1 #define __SP_LIVAROT_C__
2 /*
3 * splivarot.cpp
4 * Inkscape
5 *
6 * Created by fred on Fri Dec 05 2003.
7 * tweaked endlessly by bulia byak <buliabyak@users.sf.net>
8 * public domain
9 *
10 */
12 /*
13 * contains lots of stitched pieces of path-chemistry.c
14 */
16 #ifdef HAVE_CONFIG_H
17 # include <config.h>
18 #endif
20 #include "xml/repr.h"
21 #include "svg/svg.h"
22 #include "sp-path.h"
23 #include "sp-text.h"
24 #include "sp-item-group.h"
25 #include "style.h"
26 #include "inkscape.h"
27 #include "document.h"
28 #include "message-stack.h"
29 #include "selection.h"
30 #include "desktop-handles.h"
31 #include "desktop.h"
32 #include "display/canvas-bpath.h"
33 #include "display/curve.h"
34 #include <glibmm/i18n.h>
35 #include "prefs-utils.h"
37 #include "libnr/n-art-bpath.h"
38 #include "libnr/nr-path.h"
39 #include "xml/repr.h"
40 #include "xml/repr-sorting.h"
42 #include "livarot/Path.h"
43 #include "livarot/Shape.h"
45 Path *Path_for_item(SPItem *item, bool doTransformation, bool transformFull = true);
46 bool Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who);
48 void sp_selected_path_boolop(bool_op bop);
49 void sp_selected_path_do_offset(bool expand, double prefOffset);
50 void sp_selected_path_create_offset_object(int expand, bool updating);
52 void
53 sp_selected_path_union()
54 {
55 sp_selected_path_boolop(bool_op_union);
56 }
58 void
59 sp_selected_path_intersect()
60 {
61 sp_selected_path_boolop(bool_op_inters);
62 }
64 void
65 sp_selected_path_diff()
66 {
67 sp_selected_path_boolop(bool_op_diff);
68 }
70 void
71 sp_selected_path_symdiff()
72 {
73 sp_selected_path_boolop(bool_op_symdiff);
74 }
75 void
76 sp_selected_path_cut()
77 {
78 sp_selected_path_boolop(bool_op_cut);
79 }
80 void
81 sp_selected_path_slice()
82 {
83 sp_selected_path_boolop(bool_op_slice);
84 }
87 // boolean operations
88 // take the source paths from the file, do the operation, delete the originals and add the results
89 void
90 sp_selected_path_boolop(bool_op bop)
91 {
92 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
94 Inkscape::Selection *selection = SP_DT_SELECTION(desktop);
96 GSList *il = (GSList *) selection->itemList();
98 if (g_slist_length(il) < 2) {
99 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 2 paths</b> to perform a boolean operation."));
100 return;
101 }
103 if (g_slist_length(il) > 2) {
104 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
105 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>exactly 2 paths</b> to perform difference, XOR, division, or path cut."));
106 return;
107 }
108 }
110 // reverseOrderForOp marks whether the order of the list is the top->down order
111 // it's only used when there are 2 objects, and for operations who need to know the
112 // topmost object (differences, cuts)
113 bool reverseOrderForOp = false;
115 // mettre les elements de la liste dans l'ordre pour ces operations
116 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice) {
117 // check in the tree to find which element of the selection list is topmost (for 2-operand commands only)
118 Inkscape::XML::Node *a = SP_OBJECT_REPR(il->data);
119 Inkscape::XML::Node *b = SP_OBJECT_REPR(il->next->data);
121 if (a == NULL || b == NULL) {
122 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Unable to determine the <b>z-order</b> of the objects selected for difference, XOR, division, or path cut."));
123 return;
124 }
126 if (Ancetre(a, b)) {
127 // a is the parent of b, already in the proper order
128 } else if (Ancetre(b, a)) {
129 // reverse order
130 reverseOrderForOp = true;
131 } else {
133 // objects are not in parent/child relationship;
134 // find their lowest common ancestor
135 Inkscape::XML::Node *dad = LCA(a, b);
136 if (dad == NULL) {
137 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Unable to determine the <b>z-order</b> of the objects selected for difference, XOR, division, or path cut."));
138 return;
139 }
141 // find the children of the LCA that lead from it to the a and b
142 Inkscape::XML::Node *as = AncetreFils(a, dad);
143 Inkscape::XML::Node *bs = AncetreFils(b, dad);
145 // find out which comes first
146 for (Inkscape::XML::Node *child = dad->firstChild(); child; child = child->next()) {
147 if (child == as) {
148 /* a first, so reverse. */
149 reverseOrderForOp = true;
150 break;
151 }
152 if (child == bs)
153 break;
154 }
155 }
156 }
158 il = g_slist_copy(il);
160 // first check if all the input objects have shapes
161 // otherwise bail out
162 for (GSList *l = il; l != NULL; l = l->next)
163 {
164 SPItem *item = SP_ITEM(l->data);
165 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
166 {
167 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("One of the objects is <b>not a path</b>, cannot perform boolean operation."));
168 g_slist_free(il);
169 return;
170 }
171 }
173 // extract the livarot Paths from the source objects
174 // also get the winding rule specified in the style
175 int nbOriginaux = g_slist_length(il);
176 Path *originaux[nbOriginaux];
177 FillRule origWind[nbOriginaux];
178 int curOrig;
179 {
180 curOrig = 0;
181 for (GSList *l = il; l != NULL; l = l->next)
182 {
183 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(il->data), "style");
184 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
185 if (val && strcmp(val, "nonzero") == 0) {
186 origWind[curOrig]= fill_nonZero;
187 } else if (val && strcmp(val, "evenodd") == 0) {
188 origWind[curOrig]= fill_oddEven;
189 } else {
190 origWind[curOrig]= fill_nonZero;
191 }
193 originaux[curOrig] = Path_for_item((SPItem *) l->data, true, true);
194 if (originaux[curOrig] == NULL || originaux[curOrig]->descr_cmd.size() <= 1)
195 {
196 for (int i = curOrig; i >= 0; i--) delete originaux[i];
197 g_slist_free(il);
198 return;
199 }
200 curOrig++;
201 }
202 }
203 // reverse if needed
204 // note that the selection list keeps its order
205 if ( reverseOrderForOp ) {
206 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
207 FillRule swai=origWind[0]; origWind[0]=origWind[1]; origWind[1]=swai;
208 }
210 // and work
211 // some temporary instances, first
212 Shape *theShapeA = new Shape;
213 Shape *theShapeB = new Shape;
214 Shape *theShape = new Shape;
215 Path *res = new Path;
216 res->SetBackData(false);
217 Path::cut_position *toCut=NULL;
218 int nbToCut=0;
220 if ( bop == bool_op_inters || bop == bool_op_union || bop == bool_op_diff || bop == bool_op_symdiff ) {
221 // true boolean op
222 // get the polygons of each path, with the winding rule specified, and apply the operation iteratively
223 originaux[0]->ConvertWithBackData(0.001);
225 originaux[0]->Fill(theShape, 0);
227 theShapeA->ConvertToShape(theShape, origWind[0]);
229 curOrig = 1;
230 for (GSList *l = il->next; l != NULL; l = l->next) {
231 originaux[curOrig]->ConvertWithBackData(0.001);
233 originaux[curOrig]->Fill(theShape, curOrig);
235 theShapeB->ConvertToShape(theShape, origWind[curOrig]);
237 // les elements arrivent en ordre inverse dans la liste
238 theShape->Booleen(theShapeB, theShapeA, bop);
240 {
241 Shape *swap = theShape;
242 theShape = theShapeA;
243 theShapeA = swap;
244 }
245 curOrig++;
246 }
248 {
249 Shape *swap = theShape;
250 theShape = theShapeA;
251 theShapeA = swap;
252 }
254 } else if ( bop == bool_op_cut ) {
255 // cuts= sort of a bastard boolean operation, thus not the axact same modus operandi
256 // technically, the cut path is not necessarily a polygon (thus has no winding rule)
257 // it is just uncrossed, and cleaned from duplicate edges and points
258 // then it's fed to Booleen() which will uncross it against the other path
259 // then comes the trick: each edge of the cut path is duplicated (one in each direction),
260 // thus making a polygon. the weight of the edges of the cut are all 0, but
261 // the Booleen need to invert the ones inside the source polygon (for the subsequent
262 // ConvertToForme)
264 // the cut path needs to have the highest pathID in the back data
265 // that's how the Booleen() function knows it's an edge of the cut
267 // FIXME: this gives poor results, the final paths are full of extraneous nodes. Decreasing
268 // ConvertWithBackData parameter below simply increases the number of nodes, so for now I
269 // left it at 1.0. Investigate replacing this by a combination of difference and
270 // intersection of the same two paths. -- bb
271 {
272 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
273 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
274 }
275 originaux[0]->ConvertWithBackData(1.0);
277 originaux[0]->Fill(theShape, 0);
279 theShapeA->ConvertToShape(theShape, origWind[0]);
281 originaux[1]->ConvertWithBackData(1.0);
283 originaux[1]->Fill(theShape, 1,false,false,false); //do not closeIfNeeded
285 theShapeB->ConvertToShape(theShape, fill_justDont); // fill_justDont doesn't computes winding numbers
287 // les elements arrivent en ordre inverse dans la liste
288 theShape->Booleen(theShapeB, theShapeA, bool_op_cut, 1);
290 } else if ( bop == bool_op_slice ) {
291 // slice is not really a boolean operation
292 // you just put the 2 shapes in a single polygon, uncross it
293 // the points where the degree is > 2 are intersections
294 // just check it's an intersection on the path you want to cut, and keep it
295 // the intersections you have found are then fed to ConvertPositionsToMoveTo() which will
296 // make new subpath at each one of these positions
297 // inversion pour l'op\8eration
298 {
299 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
300 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
301 }
302 originaux[0]->ConvertWithBackData(1.0);
304 originaux[0]->Fill(theShapeA, 0,false,false,false); // don't closeIfNeeded
306 originaux[1]->ConvertWithBackData(1.0);
308 originaux[1]->Fill(theShapeA, 1,true,false,false);// don't closeIfNeeded and just dump in the shape, don't reset it
310 theShape->ConvertToShape(theShapeA, fill_justDont);
312 if ( theShape->hasBackData() ) {
313 // should always be the case, but ya never know
314 {
315 for (int i = 0; i < theShape->numberOfPoints(); i++) {
316 if ( theShape->getPoint(i).totalDegree() > 2 ) {
317 // possibly an intersection
318 // we need to check that at least one edge from the source path is incident to it
319 // before we declare it's an intersection
320 int cb = theShape->getPoint(i).incidentEdge[FIRST];
321 int nbOrig=0;
322 int nbOther=0;
323 int piece=-1;
324 float t=0.0;
325 while ( cb >= 0 && cb < theShape->numberOfEdges() ) {
326 if ( theShape->ebData[cb].pathID == 0 ) {
327 // the source has an edge incident to the point, get its position on the path
328 piece=theShape->ebData[cb].pieceID;
329 if ( theShape->getEdge(cb).st == i ) {
330 t=theShape->ebData[cb].tSt;
331 } else {
332 t=theShape->ebData[cb].tEn;
333 }
334 nbOrig++;
335 }
336 if ( theShape->ebData[cb].pathID == 1 ) nbOther++; // the cut is incident to this point
337 cb=theShape->NextAt(i, cb);
338 }
339 if ( nbOrig > 0 && nbOther > 0 ) {
340 // point incident to both path and cut: an intersection
341 // note that you only keep one position on the source; you could have degenerate
342 // cases where the source crosses itself at this point, and you wouyld miss an intersection
343 toCut=(Path::cut_position*)realloc(toCut, (nbToCut+1)*sizeof(Path::cut_position));
344 toCut[nbToCut].piece=piece;
345 toCut[nbToCut].t=t;
346 nbToCut++;
347 }
348 }
349 }
350 }
351 {
352 // i think it's useless now
353 int i = theShape->numberOfEdges() - 1;
354 for (;i>=0;i--) {
355 if ( theShape->ebData[i].pathID == 1 ) {
356 theShape->SubEdge(i);
357 }
358 }
359 }
361 }
362 }
364 int* nesting=NULL;
365 int* conts=NULL;
366 int nbNest=0;
367 // pour compenser le swap juste avant
368 if ( bop == bool_op_slice ) {
369 // theShape->ConvertToForme(res, nbOriginaux, originaux, true);
370 // res->ConvertForcedToMoveTo();
371 res->Copy(originaux[0]);
372 res->ConvertPositionsToMoveTo(nbToCut, toCut); // cut where you found intersections
373 free(toCut);
374 } else if ( bop == bool_op_cut ) {
375 // il faut appeler pour desallouer PointData (pas vital, mais bon)
376 // the Booleen() function did not deallocated the point_data array in theShape, because this
377 // function needs it.
378 // this function uses the point_data to get the winding number of each path (ie: is a hole or not)
379 // for later reconstruction in objects, you also need to extract which path is parent of holes (nesting info)
380 theShape->ConvertToFormeNested(res, nbOriginaux, originaux, 1, nbNest, nesting, conts);
381 } else {
382 theShape->ConvertToForme(res, nbOriginaux, originaux);
383 }
385 delete theShape;
386 delete theShapeA;
387 delete theShapeB;
388 for (int i = 0; i < nbOriginaux; i++) delete originaux[i];
390 if (res->descr_cmd.size() <= 1)
391 {
392 // only one command, presumably a moveto: it isn't a path
393 for (GSList *l = il; l != NULL; l = l->next)
394 {
395 SP_OBJECT(l->data)->deleteObject();
396 }
397 sp_document_done(SP_DT_DOCUMENT(desktop));
398 selection->clear();
400 delete res;
401 g_slist_free(il);
402 return;
403 }
405 // remember important aspects of the source path, to be restored
406 Inkscape::XML::Node *repr_source;
407 if ( bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
408 if (reverseOrderForOp) {
409 repr_source = SP_OBJECT_REPR(il->data);
410 } else {
411 repr_source = SP_OBJECT_REPR(il->next->data);
412 }
413 } else {
414 // find out the bottom object
415 GSList *sorted = g_slist_copy((GSList *) selection->reprList());
417 sorted = g_slist_sort(sorted, (GCompareFunc) sp_repr_compare_position);
418 repr_source = ((Inkscape::XML::Node *) sorted->data);
419 g_slist_free(sorted);
420 }
421 gint pos = repr_source->position();
422 Inkscape::XML::Node *parent = sp_repr_parent(repr_source);
423 char const *id = repr_source->attribute("id");
424 char const *style = repr_source->attribute("style");
427 // remove source paths
428 selection->clear();
429 for (GSList *l = il; l != NULL; l = l->next) {
430 // if this is the bottommost object,
431 if (!strcmp(SP_OBJECT_REPR(l->data)->attribute("id"), id)) {
432 // delete it so that its clones don't get alerted; this object will be restored shortly, with the same id
433 SP_OBJECT(l->data)->deleteObject(false);
434 } else {
435 // delete the object for real, so that its clones can take appropriate action
436 SP_OBJECT(l->data)->deleteObject();
437 }
438 }
439 g_slist_free(il);
441 // premultiply by the inverse of parent's repr
442 SPItem *parent_item = SP_ITEM(SP_DT_DOCUMENT(desktop)->getObjectByRepr(parent));
443 NR::Matrix local = sp_item_i2doc_affine(parent_item);
444 gchar affinestr[80];
445 gchar *transform = NULL;
446 if (!local.test_identity() && sp_svg_transform_write(affinestr, 79, local.inverse())) {
447 transform = affinestr;
448 }
450 // now that we have the result, add it on the canvas
451 if ( bop == bool_op_cut || bop == bool_op_slice ) {
452 int nbRP=0;
453 Path** resPath;
454 if ( bop == bool_op_slice ) {
455 // there are moveto's at each intersection, but it's still one unique path
456 // so break it down and add each subpath independently
457 // we could call break_apart to do this, but while we have the description...
458 resPath=res->SubPaths(nbRP, false);
459 } else {
460 // cut operation is a bit wicked: you need to keep holes
461 // that's why you needed the nesting
462 // ConvertToFormeNested() dumped all the subpath in a single Path "res", so we need
463 // to get the path for each part of the polygon. that's why you need the nesting info:
464 // to know in wich subpath to add a subpath
465 resPath=res->SubPathsWithNesting(nbRP, true, nbNest, nesting, conts);
467 // cleaning
468 if ( conts ) free(conts);
469 if ( nesting ) free(nesting);
470 }
472 // add all the pieces resulting from cut or slice
473 for (int i=0;i<nbRP;i++) {
474 gchar *d = resPath[i]->svg_dump_path();
476 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
477 repr->setAttribute("style", style);
478 repr->setAttribute("d", d);
479 g_free(d);
481 // for slice, remove fill
482 if (bop == bool_op_slice) {
483 SPCSSAttr *css;
485 css = sp_repr_css_attr_new();
486 sp_repr_css_set_property(css, "fill", "none");
488 sp_repr_css_change(repr, css, "style");
490 sp_repr_css_attr_unref(css);
491 }
493 // we assign the same id on all pieces, but it on adding to document, it will be changed on all except one
494 // this means it's basically random which of the pieces inherits the original's id and clones
495 // a better algorithm might figure out e.g. the biggest piece
496 repr->setAttribute("id", id);
498 repr->setAttribute("transform", transform);
500 // add the new repr to the parent
501 parent->appendChild(repr);
503 // move to the saved position
504 repr->setPosition(pos > 0 ? pos : 0);
506 selection->add(repr);
507 Inkscape::GC::release(repr);
509 delete resPath[i];
510 }
511 if ( resPath ) free(resPath);
513 } else {
514 gchar *d = res->svg_dump_path();
516 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
517 repr->setAttribute("style", style);
519 repr->setAttribute("d", d);
520 g_free(d);
522 repr->setAttribute("transform", transform);
524 repr->setAttribute("id", id);
525 parent->appendChild(repr);
526 repr->setPosition(pos > 0 ? pos : 0);
528 selection->add(repr);
529 Inkscape::GC::release(repr);
530 }
532 sp_document_done(SP_DT_DOCUMENT(desktop));
534 delete res;
535 }
538 void
539 sp_selected_path_outline()
540 {
541 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
543 Inkscape::Selection *selection = SP_DT_SELECTION(desktop);
545 if (selection->isEmpty()) {
546 // TRANSLATORS: "to outline" means "to convert stroke to path"
547 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to outline."));
548 return;
549 }
551 bool did = false;
553 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
554 items != NULL;
555 items = items->next) {
557 SPItem *item = (SPItem *) items->data;
559 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
560 continue;
562 SPCurve *curve = NULL;
563 if (SP_IS_SHAPE(item)) {
564 curve = sp_shape_get_curve(SP_SHAPE(item));
565 if (curve == NULL)
566 continue;
567 }
568 if (SP_IS_TEXT(item)) {
569 curve = SP_TEXT(item)->getNormalizedBpath();
570 if (curve == NULL)
571 continue;
572 }
574 { // pas de stroke pas de chocolat
575 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
576 gchar const *val = sp_repr_css_property(css, "stroke", NULL);
578 if (val == NULL || strcmp(val, "none") == 0) {
579 sp_curve_unref(curve);
580 continue;
581 }
582 }
584 // remember old stroke style, to be set on fill
585 SPCSSAttr *ncss;
586 {
587 SPCSSAttr *ocss = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
588 gchar const *val = sp_repr_css_property(ocss, "stroke", NULL);
589 gchar const *opac = sp_repr_css_property(ocss, "stroke-opacity", NULL);
591 ncss = sp_repr_css_attr_new();
593 sp_repr_css_set_property(ncss, "stroke", "none");
594 sp_repr_css_set_property(ncss, "stroke-opacity", "1.0");
595 sp_repr_css_set_property(ncss, "fill", val);
596 if ( opac ) {
597 sp_repr_css_set_property(ncss, "fill-opacity", opac);
598 } else {
599 sp_repr_css_set_property(ncss, "fill-opacity", "1.0");
600 }
601 }
603 NR::Matrix const transform(item->transform);
604 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
606 float o_width, o_miter;
607 JoinType o_join;
608 ButtType o_butt;
610 {
611 SPStyle *i_style = SP_OBJECT(item)->style;
612 int jointype, captype;
614 jointype = i_style->stroke_linejoin.computed;
615 captype = i_style->stroke_linecap.computed;
616 o_width = i_style->stroke_width.computed;
618 switch (jointype) {
619 case SP_STROKE_LINEJOIN_MITER:
620 o_join = join_pointy;
621 break;
622 case SP_STROKE_LINEJOIN_ROUND:
623 o_join = join_round;
624 break;
625 default:
626 o_join = join_straight;
627 break;
628 }
630 switch (captype) {
631 case SP_STROKE_LINECAP_SQUARE:
632 o_butt = butt_square;
633 break;
634 case SP_STROKE_LINECAP_ROUND:
635 o_butt = butt_round;
636 break;
637 default:
638 o_butt = butt_straight;
639 break;
640 }
642 if (o_width < 0.1)
643 o_width = 0.1;
644 o_miter = i_style->stroke_miterlimit.value * o_width;
645 }
647 Path *orig = Path_for_item(item, false);
648 if (orig == NULL) {
649 g_free(style);
650 sp_curve_unref(curve);
651 continue;
652 }
654 Path *res = new Path;
655 res->SetBackData(false);
658 {
659 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
661 orig->Coalesce(0.5 * o_width);
663 Shape *theShape = new Shape;
664 Shape *theRes = new Shape;
666 res->ConvertWithBackData(1.0);
667 res->Fill(theShape, 0);
668 theRes->ConvertToShape(theShape, fill_positive);
670 Path *originaux[1];
671 originaux[0] = res;
672 theRes->ConvertToForme(orig, 1, originaux);
674 delete theShape;
675 delete theRes;
676 }
678 if (orig->descr_cmd.size() <= 1) {
679 // ca a merd\8e, ou bien le resultat est vide
680 delete res;
681 delete orig;
682 g_free(style);
683 continue;
684 }
686 did = true;
688 sp_curve_unref(curve);
689 // remember the position of the item
690 gint pos = SP_OBJECT_REPR(item)->position();
691 // remember parent
692 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
693 // remember id
694 char const *id = SP_OBJECT_REPR(item)->attribute("id");
696 selection->remove(item);
697 SP_OBJECT(item)->deleteObject(false);
699 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
701 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
703 // restore old style
704 repr->setAttribute("style", style);
706 // set old stroke style on fill
707 sp_repr_css_change(repr, ncss, "style");
709 sp_repr_css_attr_unref(ncss);
711 gchar *str = orig->svg_dump_path();
712 repr->setAttribute("d", str);
713 g_free(str);
715 // add the new repr to the parent
716 parent->appendChild(repr);
718 // move to the saved position
719 repr->setPosition(pos > 0 ? pos : 0);
721 repr->setAttribute("id", id);
723 SPItem *newitem = (SPItem *) SP_DT_DOCUMENT(desktop)->getObjectByRepr(repr);
724 sp_item_write_transform(newitem, repr, transform);
726 selection->add(repr);
728 Inkscape::GC::release(repr);
729 }
731 delete res;
732 delete orig;
733 g_free(style);
735 }
737 if (did) {
738 sp_document_done(SP_DT_DOCUMENT(desktop));
739 } else {
740 // TRANSLATORS: "to outline" means "to convert stroke to path"
741 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No stroked paths</b> to outline in the selection."));
742 return;
743 }
744 }
747 void
748 sp_selected_path_offset()
749 {
750 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
752 sp_selected_path_do_offset(true, prefOffset);
753 }
754 void
755 sp_selected_path_inset()
756 {
757 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
759 sp_selected_path_do_offset(false, prefOffset);
760 }
762 void
763 sp_selected_path_offset_screen(double pixels)
764 {
765 sp_selected_path_do_offset(true, pixels / SP_ACTIVE_DESKTOP->current_zoom());
766 }
768 void
769 sp_selected_path_inset_screen(double pixels)
770 {
771 sp_selected_path_do_offset(false, pixels / SP_ACTIVE_DESKTOP->current_zoom());
772 }
775 void sp_selected_path_create_offset_object_zero()
776 {
777 sp_selected_path_create_offset_object(0, false);
778 }
780 void sp_selected_path_create_offset()
781 {
782 sp_selected_path_create_offset_object(1, false);
783 }
784 void sp_selected_path_create_inset()
785 {
786 sp_selected_path_create_offset_object(-1, false);
787 }
789 void sp_selected_path_create_updating_offset_object_zero()
790 {
791 sp_selected_path_create_offset_object(0, true);
792 }
794 void sp_selected_path_create_updating_offset()
795 {
796 sp_selected_path_create_offset_object(1, true);
797 }
798 void sp_selected_path_create_updating_inset()
799 {
800 sp_selected_path_create_offset_object(-1, true);
801 }
803 void
804 sp_selected_path_create_offset_object(int expand, bool updating)
805 {
806 Inkscape::Selection *selection;
807 Inkscape::XML::Node *repr;
808 SPItem *item;
809 SPCurve *curve;
810 gchar *style, *str;
811 SPDesktop *desktop;
812 float o_width, o_miter;
813 JoinType o_join;
814 ButtType o_butt;
816 curve = NULL;
818 desktop = SP_ACTIVE_DESKTOP;
820 selection = SP_DT_SELECTION(desktop);
822 item = selection->singleItem();
824 if (item == NULL || ( !SP_IS_SHAPE(item) && !SP_IS_TEXT(item) ) ) {
825 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Selected object is <b>not a path</b>, cannot inset/outset."));
826 return;
827 }
828 if (SP_IS_SHAPE(item))
829 {
830 curve = sp_shape_get_curve(SP_SHAPE(item));
831 if (curve == NULL)
832 return;
833 }
834 if (SP_IS_TEXT(item))
835 {
836 curve = SP_TEXT(item)->getNormalizedBpath();
837 if (curve == NULL)
838 return;
839 }
841 NR::Matrix const transform(item->transform);
843 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
845 style = g_strdup(SP_OBJECT(item)->repr->attribute("style"));
847 // remember the position of the item
848 gint pos = SP_OBJECT_REPR(item)->position();
849 // remember parent
850 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
852 {
853 SPStyle *i_style = SP_OBJECT(item)->style;
854 int jointype, captype;
856 jointype = i_style->stroke_linejoin.value;
857 captype = i_style->stroke_linecap.value;
858 o_width = i_style->stroke_width.computed;
859 if (jointype == SP_STROKE_LINEJOIN_MITER)
860 {
861 o_join = join_pointy;
862 }
863 else if (jointype == SP_STROKE_LINEJOIN_ROUND)
864 {
865 o_join = join_round;
866 }
867 else
868 {
869 o_join = join_straight;
870 }
871 if (captype == SP_STROKE_LINECAP_SQUARE)
872 {
873 o_butt = butt_square;
874 }
875 else if (captype == SP_STROKE_LINECAP_ROUND)
876 {
877 o_butt = butt_round;
878 }
879 else
880 {
881 o_butt = butt_straight;
882 }
884 {
885 double prefOffset = 1.0;
886 prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", prefOffset);
887 o_width = prefOffset;
888 }
890 if (o_width < 0.01)
891 o_width = 0.01;
892 o_miter = i_style->stroke_miterlimit.value * o_width;
893 }
895 Path *orig = Path_for_item(item, true, false);
896 if (orig == NULL)
897 {
898 g_free(style);
899 sp_curve_unref(curve);
900 return;
901 }
903 Path *res = new Path;
904 res->SetBackData(false);
906 {
907 Shape *theShape = new Shape;
908 Shape *theRes = new Shape;
910 orig->ConvertWithBackData(1.0);
911 orig->Fill(theShape, 0);
913 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
914 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
915 if (val && strcmp(val, "nonzero") == 0)
916 {
917 theRes->ConvertToShape(theShape, fill_nonZero);
918 }
919 else if (val && strcmp(val, "evenodd") == 0)
920 {
921 theRes->ConvertToShape(theShape, fill_oddEven);
922 }
923 else
924 {
925 theRes->ConvertToShape(theShape, fill_nonZero);
926 }
928 Path *originaux[1];
929 originaux[0] = orig;
930 theRes->ConvertToForme(res, 1, originaux);
932 delete theShape;
933 delete theRes;
934 }
936 sp_curve_unref(curve);
938 if (res->descr_cmd.size() <= 1)
939 {
940 // pas vraiment de points sur le resultat
941 // donc il ne reste rien
942 sp_document_done(SP_DT_DOCUMENT(desktop));
943 selection->clear();
945 delete res;
946 delete orig;
947 g_free(style);
948 return;
949 }
951 {
952 gchar tstr[80];
954 tstr[79] = '\0';
956 repr = sp_repr_new("svg:path");
957 repr->setAttribute("sodipodi:type", "inkscape:offset");
958 sp_repr_set_svg_double(repr, "inkscape:radius", ( expand > 0
959 ? o_width
960 : expand < 0
961 ? -o_width
962 : 0 ));
964 str = res->svg_dump_path();
965 repr->setAttribute("inkscape:original", str);
966 g_free(str);
968 if ( updating ) {
969 char const *id = SP_OBJECT(item)->repr->attribute("id");
970 char const *uri = g_strdup_printf("#%s", id);
971 repr->setAttribute("xlink:href", uri);
972 g_free((void *) uri);
973 } else {
974 repr->setAttribute("inkscape:href", NULL);
975 }
977 repr->setAttribute("style", style);
979 // add the new repr to the parent
980 parent->appendChild(repr);
982 // move to the saved position
983 repr->setPosition(pos > 0 ? pos : 0);
985 SPItem *nitem = (SPItem *) SP_DT_DOCUMENT(desktop)->getObjectByRepr(repr);
987 if ( updating ) {
988 // on conserve l'original
989 // we reapply the transform to the original (offset will feel it)
990 sp_item_write_transform(item, SP_OBJECT_REPR(item), transform);
991 } else {
992 // delete original, apply the transform to the offset
993 SP_OBJECT(item)->deleteObject(false);
994 sp_item_write_transform(nitem, repr, transform);
995 }
997 // The object just created from a temporary repr is only a seed.
998 // We need to invoke its write which will update its real repr (in particular adding d=)
999 SP_OBJECT(nitem)->updateRepr();
1001 Inkscape::GC::release(repr);
1003 selection->set(nitem);
1004 }
1006 sp_document_done(SP_DT_DOCUMENT(desktop));
1008 delete res;
1009 delete orig;
1011 g_free(style);
1012 }
1025 void
1026 sp_selected_path_do_offset(bool expand, double prefOffset)
1027 {
1028 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1030 Inkscape::Selection *selection = SP_DT_SELECTION(desktop);
1032 if (selection->isEmpty()) {
1033 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to inset/outset."));
1034 return;
1035 }
1037 bool did = false;
1039 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1040 items != NULL;
1041 items = items->next) {
1043 SPItem *item = (SPItem *) items->data;
1045 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
1046 continue;
1048 SPCurve *curve = NULL;
1049 if (SP_IS_SHAPE(item)) {
1050 curve = sp_shape_get_curve(SP_SHAPE(item));
1051 if (curve == NULL)
1052 continue;
1053 }
1054 if (SP_IS_TEXT(item)) {
1055 curve = SP_TEXT(item)->getNormalizedBpath();
1056 if (curve == NULL)
1057 continue;
1058 }
1060 NR::Matrix const transform(item->transform);
1062 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1064 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1066 float o_width, o_miter;
1067 JoinType o_join;
1068 ButtType o_butt;
1070 {
1071 SPStyle *i_style = SP_OBJECT(item)->style;
1072 int jointype, captype;
1074 jointype = i_style->stroke_linejoin.value;
1075 captype = i_style->stroke_linecap.value;
1076 o_width = i_style->stroke_width.computed;
1078 switch (jointype) {
1079 case SP_STROKE_LINEJOIN_MITER:
1080 o_join = join_pointy;
1081 break;
1082 case SP_STROKE_LINEJOIN_ROUND:
1083 o_join = join_round;
1084 break;
1085 default:
1086 o_join = join_straight;
1087 break;
1088 }
1090 switch (captype) {
1091 case SP_STROKE_LINECAP_SQUARE:
1092 o_butt = butt_square;
1093 break;
1094 case SP_STROKE_LINECAP_ROUND:
1095 o_butt = butt_round;
1096 break;
1097 default:
1098 o_butt = butt_straight;
1099 break;
1100 }
1102 o_width = prefOffset;
1104 if (o_width < 0.1)
1105 o_width = 0.1;
1106 o_miter = i_style->stroke_miterlimit.value * o_width;
1107 }
1109 Path *orig = Path_for_item(item, false);
1110 if (orig == NULL) {
1111 g_free(style);
1112 sp_curve_unref(curve);
1113 continue;
1114 }
1116 Path *res = new Path;
1117 res->SetBackData(false);
1119 {
1120 Shape *theShape = new Shape;
1121 Shape *theRes = new Shape;
1123 orig->ConvertWithBackData(0.03);
1124 orig->Fill(theShape, 0);
1126 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1127 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1128 if (val && strcmp(val, "nonzero") == 0)
1129 {
1130 theRes->ConvertToShape(theShape, fill_nonZero);
1131 }
1132 else if (val && strcmp(val, "evenodd") == 0)
1133 {
1134 theRes->ConvertToShape(theShape, fill_oddEven);
1135 }
1136 else
1137 {
1138 theRes->ConvertToShape(theShape, fill_nonZero);
1139 }
1141 // et maintenant: offset
1142 // methode inexacte
1143 /* Path *originaux[1];
1144 originaux[0] = orig;
1145 theRes->ConvertToForme(res, 1, originaux);
1147 if (expand) {
1148 res->OutsideOutline(orig, 0.5 * o_width, o_join, o_butt, o_miter);
1149 } else {
1150 res->OutsideOutline(orig, -0.5 * o_width, o_join, o_butt, o_miter);
1151 }
1153 orig->ConvertWithBackData(1.0);
1154 orig->Fill(theShape, 0);
1155 theRes->ConvertToShape(theShape, fill_positive);
1156 originaux[0] = orig;
1157 theRes->ConvertToForme(res, 1, originaux);
1159 if (o_width >= 0.5) {
1160 // res->Coalesce(1.0);
1161 res->ConvertEvenLines(1.0);
1162 res->Simplify(1.0);
1163 } else {
1164 // res->Coalesce(o_width);
1165 res->ConvertEvenLines(1.0*o_width);
1166 res->Simplify(1.0 * o_width);
1167 } */
1168 // methode par makeoffset
1170 if (expand)
1171 {
1172 theShape->MakeOffset(theRes, o_width, o_join, o_miter);
1173 }
1174 else
1175 {
1176 theShape->MakeOffset(theRes, -o_width, o_join, o_miter);
1177 }
1178 theRes->ConvertToShape(theShape, fill_positive);
1180 res->Reset();
1181 theRes->ConvertToForme(res);
1183 if (o_width >= 1.0)
1184 {
1185 res->ConvertEvenLines(1.0);
1186 res->Simplify(1.0);
1187 }
1188 else
1189 {
1190 res->ConvertEvenLines(1.0*o_width);
1191 res->Simplify(1.0 * o_width);
1192 }
1194 delete theShape;
1195 delete theRes;
1196 }
1198 did = true;
1200 sp_curve_unref(curve);
1201 // remember the position of the item
1202 gint pos = SP_OBJECT_REPR(item)->position();
1203 // remember parent
1204 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1205 // remember id
1206 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1208 selection->remove(item);
1209 SP_OBJECT(item)->deleteObject(false);
1211 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
1213 gchar tstr[80];
1215 tstr[79] = '\0';
1217 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
1219 repr->setAttribute("style", style);
1221 gchar *str = res->svg_dump_path();
1222 repr->setAttribute("d", str);
1223 g_free(str);
1225 // add the new repr to the parent
1226 parent->appendChild(repr);
1228 // move to the saved position
1229 repr->setPosition(pos > 0 ? pos : 0);
1231 SPItem *newitem = (SPItem *) SP_DT_DOCUMENT(desktop)->getObjectByRepr(repr);
1233 // reapply the transform
1234 sp_item_write_transform(newitem, repr, transform);
1236 repr->setAttribute("id", id);
1238 selection->add(repr);
1240 Inkscape::GC::release(repr);
1241 }
1243 delete orig;
1244 delete res;
1245 }
1247 if (did) {
1248 sp_document_done(SP_DT_DOCUMENT(desktop));
1249 } else {
1250 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to inset/outset in the selection."));
1251 return;
1252 }
1253 }
1257 //return true if we changed something, else false
1258 bool
1259 sp_selected_path_simplify_item(SPDesktop *desktop, Inkscape::Selection *selection, SPItem *item,
1260 float threshold, bool justCoalesce,
1261 float angleLimit, bool breakableAngles,
1262 gdouble size, bool modifySelection)
1263 {
1264 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1265 return false;
1267 //If this is a group, do the children instead
1268 if (SP_IS_GROUP(item)) {
1270 bool didSomething = false;
1272 for ( GSList *children = sp_item_group_item_list(SP_GROUP(item));
1273 children ; children = children->next) {
1275 SPItem *child = (SPItem *) children->data;
1276 didSomething |= sp_selected_path_simplify_item(desktop, selection, child, threshold, justCoalesce,
1277 angleLimit, breakableAngles, size, false);
1278 }
1280 return didSomething;
1281 }
1284 SPCurve *curve = NULL;
1286 if (SP_IS_SHAPE(item)) {
1287 curve = sp_shape_get_curve(SP_SHAPE(item));
1288 if (!curve)
1289 return false;
1290 }
1292 if (SP_IS_TEXT(item)) {
1293 curve = SP_TEXT(item)->getNormalizedBpath();
1294 if (!curve)
1295 return false;
1296 }
1298 // save the transform, to re-apply it after simplification
1299 NR::Matrix const transform(item->transform);
1301 /*
1302 reset the transform, effectively transforming the item by transform.inverse();
1303 this is necessary so that the item is transformed twice back and forth,
1304 allowing all compensations to cancel out regardless of the preferences
1305 */
1306 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1308 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1310 Path *orig = Path_for_item(item, false);
1311 if (orig == NULL) {
1312 g_free(style);
1313 sp_curve_unref(curve);
1314 return false;
1315 }
1317 sp_curve_unref(curve);
1318 // remember the position of the item
1319 gint pos = SP_OBJECT_REPR(item)->position();
1320 // remember parent
1321 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1322 // remember id
1323 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1325 //If a group was selected, to not change the selection list
1326 if (modifySelection)
1327 selection->remove(item);
1329 SP_OBJECT(item)->deleteObject(false);
1331 if ( justCoalesce ) {
1332 orig->Coalesce(threshold * size);
1333 } else {
1334 orig->ConvertEvenLines(threshold * size);
1335 orig->Simplify(threshold * size);
1336 }
1338 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
1340 repr->setAttribute("style", style);
1342 gchar *str = orig->svg_dump_path();
1343 repr->setAttribute("d", str);
1344 g_free(str);
1346 // restore id
1347 repr->setAttribute("id", id);
1349 // add the new repr to the parent
1350 parent->appendChild(repr);
1352 // move to the saved position
1353 repr->setPosition(pos > 0 ? pos : 0);
1355 SPItem *newitem = (SPItem *) SP_DT_DOCUMENT(desktop)->getObjectByRepr(repr);
1357 // reapply the transform
1358 sp_item_write_transform(newitem, repr, transform);
1360 //If we are not in a selected group
1361 if (modifySelection)
1362 selection->add(repr);
1364 Inkscape::GC::release(repr);
1366 // clean up
1367 if (orig) delete orig;
1369 return true;
1370 }
1373 void
1374 sp_selected_path_simplify_selection(float threshold, bool justCoalesce,
1375 float angleLimit, bool breakableAngles)
1376 {
1377 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1379 Inkscape::Selection *selection = SP_DT_SELECTION(desktop);
1381 if (selection->isEmpty()) {
1382 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE,
1383 _("Select <b>path(s)</b> to simplify."));
1384 return;
1385 }
1387 // remember selection size
1388 NR::Rect bbox = selection->bounds();
1389 gdouble size = L2(bbox.dimensions());
1391 bool didSomething = false;
1393 //Loop through all of the items in the selection
1394 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1395 items != NULL; items = items->next) {
1397 SPItem *item = (SPItem *) items->data;
1399 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1400 continue;
1402 didSomething |= sp_selected_path_simplify_item(desktop, selection, item,
1403 threshold, justCoalesce, angleLimit, breakableAngles, size, true);
1404 }
1407 if (didSomething)
1408 sp_document_done(SP_DT_DOCUMENT(desktop));
1409 else
1410 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to simplify in the selection."));
1412 }
1415 // globals for keeping track of accelerated simplify
1416 static double previousTime = 0.0;
1417 static gdouble simplifyMultiply = 1.0;
1419 void
1420 sp_selected_path_simplify(void)
1421 {
1422 gdouble simplifyThreshold =
1423 prefs_get_double_attribute("options.simplifythreshold", "value", 0.003);
1424 bool simplifyJustCoalesce =
1425 (bool) prefs_get_int_attribute("options.simplifyjustcoalesce", "value", 0);
1427 //Get the current time
1428 GTimeVal currentTimeVal;
1429 g_get_current_time(¤tTimeVal);
1430 double currentTime = currentTimeVal.tv_sec * 1000000 +
1431 currentTimeVal.tv_usec;
1433 //Was the previous call to this function recent? (<0.5 sec)
1434 if (previousTime > 0.0 && currentTime - previousTime < 500000.0) {
1436 // add to the threshold 1/2 of its original value
1437 simplifyMultiply += 0.5;
1438 simplifyThreshold *= simplifyMultiply;
1440 } else {
1441 // reset to the default
1442 simplifyMultiply = 1;
1443 }
1445 //remember time for next call
1446 previousTime = currentTime;
1448 //g_print("%g\n", simplify_threshold);
1450 //Make the actual call
1451 sp_selected_path_simplify_selection(simplifyThreshold,
1452 simplifyJustCoalesce, 0.0, false);
1453 }
1457 // fonctions utilitaires
1459 bool
1460 Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who)
1461 {
1462 if (who == NULL || a == NULL)
1463 return false;
1464 if (who == a)
1465 return true;
1466 return Ancetre(sp_repr_parent(a), who);
1467 }
1469 Path *
1470 Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
1471 {
1472 SPCurve *curve;
1474 if (!item)
1475 return NULL;
1477 if (SP_IS_SHAPE(item))
1478 {
1479 curve = sp_shape_get_curve(SP_SHAPE(item));
1480 }
1481 else if (SP_IS_TEXT(item))
1482 {
1483 curve = SP_TEXT(item)->getNormalizedBpath();
1484 }
1485 else
1486 {
1487 curve = NULL;
1488 }
1490 if (!curve)
1491 return NULL;
1492 NArtBpath *bpath = curve->bpath;
1493 if (bpath == NULL)
1494 return NULL;
1496 if ( doTransformation ) {
1497 if (transformFull)
1498 bpath = nr_artpath_affine(curve->bpath, sp_item_i2doc_affine(item));
1499 else
1500 bpath = nr_artpath_affine(curve->bpath, item->transform);
1501 sp_curve_unref(curve);
1502 curve=NULL;
1503 } else {
1504 bpath=curve->bpath;
1505 }
1507 Path *dest = new Path;
1508 dest->SetBackData(false);
1509 {
1510 int i;
1511 bool closed = false;
1512 float lastX = 0.0;
1513 float lastY = 0.0;
1515 for (i = 0; bpath[i].code != NR_END; i++) {
1516 switch (bpath[i].code) {
1517 case NR_LINETO:
1518 lastX = bpath[i].x3;
1519 lastY = bpath[i].y3;
1520 {
1521 NR::Point tmp(lastX, lastY);
1522 dest->LineTo(tmp);
1523 }
1524 break;
1526 case NR_CURVETO:
1527 {
1528 NR::Point tmp, tms, tme;
1529 tmp[0]=bpath[i].x3;
1530 tmp[1]=bpath[i].y3;
1531 tms[0]=3 * (bpath[i].x1 - lastX);
1532 tms[1]=3 * (bpath[i].y1 - lastY);
1533 tme[0]=3 * (bpath[i].x3 - bpath[i].x2);
1534 tme[1]=3 * (bpath[i].y3 - bpath[i].y2);
1535 dest->CubicTo(tmp,tms,tme);
1536 }
1537 lastX = bpath[i].x3;
1538 lastY = bpath[i].y3;
1539 break;
1541 case NR_MOVETO_OPEN:
1542 case NR_MOVETO:
1543 if (closed)
1544 dest->Close();
1545 closed = (bpath[i].code == NR_MOVETO);
1546 lastX = bpath[i].x3;
1547 lastY = bpath[i].y3;
1548 {
1549 NR::Point tmp(lastX, lastY);
1550 dest->MoveTo(tmp);
1551 }
1552 break;
1553 default:
1554 break;
1555 }
1556 }
1557 if (closed)
1558 dest->Close();
1559 }
1561 if ( doTransformation ) {
1562 if ( bpath ) nr_free(bpath);
1563 } else {
1564 sp_curve_unref(curve);
1565 }
1566 return dest;
1567 }
1569 NR::Maybe<Path::cut_position> get_nearest_position_on_Path(SPItem *item, NR::Point p)
1570 {
1571 //Create and initialize a livarot Path
1572 Path *path = Path_for_item(item, true, true);
1573 if (path == NULL) {
1574 return NR::Nothing();
1575 }
1576 path->ConvertWithBackData(0.01);
1578 //get nearest position on path
1579 Path::cut_position pos = path->PointToCurvilignPosition(p);
1580 delete path;
1581 return pos;
1582 }
1584 NR::Point get_point_on_Path(SPItem *item, int piece, double t)
1585 {
1586 //Create and initialize a livarot Path
1587 Path *path = Path_for_item(item, true, true);
1588 path->ConvertWithBackData(0.01);
1590 //get nearest position on path
1591 NR::Point p;
1592 path->PointAt(piece, t, p);
1593 delete path;
1594 return p;
1595 }
1598 /*
1599 Local Variables:
1600 mode:c++
1601 c-file-style:"stroustrup"
1602 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1603 indent-tabs-mode:nil
1604 fill-column:99
1605 End:
1606 */
1607 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :