From f1853221eb20d3c9a8bd72d4fd16f3cea436c894 Mon Sep 17 00:00:00 2001
From: dooglus <dooglus@1f10aa63-cdf2-0310-b900-c93c546f37ac>
Date: Tue, 15 Jan 2008 14:47:39 +0000
Subject: [PATCH] Improved the formatting of ValueNode descriptions for use in
 the History dialog.

git-svn-id: http://svn.voria.com/code@1369 1f10aa63-cdf2-0310-b900-c93c546f37ac
---
 synfig-core/trunk/src/synfig/valuenode.cpp | 70 ++++++++++++++++++++++++++++++
 synfig-core/trunk/src/synfig/valuenode.h   |  6 +++
 2 files changed, 76 insertions(+)

diff --git a/synfig-core/trunk/src/synfig/valuenode.cpp b/synfig-core/trunk/src/synfig/valuenode.cpp
index 3c537d3..d264d91 100644
--- a/synfig-core/trunk/src/synfig/valuenode.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode.cpp
@@ -37,6 +37,7 @@
 #include "valuenode.h"
 #include "general.h"
 #include "canvas.h"
+#include "paramdesc.h"
 
 #include "valuenode_const.h"
 #include "valuenode_linear.h"
@@ -310,6 +311,15 @@ ValueNode::set_id(const String &x)
 	}
 }
 
+String
+ValueNode::get_description(bool show_exported_name)const
+{
+	if (dynamic_cast<const LinkableValueNode*>(this))
+		return (dynamic_cast<const LinkableValueNode*>(this))->get_description(-1, show_exported_name);
+
+	return "ValueNode";
+}
+
 ValueNodeList::ValueNodeList():
 	placeholder_count_(0)
 {
@@ -555,3 +565,63 @@ void LinkableValueNode::get_times_vfunc(Node::time_set &set) const
 		}
 	}
 }
+
+String
+LinkableValueNode::get_description(int index, bool show_exported_name)const
+{
+	String description;
+
+	if (show_exported_name && !is_exported())
+		show_exported_name = false;
+
+	if (index != -1)
+		description = String(":") + link_local_name(index);
+
+	const synfig::Node* node = this;
+	LinkableValueNode::ConstHandle parent_linkable_vn = 0;
+
+	// walk up through the valuenodes trying to find the layer at the top
+	while (!node->parent_set.empty() && !dynamic_cast<const Layer*>(node))
+	{
+		LinkableValueNode::ConstHandle linkable_value_node(dynamic_cast<const LinkableValueNode*>(node));
+		if (linkable_value_node)
+		{
+			String link;
+			int cnt = linkable_value_node->link_count();
+			for (int i = 0; i < cnt; i++)
+				if (linkable_value_node->get_link(i) == parent_linkable_vn)
+				{
+					link = String(":") + linkable_value_node->link_local_name(i);
+					break;
+				}
+
+			description = linkable_value_node->get_local_name() + link + (parent_linkable_vn?">":"") + description;
+		}
+		node = *node->parent_set.begin();
+		parent_linkable_vn = linkable_value_node;
+	}
+
+	Layer::ConstHandle parent_layer(dynamic_cast<const Layer*>(node));
+	if(parent_layer)
+	{
+		String param;
+		const Layer::DynamicParamList &dynamic_param_list(parent_layer->dynamic_param_list());
+		// loop to find the parameter in the dynamic parameter list - this gives us its name
+		for (Layer::DynamicParamList::const_iterator iter = dynamic_param_list.begin(); iter != dynamic_param_list.end(); iter++)
+			if (iter->second == parent_linkable_vn)
+			{
+				String param_local_name(parent_layer->get_param_local_name(iter->first));
+				if (!param_local_name.empty())
+					param = String(":(nu)") + param_local_name;
+			}
+		description = strprintf("(%s)%s>%s",
+								parent_layer->get_non_empty_description().c_str(),
+								param.c_str(),
+								description.c_str());
+	}
+
+	if (show_exported_name)
+		description += strprintf(" (%s)", get_id().c_str());
+
+	return description;
+}
diff --git a/synfig-core/trunk/src/synfig/valuenode.h b/synfig-core/trunk/src/synfig/valuenode.h
index 4d2c778..62940c3 100644
--- a/synfig-core/trunk/src/synfig/valuenode.h
+++ b/synfig-core/trunk/src/synfig/valuenode.h
@@ -212,6 +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;
@@ -346,6 +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); }
-- 
2.7.4