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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) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
/** \file
* \ingroup edtransform
*/
#pragma once
#include "ED_numinput.h"
#include "ED_transform.h"
#include "ED_view3d.h"
#include "RE_engine.h"
#include "DNA_listBase.h"
#include "DNA_object_enums.h"
#include "DEG_depsgraph.h"
#include "transform_data.h"
/* ************************** Types ***************************** */
struct ARegion;
struct Depsgraph;
struct NumInput;
struct Object;
struct RNG;
struct ReportList;
struct Scene;
struct ScrArea;
struct SnapObjectContext;
struct TransDataContainer;
struct TransInfo;
struct TransSnap;
struct TransformOrientation;
struct ViewLayer;
struct bContext;
struct wmEvent;
struct wmKeyConfig;
struct wmKeyMap;
struct wmTimer;
/* transinfo->redraw */
typedef enum {
TREDRAW_NOTHING = 0,
TREDRAW_HARD = 1,
TREDRAW_SOFT = 2,
} eRedrawFlag;
typedef struct TransSnapPoint {
struct TransSnapPoint *next, *prev;
float co[3];
} TransSnapPoint;
typedef struct TransSnap {
short mode;
short target;
short modePoint;
short modeSelect;
bool align;
bool project;
bool snap_self;
bool peel;
bool use_backface_culling;
char status;
/* Snapped Element Type (currently for objects only). */
char snapElem;
/** snapping from this point (in global-space). */
float snapPoint[3];
/** to this point (in global-space). */
float snapTarget[3];
float snapNormal[3];
char snapNodeBorder;
ListBase points;
TransSnapPoint *selectedPoint;
double last;
void (*applySnap)(struct TransInfo *, float *);
void (*calcSnap)(struct TransInfo *, float *);
void (*targetSnap)(struct TransInfo *);
/**
* Get the transform distance between two points (used by Closest snap)
*
* \note Return value can be anything,
* where the smallest absolute value defines what's closest.
*/
float (*distance)(struct TransInfo *t, const float p1[3], const float p2[3]);
/**
* Re-usable snap context data.
*/
struct SnapObjectContext *object_context;
} TransSnap;
typedef struct TransCon {
/** Description of the constraint for header_print. */
char text[50];
/** Projection constraint matrix (same as #imtx with some axis == 0). */
float pmtx[3][3];
/** Initial mouse value for visual calculation
* the one in #TransInfo is not guarantee to stay the same (Rotates change it). */
int imval[2];
/** Mode flags of the constraint. */
int mode;
void (*drawExtra)(struct TransInfo *t);
/* Note: if 'tc' is NULL, 'td' must also be NULL.
* For constraints that needs to draw differently from the other
* uses this instead of the generic draw function. */
/** Apply function pointer for linear vectorial transformation
* The last three parameters are pointers to the in/out/printable vectors. */
void (*applyVec)(struct TransInfo *t,
struct TransDataContainer *tc,
struct TransData *td,
const float in[3],
float out[3]);
/** Apply function pointer for size transformation. */
void (*applySize)(struct TransInfo *t,
struct TransDataContainer *tc,
struct TransData *td,
float smat[3][3]);
/** Apply function pointer for rotation transformation */
void (*applyRot)(struct TransInfo *t,
struct TransDataContainer *tc,
struct TransData *td,
float vec[3],
float *angle);
} TransCon;
typedef struct MouseInput {
void (*apply)(struct TransInfo *t, struct MouseInput *mi, const double mval[2], float output[3]);
void (*post)(struct TransInfo *t, float values[3]);
/** Initial mouse position. */
int imval[2];
bool precision;
float precision_factor;
float center[2];
float factor;
/** Additional data, if needed by the particular function. */
void *data;
/**
* Use virtual cursor, which takes precision into account
* keeping track of the cursors 'virtual' location,
* to avoid jumping values when its toggled.
*
* This works well for scaling drag motion,
* but not for rotating around a point (rotation needs its own custom accumulator)
*/
bool use_virtual_mval;
struct {
double prev[2];
double accum[2];
} virtual_mval;
} MouseInput;
typedef struct TransCustomData {
void *data;
void (*free_cb)(struct TransInfo *,
struct TransDataContainer *tc,
struct TransCustomData *custom_data);
unsigned int use_free : 1;
} TransCustomData;
typedef struct TransCenterData {
float global[3];
unsigned int is_set : 1;
} TransCenterData;
/**
* Rule of thumb for choosing between mode/type:
* - If transform mode uses the data, assign to `mode`
* (typically in transform.c).
* - If conversion uses the data as an extension to the #TransData, assign to `type`
* (typically in transform_conversion.c).
*/
typedef struct TransCustomDataContainer {
/** Owned by the mode (grab, scale, bend... ).*/
union {
TransCustomData mode, first_elem;
};
TransCustomData type;
} TransCustomDataContainer;
#define TRANS_CUSTOM_DATA_ELEM_MAX (sizeof(TransCustomDataContainer) / sizeof(TransCustomData))
typedef struct TransDataContainer {
/** Transformed data (array). */
TransData *data;
/** Transformed data extension (array). */
TransDataExtension *data_ext;
/** Transformed data for 2d (array). */
TransData2D *data_2d;
/** Transformed data for mirror elements (array). */
TransDataMirror *data_mirror;
/** Total number of transformed data, data_ext, data_2d. */
int data_len;
/** Total number of transformed data_mirror. */
int data_mirror_len;
struct Object *obedit;
float mat[4][4];
float imat[4][4];
/** 3x3 copies of matrices above. */
float mat3[3][3];
float imat3[3][3];
/** Normalized 'mat3' */
float mat3_unit[3][3];
/** if 't->flag & T_POSE', this denotes pose object */
struct Object *poseobj;
/** Center of transformation (in local-space), Calculated from #TransInfo.center_global. */
float center_local[3];
/**
* Use for cases we care about the active, eg: active vert of active mesh.
* if set this will _always_ be the first item in the array.
*/
bool is_active;
/**
* Store matrix, this avoids having to have duplicate check all over
* Typically: 'obedit->obmat' or 'poseobj->obmat', but may be used elsewhere too.
*/
bool use_local_mat;
/** Mirror option. */
union {
struct {
uint use_mirror_axis_x : 1;
uint use_mirror_axis_y : 1;
uint use_mirror_axis_z : 1;
};
/* For easy checking. */
char use_mirror_axis_any;
};
TransCustomDataContainer custom;
} TransDataContainer;
typedef struct TransInfo {
TransDataContainer *data_container;
int data_container_len;
/** eTransConvertType
* TODO: It should be a member of TransDataContainer. */
int data_type;
/** Combine length of all #TransDataContainer.data_len
* Use to check if nothing is selected or if we have a single selection. */
int data_len_all;
/** Current mode. */
int mode;
/** Generic flags for special behaviors. */
int flag;
/** Special modifiers, by function, not key. */
int modifiers;
/** Current state (running, canceled. */
short state;
/** Current context/options for transform. */
int options;
void (*transform)(struct TransInfo *, const int[2]);
/** Transform function pointer. */
eRedrawFlag (*handleEvent)(struct TransInfo *, const struct wmEvent *);
/* event handler function pointer RETURN 1 if redraw is needed */
/** transformed constraint. */
TransCon con;
TransSnap tsnap;
/** numerical input. */
NumInput num;
/** mouse input. */
MouseInput mouse;
/** redraw flag. */
eRedrawFlag redraw;
/** proportional circle radius. */
float prop_size;
/** proportional falloff text. */
char proptext[20];
/**
* Spaces using non 1:1 aspect, (uv's, f-curve, movie-clip... etc)
* use for conversion and snapping.
*/
float aspect[3];
/** center of transformation (in global-space) */
float center_global[3];
/** center in screen coordinates. */
float center2d[2];
/* Lazy initialize center data for when we need other center values.
* V3D_AROUND_ACTIVE + 1 (static assert checks this) */
TransCenterData center_cache[5];
/** maximum index on the input vector. */
short idx_max;
/** Snapping Gears. */
float snap[2];
/** Spatial snapping gears(even when rotating, scaling... etc). */
float snap_spatial[2];
/** Mouse side of the current frame, 'L', 'R' or 'B' */
char frame_side;
/** copy from G.vd, prevents feedback. */
float viewmat[4][4];
/** and to make sure we don't have to. */
float viewinv[4][4];
/** access G.vd from other space types. */
float persmat[4][4];
float persinv[4][4];
short persp;
short around;
/** spacetype where transforming is. */
char spacetype;
/** Choice of custom cursor with or without a help line from the gizmo to the mouse position. */
char helpline;
/** Avoid looking inside TransDataContainer obedit. */
short obedit_type;
/** translation, to show for widget. */
float vec[3];
/** rot/rescale, to show for widget. */
float mat[3][3];
/** orientation matrix of the current space. */
float spacemtx[3][3];
float spacemtx_inv[3][3];
/** name of the current space, MAX_NAME. */
char spacename[64];
/*************** NEW STUFF *********************/
/** event type used to launch transform. */
short launch_event;
/** Is the actual launch event a tweak event? (launch_event above is set to the corresponding
* mouse button then.) */
bool is_launch_event_tweak;
struct {
short type;
float matrix[3][3];
} orient[3];
short orient_curr;
/** backup from view3d, to restore on end. */
short gizmo_flag;
short prop_mode;
/** Value taken as input, either through mouse coordinates or entered as a parameter. */
float values[4];
/** Offset applied ontop of modal input. */
float values_modal_offset[4];
/** Final value of the transformation (displayed in the redo panel).
* If the operator is executed directly (not modal), this value is usually the
* value of the input parameter, except when a constrain is entered. */
float values_final[4];
/* Axis members for modes that use an axis separate from the orientation (rotate & shear). */
/** Primary axis, rotate only uses this. */
int orient_axis;
/** Secondary axis, shear uses this. */
int orient_axis_ortho;
/** remove elements if operator is canceled. */
bool remove_on_cancel;
void *view;
/** Only valid (non null) during an operator called function. */
struct bContext *context;
struct wmMsgBus *mbus;
struct ScrArea *area;
struct ARegion *region;
struct Depsgraph *depsgraph;
struct Scene *scene;
struct ViewLayer *view_layer;
struct ToolSettings *settings;
struct wmTimer *animtimer;
/** so we can do lookups for header text. */
struct wmKeyMap *keymap;
/** assign from the operator, or can be NULL. */
struct ReportList *reports;
/** current mouse position. */
int mval[2];
/** use for 3d view. */
float zfac;
void *draw_handle_apply;
void *draw_handle_view;
void *draw_handle_pixel;
void *draw_handle_cursor;
/** Currently only used for random curve of proportional editing. */
struct RNG *rng;
/** Typically for mode settings. */
TransCustomDataContainer custom;
} TransInfo;
/* ******************** Macros & Prototypes *********************** */
/* transinfo->state */
enum {
TRANS_STARTING = 0,
TRANS_RUNNING = 1,
TRANS_CONFIRM = 2,
TRANS_CANCEL = 3,
};
/* transinfo->flag */
enum {
T_OBJECT = 1 << 0,
/** \note We could remove 'T_EDIT' and use 'obedit_type', for now ensure they're in sync. */
T_EDIT = 1 << 1,
T_POSE = 1 << 2,
T_TEXTURE = 1 << 3,
/** Transforming the 3d view. */
T_CAMERA = 1 << 4,
/** Transforming the 3D cursor. */
T_CURSOR = 1 << 5,
/** Transform points, having no rotation/scale. */
T_POINTS = 1 << 6,
/** restrictions flags */
T_NO_CONSTRAINT = 1 << 7,
T_NULL_ONE = 1 << 8,
T_NO_ZERO = 1 << 9,
T_ALL_RESTRICTIONS = T_NO_CONSTRAINT | T_NULL_ONE | T_NO_ZERO,
T_PROP_EDIT = 1 << 10,
T_PROP_CONNECTED = 1 << 11,
T_PROP_PROJECTED = 1 << 12,
T_PROP_EDIT_ALL = T_PROP_EDIT | T_PROP_CONNECTED | T_PROP_PROJECTED,
T_V3D_ALIGN = 1 << 13,
/** For 2d views like uv or fcurve. */
T_2D_EDIT = 1 << 14,
T_CLIP_UV = 1 << 15,
/** Auto-ik is on. */
T_AUTOIK = 1 << 16,
/** Don't use mirror even if the data-block option is set. */
T_NO_MIRROR = 1 << 17,
/** To indicate that the value set in the `value` parameter is the final
* value of the transformation, modified only by the constrain. */
T_INPUT_IS_VALUES_FINAL = 1 << 18,
/** To specify if we save back settings at the end. */
T_MODAL = 1 << 19,
/** No retopo. */
T_NO_PROJECT = 1 << 20,
T_RELEASE_CONFIRM = 1 << 21,
/** Alternative transformation. used to add offset to tracking markers. */
T_ALT_TRANSFORM = 1 << 22,
/** #TransInfo.center has been set, don't change it. */
T_OVERRIDE_CENTER = 1 << 23,
T_MODAL_CURSOR_SET = 1 << 24,
T_CLNOR_REBUILD = 1 << 25,
/* Special Aftertrans. */
T_AUTOMERGE = 1 << 26,
T_AUTOSPLIT = 1 << 27,
};
/** #TransInfo.modifiers */
enum {
MOD_CONSTRAINT_SELECT = 1 << 0,
MOD_PRECISION = 1 << 1,
MOD_SNAP = 1 << 2,
MOD_SNAP_INVERT = 1 << 3,
MOD_CONSTRAINT_PLANE = 1 << 4,
};
/* use node center for transform instead of upper-left corner.
* disabled since it makes absolute snapping not work so nicely
*/
// #define USE_NODE_CENTER
/* ******************************************************************************** */
/** #TransInfo.helpline */
enum {
HLP_NONE = 0,
HLP_SPRING = 1,
HLP_ANGLE = 2,
HLP_HARROW = 3,
HLP_VARROW = 4,
HLP_CARROW = 5,
HLP_TRACKBALL = 6,
};
/** #TransCon.mode, #TransInfo.con.mode */
enum {
/** When set constraints are in use. */
CON_APPLY = 1 << 0,
/** These are only used for modal execution. */
CON_AXIS0 = 1 << 1,
CON_AXIS1 = 1 << 2,
CON_AXIS2 = 1 << 3,
CON_SELECT = 1 << 4,
/** Does not reorient vector to face viewport when on. */
CON_NOFLIP = 1 << 5,
CON_USER = 1 << 6,
};
/** #TransSnap.status */
enum {
SNAP_FORCED = 1 << 0,
TARGET_INIT = 1 << 1,
POINT_INIT = 1 << 2,
MULTI_POINTS = 1 << 3,
};
/** keymap modal items */
/* NOTE: these values are saved in keymap files, do not change then but just add new ones. */
enum {
TFM_MODAL_CANCEL = 1,
TFM_MODAL_CONFIRM = 2,
TFM_MODAL_TRANSLATE = 3,
TFM_MODAL_ROTATE = 4,
TFM_MODAL_RESIZE = 5,
TFM_MODAL_SNAP_INV_ON = 6,
TFM_MODAL_SNAP_INV_OFF = 7,
TFM_MODAL_SNAP_TOGGLE = 8,
TFM_MODAL_AXIS_X = 9,
TFM_MODAL_AXIS_Y = 10,
TFM_MODAL_AXIS_Z = 11,
TFM_MODAL_PLANE_X = 12,
TFM_MODAL_PLANE_Y = 13,
TFM_MODAL_PLANE_Z = 14,
TFM_MODAL_CONS_OFF = 15,
TFM_MODAL_ADD_SNAP = 16,
TFM_MODAL_REMOVE_SNAP = 17,
/* 18 and 19 used by numinput, defined in transform.h */
TFM_MODAL_PROPSIZE_UP = 20,
TFM_MODAL_PROPSIZE_DOWN = 21,
TFM_MODAL_AUTOIK_LEN_INC = 22,
TFM_MODAL_AUTOIK_LEN_DEC = 23,
TFM_MODAL_EDGESLIDE_UP = 24,
TFM_MODAL_EDGESLIDE_DOWN = 25,
/* for analog input, like trackpad */
TFM_MODAL_PROPSIZE = 26,
/* node editor insert offset (aka auto-offset) direction toggle */
TFM_MODAL_INSERTOFS_TOGGLE_DIR = 27,
TFM_MODAL_AUTOCONSTRAINT = 28,
TFM_MODAL_AUTOCONSTRAINTPLANE = 29,
};
bool initTransform(struct bContext *C,
struct TransInfo *t,
struct wmOperator *op,
const struct wmEvent *event,
int mode);
void saveTransform(struct bContext *C, struct TransInfo *t, struct wmOperator *op);
int transformEvent(TransInfo *t, const struct wmEvent *event);
void transformApply(struct bContext *C, TransInfo *t);
int transformEnd(struct bContext *C, TransInfo *t);
void setTransformViewMatrices(TransInfo *t);
void setTransformViewAspect(TransInfo *t, float r_aspect[3]);
void convertViewVec(TransInfo *t, float r_vec[3], double dx, double dy);
void projectIntViewEx(TransInfo *t, const float vec[3], int adr[2], const eV3DProjTest flag);
void projectIntView(TransInfo *t, const float vec[3], int adr[2]);
void projectFloatViewEx(TransInfo *t, const float vec[3], float adr[2], const eV3DProjTest flag);
void projectFloatView(TransInfo *t, const float vec[3], float adr[2]);
void applyAspectRatio(TransInfo *t, float vec[2]);
void removeAspectRatio(TransInfo *t, float vec[2]);
struct wmKeyMap *transform_modal_keymap(struct wmKeyConfig *keyconf);
/*********************** transform_gizmo.c ********** */
#define GIZMO_AXIS_LINE_WIDTH 2.0f
/* return 0 when no gimbal for selection */
bool gimbal_axis(struct Object *ob, float gmat[3][3]);
void drawDial3d(const TransInfo *t);
/*********************** TransData Creation and General Handling *********** */
bool transdata_check_local_islands(TransInfo *t, short around);
/********************** Mouse Input ******************************/
typedef enum {
INPUT_NONE,
INPUT_VECTOR,
INPUT_SPRING,
INPUT_SPRING_FLIP,
INPUT_SPRING_DELTA,
INPUT_ANGLE,
INPUT_ANGLE_SPRING,
INPUT_TRACKBALL,
INPUT_HORIZONTAL_RATIO,
INPUT_HORIZONTAL_ABSOLUTE,
INPUT_VERTICAL_RATIO,
INPUT_VERTICAL_ABSOLUTE,
INPUT_CUSTOM_RATIO,
INPUT_CUSTOM_RATIO_FLIP,
} MouseInputMode;
void initMouseInput(
TransInfo *t, MouseInput *mi, const float center[2], const int mval[2], const bool precision);
void initMouseInputMode(TransInfo *t, MouseInput *mi, MouseInputMode mode);
eRedrawFlag handleMouseInput(struct TransInfo *t,
struct MouseInput *mi,
const struct wmEvent *event);
void applyMouseInput(struct TransInfo *t,
struct MouseInput *mi,
const int mval[2],
float output[3]);
void setCustomPoints(TransInfo *t, MouseInput *mi, const int start[2], const int end[2]);
void setCustomPointsFromDirection(TransInfo *t, MouseInput *mi, const float dir[2]);
void setInputPostFct(MouseInput *mi, void (*post)(struct TransInfo *t, float values[3]));
/*********************** Generics ********************************/
void initTransDataContainers_FromObjectData(TransInfo *t,
struct Object *obact,
struct Object **objects,
uint objects_len);
void initTransInfo(struct bContext *C,
TransInfo *t,
struct wmOperator *op,
const struct wmEvent *event);
void freeTransCustomDataForMode(TransInfo *t);
void postTrans(struct bContext *C, TransInfo *t);
void resetTransModal(TransInfo *t);
void resetTransRestrictions(TransInfo *t);
void drawLine(TransInfo *t, const float center[3], const float dir[3], char axis, short options);
/* DRAWLINE options flags */
#define DRAWLIGHT 1
void applyTransObjects(TransInfo *t);
void restoreTransObjects(TransInfo *t);
void recalcData(TransInfo *t);
void calculateCenter2D(TransInfo *t);
void calculateCenterLocal(TransInfo *t, const float center_global[3]);
const TransCenterData *transformCenter_from_type(TransInfo *t, int around);
void calculateCenter(TransInfo *t);
/* API functions for getting center points */
void calculateCenterBound(TransInfo *t, float r_center[3]);
void calculateCenterMedian(TransInfo *t, float r_center[3]);
void calculateCenterCursor(TransInfo *t, float r_center[3]);
void calculateCenterCursor2D(TransInfo *t, float r_center[2]);
void calculateCenterCursorGraph2D(TransInfo *t, float r_center[2]);
bool calculateCenterActive(TransInfo *t, bool select_only, float r_center[3]);
void calculatePropRatio(TransInfo *t);
void getViewVector(const TransInfo *t, const float coord[3], float vec[3]);
void transform_data_ext_rotate(TransData *td, float mat[3][3], bool use_drot);
void freeCustomNormalArray(TransInfo *t, TransDataContainer *tc, TransCustomData *custom_data);
/* TODO. transform_query.c */
bool checkUseAxisMatrix(TransInfo *t);
#define TRANSFORM_SNAP_MAX_PX 100.0f
#define TRANSFORM_DIST_INVALID -FLT_MAX
/* Temp macros. */
#define TRANS_DATA_CONTAINER_FIRST_OK(t) (&(t)->data_container[0])
/* For cases we _know_ there is only one handle. */
#define TRANS_DATA_CONTAINER_FIRST_SINGLE(t) \
(BLI_assert((t)->data_container_len == 1), (&(t)->data_container[0]))
#define FOREACH_TRANS_DATA_CONTAINER(t, th) \
for (TransDataContainer *tc = (t)->data_container, \
*tc_end = (t)->data_container + (t)->data_container_len; \
th != tc_end; \
th++)
#define FOREACH_TRANS_DATA_CONTAINER_INDEX(t, th, i) \
for (TransDataContainer *tc = ((i = 0), (t)->data_container), \
*tc_end = (t)->data_container + (t)->data_container_len; \
th != tc_end; \
th++, i++)
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