diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/node_geo_curve_handle_type_selection.cc')
| -rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_curve_handle_type_selection.cc | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_handle_type_selection.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_handle_type_selection.cc new file mode 100644 index 00000000000..dc2070f20e6 --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_curve_handle_type_selection.cc @@ -0,0 +1,180 @@ +/* + * 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 { + +static void geo_node_curve_handle_type_selection_declare(NodeDeclarationBuilder &b) +{ + b.add_output<decl::Bool>("Selection").field_source(); +} + +static void geo_node_curve_handle_type_selection_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 geo_node_curve_handle_type_selection_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_by_handle_type(const CurveEval &curve, + const BezierSpline::HandleType type, + const GeometryNodeCurveHandleMode mode, + const IndexMask mask, + const MutableSpan<bool> r_selection) +{ + int offset = 0; + for (const SplinePtr &spline : curve.splines()) { + if (spline->type() != Spline::Type::Bezier) { + r_selection.slice(offset, spline->size()).fill(false); + offset += spline->size(); + } + else { + BezierSpline *b = static_cast<BezierSpline *>(spline.get()); + for (int i : IndexRange(b->size())) { + if (mode & GeometryNodeCurveHandleMode::GEO_NODE_CURVE_HANDLE_LEFT) { + r_selection[offset++] = b->handle_types_left()[i] == type; + } + else if (mode & GeometryNodeCurveHandleMode::GEO_NODE_CURVE_HANDLE_RIGHT) { + r_selection[offset++] = b->handle_types_right()[i] == type; + } + } + } + } +} + +class HandleTypeFieldInput final : public fn::FieldInput { + BezierSpline::HandleType type_; + GeometryNodeCurveHandleMode mode_; + + public: + HandleTypeFieldInput(BezierSpline::HandleType type, GeometryNodeCurveHandleMode mode) + : FieldInput(CPPType::get<bool>(), "Selection"), type_(type), mode_(mode) + { + } + + const GVArray *get_varray_for_context(const fn::FieldContext &context, + IndexMask mask, + ResourceScope &scope) const final + { + if (const GeometryComponentFieldContext *geometry_context = + dynamic_cast<const GeometryComponentFieldContext *>(&context)) { + + const GeometryComponent &component = geometry_context->geometry_component(); + const AttributeDomain domain = geometry_context->domain(); + if (component.type() != GEO_COMPONENT_TYPE_CURVE) { + return nullptr; + } + + const CurveComponent &curve_component = static_cast<const CurveComponent &>(component); + const CurveEval *curve = curve_component.get_for_read(); + if (curve == nullptr) { + return nullptr; + } + + if (domain == ATTR_DOMAIN_POINT) { + Array<bool> selection(mask.min_array_size()); + select_by_handle_type(*curve, type_, mode_, mask, selection); + return &scope.construct<fn::GVArray_For_ArrayContainer<Array<bool>>>(std::move(selection)); + } + } + return nullptr; + }; + + uint64_t hash() const override + { + return get_default_hash_2((int)mode_, (int)type_); + } + + bool is_equal_to(const fn::FieldNode &other) const override + { + return dynamic_cast<const HandleTypeFieldInput *>(&other) != nullptr; + if (const HandleTypeFieldInput *other_handle_selection = + dynamic_cast<const HandleTypeFieldInput *>(&other)) { + return mode_ == other_handle_selection->mode_ && type_ == other_handle_selection->type_; + } + return false; + } +}; + +static void geo_node_curve_handle_type_selection_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; + + Field<bool> selection_field{std::make_shared<HandleTypeFieldInput>(handle_type, mode)}; + params.set_output("Selection", std::move(selection_field)); +} + +} // namespace blender::nodes + +void register_node_type_geo_curve_handle_type_selection() +{ + static bNodeType ntype; + + geo_node_type_base(&ntype, + GEO_NODE_CURVE_HANDLE_TYPE_SELECTION, + "Handle Type Selection", + NODE_CLASS_GEOMETRY, + 0); + ntype.declare = blender::nodes::geo_node_curve_handle_type_selection_declare; + ntype.geometry_node_execute = blender::nodes::geo_node_curve_handle_type_selection_exec; + node_type_init(&ntype, blender::nodes::geo_node_curve_handle_type_selection_init); + node_type_storage(&ntype, + "NodeGeometryCurveSelectHandles", + node_free_standard_storage, + node_copy_standard_storage); + ntype.draw_buttons = blender::nodes::geo_node_curve_handle_type_selection_layout; + + nodeRegisterType(&ntype); +} |