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>
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 }
601 static
602 void sp_selected_path_outline_add_marker( SPObject *marker_object, Geom::Matrix marker_transform, NR::scale stroke_scale, NR::Matrix transform,
603 Inkscape::XML::Node *g_repr, Inkscape::XML::Document *xml_doc, SPDocument * doc )
604 {
605 SPMarker* marker = SP_MARKER (marker_object);
606 SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (marker_object));
608 NR::Matrix tr(from_2geom(marker_transform));
610 if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
611 tr = stroke_scale * tr;
612 }
614 // total marker transform
615 tr = marker_item->transform * marker->c2p * tr * transform;
617 if (SP_OBJECT_REPR(marker_item)) {
618 Inkscape::XML::Node *m_repr = SP_OBJECT_REPR(marker_item)->duplicate(xml_doc);
619 g_repr->appendChild(m_repr);
620 SPItem *marker_item = (SPItem *) doc->getObjectByRepr(m_repr);
621 sp_item_write_transform(marker_item, m_repr, tr);
622 }
623 }
625 void
626 sp_selected_path_outline()
627 {
628 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
630 Inkscape::Selection *selection = sp_desktop_selection(desktop);
632 if (selection->isEmpty()) {
633 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>stroked path(s)</b> to convert stroke to path."));
634 return;
635 }
637 bool did = false;
639 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
640 items != NULL;
641 items = items->next) {
643 SPItem *item = (SPItem *) items->data;
645 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
646 continue;
648 SPCurve *curve = NULL;
649 if (SP_IS_SHAPE(item)) {
650 curve = sp_shape_get_curve(SP_SHAPE(item));
651 if (curve == NULL)
652 continue;
653 }
654 if (SP_IS_TEXT(item)) {
655 curve = SP_TEXT(item)->getNormalizedBpath();
656 if (curve == NULL)
657 continue;
658 }
660 { // pas de stroke pas de chocolat
661 SPCSSAttr *css = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
662 gchar const *val = sp_repr_css_property(css, "stroke", NULL);
664 if (val == NULL || strcmp(val, "none") == 0) {
665 curve->unref();
666 continue;
667 }
668 }
670 // remember old stroke style, to be set on fill
671 SPCSSAttr *ncss;
672 {
673 SPCSSAttr *ocss = sp_repr_css_attr_inherited(SP_OBJECT_REPR(item), "style");
674 gchar const *val = sp_repr_css_property(ocss, "stroke", NULL);
675 gchar const *opac = sp_repr_css_property(ocss, "stroke-opacity", NULL);
677 ncss = sp_repr_css_attr_new();
679 sp_repr_css_set_property(ncss, "stroke", "none");
680 sp_repr_css_set_property(ncss, "stroke-opacity", "1.0");
681 sp_repr_css_set_property(ncss, "fill", val);
682 if ( opac ) {
683 sp_repr_css_set_property(ncss, "fill-opacity", opac);
684 } else {
685 sp_repr_css_set_property(ncss, "fill-opacity", "1.0");
686 }
687 sp_repr_css_unset_property(ncss, "marker-start");
688 sp_repr_css_unset_property(ncss, "marker-mid");
689 sp_repr_css_unset_property(ncss, "marker-end");
690 }
692 NR::Matrix const transform(item->transform);
693 float const scale = NR::expansion(transform);
694 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
695 SPStyle *i_style = SP_OBJECT(item)->style;
696 gchar const *mask = SP_OBJECT_REPR(item)->attribute("mask");
697 gchar const *clip_path = SP_OBJECT_REPR(item)->attribute("clip-path");
699 float o_width, o_miter;
700 JoinType o_join;
701 ButtType o_butt;
703 {
704 int jointype, captype;
706 jointype = i_style->stroke_linejoin.computed;
707 captype = i_style->stroke_linecap.computed;
708 o_width = i_style->stroke_width.computed;
710 switch (jointype) {
711 case SP_STROKE_LINEJOIN_MITER:
712 o_join = join_pointy;
713 break;
714 case SP_STROKE_LINEJOIN_ROUND:
715 o_join = join_round;
716 break;
717 default:
718 o_join = join_straight;
719 break;
720 }
722 switch (captype) {
723 case SP_STROKE_LINECAP_SQUARE:
724 o_butt = butt_square;
725 break;
726 case SP_STROKE_LINECAP_ROUND:
727 o_butt = butt_round;
728 break;
729 default:
730 o_butt = butt_straight;
731 break;
732 }
734 if (o_width < 0.1)
735 o_width = 0.1;
736 o_miter = i_style->stroke_miterlimit.value * o_width;
737 }
739 Path *orig = Path_for_item(item, false);
740 if (orig == NULL) {
741 g_free(style);
742 curve->unref();
743 continue;
744 }
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 g_free(style);
801 continue;
802 }
804 did = true;
806 // remember the position of the item
807 gint pos = SP_OBJECT_REPR(item)->position();
808 // remember parent
809 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
810 // remember id
811 char const *id = SP_OBJECT_REPR(item)->attribute("id");
813 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
815 SPDocument * doc = sp_desktop_document(desktop);
816 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
817 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
819 // restore old style
820 repr->setAttribute("style", style);
822 // set old stroke style on fill
823 sp_repr_css_change(repr, ncss, "style");
825 sp_repr_css_attr_unref(ncss);
827 gchar *str = orig->svg_dump_path();
828 repr->setAttribute("d", str);
829 g_free(str);
831 if (mask)
832 repr->setAttribute("mask", mask);
833 if (clip_path)
834 repr->setAttribute("clip-path", clip_path);
836 if (SP_IS_SHAPE(item) && sp_shape_has_markers (SP_SHAPE(item))) {
838 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
839 Inkscape::XML::Node *g_repr = xml_doc->createElement("svg:g");
841 // add the group to the parent
842 parent->appendChild(g_repr);
843 // move to the saved position
844 g_repr->setPosition(pos > 0 ? pos : 0);
846 g_repr->appendChild(repr);
847 repr->setAttribute("id", id);
848 SPItem *newitem = (SPItem *) doc->getObjectByRepr(repr);
849 sp_item_write_transform(newitem, repr, transform);
851 SPShape *shape = SP_SHAPE(item);
853 Geom::PathVector const & pathv = curve->get_pathvector();
854 for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
855 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_START] ) {
856 Geom::Matrix const m (sp_shape_marker_get_transform_at_start(path_it->front()));
857 sp_selected_path_outline_add_marker( marker_obj, m,
858 NR::scale(i_style->stroke_width.computed), transform,
859 g_repr, xml_doc, doc );
860 }
862 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_MID] ) {
863 Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
864 Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
865 while (curve_it2 != path_it->end_default())
866 {
867 /* Put marker between curve_it1 and curve_it2.
868 * Loop to end_default (so including closing segment), because when a path is closed,
869 * there should be a midpoint marker between last segment and closing straight line segment
870 */
871 Geom::Matrix const m (sp_shape_marker_get_transform(*curve_it1, *curve_it2));
872 sp_selected_path_outline_add_marker( marker_obj, m,
873 NR::scale(i_style->stroke_width.computed), transform,
874 g_repr, xml_doc, doc );
876 ++curve_it1;
877 ++curve_it2;
878 }
879 }
881 if ( SPObject *marker_obj = shape->marker[SP_MARKER_LOC_END] ) {
882 Geom::Matrix const m (sp_shape_marker_get_transform_at_end(path_it->back_default()));
883 sp_selected_path_outline_add_marker( marker_obj, m,
884 NR::scale(i_style->stroke_width.computed), transform,
885 g_repr, xml_doc, doc );
886 }
887 }
889 selection->add(g_repr);
891 Inkscape::GC::release(g_repr);
894 } else {
896 // add the new repr to the parent
897 parent->appendChild(repr);
899 // move to the saved position
900 repr->setPosition(pos > 0 ? pos : 0);
902 repr->setAttribute("id", id);
904 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
905 sp_item_write_transform(newitem, repr, transform);
907 selection->add(repr);
909 }
911 Inkscape::GC::release(repr);
913 curve->unref();
914 selection->remove(item);
915 SP_OBJECT(item)->deleteObject(false);
917 }
919 delete res;
920 delete orig;
921 g_free(style);
923 }
925 if (did) {
926 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_OUTLINE,
927 _("Convert stroke to path"));
928 } else {
929 // TRANSLATORS: "to outline" means "to convert stroke to path"
930 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No stroked paths</b> in the selection."));
931 return;
932 }
933 }
936 void
937 sp_selected_path_offset()
938 {
939 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
941 sp_selected_path_do_offset(true, prefOffset);
942 }
943 void
944 sp_selected_path_inset()
945 {
946 double prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", 1.0);
948 sp_selected_path_do_offset(false, prefOffset);
949 }
951 void
952 sp_selected_path_offset_screen(double pixels)
953 {
954 sp_selected_path_do_offset(true, pixels / SP_ACTIVE_DESKTOP->current_zoom());
955 }
957 void
958 sp_selected_path_inset_screen(double pixels)
959 {
960 sp_selected_path_do_offset(false, pixels / SP_ACTIVE_DESKTOP->current_zoom());
961 }
964 void sp_selected_path_create_offset_object_zero()
965 {
966 sp_selected_path_create_offset_object(0, false);
967 }
969 void sp_selected_path_create_offset()
970 {
971 sp_selected_path_create_offset_object(1, false);
972 }
973 void sp_selected_path_create_inset()
974 {
975 sp_selected_path_create_offset_object(-1, false);
976 }
978 void sp_selected_path_create_updating_offset_object_zero()
979 {
980 sp_selected_path_create_offset_object(0, true);
981 }
983 void sp_selected_path_create_updating_offset()
984 {
985 sp_selected_path_create_offset_object(1, true);
986 }
987 void sp_selected_path_create_updating_inset()
988 {
989 sp_selected_path_create_offset_object(-1, true);
990 }
992 void
993 sp_selected_path_create_offset_object(int expand, bool updating)
994 {
995 Inkscape::Selection *selection;
996 Inkscape::XML::Node *repr;
997 SPItem *item;
998 SPCurve *curve;
999 gchar *style, *str;
1000 SPDesktop *desktop;
1001 float o_width, o_miter;
1002 JoinType o_join;
1003 ButtType o_butt;
1005 curve = NULL;
1007 desktop = SP_ACTIVE_DESKTOP;
1009 selection = sp_desktop_selection(desktop);
1011 item = selection->singleItem();
1013 if (item == NULL || ( !SP_IS_SHAPE(item) && !SP_IS_TEXT(item) ) ) {
1014 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("Selected object is <b>not a path</b>, cannot inset/outset."));
1015 return;
1016 }
1017 if (SP_IS_SHAPE(item))
1018 {
1019 curve = sp_shape_get_curve(SP_SHAPE(item));
1020 if (curve == NULL)
1021 return;
1022 }
1023 if (SP_IS_TEXT(item))
1024 {
1025 curve = SP_TEXT(item)->getNormalizedBpath();
1026 if (curve == NULL)
1027 return;
1028 }
1030 NR::Matrix const transform(item->transform);
1032 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1034 style = g_strdup(SP_OBJECT(item)->repr->attribute("style"));
1036 // remember the position of the item
1037 gint pos = SP_OBJECT_REPR(item)->position();
1038 // remember parent
1039 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1041 {
1042 SPStyle *i_style = SP_OBJECT(item)->style;
1043 int jointype, captype;
1045 jointype = i_style->stroke_linejoin.value;
1046 captype = i_style->stroke_linecap.value;
1047 o_width = i_style->stroke_width.computed;
1048 if (jointype == SP_STROKE_LINEJOIN_MITER)
1049 {
1050 o_join = join_pointy;
1051 }
1052 else if (jointype == SP_STROKE_LINEJOIN_ROUND)
1053 {
1054 o_join = join_round;
1055 }
1056 else
1057 {
1058 o_join = join_straight;
1059 }
1060 if (captype == SP_STROKE_LINECAP_SQUARE)
1061 {
1062 o_butt = butt_square;
1063 }
1064 else if (captype == SP_STROKE_LINECAP_ROUND)
1065 {
1066 o_butt = butt_round;
1067 }
1068 else
1069 {
1070 o_butt = butt_straight;
1071 }
1073 {
1074 double prefOffset = 1.0;
1075 prefOffset = prefs_get_double_attribute("options.defaultoffsetwidth", "value", prefOffset);
1076 o_width = prefOffset;
1077 }
1079 if (o_width < 0.01)
1080 o_width = 0.01;
1081 o_miter = i_style->stroke_miterlimit.value * o_width;
1082 }
1084 Path *orig = Path_for_item(item, true, false);
1085 if (orig == NULL)
1086 {
1087 g_free(style);
1088 curve->unref();
1089 return;
1090 }
1092 Path *res = new Path;
1093 res->SetBackData(false);
1095 {
1096 Shape *theShape = new Shape;
1097 Shape *theRes = new Shape;
1099 orig->ConvertWithBackData(1.0);
1100 orig->Fill(theShape, 0);
1102 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1103 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1104 if (val && strcmp(val, "nonzero") == 0)
1105 {
1106 theRes->ConvertToShape(theShape, fill_nonZero);
1107 }
1108 else if (val && strcmp(val, "evenodd") == 0)
1109 {
1110 theRes->ConvertToShape(theShape, fill_oddEven);
1111 }
1112 else
1113 {
1114 theRes->ConvertToShape(theShape, fill_nonZero);
1115 }
1117 Path *originaux[1];
1118 originaux[0] = orig;
1119 theRes->ConvertToForme(res, 1, originaux);
1121 delete theShape;
1122 delete theRes;
1123 }
1125 curve->unref();
1127 if (res->descr_cmd.size() <= 1)
1128 {
1129 // pas vraiment de points sur le resultat
1130 // donc il ne reste rien
1131 sp_document_done(sp_desktop_document(desktop),
1132 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1133 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1134 (updating ? _("Create linked offset")
1135 : _("Create dynamic offset")));
1136 selection->clear();
1138 delete res;
1139 delete orig;
1140 g_free(style);
1141 return;
1142 }
1144 {
1145 gchar tstr[80];
1147 tstr[79] = '\0';
1149 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1150 repr = xml_doc->createElement("svg:path");
1151 repr->setAttribute("sodipodi:type", "inkscape:offset");
1152 sp_repr_set_svg_double(repr, "inkscape:radius", ( expand > 0
1153 ? o_width
1154 : expand < 0
1155 ? -o_width
1156 : 0 ));
1158 str = res->svg_dump_path();
1159 repr->setAttribute("inkscape:original", str);
1160 g_free(str);
1162 if ( updating ) {
1163 char const *id = SP_OBJECT(item)->repr->attribute("id");
1164 char const *uri = g_strdup_printf("#%s", id);
1165 repr->setAttribute("xlink:href", uri);
1166 g_free((void *) uri);
1167 } else {
1168 repr->setAttribute("inkscape:href", NULL);
1169 }
1171 repr->setAttribute("style", style);
1173 // add the new repr to the parent
1174 parent->appendChild(repr);
1176 // move to the saved position
1177 repr->setPosition(pos > 0 ? pos : 0);
1179 SPItem *nitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1181 if ( updating ) {
1182 // on conserve l'original
1183 // we reapply the transform to the original (offset will feel it)
1184 sp_item_write_transform(item, SP_OBJECT_REPR(item), transform);
1185 } else {
1186 // delete original, apply the transform to the offset
1187 SP_OBJECT(item)->deleteObject(false);
1188 sp_item_write_transform(nitem, repr, transform);
1189 }
1191 // The object just created from a temporary repr is only a seed.
1192 // We need to invoke its write which will update its real repr (in particular adding d=)
1193 SP_OBJECT(nitem)->updateRepr();
1195 Inkscape::GC::release(repr);
1197 selection->set(nitem);
1198 }
1200 sp_document_done(sp_desktop_document(desktop),
1201 (updating ? SP_VERB_SELECTION_LINKED_OFFSET
1202 : SP_VERB_SELECTION_DYNAMIC_OFFSET),
1203 (updating ? _("Create linked offset")
1204 : _("Create dynamic offset")));
1206 delete res;
1207 delete orig;
1209 g_free(style);
1210 }
1223 void
1224 sp_selected_path_do_offset(bool expand, double prefOffset)
1225 {
1226 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1228 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1230 if (selection->isEmpty()) {
1231 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Select <b>path(s)</b> to inset/outset."));
1232 return;
1233 }
1235 bool did = false;
1237 for (GSList *items = g_slist_copy((GSList *) selection->itemList());
1238 items != NULL;
1239 items = items->next) {
1241 SPItem *item = (SPItem *) items->data;
1243 if (!SP_IS_SHAPE(item) && !SP_IS_TEXT(item))
1244 continue;
1246 SPCurve *curve = NULL;
1247 if (SP_IS_SHAPE(item)) {
1248 curve = sp_shape_get_curve(SP_SHAPE(item));
1249 if (curve == NULL)
1250 continue;
1251 }
1252 if (SP_IS_TEXT(item)) {
1253 curve = SP_TEXT(item)->getNormalizedBpath();
1254 if (curve == NULL)
1255 continue;
1256 }
1258 NR::Matrix const transform(item->transform);
1260 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1262 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1264 float o_width, o_miter;
1265 JoinType o_join;
1266 ButtType o_butt;
1268 {
1269 SPStyle *i_style = SP_OBJECT(item)->style;
1270 int jointype, captype;
1272 jointype = i_style->stroke_linejoin.value;
1273 captype = i_style->stroke_linecap.value;
1274 o_width = i_style->stroke_width.computed;
1276 switch (jointype) {
1277 case SP_STROKE_LINEJOIN_MITER:
1278 o_join = join_pointy;
1279 break;
1280 case SP_STROKE_LINEJOIN_ROUND:
1281 o_join = join_round;
1282 break;
1283 default:
1284 o_join = join_straight;
1285 break;
1286 }
1288 switch (captype) {
1289 case SP_STROKE_LINECAP_SQUARE:
1290 o_butt = butt_square;
1291 break;
1292 case SP_STROKE_LINECAP_ROUND:
1293 o_butt = butt_round;
1294 break;
1295 default:
1296 o_butt = butt_straight;
1297 break;
1298 }
1300 o_width = prefOffset;
1302 if (o_width < 0.1)
1303 o_width = 0.1;
1304 o_miter = i_style->stroke_miterlimit.value * o_width;
1305 }
1307 Path *orig = Path_for_item(item, false);
1308 if (orig == NULL) {
1309 g_free(style);
1310 curve->unref();
1311 continue;
1312 }
1314 Path *res = new Path;
1315 res->SetBackData(false);
1317 {
1318 Shape *theShape = new Shape;
1319 Shape *theRes = new Shape;
1321 orig->ConvertWithBackData(0.03);
1322 orig->Fill(theShape, 0);
1324 SPCSSAttr *css = sp_repr_css_attr(SP_OBJECT_REPR(item), "style");
1325 gchar const *val = sp_repr_css_property(css, "fill-rule", NULL);
1326 if (val && strcmp(val, "nonzero") == 0)
1327 {
1328 theRes->ConvertToShape(theShape, fill_nonZero);
1329 }
1330 else if (val && strcmp(val, "evenodd") == 0)
1331 {
1332 theRes->ConvertToShape(theShape, fill_oddEven);
1333 }
1334 else
1335 {
1336 theRes->ConvertToShape(theShape, fill_nonZero);
1337 }
1339 // et maintenant: offset
1340 // methode inexacte
1341 /* Path *originaux[1];
1342 originaux[0] = orig;
1343 theRes->ConvertToForme(res, 1, originaux);
1345 if (expand) {
1346 res->OutsideOutline(orig, 0.5 * o_width, o_join, o_butt, o_miter);
1347 } else {
1348 res->OutsideOutline(orig, -0.5 * o_width, o_join, o_butt, o_miter);
1349 }
1351 orig->ConvertWithBackData(1.0);
1352 orig->Fill(theShape, 0);
1353 theRes->ConvertToShape(theShape, fill_positive);
1354 originaux[0] = orig;
1355 theRes->ConvertToForme(res, 1, originaux);
1357 if (o_width >= 0.5) {
1358 // res->Coalesce(1.0);
1359 res->ConvertEvenLines(1.0);
1360 res->Simplify(1.0);
1361 } else {
1362 // res->Coalesce(o_width);
1363 res->ConvertEvenLines(1.0*o_width);
1364 res->Simplify(1.0 * o_width);
1365 } */
1366 // methode par makeoffset
1368 if (expand)
1369 {
1370 theShape->MakeOffset(theRes, o_width, o_join, o_miter);
1371 }
1372 else
1373 {
1374 theShape->MakeOffset(theRes, -o_width, o_join, o_miter);
1375 }
1376 theRes->ConvertToShape(theShape, fill_positive);
1378 res->Reset();
1379 theRes->ConvertToForme(res);
1381 if (o_width >= 1.0)
1382 {
1383 res->ConvertEvenLines(1.0);
1384 res->Simplify(1.0);
1385 }
1386 else
1387 {
1388 res->ConvertEvenLines(1.0*o_width);
1389 res->Simplify(1.0 * o_width);
1390 }
1392 delete theShape;
1393 delete theRes;
1394 }
1396 did = true;
1398 curve->unref();
1399 // remember the position of the item
1400 gint pos = SP_OBJECT_REPR(item)->position();
1401 // remember parent
1402 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1403 // remember id
1404 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1406 selection->remove(item);
1407 SP_OBJECT(item)->deleteObject(false);
1409 if (res->descr_cmd.size() > 1) { // if there's 0 or 1 node left, drop this path altogether
1411 gchar tstr[80];
1413 tstr[79] = '\0';
1415 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1416 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1418 repr->setAttribute("style", style);
1420 gchar *str = res->svg_dump_path();
1421 repr->setAttribute("d", str);
1422 g_free(str);
1424 // add the new repr to the parent
1425 parent->appendChild(repr);
1427 // move to the saved position
1428 repr->setPosition(pos > 0 ? pos : 0);
1430 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1432 // reapply the transform
1433 sp_item_write_transform(newitem, repr, transform);
1435 repr->setAttribute("id", id);
1437 selection->add(repr);
1439 Inkscape::GC::release(repr);
1440 }
1442 delete orig;
1443 delete res;
1444 }
1446 if (did) {
1447 sp_document_done(sp_desktop_document(desktop),
1448 (expand ? SP_VERB_SELECTION_OFFSET : SP_VERB_SELECTION_INSET),
1449 (expand ? _("Outset path") : _("Inset path")));
1450 } else {
1451 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to inset/outset in the selection."));
1452 return;
1453 }
1454 }
1457 static bool
1458 sp_selected_path_simplify_items(SPDesktop *desktop,
1459 Inkscape::Selection *selection, GSList *items,
1460 float threshold, bool justCoalesce,
1461 float angleLimit, bool breakableAngles,
1462 bool modifySelection);
1465 //return true if we changed something, else false
1466 bool
1467 sp_selected_path_simplify_item(SPDesktop *desktop,
1468 Inkscape::Selection *selection, SPItem *item,
1469 float threshold, bool justCoalesce,
1470 float angleLimit, bool breakableAngles,
1471 gdouble size, bool modifySelection)
1472 {
1473 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1474 return false;
1476 //If this is a group, do the children instead
1477 if (SP_IS_GROUP(item)) {
1478 GSList *items = sp_item_group_item_list(SP_GROUP(item));
1480 return sp_selected_path_simplify_items(desktop, selection, items,
1481 threshold, justCoalesce,
1482 angleLimit, breakableAngles,
1483 false);
1484 }
1487 SPCurve *curve = NULL;
1489 if (SP_IS_SHAPE(item)) {
1490 curve = sp_shape_get_curve(SP_SHAPE(item));
1491 if (!curve)
1492 return false;
1493 }
1495 if (SP_IS_TEXT(item)) {
1496 curve = SP_TEXT(item)->getNormalizedBpath();
1497 if (!curve)
1498 return false;
1499 }
1501 // save the transform, to re-apply it after simplification
1502 NR::Matrix const transform(item->transform);
1504 /*
1505 reset the transform, effectively transforming the item by transform.inverse();
1506 this is necessary so that the item is transformed twice back and forth,
1507 allowing all compensations to cancel out regardless of the preferences
1508 */
1509 sp_item_write_transform(item, SP_OBJECT_REPR(item), NR::identity());
1511 gchar *style = g_strdup(SP_OBJECT_REPR(item)->attribute("style"));
1512 gchar *mask = g_strdup(SP_OBJECT_REPR(item)->attribute("mask"));
1513 gchar *clip_path = g_strdup(SP_OBJECT_REPR(item)->attribute("clip-path"));
1515 Path *orig = Path_for_item(item, false);
1516 if (orig == NULL) {
1517 g_free(style);
1518 curve->unref();
1519 return false;
1520 }
1522 curve->unref();
1523 // remember the position of the item
1524 gint pos = SP_OBJECT_REPR(item)->position();
1525 // remember parent
1526 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
1527 // remember id
1528 char const *id = SP_OBJECT_REPR(item)->attribute("id");
1529 // remember path effect
1530 char const *patheffect = SP_OBJECT_REPR(item)->attribute("inkscape:path-effect");
1532 //If a group was selected, to not change the selection list
1533 if (modifySelection)
1534 selection->remove(item);
1536 SP_OBJECT(item)->deleteObject(false);
1538 if ( justCoalesce ) {
1539 orig->Coalesce(threshold * size);
1540 } else {
1541 orig->ConvertEvenLines(threshold * size);
1542 orig->Simplify(threshold * size);
1543 }
1545 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
1546 Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
1548 // restore style, mask and clip-path
1549 repr->setAttribute("style", style);
1550 g_free(style);
1552 if ( mask ) {
1553 repr->setAttribute("mask", mask);
1554 g_free(mask);
1555 }
1557 if ( clip_path ) {
1558 repr->setAttribute("clip-path", clip_path);
1559 g_free(clip_path);
1560 }
1562 // path
1563 gchar *str = orig->svg_dump_path();
1564 if (patheffect)
1565 repr->setAttribute("inkscape:original-d", str);
1566 else
1567 repr->setAttribute("d", str);
1568 g_free(str);
1570 // restore id
1571 repr->setAttribute("id", id);
1573 // add the new repr to the parent
1574 parent->appendChild(repr);
1576 // move to the saved position
1577 repr->setPosition(pos > 0 ? pos : 0);
1579 SPItem *newitem = (SPItem *) sp_desktop_document(desktop)->getObjectByRepr(repr);
1581 // reapply the transform
1582 sp_item_write_transform(newitem, repr, transform);
1584 // restore path effect
1585 repr->setAttribute("inkscape:path-effect", patheffect);
1587 //If we are not in a selected group
1588 if (modifySelection)
1589 selection->add(repr);
1591 Inkscape::GC::release(repr);
1593 // clean up
1594 if (orig) delete orig;
1596 return true;
1597 }
1600 bool
1601 sp_selected_path_simplify_items(SPDesktop *desktop,
1602 Inkscape::Selection *selection, GSList *items,
1603 float threshold, bool justCoalesce,
1604 float angleLimit, bool breakableAngles,
1605 bool modifySelection)
1606 {
1607 bool simplifyIndividualPaths =
1608 (bool) prefs_get_int_attribute("options.simplifyindividualpaths", "value", 0);
1610 gchar *simplificationType;
1611 if (simplifyIndividualPaths) {
1612 simplificationType = _("Simplifying paths (separately):");
1613 } else {
1614 simplificationType = _("Simplifying paths:");
1615 }
1617 bool didSomething = false;
1619 NR::Maybe<NR::Rect> selectionBbox = selection->bounds();
1620 if (!selectionBbox) {
1621 return false;
1622 }
1623 gdouble selectionSize = L2(selectionBbox->dimensions());
1625 gdouble simplifySize = selectionSize;
1627 int pathsSimplified = 0;
1628 int totalPathCount = g_slist_length(items);
1630 // set "busy" cursor
1631 desktop->setWaitingCursor();
1633 for (; items != NULL; items = items->next) {
1634 SPItem *item = (SPItem *) items->data;
1636 if (!(SP_IS_GROUP(item) || SP_IS_SHAPE(item) || SP_IS_TEXT(item)))
1637 continue;
1639 if (simplifyIndividualPaths) {
1640 NR::Maybe<NR::Rect> itemBbox = item->getBounds(from_2geom(sp_item_i2d_affine(item)));
1641 if (itemBbox) {
1642 simplifySize = L2(itemBbox->dimensions());
1643 } else {
1644 simplifySize = 0;
1645 }
1646 }
1648 pathsSimplified++;
1650 if (pathsSimplified % 20 == 0) {
1651 gchar *message = g_strdup_printf(_("%s <b>%d</b> of <b>%d</b> paths simplified..."), simplificationType, pathsSimplified, totalPathCount);
1652 desktop->messageStack()->flash(Inkscape::IMMEDIATE_MESSAGE, message);
1653 }
1655 didSomething |= sp_selected_path_simplify_item(desktop, selection, item,
1656 threshold, justCoalesce, angleLimit, breakableAngles, simplifySize, modifySelection);
1657 }
1659 desktop->clearWaitingCursor();
1661 if (pathsSimplified > 20) {
1662 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, g_strdup_printf(_("<b>%d</b> paths simplified."), pathsSimplified));
1663 }
1665 return didSomething;
1666 }
1668 void
1669 sp_selected_path_simplify_selection(float threshold, bool justCoalesce,
1670 float angleLimit, bool breakableAngles)
1671 {
1672 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1674 Inkscape::Selection *selection = sp_desktop_selection(desktop);
1676 if (selection->isEmpty()) {
1677 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE,
1678 _("Select <b>path(s)</b> to simplify."));
1679 return;
1680 }
1682 GSList *items = g_slist_copy((GSList *) selection->itemList());
1684 bool didSomething = sp_selected_path_simplify_items(desktop, selection,
1685 items, threshold,
1686 justCoalesce,
1687 angleLimit,
1688 breakableAngles, true);
1690 if (didSomething)
1691 sp_document_done(sp_desktop_document(desktop), SP_VERB_SELECTION_SIMPLIFY,
1692 _("Simplify"));
1693 else
1694 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("<b>No paths</b> to simplify in the selection."));
1696 }
1699 // globals for keeping track of accelerated simplify
1700 static double previousTime = 0.0;
1701 static gdouble simplifyMultiply = 1.0;
1703 void
1704 sp_selected_path_simplify(void)
1705 {
1706 gdouble simplifyThreshold =
1707 prefs_get_double_attribute("options.simplifythreshold", "value", 0.003);
1708 bool simplifyJustCoalesce =
1709 (bool) prefs_get_int_attribute("options.simplifyjustcoalesce", "value", 0);
1711 //Get the current time
1712 GTimeVal currentTimeVal;
1713 g_get_current_time(¤tTimeVal);
1714 double currentTime = currentTimeVal.tv_sec * 1000000 +
1715 currentTimeVal.tv_usec;
1717 //Was the previous call to this function recent? (<0.5 sec)
1718 if (previousTime > 0.0 && currentTime - previousTime < 500000.0) {
1720 // add to the threshold 1/2 of its original value
1721 simplifyMultiply += 0.5;
1722 simplifyThreshold *= simplifyMultiply;
1724 } else {
1725 // reset to the default
1726 simplifyMultiply = 1;
1727 }
1729 //remember time for next call
1730 previousTime = currentTime;
1732 //g_print("%g\n", simplify_threshold);
1734 //Make the actual call
1735 sp_selected_path_simplify_selection(simplifyThreshold,
1736 simplifyJustCoalesce, 0.0, false);
1737 }
1741 // fonctions utilitaires
1743 bool
1744 Ancetre(Inkscape::XML::Node *a, Inkscape::XML::Node *who)
1745 {
1746 if (who == NULL || a == NULL)
1747 return false;
1748 if (who == a)
1749 return true;
1750 return Ancetre(sp_repr_parent(a), who);
1751 }
1753 Path *
1754 Path_for_item(SPItem *item, bool doTransformation, bool transformFull)
1755 {
1756 SPCurve *curve = curve_for_item(item);
1757 if (curve == NULL) {
1758 return NULL;
1759 }
1761 Geom::PathVector pathv = pathvector_for_curve(item, curve, doTransformation, transformFull);
1763 Path *dest = new Path;
1764 dest->LoadPathVector(pathv);
1766 curve->unref();
1768 return dest;
1769 }
1771 /*
1772 * This function always returns a new NArtBpath, the caller must g_free the returned path!
1773 */
1774 NArtBpath *
1775 bpath_for_curve(SPItem *item, SPCurve *curve, bool doTransformation, bool transformFull)
1776 {
1777 if (curve == NULL)
1778 return NULL;
1780 NArtBpath const *bpath = SP_CURVE_BPATH(curve);
1781 if (bpath == NULL) {
1782 return NULL;
1783 }
1785 NArtBpath *new_bpath; // we will get a duplicate which has to be freed at some point!
1786 if (doTransformation) {
1787 if (transformFull) {
1788 new_bpath = nr_artpath_affine(bpath, from_2geom(sp_item_i2doc_affine(item)));
1789 } else {
1790 new_bpath = nr_artpath_affine(bpath, item->transform);
1791 }
1792 } else {
1793 new_bpath = nr_artpath_affine(bpath, NR::identity());
1794 }
1796 return new_bpath;
1797 }
1799 /*
1800 * NOTE: Returns empty pathvector if curve == NULL
1801 * TODO: see if calling this method can be optimized. All the pathvector copying might be slow.
1802 */
1803 Geom::PathVector
1804 pathvector_for_curve(SPItem *item, SPCurve *curve, bool doTransformation, bool transformFull)
1805 {
1806 if (curve == NULL)
1807 return Geom::PathVector();
1809 if (doTransformation) {
1810 if (transformFull) {
1811 return (curve->get_pathvector()) * sp_item_i2doc_affine(item);
1812 } else {
1813 return (curve->get_pathvector()) * to_2geom(item->transform);
1814 }
1815 } else {
1816 return curve->get_pathvector();
1817 }
1818 }
1820 SPCurve* curve_for_item(SPItem *item)
1821 {
1822 if (!item)
1823 return NULL;
1825 SPCurve *curve = NULL;
1827 if (SP_IS_SHAPE(item)) {
1828 if (SP_IS_PATH(item)) {
1829 curve = sp_path_get_curve_for_edit(SP_PATH(item));
1830 } else {
1831 curve = sp_shape_get_curve(SP_SHAPE(item));
1832 }
1833 }
1834 else if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item))
1835 {
1836 curve = te_get_layout(item)->convertToCurves();
1837 }
1838 else if (SP_IS_IMAGE(item))
1839 {
1840 curve = sp_image_get_curve(SP_IMAGE(item));
1841 }
1843 return curve; // do not forget to unref the curve at some point!
1844 }
1846 Path *bpath_to_Path(NArtBpath const *bpath) {
1847 Path *dest = new Path;
1848 dest->SetBackData(false);
1849 {
1850 int i;
1851 bool closed = false;
1852 float lastX = 0.0;
1853 float lastY = 0.0;
1855 for (i = 0; bpath[i].code != NR_END; i++) {
1856 switch (bpath[i].code) {
1857 case NR_LINETO:
1858 lastX = bpath[i].x3;
1859 lastY = bpath[i].y3;
1860 {
1861 NR::Point tmp(lastX, lastY);
1862 dest->LineTo(tmp);
1863 }
1864 break;
1866 case NR_CURVETO:
1867 {
1868 NR::Point tmp, tms, tme;
1869 tmp[0]=bpath[i].x3;
1870 tmp[1]=bpath[i].y3;
1871 tms[0]=3 * (bpath[i].x1 - lastX);
1872 tms[1]=3 * (bpath[i].y1 - lastY);
1873 tme[0]=3 * (bpath[i].x3 - bpath[i].x2);
1874 tme[1]=3 * (bpath[i].y3 - bpath[i].y2);
1875 dest->CubicTo(tmp,tms,tme);
1876 }
1877 lastX = bpath[i].x3;
1878 lastY = bpath[i].y3;
1879 break;
1881 case NR_MOVETO_OPEN:
1882 case NR_MOVETO:
1883 if (closed)
1884 dest->Close();
1885 closed = (bpath[i].code == NR_MOVETO);
1886 lastX = bpath[i].x3;
1887 lastY = bpath[i].y3;
1888 {
1889 NR::Point tmp(lastX, lastY);
1890 dest->MoveTo(tmp);
1891 }
1892 break;
1893 default:
1894 break;
1895 }
1896 }
1897 if (closed)
1898 dest->Close();
1899 }
1900 return dest;
1901 }
1903 NR::Maybe<Path::cut_position> get_nearest_position_on_Path(Path *path, NR::Point p, unsigned seg)
1904 {
1905 //get nearest position on path
1906 Path::cut_position pos = path->PointToCurvilignPosition(p, seg);
1907 return pos;
1908 }
1910 NR::Point get_point_on_Path(Path *path, int piece, double t)
1911 {
1912 NR::Point p;
1913 path->PointAt(piece, t, p);
1914 return p;
1915 }
1918 /*
1919 Local Variables:
1920 mode:c++
1921 c-file-style:"stroustrup"
1922 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1923 indent-tabs-mode:nil
1924 fill-column:99
1925 End:
1926 */
1927 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :