(spline);
Span<BezierSpline::HandleType> types_left = bezier_spline.handle_types_left();
Span<BezierSpline::HandleType> types_right = bezier_spline.handle_types_right();
for (const int i_point : IndexRange(bezier_spline.size())) {
r_selection[offsets[i_spline] + i_point] = (mode & GEO_NODE_CURVE_HANDLE_LEFT &&
types_left[i_point] == type) ||
(mode & GEO_NODE_CURVE_HANDLE_RIGHT &&
types_right[i_point] == type);
}
}
else {
r_selection.slice(offsets[i_spline], offsets[i_spline + 1]).fill(false);
}
}
});
}
static void node_geo_exec(GeoNodeExecParams params)
{
const NodeGeometryCurveSelectHandles *storage =
(const NodeGeometryCurveSelectHandles *)params.node().storage;
const BezierSpline::HandleType handle_type = handle_type_from_input_type(
(GeometryNodeCurveHandleType)storage->handle_type);
const GeometryNodeCurveHandleMode mode = (GeometryNodeCurveHandleMode)storage->mode;
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
geometry_set = geometry::realize_instances_legacy(geometry_set);
CurveComponent &curve_component = geometry_set.get_component_for_write<CurveComponent>();
const CurveEval *curve = curve_component.get_for_read();
if (curve != nullptr) {
const std::string selection_name = params.extract_input<std::string>("Selection");
OutputAttribute_Typed<bool> selection =
curve_component.attribute_try_get_for_output_only<bool>(selection_name, ATTR_DOMAIN_POINT);
if (selection) {
select_curve_by_handle_type(*curve, handle_type, mode, selection.as_span());
selection.save();
}
}
params.set_output("Geometry", std::move(geometry_set));
}
} // namespace blender::nodes::node_geo_legacy_curve_select_by_handle_type_cc
void register_node_type_geo_legacy_select_by_handle_type()
{
namespace file_ns = blender::nodes::node_geo_legacy_curve_select_by_handle_type_cc;
static bNodeType ntype;
geo_node_type_base(&ntype,
GEO_NODE_LEGACY_CURVE_SELECT_HANDLES,
"Select by Handle Type",
NODE_CLASS_GEOMETRY,
0);
ntype.declare = file_ns::node_declare;
ntype.geometry_node_execute = file_ns::node_geo_exec;
node_type_init(&ntype, file_ns::node_init);
node_type_storage(&ntype,
"NodeGeometryCurveSelectHandles",
node_free_standard_storage,
node_copy_standard_storage);
ntype.draw_buttons = file_ns::node_layout;
nodeRegisterType(&ntype);
}
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