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diff --git a/src/sp-shape.cpp b/src/sp-shape.cpp
index 3064341b66238b48b2842c7514771033183f0eb3..4bbfbc1e12fcbc728be7c8330d213942a0bcb418 100644 (file)
--- a/src/sp-shape.cpp
+++ b/src/sp-shape.cpp
#include <2geom/transforms.h>
#include <2geom/pathvector.h>
#include <2geom/path-intersection.h>
+#include <2geom/exception.h>
#include "helper/geom.h"
#include "helper/geom-nodetype.h"
// position arguments to sp_marker_show_instance, basically counts the amount of markers.
int counter[4] = {0};
+ if (!shape->curve) return;
Geom::PathVector const & pathv = shape->curve->get_pathvector();
+ if (pathv.empty()) return;
// the first vertex should get a start marker, the last an end marker, and all the others a mid marker
// see bug 456148
@@ -585,7 +588,7 @@ static void sp_shape_bbox(SPItem const *item, NRRect *bbox, Geom::Matrix const &
}
// Union with bboxes of the markers, if any
- if (sp_shape_has_markers (shape)) {
+ if (sp_shape_has_markers (shape) && !shape->curve->get_pathvector().empty()) {
/** \todo make code prettier! */
Geom::PathVector const & pathv = shape->curve->get_pathvector();
// START marker
if (!shape->curve) return;
+ Geom::PathVector const & pathv = shape->curve->get_pathvector();
+ if (pathv.empty()) return;
+
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
gint add_comments = prefs->getBool("/printing/debug/add-label-comments");
if (add_comments) {
SPStyle* style = SP_OBJECT_STYLE (item);
if (!style->fill.isNone()) {
- sp_print_fill (ctx, shape->curve->get_pathvector(), &i2d, style, &pbox, &dbox, &bbox);
+ sp_print_fill (ctx, pathv, &i2d, style, &pbox, &dbox, &bbox);
}
if (!style->stroke.isNone()) {
- sp_print_stroke (ctx, shape->curve->get_pathvector(), &i2d, style, &pbox, &dbox, &bbox);
+ sp_print_stroke (ctx, pathv, &i2d, style, &pbox, &dbox, &bbox);
}
/** \todo make code prettier */
- Geom::PathVector const & pathv = shape->curve->get_pathvector();
// START marker
for (int i = 0; i < 2; i++) { // SP_MARKER_LOC and SP_MARKER_LOC_START
if ( shape->marker[i] ) {
@@ -1208,49 +1213,55 @@ static void sp_shape_snappoints(SPItem const *item, std::vector<Inkscape::SnapCa
for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
if (snapprefs->getSnapToItemNode()) {
+ // Add the first point of the path
p.push_back(Inkscape::SnapCandidatePoint(path_it->initialPoint() * i2d, Inkscape::SNAPSOURCE_NODE_CUSP, Inkscape::SNAPTARGET_NODE_CUSP));
}
Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
- while (curve_it2 != path_it->end_closed())
+ while (curve_it1 != path_it->end_default())
{
- /* Test whether to add the node between curve_it1 and curve_it2.
- * Loop to end_closed (so always including closing segment); the last node to be added
- * is the node between the closing segment and the segment before that, regardless
- * of the path being closed or not. If the path is closed, the final point was already added by
- * adding the initial point. */
-
- Geom::NodeType nodetype = Geom::get_nodetype(*curve_it1, *curve_it2);
-
- bool c1 = snapprefs->getSnapToItemNode() && (nodetype == Geom::NODE_CUSP || nodetype == Geom::NODE_NONE);
- bool c2 = snapprefs->getSnapSmoothNodes() && (nodetype == Geom::NODE_SMOOTH || nodetype == Geom::NODE_SYMM);
-
- if (c1 || c2) {
- Inkscape::SnapSourceType sst;
- Inkscape::SnapTargetType stt;
- switch (nodetype) {
- case Geom::NODE_CUSP:
- sst = Inkscape::SNAPSOURCE_NODE_CUSP;
- stt = Inkscape::SNAPTARGET_NODE_CUSP;
- break;
- case Geom::NODE_SMOOTH:
- case Geom::NODE_SYMM:
- sst = Inkscape::SNAPSOURCE_NODE_SMOOTH;
- stt = Inkscape::SNAPTARGET_NODE_SMOOTH;
- break;
- default:
- sst = Inkscape::SNAPSOURCE_UNDEFINED;
- stt = Inkscape::SNAPTARGET_UNDEFINED;
- break;
+ // For each path: consider midpoints of line segments for snapping
+ if (snapprefs->getSnapLineMidpoints()) { // only do this when we're snapping nodes (enforces strict snapping)
+ if (Geom::LineSegment const* line_segment = dynamic_cast<Geom::LineSegment const*>(&(*curve_it1))) {
+ p.push_back(Inkscape::SnapCandidatePoint(Geom::middle_point(*line_segment) * i2d, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
}
- p.push_back(Inkscape::SnapCandidatePoint(curve_it1->finalPoint() * i2d, sst, stt));
}
- // Consider midpoints of line segments for snapping
- if (snapprefs->getSnapLineMidpoints()) { // only do this when we're snapping nodes (enforce strict snapping)
- if (Geom::LineSegment const* line_segment = dynamic_cast<Geom::LineSegment const*>(&(*curve_it1))) {
- p.push_back(Inkscape::SnapCandidatePoint(Geom::middle_point(*line_segment) * i2d, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
+ if (curve_it2 == path_it->end_default()) { // Test will only pass for the last iteration of the while loop
+ if (snapprefs->getSnapToItemNode() && !path_it->closed()) {
+ // Add the last point of the path, but only for open paths
+ // (for closed paths the first and last point will coincide)
+ p.push_back(Inkscape::SnapCandidatePoint((*curve_it1).finalPoint() * i2d, Inkscape::SNAPSOURCE_NODE_CUSP, Inkscape::SNAPTARGET_NODE_CUSP));
+ }
+ } else {
+ /* Test whether to add the node between curve_it1 and curve_it2.
+ * Loop to end_default (so only iterating through the stroked part); */
+
+ Geom::NodeType nodetype = Geom::get_nodetype(*curve_it1, *curve_it2);
+
+ bool c1 = snapprefs->getSnapToItemNode() && (nodetype == Geom::NODE_CUSP || nodetype == Geom::NODE_NONE);
+ bool c2 = snapprefs->getSnapSmoothNodes() && (nodetype == Geom::NODE_SMOOTH || nodetype == Geom::NODE_SYMM);
+
+ if (c1 || c2) {
+ Inkscape::SnapSourceType sst;
+ Inkscape::SnapTargetType stt;
+ switch (nodetype) {
+ case Geom::NODE_CUSP:
+ sst = Inkscape::SNAPSOURCE_NODE_CUSP;
+ stt = Inkscape::SNAPTARGET_NODE_CUSP;
+ break;
+ case Geom::NODE_SMOOTH:
+ case Geom::NODE_SYMM:
+ sst = Inkscape::SNAPSOURCE_NODE_SMOOTH;
+ stt = Inkscape::SNAPTARGET_NODE_SMOOTH;
+ break;
+ default:
+ sst = Inkscape::SNAPSOURCE_UNDEFINED;
+ stt = Inkscape::SNAPTARGET_UNDEFINED;
+ break;
+ }
+ p.push_back(Inkscape::SnapCandidatePoint(curve_it1->finalPoint() * i2d, sst, stt));
}
}
@@ -1262,13 +1273,19 @@ static void sp_shape_snappoints(SPItem const *item, std::vector<Inkscape::SnapCa
// (using "Method 1" as described in Inkscape::ObjectSnapper::_collectNodes())
if (snapprefs->getSnapIntersectionCS()) {
Geom::Crossings cs;
- cs = self_crossings(*path_it);
- if (cs.size() > 0) { // There might be multiple intersections...
- for (Geom::Crossings::const_iterator i = cs.begin(); i != cs.end(); i++) {
- Geom::Point p_ix = (*path_it).pointAt((*i).ta);
- p.push_back(Inkscape::SnapCandidatePoint(p_ix * i2d, Inkscape::SNAPSOURCE_PATH_INTERSECTION, Inkscape::SNAPTARGET_PATH_INTERSECTION));
+ try {
+ cs = self_crossings(*path_it);
+ if (cs.size() > 0) { // There might be multiple intersections...
+ for (Geom::Crossings::const_iterator i = cs.begin(); i != cs.end(); i++) {
+ Geom::Point p_ix = (*path_it).pointAt((*i).ta);
+ p.push_back(Inkscape::SnapCandidatePoint(p_ix * i2d, Inkscape::SNAPSOURCE_PATH_INTERSECTION, Inkscape::SNAPTARGET_PATH_INTERSECTION));
+ }
}
+ } catch (Geom::RangeError &e) {
+ // do nothing
+ // The exception could be Geom::InfiniteSolutions: then no snappoints should be added
}
+
}
}
@@ -1283,4 +1300,4 @@ static void sp_shape_snappoints(SPItem const *item, std::vector<Inkscape::SnapCa
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :