diff options
Diffstat (limited to 'source/blender/blenkernel/intern/armature_pose.cc')
-rw-r--r-- | source/blender/blenkernel/intern/armature_pose.cc | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/armature_pose.cc b/source/blender/blenkernel/intern/armature_pose.cc new file mode 100644 index 00000000000..bb371b16c42 --- /dev/null +++ b/source/blender/blenkernel/intern/armature_pose.cc @@ -0,0 +1,133 @@ +/* + * 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. + * + * The Original Code is Copyright (C) 2015 Blender Foundation. + * All rights reserved. + * + * Defines and code for core node types + */ + +/** \file + * \ingroup bke + */ + +#include "BKE_animsys.h" +#include "BKE_armature.h" + +#include "BLI_set.hh" + +#include "DNA_action_types.h" +#include "DNA_anim_types.h" +#include "DNA_armature_types.h" +#include "DNA_object_types.h" + +#include "RNA_access.h" + +namespace { +using BoneNameSet = blender::Set<std::string>; + +// Forward declarations. +BoneNameSet pose_apply_find_selected_bones(const bPose *pose); +void pose_apply_disable_fcurves_for_unselected_bones(bAction *action, + const BoneNameSet &selected_bone_names); +void pose_apply_restore_fcurves(bAction *action); +} // namespace + +void BKE_pose_apply_action(struct Object *ob, + struct bAction *action, + struct AnimationEvalContext *anim_eval_context) +{ + bPose *pose = ob->pose; + if (pose == nullptr) { + return; + } + + const BoneNameSet selected_bone_names = pose_apply_find_selected_bones(pose); + const bool limit_to_selected_bones = !selected_bone_names.is_empty(); + + if (limit_to_selected_bones) { + /* Mute all FCurves that are not associated with selected bones. This separates the concept of + * bone selection from the FCurve evaluation code. */ + pose_apply_disable_fcurves_for_unselected_bones(action, selected_bone_names); + } + + /* Apply the Action. */ + PointerRNA pose_owner_ptr; + RNA_id_pointer_create(&ob->id, &pose_owner_ptr); + animsys_evaluate_action(&pose_owner_ptr, action, anim_eval_context, false); + + if (limit_to_selected_bones) { + pose_apply_restore_fcurves(action); + } +} + +namespace { +BoneNameSet pose_apply_find_selected_bones(const bPose *pose) +{ + BoneNameSet selected_bone_names; + bool all_bones_selected = true; + bool no_bones_selected = true; + + LISTBASE_FOREACH (bPoseChannel *, pchan, &pose->chanbase) { + const bool is_selected = (pchan->bone->flag & BONE_SELECTED) != 0 && + (pchan->bone->flag & BONE_HIDDEN_P) == 0; + all_bones_selected &= is_selected; + no_bones_selected &= !is_selected; + + if (is_selected) { + /* Bone names are unique, so no need to check for duplicates. */ + selected_bone_names.add_new(pchan->name); + } + } + + /* If no bones are selected, act as if all are. */ + if (all_bones_selected || no_bones_selected) { + return BoneNameSet(); /* An empty set means "ignore bone selection". */ + } + return selected_bone_names; +} + +void pose_apply_restore_fcurves(bAction *action) +{ + /* TODO(Sybren): Restore the FCurve flags, instead of just erasing the 'disabled' flag. */ + LISTBASE_FOREACH (FCurve *, fcu, &action->curves) { + fcu->flag &= ~FCURVE_DISABLED; + } +} + +void pose_apply_disable_fcurves_for_unselected_bones(bAction *action, + const BoneNameSet &selected_bone_names) +{ + LISTBASE_FOREACH (FCurve *, fcu, &action->curves) { + if (!fcu->rna_path || !strstr(fcu->rna_path, "pose.bones[")) { + continue; + } + + /* Get bone name, and check if this bone is selected. */ + char *bone_name = BLI_str_quoted_substrN(fcu->rna_path, "pose.bones["); + if (!bone_name) { + continue; + } + const bool is_selected = selected_bone_names.contains(bone_name); + MEM_freeN(bone_name); + if (is_selected) { + continue; + } + + fcu->flag |= FCURVE_DISABLED; + } +} + +} // namespace |