1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* 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
*/
#include "DNA_anim_types.h"
#include "BLI_math.h"
#include "BKE_context.h"
#include "BKE_nla.h"
#include "ED_markers.h"
#include "ED_screen.h"
#include "transform.h"
#include "transform_snap.h"
/* -------------------------------------------------------------------- */
/** \name Snapping in Anim Editors
* \{ */
short getAnimEdit_SnapMode(TransInfo *t)
{
short autosnap = SACTSNAP_OFF;
if (t->spacetype == SPACE_ACTION) {
SpaceAction *saction = (SpaceAction *)t->area->spacedata.first;
if (saction) {
autosnap = saction->autosnap;
}
}
else if (t->spacetype == SPACE_GRAPH) {
if ((t->mode == TFM_TRANSLATION) && activeSnap(t)) {
return autosnap;
}
SpaceGraph *sipo = (SpaceGraph *)t->area->spacedata.first;
if (sipo) {
autosnap = sipo->autosnap;
}
}
else if (t->spacetype == SPACE_NLA) {
SpaceNla *snla = (SpaceNla *)t->area->spacedata.first;
if (snla) {
autosnap = snla->autosnap;
}
}
else {
autosnap = SACTSNAP_OFF;
}
/* toggle autosnap on/off
* - when toggling on, prefer nearest frame over 1.0 frame increments
*/
if (t->modifiers & MOD_SNAP_INVERT) {
if (autosnap) {
autosnap = SACTSNAP_OFF;
}
else {
autosnap = SACTSNAP_FRAME;
}
}
return autosnap;
}
void snapFrameTransform(TransInfo *t,
const eAnimEdit_AutoSnap autosnap,
const float val_initial,
const float val_final,
float *r_val_final)
{
float deltax = val_final - val_initial;
switch (autosnap) {
case SACTSNAP_FRAME:
*r_val_final = floorf(val_final + 0.5f);
break;
case SACTSNAP_MARKER:
/* Snap to nearest marker. */
/* TODO: need some more careful checks for where data comes from. */
*r_val_final = (float)ED_markers_find_nearest_marker_time(&t->scene->markers, val_final);
break;
case SACTSNAP_SECOND:
case SACTSNAP_TSTEP: {
const Scene *scene = t->scene;
const double secf = FPS;
if (autosnap == SACTSNAP_SECOND) {
*r_val_final = floorf((val_final / secf) + 0.5) * secf;
}
else {
deltax = (float)(floor((deltax / secf) + 0.5) * secf);
*r_val_final = val_initial + deltax;
}
break;
}
case SACTSNAP_STEP:
deltax = floorf(deltax + 0.5f);
*r_val_final = val_initial + deltax;
break;
case SACTSNAP_OFF:
break;
}
}
void transform_snap_anim_flush_data(TransInfo *t,
TransData *td,
const eAnimEdit_AutoSnap autosnap,
float *r_val_final)
{
BLI_assert(autosnap != SACTSNAP_OFF);
float val = td->loc[0];
float ival = td->iloc[0];
AnimData *adt = (!ELEM(t->spacetype, SPACE_NLA, SPACE_SEQ)) ? td->extra : NULL;
/* Convert frame to nla-action time (if needed) */
if (adt) {
val = BKE_nla_tweakedit_remap(adt, val, NLATIME_CONVERT_MAP);
ival = BKE_nla_tweakedit_remap(adt, ival, NLATIME_CONVERT_MAP);
}
snapFrameTransform(t, autosnap, ival, val, &val);
/* Convert frame out of nla-action time. */
if (adt) {
val = BKE_nla_tweakedit_remap(adt, val, NLATIME_CONVERT_UNMAP);
}
*r_val_final = val;
}
/** \} */
|
