ED_anim_api.h

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/*
 * $Id: ED_anim_api.h 36312 2011-04-24 10:51:45Z campbellbarton $
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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) 2008 Blender Foundation.
 * All rights reserved.
 *
 * 
 * Contributor(s): Joshua Leung
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef ED_ANIM_API_H
#define ED_ANIM_API_H

struct ID;
struct ListBase;
struct AnimData;

struct bContext;
struct wmKeyConfig;
struct ReportList;
struct ScrArea;
struct ARegion;
struct View2D;

struct Scene;
struct Object;

struct bDopeSheet;

struct bActionGroup;
struct FCurve;
struct FModifier;

struct uiBlock;
struct uiLayout;

/* ************************************************ */
/* ANIMATION CHANNEL FILTERING */
/* anim_filter.c */

/* --------------- Context --------------------- */

/* This struct defines a structure used for animation-specific 
 * 'context' information
 */
typedef struct bAnimContext {
        void *data;                             /* data to be filtered for use in animation editor */
        short datatype;                 /* type of data eAnimCont_Types */
        
        short mode;                             /* editor->mode */
        short spacetype;                /* sa->spacetype */
        short regiontype;               /* active region -> type (channels or main) */
        struct ScrArea *sa;             /* editor */ 
        struct ARegion *ar;             /* region within editor */
        
        struct Scene *scene;    /* active scene */
        struct Object *obact;   /* active object */
        ListBase *markers;              /* active set of markers */
        
        struct ReportList *reports;     /* pointer to current reports list */
} bAnimContext;

/* Main Data container types */
// XXX was ACTCONT_*
typedef enum eAnimCont_Types {
        ANIMCONT_NONE = 0,              /* invalid or no data */
        ANIMCONT_ACTION,                /* action (bAction) */
        ANIMCONT_SHAPEKEY,              /* shapekey (Key) */
        ANIMCONT_GPENCIL,               /* grease pencil (screen) */
        ANIMCONT_DOPESHEET,             /* dopesheet (bDopesheet) */
        ANIMCONT_FCURVES,               /* animation F-Curves (bDopesheet) */
        ANIMCONT_DRIVERS,               /* drivers (bDopesheet) */
        ANIMCONT_NLA                    /* nla (bDopesheet) */
} eAnimCont_Types;

/* --------------- Channels -------------------- */

/* This struct defines a structure used for quick and uniform access for 
 * channels of animation data
 */
typedef struct bAnimListElem {
        struct bAnimListElem *next, *prev;
        
        void    *data;                  /* source data this elem represents */
        int     type;                   /* one of the ANIMTYPE_* values */
        int             flag;                   /* copy of elem's flags for quick access */
        int     index;                  /* for un-named data, the index of the data in it's collection */
        
        short   elemFlag;               /* flags for the list elem instance (not the data it represents) */
        
        short   datatype;               /* type of motion data to expect */
        void    *key_data;              /* motion data - mostly F-Curves, but can be other types too */
        
        
        struct ID *id;                  /* ID block that channel is attached to */
        struct AnimData *adt;   /* source of the animation data attached to ID block (for convenience) */
        
        void    *owner;                 /* group or channel which acts as this channel's owner */
        short   ownertype;              /* type of owner */
} bAnimListElem;


/* Some types for easier type-testing 
 * NOTE: need to keep the order of these synchronised with the channels define code
 *              which is used for drawing and handling channel lists for 
 */
// XXX was ACTTYPE_*
typedef enum eAnim_ChannelType {
        ANIMTYPE_NONE= 0,
        ANIMTYPE_ANIMDATA,
        ANIMTYPE_SPECIALDATA,
        
        ANIMTYPE_SUMMARY,
        
        ANIMTYPE_SCENE,
        ANIMTYPE_OBJECT,
        ANIMTYPE_GROUP,
        ANIMTYPE_FCURVE,
        
        ANIMTYPE_FILLACTD,
        ANIMTYPE_FILLDRIVERS,
        ANIMTYPE_FILLMATD,
        ANIMTYPE_FILLPARTD,
        ANIMTYPE_FILLTEXD,
        
        ANIMTYPE_DSMAT,
        ANIMTYPE_DSLAM,
        ANIMTYPE_DSCAM,
        ANIMTYPE_DSCUR,
        ANIMTYPE_DSSKEY,
        ANIMTYPE_DSWOR,
        ANIMTYPE_DSNTREE,
        ANIMTYPE_DSPART,
        ANIMTYPE_DSMBALL,
        ANIMTYPE_DSARM,
        ANIMTYPE_DSMESH,
        ANIMTYPE_DSTEX,
        ANIMTYPE_DSLAT,
        
        ANIMTYPE_SHAPEKEY,
        
        ANIMTYPE_GPDATABLOCK,
        ANIMTYPE_GPLAYER,
        
        ANIMTYPE_NLATRACK,
        ANIMTYPE_NLAACTION,
        
                /* always as last item, the total number of channel types... */
        ANIMTYPE_NUM_TYPES
} eAnim_ChannelType;

/* types of keyframe data in bAnimListElem */
typedef enum eAnim_KeyType {
        ALE_NONE = 0,           /* no keyframe data */
        ALE_FCURVE,                     /* F-Curve */
        ALE_GPFRAME,            /* Grease Pencil Frames */
        ALE_NLASTRIP,           /* NLA Strips */
        
        ALE_ALL,                        /* All channels summary */
        ALE_SCE,                        /* Scene summary */
        ALE_OB,                         /* Object summary */
        ALE_ACT,                        /* Action summary */
        ALE_GROUP                       /* Action Group summary */
} eAnim_KeyType;

/* ----------------- Filtering -------------------- */

/* filtering flags  - under what circumstances should a channel be added */
// XXX was ACTFILTER_*
typedef enum eAnimFilter_Flags {
        ANIMFILTER_VISIBLE              = (1<<0),       /* should channels be visible (in terms of hierarchy only) */
        ANIMFILTER_SEL                  = (1<<1),       /* should channels be selected */
        ANIMFILTER_UNSEL                = (1<<2),       /* should channels be NOT selected */
        ANIMFILTER_FOREDIT              = (1<<3),       /* does editable status matter */
        ANIMFILTER_CURVESONLY   = (1<<4),       /* don't include summary-channels, etc. */
        ANIMFILTER_CHANNELS             = (1<<5),       /* make list for interface drawing */
        ANIMFILTER_ACTGROUPED   = (1<<6),       /* belongs to the active actiongroup */
        ANIMFILTER_CURVEVISIBLE = (1<<7),       /* F-Curve is visible for editing/viewing in Graph Editor */
        ANIMFILTER_ACTIVE               = (1<<8),       /* channel should be 'active' */
        ANIMFILTER_ANIMDATA             = (1<<9),       /* only return the underlying AnimData blocks (not the tracks, etc.) data comes from */
        ANIMFILTER_NLATRACKS    = (1<<10),      /* only include NLA-tracks */
        ANIMFILTER_SELEDIT              = (1<<11),      /* link editability with selected status */
        ANIMFILTER_NODUPLIS             = (1<<12),      /* duplicate entries for animation data attached to multi-user blocks must not occur */
        
        /* all filters - the power inside the bracket must be the last power for left-shifts + 1 */
        ANIMFILTER_ALLFILTERS   = ((1<<12) - 1)
} eAnimFilter_Flags;


/* ---------- Flag Checking Macros ------------ */
// xxx check on all of these flags again...

/* Dopesheet only */
        /* 'Scene' channels */
#define SEL_SCEC(sce) ((sce->flag & SCE_DS_SELECTED))
#define EXPANDED_SCEC(sce) ((sce->flag & SCE_DS_COLLAPSED)==0)
        /* 'Sub-Scene' channels (flags stored in Data block) */
#define FILTER_WOR_SCED(wo) ((wo->flag & WO_DS_EXPAND))
#define FILTER_NTREE_SCED(ntree) ((ntree->flag & NTREE_DS_EXPAND))
        /* 'Object' channels */
#define SEL_OBJC(base) ((base->flag & SELECT))
#define EXPANDED_OBJC(ob) ((ob->nlaflag & OB_ADS_COLLAPSED)==0)
        /* 'Sub-object' channels (flags stored in Object block) */
#define FILTER_MAT_OBJC(ob) ((ob->nlaflag & OB_ADS_SHOWMATS))
#define FILTER_PART_OBJC(ob) ((ob->nlaflag & OB_ADS_SHOWPARTS))
        /* 'Sub-object' channels (flags stored in Data block) */
#define FILTER_SKE_OBJD(key) ((key->flag & KEY_DS_EXPAND))
#define FILTER_MAT_OBJD(ma) ((ma->flag & MA_DS_EXPAND))
#define FILTER_LAM_OBJD(la) ((la->flag & LA_DS_EXPAND))
#define FILTER_CAM_OBJD(ca) ((ca->flag & CAM_DS_EXPAND))
#define FILTER_CUR_OBJD(cu) ((cu->flag & CU_DS_EXPAND))
#define FILTER_PART_OBJD(part) ((part->flag & PART_DS_EXPAND))
#define FILTER_MBALL_OBJD(mb) ((mb->flag2 & MB_DS_EXPAND))
#define FILTER_ARM_OBJD(arm) ((arm->flag & ARM_DS_EXPAND))
#define FILTER_MESH_OBJD(me) ((me->flag & ME_DS_EXPAND))
#define FILTER_LATTICE_OBJD(lt) ((lt->flag & LT_DS_EXPAND))

        /* 'Sub-object/Action' channels (flags stored in Action) */
#define SEL_ACTC(actc) ((actc->flag & ACT_SELECTED))
#define EXPANDED_ACTC(actc) ((actc->flag & ACT_COLLAPSED)==0)
        /* 'Sub-AnimData' channels */
#define EXPANDED_DRVD(adt) ((adt->flag & ADT_DRIVERS_COLLAPSED)==0)
        /* Texture expanders */
#define FILTER_TEX_MATC(ma) ((ma->flag & MA_DS_SHOW_TEXS))
#define FILTER_TEX_LAMC(la) ((la->flag & LA_DS_SHOW_TEXS))
#define FILTER_TEX_WORC(wa) ((wo->flag & WO_DS_SHOW_TEXS))
#define FILTER_TEX_DATA(tex) ((tex->flag & TEX_DS_EXPAND))

/* Actions (also used for Dopesheet) */
        /* Action Channel Group */
#define EDITABLE_AGRP(agrp) ((agrp->flag & AGRP_PROTECTED)==0)
#define EXPANDED_AGRP(ac, agrp) \
        ( ( ((ac)->spacetype == SPACE_IPO) && (agrp->flag & AGRP_EXPANDED_G) ) || \
          ( ((ac)->spacetype != SPACE_IPO) && (agrp->flag & AGRP_EXPANDED)   ) )
#define SEL_AGRP(agrp) ((agrp->flag & AGRP_SELECTED) || (agrp->flag & AGRP_ACTIVE))
        /* F-Curve Channels */
#define EDITABLE_FCU(fcu) ((fcu->flag & FCURVE_PROTECTED)==0)
#define SEL_FCU(fcu) (fcu->flag & (FCURVE_ACTIVE|FCURVE_SELECTED))

/* ShapeKey mode only */
#define EDITABLE_SHAPEKEY(kb) ((kb->flag & KEYBLOCK_LOCKED)==0)
#define SEL_SHAPEKEY(kb) (kb->flag & KEYBLOCK_SEL)

/* Grease Pencil only */
        /* Grease Pencil datablock settings */
#define EXPANDED_GPD(gpd) (gpd->flag & GP_DATA_EXPAND) 
        /* Grease Pencil Layer settings */
#define EDITABLE_GPL(gpl) ((gpl->flag & GP_LAYER_LOCKED)==0)
#define SEL_GPL(gpl) ((gpl->flag & GP_LAYER_ACTIVE) || (gpl->flag & GP_LAYER_SELECT))

/* NLA only */
#define SEL_NLT(nlt) (nlt->flag & NLATRACK_SELECTED)
#define EDITABLE_NLT(nlt) ((nlt->flag & NLATRACK_PROTECTED)==0)

/* -------------- Channel Defines -------------- */

/* channel heights */
#define ACHANNEL_FIRST                  -16
#define ACHANNEL_HEIGHT                 16
#define ACHANNEL_HEIGHT_HALF    8
#define ACHANNEL_SKIP                   2
#define ACHANNEL_STEP                   (ACHANNEL_HEIGHT + ACHANNEL_SKIP)

/* channel widths */
#define ACHANNEL_NAMEWIDTH              200

/* channel toggle-buttons */
#define ACHANNEL_BUTTON_WIDTH   16


/* -------------- NLA Channel Defines -------------- */

/* NLA channel heights */
#define NLACHANNEL_FIRST                        -16
#define NLACHANNEL_HEIGHT                       24
#define NLACHANNEL_HEIGHT_HALF  12
#define NLACHANNEL_SKIP                 2
#define NLACHANNEL_STEP                 (NLACHANNEL_HEIGHT + NLACHANNEL_SKIP)

/* channel widths */
#define NLACHANNEL_NAMEWIDTH            200

/* channel toggle-buttons */
#define NLACHANNEL_BUTTON_WIDTH 16

/* ---------------- API  -------------------- */

/* Obtain list of filtered Animation channels to operate on.
 * Returns the number of channels in the list
 */
int ANIM_animdata_filter(bAnimContext *ac, ListBase *anim_data, int filter_mode, void *data, short datatype);

/* Obtain current anim-data context from Blender Context info.
 * Returns whether the operation was successful. 
 */
short ANIM_animdata_get_context(const struct bContext *C, bAnimContext *ac);

/* Obtain current anim-data context (from Animation Editor) given 
 * that Blender Context info has already been set. 
 * Returns whether the operation was successful.
 */
short ANIM_animdata_context_getdata(bAnimContext *ac);

/* ************************************************ */
/* ANIMATION CHANNELS LIST */
/* anim_channels_*.c */

/* ------------------------ Drawing TypeInfo -------------------------- */

/* flag-setting behaviour */
typedef enum eAnimChannels_SetFlag {
        ACHANNEL_SETFLAG_CLEAR = 0,             /* turn off */
        ACHANNEL_SETFLAG_ADD,                   /* turn on */
        ACHANNEL_SETFLAG_INVERT,                /* on->off, off->on */
        ACHANNEL_SETFLAG_TOGGLE                 /* some on -> all off // all on */
} eAnimChannels_SetFlag;

/* types of settings for AnimChannels */
typedef enum eAnimChannel_Settings {
        ACHANNEL_SETTING_SELECT = 0,
        ACHANNEL_SETTING_PROTECT,                       // warning: for drawing UI's, need to check if this is off (maybe inverse this later)
        ACHANNEL_SETTING_MUTE,
        ACHANNEL_SETTING_EXPAND,
        ACHANNEL_SETTING_VISIBLE,                       /* only for Graph Editor */
        ACHANNEL_SETTING_SOLO                           /* only for NLA Tracks */
} eAnimChannel_Settings;


/* Drawing, mouse handling, and flag setting behaviour... */
typedef struct bAnimChannelType {
        /* type data */
                /* name of the channel type, for debugging */
        const char *channel_type_name;
        
        /* drawing */
                /* get RGB color that is used to draw the majority of the backdrop */
        void (*get_backdrop_color)(bAnimContext *ac, bAnimListElem *ale, float *color);
                /* draw backdrop strip for channel */
        void (*draw_backdrop)(bAnimContext *ac, bAnimListElem *ale, float yminc, float ymaxc);
                /* get depth of indention (relative to the depth channel is nested at) */
        short (*get_indent_level)(bAnimContext *ac, bAnimListElem *ale);
                /* get offset in pixels for the start of the channel (in addition to the indent depth) */
        short (*get_offset)(bAnimContext *ac, bAnimListElem *ale);
        
        /* get name (for channel lists) */
        void (*name)(bAnimListElem *ale, char *name);
        /* get icon (for channel lists) */
        int (*icon)(bAnimListElem *ale);
        
        /* settings */
                /* check if the given setting is valid in the current context */
        short (*has_setting)(bAnimContext *ac, bAnimListElem *ale, int setting);
                /* get the flag used for this setting */
        int (*setting_flag)(bAnimContext *ac, int setting, short *neg);
                /* get the pointer to int/short where data is stored, 
                 * with type being  sizeof(ptr_data) which should be fine for runtime use...
                 *      - assume that setting has been checked to be valid for current context
                 */
        void *(*setting_ptr)(bAnimListElem *ale, int setting, short *type);
} bAnimChannelType;

/* ------------------------ Drawing API -------------------------- */

/* Get typeinfo for the given channel */
bAnimChannelType *ANIM_channel_get_typeinfo(bAnimListElem *ale);

/* Print debugging info about a given channel */
void ANIM_channel_debug_print_info(bAnimListElem *ale, short indent_level);

/* Draw the given channel */
void ANIM_channel_draw(bAnimContext *ac, bAnimListElem *ale, float yminc, float ymaxc);
/* Draw the widgets for the given channel */
void ANIM_channel_draw_widgets(bAnimContext *ac, bAnimListElem *ale, struct uiBlock *block, float yminc, float ymaxc);


/* ------------------------ Editing API -------------------------- */

/* Check if some setting for a channel is enabled 
 * Returns: 1 = On, 0 = Off, -1 = Invalid
 *
 *      - setting: eAnimChannel_Settings
 */
short ANIM_channel_setting_get(bAnimContext *ac, bAnimListElem *ale, int setting);

/* Change value of some setting for a channel 
 *      - setting: eAnimChannel_Settings
 *      - mode: eAnimChannels_SetFlag
 */
void ANIM_channel_setting_set(bAnimContext *ac, bAnimListElem *ale, int setting, short mode);


/* Flush visibility (for Graph Editor) changes up/down hierarchy for changes in the given setting 
 *      - anim_data: list of the all the anim channels that can be chosen
 *              -> filtered using ANIMFILTER_CHANNELS only, since if we took VISIBLE too,
 *                then the channels under closed expanders get ignored...
 *      - ale_setting: the anim channel (not in the anim_data list directly, though occuring there)
 *              with the new state of the setting that we want flushed up/down the hierarchy 
 *      - setting: type of setting to set
 *      - on: whether the visibility setting has been enabled or disabled 
 */
void ANIM_flush_setting_anim_channels(bAnimContext *ac, ListBase *anim_data, bAnimListElem *ale_setting, int setting, short on);


/* Deselect all animation channels */
void ANIM_deselect_anim_channels(bAnimContext *ac, void *data, short datatype, short test, short sel);

/* Set the 'active' channel of type channel_type, in the given action */
void ANIM_set_active_channel(bAnimContext *ac, void *data, short datatype, int filter, void *channel_data, short channel_type);


/* Delete the F-Curve from the given AnimData block (if possible), as appropriate according to animation context */
void ANIM_fcurve_delete_from_animdata(bAnimContext *ac, struct AnimData *adt, struct FCurve *fcu);

/* ************************************************ */
/* DRAWING API */
/* anim_draw.c */

/* Get string representing the given frame number as an appropriately represented frame or timecode */
void ANIM_timecode_string_from_frame(char *str, struct Scene *scene, int power, short timecodes, float cfra);

/* ---------- Current Frame Drawing ---------------- */

/* flags for Current Frame Drawing */
enum {
                /* plain time indicator with no special indicators */
        DRAWCFRA_PLAIN                  = 0,
                /* draw box indicating current frame number */
        DRAWCFRA_SHOW_NUMBOX    = (1<<0),
                /* time indication in seconds or frames */
        DRAWCFRA_UNIT_SECONDS   = (1<<1),
                /* show time-offset line */
        DRAWCFRA_SHOW_TIMEOFS   = (1<<2)
} eAnimEditDraw_CurrentFrame; 

/* main call to draw current-frame indicator in an Animation Editor */
void ANIM_draw_cfra(const struct bContext *C, struct View2D *v2d, short flag);

/* ------------- Preview Range Drawing -------------- */

/* main call to draw preview range curtains */
void ANIM_draw_previewrange(const struct bContext *C, struct View2D *v2d);

/* ************************************************* */
/* F-MODIFIER TOOLS */

/* ------------- UI Panel Drawing -------------- */

/* draw a given F-Modifier for some layout/UI-Block */
void ANIM_uiTemplate_fmodifier_draw(struct uiLayout *layout, struct ID *id, ListBase *modifiers, struct FModifier *fcm);

/* ------------- Copy/Paste Buffer -------------- */


/* free the copy/paste buffer */
void free_fmodifiers_copybuf(void);

/* copy the given F-Modifiers to the buffer, returning whether anything was copied or not
 * assuming that the buffer has been cleared already with free_fmodifiers_copybuf()
 *      - active: only copy the active modifier
 */
short ANIM_fmodifiers_copy_to_buf(ListBase *modifiers, short active);

/* 'Paste' the F-Modifier(s) from the buffer to the specified list 
 *      - replace: free all the existing modifiers to leave only the pasted ones 
 */
short ANIM_fmodifiers_paste_from_buf(ListBase *modifiers, short replace);

/* ************************************************* */
/* ASSORTED TOOLS */

/* ------------ Animation F-Curves <-> Icons/Names Mapping ------------ */
/* anim_ipo_utils.c */

/* Get icon + name for channel-list displays for F-Curve */
int getname_anim_fcurve(char *name, struct ID *id, struct FCurve *fcu);

/* Automatically determine a color for the nth F-Curve */
void getcolor_fcurve_rainbow(int cur, int tot, float *out);

/* ----------------- NLA-Mapping ----------------------- */
/* anim_draw.c */

/* Obtain the AnimData block providing NLA-scaling for the given channel if applicable */
struct AnimData *ANIM_nla_mapping_get(bAnimContext *ac, bAnimListElem *ale);

/* Apply/Unapply NLA mapping to all keyframes in the nominated F-Curve */
void ANIM_nla_mapping_apply_fcurve(struct AnimData *adt, struct FCurve *fcu, short restore, short only_keys);

/* ..... */

/* Perform auto-blending/extend refreshes after some operations */
// NOTE: defined in space_nla/nla_edit.c, not in animation/
void ED_nla_postop_refresh(bAnimContext *ac);

/* ------------- Unit Conversion Mappings ------------- */
/* anim_draw.c */

/* flags for conversion mapping */
typedef enum eAnimUnitConv_Flags {
                /* restore to original internal values */
        ANIM_UNITCONV_RESTORE   = (1<<0),
                /* ignore handles (i.e. only touch main keyframes) */
        ANIM_UNITCONV_ONLYKEYS  = (1<<1),
                /* only touch selected BezTriples */
        ANIM_UNITCONV_ONLYSEL   = (1<<2),
                /* only touch selected vertices */
        ANIM_UNITCONV_SELVERTS  = (1<<3)
} eAnimUnitConv_Flags;

/* Get unit conversion factor for given ID + F-Curve */
float ANIM_unit_mapping_get_factor(struct Scene *scene, struct ID *id, struct FCurve *fcu, short restore);

/* Apply/Unapply units conversions to keyframes */
void ANIM_unit_mapping_apply_fcurve(struct Scene *scene, struct ID *id, struct FCurve *fcu, short flag);

/* ------------- Utility macros ----------------------- */

/* provide access to Keyframe Type info in BezTriple
 * NOTE: this is so that we can change it from being stored in 'hide'
 */
#define BEZKEYTYPE(bezt) ((bezt)->hide)

/* set/clear/toggle macro 
 *      - channel - channel with a 'flag' member that we're setting
 *      - smode - 0=clear, 1=set, 2=invert
 *      - sflag - bitflag to set
 */
#define ACHANNEL_SET_FLAG(channel, smode, sflag) \
        { \
                if (smode == ACHANNEL_SETFLAG_INVERT)   (channel)->flag ^= (sflag); \
                else if (smode == ACHANNEL_SETFLAG_ADD) (channel)->flag |= (sflag); \
                else                                                                    (channel)->flag &= ~(sflag); \
        }
        
/* set/clear/toggle macro, where the flag is negative 
 *      - channel - channel with a 'flag' member that we're setting
 *      - smode - 0=clear, 1=set, 2=invert
 *      - sflag - bitflag to set
 */
#define ACHANNEL_SET_FLAG_NEG(channel, smode, sflag) \
        { \
                if (smode == ACHANNEL_SETFLAG_INVERT)   (channel)->flag ^= (sflag); \
                else if (smode == ACHANNEL_SETFLAG_ADD) (channel)->flag &= ~(sflag); \
                else                                                                    (channel)->flag |= (sflag); \
        }


/* --------- anim_deps.c, animation updates -------- */

void ANIM_id_update(struct Scene *scene, struct ID *id);
void ANIM_list_elem_update(struct Scene *scene, bAnimListElem *ale);

/* data -> channels syncing */
void ANIM_sync_animchannels_to_data(const struct bContext *C);

/* ************************************************* */
/* OPERATORS */
        
        /* generic animation channels */
void ED_operatortypes_animchannels(void);
void ED_keymap_animchannels(struct wmKeyConfig *keyconf);

        /* generic time editing */
void ED_operatortypes_anim(void);
void ED_keymap_anim(struct wmKeyConfig *keyconf);
        
        /* space_graph */
void ED_operatormacros_graph(void);
        /* space_action */
void ED_operatormacros_action(void);

/* ************************************************ */

#endif /* ED_ANIM_API_H */