diff options
Diffstat (limited to 'src/sp-tref.cpp')
| -rw-r--r-- | src/sp-tref.cpp | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/src/sp-tref.cpp b/src/sp-tref.cpp deleted file mode 100644 index dd44c5855..000000000 --- a/src/sp-tref.cpp +++ /dev/null @@ -1,532 +0,0 @@ -/** \file - * SVG <tref> implementation - All character data within the referenced - * element, including character data enclosed within additional markup, - * will be rendered. - * - * This file was created based on skeleton.cpp - */ -/* - * Authors: - * Gail Banaszkiewicz <Gail.Banaszkiewicz@gmail.com> - * Jon A. Cruz <jon@joncruz.org> - * Abhishek Sharma - * - * Copyright (C) 2007 Gail Banaszkiewicz - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -#include "sp-tref.h" - -#include <glibmm/i18n.h> - -#include "bad-uri-exception.h" -#include "attributes.h" -#include "document.h" -#include "sp-factory.h" -#include "sp-text.h" -#include "style.h" -#include "text-editing.h" - -//#define DEBUG_TREF -#ifdef DEBUG_TREF -# define debug(f, a...) { g_message("%s(%d) %s:", \ - __FILE__,__LINE__,__FUNCTION__); \ - g_message(f, ## a); \ - g_message("\n"); \ - } -#else -# define debug(f, a...) /**/ -#endif - - -static void build_string_from_root(Inkscape::XML::Node *root, Glib::ustring *retString); - -/* TRef base class */ -static void sp_tref_href_changed(SPObject *old_ref, SPObject *ref, SPTRef *tref); -static void sp_tref_delete_self(SPObject *deleted, SPTRef *self); - -SPTRef::SPTRef() : SPItem() { - this->stringChild = NULL; - - this->href = NULL; - this->uriOriginalRef = new SPTRefReference(this); - - this->_changed_connection = - this->uriOriginalRef->changedSignal().connect(sigc::bind(sigc::ptr_fun(sp_tref_href_changed), this)); -} - -SPTRef::~SPTRef() { - delete this->uriOriginalRef; -} - -void SPTRef::build(SPDocument *document, Inkscape::XML::Node *repr) { - SPItem::build(document, repr); - - this->readAttr( "xlink:href" ); - this->readAttr( "x" ); - this->readAttr( "y" ); - this->readAttr( "dx" ); - this->readAttr( "dy" ); - this->readAttr( "rotate" ); -} - -void SPTRef::release() { - //this->attributes.~TextTagAttributes(); - - this->_delete_connection.disconnect(); - this->_changed_connection.disconnect(); - - g_free(this->href); - this->href = NULL; - - this->uriOriginalRef->detach(); - - SPItem::release(); -} - -void SPTRef::set(unsigned int key, const gchar* value) { - debug("0x%p %s(%u): '%s'",this, - sp_attribute_name(key),key,value ? value : "<no value>"); - - if (this->attributes.readSingleAttribute(key, value, style, &viewport)) { // x, y, dx, dy, rotate - this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); - } else if (key == SP_ATTR_XLINK_HREF) { // xlink:href - if ( !value ) { - // No value - g_free(this->href); - this->href = NULL; - this->uriOriginalRef->detach(); - } else if ((this->href && strcmp(value, this->href) != 0) || (!this->href)) { - // Value has changed - - if ( this->href ) { - g_free(this->href); - this->href = NULL; - } - - this->href = g_strdup(value); - - try { - this->uriOriginalRef->attach(Inkscape::URI(value)); - this->uriOriginalRef->updateObserver(); - } catch ( Inkscape::BadURIException &e ) { - g_warning("%s", e.what()); - this->uriOriginalRef->detach(); - } - - // No matter what happened, an update should be in order - this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); - } - } else { // default - SPItem::set(key, value); - } -} - -void SPTRef::update(SPCtx *ctx, guint flags) { - debug("0x%p",this); - - unsigned childflags = flags; - if (flags & SP_OBJECT_MODIFIED_FLAG) { - childflags |= SP_OBJECT_PARENT_MODIFIED_FLAG; - } - childflags &= SP_OBJECT_MODIFIED_CASCADE; - - SPObject *child = this->stringChild; - - if (child) { - if ( childflags || ( child->uflags & SP_OBJECT_MODIFIED_FLAG )) { - child->updateDisplay(ctx, childflags); - } - } - - SPItem::update(ctx, flags); -} - -void SPTRef::modified(unsigned int flags) { - if (flags & SP_OBJECT_MODIFIED_FLAG) { - flags |= SP_OBJECT_PARENT_MODIFIED_FLAG; - } - - flags &= SP_OBJECT_MODIFIED_CASCADE; - - SPObject *child = this->stringChild; - - if (child) { - sp_object_ref(child); - - if (flags || (child->mflags & SP_OBJECT_MODIFIED_FLAG)) { - child->emitModified(flags); - } - - sp_object_unref(child); - } -} - -Inkscape::XML::Node* SPTRef::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) { - debug("0x%p",this); - - if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) { - repr = xml_doc->createElement("svg:tref"); - } - - this->attributes.writeTo(repr); - - if (this->uriOriginalRef->getURI()) { - gchar *uri_string = this->uriOriginalRef->getURI()->toString(); - debug("uri_string=%s", uri_string); - repr->setAttribute("xlink:href", uri_string); - g_free(uri_string); - } - - SPItem::write(xml_doc, repr, flags); - - return repr; -} - -Geom::OptRect SPTRef::bbox(Geom::Affine const &transform, SPItem::BBoxType type) const { - Geom::OptRect bbox; - // find out the ancestor text which holds our layout - SPObject const *parent_text = this; - - while ( parent_text && !SP_IS_TEXT(parent_text) ) { - parent_text = parent_text->parent; - } - - if (parent_text == NULL) { - return bbox; - } - - // get the bbox of our portion of the layout - bbox = SP_TEXT(parent_text)->layout.bounds(transform, - sp_text_get_length_upto(parent_text, this), sp_text_get_length_upto(this, NULL) - 1); - - // Add stroke width - // FIXME this code is incorrect - if (bbox && type == SPItem::VISUAL_BBOX && !this->style->stroke.isNone()) { - double scale = transform.descrim(); - bbox->expandBy(0.5 * this->style->stroke_width.computed * scale); - } - - return bbox; -} - -const char* SPTRef::displayName() const { - return _("Cloned Character Data"); -} - -gchar* SPTRef::description() const { - SPObject const *referred = this->getObjectReferredTo(); - - if (referred) { - char *child_desc; - - if (SP_IS_ITEM(referred)) { - child_desc = SP_ITEM(referred)->detailedDescription(); - } else { - child_desc = g_strdup(""); - } - - char *ret = g_strdup_printf("%s%s", - (SP_IS_ITEM(referred) ? _(" from ") : ""), child_desc); - g_free(child_desc); - - return ret; - } - - return g_strdup(_("[orphaned]")); -} - - -/* For the sigc::connection changes (i.e. when the object being referred to changes) */ -static void -sp_tref_href_changed(SPObject */*old_ref*/, SPObject */*ref*/, SPTRef *tref) -{ - if (tref) - { - // Save a pointer to the original object being referred to - SPObject *refRoot = tref->getObjectReferredTo(); - - tref->_delete_connection.disconnect(); - - if (tref->stringChild) { - tref->detach(tref->stringChild); - tref->stringChild = NULL; - } - - // Ensure that we are referring to a legitimate object - if (tref->href && refRoot && sp_tref_reference_allowed(tref, refRoot)) { - - // Update the text being referred to (will create a new string child) - sp_tref_update_text(tref); - - // Restore the delete connection now that we're done messing with stuff - tref->_delete_connection = refRoot->connectDelete(sigc::bind(sigc::ptr_fun(&sp_tref_delete_self), tref)); - } - - } -} - - -/** - * Delete the tref object - */ -static void -sp_tref_delete_self(SPObject */*deleted*/, SPTRef *self) -{ - self->deleteObject(); -} - -/** - * Return the object referred to via the URI reference - */ -SPObject * SPTRef::getObjectReferredTo(void) -{ - SPObject *referredObject = NULL; - - if (uriOriginalRef) { - referredObject = uriOriginalRef->getObject(); - } - - return referredObject; -} - -/** - * Return the object referred to via the URI reference - */ -SPObject const *SPTRef::getObjectReferredTo() const { - SPObject *referredObject = NULL; - - if (uriOriginalRef) { - referredObject = uriOriginalRef->getObject(); - } - - return referredObject; -} - - -/** - * Returns true when the given tref is allowed to refer to a particular object - */ -bool -sp_tref_reference_allowed(SPTRef *tref, SPObject *possible_ref) -{ - bool allowed = false; - - if (tref && possible_ref) { - if (tref != possible_ref) { - bool ancestor = false; - for (SPObject *obj = tref; obj; obj = obj->parent) { - if (possible_ref == obj) { - ancestor = true; - break; - } - } - allowed = !ancestor; - } - } - - return allowed; -} - - -/** - * Returns true if a tref is fully contained in the confines of the given - * iterators and layout (or if there is no tref). - */ -bool -sp_tref_fully_contained(SPObject *start_item, Glib::ustring::iterator &start, - SPObject *end_item, Glib::ustring::iterator &end) -{ - bool fully_contained = false; - - if (start_item && end_item) { - - // If neither the beginning or the end is a tref then we return true (whether there - // is a tref in the innards or not, because if there is one then it must be totally - // contained) - if (!(SP_IS_STRING(start_item) && SP_IS_TREF(start_item->parent)) - && !(SP_IS_STRING(end_item) && SP_IS_TREF(end_item->parent))) { - fully_contained = true; - } - - // Both the beginning and end are trefs; but in this case, the string iterators - // must be at the right places - else if ((SP_IS_STRING(start_item) && SP_IS_TREF(start_item->parent)) - && (SP_IS_STRING(end_item) && SP_IS_TREF(end_item->parent))) { - if (start == SP_STRING(start_item)->string.begin() - && end == SP_STRING(start_item)->string.end()) { - fully_contained = true; - } - } - - // If the beginning is a string that is a child of a tref, the iterator has to be - // at the beginning of the item - else if ((SP_IS_STRING(start_item) && SP_IS_TREF(start_item->parent)) - && !(SP_IS_STRING(end_item) && SP_IS_TREF(end_item->parent))) { - if (start == SP_STRING(start_item)->string.begin()) { - fully_contained = true; - } - } - - // Same, but the for the end - else if (!(SP_IS_STRING(start_item) && SP_IS_TREF(start_item->parent)) - && (SP_IS_STRING(end_item) && SP_IS_TREF(end_item->parent))) { - if (end == SP_STRING(start_item)->string.end()) { - fully_contained = true; - } - } - } - - return fully_contained; -} - - -void sp_tref_update_text(SPTRef *tref) -{ - if (tref) { - // Get the character data that will be used with this tref - Glib::ustring charData = ""; - build_string_from_root(tref->getObjectReferredTo()->getRepr(), &charData); - - if (tref->stringChild) { - tref->detach(tref->stringChild); - tref->stringChild = NULL; - } - - // Create the node and SPString to be the tref's child - Inkscape::XML::Document *xml_doc = tref->document->getReprDoc(); - - Inkscape::XML::Node *newStringRepr = xml_doc->createTextNode(charData.c_str()); - tref->stringChild = SPFactory::createObject(NodeTraits::get_type_string(*newStringRepr)); - - // Add this SPString as a child of the tref - tref->attach(tref->stringChild, tref->lastChild()); - sp_object_unref(tref->stringChild, NULL); - (tref->stringChild)->invoke_build(tref->document, newStringRepr, TRUE); - - Inkscape::GC::release(newStringRepr); - } -} - - - -/** - * Using depth-first search, build up a string by concatenating all SPStrings - * found in the tree starting at the root - */ -static void -build_string_from_root(Inkscape::XML::Node *root, Glib::ustring *retString) -{ - if (root && retString) { - - // Stop and concatenate when a SPString is found - if (root->type() == Inkscape::XML::TEXT_NODE) { - *retString += (root->content()); - - debug("%s", retString->c_str()); - - // Otherwise, continue searching down the tree (with the assumption that no children nodes - // of a SPString are actually legal) - } else { - Inkscape::XML::Node *childNode; - for (childNode = root->firstChild(); childNode; childNode = childNode->next()) { - build_string_from_root(childNode, retString); - } - } - } -} - -/** - * This function will create a new tspan element with the same attributes as - * the tref had and add the same text as a child. The tref is replaced in the - * tree with the new tspan. - * The code is based partially on sp_use_unlink - */ -SPObject * -sp_tref_convert_to_tspan(SPObject *obj) -{ - SPObject * new_tspan = NULL; - - //////////////////// - // BASE CASE - //////////////////// - if (SP_IS_TREF(obj)) { - - SPTRef *tref = SP_TREF(obj); - - if (tref && tref->stringChild) { - Inkscape::XML::Node *tref_repr = tref->getRepr(); - Inkscape::XML::Node *tref_parent = tref_repr->parent(); - - SPDocument *document = tref->document; - Inkscape::XML::Document *xml_doc = document->getReprDoc(); - - Inkscape::XML::Node *new_tspan_repr = xml_doc->createElement("svg:tspan"); - - // Add the new tspan element just after the current tref - tref_parent->addChild(new_tspan_repr, tref_repr); - Inkscape::GC::release(new_tspan_repr); - - new_tspan = document->getObjectByRepr(new_tspan_repr); - - // Create a new string child for the tspan - Inkscape::XML::Node *new_string_repr = tref->stringChild->getRepr()->duplicate(xml_doc); - new_tspan_repr->addChild(new_string_repr, NULL); - - //SPObject * new_string_child = document->getObjectByRepr(new_string_repr); - - // Merge style from the tref - new_tspan->style->merge( tref->style ); - new_tspan->style->cascade( new_tspan->parent->style ); - new_tspan->updateRepr(); - - // Hold onto our SPObject and repr for now. - sp_object_ref(tref, NULL); - Inkscape::GC::anchor(tref_repr); - - // Remove ourselves, not propagating delete events to avoid a - // chain-reaction with other elements that might reference us. - tref->deleteObject(false); - - // Give the copy our old id and let go of our old repr. - new_tspan_repr->setAttribute("id", tref_repr->attribute("id")); - Inkscape::GC::release(tref_repr); - - // Establish the succession and let go of our object. - tref->setSuccessor(new_tspan); - sp_object_unref(tref, NULL); - } - } - //////////////////// - // RECURSIVE CASE - //////////////////// - else { - std::vector<SPObject *> l; - for (auto& child: obj->children) { - sp_object_ref(&child, obj); - l.push_back(&child); - } - for(auto child:l) { - // Note that there may be more than one conversion happening here, so if it's not a - // tref being passed into this function, the returned value can't be specifically known - new_tspan = sp_tref_convert_to_tspan(child); - - sp_object_unref(child, obj); - } - } - - return new_tspan; -} - - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |