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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
|
/*
* ***** 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) 2014 Blender Foundation.
* All rights reserved.
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file cage3d_gizmo.c
* \ingroup wm
*
* \name Cage Gizmo
*
* 2D Gizmo
*
* \brief Rectangular gizmo acting as a 'cage' around its content.
* Interacting scales or translates the gizmo.
*/
#include "MEM_guardedalloc.h"
#include "BLI_math.h"
#include "BLI_rect.h"
#include "BKE_context.h"
#include "BIF_gl.h"
#include "GPU_matrix.h"
#include "GPU_shader.h"
#include "GPU_immediate.h"
#include "GPU_immediate_util.h"
#include "GPU_select.h"
#include "GPU_state.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "WM_api.h"
#include "WM_types.h"
#include "ED_screen.h"
#include "ED_view3d.h"
#include "ED_gizmo_library.h"
/* own includes */
#include "../gizmo_library_intern.h"
#define GIZMO_RESIZER_SIZE 10.0f
#define GIZMO_MARGIN_OFFSET_SCALE 1.5f
static void gizmo_calc_matrix_final_no_offset(
const wmGizmo *gz, float orig_matrix_final_no_offset[4][4], bool use_space)
{
float mat_identity[4][4];
struct WM_GizmoMatrixParams params = {NULL};
unit_m4(mat_identity);
if (use_space == false) {
params.matrix_basis = mat_identity;
}
params.matrix_offset = mat_identity;
WM_gizmo_calc_matrix_final_params(gz, ¶ms, orig_matrix_final_no_offset);
}
static void gizmo_calc_rect_view_scale(
const wmGizmo *gz, const float dims[3], float scale[3])
{
UNUSED_VARS(dims);
/* Unlike cage2d, no need to correct for aspect. */
float matrix_final_no_offset[4][4];
float x_axis[3], y_axis[3], z_axis[3];
gizmo_calc_matrix_final_no_offset(gz, matrix_final_no_offset, false);
mul_v3_mat3_m4v3(x_axis, matrix_final_no_offset, gz->matrix_offset[0]);
mul_v3_mat3_m4v3(y_axis, matrix_final_no_offset, gz->matrix_offset[1]);
mul_v3_mat3_m4v3(z_axis, matrix_final_no_offset, gz->matrix_offset[2]);
scale[0] = 1.0f / len_v3(x_axis);
scale[1] = 1.0f / len_v3(y_axis);
scale[2] = 1.0f / len_v3(z_axis);
}
static void gizmo_calc_rect_view_margin(
const wmGizmo *gz, const float dims[3], float margin[3])
{
float handle_size;
if (gz->parent_gzgroup->type->flag & WM_GIZMOGROUPTYPE_3D) {
handle_size = 0.15f;
}
else {
handle_size = GIZMO_RESIZER_SIZE;
}
// XXX, the scale isn't taking offset into account, we need to calculate scale per handle!
// handle_size *= gz->scale_final;
float scale_xyz[3];
gizmo_calc_rect_view_scale(gz, dims, scale_xyz);
margin[0] = ((handle_size * scale_xyz[0]));
margin[1] = ((handle_size * scale_xyz[1]));
margin[2] = ((handle_size * scale_xyz[2]));
}
/* -------------------------------------------------------------------- */
static void gizmo_rect_pivot_from_scale_part(int part, float r_pt[3], bool r_constrain_axis[3])
{
if (part >= ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z &&
part <= ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MAX_Z)
{
int index = (part - ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z);
int range[3];
range[2] = index % 3;
index = index / 3;
range[1] = index % 3;
index = index / 3;
range[0] = index % 3;
const float sign[3] = {0.5f, 0.0f, -0.5f};
for (int i = 0; i < 3; i++) {
r_pt[i] = sign[range[i]];
r_constrain_axis[i] = (range[i] == 1);
}
}
}
/* -------------------------------------------------------------------- */
/** \name Box Draw Style
*
* Useful for 3D views, see: #ED_GIZMO_CAGE2D_STYLE_BOX
* \{ */
static void cage3d_draw_box_corners(
const float r[3], const float margin[3], const float color[3])
{
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
UNUSED_VARS(margin);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor3fv(color);
imm_draw_cube_wire_3d(pos, (float[3]){0}, r);
immUnbindProgram();
}
static void cage3d_draw_box_interaction(
const float color[4], const int highlighted,
const float size[3], const float margin[3])
{
if (highlighted >= ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z &&
highlighted <= ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MAX_Z)
{
int index = (highlighted - ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z);
int range[3];
range[2] = index % 3;
index = index / 3;
range[1] = index % 3;
index = index / 3;
range[0] = index % 3;
const float sign[3] = {-1.0f, 0.0f, 1.0f};
float co[3];
for (int i = 0; i < 3; i++) {
co[i] = size[i] * sign[range[i]];
}
const float rad[3] = {margin[0] / 3, margin[1] / 3, margin[2] / 3};
{
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor3fv(color);
imm_draw_cube_fill_3d(pos, co, rad);
immUnbindProgram();
}
}
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Circle Draw Style
*
* Useful for 2D views, see: #ED_GIZMO_CAGE2D_STYLE_CIRCLE
* \{ */
static void imm_draw_point_aspect_3d(
uint pos, const float co[3], const float rad[3], bool solid)
{
if (solid) {
imm_draw_cube_fill_3d(pos, co, rad);
}
else {
imm_draw_cube_wire_3d(pos, co, rad);
}
}
static void cage3d_draw_circle_wire(
const float r[3], const float margin[3], const float color[3],
const int transform_flag, const int draw_options)
{
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor3fv(color);
imm_draw_cube_wire_3d(pos, (float[3]){0}, r);
#if 0
if (transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_TRANSLATE) {
if (draw_options & ED_GIZMO_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) {
const float rad[2] = {margin[0] / 2, margin[1] / 2};
const float center[2] = {0.0f, 0.0f};
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, center[0] - rad[0], center[1] - rad[1]);
immVertex2f(pos, center[0] + rad[0], center[1] + rad[1]);
immVertex2f(pos, center[0] + rad[0], center[1] - rad[1]);
immVertex2f(pos, center[0] - rad[0], center[1] + rad[1]);
immEnd();
}
}
#else
UNUSED_VARS(margin, transform_flag, draw_options);
#endif
immUnbindProgram();
}
static void cage3d_draw_circle_handles(
const RegionView3D *rv3d, const float matrix_final[4][4],
const float r[3], const float margin[3], const float color[3],
bool solid, float scale)
{
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
const float rad[3] = {margin[0] / 3, margin[1] / 3, margin[2] / 3};
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor3fv(color);
float sign[3] = {-1.0f, 0.0f, 1.0f};
for (int x = 0; x < 3; x++) {
for (int y = 0; y < 3; y++) {
for (int z = 0; z < 3; z++) {
if (x == 1 && y == 1 && z == 1) {
continue;
}
const float co[3] = {r[0] * sign[x], r[1] * sign[y], r[2] * sign[z]};
float co_test[3];
mul_v3_m4v3(co_test, matrix_final, co);
float rad_scale[3];
mul_v3_v3fl(rad_scale, rad, ED_view3d_pixel_size(rv3d, co_test) * scale);
imm_draw_point_aspect_3d(pos, co, rad_scale, solid);
}
}
}
immUnbindProgram();
}
/** \} */
static void gizmo_cage3d_draw_intern(
RegionView3D *rv3d,
wmGizmo *gz, const bool select, const bool highlight, const int select_id)
{
// const bool use_clamp = (gz->parent_gzgroup->type->flag & WM_GIZMOGROUPTYPE_3D) == 0;
float dims[3];
RNA_float_get_array(gz->ptr, "dimensions", dims);
float matrix_final[4][4];
const int transform_flag = RNA_enum_get(gz->ptr, "transform");
const int draw_style = RNA_enum_get(gz->ptr, "draw_style");
const int draw_options = RNA_enum_get(gz->ptr, "draw_options");
const float size_real[3] = {dims[0] / 2.0f, dims[1] / 2.0f, dims[2] / 2.0f};
WM_gizmo_calc_matrix_final(gz, matrix_final);
GPU_matrix_push();
GPU_matrix_mul(matrix_final);
float margin[3];
gizmo_calc_rect_view_margin(gz, dims, margin);
/* Handy for quick testing draw (if it's outside bounds). */
if (false) {
GPU_blend(true);
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
immUniformColor4fv((const float[4]){1, 1, 1, 0.5f});
float s = 0.5f;
immRectf(pos, -s, -s, s, s);
immUnbindProgram();
GPU_blend(false);
}
if (select) {
/* expand for hotspot */
#if 0
const float size[3] = {
size_real[0] + margin[0] / 2,
size_real[1] + margin[1] / 2,
size_real[2] + margin[2] / 2,
};
#else
/* just use same value for now. */
const float size[3] = {UNPACK3(size_real)};
#endif
if (transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_SCALE) {
for (int i = ED_GIZMO_CAGE3D_PART_SCALE_MIN_X_MIN_Y_MIN_Z;
i <= ED_GIZMO_CAGE3D_PART_SCALE_MAX_X_MAX_Y_MAX_Z;
i++)
{
if (i == ED_GIZMO_CAGE3D_PART_SCALE_MID_X_MID_Y_MID_Z) {
continue;
}
GPU_select_load_id(select_id | i);
cage3d_draw_box_interaction(
gz->color, i, size, margin);
}
}
if (transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_TRANSLATE) {
const int transform_part = ED_GIZMO_CAGE3D_PART_TRANSLATE;
GPU_select_load_id(select_id | transform_part);
cage3d_draw_box_interaction(
gz->color, transform_part, size, margin);
}
}
else {
#if 0
const rctf _r = {
.xmin = -size_real[0],
.ymin = -size_real[1],
.xmax = size_real[0],
.ymax = size_real[1],
};
#endif
if (draw_style == ED_GIZMO_CAGE2D_STYLE_BOX) {
/* corner gizmos */
GPU_line_width(gz->line_width + 3.0f);
cage3d_draw_box_corners(size_real, margin, (const float[3]){0, 0, 0});
/* corner gizmos */
float color[4];
gizmo_color_get(gz, highlight, color);
GPU_line_width(gz->line_width);
cage3d_draw_box_corners(size_real, margin, color);
bool show = false;
if (gz->highlight_part == ED_GIZMO_CAGE3D_PART_TRANSLATE) {
/* Only show if we're drawing the center handle
* otherwise the entire rectangle is the hotspot. */
if (draw_options & ED_GIZMO_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE) {
show = true;
}
}
else {
show = true;
}
if (show) {
cage3d_draw_box_interaction(
gz->color, gz->highlight_part, size_real, margin);
}
}
else if (draw_style == ED_GIZMO_CAGE2D_STYLE_CIRCLE) {
float color[4];
gizmo_color_get(gz, highlight, color);
GPU_line_smooth(true);
GPU_polygon_smooth(true);
GPU_blend(true);
GPU_line_width(gz->line_width + 3.0f);
cage3d_draw_circle_wire(size_real, margin, (const float[3]){0, 0, 0}, transform_flag, draw_options);
GPU_line_width(gz->line_width);
cage3d_draw_circle_wire(size_real, margin, color, transform_flag, draw_options);
/* corner gizmos */
cage3d_draw_circle_handles(rv3d, matrix_final, size_real, margin, (const float[3]){0, 0, 0}, true, 60);
cage3d_draw_circle_handles(rv3d, matrix_final, size_real, margin, color, true, 40);
GPU_blend(false);
GPU_polygon_smooth(false);
GPU_line_smooth(false);
}
else {
BLI_assert(0);
}
}
GPU_line_width(1.0);
GPU_matrix_pop();
}
/**
* For when we want to draw 3d cage in 3d views.
*/
static void gizmo_cage3d_draw_select(const bContext *C, wmGizmo *gz, int select_id)
{
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
gizmo_cage3d_draw_intern(rv3d, gz, true, false, select_id);
}
static void gizmo_cage3d_draw(const bContext *C, wmGizmo *gz)
{
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
const bool is_highlight = (gz->state & WM_GIZMO_STATE_HIGHLIGHT) != 0;
gizmo_cage3d_draw_intern(rv3d, gz, false, is_highlight, -1);
}
static int gizmo_cage3d_get_cursor(wmGizmo *gz)
{
if (gz->parent_gzgroup->type->flag & WM_GIZMOGROUPTYPE_3D) {
return BC_NSEW_SCROLLCURSOR;
}
return CURSOR_STD;
}
typedef struct RectTransformInteraction {
float orig_mouse[3];
float orig_matrix_offset[4][4];
float orig_matrix_final_no_offset[4][4];
} RectTransformInteraction;
static void gizmo_cage3d_setup(wmGizmo *gz)
{
gz->flag |= /* WM_GIZMO_DRAW_MODAL | */ /* TODO */
WM_GIZMO_DRAW_NO_SCALE;
}
static int gizmo_cage3d_invoke(
bContext *C, wmGizmo *gz, const wmEvent *event)
{
RectTransformInteraction *data = MEM_callocN(sizeof(RectTransformInteraction), "cage_interaction");
copy_m4_m4(data->orig_matrix_offset, gz->matrix_offset);
gizmo_calc_matrix_final_no_offset(gz, data->orig_matrix_final_no_offset, true);
if (gizmo_window_project_3d(
C, gz, (const float[2]){UNPACK2(event->mval)}, false, data->orig_mouse) == 0)
{
zero_v3(data->orig_mouse);
}
gz->interaction_data = data;
return OPERATOR_RUNNING_MODAL;
}
static int gizmo_cage3d_modal(
bContext *C, wmGizmo *gz, const wmEvent *event,
eWM_GizmoFlagTweak UNUSED(tweak_flag))
{
/* For transform logic to be managable we operate in -0.5..0.5 2D space,
* no matter the size of the rectangle, mouse coorts are scaled to unit space.
* The mouse coords have been projected into the matrix so we don't need to worry about axis alignment.
*
* - The cursor offset are multiplied by 'dims'.
* - Matrix translation is also multiplied by 'dims'.
*/
RectTransformInteraction *data = gz->interaction_data;
float point_local[3];
float dims[3];
RNA_float_get_array(gz->ptr, "dimensions", dims);
{
float matrix_back[4][4];
copy_m4_m4(matrix_back, gz->matrix_offset);
copy_m4_m4(gz->matrix_offset, data->orig_matrix_offset);
bool ok = gizmo_window_project_3d(
C, gz, (const float[2]){UNPACK2(event->mval)}, false, point_local);
copy_m4_m4(gz->matrix_offset, matrix_back);
if (!ok) {
return OPERATOR_RUNNING_MODAL;
}
}
const int transform_flag = RNA_enum_get(gz->ptr, "transform");
wmGizmoProperty *gz_prop;
gz_prop = WM_gizmo_target_property_find(gz, "matrix");
if (gz_prop->type != NULL) {
WM_gizmo_target_property_float_get_array(gz, gz_prop, &gz->matrix_offset[0][0]);
}
if (gz->highlight_part == ED_GIZMO_CAGE3D_PART_TRANSLATE) {
/* do this to prevent clamping from changing size */
copy_m4_m4(gz->matrix_offset, data->orig_matrix_offset);
gz->matrix_offset[3][0] = data->orig_matrix_offset[3][0] + (point_local[0] - data->orig_mouse[0]);
gz->matrix_offset[3][1] = data->orig_matrix_offset[3][1] + (point_local[1] - data->orig_mouse[1]);
gz->matrix_offset[3][2] = data->orig_matrix_offset[3][2] + (point_local[2] - data->orig_mouse[2]);
}
else if (gz->highlight_part == ED_GIZMO_CAGE3D_PART_ROTATE) {
/* TODO (if needed) */
}
else {
/* scale */
copy_m4_m4(gz->matrix_offset, data->orig_matrix_offset);
float pivot[3];
bool constrain_axis[3] = {false};
if (transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_TRANSLATE) {
gizmo_rect_pivot_from_scale_part(gz->highlight_part, pivot, constrain_axis);
}
else {
zero_v3(pivot);
}
/* Cursor deltas scaled to (-0.5..0.5). */
float delta_orig[3], delta_curr[3];
for (int i = 0; i < 3; i++) {
delta_orig[i] = ((data->orig_mouse[i] - data->orig_matrix_offset[3][i]) / dims[i]) - pivot[i];
delta_curr[i] = ((point_local[i] - data->orig_matrix_offset[3][i]) / dims[i]) - pivot[i];
}
float scale[3] = {1.0f, 1.0f, 1.0f};
for (int i = 0; i < 3; i++) {
if (constrain_axis[i] == false) {
if (delta_orig[i] < 0.0f) {
delta_orig[i] *= -1.0f;
delta_curr[i] *= -1.0f;
}
const int sign = signum_i(scale[i]);
scale[i] = 1.0f + ((delta_curr[i] - delta_orig[i]) / len_v3(data->orig_matrix_offset[i]));
if ((transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_SCALE_SIGNED) == 0) {
if (sign != signum_i(scale[i])) {
scale[i] = 0.0f;
}
}
}
}
if (transform_flag & ED_GIZMO_CAGE2D_XFORM_FLAG_SCALE_UNIFORM) {
if (constrain_axis[0] == false && constrain_axis[1] == false) {
scale[1] = scale[0] = (scale[1] + scale[0]) / 2.0f;
}
else if (constrain_axis[0] == false) {
scale[1] = scale[0];
}
else if (constrain_axis[1] == false) {
scale[0] = scale[1];
}
else {
BLI_assert(0);
}
}
/* scale around pivot */
float matrix_scale[4][4];
unit_m4(matrix_scale);
mul_v3_fl(matrix_scale[0], scale[0]);
mul_v3_fl(matrix_scale[1], scale[1]);
mul_v3_fl(matrix_scale[2], scale[2]);
transform_pivot_set_m4(
matrix_scale,
(const float[3]){pivot[0] * dims[0], pivot[1] * dims[1], pivot[2] * dims[2]});
mul_m4_m4m4(gz->matrix_offset, data->orig_matrix_offset, matrix_scale);
}
if (gz_prop->type != NULL) {
WM_gizmo_target_property_float_set_array(C, gz, gz_prop, &gz->matrix_offset[0][0]);
}
/* tag the region for redraw */
ED_region_tag_redraw(CTX_wm_region(C));
WM_event_add_mousemove(C);
return OPERATOR_RUNNING_MODAL;
}
static void gizmo_cage3d_property_update(wmGizmo *gz, wmGizmoProperty *gz_prop)
{
if (STREQ(gz_prop->type->idname, "matrix")) {
if (WM_gizmo_target_property_array_length(gz, gz_prop) == 16) {
WM_gizmo_target_property_float_get_array(gz, gz_prop, &gz->matrix_offset[0][0]);
}
else {
BLI_assert(0);
}
}
else {
BLI_assert(0);
}
}
static void gizmo_cage3d_exit(bContext *C, wmGizmo *gz, const bool cancel)
{
RectTransformInteraction *data = gz->interaction_data;
if (!cancel)
return;
wmGizmoProperty *gz_prop;
/* reset properties */
gz_prop = WM_gizmo_target_property_find(gz, "matrix");
if (gz_prop->type != NULL) {
WM_gizmo_target_property_float_set_array(C, gz, gz_prop, &data->orig_matrix_offset[0][0]);
}
copy_m4_m4(gz->matrix_offset, data->orig_matrix_offset);
}
/* -------------------------------------------------------------------- */
/** \name Cage Gizmo API
*
* \{ */
static void GIZMO_GT_cage_3d(wmGizmoType *gzt)
{
/* identifiers */
gzt->idname = "GIZMO_GT_cage_3d";
/* api callbacks */
gzt->draw = gizmo_cage3d_draw;
gzt->draw_select = gizmo_cage3d_draw_select;
gzt->setup = gizmo_cage3d_setup;
gzt->invoke = gizmo_cage3d_invoke;
gzt->property_update = gizmo_cage3d_property_update;
gzt->modal = gizmo_cage3d_modal;
gzt->exit = gizmo_cage3d_exit;
gzt->cursor_get = gizmo_cage3d_get_cursor;
gzt->struct_size = sizeof(wmGizmo);
/* rna */
static EnumPropertyItem rna_enum_draw_style[] = {
{ED_GIZMO_CAGE2D_STYLE_BOX, "BOX", 0, "Box", ""},
{ED_GIZMO_CAGE2D_STYLE_CIRCLE, "CIRCLE", 0, "Circle", ""},
{0, NULL, 0, NULL, NULL}
};
static EnumPropertyItem rna_enum_transform[] = {
{ED_GIZMO_CAGE2D_XFORM_FLAG_TRANSLATE, "TRANSLATE", 0, "Move", ""},
{ED_GIZMO_CAGE2D_XFORM_FLAG_SCALE, "SCALE", 0, "Scale", ""},
{ED_GIZMO_CAGE2D_XFORM_FLAG_SCALE_UNIFORM, "SCALE_UNIFORM", 0, "Scale Uniform", ""},
{0, NULL, 0, NULL, NULL}
};
static EnumPropertyItem rna_enum_draw_options[] = {
{ED_GIZMO_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE, "XFORM_CENTER_HANDLE", 0, "Center Handle", ""},
{0, NULL, 0, NULL, NULL}
};
static float unit_v3[3] = {1.0f, 1.0f, 1.0f};
RNA_def_float_vector(gzt->srna, "dimensions", 3, unit_v3, 0, FLT_MAX, "Dimensions", "", 0.0f, FLT_MAX);
RNA_def_enum_flag(gzt->srna, "transform", rna_enum_transform, 0, "Transform Options", "");
RNA_def_enum(gzt->srna, "draw_style", rna_enum_draw_style, ED_GIZMO_CAGE2D_STYLE_CIRCLE, "Draw Style", "");
RNA_def_enum_flag(
gzt->srna, "draw_options", rna_enum_draw_options,
ED_GIZMO_CAGE2D_DRAW_FLAG_XFORM_CENTER_HANDLE, "Draw Options", "");
WM_gizmotype_target_property_def(gzt, "matrix", PROP_FLOAT, 16);
}
void ED_gizmotypes_cage_3d(void)
{
WM_gizmotype_append(GIZMO_GT_cage_3d);
}
/** \} */
|