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index ebf0f3828c07291159a4242c376aa0a18b3ce274..7c60efbabbef193183547e4583c8d0daa0a9e626 100644 (file)
*/
/* Authors:
* Krzysztof Kosiński <tweenk.pl@gmail.com>
+ * Abhishek Sharma
*
* Copyright (C) 2009 Authors
* Released under GNU GPL, read the file 'COPYING' for more information
, _path(path)
, _spcurve(new SPCurve())
, _dragpoint(new CurveDragPoint(*this))
- , _observer(new PathManipulatorObserver(this, SP_OBJECT(path)->repr))
+ , /* XML Tree being used here directly while it shouldn't be*/_observer(new PathManipulatorObserver(this, SP_OBJECT(path)->getRepr()))
, _edit_transform(et)
, _num_selected(0)
, _show_handles(true)
, _lpe_key(lpe_key)
{
if (_lpe_key.empty()) {
- _i2d_transform = sp_item_i2d_affine(SP_ITEM(path));
+ _i2d_transform = SP_ITEM(path)->i2d_affine();
} else {
_i2d_transform = Geom::identity();
}
/** Select all nodes in subpaths that have something selected. */
void PathManipulator::selectSubpaths()
{
- for (std::list<SubpathPtr>::iterator i = _subpaths.begin(); i != _subpaths.end(); ++i) {
+ for (SubpathList::iterator i = _subpaths.begin(); i != _subpaths.end(); ++i) {
NodeList::iterator sp_start = (*i)->begin(), sp_end = (*i)->end();
for (NodeList::iterator j = sp_start; j != sp_end; ++j) {
if (j->selected()) {
}
}
-/** Move the selection forward or backward by one node in each subpath, based on the sign
- * of the parameter. */
-void PathManipulator::shiftSelection(int dir)
-{
- if (dir == 0) return;
- if (_num_selected == 0) {
- // select the first node of the path.
- SubpathList::iterator s = _subpaths.begin();
- if (s == _subpaths.end()) return;
- NodeList::iterator n = (*s)->begin();
- if (n != (*s)->end())
- _selection.insert(n.ptr());
- return;
- }
- // We cannot do any tricks here, like iterating in different directions based on
- // the sign and only setting the selection of nodes behind us, because it would break
- // for closed paths.
- for (SubpathList::iterator i = _subpaths.begin(); i != _subpaths.end(); ++i) {
- std::deque<bool> sels; // I hope this is specialized for bools!
- unsigned num = 0;
-
- for (NodeList::iterator j = (*i)->begin(); j != (*i)->end(); ++j) {
- sels.push_back(j->selected());
- _selection.erase(j.ptr());
- ++num;
- }
- if (num == 0) continue; // should never happen! zero-node subpaths are not allowed
-
- num = 0;
- // In closed subpath, shift the selection cyclically. In an open one,
- // let the selection 'slide into nothing' at ends.
- if (dir > 0) {
- if ((*i)->closed()) {
- bool last = sels.back();
- sels.pop_back();
- sels.push_front(last);
- } else {
- sels.push_front(false);
- }
- } else {
- if ((*i)->closed()) {
- bool first = sels.front();
- sels.pop_front();
- sels.push_back(first);
- } else {
- sels.push_back(false);
- num = 1;
- }
- }
-
- for (NodeList::iterator j = (*i)->begin(); j != (*i)->end(); ++j) {
- if (sels[num]) _selection.insert(j.ptr());
- ++num;
- }
- }
-}
-
/** Invert selection in the selected subpaths. */
void PathManipulator::invertSelectionInSubpaths()
{
}
}
+/** Insert new nodes exactly at the positions of selected nodes while preserving shape.
+ * This is equivalent to breaking, except that it doesn't split into subpaths. */
+void PathManipulator::duplicateNodes()
+{
+ if (_num_selected == 0) return;
+
+ for (SubpathList::iterator i = _subpaths.begin(); i != _subpaths.end(); ++i) {
+ for (NodeList::iterator j = (*i)->begin(); j != (*i)->end(); ++j) {
+ if (j->selected()) {
+ NodeList::iterator k = j.next();
+ Node *n = new Node(_multi_path_manipulator._path_data.node_data, *j);
+
+ // Move the new node to the bottom of the Z-order. This way you can drag all
+ // nodes that were selected before this operation without deselecting
+ // everything because there is a new node above.
+ n->sink();
+
+ n->front()->setPosition(*j->front());
+ j->front()->retract();
+ j->setType(NODE_CUSP, false);
+ (*i)->insert(k, n);
+
+ // We need to manually call the selection change callback to refresh
+ // the handle display correctly.
+ // This call changes num_selected, but we call this once for a selected node
+ // and once for an unselected node, so in the end the number stays correct.
+ _selectionChanged(j.ptr(), true);
+ _selectionChanged(n, false);
+ }
+ }
+ }
+}
+
/** Replace contiguous selections of nodes in each subpath with one node. */
void PathManipulator::weldNodes(NodeList::iterator preserve_pos)
{
case SEGMENT_CUBIC_BEZIER:
if (!j->front()->isDegenerate() || !k->back()->isDegenerate())
break;
+ // move both handles to 1/3 of the line
j->front()->move(j->position() + (k->position() - j->position()) / 3);
k->back()->move(k->position() + (j->position() - k->position()) / 3);
break;
length_change *= dir;
}
- Geom::Point relpos = h->relativePos();
- double rellen = relpos.length();
- h->setRelativePos(relpos * ((rellen + length_change) / rellen));
+ Geom::Point relpos;
+ if (h->isDegenerate()) {
+ if (dir < 0) return;
+ Node *nh = n->nodeToward(h);
+ if (!nh) return;
+ relpos = Geom::unit_vector(nh->position() - n->position()) * length_change;
+ } else {
+ relpos = h->relativePos();
+ double rellen = relpos.length();
+ relpos *= ((rellen + length_change) / rellen);
+ }
+ h->setRelativePos(relpos);
update();
gchar const *key = which < 0 ? "handle:scale:left" : "handle:scale:right";
n->setType(NODE_CUSP);
}
Handle *h = _chooseHandle(n, which);
- double angle;
+ if (h->isDegenerate()) return;
+ double angle;
if (pixel) {
// Rotate by "one pixel"
angle = atan2(1.0 / _desktop->current_zoom(), h->length()) * dir;
int snaps = prefs->getIntLimited("/options/rotationsnapsperpi/value", 12, 1, 1000);
angle = M_PI * dir / snaps;
}
+
h->setRelativePos(h->relativePos() * Geom::Rotate(angle));
update();
gchar const *key = which < 0 ? "handle:rotate:left" : "handle:rotate:right";
Handle *PathManipulator::_chooseHandle(Node *n, int which)
{
- Geom::Point f = n->front()->position(), b = n->back()->position();
+ NodeList::iterator i = NodeList::get_iterator(n);
+ Node *prev = i.prev().ptr();
+ Node *next = i.next().ptr();
+
+ // on an endnode, the remaining handle automatically wins
+ if (!next) return n->back();
+ if (!prev) return n->front();
+
+ // compare X coord ofline segments
+ Geom::Point npos = next->position();
+ Geom::Point ppos = prev->position();
if (which < 0) {
// pick left handle.
// we just swap the handles and pick the right handle below.
- std::swap(f, b);
+ std::swap(npos, ppos);
}
- if (f[Geom::X] >= b[Geom::X]) {
+
+ if (npos[Geom::X] >= ppos[Geom::X]) {
return n->front();
} else {
return n->back();
/** Called by the XML observer when something else than us modifies the path. */
void PathManipulator::_externalChange(unsigned type)
{
+ hideDragPoint();
+
switch (type) {
case PATH_CHANGE_D: {
_getGeometry();
} break;
case PATH_CHANGE_TRANSFORM: {
Geom::Matrix i2d_change = _d2i_transform;
- _i2d_transform = sp_item_i2d_affine(SP_ITEM(_path));
+ _i2d_transform = SP_ITEM(_path)->i2d_affine();
_d2i_transform = _i2d_transform.inverse();
i2d_change *= _i2d_transform;
for (SubpathList::iterator i = _subpaths.begin(); i != _subpaths.end(); ++i) {
// so that pickBestType works correctly
// TODO maybe migrate to inkscape:node-types?
// TODO move this into SPPath - do not manipulate directly
- gchar const *nts_raw = _path ? _path->repr->attribute(_nodetypesKey().data()) : 0;
+
+ //XML Tree being used here directly while it shouldn't be.
+ gchar const *nts_raw = _path ? _path->getRepr()->attribute(_nodetypesKey().data()) : 0;
std::string nodetype_string = nts_raw ? nts_raw : "";
/* Calculate the needed length of the nodetype string.
* For closed paths, the entry is duplicated for the starting node,
LIVEPATHEFFECT(_path)->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
} else {
- if (_path->repr->attribute("inkscape:original-d"))
+ //XML Tree being used here directly while it shouldn't be.
+ if (_path->getRepr()->attribute("inkscape:original-d"))
sp_path_set_original_curve(_path, _spcurve, false, false);
else
- sp_shape_set_curve(SP_SHAPE(_path), _spcurve, false);
+ SP_SHAPE(_path)->setCurve(_spcurve, false);
}
}
* This method is wrong but necessary at the moment. */
Inkscape::XML::Node *PathManipulator::_getXMLNode()
{
- if (_lpe_key.empty()) return _path->repr;
- return LIVEPATHEFFECT(_path)->repr;
+ //XML Tree being used here directly while it shouldn't be.
+ if (_lpe_key.empty()) return _path->getRepr();
+ //XML Tree being used here directly while it shouldn't be.
+ return LIVEPATHEFFECT(_path)->getRepr();
}
bool PathManipulator::_nodeClicked(Node *n, GdkEventButton *event)
return true;
} else if (held_control(*event)) {
// Ctrl+click: cycle between node types
- if (n->isEndNode()) {
- if (n->type() == NODE_CUSP) {
- n->setType(NODE_SMOOTH);
- } else {
- n->setType(NODE_CUSP);
- }
- } else {
+ if (!n->isEndNode()) {
n->setType(static_cast<NodeType>((n->type() + 1) % NODE_LAST_REAL_TYPE));
+ update();
+ _commit(_("Cycle node type"));
}
- update();
- _commit(_("Cycle node type"));
return true;
}
return false;
void PathManipulator::_commit(Glib::ustring const &annotation)
{
writeXML();
- sp_document_done(sp_desktop_document(_desktop), SP_VERB_CONTEXT_NODE, annotation.data());
+ DocumentUndo::done(sp_desktop_document(_desktop), SP_VERB_CONTEXT_NODE, annotation.data());
}
void PathManipulator::_commit(Glib::ustring const &annotation, gchar const *key)
{
writeXML();
- sp_document_maybe_done(sp_desktop_document(_desktop), key, SP_VERB_CONTEXT_NODE,
- annotation.data());
+ DocumentUndo::maybeDone(sp_desktop_document(_desktop), key, SP_VERB_CONTEXT_NODE,
+ annotation.data());
}
/** Update the position of the curve drag point such that it is over the nearest
NodeList::iterator first = (*spi)->before(pvp->t, &fracpart);
double stroke_tolerance = _getStrokeTolerance();
- if (Geom::distance(evp, nearest_point) < stroke_tolerance) {
+ if (first && first.next() &&
+ fracpart != 0.0 &&
+ Geom::distance(evp, nearest_point) < stroke_tolerance)
+ {
_dragpoint->setVisible(true);
_dragpoint->setPosition(_desktop->w2d(nearest_point));
_dragpoint->setSize(2 * stroke_tolerance);
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 :