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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup edgizmolib
*
* \name Primitive Gizmo
*
* 3D Gizmo
*
* \brief Gizmo with primitive drawing type (plane, cube, etc.).
* Currently only plane primitive supported without own handling, use with operator only.
*/
#include "MEM_guardedalloc.h"
#include "BLI_math.h"
#include "DNA_view3d_types.h"
#include "BKE_context.h"
#include "GPU_immediate.h"
#include "GPU_matrix.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_gizmo_library.h"
/* own includes */
#include "../gizmo_library_intern.h"
static float verts_plane[4][3] = {
{-1, -1, 0},
{1, -1, 0},
{1, 1, 0},
{-1, 1, 0},
};
/* -------------------------------------------------------------------- */
static void gizmo_primitive_draw_geom(const float col_inner[4],
const float col_outer[4],
const int draw_style)
{
float(*verts)[3];
uint vert_count = 0;
if (draw_style == ED_GIZMO_PRIMITIVE_STYLE_PLANE) {
verts = verts_plane;
vert_count = ARRAY_SIZE(verts_plane);
}
if (vert_count > 0) {
uint pos = GPU_vertformat_attr_add(immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
wm_gizmo_vec_draw(col_inner, verts, vert_count, pos, GPU_PRIM_TRI_FAN);
wm_gizmo_vec_draw(col_outer, verts, vert_count, pos, GPU_PRIM_LINE_LOOP);
immUnbindProgram();
}
}
static void gizmo_primitive_draw_intern(wmGizmo *gz,
const bool UNUSED(select),
const bool highlight)
{
float color_inner[4], color_outer[4];
float matrix_final[4][4];
const int draw_style = RNA_enum_get(gz->ptr, "draw_style");
gizmo_color_get(gz, highlight, color_outer);
copy_v4_v4(color_inner, color_outer);
color_inner[3] *= 0.5f;
WM_gizmo_calc_matrix_final(gz, matrix_final);
GPU_matrix_push();
GPU_matrix_mul(matrix_final);
GPU_blend(GPU_BLEND_ALPHA);
gizmo_primitive_draw_geom(color_inner, color_outer, draw_style);
GPU_blend(GPU_BLEND_NONE);
GPU_matrix_pop();
if (gz->interaction_data) {
GizmoInteraction *inter = gz->interaction_data;
copy_v4_fl(color_inner, 0.5f);
copy_v3_fl(color_outer, 0.5f);
color_outer[3] = 0.8f;
GPU_matrix_push();
GPU_matrix_mul(inter->init_matrix_final);
GPU_blend(GPU_BLEND_ALPHA);
gizmo_primitive_draw_geom(color_inner, color_outer, draw_style);
GPU_blend(GPU_BLEND_NONE);
GPU_matrix_pop();
}
}
static void gizmo_primitive_draw_select(const bContext *UNUSED(C), wmGizmo *gz, int select_id)
{
GPU_select_load_id(select_id);
gizmo_primitive_draw_intern(gz, true, false);
}
static void gizmo_primitive_draw(const bContext *UNUSED(C), wmGizmo *gz)
{
gizmo_primitive_draw_intern(gz, false, (gz->state & WM_GIZMO_STATE_HIGHLIGHT));
}
static void gizmo_primitive_setup(wmGizmo *gz)
{
gz->flag |= WM_GIZMO_DRAW_MODAL;
}
static int gizmo_primitive_invoke(bContext *UNUSED(C), wmGizmo *gz, const wmEvent *UNUSED(event))
{
GizmoInteraction *inter = MEM_callocN(sizeof(GizmoInteraction), __func__);
WM_gizmo_calc_matrix_final(gz, inter->init_matrix_final);
gz->interaction_data = inter;
return OPERATOR_RUNNING_MODAL;
}
/* -------------------------------------------------------------------- */
/** \name Primitive Gizmo API
* \{ */
static void GIZMO_GT_primitive_3d(wmGizmoType *gzt)
{
/* identifiers */
gzt->idname = "GIZMO_GT_primitive_3d";
/* api callbacks */
gzt->draw = gizmo_primitive_draw;
gzt->draw_select = gizmo_primitive_draw_select;
gzt->setup = gizmo_primitive_setup;
gzt->invoke = gizmo_primitive_invoke;
gzt->struct_size = sizeof(wmGizmo);
static EnumPropertyItem rna_enum_draw_style[] = {
{ED_GIZMO_PRIMITIVE_STYLE_PLANE, "PLANE", 0, "Plane", ""},
{0, NULL, 0, NULL, NULL},
};
RNA_def_enum(gzt->srna,
"draw_style",
rna_enum_draw_style,
ED_GIZMO_PRIMITIVE_STYLE_PLANE,
"Draw Style",
"");
}
void ED_gizmotypes_primitive_3d(void)
{
WM_gizmotype_append(GIZMO_GT_primitive_3d);
}
/** \} */
|
