void SPLPEItem::addPathEffect(gchar *value, bool reset)
{
if (value) {
// Apply the path effects here because in the casse of a group, lpe->resetDefaults
// needs that all the subitems have their effects applied
sp_lpe_item_update_patheffect(this, false, true);
// Disable the path effects while preparing the new lpe
sp_lpe_item_enable_path_effects(this, false);
// Add the new reference to the list of LPE references
HRefList hreflist;
for (PathEffectList::const_iterator it = this->path_effect_list->begin(); it != this->path_effect_list->end(); ++it)
{
hreflist.push_back( std::string((*it)->lpeobject_href) );
}
hreflist.push_back( std::string(value) );
std::string hrefs = hreflist_write_svg(hreflist);
this->getRepr()->setAttribute("inkscape:path-effect", hrefs.c_str());
// Make sure that ellipse is stored as <svg:path>
if( SP_IS_GENERICELLIPSE(this)) {
SP_GENERICELLIPSE(this)->write( this->getRepr()->document(), this->getRepr(), SP_OBJECT_WRITE_EXT );
}
// make sure there is an original-d for paths!!!
sp_lpe_item_create_original_path_recursive(this);
LivePathEffectObject *lpeobj = this->path_effect_list->back()->lpeobject;
if (lpeobj && lpeobj->get_lpe()) {
Inkscape::LivePathEffect::Effect *lpe = lpeobj->get_lpe();
// Ask the path effect to reset itself if it doesn't have parameters yet
if (reset) {
// has to be called when all the subitems have their lpes applied
lpe->resetDefaults(this);
}
// perform this once when the effect is applied
lpe->doOnApply(this);
// indicate that all necessary preparations are done and the effect can be performed
lpe->setReady();
}
//Enable the path effects now that everything is ready to apply the new path effect
sp_lpe_item_enable_path_effects(this, true);
// Apply the path effect
sp_lpe_item_update_patheffect(this, true, true);
//fix bug 1219324
if (SP_ACTIVE_DESKTOP ) {
Inkscape::UI::Tools::ToolBase *ec = SP_ACTIVE_DESKTOP->event_context;
if (INK_IS_NODE_TOOL(ec)) {
tools_switch(SP_ACTIVE_DESKTOP, TOOLS_LPETOOL); //mhh
tools_switch(SP_ACTIVE_DESKTOP, TOOLS_NODES);
}
}
}
}
static void
sp_group_update_patheffect (SPLPEItem *lpeitem, bool write)
{
#ifdef GROUP_VERBOSE
g_message("sp_group_update_patheffect: %p\n", lpeitem);
#endif
g_return_if_fail (lpeitem != NULL);
g_return_if_fail (SP_IS_GROUP (lpeitem));
GSList const *item_list = sp_item_group_item_list(SP_GROUP(lpeitem));
for ( GSList const *iter = item_list; iter; iter = iter->next ) {
SPObject *subitem = static_cast<SPObject *>(iter->data);
if (SP_IS_LPE_ITEM(subitem)) {
if (SP_LPE_ITEM_CLASS (G_OBJECT_GET_CLASS (subitem))->update_patheffect) {
SP_LPE_ITEM_CLASS (G_OBJECT_GET_CLASS (subitem))->update_patheffect (SP_LPE_ITEM(subitem), write);
}
}
}
if (sp_lpe_item_has_path_effect(lpeitem) && sp_lpe_item_path_effects_enabled(lpeitem)) {
for (PathEffectList::iterator it = lpeitem->path_effect_list->begin(); it != lpeitem->path_effect_list->end(); it++)
{
LivePathEffectObject *lpeobj = (*it)->lpeobject;
if (lpeobj && lpeobj->get_lpe()) {
lpeobj->get_lpe()->doBeforeEffect(lpeitem);
}
}
sp_group_perform_patheffect(SP_GROUP(lpeitem), SP_GROUP(lpeitem), write);
}
}
static gchar *
sp_path_description(SPItem * item)
{
int count = SP_PATH(item)->nodesInPath();
if (SP_IS_LPE_ITEM(item) && sp_lpe_item_has_path_effect(SP_LPE_ITEM(item))) {
Glib::ustring s;
PathEffectList effect_list = sp_lpe_item_get_effect_list(SP_LPE_ITEM(item));
for (PathEffectList::iterator it = effect_list.begin(); it != effect_list.end(); ++it)
{
LivePathEffectObject *lpeobj = (*it)->lpeobject;
if (!lpeobj || !lpeobj->get_lpe())
break;
if (s.empty())
s = lpeobj->get_lpe()->getName();
else
s = s + ", " + lpeobj->get_lpe()->getName();
}
return g_strdup_printf(ngettext("<b>Path</b> (%i node, path effect: %s)",
"<b>Path</b> (%i nodes, path effect: %s)",count), count, s.c_str());
} else {
return g_strdup_printf(ngettext("<b>Path</b> (%i node)",
"<b>Path</b> (%i nodes)",count), count);
}
}
static void sp_simplify_flatten(GtkWidget * /*widget*/, GObject *obj)
{
SPDesktop *desktop = static_cast<SPDesktop *>(g_object_get_data(obj, "desktop"));
std::vector<SPItem *> selected = desktop->getSelection()->itemList();
for (std::vector<SPItem *>::iterator it(selected.begin()); it != selected.end(); ++it){
SPLPEItem* lpeitem = dynamic_cast<SPLPEItem*>(*it);
if (lpeitem && lpeitem->hasPathEffect()){
PathEffectList lpelist = lpeitem->getEffectList();
std::list<Inkscape::LivePathEffect::LPEObjectReference *>::iterator i;
for (i = lpelist.begin(); i != lpelist.end(); ++i) {
LivePathEffectObject *lpeobj = (*i)->lpeobject;
if (lpeobj) {
Inkscape::LivePathEffect::Effect *lpe = lpeobj->get_lpe();
if (dynamic_cast<Inkscape::LivePathEffect::LPESimplify *>(lpe)) {
SPShape * shape = dynamic_cast<SPShape *>(lpeitem);
if(shape){
SPCurve * c = shape->getCurveBeforeLPE();
lpe->doEffect(c);
lpeitem->setCurrentPathEffect(*i);
if (lpelist.size() > 1){
lpeitem->removeCurrentPathEffect(true);
shape->setCurveBeforeLPE(c);
} else {
lpeitem->removeCurrentPathEffect(false);
shape->setCurve(c,0);
}
break;
}
}
}
}
}
}
}
Inkscape::LivePathEffect::Effect*
SPLPEItem::getPathEffectOfType(int type)
{
std::list<Inkscape::LivePathEffect::LPEObjectReference *>::iterator i;
for (i = path_effect_list->begin(); i != path_effect_list->end(); ++i) {
LivePathEffectObject *lpeobj = (*i)->lpeobject;
if (lpeobj) {
Inkscape::LivePathEffect::Effect* lpe = lpeobj->get_lpe();
if (lpe && (lpe->effectType() == type)) {
return lpe;
}
}
}
return NULL;
}
bool SPLPEItem::hasPathEffect() const
{
if (path_effect_list->empty()) {
return false;
}
// go through the list; if some are unknown or invalid, we are not an LPE item!
for (PathEffectList::const_iterator it = path_effect_list->begin(); it != path_effect_list->end(); ++it)
{
LivePathEffectObject *lpeobj = (*it)->lpeobject;
if (!lpeobj || !lpeobj->get_lpe()) {
return false;
}
}
return true;
}
/**
* returns true when LPE was successful.
*/
bool SPLPEItem::performPathEffect(SPCurve *curve) {
if (!this) {
return false;
}
if (!curve) {
return false;
}
if (this->hasPathEffect() && this->pathEffectsEnabled()) {
for (PathEffectList::iterator it = this->path_effect_list->begin(); it != this->path_effect_list->end(); ++it)
{
LivePathEffectObject *lpeobj = (*it)->lpeobject;
if (!lpeobj) {
/** \todo Investigate the cause of this.
* For example, this happens when copy pasting an object with LPE applied. Probably because the object is pasted while the effect is not yet pasted to defs, and cannot be found.
*/
g_warning("SPLPEItem::performPathEffect - NULL lpeobj in list!");
return false;
}
Inkscape::LivePathEffect::Effect *lpe = lpeobj->get_lpe();
if (!lpe) {
/** \todo Investigate the cause of this.
* Not sure, but I think this can happen when an unknown effect type is specified...
*/
g_warning("SPLPEItem::performPathEffect - lpeobj with invalid lpe in the stack!");
return false;
}
if (lpe->isVisible()) {
if (lpe->acceptsNumClicks() > 0 && !lpe->isReady()) {
// if the effect expects mouse input before being applied and the input is not finished
// yet, we don't alter the path
return false;
}
// Groups have their doBeforeEffect called elsewhere
if (!SP_IS_GROUP(this)) {
lpe->doBeforeEffect_impl(this);
}
try {
lpe->doEffect(curve);
}
catch (std::exception & e) {
g_warning("Exception during LPE %s execution. \n %s", lpe->getName().c_str(), e.what());
if (SP_ACTIVE_DESKTOP && SP_ACTIVE_DESKTOP->messageStack()) {
SP_ACTIVE_DESKTOP->messageStack()->flash( Inkscape::WARNING_MESSAGE,
_("An exception occurred during execution of the Path Effect.") );
}
return false;
}
if (!SP_IS_GROUP(this)) {
lpe->doAfterEffect(this);
}
}
}
}
return true;
}