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/*
* 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) 2009 Blender Foundation, Joshua Leung
* All rights reserved.
*/
#pragma once
/** \file
* \ingroup bke
*/
#include "DNA_curve_types.h"
#ifdef __cplusplus
extern "C" {
#endif
struct AnimationEvalContext;
struct ChannelDriver;
struct DriverTarget;
struct DriverVar;
struct FCurve;
struct PathResolvedRNA;
struct PointerRNA;
struct PropertyRNA;
/* ************** F-Curve Drivers ***************** */
/* With these iterators for convenience, the variables "tarIndex" and "dtar" can be
* accessed directly from the code using them, but it is not recommended that their
* values be changed to point at other slots...
*/
/* convenience looper over ALL driver targets for a given variable (even the unused ones) */
#define DRIVER_TARGETS_LOOPER_BEGIN(dvar) \
{ \
DriverTarget *dtar = &dvar->targets[0]; \
int tarIndex = 0; \
for (; tarIndex < MAX_DRIVER_TARGETS; tarIndex++, dtar++)
/* convenience looper over USED driver targets only */
#define DRIVER_TARGETS_USED_LOOPER_BEGIN(dvar) \
{ \
DriverTarget *dtar = &dvar->targets[0]; \
int tarIndex = 0; \
for (; tarIndex < dvar->num_targets; tarIndex++, dtar++)
/* tidy up for driver targets loopers */
#define DRIVER_TARGETS_LOOPER_END \
} \
((void)0)
/* ---------------------- */
void fcurve_free_driver(struct FCurve *fcu);
struct ChannelDriver *fcurve_copy_driver(const struct ChannelDriver *driver);
void driver_variables_copy(struct ListBase *dst_vars, const struct ListBase *src_vars);
void BKE_driver_target_matrix_to_rot_channels(
float mat[4][4], int auto_order, int rotation_mode, int channel, bool angles, float r_buf[4]);
void driver_free_variable(struct ListBase *variables, struct DriverVar *dvar);
void driver_free_variable_ex(struct ChannelDriver *driver, struct DriverVar *dvar);
void driver_change_variable_type(struct DriverVar *dvar, int type);
void driver_variable_name_validate(struct DriverVar *dvar);
struct DriverVar *driver_add_new_variable(struct ChannelDriver *driver);
float driver_get_variable_value(struct ChannelDriver *driver, struct DriverVar *dvar);
bool driver_get_variable_property(struct ChannelDriver *driver,
struct DriverTarget *dtar,
struct PointerRNA *r_ptr,
struct PropertyRNA **r_prop,
int *r_index);
bool BKE_driver_has_simple_expression(struct ChannelDriver *driver);
bool BKE_driver_expression_depends_on_time(struct ChannelDriver *driver);
void BKE_driver_invalidate_expression(struct ChannelDriver *driver,
bool expr_changed,
bool varname_changed);
float evaluate_driver(struct PathResolvedRNA *anim_rna,
struct ChannelDriver *driver,
struct ChannelDriver *driver_orig,
const struct AnimationEvalContext *anim_eval_context);
#ifdef __cplusplus
}
#endif
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