dacae33cbe
Add a description for function nodes and a few geometry nodes and a few shader nodes. Pull Request: https://projects.blender.org/blender/blender/pulls/145772
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "BLI_string_utf8.h"
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#include "node_function_util.hh"
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namespace blender::nodes::node_fn_slice_string_cc {
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static void node_declare(NodeDeclarationBuilder &b)
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{
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b.use_custom_socket_order();
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b.allow_any_socket_order();
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b.add_input<decl::String>("String").hide_label();
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b.add_output<decl::String>("String").align_with_previous();
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b.add_input<decl::Int>("Position");
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b.add_input<decl::Int>("Length").min(0).default_value(10);
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}
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static void node_build_multi_function(NodeMultiFunctionBuilder &builder)
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{
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static auto slice_fn = mf::build::SI3_SO<std::string, int, int, std::string>(
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"Slice", [](const std::string &str, int a, int b) {
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const int start = BLI_str_utf8_offset_from_index(str.c_str(), str.size(), std::max(0, a));
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const int end = BLI_str_utf8_offset_from_index(
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str.c_str(), str.size(), std::max(0, a + b));
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return str.substr(start, std::max<int>(end - start, 0));
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});
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builder.set_matching_fn(&slice_fn);
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}
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static void node_register()
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{
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static blender::bke::bNodeType ntype;
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fn_node_type_base(&ntype, "FunctionNodeSliceString", FN_NODE_SLICE_STRING);
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ntype.ui_name = "Slice String";
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ntype.ui_description = "Extract a string segment from a larger string";
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ntype.enum_name_legacy = "SLICE_STRING";
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ntype.nclass = NODE_CLASS_CONVERTER;
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ntype.declare = node_declare;
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ntype.build_multi_function = node_build_multi_function;
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blender::bke::node_register_type(ntype);
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}
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NOD_REGISTER_NODE(node_register)
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} // namespace blender::nodes::node_fn_slice_string_cc
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