654 lines
19 KiB
C++
654 lines
19 KiB
C++
/* SPDX-FileCopyrightText: 2021 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup edarmature
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*/
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#include <cmath>
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#include <cstring>
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#include "AS_asset_representation.hh"
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#include "MEM_guardedalloc.h"
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#include "BLI_string.h"
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#include "BLT_translation.h"
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#include "DNA_armature_types.h"
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#include "BKE_action.h"
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#include "BKE_anim_data.h"
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#include "BKE_animsys.h"
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#include "BKE_armature.hh"
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#include "BKE_context.hh"
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#include "BKE_lib_id.h"
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#include "BKE_object.hh"
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#include "BKE_pose_backup.h"
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#include "BKE_report.h"
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#include "DEG_depsgraph.hh"
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#include "RNA_access.hh"
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#include "RNA_define.hh"
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#include "RNA_prototypes.h"
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#include "WM_api.hh"
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#include "WM_types.hh"
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#include "UI_interface.hh"
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#include "ED_asset.hh"
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#include "ED_keyframing.hh"
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#include "ED_screen.hh"
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#include "ED_util.hh"
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#include "ANIM_bone_collections.h"
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#include "ANIM_keyframing.hh"
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#include "armature_intern.h"
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enum ePoseBlendState {
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POSE_BLEND_INIT,
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POSE_BLEND_BLENDING,
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POSE_BLEND_ORIGINAL,
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POSE_BLEND_CONFIRM,
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POSE_BLEND_CANCEL,
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};
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struct PoseBlendData {
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ePoseBlendState state;
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bool needs_redraw;
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struct {
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bool use_release_confirm;
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int init_event_type;
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} release_confirm_info;
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/* For temp-loading the Action from the pose library. */
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AssetTempIDConsumer *temp_id_consumer;
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/* Blend factor for interpolating between current and given pose.
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* 1.0 means "100% pose asset". Negative values and values > 1.0 will be used as-is, and can
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* cause interesting effects. */
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float blend_factor;
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bool is_flipped;
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PoseBackup *pose_backup;
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Object *ob; /* Object to work on. */
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bAction *act; /* Pose to blend into the current pose. */
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bAction *act_flipped; /* Flipped copy of `act`. */
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Scene *scene; /* For auto-keying. */
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ScrArea *area; /* For drawing status text. */
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tSlider *slider; /* Slider UI and event handling. */
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/** Info-text to print in header. */
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char headerstr[UI_MAX_DRAW_STR];
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};
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/**
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* Return the bAction that should be blended.
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* This is either `pbd->act` or `pbd->act_flipped`, depending on `is_flipped`.
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*/
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static bAction *poselib_action_to_blend(PoseBlendData *pbd)
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{
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return pbd->is_flipped ? pbd->act_flipped : pbd->act;
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}
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/* Makes a copy of the current pose for restoration purposes - doesn't do constraints currently */
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static void poselib_backup_posecopy(PoseBlendData *pbd)
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{
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const bAction *action = poselib_action_to_blend(pbd);
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pbd->pose_backup = BKE_pose_backup_create_selected_bones(pbd->ob, action);
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if (pbd->state == POSE_BLEND_INIT) {
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/* Ready for blending now. */
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pbd->state = POSE_BLEND_BLENDING;
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}
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}
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/* ---------------------------- */
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/* Auto-key/tag bones affected by the pose Action. */
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static void poselib_keytag_pose(bContext *C, Scene *scene, PoseBlendData *pbd)
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{
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if (!blender::animrig::autokeyframe_cfra_can_key(scene, &pbd->ob->id)) {
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return;
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}
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AnimData *adt = BKE_animdata_from_id(&pbd->ob->id);
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if (adt != nullptr && adt->action != nullptr &&
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!BKE_id_is_editable(CTX_data_main(C), &adt->action->id))
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{
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/* Changes to linked-in Actions are not allowed. */
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return;
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}
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bPose *pose = pbd->ob->pose;
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bAction *act = poselib_action_to_blend(pbd);
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KeyingSet *ks = ANIM_get_keyingset_for_autokeying(scene, ANIM_KS_WHOLE_CHARACTER_ID);
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blender::Vector<PointerRNA> sources;
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/* start tagging/keying */
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const bArmature *armature = static_cast<const bArmature *>(pbd->ob->data);
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LISTBASE_FOREACH (bActionGroup *, agrp, &act->groups) {
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/* Only for selected bones unless there aren't any selected, in which case all are included. */
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bPoseChannel *pchan = BKE_pose_channel_find_name(pose, agrp->name);
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if (pchan == nullptr) {
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continue;
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}
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if (BKE_pose_backup_is_selection_relevant(pbd->pose_backup) &&
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!PBONE_SELECTED(armature, pchan->bone))
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{
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continue;
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}
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/* Add data-source override for the PoseChannel, to be used later. */
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ANIM_relative_keyingset_add_source(sources, &pbd->ob->id, &RNA_PoseBone, pchan);
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}
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/* Perform actual auto-keying. */
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ANIM_apply_keyingset(C, &sources, ks, MODIFYKEY_MODE_INSERT, float(scene->r.cfra));
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/* send notifiers for this */
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WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, nullptr);
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}
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/* Apply the relevant changes to the pose */
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static void poselib_blend_apply(bContext *C, wmOperator *op)
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{
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PoseBlendData *pbd = (PoseBlendData *)op->customdata;
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if (!pbd->needs_redraw) {
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return;
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}
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pbd->needs_redraw = false;
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BKE_pose_backup_restore(pbd->pose_backup);
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/* The pose needs updating, whether it's for restoring the original pose or for showing the
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* result of the blend. */
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DEG_id_tag_update(&pbd->ob->id, ID_RECALC_GEOMETRY);
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WM_event_add_notifier(C, NC_OBJECT | ND_POSE, pbd->ob);
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if (pbd->state != POSE_BLEND_BLENDING) {
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return;
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}
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/* Perform the actual blending. */
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Depsgraph *depsgraph = CTX_data_depsgraph_pointer(C);
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AnimationEvalContext anim_eval_context = BKE_animsys_eval_context_construct(depsgraph, 0.0f);
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bAction *to_blend = poselib_action_to_blend(pbd);
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BKE_pose_apply_action_blend(pbd->ob, to_blend, &anim_eval_context, pbd->blend_factor);
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}
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/* ---------------------------- */
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static void poselib_blend_set_factor(PoseBlendData *pbd, const float new_factor)
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{
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pbd->blend_factor = new_factor;
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pbd->needs_redraw = true;
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}
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static void poselib_set_flipped(PoseBlendData *pbd, const bool new_flipped)
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{
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if (pbd->is_flipped == new_flipped) {
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return;
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}
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/* The pose will toggle between flipped and normal. This means the pose
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* backup has to change, as it only contains the bones for one side. */
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BKE_pose_backup_restore(pbd->pose_backup);
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BKE_pose_backup_free(pbd->pose_backup);
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pbd->is_flipped = new_flipped;
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pbd->needs_redraw = true;
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poselib_backup_posecopy(pbd);
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}
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/* Return operator return value. */
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static int poselib_blend_handle_event(bContext * /*C*/, wmOperator *op, const wmEvent *event)
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{
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
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ED_slider_modal(pbd->slider, event);
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const float factor = ED_slider_factor_get(pbd->slider);
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poselib_blend_set_factor(pbd, factor);
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if (event->type == MOUSEMOVE) {
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return OPERATOR_RUNNING_MODAL;
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}
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/* Handle the release confirm event directly, it has priority over others. */
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if (pbd->release_confirm_info.use_release_confirm &&
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(event->type == pbd->release_confirm_info.init_event_type) && (event->val == KM_RELEASE))
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{
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pbd->state = POSE_BLEND_CONFIRM;
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return OPERATOR_RUNNING_MODAL;
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}
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/* Ctrl manages the 'flipped' state. */
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poselib_set_flipped(pbd, event->modifier & KM_CTRL);
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/* only accept 'press' event, and ignore 'release', so that we don't get double actions */
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if (ELEM(event->val, KM_PRESS, KM_NOTHING) == 0) {
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return OPERATOR_RUNNING_MODAL;
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}
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/* NORMAL EVENT HANDLING... */
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/* searching takes priority over normal activity */
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switch (event->type) {
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/* Exit - cancel. */
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case EVT_ESCKEY:
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case RIGHTMOUSE:
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pbd->state = POSE_BLEND_CANCEL;
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break;
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/* Exit - confirm. */
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case LEFTMOUSE:
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case EVT_RETKEY:
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case EVT_PADENTER:
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case EVT_SPACEKEY:
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pbd->state = POSE_BLEND_CONFIRM;
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break;
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/* TODO(Sybren): toggle between original pose and poselib pose. */
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case EVT_TABKEY:
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pbd->state = pbd->state == POSE_BLEND_BLENDING ? POSE_BLEND_ORIGINAL : POSE_BLEND_BLENDING;
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pbd->needs_redraw = true;
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break;
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}
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return OPERATOR_RUNNING_MODAL;
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}
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/* ---------------------------- */
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static Object *get_poselib_object(bContext *C)
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{
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if (C == nullptr) {
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return nullptr;
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}
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return BKE_object_pose_armature_get(CTX_data_active_object(C));
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}
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static void poselib_tempload_exit(PoseBlendData *pbd)
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{
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ED_asset_temp_id_consumer_free(&pbd->temp_id_consumer);
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}
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static bAction *poselib_blend_init_get_action(bContext *C, wmOperator *op)
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{
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const AssetRepresentationHandle *asset = CTX_wm_asset(C);
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
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pbd->temp_id_consumer = ED_asset_temp_id_consumer_create(asset);
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return (bAction *)ED_asset_temp_id_consumer_ensure_local_id(
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pbd->temp_id_consumer, ID_AC, CTX_data_main(C), op->reports);
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}
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static bAction *flip_pose(bContext *C, Object *ob, bAction *action)
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{
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bAction *action_copy = (bAction *)BKE_id_copy_ex(
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nullptr, &action->id, nullptr, LIB_ID_COPY_LOCALIZE);
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/* Lock the window manager while flipping the pose. Flipping requires temporarily modifying the
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* pose, which can cause unwanted visual glitches. */
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wmWindowManager *wm = CTX_wm_manager(C);
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const bool interface_was_locked = CTX_wm_interface_locked(C);
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WM_set_locked_interface(wm, true);
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BKE_action_flip_with_pose(action_copy, ob);
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WM_set_locked_interface(wm, interface_was_locked);
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return action_copy;
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}
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/* Return true on success, false if the context isn't suitable. */
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static bool poselib_blend_init_data(bContext *C, wmOperator *op, const wmEvent *event)
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{
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op->customdata = nullptr;
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/* check if valid poselib */
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Object *ob = get_poselib_object(C);
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if (ELEM(nullptr, ob, ob->pose, ob->data)) {
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BKE_report(op->reports, RPT_ERROR, TIP_("Pose lib is only for armatures in pose mode"));
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return false;
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}
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/* Set up blend state info. */
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PoseBlendData *pbd;
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op->customdata = pbd = static_cast<PoseBlendData *>(
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MEM_callocN(sizeof(PoseBlendData), "PoseLib Preview Data"));
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pbd->act = poselib_blend_init_get_action(C, op);
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if (pbd->act == nullptr) {
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return false;
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}
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pbd->is_flipped = RNA_boolean_get(op->ptr, "flipped");
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pbd->blend_factor = RNA_float_get(op->ptr, "blend_factor");
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/* Only construct the flipped pose if there is a chance it's actually needed. */
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const bool is_interactive = (event != nullptr);
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if (is_interactive || pbd->is_flipped) {
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pbd->act_flipped = flip_pose(C, ob, pbd->act);
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}
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/* Get the basic data. */
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pbd->ob = ob;
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pbd->ob->pose = ob->pose;
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pbd->scene = CTX_data_scene(C);
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pbd->area = CTX_wm_area(C);
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pbd->state = POSE_BLEND_INIT;
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pbd->needs_redraw = true;
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/* Just to avoid a clang-analyzer warning (false positive), it's set properly below. */
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pbd->release_confirm_info.use_release_confirm = false;
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/* Release confirm data. Only available if there's an event to work with. */
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if (is_interactive) {
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PropertyRNA *release_confirm_prop = RNA_struct_find_property(op->ptr, "release_confirm");
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if (release_confirm_prop && RNA_property_is_set(op->ptr, release_confirm_prop)) {
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pbd->release_confirm_info.use_release_confirm = RNA_property_boolean_get(
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op->ptr, release_confirm_prop);
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}
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else {
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pbd->release_confirm_info.use_release_confirm = event->val != KM_RELEASE;
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}
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pbd->slider = ED_slider_create(C);
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ED_slider_init(pbd->slider, event);
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ED_slider_factor_set(pbd->slider, pbd->blend_factor);
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ED_slider_allow_overshoot_set(pbd->slider, true, true);
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ED_slider_allow_increments_set(pbd->slider, false);
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ED_slider_factor_bounds_set(pbd->slider, -1, 1);
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}
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if (pbd->release_confirm_info.use_release_confirm) {
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BLI_assert(is_interactive);
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pbd->release_confirm_info.init_event_type = WM_userdef_event_type_from_keymap_type(
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event->type);
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}
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/* Make backups for blending and restoring the pose. */
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poselib_backup_posecopy(pbd);
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/* Set pose flags to ensure the depsgraph evaluation doesn't overwrite it. */
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pbd->ob->pose->flag &= ~POSE_DO_UNLOCK;
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pbd->ob->pose->flag |= POSE_LOCKED;
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return true;
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}
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static void poselib_blend_cleanup(bContext *C, wmOperator *op)
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{
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
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wmWindow *win = CTX_wm_window(C);
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/* Redraw the header so that it doesn't show any of our stuff anymore. */
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ED_area_status_text(pbd->area, nullptr);
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ED_workspace_status_text(C, nullptr);
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if (pbd->slider) {
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ED_slider_destroy(C, pbd->slider);
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}
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/* This signals the depsgraph to unlock and reevaluate the pose on the next evaluation. */
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bPose *pose = pbd->ob->pose;
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pose->flag |= POSE_DO_UNLOCK;
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switch (pbd->state) {
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case POSE_BLEND_CONFIRM: {
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Scene *scene = pbd->scene;
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poselib_keytag_pose(C, scene, pbd);
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/* Ensure the redo panel has the actually-used value, instead of the initial value. */
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RNA_float_set(op->ptr, "blend_factor", pbd->blend_factor);
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RNA_boolean_set(op->ptr, "flipped", pbd->is_flipped);
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break;
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}
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case POSE_BLEND_INIT:
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case POSE_BLEND_BLENDING:
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case POSE_BLEND_ORIGINAL:
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/* Cleanup should not be called directly from these states. */
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BLI_assert_msg(0, "poselib_blend_cleanup: unexpected pose blend state");
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BKE_report(op->reports, RPT_ERROR, "Internal pose library error, canceling operator");
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ATTR_FALLTHROUGH;
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case POSE_BLEND_CANCEL:
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BKE_pose_backup_restore(pbd->pose_backup);
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break;
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}
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DEG_id_tag_update(&pbd->ob->id, ID_RECALC_GEOMETRY);
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WM_event_add_notifier(C, NC_OBJECT | ND_POSE, pbd->ob);
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/* Update mouse-hover highlights. */
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WM_event_add_mousemove(win);
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}
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static void poselib_blend_free(wmOperator *op)
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{
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
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if (pbd == nullptr) {
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return;
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}
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if (pbd->act_flipped) {
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BKE_id_free(nullptr, pbd->act_flipped);
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}
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poselib_tempload_exit(pbd);
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/* Free temp data for operator */
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BKE_pose_backup_free(pbd->pose_backup);
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pbd->pose_backup = nullptr;
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MEM_SAFE_FREE(op->customdata);
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}
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static int poselib_blend_exit(bContext *C, wmOperator *op)
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{
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
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const ePoseBlendState exit_state = pbd->state;
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poselib_blend_cleanup(C, op);
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poselib_blend_free(op);
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wmWindow *win = CTX_wm_window(C);
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WM_cursor_modal_restore(win);
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if (exit_state == POSE_BLEND_CANCEL) {
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return OPERATOR_CANCELLED;
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}
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return OPERATOR_FINISHED;
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}
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/* Cancel previewing operation (called when exiting Blender) */
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static void poselib_blend_cancel(bContext *C, wmOperator *op)
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{
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PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
|
|
pbd->state = POSE_BLEND_CANCEL;
|
|
poselib_blend_exit(C, op);
|
|
}
|
|
|
|
/* Main modal status check. */
|
|
static int poselib_blend_modal(bContext *C, wmOperator *op, const wmEvent *event)
|
|
{
|
|
const int operator_result = poselib_blend_handle_event(C, op, event);
|
|
|
|
const PoseBlendData *pbd = static_cast<const PoseBlendData *>(op->customdata);
|
|
if (ELEM(pbd->state, POSE_BLEND_CONFIRM, POSE_BLEND_CANCEL)) {
|
|
return poselib_blend_exit(C, op);
|
|
}
|
|
|
|
if (pbd->needs_redraw) {
|
|
char status_string[UI_MAX_DRAW_STR];
|
|
char slider_string[UI_MAX_DRAW_STR];
|
|
char tab_string[50];
|
|
|
|
ED_slider_status_string_get(pbd->slider, slider_string, sizeof(slider_string));
|
|
|
|
if (pbd->state == POSE_BLEND_BLENDING) {
|
|
STRNCPY(tab_string, TIP_("[Tab] - Show original pose"));
|
|
}
|
|
else {
|
|
STRNCPY(tab_string, TIP_("[Tab] - Show blended pose"));
|
|
}
|
|
|
|
SNPRINTF(status_string, "%s | %s | [Ctrl] - Flip Pose", tab_string, slider_string);
|
|
ED_workspace_status_text(C, status_string);
|
|
|
|
poselib_blend_apply(C, op);
|
|
}
|
|
|
|
return operator_result;
|
|
}
|
|
|
|
/* Modal Operator init. */
|
|
static int poselib_blend_invoke(bContext *C, wmOperator *op, const wmEvent *event)
|
|
{
|
|
if (!poselib_blend_init_data(C, op, event)) {
|
|
poselib_blend_free(op);
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
wmWindow *win = CTX_wm_window(C);
|
|
WM_cursor_modal_set(win, WM_CURSOR_EW_SCROLL);
|
|
|
|
/* Do initial apply to have something to look at. */
|
|
poselib_blend_apply(C, op);
|
|
|
|
WM_event_add_modal_handler(C, op);
|
|
return OPERATOR_RUNNING_MODAL;
|
|
}
|
|
|
|
/* Single-shot apply. */
|
|
static int poselib_blend_exec(bContext *C, wmOperator *op)
|
|
{
|
|
if (!poselib_blend_init_data(C, op, nullptr)) {
|
|
poselib_blend_free(op);
|
|
return OPERATOR_CANCELLED;
|
|
}
|
|
|
|
poselib_blend_apply(C, op);
|
|
|
|
PoseBlendData *pbd = static_cast<PoseBlendData *>(op->customdata);
|
|
pbd->state = POSE_BLEND_CONFIRM;
|
|
return poselib_blend_exit(C, op);
|
|
}
|
|
|
|
static bool poselib_asset_in_context(bContext *C)
|
|
{
|
|
/* Check whether the context provides the asset data needed to add a pose. */
|
|
const AssetRepresentationHandle *asset = CTX_wm_asset(C);
|
|
return asset && (asset->get_id_type() == ID_AC);
|
|
}
|
|
|
|
/* Poll callback for operators that require existing PoseLib data (with poses) to work. */
|
|
static bool poselib_blend_poll(bContext *C)
|
|
{
|
|
Object *ob = get_poselib_object(C);
|
|
if (ELEM(nullptr, ob, ob->pose, ob->data)) {
|
|
/* Pose lib is only for armatures in pose mode. */
|
|
return false;
|
|
}
|
|
|
|
return poselib_asset_in_context(C);
|
|
}
|
|
|
|
void POSELIB_OT_apply_pose_asset(wmOperatorType *ot)
|
|
{
|
|
PropertyRNA *prop;
|
|
|
|
/* Identifiers: */
|
|
ot->name = "Apply Pose Asset";
|
|
ot->idname = "POSELIB_OT_apply_pose_asset";
|
|
ot->description = "Apply the given Pose Action to the rig";
|
|
|
|
/* Callbacks: */
|
|
ot->exec = poselib_blend_exec;
|
|
ot->poll = poselib_blend_poll;
|
|
|
|
/* Flags: */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
|
|
|
|
/* Properties: */
|
|
RNA_def_float_factor(ot->srna,
|
|
"blend_factor",
|
|
1.0f,
|
|
-FLT_MAX,
|
|
FLT_MAX,
|
|
"Blend Factor",
|
|
"Amount that the pose is applied on top of the existing poses. A negative "
|
|
"value will subtract the pose instead of adding it",
|
|
-1.0f,
|
|
1.0f);
|
|
prop = RNA_def_boolean(ot->srna,
|
|
"flipped",
|
|
false,
|
|
"Apply Flipped",
|
|
"When enabled, applies the pose flipped over the X-axis");
|
|
RNA_def_property_flag(prop, PROP_SKIP_SAVE);
|
|
}
|
|
|
|
void POSELIB_OT_blend_pose_asset(wmOperatorType *ot)
|
|
{
|
|
PropertyRNA *prop;
|
|
|
|
/* Identifiers: */
|
|
ot->name = "Blend Pose Asset";
|
|
ot->idname = "POSELIB_OT_blend_pose_asset";
|
|
ot->description = "Blend the given Pose Action to the rig";
|
|
|
|
/* Callbacks: */
|
|
ot->invoke = poselib_blend_invoke;
|
|
ot->modal = poselib_blend_modal;
|
|
ot->cancel = poselib_blend_cancel;
|
|
ot->exec = poselib_blend_exec;
|
|
ot->poll = poselib_blend_poll;
|
|
|
|
/* Flags: */
|
|
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING | OPTYPE_GRAB_CURSOR_X;
|
|
|
|
/* Properties: */
|
|
prop = RNA_def_float_factor(ot->srna,
|
|
"blend_factor",
|
|
0.0f,
|
|
-FLT_MAX,
|
|
FLT_MAX,
|
|
"Blend Factor",
|
|
"Amount that the pose is applied on top of the existing poses. A "
|
|
"negative value will subtract the pose instead of adding it",
|
|
-1.0f,
|
|
1.0f);
|
|
/* Blending should always start at 0%, and not at whatever percentage was last used. This RNA
|
|
* property just exists for symmetry with the Apply operator (and thus simplicity of the rest of
|
|
* the code, which can assume this property exists). */
|
|
RNA_def_property_flag(prop, PROP_SKIP_SAVE);
|
|
|
|
prop = RNA_def_boolean(ot->srna,
|
|
"flipped",
|
|
false,
|
|
"Apply Flipped",
|
|
"When enabled, applies the pose flipped over the X-axis");
|
|
RNA_def_property_flag(prop, PROP_SKIP_SAVE);
|
|
|
|
prop = RNA_def_boolean(ot->srna,
|
|
"release_confirm",
|
|
false,
|
|
"Confirm on Release",
|
|
"Always confirm operation when releasing button");
|
|
RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
|
|
}
|