252a2432df4aec993d7f4aae14e35d64a4ebed74
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 <vector>
21 #include <glib/gmem.h>
22 #include "xml/repr.h"
23 #include "svg/svg.h"
24 #include "sp-path.h"
25 #include "sp-shape.h"
26 #include "sp-marker.h"
27 #include "enums.h"
28 #include "sp-text.h"
29 #include "sp-item-group.h"
30 #include "style.h"
31 #include "inkscape.h"
32 #include "document.h"
33 #include "message-stack.h"
34 #include "selection.h"
35 #include "desktop-handles.h"
36 #include "desktop.h"
37 #include "display/canvas-bpath.h"
38 #include "display/curve.h"
39 #include <glibmm/i18n.h>
40 #include "prefs-utils.h"
42 #include "libnr/n-art-bpath.h"
43 #include "libnr/nr-path.h"
44 #include "xml/repr.h"
45 #include "xml/repr-sorting.h"
47 #include <libnr/nr-matrix-fns.h>
48 #include <libnr/nr-matrix-ops.h>
49 #include <libnr/nr-matrix-translate-ops.h>
50 #include <libnr/nr-scale-matrix-ops.h>
52 #include "livarot/Path.h"
53 #include "livarot/Shape.h"
55 #include "splivarot.h"
57 bool Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who);
59 void sp_selected_path_boolop(bool_op bop, const unsigned int verb=SP_VERB_NONE, const Glib::ustring description="");
60 void sp_selected_path_do_offset(bool expand, double prefOffset);
61 void sp_selected_path_create_offset_object(int expand, bool updating);
63 void
64 sp_selected_path_union()
65 {
66 sp_selected_path_boolop(bool_op_union, SP_VERB_SELECTION_UNION, _("Union"));
67 }
69 void
70 sp_selected_path_intersect()
71 {
72 sp_selected_path_boolop(bool_op_inters, SP_VERB_SELECTION_INTERSECT, _("Intersection"));
73 }
75 void
76 sp_selected_path_diff()
77 {
78 sp_selected_path_boolop(bool_op_diff, SP_VERB_SELECTION_DIFF, _("Difference"));
79 }
81 void
82 sp_selected_path_symdiff()
83 {
84 sp_selected_path_boolop(bool_op_symdiff, SP_VERB_SELECTION_SYMDIFF, _("Exclusion"));
85 }
86 void
87 sp_selected_path_cut()
88 {
89 sp_selected_path_boolop(bool_op_cut, SP_VERB_SELECTION_CUT, _("Division"));
90 }
91 void
92 sp_selected_path_slice()
93 {
94 sp_selected_path_boolop(bool_op_slice, SP_VERB_SELECTION_SLICE, _("Cut path"));
95 }
98 // boolean operations
99 // take the source paths from the file, do the operation, delete the originals and add the results
100 void
101 sp_selected_path_boolop(bool_op bop, const unsigned int verb, const Glib::ustring description)
102 {
103 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
105 Inkscape::Selection *selection = sp_desktop_selection(desktop);
107 GSList *il = (GSList *) selection->itemList();
109 if (g_slist_length(il) < 2) {
110 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 2 paths</b> to perform a boolean operation."));
111 return;
112 }
114 if (g_slist_length(il) > 2) {
115 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
116 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>exactly 2 paths</b> to perform difference, XOR, division, or path cut."));
117 return;
118 }
119 }
121 // reverseOrderForOp marks whether the order of the list is the top->down order
122 // it's only used when there are 2 objects, and for operations who need to know the
123 // topmost object (differences, cuts)
124 bool reverseOrderForOp = false;
126 // mettre les elements de la liste dans l'ordre pour ces operations
127 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice) {
128 // check in the tree to find which element of the selection list is topmost (for 2-operand commands only)
129 Inkscape::XML::Node *a = SP_OBJECT_REPR(il->data);
130 Inkscape::XML::Node *b = SP_OBJECT_REPR(il->next->data);
132 if (a == NULL || b == NULL) {
133 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."));
134 return;
135 }
137 if (Ancetre(a, b)) {
138 // a is the parent of b, already in the proper order
139 } else if (Ancetre(b, a)) {
140 // reverse order
141 reverseOrderForOp = true;
142 } else {
144 // objects are not in parent/child relationship;
145 // find their lowest common ancestor
146 Inkscape::XML::Node *dad = LCA(a, b);
147 if (dad == NULL) {
148 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."));
149 return;
150 }
152 // find the children of the LCA that lead from it to the a and b
153 Inkscape::XML::Node *as = AncetreFils(a, dad);
154 Inkscape::XML::Node *bs = AncetreFils(b, dad);
156 // find out which comes first
157 for (Inkscape::XML::Node *child = dad->firstChild(); child; child = child->next()) {
158 if (child == as) {
159 /* a first, so reverse. */
160 reverseOrderForOp = true;
161 break;
162 }
163 if (child == bs)
164 break;
165 }
166 }
167 }
169 il = g_slist_copy(il);
171 // first check if all the input objects have shapes
172 // otherwise bail out
173 for (GSList *l = il; l != NULL; l = l->next)
174 {
175 SPItem *item = SP_ITEM(l->data);
176 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
177 {
178 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("One of the objects is <b>not a path</b>, cannot perform boolean operation."));
179 g_slist_free(il);
180 return;
181 }
182 }
184 // extract the livarot Paths from the source objects
185 // also get the winding rule specified in the style
186 int nbOriginaux = g_slist_length(il);
187 std::vector<Path *> originaux(nbOriginaux);
188 std::vector<FillRule> origWind(nbOriginaux);
189 int curOrig;
190 {
191 curOrig = 0;
192 for (GSList *l = il; l != NULL; l = l->next)
193 {
194 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(il->data), "style");
195 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
196 if (val && strcmp(val, "nonzero") == 0) {
197 origWind[curOrig]= fill_nonZero;
198 } else if (val && strcmp(val, "evenodd") == 0) {
199 origWind[curOrig]= fill_oddEven;
200 } else {
201 origWind[curOrig]= fill_nonZero;
202 }
204 originaux[curOrig] = Path_for_item((SPItem *) l->data, true, true);
205 if (originaux[curOrig] == NULL || originaux[curOrig]->descr_cmd.size() <= 1)
206 {
207 for (int i = curOrig; i >= 0; i--) delete originaux[i];
208 g_slist_free(il);
209 return;
210 }
211 curOrig++;
212 }
213 }
214 // reverse if needed
215 // note that the selection list keeps its order
216 if ( reverseOrderForOp ) {
217 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
218 FillRule swai=origWind[0]; origWind[0]=origWind[1]; origWind[1]=swai;
219 }
221 // and work
222 // some temporary instances, first
223 Shape *theShapeA = new Shape;
224 Shape *theShapeB = new Shape;
225 Shape *theShape = new Shape;
226 Path *res = new Path;
227 res->SetBackData(false);
228 Path::cut_position *toCut=NULL;
229 int nbToCut=0;
231 if ( bop == bool_op_inters || bop == bool_op_union || bop == bool_op_diff || bop == bool_op_symdiff ) {
232 // true boolean op
233 // get the polygons of each path, with the winding rule specified, and apply the operation iteratively
234 originaux[0]->ConvertWithBackData(0.1);
236 originaux[0]->Fill(theShape, 0);
238 theShapeA->ConvertToShape(theShape, origWind[0]);
240 curOrig = 1;
241 for (GSList *l = il->next; l != NULL; l = l->next) {
242 originaux[curOrig]->ConvertWithBackData(0.1);
244 originaux[curOrig]->Fill(theShape, curOrig);
246 theShapeB->ConvertToShape(theShape, origWind[curOrig]);
248 // les elements arrivent en ordre inverse dans la liste
249 theShape->Booleen(theShapeB, theShapeA, bop);
251 {
252 Shape *swap = theShape;
253 theShape = theShapeA;
254 theShapeA = swap;
255 }
256 curOrig++;
257 }
259 {
260 Shape *swap = theShape;
261 theShape = theShapeA;
262 theShapeA = swap;
263 }
265 } else if ( bop == bool_op_cut ) {
266 // cuts= sort of a bastard boolean operation, thus not the axact same modus operandi
267 // technically, the cut path is not necessarily a polygon (thus has no winding rule)
268 // it is just uncrossed, and cleaned from duplicate edges and points
269 // then it's fed to Booleen() which will uncross it against the other path
270 // then comes the trick: each edge of the cut path is duplicated (one in each direction),
271 // thus making a polygon. the weight of the edges of the cut are all 0, but
272 // the Booleen need to invert the ones inside the source polygon (for the subsequent
273 // ConvertToForme)
275 // the cut path needs to have the highest pathID in the back data
276 // that's how the Booleen() function knows it's an edge of the cut
278 // FIXME: this gives poor results, the final paths are full of extraneous nodes. Decreasing
279 // ConvertWithBackData parameter below simply increases the number of nodes, so for now I
280 // left it at 1.0. Investigate replacing this by a combination of difference and
281 // intersection of the same two paths. -- bb
282 {
283 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
284 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
285 }
286 originaux[0]->ConvertWithBackData(1.0);
288 originaux[0]->Fill(theShape, 0);
290 theShapeA->ConvertToShape(theShape, origWind[0]);
292 originaux[1]->ConvertWithBackData(1.0);
294 originaux[1]->Fill(theShape, 1,false,false,false); //do not closeIfNeeded
296 theShapeB->ConvertToShape(theShape, fill_justDont); // fill_justDont doesn't computes winding numbers
298 // les elements arrivent en ordre inverse dans la liste
299 theShape->Booleen(theShapeB, theShapeA, bool_op_cut, 1);
301 } else if ( bop == bool_op_slice ) {
302 // slice is not really a boolean operation
303 // you just put the 2 shapes in a single polygon, uncross it
304 // the points where the degree is > 2 are intersections
305 // just check it's an intersection on the path you want to cut, and keep it
306 // the intersections you have found are then fed to ConvertPositionsToMoveTo() which will
307 // make new subpath at each one of these positions
308 // inversion pour l'op\8eration
309 {
310 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
311 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
312 }
313 originaux[0]->ConvertWithBackData(1.0);
315 originaux[0]->Fill(theShapeA, 0,false,false,false); // don't closeIfNeeded
317 originaux[1]->ConvertWithBackData(1.0);
319 originaux[1]->Fill(theShapeA, 1,true,false,false);// don't closeIfNeeded and just dump in the shape, don't reset it
321 theShape->ConvertToShape(theShapeA, fill_justDont);
323 if ( theShape->hasBackData() ) {
324 // should always be the case, but ya never know
325 {
326 for (int i = 0; i < theShape->numberOfPoints(); i++) {
327 if ( theShape->getPoint(i).totalDegree() > 2 ) {
328 // possibly an intersection
329 // we need to check that at least one edge from the source path is incident to it
330 // before we declare it's an intersection
331 int cb = theShape->getPoint(i).incidentEdge[FIRST];
332 int nbOrig=0;
333 int nbOther=0;
334 int piece=-1;
335 float t=0.0;
336 while ( cb >= 0 && cb < theShape->numberOfEdges() ) {
337 if ( theShape->ebData[cb].pathID == 0 ) {
338 // the source has an edge incident to the point, get its position on the path
339 piece=theShape->ebData[cb].pieceID;
340 if ( theShape->getEdge(cb).st == i ) {
341 t=theShape->ebData[cb].tSt;
342 } else {
343 t=theShape->ebData[cb].tEn;
344 }
345 nbOrig++;
346 }
347 if ( theShape->ebData[cb].pathID == 1 ) nbOther++; // the cut is incident to this point
348 cb=theShape->NextAt(i, cb);
349 }
350 if ( nbOrig > 0 && nbOther > 0 ) {
351 // point incident to both path and cut: an intersection
352 // note that you only keep one position on the source; you could have degenerate
353 // cases where the source crosses itself at this point, and you wouyld miss an intersection
354 toCut=(Path::cut_position*)realloc(toCut, (nbToCut+1)*sizeof(Path::cut_position));
355 toCut[nbToCut].piece=piece;
356 toCut[nbToCut].t=t;
357 nbToCut++;
358 }
359 }
360 }
361 }
362 {
363 // i think it's useless now
364 int i = theShape->numberOfEdges() - 1;
365 for (;i>=0;i--) {
366 if ( theShape->ebData[i].pathID == 1 ) {
367 theShape->SubEdge(i);
368 }
369 }
370 }
372 }
373 }
375 int* nesting=NULL;
376 int* conts=NULL;
377 int nbNest=0;
378 // pour compenser le swap juste avant
379 if ( bop == bool_op_slice ) {
380 // theShape->ConvertToForme(res, nbOriginaux, originaux, true);
381 // res->ConvertForcedToMoveTo();
382 res->Copy(originaux[0]);
383 res->ConvertPositionsToMoveTo(nbToCut, toCut); // cut where you found intersections
384 free(toCut);
385 } else if ( bop == bool_op_cut ) {
386 // il faut appeler pour desallouer PointData (pas vital, mais bon)
387 // the Booleen() function did not deallocated the point_data array in theShape, because this
388 // function needs it.
389 // this function uses the point_data to get the winding number of each path (ie: is a hole or not)
390 // for later reconstruction in objects, you also need to extract which path is parent of holes (nesting info)
391 theShape->ConvertToFormeNested(res, nbOriginaux, &originaux[0], 1, nbNest, nesting, conts);
392 } else {
393 theShape->ConvertToForme(res, nbOriginaux, &originaux[0]);
394 }
396 delete theShape;
397 delete theShapeA;
398 delete theShapeB;
399 for (int i = 0; i < nbOriginaux; i++) delete originaux[i];
401 if (res->descr_cmd.size() <= 1)
402 {
403 // only one command, presumably a moveto: it isn't a path
404 for (GSList *l = il; l != NULL; l = l->next)
405 {
406 SP_OBJECT(l->data)->deleteObject();
407 }
408 sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
409 description);
410 selection->clear();
412 delete res;
413 g_slist_free(il);
414 return;
415 }
417 // remember important aspects of the source path, to be restored
418 Inkscape::XML::Node *repr_source;
419 if ( bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
420 if (reverseOrderForOp) {
421 repr_source = SP_OBJECT_REPR(il->data);
422 } else {
423 repr_source = SP_OBJECT_REPR(il->next->data);
424 }
425 } else {
426 // find out the bottom object
427 GSList *sorted = g_slist_copy((GSList *) selection->reprList());
429 sorted = g_slist_sort(sorted, (GCompareFunc) sp_repr_compare_position);
430 repr_source = ((Inkscape::XML::Node *) sorted->data);
431 g_slist_free(sorted);
432 }
433 gint pos = repr_source->position();
434 Inkscape::XML::Node *parent = sp_repr_parent(repr_source);
435 gchar const *id = repr_source->attribute("id");
436 gchar const *style = repr_source->attribute("style");
437 gchar const *mask = repr_source->attribute("mask");
438 gchar const *clip_path = repr_source->attribute("clip-path");
441 // remove source paths
442 selection->clear();
443 for (GSList *l = il; l != NULL; l = l->next) {
444 // if this is the bottommost object,
445 if (!strcmp(SP_OBJECT_REPR(l->data)->attribute("id"), id)) {
446 // delete it so that its clones don't get alerted; this object will be restored shortly, with the same id
447 SP_OBJECT(l->data)->deleteObject(false);
448 } else {
449 // delete the object for real, so that its clones can take appropriate action
450 SP_OBJECT(l->data)->deleteObject();
451 }
452 }
453 g_slist_free(il);
455 // premultiply by the inverse of parent's repr
456 SPItem *parent_item = SP_ITEM(sp_desktop_document(desktop)->getObjectByRepr(parent));
457 NR::Matrix local = sp_item_i2doc_affine(parent_item);
458 gchar affinestr[80];
459 gchar *transform = NULL;
460 if (!local.test_identity() && sp_svg_transform_write(affinestr, 79, local.inverse())) {
461 transform = affinestr;
462 }
464 // now that we have the result, add it on the canvas
465 if ( bop == bool_op_cut || bop == bool_op_slice ) {
466 int nbRP=0;
467 Path** resPath;
468 if ( bop == bool_op_slice ) {
469 // there are moveto's at each intersection, but it's still one unique path
470 // so break it down and add each subpath independently
471 // we could call break_apart to do this, but while we have the description...
472 resPath=res->SubPaths(nbRP, false);
473 } else {
474 // cut operation is a bit wicked: you need to keep holes
475 // that's why you needed the nesting
476 // ConvertToFormeNested() dumped all the subpath in a single Path "res", so we need
477 // to get the path for each part of the polygon. that's why you need the nesting info:
478 // to know in wich subpath to add a subpath
479 resPath=res->SubPathsWithNesting(nbRP, true, nbNest, nesting, conts);
481 // cleaning
482 if ( conts ) free(conts);
483 if ( nesting ) free(nesting);
484 }
486 // add all the pieces resulting from cut or slice
487 for (int i=0;i<nbRP;i++) {
488 gchar *d = resPath[i]->svg_dump_path();
490 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
491 repr->setAttribute("style", style);
492 if (mask)
493 repr->setAttribute("mask", mask);
494 if (clip_path)
495 repr->setAttribute("clip-path", clip_path);
497 repr->setAttribute("d", d);
498 g_free(d);
500 // for slice, remove fill
501 if (bop == bool_op_slice) {
502 SPCSSAttr *css;
504 css = sp_repr_css_attr_new();
505 sp_repr_css_set_property(css, "fill", "none");
507 sp_repr_css_change(repr, css, "style");
509 sp_repr_css_attr_unref(css);
510 }
512 // we assign the same id on all pieces, but it on adding to document, it will be changed on all except one
513 // this means it's basically random which of the pieces inherits the original's id and clones
514 // a better algorithm might figure out e.g. the biggest piece
515 repr->setAttribute("id", id);
517 repr->setAttribute("transform", transform);
519 // add the new repr to the parent
520 parent->appendChild(repr);
522 // move to the saved position
523 repr->setPosition(pos > 0 ? pos : 0);
525 selection->add(repr);
526 Inkscape::GC::release(repr);
528 delete resPath[i];
529 }
530 if ( resPath ) free(resPath);
532 } else {
533 gchar *d = res->svg_dump_path();
535 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
536 repr->setAttribute("style", style);
538 if ( mask )
539 repr->setAttribute("mask", mask);
541 if ( clip_path )
542 repr->setAttribute("clip-path", clip_path);
544 repr->setAttribute("d", d);
545 g_free(d);
547 repr->setAttribute("transform", transform);
549 repr->setAttribute("id", id);
550 parent->appendChild(repr);
551 repr->setPosition(pos > 0 ? pos : 0);
553 selection->add(repr);
554 Inkscape::GC::release(repr);
555 }
557 sp_document_done(sp_desktop_document(desktop), verb, description);
559 delete res;
560 }
563 void
564 sp_selected_path_outline()
565 {
566 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
568 Inkscape::Selection *selection = sp_desktop_selection(desktop);
570 if (selection->isEmpty()) {
571 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>stroked path(s)</b> to convert stroke to path."));
572 return;
573 }
575 bool did = false;
577 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
578 items != NULL;
579 items = items->next) {
581 SPItem *item = (SPItem *) items->data;
583 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
584 continue;
586 SPCurve *curve = NULL;
587 if (SP_IS_SHAPE(item)) {
588 curve = sp_shape_get_curve(SP_SHAPE(item));
589 if (curve == NULL)
590 continue;
591 }
592 if (SP_IS_TEXT(item)) {
593 curve = SP_TEXT(item)->getNormalizedBpath();
594 if (curve == NULL)
595 continue;
596 }
598 { // pas de stroke pas de chocolat
599 SPCSSAttr *css = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
600 gchar const *val = sp_repr_css_property(css, "stroke", NULL);
602 if (val == NULL || strcmp(val, "none") == 0) {
603 sp_curve_unref(curve);
604 continue;
605 }
606 }
608 // remember old stroke style, to be set on fill
609 SPCSSAttr *ncss;
610 {
611 SPCSSAttr *ocss = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
612 gchar const *val = sp_repr_css_property(ocss, "stroke", NULL);
613 gchar const *opac = sp_repr_css_property(ocss, "stroke-opacity", NULL);
615 ncss = sp_repr_css_attr_new();
617 sp_repr_css_set_property(ncss, "stroke", "none");
618 sp_repr_css_set_property(ncss, "stroke-opacity", "1.0");
619 sp_repr_css_set_property(ncss, "fill", val);
620 if ( opac ) {
621 sp_repr_css_set_property(ncss, "fill-opacity", opac);
622 } else {
623 sp_repr_css_set_property(ncss, "fill-opacity", "1.0");
624 }
625 sp_repr_css_unset_property(ncss, "marker-start");
626 sp_repr_css_unset_property(ncss, "marker-mid");
627 sp_repr_css_unset_property(ncss, "marker-end");
628 }
630 NR::Matrix const transform(item->transform);
631 float const scale = transform.expansion();
632 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
633 SPStyle *i_style = SP_OBJECT(item)->style;
635 float o_width, o_miter;
636 JoinType o_join;
637 ButtType o_butt;
639 {
640 int jointype, captype;
642 jointype = i_style->stroke_linejoin.computed;
643 captype = i_style->stroke_linecap.computed;
644 o_width = i_style->stroke_width.computed;
646 switch (jointype) {
647 case SP_STROKE_LINEJOIN_MITER:
648 o_join = join_pointy;
649 break;
650 case SP_STROKE_LINEJOIN_ROUND:
651 o_join = join_round;
652 break;
653 default:
654 o_join = join_straight;
655 break;
656 }
658 switch (captype) {
659 case SP_STROKE_LINECAP_SQUARE:
660 o_butt = butt_square;
661 break;
662 case SP_STROKE_LINECAP_ROUND:
663 o_butt = butt_round;
664 break;
665 default:
666 o_butt = butt_straight;
667 break;
668 }
670 if (o_width < 0.1)
671 o_width = 0.1;
672 o_miter = i_style->stroke_miterlimit.value * o_width;
673 }
675 Path *orig = Path_for_item(item, false);
676 if (orig == NULL) {
677 g_free(style);
678 sp_curve_unref(curve);
679 continue;
680 }
682 Path *res = new Path;
683 res->SetBackData(false);
685 if (i_style->stroke_dash.n_dash) {
686 // For dashed strokes, use Stroke method, because Outline can't do dashes
687 // However Stroke adds lots of extra nodes _or_ makes the path crooked, so consider this a temporary workaround
689 orig->ConvertWithBackData(0.1);
691 orig->DashPolylineFromStyle(i_style, scale, 0);
693 Shape* theShape = new Shape;
694 orig->Stroke(theShape, false, 0.5*o_width, o_join, o_butt,
695 0.5 * o_miter);
696 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
698 Shape *theRes = new Shape;
700 theRes->ConvertToShape(theShape, fill_positive);
702 Path *originaux[1];
703 originaux[0] = res;
704 theRes->ConvertToForme(orig, 1, originaux);
706 res->Coalesce(5.0);
708 delete theShape;
709 delete theRes;
711 } else {
713 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
715 orig->Coalesce(0.5 * o_width);
717 Shape *theShape = new Shape;
718 Shape *theRes = new Shape;
720 res->ConvertWithBackData(1.0);
721 res->Fill(theShape, 0);
722 theRes->ConvertToShape(theShape, fill_positive);
724 Path *originaux[1];
725 originaux[0] = res;
726 theRes->ConvertToForme(orig, 1, originaux);
728 delete theShape;
729 delete theRes;
730 }
732 if (orig->descr_cmd.size() <= 1) {
733 // ca a merd\8e, ou bien le resultat est vide
734 delete res;
735 delete orig;
736 g_free(style);
737 continue;
738 }
740 did = true;
742 // remember the position of the item
743 gint pos = SP_OBJECT_REPR(item)->position();
744 // remember parent
745 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
746 // remember id
747 char const *id = SP_OBJECT_REPR(item)->attribute("id");
749 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
751 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
753 // restore old style
754 repr->setAttribute("style", style);
756 // set old stroke style on fill
757 sp_repr_css_change(repr, ncss, "style");
759 sp_repr_css_attr_unref(ncss);
761 gchar *str = orig->svg_dump_path();
762 repr->setAttribute("d", str);
763 g_free(str);
766 if (SP_IS_SHAPE(item) && sp_shape_has_markers (SP_SHAPE(item))) {
768 Inkscape::XML::Node *g_repr = sp_repr_new("svg:g");
770 // add the group to the parent
771 parent->appendChild(g_repr);
772 // move to the saved position
773 g_repr->setPosition(pos > 0 ? pos : 0);
775 g_repr->appendChild(repr);
776 repr->setAttribute("id", id);
777 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
778 sp_item_write_transform(newitem, repr, transform);
780 SPShape *shape = SP_SHAPE(item);
782 for (NArtBpath* bp = SP_CURVE_BPATH(shape->curve); bp->code != NR_END; bp++) {
783 for (int m = SP_MARKER_LOC_START; m < SP_MARKER_LOC_QTY; m++) {
784 if (sp_shape_marker_required (shape, m, bp)) {
786 SPMarker* marker = SP_MARKER (shape->marker[m]);
787 SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (shape->marker[m]));
789 NR::Matrix tr(sp_shape_marker_get_transform(shape, bp));
791 if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
792 tr = NR::scale(i_style->stroke_width.computed) * tr;
793 }
795 // total marker transform
796 tr = marker_item->transform * marker->c2p * tr * transform;
798 if (SP_OBJECT_REPR(marker_item)) {
799 Inkscape::XML::Node *m_repr = SP_OBJECT_REPR(marker_item)->duplicate();
800 g_repr->appendChild(m_repr);
801 SPItem *marker_item = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(m_repr);
802 sp_item_write_transform(marker_item, m_repr, tr);
803 }
804 }
805 }
806 }
809 selection->add(g_repr);
811 Inkscape::GC::release(g_repr);
814 } else {
816 // add the new repr to the parent
817 parent->appendChild(repr);
819 // move to the saved position
820 repr->setPosition(pos > 0 ? pos : 0);
822 repr->setAttribute("id", id);
824 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
825 sp_item_write_transform(newitem, repr, transform);
827 selection->add(repr);
829 }
831 Inkscape::GC::release(repr);
833 sp_curve_unref(curve);
834 selection->remove(item);
835 SP_OBJECT(item)->deleteObject(false);
837 }
839 delete res;
840 delete orig;
841 g_free(style);
843 }
845 if (did) {
846 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_OUTLINE,
847 _("Convert stroke to path"));
848 } else {
849 // TRANSLATORS: "to outline" means "to convert stroke to path"
850 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No stroked paths</b> in the selection."));
851 return;
852 }
853 }
856 void
857 sp_selected_path_offset()
858 {
859 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
861 sp_selected_path_do_offset(true, prefOffset);
862 }
863 void
864 sp_selected_path_inset()
865 {
866 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
868 sp_selected_path_do_offset(false, prefOffset);
869 }
871 void
872 sp_selected_path_offset_screen(double pixels)
873 {
874 sp_selected_path_do_offset(true, pixels / SP_ACTIVE_DESKTOP->current_zoom());
875 }
877 void
878 sp_selected_path_inset_screen(double pixels)
879 {
880 sp_selected_path_do_offset(false, pixels / SP_ACTIVE_DESKTOP->current_zoom());
881 }
884 void sp_selected_path_create_offset_object_zero()
885 {
886 sp_selected_path_create_offset_object(0, false);
887 }
889 void sp_selected_path_create_offset()
890 {
891 sp_selected_path_create_offset_object(1, false);
892 }
893 void sp_selected_path_create_inset()
894 {
895 sp_selected_path_create_offset_object(-1, false);
896 }
898 void sp_selected_path_create_updating_offset_object_zero()
899 {
900 sp_selected_path_create_offset_object(0, true);
901 }
903 void sp_selected_path_create_updating_offset()
904 {
905 sp_selected_path_create_offset_object(1, true);
906 }
907 void sp_selected_path_create_updating_inset()
908 {
909 sp_selected_path_create_offset_object(-1, true);
910 }
912 void
913 sp_selected_path_create_offset_object(int expand, bool updating)
914 {
915 Inkscape::Selection *selection;
916 Inkscape::XML::Node *repr;
917 SPItem *item;
918 SPCurve *curve;
919 gchar *style, *str;
920 SPDesktop *desktop;
921 float o_width, o_miter;
922 JoinType o_join;
923 ButtType o_butt;
925 curve = NULL;
927 desktop = SP_ACTIVE_DESKTOP;
929 selection = sp_desktop_selection(desktop);
931 item = selection->singleItem();
933 if (item == NULL || ( !SP_IS_SHAPE(item) && !SP_IS_TEXT(item) ) ) {
934 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Selected object is <b>not a path</b>, cannot inset/outset."));
935 return;
936 }
937 if (SP_IS_SHAPE(item))
938 {
939 curve = sp_shape_get_curve(SP_SHAPE(item));
940 if (curve == NULL)
941 return;
942 }
943 if (SP_IS_TEXT(item))
944 {
945 curve = SP_TEXT(item)->getNormalizedBpath();
946 if (curve == NULL)
947 return;
948 }
950 NR::Matrix const transform(item->transform);
952 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
954 style = g_strdup(SP_OBJECT(item)->repr->attribute("style"));
956 // remember the position of the item
957 gint pos = SP_OBJECT_REPR(item)->position();
958 // remember parent
959 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
961 {
962 SPStyle *i_style = SP_OBJECT(item)->style;
963 int jointype, captype;
965 jointype = i_style->stroke_linejoin.value;
966 captype = i_style->stroke_linecap.value;
967 o_width = i_style->stroke_width.computed;
968 if (jointype == SP_STROKE_LINEJOIN_MITER)
969 {
970 o_join = join_pointy;
971 }
972 else if (jointype == SP_STROKE_LINEJOIN_ROUND)
973 {
974 o_join = join_round;
975 }
976 else
977 {
978 o_join = join_straight;
979 }
980 if (captype == SP_STROKE_LINECAP_SQUARE)
981 {
982 o_butt = butt_square;
983 }
984 else if (captype == SP_STROKE_LINECAP_ROUND)
985 {
986 o_butt = butt_round;
987 }
988 else
989 {
990 o_butt = butt_straight;
991 }
993 {
994 double prefOffset = 1.0;
995 prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", prefOffset);
996 o_width = prefOffset;
997 }
999 if (o_width < 0.01)
1000 o_width = 0.01;
1001 o_miter = i_style->stroke_miterlimit.value * o_width;
1002 }
1004 Path *orig = Path_for_item(item, true, false);
1005 if (orig == NULL)
1006 {
1007 g_free(style);
1008 sp_curve_unref(curve);
1009 return;
1010 }
1012 Path *res = new Path;
1013 res->SetBackData(false);
1015 {
1016 Shape *theShape = new Shape;
1017 Shape *theRes = new Shape;
1019 orig->ConvertWithBackData(1.0);
1020 orig->Fill(theShape, 0);
1022 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1023 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1024 if (val && strcmp(val, "nonzero") == 0)
1025 {
1026 theRes->ConvertToShape(theShape, fill_nonZero);
1027 }
1028 else if (val && strcmp(val, "evenodd") == 0)
1029 {
1030 theRes->ConvertToShape(theShape, fill_oddEven);
1031 }
1032 else
1033 {
1034 theRes->ConvertToShape(theShape, fill_nonZero);
1035 }
1037 Path *originaux[1];
1038 originaux[0] = orig;
1039 theRes->ConvertToForme(res, 1, originaux);
1041 delete theShape;
1042 delete theRes;
1043 }
1045 sp_curve_unref(curve);
1047 if (res->descr_cmd.size() <= 1)
1048 {
1049 // pas vraiment de points sur le resultat
1050 // donc il ne reste rien
1051 sp_document_done(sp_desktop_document(desktop),
1052 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1053 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1054 (updating ? _("Create linked offset")
1055 : _("Create dynamic offset")));
1056 selection->clear();
1058 delete res;
1059 delete orig;
1060 g_free(style);
1061 return;
1062 }
1064 {
1065 gchar tstr[80];
1067 tstr[79] = '\0';
1069 repr = sp_repr_new("svg:path");
1070 repr->setAttribute("sodipodi:type", "inkscape:offset");
1071 sp_repr_set_svg_double(repr, "inkscape:radius", ( expand > 0
1072 ? o_width
1073 : expand < 0
1074 ? -o_width
1075 : 0 ));
1077 str = res->svg_dump_path();
1078 repr->setAttribute("inkscape:original", str);
1079 g_free(str);
1081 if ( updating ) {
1082 char const *id = SP_OBJECT(item)->repr->attribute("id");
1083 char const *uri = g_strdup_printf("#%s", id);
1084 repr->setAttribute("xlink:href", uri);
1085 g_free((void *) uri);
1086 } else {
1087 repr->setAttribute("inkscape:href", NULL);
1088 }
1090 repr->setAttribute("style", style);
1092 // add the new repr to the parent
1093 parent->appendChild(repr);
1095 // move to the saved position
1096 repr->setPosition(pos > 0 ? pos : 0);
1098 SPItem *nitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1100 if ( updating ) {
1101 // on conserve l'original
1102 // we reapply the transform to the original (offset will feel it)
1103 sp_item_write_transform(item, SP_OBJECT_REPR(item), transform);
1104 } else {
1105 // delete original, apply the transform to the offset
1106 SP_OBJECT(item)->deleteObject(false);
1107 sp_item_write_transform(nitem, repr, transform);
1108 }
1110 // The object just created from a temporary repr is only a seed.
1111 // We need to invoke its write which will update its real repr (in particular adding d=)
1112 SP_OBJECT(nitem)->updateRepr();
1114 Inkscape::GC::release(repr);
1116 selection->set(nitem);
1117 }
1119 sp_document_done(sp_desktop_document(desktop),
1120 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1121 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1122 (updating ? _("Create linked offset")
1123 : _("Create dynamic offset")));
1125 delete res;
1126 delete orig;
1128 g_free(style);
1129 }
1142 void
1143 sp_selected_path_do_offset(bool expand, double prefOffset)
1144 {
1145 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1147 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1149 if (selection->isEmpty()) {
1150 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to inset/outset."));
1151 return;
1152 }
1154 bool did = false;
1156 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1157 items != NULL;
1158 items = items->next) {
1160 SPItem *item = (SPItem *) items->data;
1162 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
1163 continue;
1165 SPCurve *curve = NULL;
1166 if (SP_IS_SHAPE(item)) {
1167 curve = sp_shape_get_curve(SP_SHAPE(item));
1168 if (curve == NULL)
1169 continue;
1170 }
1171 if (SP_IS_TEXT(item)) {
1172 curve = SP_TEXT(item)->getNormalizedBpath();
1173 if (curve == NULL)
1174 continue;
1175 }
1177 NR::Matrix const transform(item->transform);
1179 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1181 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1183 float o_width, o_miter;
1184 JoinType o_join;
1185 ButtType o_butt;
1187 {
1188 SPStyle *i_style = SP_OBJECT(item)->style;
1189 int jointype, captype;
1191 jointype = i_style->stroke_linejoin.value;
1192 captype = i_style->stroke_linecap.value;
1193 o_width = i_style->stroke_width.computed;
1195 switch (jointype) {
1196 case SP_STROKE_LINEJOIN_MITER:
1197 o_join = join_pointy;
1198 break;
1199 case SP_STROKE_LINEJOIN_ROUND:
1200 o_join = join_round;
1201 break;
1202 default:
1203 o_join = join_straight;
1204 break;
1205 }
1207 switch (captype) {
1208 case SP_STROKE_LINECAP_SQUARE:
1209 o_butt = butt_square;
1210 break;
1211 case SP_STROKE_LINECAP_ROUND:
1212 o_butt = butt_round;
1213 break;
1214 default:
1215 o_butt = butt_straight;
1216 break;
1217 }
1219 o_width = prefOffset;
1221 if (o_width < 0.1)
1222 o_width = 0.1;
1223 o_miter = i_style->stroke_miterlimit.value * o_width;
1224 }
1226 Path *orig = Path_for_item(item, false);
1227 if (orig == NULL) {
1228 g_free(style);
1229 sp_curve_unref(curve);
1230 continue;
1231 }
1233 Path *res = new Path;
1234 res->SetBackData(false);
1236 {
1237 Shape *theShape = new Shape;
1238 Shape *theRes = new Shape;
1240 orig->ConvertWithBackData(0.03);
1241 orig->Fill(theShape, 0);
1243 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1244 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1245 if (val && strcmp(val, "nonzero") == 0)
1246 {
1247 theRes->ConvertToShape(theShape, fill_nonZero);
1248 }
1249 else if (val && strcmp(val, "evenodd") == 0)
1250 {
1251 theRes->ConvertToShape(theShape, fill_oddEven);
1252 }
1253 else
1254 {
1255 theRes->ConvertToShape(theShape, fill_nonZero);
1256 }
1258 // et maintenant: offset
1259 // methode inexacte
1260 /* Path *originaux[1];
1261 originaux[0] = orig;
1262 theRes->ConvertToForme(res, 1, originaux);
1264 if (expand) {
1265 res->OutsideOutline(orig, 0.5 * o_width, o_join, o_butt, o_miter);
1266 } else {
1267 res->OutsideOutline(orig, -0.5 * o_width, o_join, o_butt, o_miter);
1268 }
1270 orig->ConvertWithBackData(1.0);
1271 orig->Fill(theShape, 0);
1272 theRes->ConvertToShape(theShape, fill_positive);
1273 originaux[0] = orig;
1274 theRes->ConvertToForme(res, 1, originaux);
1276 if (o_width >= 0.5) {
1277 // res->Coalesce(1.0);
1278 res->ConvertEvenLines(1.0);
1279 res->Simplify(1.0);
1280 } else {
1281 // res->Coalesce(o_width);
1282 res->ConvertEvenLines(1.0*o_width);
1283 res->Simplify(1.0 * o_width);
1284 } */
1285 // methode par makeoffset
1287 if (expand)
1288 {
1289 theShape->MakeOffset(theRes, o_width, o_join, o_miter);
1290 }
1291 else
1292 {
1293 theShape->MakeOffset(theRes, -o_width, o_join, o_miter);
1294 }
1295 theRes->ConvertToShape(theShape, fill_positive);
1297 res->Reset();
1298 theRes->ConvertToForme(res);
1300 if (o_width >= 1.0)
1301 {
1302 res->ConvertEvenLines(1.0);
1303 res->Simplify(1.0);
1304 }
1305 else
1306 {
1307 res->ConvertEvenLines(1.0*o_width);
1308 res->Simplify(1.0 * o_width);
1309 }
1311 delete theShape;
1312 delete theRes;
1313 }
1315 did = true;
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 selection->remove(item);
1326 SP_OBJECT(item)->deleteObject(false);
1328 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
1330 gchar tstr[80];
1332 tstr[79] = '\0';
1334 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
1336 repr->setAttribute("style", style);
1338 gchar *str = res->svg_dump_path();
1339 repr->setAttribute("d", str);
1340 g_free(str);
1342 // add the new repr to the parent
1343 parent->appendChild(repr);
1345 // move to the saved position
1346 repr->setPosition(pos > 0 ? pos : 0);
1348 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1350 // reapply the transform
1351 sp_item_write_transform(newitem, repr, transform);
1353 repr->setAttribute("id", id);
1355 selection->add(repr);
1357 Inkscape::GC::release(repr);
1358 }
1360 delete orig;
1361 delete res;
1362 }
1364 if (did) {
1365 sp_document_done(sp_desktop_document(desktop),
1366 (expand ? SP_VERB_SELECTION_OFFSET : SP_VERB_SELECTION_INSET),
1367 (expand ? _("Outset path") : _("Inset path")));
1368 } else {
1369 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to inset/outset in the selection."));
1370 return;
1371 }
1372 }
1375 static bool
1376 sp_selected_path_simplify_items(SPDesktop *desktop,
1377 Inkscape::Selection *selection, GSList *items,
1378 float threshold, bool justCoalesce,
1379 float angleLimit, bool breakableAngles,
1380 bool modifySelection);
1383 //return true if we changed something, else false
1384 bool
1385 sp_selected_path_simplify_item(SPDesktop *desktop,
1386 Inkscape::Selection *selection, SPItem *item,
1387 float threshold, bool justCoalesce,
1388 float angleLimit, bool breakableAngles,
1389 gdouble size, bool modifySelection)
1390 {
1391 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1392 return false;
1394 //If this is a group, do the children instead
1395 if (SP_IS_GROUP(item)) {
1396 GSList *items = sp_item_group_item_list(SP_GROUP(item));
1398 return sp_selected_path_simplify_items(desktop, selection, items,
1399 threshold, justCoalesce,
1400 angleLimit, breakableAngles,
1401 false);
1402 }
1405 SPCurve *curve = NULL;
1407 if (SP_IS_SHAPE(item)) {
1408 curve = sp_shape_get_curve(SP_SHAPE(item));
1409 if (!curve)
1410 return false;
1411 }
1413 if (SP_IS_TEXT(item)) {
1414 curve = SP_TEXT(item)->getNormalizedBpath();
1415 if (!curve)
1416 return false;
1417 }
1419 // save the transform, to re-apply it after simplification
1420 NR::Matrix const transform(item->transform);
1422 /*
1423 reset the transform, effectively transforming the item by transform.inverse();
1424 this is necessary so that the item is transformed twice back and forth,
1425 allowing all compensations to cancel out regardless of the preferences
1426 */
1427 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1429 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1430 gchar *mask = g_strdup(SP_OBJECT_REPR(item)->attribute("mask"));
1431 gchar *clip_path = g_strdup(SP_OBJECT_REPR(item)->attribute("clip-path"));
1433 Path *orig = Path_for_item(item, false);
1434 if (orig == NULL) {
1435 g_free(style);
1436 sp_curve_unref(curve);
1437 return false;
1438 }
1440 sp_curve_unref(curve);
1441 // remember the position of the item
1442 gint pos = SP_OBJECT_REPR(item)->position();
1443 // remember parent
1444 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1445 // remember id
1446 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1448 //If a group was selected, to not change the selection list
1449 if (modifySelection)
1450 selection->remove(item);
1452 SP_OBJECT(item)->deleteObject(false);
1454 if ( justCoalesce ) {
1455 orig->Coalesce(threshold * size);
1456 } else {
1457 orig->ConvertEvenLines(threshold * size);
1458 orig->Simplify(threshold * size);
1459 }
1461 Inkscape::XML::Node *repr = sp_repr_new("svg:path");
1463 // restore style, mask and clip-path
1464 repr->setAttribute("style", style);
1465 g_free(style);
1467 if ( mask ) {
1468 repr->setAttribute("mask", mask);
1469 g_free(mask);
1470 }
1472 if ( clip_path ) {
1473 repr->setAttribute("clip-path", clip_path);
1474 g_free(clip_path);
1475 }
1477 // path
1478 gchar *str = orig->svg_dump_path();
1479 repr->setAttribute("d", str);
1480 g_free(str);
1482 // restore id
1483 repr->setAttribute("id", id);
1485 // add the new repr to the parent
1486 parent->appendChild(repr);
1488 // move to the saved position
1489 repr->setPosition(pos > 0 ? pos : 0);
1491 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1493 // reapply the transform
1494 sp_item_write_transform(newitem, repr, transform);
1496 //If we are not in a selected group
1497 if (modifySelection)
1498 selection->add(repr);
1500 Inkscape::GC::release(repr);
1502 // clean up
1503 if (orig) delete orig;
1505 return true;
1506 }
1509 bool
1510 sp_selected_path_simplify_items(SPDesktop *desktop,
1511 Inkscape::Selection *selection, GSList *items,
1512 float threshold, bool justCoalesce,
1513 float angleLimit, bool breakableAngles,
1514 bool modifySelection)
1515 {
1516 bool simplifyIndividualPaths =
1517 (bool) prefs_get_int_attribute("options.simplifyindividualpaths", "value", 0);
1519 gchar *simplificationType;
1520 if (simplifyIndividualPaths) {
1521 simplificationType = "individual paths";
1522 } else {
1523 simplificationType = "as a group";
1524 }
1526 bool didSomething = false;
1528 NR::Rect selectionBbox = selection->bounds();
1529 gdouble selectionSize = L2(selectionBbox.dimensions());
1531 gdouble simplifySize = selectionSize;
1533 int pathsSimplified = 0;
1534 int totalPathCount = g_slist_length(items);
1536 desktop->disableInteraction();
1538 for (; items != NULL; items = items->next) {
1539 SPItem *item = (SPItem *) items->data;
1541 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1542 continue;
1544 if (simplifyIndividualPaths) {
1545 NR::Rect itemBbox = item->invokeBbox(sp_item_i2d_affine(item));
1546 simplifySize = L2(itemBbox.dimensions());
1547 }
1550 pathsSimplified++;
1552 if (pathsSimplified % 20 == 0) {
1553 gchar *message = g_strdup_printf(_("Simplifying %s - <b>%d</b> of <b>%d</b> paths simplified..."), simplificationType, pathsSimplified, totalPathCount);
1554 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, message);
1555 desktop->updateCanvasNow();
1556 }
1558 didSomething |= sp_selected_path_simplify_item(desktop, selection, item,
1559 threshold, justCoalesce, angleLimit, breakableAngles, simplifySize, modifySelection);
1560 }
1562 desktop->enableInteraction();
1564 if (pathsSimplified > 20) {
1565 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, g_strdup_printf(_("Done - <b>%d</b> paths simplified."), pathsSimplified));
1566 }
1568 return didSomething;
1569 }
1571 void
1572 sp_selected_path_simplify_selection(float threshold, bool justCoalesce,
1573 float angleLimit, bool breakableAngles)
1574 {
1575 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1577 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1579 if (selection->isEmpty()) {
1580 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE,
1581 _("Select <b>path(s)</b> to simplify."));
1582 return;
1583 }
1585 GSList *items = g_slist_copy((GSList *) selection->itemList());
1587 bool didSomething = sp_selected_path_simplify_items(desktop, selection,
1588 items, threshold,
1589 justCoalesce,
1590 angleLimit,
1591 breakableAngles, true);
1593 if (didSomething)
1594 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_SIMPLIFY,
1595 _("Simplify"));
1596 else
1597 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to simplify in the selection."));
1599 }
1602 // globals for keeping track of accelerated simplify
1603 static double previousTime = 0.0;
1604 static gdouble simplifyMultiply = 1.0;
1606 void
1607 sp_selected_path_simplify(void)
1608 {
1609 gdouble simplifyThreshold =
1610 prefs_get_double_attribute("options.simplifythreshold", "value", 0.003);
1611 bool simplifyJustCoalesce =
1612 (bool) prefs_get_int_attribute("options.simplifyjustcoalesce", "value", 0);
1614 //Get the current time
1615 GTimeVal currentTimeVal;
1616 g_get_current_time(¤tTimeVal);
1617 double currentTime = currentTimeVal.tv_sec * 1000000 +
1618 currentTimeVal.tv_usec;
1620 //Was the previous call to this function recent? (<0.5 sec)
1621 if (previousTime > 0.0 && currentTime - previousTime < 500000.0) {
1623 // add to the threshold 1/2 of its original value
1624 simplifyMultiply += 0.5;
1625 simplifyThreshold *= simplifyMultiply;
1627 } else {
1628 // reset to the default
1629 simplifyMultiply = 1;
1630 }
1632 //remember time for next call
1633 previousTime = currentTime;
1635 //g_print("%g\n", simplify_threshold);
1637 //Make the actual call
1638 sp_selected_path_simplify_selection(simplifyThreshold,
1639 simplifyJustCoalesce, 0.0, false);
1640 }
1644 // fonctions utilitaires
1646 bool
1647 Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who)
1648 {
1649 if (who == NULL || a == NULL)
1650 return false;
1651 if (who == a)
1652 return true;
1653 return Ancetre(sp_repr_parent(a), who);
1654 }
1656 Path *
1657 Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
1658 {
1659 SPCurve *curve;
1661 if (!item)
1662 return NULL;
1664 if (SP_IS_SHAPE(item))
1665 {
1666 curve = sp_shape_get_curve(SP_SHAPE(item));
1667 }
1668 else if (SP_IS_TEXT(item))
1669 {
1670 curve = SP_TEXT(item)->getNormalizedBpath();
1671 }
1672 else
1673 {
1674 curve = NULL;
1675 }
1677 if (!curve)
1678 return NULL;
1679 NArtBpath *bpath = SP_CURVE_BPATH(curve);
1680 if (bpath == NULL)
1681 return NULL;
1683 if ( doTransformation ) {
1684 if (transformFull)
1685 bpath = nr_artpath_affine(SP_CURVE_BPATH(curve), sp_item_i2doc_affine(item));
1686 else
1687 bpath = nr_artpath_affine(SP_CURVE_BPATH(curve), item->transform);
1688 sp_curve_unref(curve);
1689 curve=NULL;
1690 } else {
1691 bpath=SP_CURVE_BPATH(curve);
1692 }
1694 Path *dest = new Path;
1695 dest->SetBackData(false);
1696 {
1697 int i;
1698 bool closed = false;
1699 float lastX = 0.0;
1700 float lastY = 0.0;
1702 for (i = 0; bpath[i].code != NR_END; i++) {
1703 switch (bpath[i].code) {
1704 case NR_LINETO:
1705 lastX = bpath[i].x3;
1706 lastY = bpath[i].y3;
1707 {
1708 NR::Point tmp(lastX, lastY);
1709 dest->LineTo(tmp);
1710 }
1711 break;
1713 case NR_CURVETO:
1714 {
1715 NR::Point tmp, tms, tme;
1716 tmp[0]=bpath[i].x3;
1717 tmp[1]=bpath[i].y3;
1718 tms[0]=3 * (bpath[i].x1 - lastX);
1719 tms[1]=3 * (bpath[i].y1 - lastY);
1720 tme[0]=3 * (bpath[i].x3 - bpath[i].x2);
1721 tme[1]=3 * (bpath[i].y3 - bpath[i].y2);
1722 dest->CubicTo(tmp,tms,tme);
1723 }
1724 lastX = bpath[i].x3;
1725 lastY = bpath[i].y3;
1726 break;
1728 case NR_MOVETO_OPEN:
1729 case NR_MOVETO:
1730 if (closed)
1731 dest->Close();
1732 closed = (bpath[i].code == NR_MOVETO);
1733 lastX = bpath[i].x3;
1734 lastY = bpath[i].y3;
1735 {
1736 NR::Point tmp(lastX, lastY);
1737 dest->MoveTo(tmp);
1738 }
1739 break;
1740 default:
1741 break;
1742 }
1743 }
1744 if (closed)
1745 dest->Close();
1746 }
1748 if ( doTransformation ) {
1749 if ( bpath ) g_free(bpath);
1750 } else {
1751 sp_curve_unref(curve);
1752 }
1753 return dest;
1754 }
1756 NR::Maybe<Path::cut_position> get_nearest_position_on_Path(Path *path, NR::Point p)
1757 {
1758 //get nearest position on path
1759 Path::cut_position pos = path->PointToCurvilignPosition(p);
1760 return pos;
1761 }
1763 NR::Point get_point_on_Path(Path *path, int piece, double t)
1764 {
1765 NR::Point p;
1766 path->PointAt(piece, t, p);
1767 return p;
1768 }
1771 /*
1772 Local Variables:
1773 mode:c++
1774 c-file-style:"stroustrup"
1775 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1776 indent-tabs-mode:nil
1777 fill-column:99
1778 End:
1779 */
1780 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :