diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_curve_set_handles.cc')
-rw-r--r-- | source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_curve_set_handles.cc | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_curve_set_handles.cc b/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_curve_set_handles.cc new file mode 100644 index 00000000000..1e476d01148 --- /dev/null +++ b/source/blender/nodes/geometry/nodes/legacy/node_geo_legacy_curve_set_handles.cc @@ -0,0 +1,144 @@ +/* + * 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 "BKE_spline.hh" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "node_geometry_util.hh" + +namespace blender::nodes::node_geo_legacy_curve_set_handles_cc { + +static void node_decalre(NodeDeclarationBuilder &b) +{ + b.add_input<decl::Geometry>(N_("Curve")); + b.add_input<decl::String>(N_("Selection")); + b.add_output<decl::Geometry>(N_("Curve")); +} + +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) +{ + NodeGeometryCurveSetHandles *data = (NodeGeometryCurveSetHandles *)MEM_callocN( + sizeof(NodeGeometryCurveSetHandles), __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(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 node_geo_exec(GeoNodeExecParams params) +{ + const NodeGeometryCurveSetHandles *node_storage = + (NodeGeometryCurveSetHandles *)params.node().storage; + const GeometryNodeCurveHandleType type = (GeometryNodeCurveHandleType)node_storage->handle_type; + const GeometryNodeCurveHandleMode mode = (GeometryNodeCurveHandleMode)node_storage->mode; + + GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve"); + geometry_set = geometry::realize_instances_legacy(geometry_set); + if (!geometry_set.has_curve()) { + params.set_output("Curve", geometry_set); + return; + } + + /* Retrieve data for write access so we can avoid new allocations for the handles data. */ + CurveComponent &curve_component = geometry_set.get_component_for_write<CurveComponent>(); + CurveEval &curve = *curve_component.get_for_write(); + MutableSpan<SplinePtr> splines = curve.splines(); + + const std::string selection_name = params.extract_input<std::string>("Selection"); + VArray<bool> selection = curve_component.attribute_get_for_read( + selection_name, ATTR_DOMAIN_POINT, true); + + const BezierSpline::HandleType new_handle_type = handle_type_from_input_type(type); + int point_index = 0; + bool has_bezier_spline = false; + for (SplinePtr &spline : splines) { + if (spline->type() != Spline::Type::Bezier) { + point_index += spline->positions().size(); + continue; + } + + BezierSpline &bezier_spline = static_cast<BezierSpline &>(*spline); + if (ELEM(new_handle_type, BezierSpline::HandleType::Free, BezierSpline::HandleType::Align)) { + /* In this case the automatically calculated handle types need to be "baked", because + * they're possibly changing from a type that is calculated automatically to a type that + * is positioned manually. */ + bezier_spline.ensure_auto_handles(); + } + has_bezier_spline = true; + for (int i_point : IndexRange(bezier_spline.size())) { + if (selection[point_index]) { + if (mode & GEO_NODE_CURVE_HANDLE_LEFT) { + bezier_spline.handle_types_left()[i_point] = new_handle_type; + } + if (mode & GEO_NODE_CURVE_HANDLE_RIGHT) { + bezier_spline.handle_types_right()[i_point] = new_handle_type; + } + } + point_index++; + } + bezier_spline.mark_cache_invalid(); + } + + if (!has_bezier_spline) { + params.error_message_add(NodeWarningType::Info, TIP_("No Bezier splines in input curve")); + } + + params.set_output("Curve", geometry_set); +} +} // namespace blender::nodes::node_geo_legacy_curve_set_handles_cc + +void register_node_type_geo_legacy_curve_set_handles() +{ + namespace file_ns = blender::nodes::node_geo_legacy_curve_set_handles_cc; + + static bNodeType ntype; + geo_node_type_base( + &ntype, GEO_NODE_LEGACY_CURVE_SET_HANDLES, "Set Handle Type", NODE_CLASS_GEOMETRY, 0); + ntype.declare = file_ns::node_decalre; + ntype.geometry_node_execute = file_ns::node_geo_exec; + node_type_init(&ntype, file_ns::node_init); + node_type_storage(&ntype, + "NodeGeometryCurveSetHandles", + node_free_standard_storage, + node_copy_standard_storage); + ntype.draw_buttons = file_ns::node_layout; + + nodeRegisterType(&ntype); +} |