X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fsrc%2Fsynfig%2Fvaluenode.h;h=62940c3fbeeb6bd2770ffcf560d3529c3f51a114;hb=4cd211467061154545ef7b5f5617dce7b177bf16;hp=ccc11d4683143883e076aea0f2e85397757830dc;hpb=c3ad95144d148602f672e95ddda1f18fc35502f8;p=synfig.git

diff --git a/synfig-core/trunk/src/synfig/valuenode.h b/synfig-core/trunk/src/synfig/valuenode.h
index ccc11d4..62940c3 100644
--- a/synfig-core/trunk/src/synfig/valuenode.h
+++ b/synfig-core/trunk/src/synfig/valuenode.h
@@ -1,6 +1,6 @@
 /* === S Y N F I G ========================================================= */
 /*!	\file valuenode.h
-**	\brief Template Header
+**	\brief Header file for implementation of the "Placeholder" valuenode conversion.
 **
 **	$Id$
 **
@@ -59,6 +59,28 @@
 # define DCAST_HACK_ENABLE()
 #endif
 
+#define CHECK_TYPE_AND_SET_VALUE(variable, type)						\
+	/* I don't think this ever happens - maybe remove this code? */		\
+	if (get_type() == ValueBase::TYPE_NIL) {							\
+		warning("%s:%d get_type() IS nil sometimes!",					\
+				__FILE__, __LINE__);									\
+		return false;													\
+	}																	\
+	if (get_type() != ValueBase::TYPE_NIL &&							\
+		!(ValueBase::same_type_as(value->get_type(), type)) &&			\
+		!PlaceholderValueNode::Handle::cast_dynamic(value)) {			\
+		error(_("%s:%d wrong type for %s: need %s but got %s"),			\
+			  __FILE__, __LINE__,										\
+			  link_local_name(i).c_str(),								\
+			  ValueBase::type_local_name(type).c_str(),					\
+			  ValueBase::type_local_name(value->get_type()).c_str());	\
+		return false;													\
+	}																	\
+	variable = value;													\
+	signal_child_changed()(i);											\
+	signal_value_changed()();											\
+	return true
+
 /* === T Y P E D E F S ===================================================== */
 
 /* === C L A S S E S & S T R U C T S ======================================= */
@@ -190,6 +212,9 @@ public:
 	//! Returns the localized name of the ValueNode type
 	virtual String get_local_name()const=0;
 
+	//! Return a full description of the ValueNode and its parentage
+	virtual String get_description(bool show_exported_name = true)const;
+
 
 	//! \writeme
 	virtual ValueNode* clone(const GUID& deriv_guid=GUID())const=0;
@@ -324,6 +349,9 @@ public:
 	ValueNode::LooseHandle get_link(int i)const;
 	ValueNode::LooseHandle get_link(const String &name)const { return get_link(get_link_index_from_name(name)); }
 
+	String
+	get_description(int index, bool show_exported_name = true)const;
+
 protected:
 	//! Sets the type of the ValueNode
 	void set_type(ValueBase::Type t) { ValueNode::set_type(t); }