void SPObject::deleteObject(bool propagate, bool propagate_descendants)
{
sp_object_ref(this, NULL);
if (propagate) {
_delete_signal.emit(this);
}
if (propagate_descendants) {
this->_sendDeleteSignalRecursive();
}
Inkscape::XML::Node *repr = getRepr();
if (repr && repr->parent()) {
sp_repr_unparent(repr);
}
if (_successor) {
_successor->deleteObject(propagate, propagate_descendants);
}
sp_object_unref(this, NULL);
}
SPItem *SPUse::unlink() {
Inkscape::XML::Node *repr = this->getRepr();
if (!repr) {
return NULL;
}
Inkscape::XML::Node *parent = repr->parent();
SPDocument *document = this->document;
Inkscape::XML::Document *xml_doc = document->getReprDoc();
// Track the ultimate source of a chain of uses.
SPItem *orig = this->root();
if (!orig) {
return NULL;
}
// Calculate the accumulated transform, starting from the original.
Geom::Affine t = this->get_root_transform();
Inkscape::XML::Node *copy = NULL;
if (dynamic_cast<SPSymbol *>(orig)) { // make a group, copy children
copy = xml_doc->createElement("svg:g");
for (Inkscape::XML::Node *child = orig->getRepr()->firstChild() ; child != NULL; child = child->next()) {
Inkscape::XML::Node *newchild = child->duplicate(xml_doc);
copy->appendChild(newchild);
}
} else { // just copy
copy = orig->getRepr()->duplicate(xml_doc);
}
// Add the duplicate repr just after the existing one.
parent->addChild(copy, repr);
// Retrieve the SPItem of the resulting repr.
SPObject *unlinked = document->getObjectByRepr(copy);
// Merge style from the use.
unlinked->style->merge( this->style );
unlinked->style->cascade( unlinked->parent->style );
unlinked->updateRepr();
// Hold onto our SPObject and repr for now.
sp_object_ref(this, NULL);
Inkscape::GC::anchor(repr);
// Remove ourselves, not propagating delete events to avoid a
// chain-reaction with other elements that might reference us.
this->deleteObject(false);
// Give the copy our old id and let go of our old repr.
copy->setAttribute("id", repr->attribute("id"));
Inkscape::GC::release(repr);
// Remove tiled clone attrs.
copy->setAttribute("inkscape:tiled-clone-of", NULL);
copy->setAttribute("inkscape:tile-w", NULL);
copy->setAttribute("inkscape:tile-h", NULL);
copy->setAttribute("inkscape:tile-cx", NULL);
copy->setAttribute("inkscape:tile-cy", NULL);
// Establish the succession and let go of our object.
this->setSuccessor(unlinked);
sp_object_unref(this, NULL);
SPItem *item = dynamic_cast<SPItem *>(unlinked);
g_assert(item != NULL);
// Set the accummulated transform.
{
Geom::Affine nomove(Geom::identity());
// Advertise ourselves as not moving.
item->doWriteTransform(item->getRepr(), t, &nomove);
}
return item;
}
static void spdc_flush_white(FreehandBase *dc, SPCurve *gc)
{
SPCurve *c;
if (dc->white_curves) {
g_assert(dc->white_item);
c = SPCurve::concat(dc->white_curves);
g_slist_free(dc->white_curves);
dc->white_curves = NULL;
if (gc) {
c->append(gc, FALSE);
}
} else if (gc) {
c = gc;
c->ref();
} else {
return;
}
// Now we have to go back to item coordinates at last
c->transform( dc->white_item
? (dc->white_item)->dt2i_affine()
: dc->desktop->dt2doc() );
SPDesktop *desktop = dc->desktop;
SPDocument *doc = desktop->getDocument();
Inkscape::XML::Document *xml_doc = doc->getReprDoc();
if ( c && !c->is_empty() ) {
// We actually have something to write
bool has_lpe = false;
Inkscape::XML::Node *repr;
if (dc->white_item) {
repr = dc->white_item->getRepr();
has_lpe = SP_LPE_ITEM(dc->white_item)->hasPathEffectRecursive();
} else {
repr = xml_doc->createElement("svg:path");
// Set style
sp_desktop_apply_style_tool(desktop, repr, tool_name(dc).data(), false);
}
gchar *str = sp_svg_write_path( c->get_pathvector() );
g_assert( str != NULL );
if (has_lpe)
repr->setAttribute("inkscape:original-d", str);
else
repr->setAttribute("d", str);
g_free(str);
if (!dc->white_item) {
// Attach repr
SPItem *item = SP_ITEM(desktop->currentLayer()->appendChildRepr(repr));
spdc_check_for_and_apply_waiting_LPE(dc, item, c);
if(previous_shape_type != BEND_CLIPBOARD){
dc->selection->set(repr);
}
Inkscape::GC::release(repr);
item->transform = SP_ITEM(desktop->currentLayer())->i2doc_affine().inverse();
item->updateRepr();
item->doWriteTransform(item->getRepr(), item->transform, NULL, true);
if(previous_shape_type == BEND_CLIPBOARD){
repr->parent()->removeChild(repr);
}
}
DocumentUndo::done(doc, SP_IS_PEN_CONTEXT(dc)? SP_VERB_CONTEXT_PEN : SP_VERB_CONTEXT_PENCIL,
_("Draw path"));
// When quickly drawing several subpaths with Shift, the next subpath may be finished and
// flushed before the selection_modified signal is fired by the previous change, which
// results in the tool losing all of the selected path's curve except that last subpath. To
// fix this, we force the selection_modified callback now, to make sure the tool's curve is
// in sync immediately.
spdc_selection_modified(desktop->getSelection(), 0, dc);
}
c->unref();
// Flush pending updates
doc->ensureUpToDate();
}
void Tracer::traceThread()
{
//## Remember. NEVER leave this method without setting
//## engine back to NULL
//## Prepare our kill flag. We will watch this later to
//## see if the main thread wants us to stop
keepGoing = true;
SPDesktop *desktop = SP_ACTIVE_DESKTOP;
if (!desktop)
{
g_warning("Trace: No active desktop\n");
return;
}
Inkscape::MessageStack *msgStack = desktop->getMessageStack();
Inkscape::Selection *selection = desktop->getSelection();
if (!SP_ACTIVE_DOCUMENT)
{
char *msg = _("Trace: No active document");
msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
//g_warning(msg);
engine = NULL;
return;
}
SPDocument *doc = SP_ACTIVE_DOCUMENT;
doc->ensureUpToDate();
SPImage *img = getSelectedSPImage();
if (!img)
{
engine = NULL;
return;
}
GdkPixbuf *trace_pb = gdk_pixbuf_copy(img->pixbuf->getPixbufRaw(false));
if (img->pixbuf->pixelFormat() == Inkscape::Pixbuf::PF_CAIRO) {
convert_pixels_argb32_to_pixbuf(
gdk_pixbuf_get_pixels(trace_pb),
gdk_pixbuf_get_width(trace_pb),
gdk_pixbuf_get_height(trace_pb),
gdk_pixbuf_get_rowstride(trace_pb));
}
Glib::RefPtr<Gdk::Pixbuf> pixbuf = Glib::wrap(trace_pb, false);
pixbuf = sioxProcessImage(img, pixbuf);
if (!pixbuf)
{
char *msg = _("Trace: Image has no bitmap data");
msgStack->flash(Inkscape::ERROR_MESSAGE, msg);
//g_warning(msg);
engine = NULL;
return;
}
msgStack->flash(Inkscape::NORMAL_MESSAGE, _("Trace: Starting trace..."));
desktop->updateCanvasNow();
std::vector<TracingEngineResult> results =
engine->trace(pixbuf);
//printf("nrPaths:%d\n", results.size());
int nrPaths = results.size();
//### Check if we should stop
if (!keepGoing || nrPaths<1)
{
engine = NULL;
return;
}
//### Get pointers to the <image> and its parent
//XML Tree being used directly here while it shouldn't be.
Inkscape::XML::Node *imgRepr = SP_OBJECT(img)->getRepr();
Inkscape::XML::Node *par = imgRepr->parent();
//### Get some information for the new transform()
double x = 0.0;
double y = 0.0;
double width = 0.0;
double height = 0.0;
double dval = 0.0;
if (sp_repr_get_double(imgRepr, "x", &dval))
x = dval;
if (sp_repr_get_double(imgRepr, "y", &dval))
y = dval;
if (sp_repr_get_double(imgRepr, "width", &dval))
width = dval;
if (sp_repr_get_double(imgRepr, "height", &dval))
height = dval;
double iwidth = (double)pixbuf->get_width();
double iheight = (double)pixbuf->get_height();
double iwscale = width / iwidth;
double ihscale = height / iheight;
Geom::Translate trans(x, y);
Geom::Scale scal(iwscale, ihscale);
//# Convolve scale, translation, and the original transform
Geom::Affine tf(scal * trans);
tf *= img->transform;
//#OK. Now let's start making new nodes
Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
Inkscape::XML::Node *groupRepr = NULL;
//# if more than 1, make a <g>roup of <path>s
if (nrPaths > 1)
{
groupRepr = xml_doc->createElement("svg:g");
par->addChild(groupRepr, imgRepr);
}
long totalNodeCount = 0L;
for (unsigned int i=0 ; i<results.size() ; i++)
{
TracingEngineResult result = results[i];
totalNodeCount += result.getNodeCount();
Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
pathRepr->setAttribute("style", result.getStyle().c_str());
pathRepr->setAttribute("d", result.getPathData().c_str());
if (nrPaths > 1)
groupRepr->addChild(pathRepr, NULL);
else
par->addChild(pathRepr, imgRepr);
//### Apply the transform from the image to the new shape
SPObject *reprobj = doc->getObjectByRepr(pathRepr);
if (reprobj)
{
SPItem *newItem = SP_ITEM(reprobj);
newItem->doWriteTransform(pathRepr, tf, NULL);
}
if (nrPaths == 1)
{
selection->clear();
selection->add(pathRepr);
}
Inkscape::GC::release(pathRepr);
}
// If we have a group, then focus on, then forget it
if (nrPaths > 1)
{
selection->clear();
selection->add(groupRepr);
Inkscape::GC::release(groupRepr);
}
//## inform the document, so we can undo
DocumentUndo::done(doc, SP_VERB_SELECTION_TRACE, _("Trace bitmap"));
engine = NULL;
char *msg = g_strdup_printf(_("Trace: Done. %ld nodes created"), totalNodeCount);
msgStack->flash(Inkscape::NORMAL_MESSAGE, msg);
g_free(msg);
}