armature_selection.cc

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "BKE_armature.hh"
 
#include "BLI_listbase.h"
 
#include "DNA_action_types.h"
#include "DNA_armature_types.h"
 
#include "ANIM_bone_collections.hh"
 
namespace blender::bke {
 
namespace {
 
void find_selected_bones__visit_bone(const bArmature *armature,
                                     SelectedBoneCallback callback,
                                     SelectedBonesResult &result,
                                     Bone *bone)
{
  const bool is_selected = PBONE_SELECTED(armature, bone);
  result.all_bones_selected &= is_selected;
  result.no_bones_selected &= !is_selected;
 
  if (is_selected) {
    callback(bone);
  }
 
  LISTBASE_FOREACH (Bone *, child_bone, &bone->childbase) {
    find_selected_bones__visit_bone(armature, callback, result, child_bone);
  }
}
}  // namespace
 
SelectedBonesResult BKE_armature_find_selected_bones(const bArmature *armature,
                                                     SelectedBoneCallback callback)
{
  SelectedBonesResult result;
  LISTBASE_FOREACH (Bone *, root_bone, &armature->bonebase) {
    find_selected_bones__visit_bone(armature, callback, result, root_bone);
  }
 
  return result;
}
 
BoneNameSet BKE_armature_find_selected_bone_names(const bArmature *armature)
{
  BoneNameSet selected_bone_names;
 
  /* Iterate over the selected bones to fill the set of bone names. */
  auto callback = [&](Bone *bone) { selected_bone_names.add(bone->name); };
  SelectedBonesResult result = BKE_armature_find_selected_bones(armature, callback);
 
  /* If no bones are selected, act as if all are. */
  if (result.all_bones_selected || result.no_bones_selected) {
    return BoneNameSet();
  }
 
  return selected_bone_names;
}
 
}  // namespace blender::bke