bug 1243190: add tref element support; limited editing support thus far (patch by...

[inkscape.git] / src / sp-tref-reference.cpp

diff --git a/src/sp-tref-reference.cpp b/src/sp-tref-reference.cpp
new file mode 100644 (file)
index 0000000..f3b6ef3
--- /dev/null
+++ b/src/sp-tref-reference.cpp
@@ -0,0 +1,108 @@
+/*
+ * The reference corresponding to href of <tref> element.
+ *
+ * Copyright (C) 2007 Gail Banaszkiewicz
+ * 
+ * This file was created based on sp-use-reference.cpp
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information.
+ */
+
+//#include "enums.h"
+#include "sp-tref-reference.h"
+
+#include "sp-text.h"
+#include "sp-tref.h"
+#include "sp-tspan.h"
+
+
+
+bool SPTRefReference::_acceptObject(SPObject * const obj) const
+{
+    SPObject *owner = getOwner();
+    if (SP_IS_TREF(owner))
+        return sp_tref_reference_allowed(SP_TREF(getOwner()), obj);
+    else
+        return false;
+}
+
+
+void SPTRefReference::updateObserver()
+{
+    SPObject *referred = getObject();
+    
+    if (referred) {
+        if (subtreeObserved) {
+            subtreeObserved->removeObserver(*this);
+            delete subtreeObserved;   
+        }
+        
+        subtreeObserved = new Inkscape::XML::Subtree(*SP_OBJECT_REPR(referred));
+        subtreeObserved->addObserver(*this);
+    }
+}
+
+
+void SPTRefReference::notifyChildAdded(Inkscape::XML::Node &node, Inkscape::XML::Node &child,
+                                       Inkscape::XML::Node *prev)
+{
+    SPObject *owner = getOwner();
+    
+    if (owner && SP_IS_TREF(owner)) {
+        sp_tref_update_text(SP_TREF(owner));
+    }    
+}
+
+
+void SPTRefReference::notifyChildRemoved(Inkscape::XML::Node &node, Inkscape::XML::Node &child,
+                                         Inkscape::XML::Node *prev)
+{
+    SPObject *owner = getOwner();
+    
+    if (owner && SP_IS_TREF(owner)) {
+        sp_tref_update_text(SP_TREF(owner));
+    }
+}
+
+
+void SPTRefReference::notifyChildOrderChanged(Inkscape::XML::Node &node, Inkscape::XML::Node &child,
+                                              Inkscape::XML::Node *old_prev, Inkscape::XML::Node *new_prev)
+{
+    SPObject *owner = getOwner();
+    
+    if (owner && SP_IS_TREF(owner)) {
+        sp_tref_update_text(SP_TREF(owner));
+    }
+}
+ 
+                                        
+void SPTRefReference::notifyContentChanged(Inkscape::XML::Node &node,
+                                           Inkscape::Util::ptr_shared<char> old_content,
+                                           Inkscape::Util::ptr_shared<char> new_content)
+{
+    SPObject *owner = getOwner();
+    
+    if (owner && SP_IS_TREF(owner)) {
+        sp_tref_update_text(SP_TREF(owner));
+    }
+}
+
+
+void SPTRefReference::notifyAttributeChanged(Inkscape::XML::Node &node, GQuark name,
+                                             Inkscape::Util::ptr_shared<char> old_value,
+                                             Inkscape::Util::ptr_shared<char> new_value)
+{
+    // Do nothing - tref only cares about textual content
+}
+
+
+/*
+  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 :