Disable the page selector when there's only one page

[inkscape.git] / src / sp-object.h

diff --git a/src/sp-object.h b/src/sp-object.h
index e853de097907055d0623422677b10fb8de7212d1..b563d8d3b8abd708a263cde9f92fae961533e9b9 100644 (file)
--- a/src/sp-object.h
+++ b/src/sp-object.h
@@ -158,6 +158,21 @@ struct SPObject : public GObject {
     Inkscape::XML::Node *repr; /* Our xml representation */
     gchar *id; /* Our very own unique id */
 
+    /** @brief cleans up an SPObject, releasing its references and
+     *         requesting that references to it be released
+     */
+    void releaseReferences();
+
+    /** @brief connects to the release request signal
+     *
+     *  @param slot the slot to connect
+     *
+     *  @returns the sigc::connection formed
+     */
+    sigc::connection connectRelease(sigc::slot<void, SPObject *> slot) {
+        return _release_signal.connect(slot);
+    }
+
     /**
      * Represents the style properties, whether from presentation attributes, the <tt>style</tt>
      * attribute, or inherited.
@@ -206,6 +221,10 @@ struct SPObject : public GObject {
     SPObject *lastChild() { return _last_child; }
     SPObject const *lastChild() const { return _last_child; }
 
+    enum Action { ActionGeneral, ActionBBox, ActionUpdate, ActionShow };    
+    /** @brief Retrieves children as a GSList */
+    GSList *childList(bool add_ref, Action action = ActionGeneral);
+
     SPObject *appendChildRepr(Inkscape::XML::Node *repr);
 
     /** @brief Gets the author-visible label for this object. */ 
@@ -287,6 +306,10 @@ struct SPObject : public GObject {
         }
     }
 
+    /** @brief Check if object is referenced by any other object.
+     */
+    bool isReferenced() { return ( _total_hrefcount > 0 ); }
+
     /** @brief Deletes an object.
      *
      * Detaches the object's repr, and optionally sends notification that the object has been
@@ -437,6 +460,18 @@ struct SPObject : public GObject {
      */
     void emitModified(unsigned int flags);
 
+    /** @brief Connects to the modification notification signal
+     *
+     *  @param slot the slot to connect
+     *
+     *  @returns the connection formed thereby
+     */
+    sigc::connection connectModified(
+      sigc::slot<void, SPObject *, unsigned int> slot
+    ) {
+        return _modified_signal.connect(slot);
+    }
+
     void _sendDeleteSignalRecursive();
     void _updateTotalHRefCount(int increment);
 
@@ -445,8 +480,10 @@ struct SPObject : public GObject {
     }
     void _requireSVGVersion(Inkscape::Version version);
 
+    sigc::signal<void, SPObject *> _release_signal;
     sigc::signal<void, SPObject *> _delete_signal;
     sigc::signal<void, SPObject *> _position_changed_signal;
+    sigc::signal<void, SPObject *, unsigned int> _modified_signal;
     SPObject *_successor;
     CollectionPolicy _collection_policy;
     gchar *_label;
@@ -493,7 +530,6 @@ inline SPObject *sp_object_first_child(SPObject *parent) {
 SPObject *sp_object_get_child_by_repr(SPObject *object, Inkscape::XML::Node *repr);
 
 void sp_object_invoke_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr, unsigned int cloned);
-void sp_object_invoke_release(SPObject *object);
 
 void sp_object_set(SPObject *object, unsigned int key, gchar const *value);