1562 lines
42 KiB
C
1562 lines
42 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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/** \file
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* \ingroup edtransform
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*/
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#include <float.h>
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#include "PIL_time.h"
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#include "DNA_windowmanager_types.h"
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#include "BLI_blenlib.h"
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#include "BLI_math.h"
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#include "GPU_immediate.h"
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#include "GPU_state.h"
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#include "BKE_context.h"
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#include "BKE_editmesh.h"
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#include "BKE_layer.h"
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#include "BKE_object.h"
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#include "BKE_scene.h"
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#include "BKE_sequencer.h"
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#include "RNA_access.h"
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#include "WM_types.h"
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#include "ED_gizmo_library.h"
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#include "ED_markers.h"
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#include "ED_node.h"
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#include "ED_transform_snap_object_context.h"
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#include "ED_uvedit.h"
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#include "UI_resources.h"
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#include "UI_view2d.h"
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#include "MEM_guardedalloc.h"
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#include "transform.h"
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#include "transform_convert.h"
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#include "transform_snap.h"
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/* this should be passed as an arg for use in snap functions */
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#undef BASACT
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/* use half of flt-max so we can scale up without an exception */
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/* -------------------------------------------------------------------- */
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/** \name Prototypes
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* \{ */
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static void setSnappingCallback(TransInfo *t);
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/* static void CalcSnapGrid(TransInfo *t, float *vec); */
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static void CalcSnapGeometry(TransInfo *t, float *vec);
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static void TargetSnapMedian(TransInfo *t);
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static void TargetSnapCenter(TransInfo *t);
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static void TargetSnapClosest(TransInfo *t);
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static void TargetSnapActive(TransInfo *t);
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name Implementations
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* \{ */
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static bool snapNodeTest(View2D *v2d, bNode *node, eSnapSelect snap_select);
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static NodeBorder snapNodeBorder(int snap_node_mode);
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#if 0
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int BIF_snappingSupported(Object *obedit)
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{
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int status = 0;
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/* only support object mesh, armature, curves */
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if (obedit == NULL || ELEM(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE, OB_MBALL)) {
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status = 1;
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}
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return status;
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}
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#endif
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static bool snap_use_backface_culling(const TransInfo *t)
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{
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BLI_assert(t->spacetype == SPACE_VIEW3D);
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View3D *v3d = t->view;
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if ((v3d->shading.type == OB_SOLID) && (v3d->shading.flag & V3D_SHADING_BACKFACE_CULLING)) {
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return true;
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}
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if (v3d->shading.type == OB_RENDER &&
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(t->scene->display.shading.flag & V3D_SHADING_BACKFACE_CULLING) &&
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BKE_scene_uses_blender_workbench(t->scene)) {
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return true;
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}
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if (t->settings->snap_flag & SCE_SNAP_BACKFACE_CULLING) {
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return true;
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}
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return false;
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}
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bool validSnap(const TransInfo *t)
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{
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return (t->tsnap.status & (POINT_INIT | TARGET_INIT)) == (POINT_INIT | TARGET_INIT) ||
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(t->tsnap.status & (MULTI_POINTS | TARGET_INIT)) == (MULTI_POINTS | TARGET_INIT);
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}
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bool activeSnap(const TransInfo *t)
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{
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return ((t->modifiers & (MOD_SNAP | MOD_SNAP_INVERT)) == MOD_SNAP) ||
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((t->modifiers & (MOD_SNAP | MOD_SNAP_INVERT)) == MOD_SNAP_INVERT);
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}
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bool transformModeUseSnap(const TransInfo *t)
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{
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ToolSettings *ts = t->settings;
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if (t->mode == TFM_TRANSLATION) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_TRANSLATE) != 0;
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}
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if (t->mode == TFM_ROTATION) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_ROTATE) != 0;
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}
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if (t->mode == TFM_RESIZE) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_SCALE) != 0;
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}
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if (t->mode == TFM_VERT_SLIDE) {
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return true;
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}
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if (t->mode == TFM_EDGE_SLIDE) {
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return true;
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}
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return false;
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}
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static bool doForceIncrementSnap(const TransInfo *t)
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{
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return !transformModeUseSnap(t);
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}
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void drawSnapping(const struct bContext *C, TransInfo *t)
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{
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uchar col[4], selectedCol[4], activeCol[4];
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if (!activeSnap(t)) {
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return;
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}
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UI_GetThemeColor3ubv(TH_TRANSFORM, col);
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col[3] = 128;
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UI_GetThemeColor3ubv(TH_SELECT, selectedCol);
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selectedCol[3] = 128;
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UI_GetThemeColor3ubv(TH_ACTIVE, activeCol);
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activeCol[3] = 192;
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if (t->spacetype == SPACE_VIEW3D) {
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bool draw_target = (t->tsnap.status & TARGET_INIT) &&
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(t->scene->toolsettings->snap_mode & SCE_SNAP_MODE_EDGE_PERPENDICULAR);
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if (draw_target || validSnap(t)) {
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const float *loc_cur = NULL;
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const float *loc_prev = NULL;
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const float *normal = NULL;
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GPU_depth_test(GPU_DEPTH_NONE);
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RegionView3D *rv3d = CTX_wm_region_view3d(C);
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if (!BLI_listbase_is_empty(&t->tsnap.points)) {
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/* Draw snap points. */
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float size = 2.0f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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float view_inv[4][4];
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copy_m4_m4(view_inv, rv3d->viewinv);
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
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immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
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LISTBASE_FOREACH (TransSnapPoint *, p, &t->tsnap.points) {
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if (p == t->tsnap.selectedPoint) {
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immUniformColor4ubv(selectedCol);
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}
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else {
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immUniformColor4ubv(col);
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}
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imm_drawcircball(p->co, ED_view3d_pixel_size(rv3d, p->co) * size, view_inv, pos);
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}
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immUnbindProgram();
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}
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/* draw normal if needed */
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if (usingSnappingNormal(t) && validSnappingNormal(t)) {
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normal = t->tsnap.snapNormal;
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}
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if (draw_target) {
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loc_prev = t->tsnap.snapTarget;
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}
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if (validSnap(t)) {
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loc_cur = t->tsnap.snapPoint;
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}
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ED_gizmotypes_snap_3d_draw_util(
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rv3d, loc_prev, loc_cur, normal, col, activeCol, t->tsnap.snapElem);
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GPU_depth_test(GPU_DEPTH_LESS_EQUAL);
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}
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}
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else if (t->spacetype == SPACE_IMAGE) {
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if (validSnap(t)) {
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/* This will not draw, and Im nor sure why - campbell */
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/* TODO: see 2.7x for non-working code */
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}
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}
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else if (t->spacetype == SPACE_NODE) {
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if (validSnap(t)) {
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ARegion *region = CTX_wm_region(C);
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TransSnapPoint *p;
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float size;
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size = 2.5f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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GPU_blend(GPU_BLEND_ALPHA);
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
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immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
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for (p = t->tsnap.points.first; p; p = p->next) {
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if (p == t->tsnap.selectedPoint) {
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immUniformColor4ubv(selectedCol);
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}
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else {
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immUniformColor4ubv(col);
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}
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ED_node_draw_snap(®ion->v2d, p->co, size, 0, pos);
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}
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if (t->tsnap.status & POINT_INIT) {
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immUniformColor4ubv(activeCol);
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ED_node_draw_snap(®ion->v2d, t->tsnap.snapPoint, size, t->tsnap.snapNodeBorder, pos);
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}
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immUnbindProgram();
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GPU_blend(GPU_BLEND_NONE);
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}
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}
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}
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eRedrawFlag handleSnapping(TransInfo *t, const wmEvent *event)
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{
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eRedrawFlag status = TREDRAW_NOTHING;
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#if 0 /* XXX need a proper selector for all snap mode */
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if (BIF_snappingSupported(t->obedit) && event->type == TABKEY && event->shift) {
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/* toggle snap and reinit */
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t->settings->snap_flag ^= SCE_SNAP;
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initSnapping(t, NULL);
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status = TREDRAW_HARD;
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}
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#endif
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if (event->type == MOUSEMOVE) {
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status |= updateSelectedSnapPoint(t);
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}
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return status;
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}
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void applyProject(TransInfo *t)
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{
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/* XXX FLICKER IN OBJECT MODE */
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if ((t->tsnap.project) && activeSnap(t) && (t->flag & T_NO_PROJECT) == 0) {
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float tvec[3];
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int i;
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FOREACH_TRANS_DATA_CONTAINER (t, tc) {
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TransData *td = tc->data;
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for (i = 0; i < tc->data_len; i++, td++) {
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float iloc[3], loc[3], no[3];
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float mval_fl[2];
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if (td->flag & TD_SKIP) {
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continue;
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}
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if ((t->flag & T_PROP_EDIT) && (td->factor == 0.0f)) {
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continue;
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}
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copy_v3_v3(iloc, td->loc);
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if (tc->use_local_mat) {
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mul_m4_v3(tc->mat, iloc);
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}
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else if (t->flag & T_OBJECT) {
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BKE_object_eval_transform_all(t->depsgraph, t->scene, td->ob);
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copy_v3_v3(iloc, td->ob->obmat[3]);
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}
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if (ED_view3d_project_float_global(t->region, iloc, mval_fl, V3D_PROJ_TEST_NOP) ==
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V3D_PROJ_RET_OK) {
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if (ED_transform_snap_object_project_view3d(
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t->tsnap.object_context,
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t->depsgraph,
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SCE_SNAP_MODE_FACE,
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&(const struct SnapObjectParams){
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.snap_select = t->tsnap.modeSelect,
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.use_object_edit_cage = (t->flag & T_EDIT) != 0,
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.use_occlusion_test = false,
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.use_backface_culling = t->tsnap.use_backface_culling,
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},
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mval_fl,
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NULL,
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0,
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loc,
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no)) {
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#if 0
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if (tc->use_local_mat) {
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mul_m4_v3(tc->imat, loc);
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}
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#endif
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sub_v3_v3v3(tvec, loc, iloc);
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mul_m3_v3(td->smtx, tvec);
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add_v3_v3(td->loc, tvec);
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if (t->tsnap.align && (t->flag & T_OBJECT)) {
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/* handle alignment as well */
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const float *original_normal;
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float mat[3][3];
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/* In pose mode, we want to align normals with Y axis of bones... */
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original_normal = td->axismtx[2];
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rotation_between_vecs_to_mat3(mat, original_normal, no);
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transform_data_ext_rotate(td, mat, true);
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/* TODO support constraints for rotation too? see ElementRotation */
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}
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}
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}
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#if 0 /* TODO: sipport this? */
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constraintTransLim(t, td);
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#endif
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}
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}
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}
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}
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void applyGridAbsolute(TransInfo *t)
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{
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int i;
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if (!(activeSnap(t) && (t->tsnap.mode & (SCE_SNAP_MODE_INCREMENT | SCE_SNAP_MODE_GRID)))) {
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return;
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}
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float grid_size = (t->modifiers & MOD_PRECISION) ? t->snap_spatial[1] : t->snap_spatial[0];
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/* early exit on unusable grid size */
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if (grid_size == 0.0f) {
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return;
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}
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FOREACH_TRANS_DATA_CONTAINER (t, tc) {
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TransData *td;
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for (i = 0, td = tc->data; i < tc->data_len; i++, td++) {
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float iloc[3], loc[3], tvec[3];
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if (td->flag & TD_SKIP) {
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continue;
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}
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if ((t->flag & T_PROP_EDIT) && (td->factor == 0.0f)) {
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continue;
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}
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copy_v3_v3(iloc, td->loc);
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if (tc->use_local_mat) {
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mul_m4_v3(tc->mat, iloc);
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}
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else if (t->flag & T_OBJECT) {
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BKE_object_eval_transform_all(t->depsgraph, t->scene, td->ob);
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copy_v3_v3(iloc, td->ob->obmat[3]);
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}
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mul_v3_v3fl(loc, iloc, 1.0f / grid_size);
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loc[0] = roundf(loc[0]);
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loc[1] = roundf(loc[1]);
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loc[2] = roundf(loc[2]);
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mul_v3_fl(loc, grid_size);
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sub_v3_v3v3(tvec, loc, iloc);
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mul_m3_v3(td->smtx, tvec);
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add_v3_v3(td->loc, tvec);
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}
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}
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}
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void applySnapping(TransInfo *t, float *vec)
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{
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/* Each Trans Data already makes the snap to face */
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if (doForceIncrementSnap(t)) {
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return;
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}
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if (t->tsnap.project && t->tsnap.mode == SCE_SNAP_MODE_FACE) {
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/* The snap has already been resolved for each transdata. */
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return;
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}
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if (t->tsnap.status & SNAP_FORCED) {
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t->tsnap.targetSnap(t);
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t->tsnap.applySnap(t, vec);
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}
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else if (((t->tsnap.mode & ~(SCE_SNAP_MODE_INCREMENT | SCE_SNAP_MODE_GRID)) != 0) &&
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activeSnap(t)) {
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double current = PIL_check_seconds_timer();
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/* Time base quirky code to go around findnearest slowness */
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/* TODO: add exception for object mode, no need to slow it down then. */
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if (current - t->tsnap.last >= 0.01) {
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t->tsnap.calcSnap(t, vec);
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t->tsnap.targetSnap(t);
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t->tsnap.last = current;
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}
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if (validSnap(t)) {
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t->tsnap.applySnap(t, vec);
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}
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}
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}
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void resetSnapping(TransInfo *t)
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{
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t->tsnap.status = 0;
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t->tsnap.snapElem = 0;
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t->tsnap.align = false;
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t->tsnap.project = 0;
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t->tsnap.mode = 0;
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t->tsnap.modeSelect = 0;
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t->tsnap.target = 0;
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t->tsnap.last = 0;
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t->tsnap.snapNormal[0] = 0;
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t->tsnap.snapNormal[1] = 0;
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t->tsnap.snapNormal[2] = 0;
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t->tsnap.snapNodeBorder = 0;
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}
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bool usingSnappingNormal(const TransInfo *t)
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{
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return t->tsnap.align;
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}
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bool validSnappingNormal(const TransInfo *t)
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{
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if (validSnap(t)) {
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if (!is_zero_v3(t->tsnap.snapNormal)) {
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return true;
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}
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}
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return false;
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}
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static bool bm_edge_is_snap_target(BMEdge *e, void *UNUSED(user_data))
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{
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if (BM_elem_flag_test(e, BM_ELEM_SELECT | BM_ELEM_HIDDEN) ||
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BM_elem_flag_test(e->v1, BM_ELEM_SELECT) || BM_elem_flag_test(e->v2, BM_ELEM_SELECT)) {
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return false;
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}
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return true;
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}
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static bool bm_face_is_snap_target(BMFace *f, void *UNUSED(user_data))
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{
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if (BM_elem_flag_test(f, BM_ELEM_SELECT | BM_ELEM_HIDDEN)) {
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return false;
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}
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|
|
BMLoop *l_iter, *l_first;
|
|
l_iter = l_first = BM_FACE_FIRST_LOOP(f);
|
|
do {
|
|
if (BM_elem_flag_test(l_iter->v, BM_ELEM_SELECT)) {
|
|
return false;
|
|
}
|
|
} while ((l_iter = l_iter->next) != l_first);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void initSnappingMode(TransInfo *t)
|
|
{
|
|
ToolSettings *ts = t->settings;
|
|
/* All obedit types will match. */
|
|
const int obedit_type = t->data_container->obedit ? t->data_container->obedit->type : -1;
|
|
ViewLayer *view_layer = t->view_layer;
|
|
Base *base_act = view_layer->basact;
|
|
|
|
if (t->spacetype == SPACE_NODE) {
|
|
/* force project off when not supported */
|
|
t->tsnap.project = 0;
|
|
|
|
t->tsnap.mode = ts->snap_node_mode;
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE) {
|
|
/* force project off when not supported */
|
|
t->tsnap.project = 0;
|
|
|
|
t->tsnap.mode = ts->snap_uv_mode;
|
|
}
|
|
else {
|
|
/* force project off when not supported */
|
|
if ((ts->snap_mode & SCE_SNAP_MODE_FACE) == 0) {
|
|
t->tsnap.project = 0;
|
|
}
|
|
|
|
t->tsnap.mode = ts->snap_mode;
|
|
if ((t->tsnap.mode & SCE_SNAP_MODE_INCREMENT) && (ts->snap_flag & SCE_SNAP_ABS_GRID) &&
|
|
(t->mode == TFM_TRANSLATION)) {
|
|
/* Special case in which snap to increments is transformed to snap to grid. */
|
|
t->tsnap.mode &= ~SCE_SNAP_MODE_INCREMENT;
|
|
t->tsnap.mode |= SCE_SNAP_MODE_GRID;
|
|
}
|
|
}
|
|
|
|
if ((t->spacetype == SPACE_VIEW3D || t->spacetype == SPACE_IMAGE) && (t->flag & T_CAMERA) == 0) {
|
|
/* Only 3D view or UV. */
|
|
/* Not with camera selected in camera view. */
|
|
|
|
setSnappingCallback(t);
|
|
|
|
if ((obedit_type != -1) &&
|
|
ELEM(obedit_type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE, OB_MBALL)) {
|
|
/* Edit mode */
|
|
/* Temporary limited to edit mode meshes, armature, curves, metaballs. */
|
|
|
|
if ((obedit_type == OB_MESH) && (t->flag & T_PROP_EDIT)) {
|
|
/* Exclude editmesh if using proportional edit */
|
|
t->tsnap.modeSelect = SNAP_NOT_ACTIVE;
|
|
}
|
|
else {
|
|
t->tsnap.modeSelect = t->tsnap.snap_self ? SNAP_ALL : SNAP_NOT_ACTIVE;
|
|
}
|
|
}
|
|
else if ((obedit_type == -1) && base_act && base_act->object &&
|
|
(base_act->object->mode & OB_MODE_PARTICLE_EDIT)) {
|
|
/* Particles edit mode. */
|
|
t->tsnap.modeSelect = SNAP_ALL;
|
|
}
|
|
else if (obedit_type == -1) {
|
|
/* Object mode */
|
|
if (t->options & (CTX_GPENCIL_STROKES | CTX_CURSOR | CTX_OBMODE_XFORM_OBDATA)) {
|
|
/* In "Edit Strokes" mode,
|
|
* snap tool can perform snap to selected or active objects (see T49632)
|
|
* TODO: perform self snap in gpencil_strokes.
|
|
*
|
|
* When we're moving the origins, allow snapping onto our own geometry (see T69132). */
|
|
t->tsnap.modeSelect = SNAP_ALL;
|
|
}
|
|
else {
|
|
t->tsnap.modeSelect = SNAP_NOT_SELECTED;
|
|
}
|
|
}
|
|
else {
|
|
/* Increment if snap is not possible */
|
|
t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_NODE) {
|
|
setSnappingCallback(t);
|
|
t->tsnap.modeSelect = SNAP_NOT_SELECTED;
|
|
}
|
|
else if (t->spacetype == SPACE_SEQ) {
|
|
/* We do our own snapping currently, so nothing here */
|
|
t->tsnap.mode = SCE_SNAP_MODE_GRID; /* Dummy, should we rather add a NOP mode? */
|
|
}
|
|
else {
|
|
/* Always increment outside of 3D view */
|
|
t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
|
|
}
|
|
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
if (t->tsnap.object_context == NULL) {
|
|
t->tsnap.use_backface_culling = snap_use_backface_culling(t);
|
|
t->tsnap.object_context = ED_transform_snap_object_context_create_view3d(
|
|
t->scene, 0, t->region, t->view);
|
|
|
|
if (t->data_type == TC_MESH_VERTS) {
|
|
/* Ignore elements being transformed. */
|
|
ED_transform_snap_object_context_set_editmesh_callbacks(
|
|
t->tsnap.object_context,
|
|
(bool (*)(BMVert *, void *))BM_elem_cb_check_hflag_disabled,
|
|
bm_edge_is_snap_target,
|
|
bm_face_is_snap_target,
|
|
POINTER_FROM_UINT((BM_ELEM_SELECT | BM_ELEM_HIDDEN)));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void initSnapping(TransInfo *t, wmOperator *op)
|
|
{
|
|
ToolSettings *ts = t->settings;
|
|
short snap_target = t->settings->snap_target;
|
|
|
|
resetSnapping(t);
|
|
|
|
/* if snap property exists */
|
|
if (op && RNA_struct_find_property(op->ptr, "snap") &&
|
|
RNA_struct_property_is_set(op->ptr, "snap")) {
|
|
if (RNA_boolean_get(op->ptr, "snap")) {
|
|
t->modifiers |= MOD_SNAP;
|
|
|
|
if (RNA_struct_property_is_set(op->ptr, "snap_target")) {
|
|
snap_target = RNA_enum_get(op->ptr, "snap_target");
|
|
}
|
|
|
|
if (RNA_struct_property_is_set(op->ptr, "snap_point")) {
|
|
RNA_float_get_array(op->ptr, "snap_point", t->tsnap.snapPoint);
|
|
t->tsnap.status |= SNAP_FORCED | POINT_INIT;
|
|
}
|
|
|
|
/* snap align only defined in specific cases */
|
|
if (RNA_struct_find_property(op->ptr, "snap_align")) {
|
|
t->tsnap.align = RNA_boolean_get(op->ptr, "snap_align");
|
|
RNA_float_get_array(op->ptr, "snap_normal", t->tsnap.snapNormal);
|
|
normalize_v3(t->tsnap.snapNormal);
|
|
}
|
|
|
|
if (RNA_struct_find_property(op->ptr, "use_snap_project")) {
|
|
t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project");
|
|
}
|
|
|
|
if (RNA_struct_find_property(op->ptr, "use_snap_self")) {
|
|
t->tsnap.snap_self = RNA_boolean_get(op->ptr, "use_snap_self");
|
|
}
|
|
}
|
|
}
|
|
/* use scene defaults only when transform is modal */
|
|
else if (t->flag & T_MODAL) {
|
|
if (ELEM(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE, SPACE_NODE)) {
|
|
if (transformModeUseSnap(t) && (ts->snap_flag & SCE_SNAP)) {
|
|
t->modifiers |= MOD_SNAP;
|
|
}
|
|
|
|
t->tsnap.align = ((t->settings->snap_flag & SCE_SNAP_ROTATE) != 0);
|
|
t->tsnap.project = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
|
|
t->tsnap.snap_self = !((t->settings->snap_flag & SCE_SNAP_NO_SELF) != 0);
|
|
t->tsnap.peel = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
|
|
}
|
|
}
|
|
|
|
t->tsnap.target = snap_target;
|
|
|
|
initSnappingMode(t);
|
|
}
|
|
|
|
void freeSnapping(TransInfo *t)
|
|
{
|
|
if (t->tsnap.object_context) {
|
|
ED_transform_snap_object_context_destroy(t->tsnap.object_context);
|
|
t->tsnap.object_context = NULL;
|
|
}
|
|
}
|
|
|
|
static void setSnappingCallback(TransInfo *t)
|
|
{
|
|
t->tsnap.calcSnap = CalcSnapGeometry;
|
|
|
|
switch (t->tsnap.target) {
|
|
case SCE_SNAP_TARGET_CLOSEST:
|
|
t->tsnap.targetSnap = TargetSnapClosest;
|
|
break;
|
|
case SCE_SNAP_TARGET_CENTER:
|
|
if (!ELEM(t->mode, TFM_ROTATION, TFM_RESIZE)) {
|
|
t->tsnap.targetSnap = TargetSnapCenter;
|
|
break;
|
|
}
|
|
/* Can't do TARGET_CENTER with these modes,
|
|
* use TARGET_MEDIAN instead. */
|
|
ATTR_FALLTHROUGH;
|
|
case SCE_SNAP_TARGET_MEDIAN:
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
break;
|
|
case SCE_SNAP_TARGET_ACTIVE:
|
|
t->tsnap.targetSnap = TargetSnapActive;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void addSnapPoint(TransInfo *t)
|
|
{
|
|
/* Currently only 3D viewport works for snapping points. */
|
|
if (t->tsnap.status & POINT_INIT && t->spacetype == SPACE_VIEW3D) {
|
|
TransSnapPoint *p = MEM_callocN(sizeof(TransSnapPoint), "SnapPoint");
|
|
|
|
t->tsnap.selectedPoint = p;
|
|
|
|
copy_v3_v3(p->co, t->tsnap.snapPoint);
|
|
|
|
BLI_addtail(&t->tsnap.points, p);
|
|
|
|
t->tsnap.status |= MULTI_POINTS;
|
|
}
|
|
}
|
|
|
|
eRedrawFlag updateSelectedSnapPoint(TransInfo *t)
|
|
{
|
|
eRedrawFlag status = TREDRAW_NOTHING;
|
|
|
|
if (t->tsnap.status & MULTI_POINTS) {
|
|
TransSnapPoint *p, *closest_p = NULL;
|
|
float dist_min_sq = TRANSFORM_SNAP_MAX_PX;
|
|
const float mval_fl[2] = {t->mval[0], t->mval[1]};
|
|
float screen_loc[2];
|
|
|
|
for (p = t->tsnap.points.first; p; p = p->next) {
|
|
float dist_sq;
|
|
|
|
if (ED_view3d_project_float_global(t->region, p->co, screen_loc, V3D_PROJ_TEST_NOP) !=
|
|
V3D_PROJ_RET_OK) {
|
|
continue;
|
|
}
|
|
|
|
dist_sq = len_squared_v2v2(mval_fl, screen_loc);
|
|
|
|
if (dist_sq < dist_min_sq) {
|
|
closest_p = p;
|
|
dist_min_sq = dist_sq;
|
|
}
|
|
}
|
|
|
|
if (closest_p) {
|
|
if (t->tsnap.selectedPoint != closest_p) {
|
|
status = TREDRAW_HARD;
|
|
}
|
|
|
|
t->tsnap.selectedPoint = closest_p;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
void removeSnapPoint(TransInfo *t)
|
|
{
|
|
if (t->tsnap.status & MULTI_POINTS) {
|
|
updateSelectedSnapPoint(t);
|
|
|
|
if (t->tsnap.selectedPoint) {
|
|
BLI_freelinkN(&t->tsnap.points, t->tsnap.selectedPoint);
|
|
|
|
if (BLI_listbase_is_empty(&t->tsnap.points)) {
|
|
t->tsnap.status &= ~MULTI_POINTS;
|
|
}
|
|
|
|
t->tsnap.selectedPoint = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
void getSnapPoint(const TransInfo *t, float vec[3])
|
|
{
|
|
if (t->tsnap.points.first) {
|
|
TransSnapPoint *p;
|
|
int total = 0;
|
|
|
|
vec[0] = vec[1] = vec[2] = 0;
|
|
|
|
for (p = t->tsnap.points.first; p; p = p->next, total++) {
|
|
add_v3_v3(vec, p->co);
|
|
}
|
|
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
add_v3_v3(vec, t->tsnap.snapPoint);
|
|
total++;
|
|
}
|
|
|
|
mul_v3_fl(vec, 1.0f / total);
|
|
}
|
|
else {
|
|
copy_v3_v3(vec, t->tsnap.snapPoint);
|
|
}
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Calc Snap (Generic)
|
|
* \{ */
|
|
|
|
static void CalcSnapGeometry(TransInfo *t, float *UNUSED(vec))
|
|
{
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
float loc[3];
|
|
float no[3];
|
|
float mval[2];
|
|
bool found = false;
|
|
short snap_elem = 0;
|
|
float dist_px = SNAP_MIN_DISTANCE; /* Use a user defined value here. */
|
|
|
|
mval[0] = t->mval[0];
|
|
mval[1] = t->mval[1];
|
|
|
|
if (t->tsnap.mode & (SCE_SNAP_MODE_VERTEX | SCE_SNAP_MODE_EDGE | SCE_SNAP_MODE_FACE |
|
|
SCE_SNAP_MODE_EDGE_MIDPOINT | SCE_SNAP_MODE_EDGE_PERPENDICULAR)) {
|
|
zero_v3(no); /* objects won't set this */
|
|
snap_elem = snapObjectsTransform(t, mval, &dist_px, loc, no);
|
|
found = snap_elem != 0;
|
|
}
|
|
if ((found == false) && (t->tsnap.mode & SCE_SNAP_MODE_VOLUME)) {
|
|
found = peelObjectsTransform(
|
|
t, mval, (t->settings->snap_flag & SCE_SNAP_PEEL_OBJECT) != 0, loc, no, NULL);
|
|
|
|
if (found) {
|
|
snap_elem = SCE_SNAP_MODE_VOLUME;
|
|
}
|
|
}
|
|
|
|
if (found == true) {
|
|
copy_v3_v3(t->tsnap.snapPoint, loc);
|
|
copy_v3_v3(t->tsnap.snapNormal, no);
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
|
|
t->tsnap.snapElem = (char)snap_elem;
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE && t->obedit_type == OB_MESH) {
|
|
if (t->tsnap.mode & SCE_SNAP_MODE_VERTEX) {
|
|
float co[2];
|
|
|
|
UI_view2d_region_to_view(&t->region->v2d, t->mval[0], t->mval[1], &co[0], &co[1]);
|
|
|
|
uint objects_len = 0;
|
|
Object **objects = BKE_view_layer_array_from_objects_in_edit_mode_unique_data_with_uvs(
|
|
t->view_layer, NULL, &objects_len);
|
|
|
|
float dist_sq = FLT_MAX;
|
|
if (ED_uvedit_nearest_uv_multi(
|
|
t->scene, objects, objects_len, co, &dist_sq, t->tsnap.snapPoint)) {
|
|
t->tsnap.snapPoint[0] *= t->aspect[0];
|
|
t->tsnap.snapPoint[1] *= t->aspect[1];
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
MEM_freeN(objects);
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_NODE) {
|
|
if (t->tsnap.mode & (SCE_SNAP_MODE_NODE_X | SCE_SNAP_MODE_NODE_Y)) {
|
|
float loc[2];
|
|
float dist_px = SNAP_MIN_DISTANCE; /* Use a user defined value here. */
|
|
char node_border;
|
|
|
|
if (snapNodesTransform(t, t->mval, loc, &dist_px, &node_border)) {
|
|
copy_v2_v2(t->tsnap.snapPoint, loc);
|
|
t->tsnap.snapNodeBorder = node_border;
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Target
|
|
* \{ */
|
|
|
|
static void TargetSnapOffset(TransInfo *t, TransData *td)
|
|
{
|
|
if (t->spacetype == SPACE_NODE && td != NULL) {
|
|
bNode *node = td->extra;
|
|
char border = t->tsnap.snapNodeBorder;
|
|
float width = BLI_rctf_size_x(&node->totr);
|
|
float height = BLI_rctf_size_y(&node->totr);
|
|
|
|
#ifdef USE_NODE_CENTER
|
|
if (border & NODE_LEFT) {
|
|
t->tsnap.snapTarget[0] -= 0.5f * width;
|
|
}
|
|
if (border & NODE_RIGHT) {
|
|
t->tsnap.snapTarget[0] += 0.5f * width;
|
|
}
|
|
if (border & NODE_BOTTOM) {
|
|
t->tsnap.snapTarget[1] -= 0.5f * height;
|
|
}
|
|
if (border & NODE_TOP) {
|
|
t->tsnap.snapTarget[1] += 0.5f * height;
|
|
}
|
|
#else
|
|
if (border & NODE_LEFT) {
|
|
t->tsnap.snapTarget[0] -= 0.0f;
|
|
}
|
|
if (border & NODE_RIGHT) {
|
|
t->tsnap.snapTarget[0] += width;
|
|
}
|
|
if (border & NODE_BOTTOM) {
|
|
t->tsnap.snapTarget[1] -= height;
|
|
}
|
|
if (border & NODE_TOP) {
|
|
t->tsnap.snapTarget[1] += 0.0f;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void TargetSnapCenter(TransInfo *t)
|
|
{
|
|
/* Only need to calculate once */
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
copy_v3_v3(t->tsnap.snapTarget, t->center_global);
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapActive(TransInfo *t)
|
|
{
|
|
/* Only need to calculate once */
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
if (calculateCenterActive(t, true, t->tsnap.snapTarget)) {
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
/* No active, default to median */
|
|
else {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
TargetSnapMedian(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void TargetSnapMedian(TransInfo *t)
|
|
{
|
|
/* Only need to calculate once. */
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
int i_accum = 0;
|
|
|
|
t->tsnap.snapTarget[0] = 0;
|
|
t->tsnap.snapTarget[1] = 0;
|
|
t->tsnap.snapTarget[2] = 0;
|
|
|
|
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
|
TransData *td = tc->data;
|
|
int i;
|
|
float v[3];
|
|
zero_v3(v);
|
|
|
|
for (i = 0; i < tc->data_len && td->flag & TD_SELECTED; i++, td++) {
|
|
add_v3_v3(v, td->center);
|
|
}
|
|
|
|
if (i == 0) {
|
|
/* Is this possible? */
|
|
continue;
|
|
}
|
|
|
|
mul_v3_fl(v, 1.0 / i);
|
|
|
|
if (tc->use_local_mat) {
|
|
mul_m4_v3(tc->mat, v);
|
|
}
|
|
|
|
add_v3_v3(t->tsnap.snapTarget, v);
|
|
i_accum++;
|
|
}
|
|
|
|
mul_v3_fl(t->tsnap.snapTarget, 1.0 / i_accum);
|
|
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapClosest(TransInfo *t)
|
|
{
|
|
/* Only valid if a snap point has been selected. */
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
float dist_closest = 0.0f;
|
|
TransData *closest = NULL;
|
|
|
|
/* Object mode */
|
|
if (t->flag & T_OBJECT) {
|
|
int i;
|
|
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
|
TransData *td = tc->data;
|
|
for (td = tc->data, i = 0; i < tc->data_len && td->flag & TD_SELECTED; i++, td++) {
|
|
const BoundBox *bb = NULL;
|
|
|
|
if ((t->options & CTX_OBMODE_XFORM_OBDATA) == 0) {
|
|
bb = BKE_object_boundbox_get(td->ob);
|
|
}
|
|
|
|
/* use boundbox if possible */
|
|
if (bb) {
|
|
int j;
|
|
|
|
for (j = 0; j < 8; j++) {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, bb->vec[j]);
|
|
mul_m4_v3(td->ext->obmat, loc);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest))) {
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
dist_closest = dist;
|
|
}
|
|
}
|
|
}
|
|
/* use element center otherwise */
|
|
else {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest))) {
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
|
TransData *td = tc->data;
|
|
int i;
|
|
for (i = 0; i < tc->data_len && td->flag & TD_SELECTED; i++, td++) {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
if (tc->use_local_mat) {
|
|
mul_m4_v3(tc->mat, loc);
|
|
}
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest))) {
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
dist_closest = dist;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TargetSnapOffset(t, closest);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Snap Objects
|
|
* \{ */
|
|
|
|
short snapObjectsTransform(
|
|
TransInfo *t, const float mval[2], float *dist_px, float r_loc[3], float r_no[3])
|
|
{
|
|
float *target = (t->tsnap.status & TARGET_INIT) ? t->tsnap.snapTarget : t->center_global;
|
|
return ED_transform_snap_object_project_view3d_ex(
|
|
t->tsnap.object_context,
|
|
t->depsgraph,
|
|
t->settings->snap_mode,
|
|
&(const struct SnapObjectParams){
|
|
.snap_select = t->tsnap.modeSelect,
|
|
.use_object_edit_cage = (t->flag & T_EDIT) != 0,
|
|
.use_occlusion_test = t->settings->snap_mode != SCE_SNAP_MODE_FACE,
|
|
.use_backface_culling = t->tsnap.use_backface_culling,
|
|
},
|
|
mval,
|
|
target,
|
|
dist_px,
|
|
r_loc,
|
|
r_no,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Peeling
|
|
* \{ */
|
|
|
|
bool peelObjectsTransform(TransInfo *t,
|
|
const float mval[2],
|
|
const bool use_peel_object,
|
|
/* return args */
|
|
float r_loc[3],
|
|
float r_no[3],
|
|
float *r_thickness)
|
|
{
|
|
ListBase depths_peel = {0};
|
|
ED_transform_snap_object_project_all_view3d_ex(
|
|
t->tsnap.object_context,
|
|
t->depsgraph,
|
|
&(const struct SnapObjectParams){
|
|
.snap_select = t->tsnap.modeSelect,
|
|
.use_object_edit_cage = (t->flag & T_EDIT) != 0,
|
|
},
|
|
mval,
|
|
-1.0f,
|
|
false,
|
|
&depths_peel);
|
|
|
|
if (!BLI_listbase_is_empty(&depths_peel)) {
|
|
/* At the moment we only use the hits of the first object */
|
|
struct SnapObjectHitDepth *hit_min = depths_peel.first;
|
|
for (struct SnapObjectHitDepth *iter = hit_min->next; iter; iter = iter->next) {
|
|
if (iter->depth < hit_min->depth) {
|
|
hit_min = iter;
|
|
}
|
|
}
|
|
struct SnapObjectHitDepth *hit_max = NULL;
|
|
|
|
if (use_peel_object) {
|
|
/* if peeling objects, take the first and last from each object */
|
|
hit_max = hit_min;
|
|
for (struct SnapObjectHitDepth *iter = depths_peel.first; iter; iter = iter->next) {
|
|
if ((iter->depth > hit_max->depth) && (iter->ob_uuid == hit_min->ob_uuid)) {
|
|
hit_max = iter;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* otherwise, pair first with second and so on */
|
|
for (struct SnapObjectHitDepth *iter = depths_peel.first; iter; iter = iter->next) {
|
|
if ((iter != hit_min) && (iter->ob_uuid == hit_min->ob_uuid)) {
|
|
if (hit_max == NULL) {
|
|
hit_max = iter;
|
|
}
|
|
else if (iter->depth < hit_max->depth) {
|
|
hit_max = iter;
|
|
}
|
|
}
|
|
}
|
|
/* in this case has only one hit. treat as raycast */
|
|
if (hit_max == NULL) {
|
|
hit_max = hit_min;
|
|
}
|
|
}
|
|
|
|
mid_v3_v3v3(r_loc, hit_min->co, hit_max->co);
|
|
|
|
if (r_thickness) {
|
|
*r_thickness = hit_max->depth - hit_min->depth;
|
|
}
|
|
|
|
/* XXX, is there a correct normal in this case ???, for now just z up */
|
|
r_no[0] = 0.0;
|
|
r_no[1] = 0.0;
|
|
r_no[2] = 1.0;
|
|
|
|
BLI_freelistN(&depths_peel);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name snap Nodes
|
|
* \{ */
|
|
|
|
static bool snapNodeTest(View2D *v2d, bNode *node, eSnapSelect snap_select)
|
|
{
|
|
/* node is use for snapping only if a) snap mode matches and b) node is inside the view */
|
|
return ((snap_select == SNAP_NOT_SELECTED && !(node->flag & NODE_SELECT)) ||
|
|
(snap_select == SNAP_ALL && !(node->flag & NODE_ACTIVE))) &&
|
|
(node->totr.xmin < v2d->cur.xmax && node->totr.xmax > v2d->cur.xmin &&
|
|
node->totr.ymin < v2d->cur.ymax && node->totr.ymax > v2d->cur.ymin);
|
|
}
|
|
|
|
static NodeBorder snapNodeBorder(int snap_node_mode)
|
|
{
|
|
NodeBorder flag = 0;
|
|
if (snap_node_mode & SCE_SNAP_MODE_NODE_X) {
|
|
flag |= NODE_LEFT | NODE_RIGHT;
|
|
}
|
|
if (snap_node_mode & SCE_SNAP_MODE_NODE_Y) {
|
|
flag |= NODE_TOP | NODE_BOTTOM;
|
|
}
|
|
return flag;
|
|
}
|
|
|
|
static bool snapNode(ToolSettings *ts,
|
|
SpaceNode *UNUSED(snode),
|
|
ARegion *region,
|
|
bNode *node,
|
|
const int mval[2],
|
|
float r_loc[2],
|
|
float *r_dist_px,
|
|
char *r_node_border)
|
|
{
|
|
View2D *v2d = ®ion->v2d;
|
|
NodeBorder border = snapNodeBorder(ts->snap_node_mode);
|
|
bool retval = false;
|
|
rcti totr;
|
|
int new_dist;
|
|
|
|
UI_view2d_view_to_region_rcti(v2d, &node->totr, &totr);
|
|
|
|
if (border & NODE_LEFT) {
|
|
new_dist = abs(totr.xmin - mval[0]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, totr.xmin, mval[1], &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_LEFT;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_RIGHT) {
|
|
new_dist = abs(totr.xmax - mval[0]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, totr.xmax, mval[1], &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_RIGHT;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_BOTTOM) {
|
|
new_dist = abs(totr.ymin - mval[1]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, mval[0], totr.ymin, &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_BOTTOM;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_TOP) {
|
|
new_dist = abs(totr.ymax - mval[1]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, mval[0], totr.ymax, &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_TOP;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static bool snapNodes(ToolSettings *ts,
|
|
SpaceNode *snode,
|
|
ARegion *region,
|
|
const int mval[2],
|
|
eSnapSelect snap_select,
|
|
float r_loc[2],
|
|
float *r_dist_px,
|
|
char *r_node_border)
|
|
{
|
|
bNodeTree *ntree = snode->edittree;
|
|
bNode *node;
|
|
bool retval = false;
|
|
|
|
*r_node_border = 0;
|
|
|
|
for (node = ntree->nodes.first; node; node = node->next) {
|
|
if (snapNodeTest(®ion->v2d, node, snap_select)) {
|
|
retval |= snapNode(ts, snode, region, node, mval, r_loc, r_dist_px, r_node_border);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
bool snapNodesTransform(
|
|
TransInfo *t, const int mval[2], float r_loc[2], float *r_dist_px, char *r_node_border)
|
|
{
|
|
return snapNodes(t->settings,
|
|
t->area->spacedata.first,
|
|
t->region,
|
|
mval,
|
|
t->tsnap.modeSelect,
|
|
r_loc,
|
|
r_dist_px,
|
|
r_node_border);
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name snap Frames
|
|
* \{ */
|
|
|
|
/* This function is used by Animation Editor specific transform functions to do
|
|
* the Snap Keyframe to Nearest Frame/Marker
|
|
*/
|
|
void snapFrameTransform(TransInfo *t,
|
|
const eAnimEdit_AutoSnap autosnap,
|
|
const bool is_frame_value,
|
|
const float delta,
|
|
float *r_val)
|
|
{
|
|
double val = delta;
|
|
switch (autosnap) {
|
|
case SACTSNAP_STEP:
|
|
case SACTSNAP_FRAME:
|
|
val = floor(val + 0.5);
|
|
break;
|
|
case SACTSNAP_MARKER:
|
|
/* snap to nearest marker */
|
|
/* TODO: need some more careful checks for where data comes from. */
|
|
val = ED_markers_find_nearest_marker_time(&t->scene->markers, (float)val);
|
|
break;
|
|
case SACTSNAP_SECOND:
|
|
case SACTSNAP_TSTEP: {
|
|
/* second step */
|
|
const Scene *scene = t->scene;
|
|
const double secf = FPS;
|
|
val = floor((val / secf) + 0.5);
|
|
if (is_frame_value) {
|
|
val *= secf;
|
|
}
|
|
break;
|
|
}
|
|
case SACTSNAP_OFF: {
|
|
break;
|
|
}
|
|
}
|
|
*r_val = (float)val;
|
|
}
|
|
|
|
/*================================================================*/
|
|
|
|
void snapSequenceBounds(TransInfo *t, const int mval[2])
|
|
{
|
|
/* Reuse increment, strictly speaking could be another snap mode, but leave as is. */
|
|
if (!(t->modifiers & MOD_SNAP_INVERT)) {
|
|
return;
|
|
}
|
|
|
|
/* Convert to frame range. */
|
|
float xmouse, ymouse;
|
|
UI_view2d_region_to_view(&t->region->v2d, mval[0], mval[1], &xmouse, &ymouse);
|
|
const int frame_curr = round_fl_to_int(xmouse);
|
|
|
|
/* Now find the closest sequence. */
|
|
const int frame_near = BKE_sequencer_find_next_prev_edit(
|
|
t->scene, frame_curr, SEQ_SIDE_BOTH, true, false, true);
|
|
|
|
const int frame_snap = transform_convert_sequencer_get_snap_bound(t);
|
|
t->values[0] = frame_near - frame_snap;
|
|
}
|
|
|
|
static void snap_grid_apply(
|
|
TransInfo *t, const int max_index, const float grid_dist, const float loc[3], float r_out[3])
|
|
{
|
|
BLI_assert(max_index <= 2);
|
|
const float *center_global = t->center_global;
|
|
const float *asp = t->aspect;
|
|
|
|
/* use a fallback for cursor selection,
|
|
* this isn't useful as a global center for absolute grid snapping
|
|
* since its not based on the position of the selection. */
|
|
if (t->around == V3D_AROUND_CURSOR) {
|
|
const TransCenterData *cd = transformCenter_from_type(t, V3D_AROUND_CENTER_MEDIAN);
|
|
center_global = cd->global;
|
|
}
|
|
|
|
float in[3];
|
|
if (t->con.mode & CON_APPLY) {
|
|
BLI_assert(t->tsnap.snapElem == 0);
|
|
t->con.applyVec(t, NULL, NULL, loc, in);
|
|
}
|
|
else {
|
|
copy_v3_v3(in, loc);
|
|
}
|
|
|
|
for (int i = 0; i <= max_index; i++) {
|
|
const float iter_fac = grid_dist * asp[i];
|
|
r_out[i] = iter_fac * roundf((in[i] + center_global[i]) / iter_fac) - center_global[i];
|
|
}
|
|
}
|
|
|
|
bool transform_snap_grid(TransInfo *t, float *val)
|
|
{
|
|
if (!activeSnap(t)) {
|
|
return false;
|
|
}
|
|
|
|
if ((!(t->tsnap.mode & SCE_SNAP_MODE_GRID)) || validSnap(t)) {
|
|
/* Don't do grid snapping if there is a valid snap point. */
|
|
return false;
|
|
}
|
|
|
|
if (t->spacetype != SPACE_VIEW3D) {
|
|
return false;
|
|
}
|
|
|
|
if (t->mode != TFM_TRANSLATION) {
|
|
return false;
|
|
}
|
|
|
|
float grid_dist = (t->modifiers & MOD_PRECISION) ? t->snap[1] : t->snap[0];
|
|
|
|
/* Early bailing out if no need to snap */
|
|
if (grid_dist == 0.0f) {
|
|
return false;
|
|
}
|
|
|
|
snap_grid_apply(t, t->idx_max, grid_dist, val, val);
|
|
t->tsnap.snapElem = SCE_SNAP_MODE_GRID;
|
|
return true;
|
|
}
|
|
|
|
static void snap_increment_apply_ex(TransInfo *UNUSED(t),
|
|
const int max_index,
|
|
const float increment_val,
|
|
const float aspect[3],
|
|
const float loc[3],
|
|
float r_out[3])
|
|
{
|
|
/* relative snapping in fixed increments */
|
|
for (int i = 0; i <= max_index; i++) {
|
|
const float iter_fac = increment_val * aspect[i];
|
|
r_out[i] = iter_fac * roundf(loc[i] / iter_fac);
|
|
}
|
|
}
|
|
|
|
static void snap_increment_apply(TransInfo *t,
|
|
int max_index,
|
|
const float increment_dist,
|
|
float *r_val)
|
|
{
|
|
BLI_assert((t->tsnap.mode & SCE_SNAP_MODE_INCREMENT) || doForceIncrementSnap(t));
|
|
BLI_assert(max_index <= 2);
|
|
|
|
/* Early bailing out if no need to snap */
|
|
if (increment_dist == 0.0f) {
|
|
return;
|
|
}
|
|
|
|
float asp_local[3] = {1, 1, 1};
|
|
const bool use_aspect = ELEM(t->mode, TFM_TRANSLATION);
|
|
const float *asp = use_aspect ? t->aspect : asp_local;
|
|
|
|
if (use_aspect) {
|
|
/* custom aspect for fcurve */
|
|
if (t->spacetype == SPACE_GRAPH) {
|
|
View2D *v2d = &t->region->v2d;
|
|
Scene *scene = t->scene;
|
|
SpaceGraph *sipo = t->area->spacedata.first;
|
|
asp_local[0] = UI_view2d_grid_resolution_x__frames_or_seconds(
|
|
v2d, scene, sipo->flag & SIPO_DRAWTIME);
|
|
asp_local[1] = UI_view2d_grid_resolution_y__values(v2d);
|
|
asp = asp_local;
|
|
}
|
|
}
|
|
|
|
snap_increment_apply_ex(t, max_index, increment_dist, asp, r_val, r_val);
|
|
}
|
|
|
|
bool transform_snap_increment(TransInfo *t, float *val)
|
|
{
|
|
if (!activeSnap(t)) {
|
|
return false;
|
|
}
|
|
|
|
if (!(t->tsnap.mode & SCE_SNAP_MODE_INCREMENT) && !doForceIncrementSnap(t)) {
|
|
return false;
|
|
}
|
|
|
|
if (t->spacetype != SPACE_VIEW3D && validSnap(t)) {
|
|
/* Only do something if using absolute or incremental grid snapping
|
|
* and there is no valid snap point. */
|
|
return false;
|
|
}
|
|
|
|
float increment_dist = (t->modifiers & MOD_PRECISION) ? t->snap[1] : t->snap[0];
|
|
|
|
snap_increment_apply(t, t->idx_max, increment_dist, val);
|
|
return true;
|
|
}
|
|
|
|
/** \} */
|
|
|
|
/* -------------------------------------------------------------------- */
|
|
/** \name Generic callbacks
|
|
* \{ */
|
|
|
|
float transform_snap_distance_len_squared_fn(TransInfo *UNUSED(t),
|
|
const float p1[3],
|
|
const float p2[3])
|
|
{
|
|
return len_squared_v3v3(p1, p2);
|
|
}
|
|
|
|
/** \} */
|