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"
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>
57 #include "livarot/Path.h"
58 #include "livarot/Shape.h"
60 #include "splivarot.h"
62 bool Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who);
64 void sp_selected_path_boolop(bool_op bop, const unsigned int verb=SP_VERB_NONE, const Glib::ustring description="");
65 void sp_selected_path_do_offset(bool expand, double prefOffset);
66 void sp_selected_path_create_offset_object(int expand, bool updating);
68 void
69 sp_selected_path_union()
70 {
71 sp_selected_path_boolop(bool_op_union, SP_VERB_SELECTION_UNION, _("Union"));
72 }
74 void
75 sp_selected_path_union_skip_undo()
76 {
77 sp_selected_path_boolop(bool_op_union, SP_VERB_NONE, _("Union"));
78 }
80 void
81 sp_selected_path_intersect()
82 {
83 sp_selected_path_boolop(bool_op_inters, SP_VERB_SELECTION_INTERSECT, _("Intersection"));
84 }
86 void
87 sp_selected_path_diff()
88 {
89 sp_selected_path_boolop(bool_op_diff, SP_VERB_SELECTION_DIFF, _("Difference"));
90 }
92 void
93 sp_selected_path_diff_skip_undo()
94 {
95 sp_selected_path_boolop(bool_op_diff, SP_VERB_NONE, _("Difference"));
96 }
98 void
99 sp_selected_path_symdiff()
100 {
101 sp_selected_path_boolop(bool_op_symdiff, SP_VERB_SELECTION_SYMDIFF, _("Exclusion"));
102 }
103 void
104 sp_selected_path_cut()
105 {
106 sp_selected_path_boolop(bool_op_cut, SP_VERB_SELECTION_CUT, _("Division"));
107 }
108 void
109 sp_selected_path_slice()
110 {
111 sp_selected_path_boolop(bool_op_slice, SP_VERB_SELECTION_SLICE, _("Cut path"));
112 }
115 // boolean operations
116 // take the source paths from the file, do the operation, delete the originals and add the results
117 void
118 sp_selected_path_boolop(bool_op bop, const unsigned int verb, const Glib::ustring description)
119 {
120 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
122 Inkscape::Selection *selection = sp_desktop_selection(desktop);
124 GSList *il = (GSList *) selection->itemList();
126 // allow union on a single object for the purpose of removing self overlapse (svn log, revision 13334)
127 if ( (g_slist_length(il) < 2) && (bop != bool_op_union)) {
128 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 2 paths</b> to perform a boolean operation."));
129 return;
130 }
131 else if ( g_slist_length(il) < 1 ) {
132 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>at least 1 path</b> to perform a boolean union."));
133 return;
134 }
136 if (g_slist_length(il) > 2) {
137 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
138 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Select <b>exactly 2 paths</b> to perform difference, XOR, division, or path cut."));
139 return;
140 }
141 }
143 // reverseOrderForOp marks whether the order of the list is the top->down order
144 // it's only used when there are 2 objects, and for operations who need to know the
145 // topmost object (differences, cuts)
146 bool reverseOrderForOp = false;
148 // mettre les elements de la liste dans l'ordre pour ces operations
149 if (bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice) {
150 // check in the tree to find which element of the selection list is topmost (for 2-operand commands only)
151 Inkscape::XML::Node *a = SP_OBJECT_REPR(il->data);
152 Inkscape::XML::Node *b = SP_OBJECT_REPR(il->next->data);
154 if (a == NULL || b == NULL) {
155 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."));
156 return;
157 }
159 if (Ancetre(a, b)) {
160 // a is the parent of b, already in the proper order
161 } else if (Ancetre(b, a)) {
162 // reverse order
163 reverseOrderForOp = true;
164 } else {
166 // objects are not in parent/child relationship;
167 // find their lowest common ancestor
168 Inkscape::XML::Node *dad = LCA(a, b);
169 if (dad == NULL) {
170 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."));
171 return;
172 }
174 // find the children of the LCA that lead from it to the a and b
175 Inkscape::XML::Node *as = AncetreFils(a, dad);
176 Inkscape::XML::Node *bs = AncetreFils(b, dad);
178 // find out which comes first
179 for (Inkscape::XML::Node *child = dad->firstChild(); child; child = child->next()) {
180 if (child == as) {
181 /* a first, so reverse. */
182 reverseOrderForOp = true;
183 break;
184 }
185 if (child == bs)
186 break;
187 }
188 }
189 }
191 il = g_slist_copy(il);
193 // first check if all the input objects have shapes
194 // otherwise bail out
195 for (GSList *l = il; l != NULL; l = l->next)
196 {
197 SPItem *item = SP_ITEM(l->data);
198 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item) && !SP_IS_FLOWTEXT(item))
199 {
200 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("One of the objects is <b>not a path</b>, cannot perform boolean operation."));
201 g_slist_free(il);
202 return;
203 }
204 }
206 // extract the livarot Paths from the source objects
207 // also get the winding rule specified in the style
208 int nbOriginaux = g_slist_length(il);
209 std::vector<Path *> originaux(nbOriginaux);
210 std::vector<FillRule> origWind(nbOriginaux);
211 int curOrig;
212 {
213 curOrig = 0;
214 for (GSList *l = il; l != NULL; l = l->next)
215 {
216 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(il->data), "style");
217 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
218 if (val && strcmp(val, "nonzero") == 0) {
219 origWind[curOrig]= fill_nonZero;
220 } else if (val && strcmp(val, "evenodd") == 0) {
221 origWind[curOrig]= fill_oddEven;
222 } else {
223 origWind[curOrig]= fill_nonZero;
224 }
226 originaux[curOrig] = Path_for_item((SPItem *) l->data, true, true);
227 if (originaux[curOrig] == NULL || originaux[curOrig]->descr_cmd.size() <= 1)
228 {
229 for (int i = curOrig; i >= 0; i--) delete originaux[i];
230 g_slist_free(il);
231 return;
232 }
233 curOrig++;
234 }
235 }
236 // reverse if needed
237 // note that the selection list keeps its order
238 if ( reverseOrderForOp ) {
239 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
240 FillRule swai=origWind[0]; origWind[0]=origWind[1]; origWind[1]=swai;
241 }
243 // and work
244 // some temporary instances, first
245 Shape *theShapeA = new Shape;
246 Shape *theShapeB = new Shape;
247 Shape *theShape = new Shape;
248 Path *res = new Path;
249 res->SetBackData(false);
250 Path::cut_position *toCut=NULL;
251 int nbToCut=0;
253 if ( bop == bool_op_inters || bop == bool_op_union || bop == bool_op_diff || bop == bool_op_symdiff ) {
254 // true boolean op
255 // get the polygons of each path, with the winding rule specified, and apply the operation iteratively
256 originaux[0]->ConvertWithBackData(0.1);
258 originaux[0]->Fill(theShape, 0);
260 theShapeA->ConvertToShape(theShape, origWind[0]);
262 curOrig = 1;
263 for (GSList *l = il->next; l != NULL; l = l->next) {
264 originaux[curOrig]->ConvertWithBackData(0.1);
266 originaux[curOrig]->Fill(theShape, curOrig);
268 theShapeB->ConvertToShape(theShape, origWind[curOrig]);
270 // les elements arrivent en ordre inverse dans la liste
271 theShape->Booleen(theShapeB, theShapeA, bop);
273 {
274 Shape *swap = theShape;
275 theShape = theShapeA;
276 theShapeA = swap;
277 }
278 curOrig++;
279 }
281 {
282 Shape *swap = theShape;
283 theShape = theShapeA;
284 theShapeA = swap;
285 }
287 } else if ( bop == bool_op_cut ) {
288 // cuts= sort of a bastard boolean operation, thus not the axact same modus operandi
289 // technically, the cut path is not necessarily a polygon (thus has no winding rule)
290 // it is just uncrossed, and cleaned from duplicate edges and points
291 // then it's fed to Booleen() which will uncross it against the other path
292 // then comes the trick: each edge of the cut path is duplicated (one in each direction),
293 // thus making a polygon. the weight of the edges of the cut are all 0, but
294 // the Booleen need to invert the ones inside the source polygon (for the subsequent
295 // ConvertToForme)
297 // the cut path needs to have the highest pathID in the back data
298 // that's how the Booleen() function knows it's an edge of the cut
300 // FIXME: this gives poor results, the final paths are full of extraneous nodes. Decreasing
301 // ConvertWithBackData parameter below simply increases the number of nodes, so for now I
302 // left it at 1.0. Investigate replacing this by a combination of difference and
303 // intersection of the same two paths. -- bb
304 {
305 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
306 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
307 }
308 originaux[0]->ConvertWithBackData(1.0);
310 originaux[0]->Fill(theShape, 0);
312 theShapeA->ConvertToShape(theShape, origWind[0]);
314 originaux[1]->ConvertWithBackData(1.0);
316 originaux[1]->Fill(theShape, 1,false,false,false); //do not closeIfNeeded
318 theShapeB->ConvertToShape(theShape, fill_justDont); // fill_justDont doesn't computes winding numbers
320 // les elements arrivent en ordre inverse dans la liste
321 theShape->Booleen(theShapeB, theShapeA, bool_op_cut, 1);
323 } else if ( bop == bool_op_slice ) {
324 // slice is not really a boolean operation
325 // you just put the 2 shapes in a single polygon, uncross it
326 // the points where the degree is > 2 are intersections
327 // just check it's an intersection on the path you want to cut, and keep it
328 // the intersections you have found are then fed to ConvertPositionsToMoveTo() which will
329 // make new subpath at each one of these positions
330 // inversion pour l'op\8eration
331 {
332 Path* swap=originaux[0];originaux[0]=originaux[1];originaux[1]=swap;
333 int swai=origWind[0];origWind[0]=origWind[1];origWind[1]=(fill_typ)swai;
334 }
335 originaux[0]->ConvertWithBackData(1.0);
337 originaux[0]->Fill(theShapeA, 0,false,false,false); // don't closeIfNeeded
339 originaux[1]->ConvertWithBackData(1.0);
341 originaux[1]->Fill(theShapeA, 1,true,false,false);// don't closeIfNeeded and just dump in the shape, don't reset it
343 theShape->ConvertToShape(theShapeA, fill_justDont);
345 if ( theShape->hasBackData() ) {
346 // should always be the case, but ya never know
347 {
348 for (int i = 0; i < theShape->numberOfPoints(); i++) {
349 if ( theShape->getPoint(i).totalDegree() > 2 ) {
350 // possibly an intersection
351 // we need to check that at least one edge from the source path is incident to it
352 // before we declare it's an intersection
353 int cb = theShape->getPoint(i).incidentEdge[FIRST];
354 int nbOrig=0;
355 int nbOther=0;
356 int piece=-1;
357 float t=0.0;
358 while ( cb >= 0 && cb < theShape->numberOfEdges() ) {
359 if ( theShape->ebData[cb].pathID == 0 ) {
360 // the source has an edge incident to the point, get its position on the path
361 piece=theShape->ebData[cb].pieceID;
362 if ( theShape->getEdge(cb).st == i ) {
363 t=theShape->ebData[cb].tSt;
364 } else {
365 t=theShape->ebData[cb].tEn;
366 }
367 nbOrig++;
368 }
369 if ( theShape->ebData[cb].pathID == 1 ) nbOther++; // the cut is incident to this point
370 cb=theShape->NextAt(i, cb);
371 }
372 if ( nbOrig > 0 && nbOther > 0 ) {
373 // point incident to both path and cut: an intersection
374 // note that you only keep one position on the source; you could have degenerate
375 // cases where the source crosses itself at this point, and you wouyld miss an intersection
376 toCut=(Path::cut_position*)realloc(toCut, (nbToCut+1)*sizeof(Path::cut_position));
377 toCut[nbToCut].piece=piece;
378 toCut[nbToCut].t=t;
379 nbToCut++;
380 }
381 }
382 }
383 }
384 {
385 // i think it's useless now
386 int i = theShape->numberOfEdges() - 1;
387 for (;i>=0;i--) {
388 if ( theShape->ebData[i].pathID == 1 ) {
389 theShape->SubEdge(i);
390 }
391 }
392 }
394 }
395 }
397 int* nesting=NULL;
398 int* conts=NULL;
399 int nbNest=0;
400 // pour compenser le swap juste avant
401 if ( bop == bool_op_slice ) {
402 // theShape->ConvertToForme(res, nbOriginaux, originaux, true);
403 // res->ConvertForcedToMoveTo();
404 res->Copy(originaux[0]);
405 res->ConvertPositionsToMoveTo(nbToCut, toCut); // cut where you found intersections
406 free(toCut);
407 } else if ( bop == bool_op_cut ) {
408 // il faut appeler pour desallouer PointData (pas vital, mais bon)
409 // the Booleen() function did not deallocated the point_data array in theShape, because this
410 // function needs it.
411 // this function uses the point_data to get the winding number of each path (ie: is a hole or not)
412 // for later reconstruction in objects, you also need to extract which path is parent of holes (nesting info)
413 theShape->ConvertToFormeNested(res, nbOriginaux, &originaux[0], 1, nbNest, nesting, conts);
414 } else {
415 theShape->ConvertToForme(res, nbOriginaux, &originaux[0]);
416 }
418 delete theShape;
419 delete theShapeA;
420 delete theShapeB;
421 for (int i = 0; i < nbOriginaux; i++) delete originaux[i];
423 if (res->descr_cmd.size() <= 1)
424 {
425 // only one command, presumably a moveto: it isn't a path
426 for (GSList *l = il; l != NULL; l = l->next)
427 {
428 SP_OBJECT(l->data)->deleteObject();
429 }
430 sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,
431 description);
432 selection->clear();
434 delete res;
435 g_slist_free(il);
436 return;
437 }
439 // get the source path object
440 SPObject *source;
441 if ( bop == bool_op_diff || bop == bool_op_symdiff || bop == bool_op_cut || bop == bool_op_slice ) {
442 if (reverseOrderForOp) {
443 source = SP_OBJECT(il->data);
444 } else {
445 source = SP_OBJECT(il->next->data);
446 }
447 } else {
448 // find out the bottom object
449 GSList *sorted = g_slist_copy((GSList *) selection->reprList());
451 sorted = g_slist_sort(sorted, (GCompareFunc) sp_repr_compare_position);
453 source = sp_desktop_document(desktop)->
454 getObjectByRepr((Inkscape::XML::Node *)sorted->data);
456 g_slist_free(sorted);
457 }
459 // adjust style properties that depend on a possible transform in the source object in order
460 // to get a correct style attribute for the new path
461 SPItem* item_source = SP_ITEM(source);
462 NR::Matrix i2root = from_2geom(sp_item_i2root_affine(item_source));
463 sp_item_adjust_stroke(item_source, NR::expansion(i2root));
464 sp_item_adjust_pattern(item_source, i2root);
465 sp_item_adjust_gradient(item_source, i2root);
466 sp_item_adjust_livepatheffect(item_source, i2root);
468 Inkscape::XML::Node *repr_source = SP_OBJECT_REPR(source);
470 // remember important aspects of the source path, to be restored
471 gint pos = repr_source->position();
472 Inkscape::XML::Node *parent = sp_repr_parent(repr_source);
473 gchar const *id = repr_source->attribute("id");
474 gchar const *style = repr_source->attribute("style");
475 gchar const *mask = repr_source->attribute("mask");
476 gchar const *clip_path = repr_source->attribute("clip-path");
478 // remove source paths
479 selection->clear();
480 for (GSList *l = il; l != NULL; l = l->next) {
481 // if this is the bottommost object,
482 if (!strcmp(SP_OBJECT_REPR(l->data)->attribute("id"), id)) {
483 // delete it so that its clones don't get alerted; this object will be restored shortly, with the same id
484 SP_OBJECT(l->data)->deleteObject(false);
485 } else {
486 // delete the object for real, so that its clones can take appropriate action
487 SP_OBJECT(l->data)->deleteObject();
488 }
489 }
490 g_slist_free(il);
492 // premultiply by the inverse of parent's repr
493 SPItem *parent_item = SP_ITEM(sp_desktop_document(desktop)->getObjectByRepr(parent));
494 NR::Matrix local = from_2geom(sp_item_i2doc_affine(parent_item));
495 gchar *transform = sp_svg_transform_write(local.inverse());
497 // now that we have the result, add it on the canvas
498 if ( bop == bool_op_cut || bop == bool_op_slice ) {
499 int nbRP=0;
500 Path** resPath;
501 if ( bop == bool_op_slice ) {
502 // there are moveto's at each intersection, but it's still one unique path
503 // so break it down and add each subpath independently
504 // we could call break_apart to do this, but while we have the description...
505 resPath=res->SubPaths(nbRP, false);
506 } else {
507 // cut operation is a bit wicked: you need to keep holes
508 // that's why you needed the nesting
509 // ConvertToFormeNested() dumped all the subpath in a single Path "res", so we need
510 // to get the path for each part of the polygon. that's why you need the nesting info:
511 // to know in wich subpath to add a subpath
512 resPath=res->SubPathsWithNesting(nbRP, true, nbNest, nesting, conts);
514 // cleaning
515 if ( conts ) free(conts);
516 if ( nesting ) free(nesting);
517 }
519 // add all the pieces resulting from cut or slice
520 for (int i=0;i<nbRP;i++) {
521 gchar *d = resPath[i]->svg_dump_path();
523 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
524 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
525 repr->setAttribute("style", style);
526 if (mask)
527 repr->setAttribute("mask", mask);
528 if (clip_path)
529 repr->setAttribute("clip-path", clip_path);
531 repr->setAttribute("d", d);
532 g_free(d);
534 // for slice, remove fill
535 if (bop == bool_op_slice) {
536 SPCSSAttr *css;
538 css = sp_repr_css_attr_new();
539 sp_repr_css_set_property(css, "fill", "none");
541 sp_repr_css_change(repr, css, "style");
543 sp_repr_css_attr_unref(css);
544 }
546 // we assign the same id on all pieces, but it on adding to document, it will be changed on all except one
547 // this means it's basically random which of the pieces inherits the original's id and clones
548 // a better algorithm might figure out e.g. the biggest piece
549 repr->setAttribute("id", id);
551 repr->setAttribute("transform", transform);
553 // add the new repr to the parent
554 parent->appendChild(repr);
556 // move to the saved position
557 repr->setPosition(pos > 0 ? pos : 0);
559 selection->add(repr);
560 Inkscape::GC::release(repr);
562 delete resPath[i];
563 }
564 if ( resPath ) free(resPath);
566 } else {
567 gchar *d = res->svg_dump_path();
569 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
570 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
571 repr->setAttribute("style", style);
573 if ( mask )
574 repr->setAttribute("mask", mask);
576 if ( clip_path )
577 repr->setAttribute("clip-path", clip_path);
579 repr->setAttribute("d", d);
580 g_free(d);
582 repr->setAttribute("transform", transform);
584 repr->setAttribute("id", id);
585 parent->appendChild(repr);
586 repr->setPosition(pos > 0 ? pos : 0);
588 selection->add(repr);
589 Inkscape::GC::release(repr);
590 }
592 g_free(transform);
594 if (verb != SP_VERB_NONE) {
595 sp_document_done(sp_desktop_document(desktop), verb, description);
596 }
598 delete res;
599 }
602 void
603 sp_selected_path_outline()
604 {
605 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
607 Inkscape::Selection *selection = sp_desktop_selection(desktop);
609 if (selection->isEmpty()) {
610 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>stroked path(s)</b> to convert stroke to path."));
611 return;
612 }
614 bool did = false;
616 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
617 items != NULL;
618 items = items->next) {
620 SPItem *item = (SPItem *) items->data;
622 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
623 continue;
625 SPCurve *curve = NULL;
626 if (SP_IS_SHAPE(item)) {
627 curve = sp_shape_get_curve(SP_SHAPE(item));
628 if (curve == NULL)
629 continue;
630 }
631 if (SP_IS_TEXT(item)) {
632 curve = SP_TEXT(item)->getNormalizedBpath();
633 if (curve == NULL)
634 continue;
635 }
637 { // pas de stroke pas de chocolat
638 SPCSSAttr *css = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
639 gchar const *val = sp_repr_css_property(css, "stroke", NULL);
641 if (val == NULL || strcmp(val, "none") == 0) {
642 curve->unref();
643 continue;
644 }
645 }
647 // remember old stroke style, to be set on fill
648 SPCSSAttr *ncss;
649 {
650 SPCSSAttr *ocss = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
651 gchar const *val = sp_repr_css_property(ocss, "stroke", NULL);
652 gchar const *opac = sp_repr_css_property(ocss, "stroke-opacity", NULL);
654 ncss = sp_repr_css_attr_new();
656 sp_repr_css_set_property(ncss, "stroke", "none");
657 sp_repr_css_set_property(ncss, "stroke-opacity", "1.0");
658 sp_repr_css_set_property(ncss, "fill", val);
659 if ( opac ) {
660 sp_repr_css_set_property(ncss, "fill-opacity", opac);
661 } else {
662 sp_repr_css_set_property(ncss, "fill-opacity", "1.0");
663 }
664 sp_repr_css_unset_property(ncss, "marker-start");
665 sp_repr_css_unset_property(ncss, "marker-mid");
666 sp_repr_css_unset_property(ncss, "marker-end");
667 }
669 NR::Matrix const transform(item->transform);
670 float const scale = NR::expansion(transform);
671 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
672 SPStyle *i_style = SP_OBJECT(item)->style;
673 gchar const *mask = SP_OBJECT_REPR(item)->attribute("mask");
674 gchar const *clip_path = SP_OBJECT_REPR(item)->attribute("clip-path");
676 float o_width, o_miter;
677 JoinType o_join;
678 ButtType o_butt;
680 {
681 int jointype, captype;
683 jointype = i_style->stroke_linejoin.computed;
684 captype = i_style->stroke_linecap.computed;
685 o_width = i_style->stroke_width.computed;
687 switch (jointype) {
688 case SP_STROKE_LINEJOIN_MITER:
689 o_join = join_pointy;
690 break;
691 case SP_STROKE_LINEJOIN_ROUND:
692 o_join = join_round;
693 break;
694 default:
695 o_join = join_straight;
696 break;
697 }
699 switch (captype) {
700 case SP_STROKE_LINECAP_SQUARE:
701 o_butt = butt_square;
702 break;
703 case SP_STROKE_LINECAP_ROUND:
704 o_butt = butt_round;
705 break;
706 default:
707 o_butt = butt_straight;
708 break;
709 }
711 if (o_width < 0.1)
712 o_width = 0.1;
713 o_miter = i_style->stroke_miterlimit.value * o_width;
714 }
716 Path *orig = Path_for_item(item, false);
717 if (orig == NULL) {
718 g_free(style);
719 curve->unref();
720 continue;
721 }
723 Path *res = new Path;
724 res->SetBackData(false);
726 if (i_style->stroke_dash.n_dash) {
727 // For dashed strokes, use Stroke method, because Outline can't do dashes
728 // However Stroke adds lots of extra nodes _or_ makes the path crooked, so consider this a temporary workaround
730 orig->ConvertWithBackData(0.1);
732 orig->DashPolylineFromStyle(i_style, scale, 0);
734 Shape* theShape = new Shape;
735 orig->Stroke(theShape, false, 0.5*o_width, o_join, o_butt,
736 0.5 * o_miter);
737 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
739 Shape *theRes = new Shape;
741 theRes->ConvertToShape(theShape, fill_positive);
743 Path *originaux[1];
744 originaux[0] = res;
745 theRes->ConvertToForme(orig, 1, originaux);
747 res->Coalesce(5.0);
749 delete theShape;
750 delete theRes;
752 } else {
754 orig->Outline(res, 0.5 * o_width, o_join, o_butt, 0.5 * o_miter);
756 orig->Coalesce(0.5 * o_width);
758 Shape *theShape = new Shape;
759 Shape *theRes = new Shape;
761 res->ConvertWithBackData(1.0);
762 res->Fill(theShape, 0);
763 theRes->ConvertToShape(theShape, fill_positive);
765 Path *originaux[1];
766 originaux[0] = res;
767 theRes->ConvertToForme(orig, 1, originaux);
769 delete theShape;
770 delete theRes;
771 }
773 if (orig->descr_cmd.size() <= 1) {
774 // ca a merd\8e, ou bien le resultat est vide
775 delete res;
776 delete orig;
777 g_free(style);
778 continue;
779 }
781 did = true;
783 // remember the position of the item
784 gint pos = SP_OBJECT_REPR(item)->position();
785 // remember parent
786 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
787 // remember id
788 char const *id = SP_OBJECT_REPR(item)->attribute("id");
790 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
792 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
793 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
795 // restore old style
796 repr->setAttribute("style", style);
798 // set old stroke style on fill
799 sp_repr_css_change(repr, ncss, "style");
801 sp_repr_css_attr_unref(ncss);
803 gchar *str = orig->svg_dump_path();
804 repr->setAttribute("d", str);
805 g_free(str);
807 if (mask)
808 repr->setAttribute("mask", mask);
809 if (clip_path)
810 repr->setAttribute("clip-path", clip_path);
812 if (SP_IS_SHAPE(item) && sp_shape_has_markers (SP_SHAPE(item))) {
814 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
815 Inkscape::XML::Node *g_repr = xml_doc->createElement("svg:g");
817 // add the group to the parent
818 parent->appendChild(g_repr);
819 // move to the saved position
820 g_repr->setPosition(pos > 0 ? pos : 0);
822 g_repr->appendChild(repr);
823 repr->setAttribute("id", id);
824 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
825 sp_item_write_transform(newitem, repr, transform);
827 SPShape *shape = SP_SHAPE(item);
829 for (NArtBpath const* bp = SP_CURVE_BPATH(shape->curve); bp->code != NR_END; bp++) {
830 for (int m = SP_MARKER_LOC_START; m < SP_MARKER_LOC_QTY; m++) {
831 if (sp_shape_marker_required (shape, m, bp)) {
833 SPMarker* marker = SP_MARKER (shape->marker[m]);
834 SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (shape->marker[m]));
836 NR::Matrix tr(sp_shape_marker_get_transform(shape, bp));
838 if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
839 tr = NR::scale(i_style->stroke_width.computed) * tr;
840 }
842 // total marker transform
843 tr = marker_item->transform * marker->c2p * tr * transform;
845 if (SP_OBJECT_REPR(marker_item)) {
846 Inkscape::XML::Node *m_repr = SP_OBJECT_REPR(marker_item)->duplicate(xml_doc);
847 g_repr->appendChild(m_repr);
848 SPItem *marker_item = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(m_repr);
849 sp_item_write_transform(marker_item, m_repr, tr);
850 }
851 }
852 }
853 }
856 selection->add(g_repr);
858 Inkscape::GC::release(g_repr);
861 } else {
863 // add the new repr to the parent
864 parent->appendChild(repr);
866 // move to the saved position
867 repr->setPosition(pos > 0 ? pos : 0);
869 repr->setAttribute("id", id);
871 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
872 sp_item_write_transform(newitem, repr, transform);
874 selection->add(repr);
876 }
878 Inkscape::GC::release(repr);
880 curve->unref();
881 selection->remove(item);
882 SP_OBJECT(item)->deleteObject(false);
884 }
886 delete res;
887 delete orig;
888 g_free(style);
890 }
892 if (did) {
893 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_OUTLINE,
894 _("Convert stroke to path"));
895 } else {
896 // TRANSLATORS: "to outline" means "to convert stroke to path"
897 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No stroked paths</b> in the selection."));
898 return;
899 }
900 }
903 void
904 sp_selected_path_offset()
905 {
906 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
908 sp_selected_path_do_offset(true, prefOffset);
909 }
910 void
911 sp_selected_path_inset()
912 {
913 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
915 sp_selected_path_do_offset(false, prefOffset);
916 }
918 void
919 sp_selected_path_offset_screen(double pixels)
920 {
921 sp_selected_path_do_offset(true, pixels / SP_ACTIVE_DESKTOP->current_zoom());
922 }
924 void
925 sp_selected_path_inset_screen(double pixels)
926 {
927 sp_selected_path_do_offset(false, pixels / SP_ACTIVE_DESKTOP->current_zoom());
928 }
931 void sp_selected_path_create_offset_object_zero()
932 {
933 sp_selected_path_create_offset_object(0, false);
934 }
936 void sp_selected_path_create_offset()
937 {
938 sp_selected_path_create_offset_object(1, false);
939 }
940 void sp_selected_path_create_inset()
941 {
942 sp_selected_path_create_offset_object(-1, false);
943 }
945 void sp_selected_path_create_updating_offset_object_zero()
946 {
947 sp_selected_path_create_offset_object(0, true);
948 }
950 void sp_selected_path_create_updating_offset()
951 {
952 sp_selected_path_create_offset_object(1, true);
953 }
954 void sp_selected_path_create_updating_inset()
955 {
956 sp_selected_path_create_offset_object(-1, true);
957 }
959 void
960 sp_selected_path_create_offset_object(int expand, bool updating)
961 {
962 Inkscape::Selection *selection;
963 Inkscape::XML::Node *repr;
964 SPItem *item;
965 SPCurve *curve;
966 gchar *style, *str;
967 SPDesktop *desktop;
968 float o_width, o_miter;
969 JoinType o_join;
970 ButtType o_butt;
972 curve = NULL;
974 desktop = SP_ACTIVE_DESKTOP;
976 selection = sp_desktop_selection(desktop);
978 item = selection->singleItem();
980 if (item == NULL || ( !SP_IS_SHAPE(item) && !SP_IS_TEXT(item) ) ) {
981 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Selected object is <b>not a path</b>, cannot inset/outset."));
982 return;
983 }
984 if (SP_IS_SHAPE(item))
985 {
986 curve = sp_shape_get_curve(SP_SHAPE(item));
987 if (curve == NULL)
988 return;
989 }
990 if (SP_IS_TEXT(item))
991 {
992 curve = SP_TEXT(item)->getNormalizedBpath();
993 if (curve == NULL)
994 return;
995 }
997 NR::Matrix const transform(item->transform);
999 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1001 style = g_strdup(SP_OBJECT(item)->repr->attribute("style"));
1003 // remember the position of the item
1004 gint pos = SP_OBJECT_REPR(item)->position();
1005 // remember parent
1006 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1008 {
1009 SPStyle *i_style = SP_OBJECT(item)->style;
1010 int jointype, captype;
1012 jointype = i_style->stroke_linejoin.value;
1013 captype = i_style->stroke_linecap.value;
1014 o_width = i_style->stroke_width.computed;
1015 if (jointype == SP_STROKE_LINEJOIN_MITER)
1016 {
1017 o_join = join_pointy;
1018 }
1019 else if (jointype == SP_STROKE_LINEJOIN_ROUND)
1020 {
1021 o_join = join_round;
1022 }
1023 else
1024 {
1025 o_join = join_straight;
1026 }
1027 if (captype == SP_STROKE_LINECAP_SQUARE)
1028 {
1029 o_butt = butt_square;
1030 }
1031 else if (captype == SP_STROKE_LINECAP_ROUND)
1032 {
1033 o_butt = butt_round;
1034 }
1035 else
1036 {
1037 o_butt = butt_straight;
1038 }
1040 {
1041 double prefOffset = 1.0;
1042 prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", prefOffset);
1043 o_width = prefOffset;
1044 }
1046 if (o_width < 0.01)
1047 o_width = 0.01;
1048 o_miter = i_style->stroke_miterlimit.value * o_width;
1049 }
1051 Path *orig = Path_for_item(item, true, false);
1052 if (orig == NULL)
1053 {
1054 g_free(style);
1055 curve->unref();
1056 return;
1057 }
1059 Path *res = new Path;
1060 res->SetBackData(false);
1062 {
1063 Shape *theShape = new Shape;
1064 Shape *theRes = new Shape;
1066 orig->ConvertWithBackData(1.0);
1067 orig->Fill(theShape, 0);
1069 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1070 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1071 if (val && strcmp(val, "nonzero") == 0)
1072 {
1073 theRes->ConvertToShape(theShape, fill_nonZero);
1074 }
1075 else if (val && strcmp(val, "evenodd") == 0)
1076 {
1077 theRes->ConvertToShape(theShape, fill_oddEven);
1078 }
1079 else
1080 {
1081 theRes->ConvertToShape(theShape, fill_nonZero);
1082 }
1084 Path *originaux[1];
1085 originaux[0] = orig;
1086 theRes->ConvertToForme(res, 1, originaux);
1088 delete theShape;
1089 delete theRes;
1090 }
1092 curve->unref();
1094 if (res->descr_cmd.size() <= 1)
1095 {
1096 // pas vraiment de points sur le resultat
1097 // donc il ne reste rien
1098 sp_document_done(sp_desktop_document(desktop),
1099 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1100 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1101 (updating ? _("Create linked offset")
1102 : _("Create dynamic offset")));
1103 selection->clear();
1105 delete res;
1106 delete orig;
1107 g_free(style);
1108 return;
1109 }
1111 {
1112 gchar tstr[80];
1114 tstr[79] = '\0';
1116 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1117 repr = xml_doc->createElement("svg:path");
1118 repr->setAttribute("sodipodi:type", "inkscape:offset");
1119 sp_repr_set_svg_double(repr, "inkscape:radius", ( expand > 0
1120 ? o_width
1121 : expand < 0
1122 ? -o_width
1123 : 0 ));
1125 str = res->svg_dump_path();
1126 repr->setAttribute("inkscape:original", str);
1127 g_free(str);
1129 if ( updating ) {
1130 char const *id = SP_OBJECT(item)->repr->attribute("id");
1131 char const *uri = g_strdup_printf("#%s", id);
1132 repr->setAttribute("xlink:href", uri);
1133 g_free((void *) uri);
1134 } else {
1135 repr->setAttribute("inkscape:href", NULL);
1136 }
1138 repr->setAttribute("style", style);
1140 // add the new repr to the parent
1141 parent->appendChild(repr);
1143 // move to the saved position
1144 repr->setPosition(pos > 0 ? pos : 0);
1146 SPItem *nitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1148 if ( updating ) {
1149 // on conserve l'original
1150 // we reapply the transform to the original (offset will feel it)
1151 sp_item_write_transform(item, SP_OBJECT_REPR(item), transform);
1152 } else {
1153 // delete original, apply the transform to the offset
1154 SP_OBJECT(item)->deleteObject(false);
1155 sp_item_write_transform(nitem, repr, transform);
1156 }
1158 // The object just created from a temporary repr is only a seed.
1159 // We need to invoke its write which will update its real repr (in particular adding d=)
1160 SP_OBJECT(nitem)->updateRepr();
1162 Inkscape::GC::release(repr);
1164 selection->set(nitem);
1165 }
1167 sp_document_done(sp_desktop_document(desktop),
1168 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1169 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1170 (updating ? _("Create linked offset")
1171 : _("Create dynamic offset")));
1173 delete res;
1174 delete orig;
1176 g_free(style);
1177 }
1190 void
1191 sp_selected_path_do_offset(bool expand, double prefOffset)
1192 {
1193 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1195 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1197 if (selection->isEmpty()) {
1198 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to inset/outset."));
1199 return;
1200 }
1202 bool did = false;
1204 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1205 items != NULL;
1206 items = items->next) {
1208 SPItem *item = (SPItem *) items->data;
1210 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
1211 continue;
1213 SPCurve *curve = NULL;
1214 if (SP_IS_SHAPE(item)) {
1215 curve = sp_shape_get_curve(SP_SHAPE(item));
1216 if (curve == NULL)
1217 continue;
1218 }
1219 if (SP_IS_TEXT(item)) {
1220 curve = SP_TEXT(item)->getNormalizedBpath();
1221 if (curve == NULL)
1222 continue;
1223 }
1225 NR::Matrix const transform(item->transform);
1227 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1229 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1231 float o_width, o_miter;
1232 JoinType o_join;
1233 ButtType o_butt;
1235 {
1236 SPStyle *i_style = SP_OBJECT(item)->style;
1237 int jointype, captype;
1239 jointype = i_style->stroke_linejoin.value;
1240 captype = i_style->stroke_linecap.value;
1241 o_width = i_style->stroke_width.computed;
1243 switch (jointype) {
1244 case SP_STROKE_LINEJOIN_MITER:
1245 o_join = join_pointy;
1246 break;
1247 case SP_STROKE_LINEJOIN_ROUND:
1248 o_join = join_round;
1249 break;
1250 default:
1251 o_join = join_straight;
1252 break;
1253 }
1255 switch (captype) {
1256 case SP_STROKE_LINECAP_SQUARE:
1257 o_butt = butt_square;
1258 break;
1259 case SP_STROKE_LINECAP_ROUND:
1260 o_butt = butt_round;
1261 break;
1262 default:
1263 o_butt = butt_straight;
1264 break;
1265 }
1267 o_width = prefOffset;
1269 if (o_width < 0.1)
1270 o_width = 0.1;
1271 o_miter = i_style->stroke_miterlimit.value * o_width;
1272 }
1274 Path *orig = Path_for_item(item, false);
1275 if (orig == NULL) {
1276 g_free(style);
1277 curve->unref();
1278 continue;
1279 }
1281 Path *res = new Path;
1282 res->SetBackData(false);
1284 {
1285 Shape *theShape = new Shape;
1286 Shape *theRes = new Shape;
1288 orig->ConvertWithBackData(0.03);
1289 orig->Fill(theShape, 0);
1291 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1292 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1293 if (val && strcmp(val, "nonzero") == 0)
1294 {
1295 theRes->ConvertToShape(theShape, fill_nonZero);
1296 }
1297 else if (val && strcmp(val, "evenodd") == 0)
1298 {
1299 theRes->ConvertToShape(theShape, fill_oddEven);
1300 }
1301 else
1302 {
1303 theRes->ConvertToShape(theShape, fill_nonZero);
1304 }
1306 // et maintenant: offset
1307 // methode inexacte
1308 /* Path *originaux[1];
1309 originaux[0] = orig;
1310 theRes->ConvertToForme(res, 1, originaux);
1312 if (expand) {
1313 res->OutsideOutline(orig, 0.5 * o_width, o_join, o_butt, o_miter);
1314 } else {
1315 res->OutsideOutline(orig, -0.5 * o_width, o_join, o_butt, o_miter);
1316 }
1318 orig->ConvertWithBackData(1.0);
1319 orig->Fill(theShape, 0);
1320 theRes->ConvertToShape(theShape, fill_positive);
1321 originaux[0] = orig;
1322 theRes->ConvertToForme(res, 1, originaux);
1324 if (o_width >= 0.5) {
1325 // res->Coalesce(1.0);
1326 res->ConvertEvenLines(1.0);
1327 res->Simplify(1.0);
1328 } else {
1329 // res->Coalesce(o_width);
1330 res->ConvertEvenLines(1.0*o_width);
1331 res->Simplify(1.0 * o_width);
1332 } */
1333 // methode par makeoffset
1335 if (expand)
1336 {
1337 theShape->MakeOffset(theRes, o_width, o_join, o_miter);
1338 }
1339 else
1340 {
1341 theShape->MakeOffset(theRes, -o_width, o_join, o_miter);
1342 }
1343 theRes->ConvertToShape(theShape, fill_positive);
1345 res->Reset();
1346 theRes->ConvertToForme(res);
1348 if (o_width >= 1.0)
1349 {
1350 res->ConvertEvenLines(1.0);
1351 res->Simplify(1.0);
1352 }
1353 else
1354 {
1355 res->ConvertEvenLines(1.0*o_width);
1356 res->Simplify(1.0 * o_width);
1357 }
1359 delete theShape;
1360 delete theRes;
1361 }
1363 did = true;
1365 curve->unref();
1366 // remember the position of the item
1367 gint pos = SP_OBJECT_REPR(item)->position();
1368 // remember parent
1369 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1370 // remember id
1371 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1373 selection->remove(item);
1374 SP_OBJECT(item)->deleteObject(false);
1376 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
1378 gchar tstr[80];
1380 tstr[79] = '\0';
1382 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1383 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1385 repr->setAttribute("style", style);
1387 gchar *str = res->svg_dump_path();
1388 repr->setAttribute("d", str);
1389 g_free(str);
1391 // add the new repr to the parent
1392 parent->appendChild(repr);
1394 // move to the saved position
1395 repr->setPosition(pos > 0 ? pos : 0);
1397 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1399 // reapply the transform
1400 sp_item_write_transform(newitem, repr, transform);
1402 repr->setAttribute("id", id);
1404 selection->add(repr);
1406 Inkscape::GC::release(repr);
1407 }
1409 delete orig;
1410 delete res;
1411 }
1413 if (did) {
1414 sp_document_done(sp_desktop_document(desktop),
1415 (expand ? SP_VERB_SELECTION_OFFSET : SP_VERB_SELECTION_INSET),
1416 (expand ? _("Outset path") : _("Inset path")));
1417 } else {
1418 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to inset/outset in the selection."));
1419 return;
1420 }
1421 }
1424 static bool
1425 sp_selected_path_simplify_items(SPDesktop *desktop,
1426 Inkscape::Selection *selection, GSList *items,
1427 float threshold, bool justCoalesce,
1428 float angleLimit, bool breakableAngles,
1429 bool modifySelection);
1432 //return true if we changed something, else false
1433 bool
1434 sp_selected_path_simplify_item(SPDesktop *desktop,
1435 Inkscape::Selection *selection, SPItem *item,
1436 float threshold, bool justCoalesce,
1437 float angleLimit, bool breakableAngles,
1438 gdouble size, bool modifySelection)
1439 {
1440 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1441 return false;
1443 //If this is a group, do the children instead
1444 if (SP_IS_GROUP(item)) {
1445 GSList *items = sp_item_group_item_list(SP_GROUP(item));
1447 return sp_selected_path_simplify_items(desktop, selection, items,
1448 threshold, justCoalesce,
1449 angleLimit, breakableAngles,
1450 false);
1451 }
1454 SPCurve *curve = NULL;
1456 if (SP_IS_SHAPE(item)) {
1457 curve = sp_shape_get_curve(SP_SHAPE(item));
1458 if (!curve)
1459 return false;
1460 }
1462 if (SP_IS_TEXT(item)) {
1463 curve = SP_TEXT(item)->getNormalizedBpath();
1464 if (!curve)
1465 return false;
1466 }
1468 // save the transform, to re-apply it after simplification
1469 NR::Matrix const transform(item->transform);
1471 /*
1472 reset the transform, effectively transforming the item by transform.inverse();
1473 this is necessary so that the item is transformed twice back and forth,
1474 allowing all compensations to cancel out regardless of the preferences
1475 */
1476 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1478 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1479 gchar *mask = g_strdup(SP_OBJECT_REPR(item)->attribute("mask"));
1480 gchar *clip_path = g_strdup(SP_OBJECT_REPR(item)->attribute("clip-path"));
1482 Path *orig = Path_for_item(item, false);
1483 if (orig == NULL) {
1484 g_free(style);
1485 curve->unref();
1486 return false;
1487 }
1489 curve->unref();
1490 // remember the position of the item
1491 gint pos = SP_OBJECT_REPR(item)->position();
1492 // remember parent
1493 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1494 // remember id
1495 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1496 // remember path effect
1497 char const *patheffect = SP_OBJECT_REPR(item)->attribute("inkscape:path-effect");
1499 //If a group was selected, to not change the selection list
1500 if (modifySelection)
1501 selection->remove(item);
1503 SP_OBJECT(item)->deleteObject(false);
1505 if ( justCoalesce ) {
1506 orig->Coalesce(threshold * size);
1507 } else {
1508 orig->ConvertEvenLines(threshold * size);
1509 orig->Simplify(threshold * size);
1510 }
1512 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1513 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1515 // restore style, mask and clip-path
1516 repr->setAttribute("style", style);
1517 g_free(style);
1519 if ( mask ) {
1520 repr->setAttribute("mask", mask);
1521 g_free(mask);
1522 }
1524 if ( clip_path ) {
1525 repr->setAttribute("clip-path", clip_path);
1526 g_free(clip_path);
1527 }
1529 // path
1530 gchar *str = orig->svg_dump_path();
1531 if (patheffect)
1532 repr->setAttribute("inkscape:original-d", str);
1533 else
1534 repr->setAttribute("d", str);
1535 g_free(str);
1537 // restore id
1538 repr->setAttribute("id", id);
1540 // add the new repr to the parent
1541 parent->appendChild(repr);
1543 // move to the saved position
1544 repr->setPosition(pos > 0 ? pos : 0);
1546 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1548 // reapply the transform
1549 sp_item_write_transform(newitem, repr, transform);
1551 // restore path effect
1552 repr->setAttribute("inkscape:path-effect", patheffect);
1554 //If we are not in a selected group
1555 if (modifySelection)
1556 selection->add(repr);
1558 Inkscape::GC::release(repr);
1560 // clean up
1561 if (orig) delete orig;
1563 return true;
1564 }
1567 bool
1568 sp_selected_path_simplify_items(SPDesktop *desktop,
1569 Inkscape::Selection *selection, GSList *items,
1570 float threshold, bool justCoalesce,
1571 float angleLimit, bool breakableAngles,
1572 bool modifySelection)
1573 {
1574 bool simplifyIndividualPaths =
1575 (bool) prefs_get_int_attribute("options.simplifyindividualpaths", "value", 0);
1577 gchar *simplificationType;
1578 if (simplifyIndividualPaths) {
1579 simplificationType = _("Simplifying paths (separately):");
1580 } else {
1581 simplificationType = _("Simplifying paths:");
1582 }
1584 bool didSomething = false;
1586 NR::Maybe<NR::Rect> selectionBbox = selection->bounds();
1587 if (!selectionBbox) {
1588 return false;
1589 }
1590 gdouble selectionSize = L2(selectionBbox->dimensions());
1592 gdouble simplifySize = selectionSize;
1594 int pathsSimplified = 0;
1595 int totalPathCount = g_slist_length(items);
1597 // set "busy" cursor
1598 desktop->setWaitingCursor();
1600 for (; items != NULL; items = items->next) {
1601 SPItem *item = (SPItem *) items->data;
1603 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1604 continue;
1606 if (simplifyIndividualPaths) {
1607 NR::Maybe<NR::Rect> itemBbox = item->getBounds(from_2geom(sp_item_i2d_affine(item)));
1608 if (itemBbox) {
1609 simplifySize = L2(itemBbox->dimensions());
1610 } else {
1611 simplifySize = 0;
1612 }
1613 }
1615 pathsSimplified++;
1617 if (pathsSimplified % 20 == 0) {
1618 gchar *message = g_strdup_printf(_("%s <b>%d</b> of <b>%d</b> paths simplified..."), simplificationType, pathsSimplified, totalPathCount);
1619 desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, message);
1620 }
1622 didSomething |= sp_selected_path_simplify_item(desktop, selection, item,
1623 threshold, justCoalesce, angleLimit, breakableAngles, simplifySize, modifySelection);
1624 }
1626 desktop->clearWaitingCursor();
1628 if (pathsSimplified > 20) {
1629 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, g_strdup_printf(_("<b>%d</b> paths simplified."), pathsSimplified));
1630 }
1632 return didSomething;
1633 }
1635 void
1636 sp_selected_path_simplify_selection(float threshold, bool justCoalesce,
1637 float angleLimit, bool breakableAngles)
1638 {
1639 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1641 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1643 if (selection->isEmpty()) {
1644 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE,
1645 _("Select <b>path(s)</b> to simplify."));
1646 return;
1647 }
1649 GSList *items = g_slist_copy((GSList *) selection->itemList());
1651 bool didSomething = sp_selected_path_simplify_items(desktop, selection,
1652 items, threshold,
1653 justCoalesce,
1654 angleLimit,
1655 breakableAngles, true);
1657 if (didSomething)
1658 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_SIMPLIFY,
1659 _("Simplify"));
1660 else
1661 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to simplify in the selection."));
1663 }
1666 // globals for keeping track of accelerated simplify
1667 static double previousTime = 0.0;
1668 static gdouble simplifyMultiply = 1.0;
1670 void
1671 sp_selected_path_simplify(void)
1672 {
1673 gdouble simplifyThreshold =
1674 prefs_get_double_attribute("options.simplifythreshold", "value", 0.003);
1675 bool simplifyJustCoalesce =
1676 (bool) prefs_get_int_attribute("options.simplifyjustcoalesce", "value", 0);
1678 //Get the current time
1679 GTimeVal currentTimeVal;
1680 g_get_current_time(¤tTimeVal);
1681 double currentTime = currentTimeVal.tv_sec * 1000000 +
1682 currentTimeVal.tv_usec;
1684 //Was the previous call to this function recent? (<0.5 sec)
1685 if (previousTime > 0.0 && currentTime - previousTime < 500000.0) {
1687 // add to the threshold 1/2 of its original value
1688 simplifyMultiply += 0.5;
1689 simplifyThreshold *= simplifyMultiply;
1691 } else {
1692 // reset to the default
1693 simplifyMultiply = 1;
1694 }
1696 //remember time for next call
1697 previousTime = currentTime;
1699 //g_print("%g\n", simplify_threshold);
1701 //Make the actual call
1702 sp_selected_path_simplify_selection(simplifyThreshold,
1703 simplifyJustCoalesce, 0.0, false);
1704 }
1708 // fonctions utilitaires
1710 bool
1711 Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who)
1712 {
1713 if (who == NULL || a == NULL)
1714 return false;
1715 if (who == a)
1716 return true;
1717 return Ancetre(sp_repr_parent(a), who);
1718 }
1720 Path *
1721 Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
1722 {
1723 SPCurve *curve = curve_for_item(item);
1724 NArtBpath *bpath = bpath_for_curve(item, curve, doTransformation, transformFull);
1726 if (bpath == NULL) {
1727 return NULL;
1728 }
1730 Path *dest = bpath_to_Path(bpath);
1732 g_free(bpath);
1734 curve->unref();
1736 return dest;
1737 }
1739 /*
1740 * This function always returns a new NArtBpath, the caller must g_free the returned path!
1741 */
1742 NArtBpath *
1743 bpath_for_curve(SPItem *item, SPCurve *curve, bool doTransformation, bool transformFull)
1744 {
1745 if (curve == NULL)
1746 return NULL;
1748 NArtBpath const *bpath = SP_CURVE_BPATH(curve);
1749 if (bpath == NULL) {
1750 return NULL;
1751 }
1753 NArtBpath *new_bpath; // we will get a duplicate which has to be freed at some point!
1754 if (doTransformation) {
1755 if (transformFull) {
1756 new_bpath = nr_artpath_affine(bpath, from_2geom(sp_item_i2doc_affine(item)));
1757 } else {
1758 new_bpath = nr_artpath_affine(bpath, item->transform);
1759 }
1760 } else {
1761 new_bpath = nr_artpath_affine(bpath, NR::identity());
1762 }
1764 return new_bpath;
1765 }
1767 SPCurve* curve_for_item(SPItem *item)
1768 {
1769 if (!item)
1770 return NULL;
1772 SPCurve *curve = NULL;
1774 if (SP_IS_SHAPE(item)) {
1775 if (SP_IS_PATH(item)) {
1776 curve = sp_path_get_curve_for_edit(SP_PATH(item));
1777 } else {
1778 curve = sp_shape_get_curve(SP_SHAPE(item));
1779 }
1780 }
1781 else if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item))
1782 {
1783 curve = te_get_layout(item)->convertToCurves();
1784 }
1785 else if (SP_IS_IMAGE(item))
1786 {
1787 curve = sp_image_get_curve(SP_IMAGE(item));
1788 }
1790 return curve; // do not forget to unref the curve at some point!
1791 }
1793 Path *bpath_to_Path(NArtBpath const *bpath) {
1794 Path *dest = new Path;
1795 dest->SetBackData(false);
1796 {
1797 int i;
1798 bool closed = false;
1799 float lastX = 0.0;
1800 float lastY = 0.0;
1802 for (i = 0; bpath[i].code != NR_END; i++) {
1803 switch (bpath[i].code) {
1804 case NR_LINETO:
1805 lastX = bpath[i].x3;
1806 lastY = bpath[i].y3;
1807 {
1808 NR::Point tmp(lastX, lastY);
1809 dest->LineTo(tmp);
1810 }
1811 break;
1813 case NR_CURVETO:
1814 {
1815 NR::Point tmp, tms, tme;
1816 tmp[0]=bpath[i].x3;
1817 tmp[1]=bpath[i].y3;
1818 tms[0]=3 * (bpath[i].x1 - lastX);
1819 tms[1]=3 * (bpath[i].y1 - lastY);
1820 tme[0]=3 * (bpath[i].x3 - bpath[i].x2);
1821 tme[1]=3 * (bpath[i].y3 - bpath[i].y2);
1822 dest->CubicTo(tmp,tms,tme);
1823 }
1824 lastX = bpath[i].x3;
1825 lastY = bpath[i].y3;
1826 break;
1828 case NR_MOVETO_OPEN:
1829 case NR_MOVETO:
1830 if (closed)
1831 dest->Close();
1832 closed = (bpath[i].code == NR_MOVETO);
1833 lastX = bpath[i].x3;
1834 lastY = bpath[i].y3;
1835 {
1836 NR::Point tmp(lastX, lastY);
1837 dest->MoveTo(tmp);
1838 }
1839 break;
1840 default:
1841 break;
1842 }
1843 }
1844 if (closed)
1845 dest->Close();
1846 }
1847 return dest;
1848 }
1850 NR::Maybe<Path::cut_position> get_nearest_position_on_Path(Path *path, NR::Point p, unsigned seg)
1851 {
1852 //get nearest position on path
1853 Path::cut_position pos = path->PointToCurvilignPosition(p, seg);
1854 return pos;
1855 }
1857 NR::Point get_point_on_Path(Path *path, int piece, double t)
1858 {
1859 NR::Point p;
1860 path->PointAt(piece, t, p);
1861 return p;
1862 }
1865 /*
1866 Local Variables:
1867 mode:c++
1868 c-file-style:"stroustrup"
1869 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1870 indent-tabs-mode:nil
1871 fill-column:99
1872 End:
1873 */
1874 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :