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Diffstat (limited to 'source/blender/editors/mesh/loopcut.c')
| -rw-r--r-- | source/blender/editors/mesh/loopcut.c | 474 |
1 files changed, 474 insertions, 0 deletions
diff --git a/source/blender/editors/mesh/loopcut.c b/source/blender/editors/mesh/loopcut.c new file mode 100644 index 00000000000..e58025ac6ce --- /dev/null +++ b/source/blender/editors/mesh/loopcut.c @@ -0,0 +1,474 @@ +/** + * $Id: + * + * ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Original Code is Copyright (C) 2007 Blender Foundation. + * All rights reserved. + * + * + * Contributor(s): Joseph Eagar, Joshua Leung + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include <float.h> +#define _USE_MATH_DEFINES +#include <math.h> +#include <string.h> +#include <ctype.h> +#include <stdio.h> + +#include "DNA_ID.h" +#include "DNA_screen_types.h" +#include "DNA_scene_types.h" +#include "DNA_userdef_types.h" +#include "DNA_windowmanager_types.h" +#include "DNA_object_types.h" + +#include "MEM_guardedalloc.h" + +#include "PIL_time.h" + +#include "BLI_blenlib.h" +#include "BLI_dynstr.h" /*for WM_operator_pystring */ +#include "BLI_editVert.h" + +#include "BKE_blender.h" +#include "BKE_context.h" +#include "BKE_depsgraph.h" +#include "BKE_scene.h" +#include "BKE_utildefines.h" +#include "BKE_mesh.h" + +#include "BIF_gl.h" +#include "BIF_glutil.h" /* for paint cursor */ + +#include "IMB_imbuf_types.h" + +#include "ED_screen.h" +#include "ED_util.h" +#include "ED_space_api.h" +#include "ED_view3d.h" +#include "ED_mesh.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "mesh_intern.h" + +/* ringsel operator */ + +/* struct for properties used while drawing */ +typedef struct tringselOpData { + ARegion *ar; /* region that ringsel was activated in */ + void *draw_handle; /* for drawing preview loop */ + + float (*edges)[2][3]; + int totedge; + + ViewContext vc; + + Object *ob; + EditMesh *em; + EditEdge *eed; + + int extend; + int do_cut; +} tringselOpData; + +/* modal loop selection drawing callback */ +static void ringsel_draw(const bContext *C, ARegion *ar, void *arg) +{ + int i; + tringselOpData *lcd = arg; + + glDisable(GL_DEPTH_TEST); + + glPushMatrix(); + glMultMatrixf(lcd->ob->obmat); + + glColor3ub(255, 0, 255); + glBegin(GL_LINES); + for (i=0; i<lcd->totedge; i++) { + glVertex3fv(lcd->edges[i][0]); + glVertex3fv(lcd->edges[i][1]); + } + glEnd(); + + glPopMatrix(); + glEnable(GL_DEPTH_TEST); +} + +static void edgering_sel(tringselOpData *lcd, int previewlines, int select) +{ + EditMesh *em = lcd->em; + EditEdge *startedge = lcd->eed; + EditEdge *eed; + EditFace *efa; + EditVert *v[2][2]; + float (*edges)[2][3] = NULL; + V_DYNDECLARE(edges); + float co[2][3]; + int looking=1, i, tot=0; + + if (!startedge) + return; + + if (lcd->edges) { + MEM_freeN(lcd->edges); + lcd->edges = NULL; + lcd->totedge = 0; + } + + if (!lcd->extend) { + EM_clear_flag_all(lcd->em, SELECT); + } + + /* in eed->f1 we put the valence (amount of faces in edge) */ + /* in eed->f2 we put tagged flag as correct loop */ + /* in efa->f1 we put tagged flag as correct to select */ + + for(eed= em->edges.first; eed; eed= eed->next) { + eed->f1= 0; + eed->f2= 0; + } + + for(efa= em->faces.first; efa; efa= efa->next) { + efa->f1= 0; + if(efa->h==0) { + efa->e1->f1++; + efa->e2->f1++; + efa->e3->f1++; + if(efa->e4) efa->e4->f1++; + } + } + + // tag startedge OK + startedge->f2= 1; + + while(looking) { + looking= 0; + + for(efa= em->faces.first; efa; efa= efa->next) { + if(efa->e4 && efa->f1==0 && efa->h == 0) { // not done quad + if(efa->e1->f1<=2 && efa->e2->f1<=2 && efa->e3->f1<=2 && efa->e4->f1<=2) { // valence ok + + // if edge tagged, select opposing edge and mark face ok + if(efa->e1->f2) { + efa->e3->f2= 1; + efa->f1= 1; + looking= 1; + } + else if(efa->e2->f2) { + efa->e4->f2= 1; + efa->f1= 1; + looking= 1; + } + if(efa->e3->f2) { + efa->e1->f2= 1; + efa->f1= 1; + looking= 1; + } + if(efa->e4->f2) { + efa->e2->f2= 1; + efa->f1= 1; + looking= 1; + } + } + } + } + } + + if(previewlines > 0 && !select){ + for(efa= em->faces.first; efa; efa= efa->next) { + if(efa->v4 == NULL) { continue; } + if(efa->h == 0){ + if(efa->e1->f2 == 1){ + if(efa->e1->h == 1 || efa->e3->h == 1 ) + continue; + + v[0][0] = efa->v1; + v[0][1] = efa->v2; + v[1][0] = efa->v4; + v[1][1] = efa->v3; + } else if(efa->e2->f2 == 1){ + if(efa->e2->h == 1 || efa->e4->h == 1) + continue; + v[0][0] = efa->v2; + v[0][1] = efa->v3; + v[1][0] = efa->v1; + v[1][1] = efa->v4; + } else { continue; } + + for(i=1;i<=previewlines;i++){ + co[0][0] = (v[0][1]->co[0] - v[0][0]->co[0])*(i/((float)previewlines+1))+v[0][0]->co[0]; + co[0][1] = (v[0][1]->co[1] - v[0][0]->co[1])*(i/((float)previewlines+1))+v[0][0]->co[1]; + co[0][2] = (v[0][1]->co[2] - v[0][0]->co[2])*(i/((float)previewlines+1))+v[0][0]->co[2]; + + co[1][0] = (v[1][1]->co[0] - v[1][0]->co[0])*(i/((float)previewlines+1))+v[1][0]->co[0]; + co[1][1] = (v[1][1]->co[1] - v[1][0]->co[1])*(i/((float)previewlines+1))+v[1][0]->co[1]; + co[1][2] = (v[1][1]->co[2] - v[1][0]->co[2])*(i/((float)previewlines+1))+v[1][0]->co[2]; + + V_GROW(edges); + VECCOPY(edges[tot][0], co[0]); + VECCOPY(edges[tot][1], co[1]); + tot++; + } + } + } + } else { + select = (startedge->f & SELECT) == 0; + + /* select the edges */ + for(eed= em->edges.first; eed; eed= eed->next) { + if(eed->f2) EM_select_edge(eed, select); + } + } + + lcd->edges = edges; + lcd->totedge = tot; +} + +static void ringsel_find_edge(tringselOpData *lcd, const bContext *C, ARegion *ar, int cuts) +{ + if (lcd->eed) + edgering_sel(lcd, cuts, 0); +} + +static void ringsel_finish(bContext *C, wmOperator *op) +{ + tringselOpData *lcd= op->customdata; + int cuts= RNA_int_get(op->ptr,"number_cuts"); + + if (lcd->eed) { + edgering_sel(lcd, cuts, 1); + if (lcd->do_cut) { + EditMesh *em = BKE_mesh_get_editmesh(lcd->ob->data); + esubdivideflag(lcd->ob, em, SELECT, 0.0f, 0.0f, 0, cuts, SUBDIV_SELECT_LOOPCUT); + + DAG_id_flush_update(lcd->ob->data, OB_RECALC_DATA); + } + WM_event_add_notifier(C, NC_GEOM|ND_DATA, lcd->ob->data); + } +} + +/* called when modal loop selection is done... */ +static void ringsel_exit (bContext *C, wmOperator *op) +{ + tringselOpData *lcd= op->customdata; + + /* deactivate the extra drawing stuff in 3D-View */ + ED_region_draw_cb_exit(lcd->ar->type, lcd->draw_handle); + + if (lcd->edges) + MEM_freeN(lcd->edges); + + ED_region_tag_redraw(lcd->ar); + + /* free the custom data */ + MEM_freeN(lcd); + op->customdata= NULL; +} + +/* called when modal loop selection gets set up... */ +static int ringsel_init (bContext *C, wmOperator *op, int do_cut) +{ + tringselOpData *lcd; + + /* alloc new customdata */ + lcd= op->customdata= MEM_callocN(sizeof(tringselOpData), "ringsel Modal Op Data"); + + /* assign the drawing handle for drawing preview line... */ + lcd->ar= CTX_wm_region(C); + lcd->draw_handle= ED_region_draw_cb_activate(lcd->ar->type, ringsel_draw, lcd, REGION_DRAW_POST); + lcd->ob = CTX_data_edit_object(C); + lcd->em= BKE_mesh_get_editmesh((Mesh *)lcd->ob->data); + lcd->extend = do_cut ? 0 : RNA_boolean_get(op->ptr, "extend"); + lcd->do_cut = do_cut; + em_setup_viewcontext(C, &lcd->vc); + + ED_region_tag_redraw(lcd->ar); + + return 1; +} + +static int ringsel_cancel (bContext *C, wmOperator *op) +{ + /* this is just a wrapper around exit() */ + ringsel_exit(C, op); + return OPERATOR_CANCELLED; +} + +static int ringsel_invoke (bContext *C, wmOperator *op, wmEvent *evt) +{ + tringselOpData *lcd; + EditEdge *edge; + int dist = 75; + + view3d_operator_needs_opengl(C); + + if (!ringsel_init(C, op, 0)) + return OPERATOR_CANCELLED; + + /* add a modal handler for this operator - handles loop selection */ + WM_event_add_modal_handler(C, op); + + lcd = op->customdata; + lcd->vc.mval[0] = evt->mval[0]; + lcd->vc.mval[1] = evt->mval[1]; + + edge = findnearestedge(&lcd->vc, &dist); + if (edge != lcd->eed) { + lcd->eed = edge; + ringsel_find_edge(lcd, C, lcd->ar, 1); + } + + return OPERATOR_RUNNING_MODAL; +} + + +static int ringcut_invoke (bContext *C, wmOperator *op, wmEvent *evt) +{ + tringselOpData *lcd; + EditEdge *edge; + int dist = 75; + + view3d_operator_needs_opengl(C); + + if (!ringsel_init(C, op, 1)) + return OPERATOR_CANCELLED; + + /* add a modal handler for this operator - handles loop selection */ + WM_event_add_modal_handler(C, op); + + lcd = op->customdata; + lcd->vc.mval[0] = evt->mval[0]; + lcd->vc.mval[1] = evt->mval[1]; + + edge = findnearestedge(&lcd->vc, &dist); + if (edge != lcd->eed) { + lcd->eed = edge; + ringsel_find_edge(lcd, C, lcd->ar, 1); + } + + return OPERATOR_RUNNING_MODAL; +} + +static int ringsel_modal (bContext *C, wmOperator *op, wmEvent *event) +{ + int cuts= RNA_int_get(op->ptr,"number_cuts"); + tringselOpData *lcd= op->customdata; + + view3d_operator_needs_opengl(C); + + + switch (event->type) { + case RIGHTMOUSE: + case LEFTMOUSE: /* confirm */ // XXX hardcoded + if (event->val == KM_RELEASE) { + /* finish */ + ED_region_tag_redraw(lcd->ar); + + ringsel_finish(C, op); + ringsel_exit(C, op); + + return OPERATOR_FINISHED; + } + + ED_region_tag_redraw(lcd->ar); + break; + case WHEELUPMOUSE: /* change number of cuts */ + cuts++; + RNA_int_set(op->ptr,"number_cuts",cuts); + ringsel_find_edge(lcd, C, lcd->ar, cuts); + + ED_region_tag_redraw(lcd->ar); + break; + case WHEELDOWNMOUSE: /* change number of cuts */ + cuts=MAX2(cuts-1,1); + RNA_int_set(op->ptr,"number_cuts",cuts); + ringsel_find_edge(lcd, C, lcd->ar,cuts); + + ED_region_tag_redraw(lcd->ar); + break; + case MOUSEMOVE: { /* mouse moved somewhere to select another loop */ + int dist = 75; + EditEdge *edge; + + lcd->vc.mval[0] = event->mval[0]; + lcd->vc.mval[1] = event->mval[1]; + edge = findnearestedge(&lcd->vc, &dist); + + if (edge != lcd->eed) { + lcd->eed = edge; + ringsel_find_edge(lcd, C, lcd->ar, cuts); + } + + ED_region_tag_redraw(lcd->ar); + break; + } + } + + /* keep going until the user confirms */ + return OPERATOR_RUNNING_MODAL; +} + +void MESH_OT_edgering_select (wmOperatorType *ot) +{ + /* description */ + ot->name= "Edge Ring Select"; + ot->idname= "MESH_OT_edgering_select"; + ot->description= "Select an edge ring"; + + /* callbacks */ + ot->invoke= ringsel_invoke; + ot->modal= ringsel_modal; + ot->cancel= ringsel_cancel; + ot->poll= ED_operator_editmesh; + + /* flags */ + ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO|OPTYPE_BLOCKING; + + RNA_def_boolean(ot->srna, "extend", 0, "Extend", "Extend the selection"); +} + +void MESH_OT_loopcut (wmOperatorType *ot) +{ + /* description */ + ot->name= "Loop Cut"; + ot->idname= "MESH_OT_loopcut"; + ot->description= "Add a new loop between existing loops."; + + /* callbacks */ + ot->invoke= ringcut_invoke; + ot->modal= ringsel_modal; + ot->cancel= ringsel_cancel; + ot->poll= ED_operator_editmesh; + + /* flags */ + ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO|OPTYPE_BLOCKING; + + /* properties */ + RNA_def_int(ot->srna, "number_cuts", 1, 1, 10, "Number of Cuts", "", 1, INT_MAX); +} |