47051be2be132a954340c3d8ee223dccc8e1b068
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 <cstring>
21 #include <string>
22 #include <vector>
23 #include <glib/gmem.h>
24 #include "xml/repr.h"
25 #include "svg/svg.h"
26 #include "sp-path.h"
27 #include "sp-shape.h"
28 #include "sp-image.h"
29 #include "marker.h"
30 #include "enums.h"
31 #include "sp-text.h"
32 #include "sp-flowtext.h"
33 #include "text-editing.h"
34 #include "sp-item-group.h"
35 #include "style.h"
36 #include "inkscape.h"
37 #include "document.h"
38 #include "message-stack.h"
39 #include "selection.h"
40 #include "desktop-handles.h"
41 #include "desktop.h"
42 #include "display/canvas-bpath.h"
43 #include "display/curve.h"
44 #include <glibmm/i18n.h>
45 #include "prefs-utils.h"
47 #include "libnr/n-art-bpath.h"
48 #include "libnr/nr-path.h"
49 #include "xml/repr.h"
50 #include "xml/repr-sorting.h"
51 #include <2geom/pathvector.h>
52 #include <libnr/nr-matrix-fns.h>
53 #include <libnr/nr-matrix-ops.h>
54 #include <libnr/nr-matrix-translate-ops.h>
55 #include <libnr/nr-scale-matrix-ops.h>
56 #include <libnr/n-art-bpath-2geom.h>
57 #include "helper/geom.h"
59 #include "livarot/Path.h"
60 #include "livarot/Shape.h"
62 #include "splivarot.h"
64 bool Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who);
66 void sp_selected_path_boolop(bool_op bop, const unsigned int verb=SP_VERB_NONE, const Glib::ustring description="");
67 void sp_selected_path_do_offset(bool expand, double prefOffset);
68 void sp_selected_path_create_offset_object(int expand, bool updating);
70 void
71 sp_selected_path_union()
72 {
73 sp_selected_path_boolop(bool_op_union, SP_VERB_SELECTION_UNION, _("Union"));
74 }
76 void
77 sp_selected_path_union_skip_undo()
78 {
79 sp_selected_path_boolop(bool_op_union, SP_VERB_NONE, _("Union"));
80 }
82 void
83 sp_selected_path_intersect()
84 {
85 sp_selected_path_boolop(bool_op_inters, SP_VERB_SELECTION_INTERSECT, _("Intersection"));
86 }
88 void
89 sp_selected_path_diff()
90 {
91 sp_selected_path_boolop(bool_op_diff, SP_VERB_SELECTION_DIFF, _("Difference"));
92 }
94 void
95 sp_selected_path_diff_skip_undo()
96 {
97 sp_selected_path_boolop(bool_op_diff, SP_VERB_NONE, _("Difference"));
98 }
100 void
101 sp_selected_path_symdiff()
102 {
103 sp_selected_path_boolop(bool_op_symdiff, SP_VERB_SELECTION_SYMDIFF, _("Exclusion"));
104 }
105 void
106 sp_selected_path_cut()
107 {
108 sp_selected_path_boolop(bool_op_cut, SP_VERB_SELECTION_CUT, _("Division"));
109 }
110 void
111 sp_selected_path_slice()
112 {
113 sp_selected_path_boolop(bool_op_slice, SP_VERB_SELECTION_SLICE, _("Cut path"));
114 }
117 // boolean operations
118 // take the source paths from the file, do the operation, delete the originals and add the results
119 void
120 sp_selected_path_boolop(bool_op bop, const unsigned int verb, const Glib::ustring description)
121 {
122 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
124 Inkscape::Selection *selection = sp_desktop_selection(desktop);
126 GSList *il = (GSList *) selection->itemList();
128 // allow union on a single object for the purpose of removing self overlapse (svn log, revision 13334)
129 if ( (g_slist_length(il) < 2) && (bop != bool_op_union)) {
130 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 2 paths</b> to perform a boolean operation."));
131 return;
132 }
133 else if ( g_slist_length(il) < 1 ) {
134 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 1 path</b> to perform a boolean union."));
135 return;
136 }
138 if (g_slist_length(il) > 2) {
139 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
140 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>exactly 2 paths</b> to perform difference, XOR, division, or path cut."));
141 return;
142 }
143 }
145 // reverseOrderForOp marks whether the order of the list is the top->down order
146 // it's only used when there are 2 objects, and for operations who need to know the
147 // topmost object (differences, cuts)
148 bool reverseOrderForOp = false;
150 // mettre les elements de la liste dans l'ordre pour ces operations
151 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice) {
152 // check in the tree to find which element of the selection list is topmost (for 2-operand commands only)
153 Inkscape::XML::Node *a = SP_OBJECT_REPR(il->data);
154 Inkscape::XML::Node *b = SP_OBJECT_REPR(il->next->data);
156 if (a == NULL || b == NULL) {
157 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."));
158 return;
159 }
161 if (Ancetre(a, b)) {
162 // a is the parent of b, already in the proper order
163 } else if (Ancetre(b, a)) {
164 // reverse order
165 reverseOrderForOp = true;
166 } else {
168 // objects are not in parent/child relationship;
169 // find their lowest common ancestor
170 Inkscape::XML::Node *dad = LCA(a, b);
171 if (dad == NULL) {
172 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."));
173 return;
174 }
176 // find the children of the LCA that lead from it to the a and b
177 Inkscape::XML::Node *as = AncetreFils(a, dad);
178 Inkscape::XML::Node *bs = AncetreFils(b, dad);
180 // find out which comes first
181 for (Inkscape::XML::Node *child = dad->firstChild(); child; child = child->next()) {
182 if (child == as) {
183 /* a first, so reverse. */
184 reverseOrderForOp = true;
185 break;
186 }
187 if (child == bs)
188 break;
189 }
190 }
191 }
193 il = g_slist_copy(il);
195 // first check if all the input objects have shapes
196 // otherwise bail out
197 for (GSList *l = il; l != NULL; l = l->next)
198 {
199 SPItem *item = SP_ITEM(l->data);
200 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item) && !SP_IS_FLOWTEXT(item))
201 {
202 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("One of the objects is <b>not a path</b>, cannot perform boolean operation."));
203 g_slist_free(il);
204 return;
205 }
206 }
208 // extract the livarot Paths from the source objects
209 // also get the winding rule specified in the style
210 int nbOriginaux = g_slist_length(il);
211 std::vector<Path *> originaux(nbOriginaux);
212 std::vector<FillRule> origWind(nbOriginaux);
213 int curOrig;
214 {
215 curOrig = 0;
216 for (GSList *l = il; l != NULL; l = l->next)
217 {
218 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(il->data), "style");
219 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
220 if (val && strcmp(val, "nonzero") == 0) {
221 origWind[curOrig]= fill_nonZero;
222 } else if (val && strcmp(val, "evenodd") == 0) {
223 origWind[curOrig]= fill_oddEven;
224 } else {
225 origWind[curOrig]= fill_nonZero;
226 }
228 originaux[curOrig] = Path_for_item((SPItem *) l->data, true, true);
229 if (originaux[curOrig] == NULL || originaux[curOrig]->descr_cmd.size() <= 1)
230 {
231 for (int i = curOrig; i >= 0; i--) delete originaux[i];
232 g_slist_free(il);
233 return;
234 }
235 curOrig++;
236 }
237 }
238 // reverse if needed
239 // note that the selection list keeps its order
240 if ( reverseOrderForOp ) {
241 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
242 FillRule swai=origWind[0]; origWind[0]=origWind[1]; origWind[1]=swai;
243 }
245 // and work
246 // some temporary instances, first
247 Shape *theShapeA = new Shape;
248 Shape *theShapeB = new Shape;
249 Shape *theShape = new Shape;
250 Path *res = new Path;
251 res->SetBackData(false);
252 Path::cut_position *toCut=NULL;
253 int nbToCut=0;
255 if ( bop == bool_op_inters || bop == bool_op_union || bop == bool_op_diff || bop == bool_op_symdiff ) {
256 // true boolean op
257 // get the polygons of each path, with the winding rule specified, and apply the operation iteratively
258 originaux[0]->ConvertWithBackData(0.1);
260 originaux[0]->Fill(theShape, 0);
262 theShapeA->ConvertToShape(theShape, origWind[0]);
264 curOrig = 1;
265 for (GSList *l = il->next; l != NULL; l = l->next) {
266 originaux[curOrig]->ConvertWithBackData(0.1);
268 originaux[curOrig]->Fill(theShape, curOrig);
270 theShapeB->ConvertToShape(theShape, origWind[curOrig]);
272 // les elements arrivent en ordre inverse dans la liste
273 theShape->Booleen(theShapeB, theShapeA, bop);
275 {
276 Shape *swap = theShape;
277 theShape = theShapeA;
278 theShapeA = swap;
279 }
280 curOrig++;
281 }
283 {
284 Shape *swap = theShape;
285 theShape = theShapeA;
286 theShapeA = swap;
287 }
289 } else if ( bop == bool_op_cut ) {
290 // cuts= sort of a bastard boolean operation, thus not the axact same modus operandi
291 // technically, the cut path is not necessarily a polygon (thus has no winding rule)
292 // it is just uncrossed, and cleaned from duplicate edges and points
293 // then it's fed to Booleen() which will uncross it against the other path
294 // then comes the trick: each edge of the cut path is duplicated (one in each direction),
295 // thus making a polygon. the weight of the edges of the cut are all 0, but
296 // the Booleen need to invert the ones inside the source polygon (for the subsequent
297 // ConvertToForme)
299 // the cut path needs to have the highest pathID in the back data
300 // that's how the Booleen() function knows it's an edge of the cut
302 // FIXME: this gives poor results, the final paths are full of extraneous nodes. Decreasing
303 // ConvertWithBackData parameter below simply increases the number of nodes, so for now I
304 // left it at 1.0. Investigate replacing this by a combination of difference and
305 // intersection of the same two paths. -- bb
306 {
307 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
308 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
309 }
310 originaux[0]->ConvertWithBackData(1.0);
312 originaux[0]->Fill(theShape, 0);
314 theShapeA->ConvertToShape(theShape, origWind[0]);
316 originaux[1]->ConvertWithBackData(1.0);
318 originaux[1]->Fill(theShape, 1,false,false,false); //do not closeIfNeeded
320 theShapeB->ConvertToShape(theShape, fill_justDont); // fill_justDont doesn't computes winding numbers
322 // les elements arrivent en ordre inverse dans la liste
323 theShape->Booleen(theShapeB, theShapeA, bool_op_cut, 1);
325 } else if ( bop == bool_op_slice ) {
326 // slice is not really a boolean operation
327 // you just put the 2 shapes in a single polygon, uncross it
328 // the points where the degree is > 2 are intersections
329 // just check it's an intersection on the path you want to cut, and keep it
330 // the intersections you have found are then fed to ConvertPositionsToMoveTo() which will
331 // make new subpath at each one of these positions
332 // inversion pour l'op\8eration
333 {
334 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
335 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
336 }
337 originaux[0]->ConvertWithBackData(1.0);
339 originaux[0]->Fill(theShapeA, 0,false,false,false); // don't closeIfNeeded
341 originaux[1]->ConvertWithBackData(1.0);
343 originaux[1]->Fill(theShapeA, 1,true,false,false);// don't closeIfNeeded and just dump in the shape, don't reset it
345 theShape->ConvertToShape(theShapeA, fill_justDont);
347 if ( theShape->hasBackData() ) {
348 // should always be the case, but ya never know
349 {
350 for (int i = 0; i < theShape->numberOfPoints(); i++) {
351 if ( theShape->getPoint(i).totalDegree() > 2 ) {
352 // possibly an intersection
353 // we need to check that at least one edge from the source path is incident to it
354 // before we declare it's an intersection
355 int cb = theShape->getPoint(i).incidentEdge[FIRST];
356 int nbOrig=0;
357 int nbOther=0;
358 int piece=-1;
359 float t=0.0;
360 while ( cb >= 0 && cb < theShape->numberOfEdges() ) {
361 if ( theShape->ebData[cb].pathID == 0 ) {
362 // the source has an edge incident to the point, get its position on the path
363 piece=theShape->ebData[cb].pieceID;
364 if ( theShape->getEdge(cb).st == i ) {
365 t=theShape->ebData[cb].tSt;
366 } else {
367 t=theShape->ebData[cb].tEn;
368 }
369 nbOrig++;
370 }
371 if ( theShape->ebData[cb].pathID == 1 ) nbOther++; // the cut is incident to this point
372 cb=theShape->NextAt(i, cb);
373 }
374 if ( nbOrig > 0 && nbOther > 0 ) {
375 // point incident to both path and cut: an intersection
376 // note that you only keep one position on the source; you could have degenerate
377 // cases where the source crosses itself at this point, and you wouyld miss an intersection
378 toCut=(Path::cut_position*)realloc(toCut, (nbToCut+1)*sizeof(Path::cut_position));
379 toCut[nbToCut].piece=piece;
380 toCut[nbToCut].t=t;
381 nbToCut++;
382 }
383 }
384 }
385 }
386 {
387 // i think it's useless now
388 int i = theShape->numberOfEdges() - 1;
389 for (;i>=0;i--) {
390 if ( theShape->ebData[i].pathID == 1 ) {
391 theShape->SubEdge(i);
392 }
393 }
394 }
396 }
397 }
399 int* nesting=NULL;
400 int* conts=NULL;
401 int nbNest=0;
402 // pour compenser le swap juste avant
403 if ( bop == bool_op_slice ) {
404 // theShape->ConvertToForme(res, nbOriginaux, originaux, true);
405 // res->ConvertForcedToMoveTo();
406 res->Copy(originaux[0]);
407 res->ConvertPositionsToMoveTo(nbToCut, toCut); // cut where you found intersections
408 free(toCut);
409 } else if ( bop == bool_op_cut ) {
410 // il faut appeler pour desallouer PointData (pas vital, mais bon)
411 // the Booleen() function did not deallocated the point_data array in theShape, because this
412 // function needs it.
413 // this function uses the point_data to get the winding number of each path (ie: is a hole or not)
414 // for later reconstruction in objects, you also need to extract which path is parent of holes (nesting info)
415 theShape->ConvertToFormeNested(res, nbOriginaux, &originaux[0], 1, nbNest, nesting, conts);
416 } else {
417 theShape->ConvertToForme(res, nbOriginaux, &originaux[0]);
418 }
420 delete theShape;
421 delete theShapeA;
422 delete theShapeB;
423 for (int i = 0; i < nbOriginaux; i++) delete originaux[i];
425 if (res->descr_cmd.size() <= 1)
426 {
427 // only one command, presumably a moveto: it isn't a path
428 for (GSList *l = il; l != NULL; l = l->next)
429 {
430 SP_OBJECT(l->data)->deleteObject();
431 }
432 sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
433 description);
434 selection->clear();
436 delete res;
437 g_slist_free(il);
438 return;
439 }
441 // get the source path object
442 SPObject *source;
443 if ( bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
444 if (reverseOrderForOp) {
445 source = SP_OBJECT(il->data);
446 } else {
447 source = SP_OBJECT(il->next->data);
448 }
449 } else {
450 // find out the bottom object
451 GSList *sorted = g_slist_copy((GSList *) selection->reprList());
453 sorted = g_slist_sort(sorted, (GCompareFunc) sp_repr_compare_position);
455 source = sp_desktop_document(desktop)->
456 getObjectByRepr((Inkscape::XML::Node *)sorted->data);
458 g_slist_free(sorted);
459 }
461 // adjust style properties that depend on a possible transform in the source object in order
462 // to get a correct style attribute for the new path
463 SPItem* item_source = SP_ITEM(source);
464 NR::Matrix i2root(sp_item_i2root_affine(item_source));
465 sp_item_adjust_stroke(item_source, NR::expansion(i2root));
466 sp_item_adjust_pattern(item_source, i2root);
467 sp_item_adjust_gradient(item_source, i2root);
468 sp_item_adjust_livepatheffect(item_source, i2root);
470 Inkscape::XML::Node *repr_source = SP_OBJECT_REPR(source);
472 // remember important aspects of the source path, to be restored
473 gint pos = repr_source->position();
474 Inkscape::XML::Node *parent = sp_repr_parent(repr_source);
475 gchar const *id = repr_source->attribute("id");
476 gchar const *style = repr_source->attribute("style");
477 gchar const *mask = repr_source->attribute("mask");
478 gchar const *clip_path = repr_source->attribute("clip-path");
480 // remove source paths
481 selection->clear();
482 for (GSList *l = il; l != NULL; l = l->next) {
483 // if this is the bottommost object,
484 if (!strcmp(SP_OBJECT_REPR(l->data)->attribute("id"), id)) {
485 // delete it so that its clones don't get alerted; this object will be restored shortly, with the same id
486 SP_OBJECT(l->data)->deleteObject(false);
487 } else {
488 // delete the object for real, so that its clones can take appropriate action
489 SP_OBJECT(l->data)->deleteObject();
490 }
491 }
492 g_slist_free(il);
494 // premultiply by the inverse of parent's repr
495 SPItem *parent_item = SP_ITEM(sp_desktop_document(desktop)->getObjectByRepr(parent));
496 NR::Matrix local (sp_item_i2doc_affine(parent_item));
497 gchar *transform = sp_svg_transform_write(local.inverse());
499 // now that we have the result, add it on the canvas
500 if ( bop == bool_op_cut || bop == bool_op_slice ) {
501 int nbRP=0;
502 Path** resPath;
503 if ( bop == bool_op_slice ) {
504 // there are moveto's at each intersection, but it's still one unique path
505 // so break it down and add each subpath independently
506 // we could call break_apart to do this, but while we have the description...
507 resPath=res->SubPaths(nbRP, false);
508 } else {
509 // cut operation is a bit wicked: you need to keep holes
510 // that's why you needed the nesting
511 // ConvertToFormeNested() dumped all the subpath in a single Path "res", so we need
512 // to get the path for each part of the polygon. that's why you need the nesting info:
513 // to know in wich subpath to add a subpath
514 resPath=res->SubPathsWithNesting(nbRP, true, nbNest, nesting, conts);
516 // cleaning
517 if ( conts ) free(conts);
518 if ( nesting ) free(nesting);
519 }
521 // add all the pieces resulting from cut or slice
522 for (int i=0;i<nbRP;i++) {
523 gchar *d = resPath[i]->svg_dump_path();
525 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
526 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
527 repr->setAttribute("style", style);
528 if (mask)
529 repr->setAttribute("mask", mask);
530 if (clip_path)
531 repr->setAttribute("clip-path", clip_path);
533 repr->setAttribute("d", d);
534 g_free(d);
536 // for slice, remove fill
537 if (bop == bool_op_slice) {
538 SPCSSAttr *css;
540 css = sp_repr_css_attr_new();
541 sp_repr_css_set_property(css, "fill", "none");
543 sp_repr_css_change(repr, css, "style");
545 sp_repr_css_attr_unref(css);
546 }
548 // we assign the same id on all pieces, but it on adding to document, it will be changed on all except one
549 // this means it's basically random which of the pieces inherits the original's id and clones
550 // a better algorithm might figure out e.g. the biggest piece
551 repr->setAttribute("id", id);
553 repr->setAttribute("transform", transform);
555 // add the new repr to the parent
556 parent->appendChild(repr);
558 // move to the saved position
559 repr->setPosition(pos > 0 ? pos : 0);
561 selection->add(repr);
562 Inkscape::GC::release(repr);
564 delete resPath[i];
565 }
566 if ( resPath ) free(resPath);
568 } else {
569 gchar *d = res->svg_dump_path();
571 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
572 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
573 repr->setAttribute("style", style);
575 if ( mask )
576 repr->setAttribute("mask", mask);
578 if ( clip_path )
579 repr->setAttribute("clip-path", clip_path);
581 repr->setAttribute("d", d);
582 g_free(d);
584 repr->setAttribute("transform", transform);
586 repr->setAttribute("id", id);
587 parent->appendChild(repr);
588 repr->setPosition(pos > 0 ? pos : 0);
590 selection->add(repr);
591 Inkscape::GC::release(repr);
592 }
594 g_free(transform);
596 if (verb != SP_VERB_NONE) {
597 sp_document_done(sp_desktop_document(desktop), verb, description);
598 }
600 delete res;
601 }
603 static
604 void sp_selected_path_outline_add_marker( SPObject *marker_object, Geom::Matrix marker_transform, NR::scale stroke_scale, NR::Matrix transform,
605 Inkscape::XML::Node *g_repr, Inkscape::XML::Document *xml_doc, SPDocument * doc )
606 {
607 SPMarker* marker = SP_MARKER (marker_object);
608 SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (marker_object));
610 NR::Matrix tr(marker_transform);
612 if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
613 tr = stroke_scale * tr;
614 }
616 // total marker transform
617 tr = marker_item->transform * marker->c2p * tr * transform;
619 if (SP_OBJECT_REPR(marker_item)) {
620 Inkscape::XML::Node *m_repr = SP_OBJECT_REPR(marker_item)->duplicate(xml_doc);
621 g_repr->appendChild(m_repr);
622 SPItem *marker_item = (SPItem *) doc->getObjectByRepr(m_repr);
623 sp_item_write_transform(marker_item, m_repr, tr);
624 }
625 }
627 void
628 sp_selected_path_outline()
629 {
630 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
632 Inkscape::Selection *selection = sp_desktop_selection(desktop);
634 if (selection->isEmpty()) {
635 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>stroked path(s)</b> to convert stroke to path."));
636 return;
637 }
639 bool did = false;
641 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
642 items != NULL;
643 items = items->next) {
645 SPItem *item = (SPItem *) items->data;
647 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
648 continue;
650 SPCurve *curve = NULL;
651 if (SP_IS_SHAPE(item)) {
652 curve = sp_shape_get_curve(SP_SHAPE(item));
653 if (curve == NULL)
654 continue;
655 }
656 if (SP_IS_TEXT(item)) {
657 curve = SP_TEXT(item)->getNormalizedBpath();
658 if (curve == NULL)
659 continue;
660 }
662 // pas de stroke pas de chocolat
663 if (!SP_OBJECT_STYLE(item) || SP_OBJECT_STYLE(item)->stroke.noneSet) {
664 curve->unref();
665 continue;
666 }
668 // remember old stroke style, to be set on fill
669 SPStyle *i_style = SP_OBJECT_STYLE(item);
670 SPCSSAttr *ncss;
671 {
672 ncss = sp_css_attr_from_style(i_style, SP_STYLE_FLAG_ALWAYS);
673 gchar const *s_val = sp_repr_css_property(ncss, "stroke", NULL);
674 gchar const *s_opac = sp_repr_css_property(ncss, "stroke-opacity", NULL);
676 sp_repr_css_set_property(ncss, "stroke", "none");
677 sp_repr_css_set_property(ncss, "stroke-opacity", "1.0");
678 sp_repr_css_set_property(ncss, "fill", s_val);
679 if ( s_opac ) {
680 sp_repr_css_set_property(ncss, "fill-opacity", s_opac);
681 } else {
682 sp_repr_css_set_property(ncss, "fill-opacity", "1.0");
683 }
684 sp_repr_css_unset_property(ncss, "marker-start");
685 sp_repr_css_unset_property(ncss, "marker-mid");
686 sp_repr_css_unset_property(ncss, "marker-end");
687 }
689 NR::Matrix const transform(item->transform);
690 float const scale = NR::expansion(transform);
691 gchar const *mask = SP_OBJECT_REPR(item)->attribute("mask");
692 gchar const *clip_path = SP_OBJECT_REPR(item)->attribute("clip-path");
694 float o_width, o_miter;
695 JoinType o_join;
696 ButtType o_butt;
698 {
699 int jointype, captype;
701 jointype = i_style->stroke_linejoin.computed;
702 captype = i_style->stroke_linecap.computed;
703 o_width = i_style->stroke_width.computed;
705 switch (jointype) {
706 case SP_STROKE_LINEJOIN_MITER:
707 o_join = join_pointy;
708 break;
709 case SP_STROKE_LINEJOIN_ROUND:
710 o_join = join_round;
711 break;
712 default:
713 o_join = join_straight;
714 break;
715 }
717 switch (captype) {
718 case SP_STROKE_LINECAP_SQUARE:
719 o_butt = butt_square;
720 break;
721 case SP_STROKE_LINECAP_ROUND:
722 o_butt = butt_round;
723 break;
724 default:
725 o_butt = butt_straight;
726 break;
727 }
729 if (o_width < 0.1)
730 o_width = 0.1;
731 o_miter = i_style->stroke_miterlimit.value * o_width;
732 }
734 SPCurve *curvetemp = curve_for_item(item);
735 if (curvetemp == NULL) {
736 curve->unref();
737 continue;
738 }
739 // Livarots outline of arcs is broken. So convert the path to linear and cubics only, for which the outline is created correctly.
740 Geom::PathVector pathv = pathv_to_linear_and_cubic_beziers( curvetemp->get_pathvector() );
741 curvetemp->unref();
743 Path *orig = new Path;
744 orig->LoadPathVector(pathv);
746 Path *res = new Path;
747 res->SetBackData(false);
749 if (i_style->stroke_dash.n_dash) {
750 // For dashed strokes, use Stroke method, because Outline can't do dashes
751 // However Stroke adds lots of extra nodes _or_ makes the path crooked, so consider this a temporary workaround
753 orig->ConvertWithBackData(0.1);
755 orig->DashPolylineFromStyle(i_style, scale, 0);
757 Shape* theShape = new Shape;
758 orig->Stroke(theShape, false, 0.5*o_width, o_join, o_butt,
759 0.5 * o_miter);
760 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
762 Shape *theRes = new Shape;
764 theRes->ConvertToShape(theShape, fill_positive);
766 Path *originaux[1];
767 originaux[0] = res;
768 theRes->ConvertToForme(orig, 1, originaux);
770 res->Coalesce(5.0);
772 delete theShape;
773 delete theRes;
775 } else {
777 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
779 orig->Coalesce(0.5 * o_width);
781 Shape *theShape = new Shape;
782 Shape *theRes = new Shape;
784 res->ConvertWithBackData(1.0);
785 res->Fill(theShape, 0);
786 theRes->ConvertToShape(theShape, fill_positive);
788 Path *originaux[1];
789 originaux[0] = res;
790 theRes->ConvertToForme(orig, 1, originaux);
792 delete theShape;
793 delete theRes;
794 }
796 if (orig->descr_cmd.size() <= 1) {
797 // ca a merd\8e, ou bien le resultat est vide
798 delete res;
799 delete orig;
800 continue;
801 }
803 did = true;
805 // remember the position of the item
806 gint pos = SP_OBJECT_REPR(item)->position();
807 // remember parent
808 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
809 // remember id
810 char const *id = SP_OBJECT_REPR(item)->attribute("id");
812 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
814 SPDocument * doc = sp_desktop_document(desktop);
815 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
816 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
818 // restore old style, but set old stroke style on fill
819 sp_repr_css_change(repr, ncss, "style");
821 sp_repr_css_attr_unref(ncss);
823 gchar *str = orig->svg_dump_path();
824 repr->setAttribute("d", str);
825 g_free(str);
827 if (mask)
828 repr->setAttribute("mask", mask);
829 if (clip_path)
830 repr->setAttribute("clip-path", clip_path);
832 if (SP_IS_SHAPE(item) && sp_shape_has_markers (SP_SHAPE(item))) {
834 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
835 Inkscape::XML::Node *g_repr = xml_doc->createElement("svg:g");
837 // add the group to the parent
838 parent->appendChild(g_repr);
839 // move to the saved position
840 g_repr->setPosition(pos > 0 ? pos : 0);
842 g_repr->appendChild(repr);
843 repr->setAttribute("id", id);
844 SPItem *newitem = (SPItem *) doc->getObjectByRepr(repr);
845 sp_item_write_transform(newitem, repr, transform);
847 SPShape *shape = SP_SHAPE(item);
849 Geom::PathVector const & pathv = curve->get_pathvector();
850 for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
851 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_START] ) {
852 Geom::Matrix const m (sp_shape_marker_get_transform_at_start(path_it->front()));
853 sp_selected_path_outline_add_marker( marker_obj, m,
854 NR::scale(i_style->stroke_width.computed), transform,
855 g_repr, xml_doc, doc );
856 }
858 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_MID] ) {
859 Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
860 Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
861 while (curve_it2 != path_it->end_default())
862 {
863 /* Put marker between curve_it1 and curve_it2.
864 * Loop to end_default (so including closing segment), because when a path is closed,
865 * there should be a midpoint marker between last segment and closing straight line segment
866 */
867 Geom::Matrix const m (sp_shape_marker_get_transform(*curve_it1, *curve_it2));
868 sp_selected_path_outline_add_marker( marker_obj, m,
869 NR::scale(i_style->stroke_width.computed), transform,
870 g_repr, xml_doc, doc );
872 ++curve_it1;
873 ++curve_it2;
874 }
875 }
877 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_END] ) {
878 Geom::Matrix const m (sp_shape_marker_get_transform_at_end(path_it->back_default()));
879 sp_selected_path_outline_add_marker( marker_obj, m,
880 NR::scale(i_style->stroke_width.computed), transform,
881 g_repr, xml_doc, doc );
882 }
883 }
885 selection->add(g_repr);
887 Inkscape::GC::release(g_repr);
890 } else {
892 // add the new repr to the parent
893 parent->appendChild(repr);
895 // move to the saved position
896 repr->setPosition(pos > 0 ? pos : 0);
898 repr->setAttribute("id", id);
900 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
901 sp_item_write_transform(newitem, repr, transform);
903 selection->add(repr);
905 }
907 Inkscape::GC::release(repr);
909 curve->unref();
910 selection->remove(item);
911 SP_OBJECT(item)->deleteObject(false);
913 }
915 delete res;
916 delete orig;
917 }
919 if (did) {
920 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_OUTLINE,
921 _("Convert stroke to path"));
922 } else {
923 // TRANSLATORS: "to outline" means "to convert stroke to path"
924 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No stroked paths</b> in the selection."));
925 return;
926 }
927 }
930 void
931 sp_selected_path_offset()
932 {
933 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
935 sp_selected_path_do_offset(true, prefOffset);
936 }
937 void
938 sp_selected_path_inset()
939 {
940 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
942 sp_selected_path_do_offset(false, prefOffset);
943 }
945 void
946 sp_selected_path_offset_screen(double pixels)
947 {
948 sp_selected_path_do_offset(true, pixels / SP_ACTIVE_DESKTOP->current_zoom());
949 }
951 void
952 sp_selected_path_inset_screen(double pixels)
953 {
954 sp_selected_path_do_offset(false, pixels / SP_ACTIVE_DESKTOP->current_zoom());
955 }
958 void sp_selected_path_create_offset_object_zero()
959 {
960 sp_selected_path_create_offset_object(0, false);
961 }
963 void sp_selected_path_create_offset()
964 {
965 sp_selected_path_create_offset_object(1, false);
966 }
967 void sp_selected_path_create_inset()
968 {
969 sp_selected_path_create_offset_object(-1, false);
970 }
972 void sp_selected_path_create_updating_offset_object_zero()
973 {
974 sp_selected_path_create_offset_object(0, true);
975 }
977 void sp_selected_path_create_updating_offset()
978 {
979 sp_selected_path_create_offset_object(1, true);
980 }
981 void sp_selected_path_create_updating_inset()
982 {
983 sp_selected_path_create_offset_object(-1, true);
984 }
986 void
987 sp_selected_path_create_offset_object(int expand, bool updating)
988 {
989 Inkscape::Selection *selection;
990 Inkscape::XML::Node *repr;
991 SPItem *item;
992 SPCurve *curve;
993 gchar *style, *str;
994 SPDesktop *desktop;
995 float o_width, o_miter;
996 JoinType o_join;
997 ButtType o_butt;
999 curve = NULL;
1001 desktop = SP_ACTIVE_DESKTOP;
1003 selection = sp_desktop_selection(desktop);
1005 item = selection->singleItem();
1007 if (item == NULL || ( !SP_IS_SHAPE(item) && !SP_IS_TEXT(item) ) ) {
1008 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Selected object is <b>not a path</b>, cannot inset/outset."));
1009 return;
1010 }
1011 if (SP_IS_SHAPE(item))
1012 {
1013 curve = sp_shape_get_curve(SP_SHAPE(item));
1014 if (curve == NULL)
1015 return;
1016 }
1017 if (SP_IS_TEXT(item))
1018 {
1019 curve = SP_TEXT(item)->getNormalizedBpath();
1020 if (curve == NULL)
1021 return;
1022 }
1024 NR::Matrix const transform(item->transform);
1026 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1028 style = g_strdup(SP_OBJECT(item)->repr->attribute("style"));
1030 // remember the position of the item
1031 gint pos = SP_OBJECT_REPR(item)->position();
1032 // remember parent
1033 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1035 {
1036 SPStyle *i_style = SP_OBJECT(item)->style;
1037 int jointype, captype;
1039 jointype = i_style->stroke_linejoin.value;
1040 captype = i_style->stroke_linecap.value;
1041 o_width = i_style->stroke_width.computed;
1042 if (jointype == SP_STROKE_LINEJOIN_MITER)
1043 {
1044 o_join = join_pointy;
1045 }
1046 else if (jointype == SP_STROKE_LINEJOIN_ROUND)
1047 {
1048 o_join = join_round;
1049 }
1050 else
1051 {
1052 o_join = join_straight;
1053 }
1054 if (captype == SP_STROKE_LINECAP_SQUARE)
1055 {
1056 o_butt = butt_square;
1057 }
1058 else if (captype == SP_STROKE_LINECAP_ROUND)
1059 {
1060 o_butt = butt_round;
1061 }
1062 else
1063 {
1064 o_butt = butt_straight;
1065 }
1067 {
1068 double prefOffset = 1.0;
1069 prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", prefOffset);
1070 o_width = prefOffset;
1071 }
1073 if (o_width < 0.01)
1074 o_width = 0.01;
1075 o_miter = i_style->stroke_miterlimit.value * o_width;
1076 }
1078 Path *orig = Path_for_item(item, true, false);
1079 if (orig == NULL)
1080 {
1081 g_free(style);
1082 curve->unref();
1083 return;
1084 }
1086 Path *res = new Path;
1087 res->SetBackData(false);
1089 {
1090 Shape *theShape = new Shape;
1091 Shape *theRes = new Shape;
1093 orig->ConvertWithBackData(1.0);
1094 orig->Fill(theShape, 0);
1096 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1097 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1098 if (val && strcmp(val, "nonzero") == 0)
1099 {
1100 theRes->ConvertToShape(theShape, fill_nonZero);
1101 }
1102 else if (val && strcmp(val, "evenodd") == 0)
1103 {
1104 theRes->ConvertToShape(theShape, fill_oddEven);
1105 }
1106 else
1107 {
1108 theRes->ConvertToShape(theShape, fill_nonZero);
1109 }
1111 Path *originaux[1];
1112 originaux[0] = orig;
1113 theRes->ConvertToForme(res, 1, originaux);
1115 delete theShape;
1116 delete theRes;
1117 }
1119 curve->unref();
1121 if (res->descr_cmd.size() <= 1)
1122 {
1123 // pas vraiment de points sur le resultat
1124 // donc il ne reste rien
1125 sp_document_done(sp_desktop_document(desktop),
1126 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1127 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1128 (updating ? _("Create linked offset")
1129 : _("Create dynamic offset")));
1130 selection->clear();
1132 delete res;
1133 delete orig;
1134 g_free(style);
1135 return;
1136 }
1138 {
1139 gchar tstr[80];
1141 tstr[79] = '\0';
1143 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1144 repr = xml_doc->createElement("svg:path");
1145 repr->setAttribute("sodipodi:type", "inkscape:offset");
1146 sp_repr_set_svg_double(repr, "inkscape:radius", ( expand > 0
1147 ? o_width
1148 : expand < 0
1149 ? -o_width
1150 : 0 ));
1152 str = res->svg_dump_path();
1153 repr->setAttribute("inkscape:original", str);
1154 g_free(str);
1156 if ( updating ) {
1157 char const *id = SP_OBJECT(item)->repr->attribute("id");
1158 char const *uri = g_strdup_printf("#%s", id);
1159 repr->setAttribute("xlink:href", uri);
1160 g_free((void *) uri);
1161 } else {
1162 repr->setAttribute("inkscape:href", NULL);
1163 }
1165 repr->setAttribute("style", style);
1167 // add the new repr to the parent
1168 parent->appendChild(repr);
1170 // move to the saved position
1171 repr->setPosition(pos > 0 ? pos : 0);
1173 SPItem *nitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1175 if ( updating ) {
1176 // on conserve l'original
1177 // we reapply the transform to the original (offset will feel it)
1178 sp_item_write_transform(item, SP_OBJECT_REPR(item), transform);
1179 } else {
1180 // delete original, apply the transform to the offset
1181 SP_OBJECT(item)->deleteObject(false);
1182 sp_item_write_transform(nitem, repr, transform);
1183 }
1185 // The object just created from a temporary repr is only a seed.
1186 // We need to invoke its write which will update its real repr (in particular adding d=)
1187 SP_OBJECT(nitem)->updateRepr();
1189 Inkscape::GC::release(repr);
1191 selection->set(nitem);
1192 }
1194 sp_document_done(sp_desktop_document(desktop),
1195 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1196 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1197 (updating ? _("Create linked offset")
1198 : _("Create dynamic offset")));
1200 delete res;
1201 delete orig;
1203 g_free(style);
1204 }
1217 void
1218 sp_selected_path_do_offset(bool expand, double prefOffset)
1219 {
1220 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1222 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1224 if (selection->isEmpty()) {
1225 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to inset/outset."));
1226 return;
1227 }
1229 bool did = false;
1231 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1232 items != NULL;
1233 items = items->next) {
1235 SPItem *item = (SPItem *) items->data;
1237 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
1238 continue;
1240 SPCurve *curve = NULL;
1241 if (SP_IS_SHAPE(item)) {
1242 curve = sp_shape_get_curve(SP_SHAPE(item));
1243 if (curve == NULL)
1244 continue;
1245 }
1246 if (SP_IS_TEXT(item)) {
1247 curve = SP_TEXT(item)->getNormalizedBpath();
1248 if (curve == NULL)
1249 continue;
1250 }
1252 NR::Matrix const transform(item->transform);
1254 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1256 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1258 float o_width, o_miter;
1259 JoinType o_join;
1260 ButtType o_butt;
1262 {
1263 SPStyle *i_style = SP_OBJECT(item)->style;
1264 int jointype, captype;
1266 jointype = i_style->stroke_linejoin.value;
1267 captype = i_style->stroke_linecap.value;
1268 o_width = i_style->stroke_width.computed;
1270 switch (jointype) {
1271 case SP_STROKE_LINEJOIN_MITER:
1272 o_join = join_pointy;
1273 break;
1274 case SP_STROKE_LINEJOIN_ROUND:
1275 o_join = join_round;
1276 break;
1277 default:
1278 o_join = join_straight;
1279 break;
1280 }
1282 switch (captype) {
1283 case SP_STROKE_LINECAP_SQUARE:
1284 o_butt = butt_square;
1285 break;
1286 case SP_STROKE_LINECAP_ROUND:
1287 o_butt = butt_round;
1288 break;
1289 default:
1290 o_butt = butt_straight;
1291 break;
1292 }
1294 o_width = prefOffset;
1296 if (o_width < 0.1)
1297 o_width = 0.1;
1298 o_miter = i_style->stroke_miterlimit.value * o_width;
1299 }
1301 Path *orig = Path_for_item(item, false);
1302 if (orig == NULL) {
1303 g_free(style);
1304 curve->unref();
1305 continue;
1306 }
1308 Path *res = new Path;
1309 res->SetBackData(false);
1311 {
1312 Shape *theShape = new Shape;
1313 Shape *theRes = new Shape;
1315 orig->ConvertWithBackData(0.03);
1316 orig->Fill(theShape, 0);
1318 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1319 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1320 if (val && strcmp(val, "nonzero") == 0)
1321 {
1322 theRes->ConvertToShape(theShape, fill_nonZero);
1323 }
1324 else if (val && strcmp(val, "evenodd") == 0)
1325 {
1326 theRes->ConvertToShape(theShape, fill_oddEven);
1327 }
1328 else
1329 {
1330 theRes->ConvertToShape(theShape, fill_nonZero);
1331 }
1333 // et maintenant: offset
1334 // methode inexacte
1335 /* Path *originaux[1];
1336 originaux[0] = orig;
1337 theRes->ConvertToForme(res, 1, originaux);
1339 if (expand) {
1340 res->OutsideOutline(orig, 0.5 * o_width, o_join, o_butt, o_miter);
1341 } else {
1342 res->OutsideOutline(orig, -0.5 * o_width, o_join, o_butt, o_miter);
1343 }
1345 orig->ConvertWithBackData(1.0);
1346 orig->Fill(theShape, 0);
1347 theRes->ConvertToShape(theShape, fill_positive);
1348 originaux[0] = orig;
1349 theRes->ConvertToForme(res, 1, originaux);
1351 if (o_width >= 0.5) {
1352 // res->Coalesce(1.0);
1353 res->ConvertEvenLines(1.0);
1354 res->Simplify(1.0);
1355 } else {
1356 // res->Coalesce(o_width);
1357 res->ConvertEvenLines(1.0*o_width);
1358 res->Simplify(1.0 * o_width);
1359 } */
1360 // methode par makeoffset
1362 if (expand)
1363 {
1364 theShape->MakeOffset(theRes, o_width, o_join, o_miter);
1365 }
1366 else
1367 {
1368 theShape->MakeOffset(theRes, -o_width, o_join, o_miter);
1369 }
1370 theRes->ConvertToShape(theShape, fill_positive);
1372 res->Reset();
1373 theRes->ConvertToForme(res);
1375 if (o_width >= 1.0)
1376 {
1377 res->ConvertEvenLines(1.0);
1378 res->Simplify(1.0);
1379 }
1380 else
1381 {
1382 res->ConvertEvenLines(1.0*o_width);
1383 res->Simplify(1.0 * o_width);
1384 }
1386 delete theShape;
1387 delete theRes;
1388 }
1390 did = true;
1392 curve->unref();
1393 // remember the position of the item
1394 gint pos = SP_OBJECT_REPR(item)->position();
1395 // remember parent
1396 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1397 // remember id
1398 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1400 selection->remove(item);
1401 SP_OBJECT(item)->deleteObject(false);
1403 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
1405 gchar tstr[80];
1407 tstr[79] = '\0';
1409 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1410 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1412 repr->setAttribute("style", style);
1414 gchar *str = res->svg_dump_path();
1415 repr->setAttribute("d", str);
1416 g_free(str);
1418 // add the new repr to the parent
1419 parent->appendChild(repr);
1421 // move to the saved position
1422 repr->setPosition(pos > 0 ? pos : 0);
1424 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1426 // reapply the transform
1427 sp_item_write_transform(newitem, repr, transform);
1429 repr->setAttribute("id", id);
1431 selection->add(repr);
1433 Inkscape::GC::release(repr);
1434 }
1436 delete orig;
1437 delete res;
1438 }
1440 if (did) {
1441 sp_document_done(sp_desktop_document(desktop),
1442 (expand ? SP_VERB_SELECTION_OFFSET : SP_VERB_SELECTION_INSET),
1443 (expand ? _("Outset path") : _("Inset path")));
1444 } else {
1445 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to inset/outset in the selection."));
1446 return;
1447 }
1448 }
1451 static bool
1452 sp_selected_path_simplify_items(SPDesktop *desktop,
1453 Inkscape::Selection *selection, GSList *items,
1454 float threshold, bool justCoalesce,
1455 float angleLimit, bool breakableAngles,
1456 bool modifySelection);
1459 //return true if we changed something, else false
1460 bool
1461 sp_selected_path_simplify_item(SPDesktop *desktop,
1462 Inkscape::Selection *selection, SPItem *item,
1463 float threshold, bool justCoalesce,
1464 float angleLimit, bool breakableAngles,
1465 gdouble size, bool modifySelection)
1466 {
1467 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1468 return false;
1470 //If this is a group, do the children instead
1471 if (SP_IS_GROUP(item)) {
1472 GSList *items = sp_item_group_item_list(SP_GROUP(item));
1474 return sp_selected_path_simplify_items(desktop, selection, items,
1475 threshold, justCoalesce,
1476 angleLimit, breakableAngles,
1477 false);
1478 }
1481 SPCurve *curve = NULL;
1483 if (SP_IS_SHAPE(item)) {
1484 curve = sp_shape_get_curve(SP_SHAPE(item));
1485 if (!curve)
1486 return false;
1487 }
1489 if (SP_IS_TEXT(item)) {
1490 curve = SP_TEXT(item)->getNormalizedBpath();
1491 if (!curve)
1492 return false;
1493 }
1495 // save the transform, to re-apply it after simplification
1496 NR::Matrix const transform(item->transform);
1498 /*
1499 reset the transform, effectively transforming the item by transform.inverse();
1500 this is necessary so that the item is transformed twice back and forth,
1501 allowing all compensations to cancel out regardless of the preferences
1502 */
1503 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1505 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1506 gchar *mask = g_strdup(SP_OBJECT_REPR(item)->attribute("mask"));
1507 gchar *clip_path = g_strdup(SP_OBJECT_REPR(item)->attribute("clip-path"));
1509 Path *orig = Path_for_item(item, false);
1510 if (orig == NULL) {
1511 g_free(style);
1512 curve->unref();
1513 return false;
1514 }
1516 curve->unref();
1517 // remember the position of the item
1518 gint pos = SP_OBJECT_REPR(item)->position();
1519 // remember parent
1520 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1521 // remember id
1522 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1523 // remember path effect
1524 char const *patheffect = SP_OBJECT_REPR(item)->attribute("inkscape:path-effect");
1526 //If a group was selected, to not change the selection list
1527 if (modifySelection)
1528 selection->remove(item);
1530 SP_OBJECT(item)->deleteObject(false);
1532 if ( justCoalesce ) {
1533 orig->Coalesce(threshold * size);
1534 } else {
1535 orig->ConvertEvenLines(threshold * size);
1536 orig->Simplify(threshold * size);
1537 }
1539 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1540 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1542 // restore style, mask and clip-path
1543 repr->setAttribute("style", style);
1544 g_free(style);
1546 if ( mask ) {
1547 repr->setAttribute("mask", mask);
1548 g_free(mask);
1549 }
1551 if ( clip_path ) {
1552 repr->setAttribute("clip-path", clip_path);
1553 g_free(clip_path);
1554 }
1556 // path
1557 gchar *str = orig->svg_dump_path();
1558 if (patheffect)
1559 repr->setAttribute("inkscape:original-d", str);
1560 else
1561 repr->setAttribute("d", str);
1562 g_free(str);
1564 // restore id
1565 repr->setAttribute("id", id);
1567 // add the new repr to the parent
1568 parent->appendChild(repr);
1570 // move to the saved position
1571 repr->setPosition(pos > 0 ? pos : 0);
1573 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1575 // reapply the transform
1576 sp_item_write_transform(newitem, repr, transform);
1578 // restore path effect
1579 repr->setAttribute("inkscape:path-effect", patheffect);
1581 //If we are not in a selected group
1582 if (modifySelection)
1583 selection->add(repr);
1585 Inkscape::GC::release(repr);
1587 // clean up
1588 if (orig) delete orig;
1590 return true;
1591 }
1594 bool
1595 sp_selected_path_simplify_items(SPDesktop *desktop,
1596 Inkscape::Selection *selection, GSList *items,
1597 float threshold, bool justCoalesce,
1598 float angleLimit, bool breakableAngles,
1599 bool modifySelection)
1600 {
1601 bool simplifyIndividualPaths =
1602 (bool) prefs_get_int_attribute("options.simplifyindividualpaths", "value", 0);
1604 gchar *simplificationType;
1605 if (simplifyIndividualPaths) {
1606 simplificationType = _("Simplifying paths (separately):");
1607 } else {
1608 simplificationType = _("Simplifying paths:");
1609 }
1611 bool didSomething = false;
1613 boost::optional<NR::Rect> selectionBbox = selection->bounds();
1614 if (!selectionBbox) {
1615 return false;
1616 }
1617 gdouble selectionSize = L2(selectionBbox->dimensions());
1619 gdouble simplifySize = selectionSize;
1621 int pathsSimplified = 0;
1622 int totalPathCount = g_slist_length(items);
1624 // set "busy" cursor
1625 desktop->setWaitingCursor();
1627 for (; items != NULL; items = items->next) {
1628 SPItem *item = (SPItem *) items->data;
1630 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1631 continue;
1633 if (simplifyIndividualPaths) {
1634 boost::optional<NR::Rect> itemBbox = item->getBounds(sp_item_i2d_affine(item));
1635 if (itemBbox) {
1636 simplifySize = L2(itemBbox->dimensions());
1637 } else {
1638 simplifySize = 0;
1639 }
1640 }
1642 pathsSimplified++;
1644 if (pathsSimplified % 20 == 0) {
1645 gchar *message = g_strdup_printf(_("%s <b>%d</b> of <b>%d</b> paths simplified..."), simplificationType, pathsSimplified, totalPathCount);
1646 desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, message);
1647 }
1649 didSomething |= sp_selected_path_simplify_item(desktop, selection, item,
1650 threshold, justCoalesce, angleLimit, breakableAngles, simplifySize, modifySelection);
1651 }
1653 desktop->clearWaitingCursor();
1655 if (pathsSimplified > 20) {
1656 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, g_strdup_printf(_("<b>%d</b> paths simplified."), pathsSimplified));
1657 }
1659 return didSomething;
1660 }
1662 void
1663 sp_selected_path_simplify_selection(float threshold, bool justCoalesce,
1664 float angleLimit, bool breakableAngles)
1665 {
1666 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1668 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1670 if (selection->isEmpty()) {
1671 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE,
1672 _("Select <b>path(s)</b> to simplify."));
1673 return;
1674 }
1676 GSList *items = g_slist_copy((GSList *) selection->itemList());
1678 bool didSomething = sp_selected_path_simplify_items(desktop, selection,
1679 items, threshold,
1680 justCoalesce,
1681 angleLimit,
1682 breakableAngles, true);
1684 if (didSomething)
1685 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_SIMPLIFY,
1686 _("Simplify"));
1687 else
1688 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to simplify in the selection."));
1690 }
1693 // globals for keeping track of accelerated simplify
1694 static double previousTime = 0.0;
1695 static gdouble simplifyMultiply = 1.0;
1697 void
1698 sp_selected_path_simplify(void)
1699 {
1700 gdouble simplifyThreshold =
1701 prefs_get_double_attribute("options.simplifythreshold", "value", 0.003);
1702 bool simplifyJustCoalesce =
1703 (bool) prefs_get_int_attribute("options.simplifyjustcoalesce", "value", 0);
1705 //Get the current time
1706 GTimeVal currentTimeVal;
1707 g_get_current_time(¤tTimeVal);
1708 double currentTime = currentTimeVal.tv_sec * 1000000 +
1709 currentTimeVal.tv_usec;
1711 //Was the previous call to this function recent? (<0.5 sec)
1712 if (previousTime > 0.0 && currentTime - previousTime < 500000.0) {
1714 // add to the threshold 1/2 of its original value
1715 simplifyMultiply += 0.5;
1716 simplifyThreshold *= simplifyMultiply;
1718 } else {
1719 // reset to the default
1720 simplifyMultiply = 1;
1721 }
1723 //remember time for next call
1724 previousTime = currentTime;
1726 //g_print("%g\n", simplify_threshold);
1728 //Make the actual call
1729 sp_selected_path_simplify_selection(simplifyThreshold,
1730 simplifyJustCoalesce, 0.0, false);
1731 }
1735 // fonctions utilitaires
1737 bool
1738 Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who)
1739 {
1740 if (who == NULL || a == NULL)
1741 return false;
1742 if (who == a)
1743 return true;
1744 return Ancetre(sp_repr_parent(a), who);
1745 }
1747 Path *
1748 Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
1749 {
1750 SPCurve *curve = curve_for_item(item);
1752 if (curve == NULL)
1753 return NULL;
1755 Geom::PathVector *pathv = pathvector_for_curve(item, curve, doTransformation, transformFull, Geom::identity(), Geom::identity());
1756 curve->unref();
1758 Path *dest = new Path;
1759 dest->LoadPathVector(*pathv);
1760 delete pathv;
1762 return dest;
1763 }
1765 /*
1766 * NOTE: Returns empty pathvector if curve == NULL
1767 * TODO: see if calling this method can be optimized. All the pathvector copying might be slow.
1768 */
1769 Geom::PathVector*
1770 pathvector_for_curve(SPItem *item, SPCurve *curve, bool doTransformation, bool transformFull, Geom::Matrix extraPreAffine, Geom::Matrix extraPostAffine)
1771 {
1772 if (curve == NULL)
1773 return NULL;
1775 Geom::PathVector *dest = new Geom::PathVector;
1776 *dest = curve->get_pathvector(); // Make a copy; must be freed by the caller!
1778 if (doTransformation) {
1779 if (transformFull) {
1780 *dest *= extraPreAffine * sp_item_i2doc_affine(item) * extraPostAffine;
1781 } else {
1782 *dest *= extraPreAffine * (Geom::Matrix)item->transform * extraPostAffine;
1783 }
1784 } else {
1785 *dest *= extraPreAffine * extraPostAffine;
1786 }
1788 return dest;
1789 }
1791 SPCurve* curve_for_item(SPItem *item)
1792 {
1793 if (!item)
1794 return NULL;
1796 SPCurve *curve = NULL;
1797 if (SP_IS_SHAPE(item)) {
1798 if (SP_IS_PATH(item)) {
1799 curve = sp_path_get_curve_for_edit(SP_PATH(item));
1800 } else {
1801 curve = sp_shape_get_curve(SP_SHAPE(item));
1802 }
1803 }
1804 else if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item))
1805 {
1806 curve = te_get_layout(item)->convertToCurves();
1807 }
1808 else if (SP_IS_IMAGE(item))
1809 {
1810 curve = sp_image_get_curve(SP_IMAGE(item));
1811 }
1813 return curve; // do not forget to unref the curve at some point!
1814 }
1816 Path *bpath_to_Path(NArtBpath const *bpath)
1817 {
1818 Path *dest = new Path;
1819 dest->SetBackData(false);
1820 {
1821 int i;
1822 bool closed = false;
1823 float lastX = 0.0;
1824 float lastY = 0.0;
1826 for (i = 0; bpath[i].code != NR_END; i++) {
1827 switch (bpath[i].code) {
1828 case NR_LINETO:
1829 lastX = bpath[i].x3;
1830 lastY = bpath[i].y3;
1831 {
1832 NR::Point tmp(lastX, lastY);
1833 dest->LineTo(tmp);
1834 }
1835 break;
1837 case NR_CURVETO:
1838 {
1839 NR::Point tmp, tms, tme;
1840 tmp[0]=bpath[i].x3;
1841 tmp[1]=bpath[i].y3;
1842 tms[0]=3 * (bpath[i].x1 - lastX);
1843 tms[1]=3 * (bpath[i].y1 - lastY);
1844 tme[0]=3 * (bpath[i].x3 - bpath[i].x2);
1845 tme[1]=3 * (bpath[i].y3 - bpath[i].y2);
1846 dest->CubicTo(tmp,tms,tme);
1847 }
1848 lastX = bpath[i].x3;
1849 lastY = bpath[i].y3;
1850 break;
1852 case NR_MOVETO_OPEN:
1853 case NR_MOVETO:
1854 if (closed)
1855 dest->Close();
1856 closed = (bpath[i].code == NR_MOVETO);
1857 lastX = bpath[i].x3;
1858 lastY = bpath[i].y3;
1859 {
1860 NR::Point tmp(lastX, lastY);
1861 dest->MoveTo(tmp);
1862 }
1863 break;
1864 default:
1865 break;
1866 }
1867 }
1868 if (closed)
1869 dest->Close();
1870 }
1871 return dest;
1872 }
1874 boost::optional<Path::cut_position> get_nearest_position_on_Path(Path *path, NR::Point p, unsigned seg)
1875 {
1876 //get nearest position on path
1877 Path::cut_position pos = path->PointToCurvilignPosition(p, seg);
1878 return pos;
1879 }
1881 NR::Point get_point_on_Path(Path *path, int piece, double t)
1882 {
1883 NR::Point p;
1884 path->PointAt(piece, t, p);
1885 return p;
1886 }
1889 /*
1890 Local Variables:
1891 mode:c++
1892 c-file-style:"stroustrup"
1893 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1894 indent-tabs-mode:nil
1895 fill-column:99
1896 End:
1897 */
1898 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :