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
|
/*
* ***** 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.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/space_node/node_widgets.c
* \ingroup spnode
*/
#include "BKE_context.h"
#include "BKE_image.h"
#include "DNA_manipulator_types.h"
#include "ED_screen.h"
#include "ED_manipulator_library.h"
#include "IMB_imbuf_types.h"
#include "MEM_guardedalloc.h"
#include "RNA_access.h"
#include "WM_api.h"
#include "WM_types.h"
#include "node_intern.h"
static bool WIDGETGROUP_node_transform_poll(const bContext *C, wmManipulatorGroupType *UNUSED(wgrouptype))
{
SpaceNode *snode = CTX_wm_space_node(C);
if ((snode->flag & SNODE_BACKDRAW) == 0) {
return false;
}
if (snode && snode->edittree && snode->edittree->type == NTREE_COMPOSIT) {
bNode *node = nodeGetActive(snode->edittree);
if (node && node->type == CMP_NODE_VIEWER) {
return true;
}
}
return false;
}
static void WIDGETGROUP_node_transform_init(const bContext *UNUSED(C), wmManipulatorGroup *wgroup)
{
wmManipulatorWrapper *wwrapper = MEM_mallocN(sizeof(wmManipulatorWrapper), __func__);
wwrapper->manipulator = ED_manipulator_rect_transform_new(
wgroup, "backdrop_cage",
ED_MANIPULATOR_RECT_TRANSFORM_STYLE_TRANSLATE | ED_MANIPULATOR_RECT_TRANSFORM_STYLE_SCALE_UNIFORM);
wgroup->customdata = wwrapper;
}
static void WIDGETGROUP_node_transform_refresh(const bContext *C, wmManipulatorGroup *wgroup)
{
wmManipulator *cage = ((wmManipulatorWrapper *)wgroup->customdata)->manipulator;
const ARegion *ar = CTX_wm_region(C);
/* center is always at the origin */
const float origin[3] = {ar->winx / 2, ar->winy / 2};
void *lock;
Image *ima = BKE_image_verify_viewer(IMA_TYPE_COMPOSITE, "Viewer Node");
ImBuf *ibuf = BKE_image_acquire_ibuf(ima, NULL, &lock);
if (ibuf) {
const float w = (ibuf->x > 0) ? ibuf->x : 64.0f;
const float h = (ibuf->y > 0) ? ibuf->y : 64.0f;
ED_manipulator_rect_transform_set_dimensions(cage, w, h);
WM_manipulator_set_origin(cage, origin);
WM_manipulator_set_flag(cage, WM_MANIPULATOR_HIDDEN, false);
/* need to set property here for undo. TODO would prefer to do this in _init */
SpaceNode *snode = CTX_wm_space_node(C);
PointerRNA nodeptr;
RNA_pointer_create(snode->id, &RNA_SpaceNodeEditor, snode, &nodeptr);
WM_manipulator_set_property(cage, ED_MANIPULATOR_RECT_TX_SLOT_OFFSET, &nodeptr, "backdrop_offset");
WM_manipulator_set_property(cage, ED_MANIPULATOR_RECT_TX_SLOT_SCALE, &nodeptr, "backdrop_zoom");
}
else {
WM_manipulator_set_flag(cage, WM_MANIPULATOR_HIDDEN, true);
}
BKE_image_release_ibuf(ima, ibuf, lock);
}
void NODE_WGT_backdrop_transform(wmManipulatorGroupType *wgt)
{
wgt->name = "Backdrop Transform Widgets";
wgt->poll = WIDGETGROUP_node_transform_poll;
wgt->init = WIDGETGROUP_node_transform_init;
wgt->refresh = WIDGETGROUP_node_transform_refresh;
}
|
