diff --git a/src/sp-object.cpp b/src/sp-object.cpp
index f97007b5140afeea94db994886676cdeb766777b..6526435de98101f25ae6fc984d79a4876648b52b 100644 (file)
--- a/src/sp-object.cpp
+++ b/src/sp-object.cpp
*/
/** \class SPObject
- *
+ *
* SPObject is an abstract base class of all of the document nodes at the
* SVG document level. Each SPObject subclass implements a certain SVG
* element node type, or is an abstract base class for different node
#include "xml/repr.h"
#include "xml/node-fns.h"
#include "debug/event-tracker.h"
+#include "debug/simple-event.h"
+#include "debug/demangle.h"
+#include "util/share.h"
+#include "util/format.h"
#include "algorithms/longest-common-suffix.h"
using std::memcpy;
guint update_in_progress = 0; // guard against update-during-update
-enum {RELEASE, MODIFIED, LAST_SIGNAL};
-
Inkscape::XML::NodeEventVector object_event_vector = {
sp_object_repr_child_added,
sp_object_repr_child_removed,
};
static GObjectClass *parent_class;
-static guint object_signals[LAST_SIGNAL] = {0};
/**
* Registers the SPObject class with Gdk and returns its type number.
parent_class = (GObjectClass *) g_type_class_ref(G_TYPE_OBJECT);
- object_signals[RELEASE] = g_signal_new("release",
- G_TYPE_FROM_CLASS(klass),
- (GSignalFlags)(G_SIGNAL_RUN_CLEANUP | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS),
- G_STRUCT_OFFSET(SPObjectClass, release),
- NULL, NULL,
- sp_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
- object_signals[MODIFIED] = g_signal_new("modified",
- G_TYPE_FROM_CLASS(klass),
- G_SIGNAL_RUN_FIRST,
- G_STRUCT_OFFSET(SPObjectClass, modified),
- NULL, NULL,
- sp_marshal_NONE__UINT,
- G_TYPE_NONE, 1, G_TYPE_UINT);
-
object_class->finalize = sp_object_finalize;
klass->child_added = sp_object_child_added;
object->parent = object->next = NULL;
object->repr = NULL;
object->id = NULL;
- object->style = NULL;
object->_collection_policy = SPObject::COLLECT_WITH_PARENT;
+ new (&object->_release_signal) sigc::signal<void, SPObject *>();
+ new (&object->_modified_signal) sigc::signal<void, SPObject *, unsigned int>();
new (&object->_delete_signal) sigc::signal<void, SPObject *>();
+ new (&object->_position_changed_signal) sigc::signal<void, SPObject *>();
object->_successor = NULL;
+ // FIXME: now we create style for all objects, but per SVG, only the following can have style attribute:
+ // vg, g, defs, desc, title, symbol, use, image, switch, path, rect, circle, ellipse, line, polyline,
+ // polygon, text, tspan, tref, textPath, altGlyph, glyphRef, marker, linearGradient, radialGradient,
+ // stop, pattern, clipPath, mask, filter, feImage, a, font, glyph, missing-glyph, foreignObject
+ object->style = sp_style_new_from_object(object);
+
object->_label = NULL;
object->_default_label = NULL;
}
(* ((GObjectClass *) (parent_class))->finalize)(object);
}
+ spobject->_release_signal.~signal();
+ spobject->_modified_signal.~signal();
spobject->_delete_signal.~signal();
+ spobject->_position_changed_signal.~signal();
}
namespace {
-Inkscape::Util::shared_ptr<char> stringify(SPObject *obj) {
- char *temp=g_strdup_printf("%p", obj);
- Inkscape::Util::shared_ptr<char> result=Inkscape::Util::share_string(temp);
- g_free(temp);
- return result;
-}
+namespace Debug = Inkscape::Debug;
+namespace Util = Inkscape::Util;
-Inkscape::Util::shared_ptr<char> stringify(unsigned n) {
- char *temp=g_strdup_printf("%u", n);
- Inkscape::Util::shared_ptr<char> result=Inkscape::Util::share_string(temp);
- g_free(temp);
- return result;
-}
+typedef Debug::SimpleEvent<Debug::Event::REFCOUNT> BaseRefCountEvent;
-class RefEvent : public Inkscape::Debug::Event {
+class RefCountEvent : public BaseRefCountEvent {
public:
- enum Type { REF, UNREF };
+ RefCountEvent(SPObject *object, int bias, Util::ptr_shared<char> name)
+ : BaseRefCountEvent(name)
+ {
+ _addProperty("object", Util::format("%p", object));
+ _addProperty("class", Debug::demangle(g_type_name(G_TYPE_FROM_INSTANCE(object))));
+ _addProperty("new-refcount", Util::format("%d", G_OBJECT(object)->ref_count + bias));
+ }
+};
- RefEvent(SPObject *object, Type type)
- : _object(stringify(object)), _refcount(G_OBJECT(object)->ref_count),
- _type(type)
+class RefEvent : public RefCountEvent {
+public:
+ RefEvent(SPObject *object)
+ : RefCountEvent(object, 1, Util::share_static_string("sp-object-ref"))
{}
+};
- static Category category() { return REFCOUNT; }
-
- Inkscape::Util::shared_ptr<char> name() const {
- if ( _type == REF) {
- return Inkscape::Util::share_static_string("sp-object-ref");
- } else {
- return Inkscape::Util::share_static_string("sp-object-unref");
- }
- }
- unsigned propertyCount() const { return 2; }
- PropertyPair property(unsigned index) const {
- switch (index) {
- case 0:
- return PropertyPair("object", _object);
- case 1:
- return PropertyPair("refcount", stringify( _type == REF ? _refcount + 1 : _refcount - 1 ));
- default:
- return PropertyPair();
- }
- }
-
-private:
- Inkscape::Util::shared_ptr<char> _object;
- unsigned _refcount;
- Type _type;
+class UnrefEvent : public RefCountEvent {
+public:
+ UnrefEvent(SPObject *object)
+ : RefCountEvent(object, -1, Util::share_static_string("sp-object-unref"))
+ {}
};
}
g_return_val_if_fail(SP_IS_OBJECT(object), NULL);
g_return_val_if_fail(!owner || SP_IS_OBJECT(owner), NULL);
- Inkscape::Debug::EventTracker<> tracker;
- tracker.set<RefEvent>(object, RefEvent::REF);
-
+ Inkscape::Debug::EventTracker<RefEvent> tracker(object);
g_object_ref(G_OBJECT(object));
-
return object;
}
g_return_val_if_fail(SP_IS_OBJECT(object), NULL);
g_return_val_if_fail(!owner || SP_IS_OBJECT(owner), NULL);
- Inkscape::Debug::EventTracker<> tracker;
- tracker.set<RefEvent>(object, RefEvent::UNREF);
-
+ Inkscape::Debug::EventTracker<UnrefEvent> tracker(object);
g_object_unref(G_OBJECT(object));
-
return NULL;
}
*
* Hrefcount is used for weak references, for example, to
* determine whether any graphical element references a certain gradient
- * node.
+ * node.
* \param owner Ignored.
* \return object, NULL is error
* \pre object points to real object
/**
* Decrease weak refcount.
*
- * Hrefcount is used for weak references, for example, to determine whether
+ * Hrefcount is used for weak references, for example, to determine whether
* any graphical element references a certain gradient node.
* \param owner Ignored.
* \return always NULL
/**
* Adds increment to _total_hrefcount of object and its parents.
*/
-void
+void
SPObject::_updateTotalHRefCount(int increment) {
SPObject *topmost_collectable = NULL;
for ( SPObject *iter = this ; iter ; iter = SP_OBJECT_PARENT(iter) ) {
/**
* True if object is non-NULL and this is some in/direct parent of object.
*/
-bool
+bool
SPObject::isAncestorOf(SPObject const *object) const {
g_return_val_if_fail(object != NULL, false);
object = SP_OBJECT_PARENT(object);
/**
* Compares height of objects in tree.
- *
- * Works for different-parent objects, so long as they have a common ancestor.
+ *
+ * Works for different-parent objects, so long as they have a common ancestor.
* \return \verbatim
* 0 positions are equivalent
* 1 first object's position is greater than the second
}
}
+/**
+ * Retrieves the children as a GSList object, optionally ref'ing the children
+ * in the process, if add_ref is specified.
+ */
+GSList *SPObject::childList(bool add_ref, Action) {
+ GSList *l = NULL;
+ for (SPObject *child = sp_object_first_child(this) ; child != NULL; child = SP_OBJECT_NEXT(child) ) {
+ if (add_ref)
+ g_object_ref (G_OBJECT (child));
+
+ l = g_slist_prepend (l, child);
+ }
+ return l;
+
+}
+
/** Gets the label property for the object or a default if no label
* is defined.
*/
}
/** Sets the label property for the object */
-void
+void
SPObject::setLabel(gchar const *label) {
SP_OBJECT_REPR(this)->setAttribute("inkscape:label", label, false);
}
/** Queues the object for orphan collection */
-void
+void
SPObject::requestOrphanCollection() {
g_return_if_fail(document != NULL);
document->queueForOrphanCollection(this);
/** \todo
- * This is a temporary hack added to make fill&stroke rebuild its
- * gradient list when the defs are vacuumed. gradient-vector.cpp
- * listens to the modified signal on defs, and now we give it that
+ * This is a temporary hack added to make fill&stroke rebuild its
+ * gradient list when the defs are vacuumed. gradient-vector.cpp
+ * listens to the modified signal on defs, and now we give it that
* signal. Mental says that this should be made automatic by
- * merging SPObjectGroup with SPObject; SPObjectGroup would issue
- * this signal automatically. Or maybe just derive SPDefs from
+ * merging SPObjectGroup with SPObject; SPObjectGroup would issue
+ * this signal automatically. Or maybe just derive SPDefs from
* SPObjectGroup?
*/
-
+
this->requestModified(SP_OBJECT_CHILD_MODIFIED_FLAG);
}
/** Sends the delete signal to all children of this object recursively */
-void
+void
SPObject::_sendDeleteSignalRecursive() {
for (SPObject *child = sp_object_first_child(this); child; child = SP_OBJECT_NEXT(child)) {
child->_delete_signal.emit(child);
/**
* Deletes the object reference, unparenting it from its parent.
- *
+ *
* If the \a propagate parameter is set to true, it emits a delete
* signal. If the \a propagate_descendants parameter is true, it
* recursively sends the delete signal to children.
*/
-void
+void
SPObject::deleteObject(bool propagate, bool propagate_descendants)
{
sp_object_ref(this, NULL);
/**
* In list of object's siblings, move object behind prev.
*/
-void
+void
sp_object_reorder(SPObject *object, SPObject *prev) {
g_return_if_fail(object != NULL);
g_return_if_fail(SP_IS_OBJECT(object));
/**
* Remove object from parent's children, release and unref it.
*/
-void
+void
sp_object_detach(SPObject *parent, SPObject *object) {
g_return_if_fail(parent != NULL);
g_return_if_fail(SP_IS_OBJECT(parent));
g_return_if_fail(SP_IS_OBJECT(object));
g_return_if_fail(object->parent == parent);
+ object->releaseReferences();
+
SPObject *prev=NULL;
for ( SPObject *child = parent->children ; child && child != object ;
child = child->next )
object->next = NULL;
object->parent = NULL;
- sp_object_invoke_release(object);
parent->_updateTotalHRefCount(-object->_total_hrefcount);
sp_object_unref(object, parent);
}
* Callback for child_added event.
* Invoked whenever the given mutation event happens in the XML tree.
*/
-static void
+static void
sp_object_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
{
GType type = sp_repr_type_lookup(child);
}
/**
- * Remove object's child whose node equals repr, release and
+ * Remove object's child whose node equals repr, release and
* unref it.
*
* Invoked whenever the given mutation event happens in the XML
- * tree, BEFORE removal from the XML tree happens, so grouping
+ * tree, BEFORE removal from the XML tree happens, so grouping
* objects can safely release the child data.
*/
-static void
+static void
sp_object_remove_child(SPObject *object, Inkscape::XML::Node *child)
{
debug("id=%x, typename=%s", object, g_type_name_from_instance((GTypeInstance*)object));
SPObject *ochild = sp_object_get_child_by_repr(object, child);
- g_return_if_fail(ochild != NULL);
- sp_object_detach(object, ochild);
+ g_return_if_fail (ochild != NULL || !strcmp("comment", child->name())); // comments have no objects
+ if (ochild)
+ sp_object_detach(object, ochild);
}
/**
- * Move object corresponding to child after sibling object corresponding
+ * Move object corresponding to child after sibling object corresponding
* to new_ref.
* Invoked whenever the given mutation event happens in the XML tree.
* \param old_ref Ignored
@@ -771,11 +760,12 @@ static void sp_object_order_changed(SPObject *object, Inkscape::XML::Node *child
g_return_if_fail(ochild != NULL);
SPObject *prev = new_ref ? sp_object_get_child_by_repr(object, new_ref) : NULL;
sp_object_reorder(ochild, prev);
+ ochild->_position_changed_signal.emit(ochild);
}
/**
* Virtual build callback.
- *
+ *
* This has to be invoked immediately after creation of an SPObject. The
* frontend method ensures that the new object is properly attached to
* the document and repr; implementation then will parse all of the attributes,
@@ -831,20 +821,26 @@ sp_object_invoke_build(SPObject *object, SPDocument *document, Inkscape::XML::No
object->document->bindObjectToRepr(object->repr, object);
if (Inkscape::XML::id_permitted(object->repr)) {
- /* If we are not cloned, force unique id */
+ /* If we are not cloned, and not seeking, force unique id */
gchar const *id = object->repr->attribute("id");
- gchar *realid = sp_object_get_unique_id(object, id);
- g_assert(realid != NULL);
-
- object->document->bindObjectToId(realid, object);
- object->id = realid;
-
- /* Redefine ID, if required */
- if ((id == NULL) || (strcmp(id, realid) != 0)) {
- gboolean undo_sensitive=sp_document_get_undo_sensitive(document);
- sp_document_set_undo_sensitive(document, FALSE);
- object->repr->setAttribute("id", realid);
- sp_document_set_undo_sensitive(document, undo_sensitive);
+ if (!document->isSeeking()) {
+ gchar *realid = sp_object_get_unique_id(object, id);
+ g_assert(realid != NULL);
+
+ object->document->bindObjectToId(realid, object);
+ object->id = realid;
+
+ /* Redefine ID, if required */
+ if ((id == NULL) || (strcmp(id, realid) != 0)) {
+ object->repr->setAttribute("id", realid);
+ }
+ } else if (id) {
+ // bind if id, but no conflict -- otherwise, we can expect
+ // a subsequent setting of the id attribute
+ if (!object->document->getObjectById(id)) {
+ object->document->bindObjectToId(id, object);
+ object->id = g_strdup(id);
+ }
}
}
} else {
@@ -861,48 +857,44 @@ sp_object_invoke_build(SPObject *object, SPDocument *document, Inkscape::XML::No
sp_repr_add_listener(repr, &object_event_vector, object);
}
-void
-sp_object_invoke_release(SPObject *object)
-{
- g_assert(object != NULL);
- g_assert(SP_IS_OBJECT(object));
-
- // we need to remember our parent
- // g_assert(!object->parent);
- g_assert(!object->next);
- g_assert(object->document);
- g_assert(object->repr);
+void SPObject::releaseReferences() {
+ g_assert(this->document);
+ g_assert(this->repr);
- sp_repr_remove_listener_by_data(object->repr, object);
+ sp_repr_remove_listener_by_data(this->repr, this);
- g_signal_emit(G_OBJECT(object), object_signals[RELEASE], 0);
+ this->_release_signal.emit(this);
+ SPObjectClass *klass=(SPObjectClass *)G_OBJECT_GET_CLASS(this);
+ if (klass->release) {
+ klass->release(this);
+ }
/* all hrefs should be released by the "release" handlers */
- g_assert(object->hrefcount == 0);
+ g_assert(this->hrefcount == 0);
- if (!SP_OBJECT_IS_CLONED(object)) {
- if (object->id) {
- object->document->bindObjectToId(object->id, NULL);
+ if (!SP_OBJECT_IS_CLONED(this)) {
+ if (this->id) {
+ this->document->bindObjectToId(this->id, NULL);
}
- g_free(object->id);
- object->id = NULL;
+ g_free(this->id);
+ this->id = NULL;
- g_free(object->_default_label);
- object->_default_label = NULL;
+ g_free(this->_default_label);
+ this->_default_label = NULL;
- object->document->bindObjectToRepr(object->repr, NULL);
+ this->document->bindObjectToRepr(this->repr, NULL);
} else {
- g_assert(!object->id);
+ g_assert(!this->id);
}
- if (object->style) {
- object->style = sp_style_unref(object->style);
+ if (this->style) {
+ this->style = sp_style_unref(this->style);
}
- Inkscape::GC::release(object->repr);
+ Inkscape::GC::release(this->repr);
- object->document = NULL;
- object->repr = NULL;
+ this->document = NULL;
+ this->repr = NULL;
}
/**
@@ -932,7 +924,7 @@ sp_object_repr_child_removed(Inkscape::XML::Node *repr, Inkscape::XML::Node *chi
/**
* Callback for order_changed node event.
- *
+ *
* \todo fixme:
*/
static void
SPDocument *document=object->document;
SPObject *conflict=NULL;
- if (value) {
- conflict = document->getObjectById((char const *)value);
+ gchar const *new_id = value;
+
+ if (new_id) {
+ conflict = document->getObjectById((char const *)new_id);
}
+
if ( conflict && conflict != object ) {
- sp_object_ref(conflict, NULL);
- // give the conflicting object a new ID
- gchar *new_conflict_id = sp_object_get_unique_id(conflict, NULL);
- SP_OBJECT_REPR(conflict)->setAttribute("id", new_conflict_id);
- g_free(new_conflict_id);
- sp_object_unref(conflict, NULL);
+ if (!document->isSeeking()) {
+ sp_object_ref(conflict, NULL);
+ // give the conflicting object a new ID
+ gchar *new_conflict_id = sp_object_get_unique_id(conflict, NULL);
+ SP_OBJECT_REPR(conflict)->setAttribute("id", new_conflict_id);
+ g_free(new_conflict_id);
+ sp_object_unref(conflict, NULL);
+ } else {
+ new_id = NULL;
+ }
}
if (object->id) {
g_free(object->id);
}
- if (value) {
- object->id = g_strdup((char const*)value);
+ if (new_id) {
+ object->id = g_strdup((char const*)new_id);
document->bindObjectToId(object->id, object);
} else {
object->id = NULL;
@@ -1018,6 +1017,10 @@ sp_object_private_set(SPObject *object, unsigned int key, gchar const *value)
}
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
break;
+ case SP_ATTR_STYLE:
+ sp_style_read_from_object(object->style, object);
+ object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+ break;
default:
break;
}
sp_object_private_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
{
if (!repr && (flags & SP_OBJECT_WRITE_BUILD)) {
- repr = SP_OBJECT_REPR(object)->duplicate();
+ repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
if (!( flags & SP_OBJECT_WRITE_EXT )) {
repr->setAttribute("inkscape:collect", NULL);
}
@@ -1130,6 +1133,38 @@ sp_object_private_write(SPObject *object, Inkscape::XML::Node *repr, guint flags
} else {
repr->setAttribute("inkscape:collect", NULL);
}
+
+ SPStyle const *const obj_style = SP_OBJECT_STYLE(object);
+ if (obj_style) {
+ gchar *s = sp_style_write_string(obj_style, SP_STYLE_FLAG_IFSET);
+ repr->setAttribute("style", ( *s ? s : NULL ));
+ g_free(s);
+ } else {
+ /** \todo I'm not sure what to do in this case. Bug #1165868
+ * suggests that it can arise, but the submitter doesn't know
+ * how to do so reliably. The main two options are either
+ * leave repr's style attribute unchanged, or explicitly clear it.
+ * Must also consider what to do with property attributes for
+ * the element; see below.
+ */
+ char const *style_str = repr->attribute("style");
+ if (!style_str) {
+ style_str = "NULL";
+ }
+ g_warning("Item's style is NULL; repr style attribute is %s", style_str);
+ }
+
+ /** \note We treat object->style as authoritative. Its effects have
+ * been written to the style attribute above; any properties that are
+ * unset we take to be deliberately unset (e.g. so that clones can
+ * override the property).
+ *
+ * Note that the below has an undesirable consequence of changing the
+ * appearance on renderers that lack CSS support (e.g. SVG tiny);
+ * possibly we should write property attributes instead of a style
+ * attribute.
+ */
+ sp_style_unset_property_attrs (object);
}
return repr;
}
}
+/** Used both to create reprs in the original document, and to create
+ * reprs in another document (e.g. a temporary document used when
+ * saving as "Plain SVG"
+ */
Inkscape::XML::Node *
SPObject::updateRepr(Inkscape::XML::Node *repr, unsigned int flags) {
if (SP_OBJECT_IS_CLONED(this)) {
g_warning("Class %s does not implement ::write", G_OBJECT_TYPE_NAME(this));
if (!repr) {
if (flags & SP_OBJECT_WRITE_BUILD) {
- repr = SP_OBJECT_REPR(this)->duplicate();
+ /// \todo FIXME: Plumb an appropriate XML::Document into this
+ repr = SP_OBJECT_REPR(this)->duplicate(NULL);
}
- /// \todo fixme: else probably error (Lauris) */
+ /// \todo FIXME: else probably error (Lauris) */
} else {
repr->mergeFrom(SP_OBJECT_REPR(this), "id");
}
/* Modification */
-/**
- * Add \a flags to \a object's as dirtiness flags, and
+/**
+ * Add \a flags to \a object's as dirtiness flags, and
* recursively add CHILD_MODIFIED flag to
* parent and ancestors (as far up as necessary).
*/
void
SPObject::requestDisplayUpdate(unsigned int flags)
{
+ g_return_if_fail( this->document != NULL );
+
if (update_in_progress) {
g_print("WARNING: Requested update while update in progress, counter = %d\n", update_in_progress);
}
+ /* requestModified must be used only to set one of SP_OBJECT_MODIFIED_FLAG or
+ * SP_OBJECT_CHILD_MODIFIED_FLAG */
g_return_if_fail(!(flags & SP_OBJECT_PARENT_MODIFIED_FLAG));
g_return_if_fail((flags & SP_OBJECT_MODIFIED_FLAG) || (flags & SP_OBJECT_CHILD_MODIFIED_FLAG));
g_return_if_fail(!((flags & SP_OBJECT_MODIFIED_FLAG) && (flags & SP_OBJECT_CHILD_MODIFIED_FLAG)));
- /* Check for propagate before we set any flags */
- /* Propagate means, that this is not passed through by modification request cascade yet */
- unsigned int propagate = (!(this->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG)));
+ bool already_propagated = (!(this->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG)));
- /* Just set this flags safe even if some have been set before */
this->uflags |= flags;
- if (propagate) {
- if (this->parent) {
- this->parent->requestDisplayUpdate(SP_OBJECT_CHILD_MODIFIED_FLAG);
+ /* If requestModified has already been called on this object or one of its children, then we
+ * don't need to set CHILD_MODIFIED on our ancestors because it's already been done.
+ */
+ if (already_propagated) {
+ SPObject *parent = SP_OBJECT_PARENT(this);
+ if (parent) {
+ parent->requestDisplayUpdate(SP_OBJECT_CHILD_MODIFIED_FLAG);
} else {
- sp_document_request_modified(this->document);
+ sp_document_request_modified(SP_OBJECT_DOCUMENT(this));
}
}
}
+/**
+ * Update views
+ */
void
SPObject::updateDisplay(SPCtx *ctx, unsigned int flags)
{
// Merge style if we have good reasons to think that parent style is changed */
/** \todo
- * I am not sure whether we should check only propagated
- * flag. We are currently assuming that style parsing is
+ * I am not sure whether we should check only propagated
+ * flag. We are currently assuming that style parsing is
* done immediately. I think this is correct (Lauris).
*/
if ((flags & SP_OBJECT_STYLE_MODIFIED_FLAG) && (flags & SP_OBJECT_PARENT_MODIFIED_FLAG)) {
update_in_progress --;
}
+/**
+ * Request modified always bubbles *up* the tree, as opposed to
+ * request display update, which trickles down and relies on the
+ * flags set during this pass...
+ */
void
SPObject::requestModified(unsigned int flags)
{
g_return_if_fail( this->document != NULL );
- /* PARENT_MODIFIED is computed later on and is not intended to be
- * "manually" queued */
+ /* requestModified must be used only to set one of SP_OBJECT_MODIFIED_FLAG or
+ * SP_OBJECT_CHILD_MODIFIED_FLAG */
g_return_if_fail(!(flags & SP_OBJECT_PARENT_MODIFIED_FLAG));
-
- /* we should be setting either MODIFIED or CHILD_MODIFIED... */
g_return_if_fail((flags & SP_OBJECT_MODIFIED_FLAG) || (flags & SP_OBJECT_CHILD_MODIFIED_FLAG));
-
- /* ...but not both */
g_return_if_fail(!((flags & SP_OBJECT_MODIFIED_FLAG) && (flags & SP_OBJECT_CHILD_MODIFIED_FLAG)));
- unsigned int old_mflags=this->mflags;
+ bool already_propagated = (!(this->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG)));
+
this->mflags |= flags;
- /* If we already had MODIFIED or CHILD_MODIFIED queued, we will
- * have already queued CHILD_MODIFIED with our ancestors and
- * need not disturb them again.
+ /* If requestModified has already been called on this object or one of its children, then we
+ * don't need to set CHILD_MODIFIED on our ancestors because it's already been done.
*/
- if (!( old_mflags & ( SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG ) )) {
+ if (already_propagated) {
SPObject *parent=SP_OBJECT_PARENT(this);
if (parent) {
parent->requestModified(SP_OBJECT_CHILD_MODIFIED_FLAG);
}
}
+/**
+ * Emits the MODIFIED signal with the object's flags.
+ * The object's mflags are the original set aside during the update pass for
+ * later delivery here. Once emitModified() is called, those flags don't
+ * need to be stored any longer.
+ */
void
SPObject::emitModified(unsigned int flags)
{
this->mflags = 0;
g_object_ref(G_OBJECT(this));
- g_signal_emit(G_OBJECT(this), object_signals[MODIFIED], 0, flags);
+ SPObjectClass *klass=(SPObjectClass *)G_OBJECT_GET_CLASS(this);
+ if (klass->modified) {
+ klass->modified(this, flags);
+ }
+ _modified_signal.emit(this, flags);
g_object_unref(G_OBJECT(this));
}
* Returns an object style property.
*
* \todo
- * fixme: Use proper CSS parsing. The current version is buggy
- * in a number of situations where key is a substring of the
+ * fixme: Use proper CSS parsing. The current version is buggy
+ * in a number of situations where key is a substring of the
* style string other than as a property name (including
- * where key is a substring of a property name), and is also
- * buggy in its handling of inheritance for properties that
+ * where key is a substring of a property name), and is also
+ * buggy in its handling of inheritance for properties that
* aren't inherited by default. It also doesn't allow for
- * the case where the property is specified but with an invalid
- * value (in which case I believe the CSS2 error-handling
+ * the case where the property is specified but with an invalid
+ * value (in which case I believe the CSS2 error-handling
* behaviour applies, viz. behave as if the property hadn't
- * been specified). Also, the current code doesn't use CRSelEng
- * stuff to take a value from stylesheets. Also, we aren't
- * setting any hooks to force an update for changes in any of
- * the inputs (i.e., in any of the elements that this function
+ * been specified). Also, the current code doesn't use CRSelEng
+ * stuff to take a value from stylesheets. Also, we aren't
+ * setting any hooks to force an update for changes in any of
+ * the inputs (i.e., in any of the elements that this function
* queries).
*
* \par
- * Given that the default value for a property depends on what
- * property it is (e.g., whether to inherit or not), and given
- * the above comment about ignoring invalid values, and that the
- * repr parent isn't necessarily the right element to inherit
- * from (e.g., maybe we need to inherit from the referencing
- * <use> element instead), we should probably make the caller
+ * Given that the default value for a property depends on what
+ * property it is (e.g., whether to inherit or not), and given
+ * the above comment about ignoring invalid values, and that the
+ * repr parent isn't necessarily the right element to inherit
+ * from (e.g., maybe we need to inherit from the referencing
+ * <use> element instead), we should probably make the caller
* responsible for ascending the repr tree as necessary.
*/
gchar const *
sp_object_get_style_property(SPObject const *object, gchar const *key, gchar const *def)
-{
+{
g_return_val_if_fail(object != NULL, NULL);
g_return_val_if_fail(SP_IS_OBJECT(object), NULL);
g_return_val_if_fail(key != NULL, NULL);
@@ -1490,7 +1549,7 @@ sp_object_get_style_property(SPObject const *object, gchar const *key, gchar con
/**
* Lifts SVG version of all root objects to version.
*/
-void
+void
SPObject::_requireSVGVersion(Inkscape::Version version) {
for ( SPObject::ParentIterator iter=this ; iter ; ++iter ) {
SPObject *object=iter;