Added copyright lines for files I've edited this year.

[synfig.git] / synfig-core / trunk / src / synfig / savecanvas.cpp

diff --git a/synfig-core/trunk/src/synfig/savecanvas.cpp b/synfig-core/trunk/src/synfig/savecanvas.cpp
index 299472b..eb2bf75 100644 (file)
--- a/synfig-core/trunk/src/synfig/savecanvas.cpp
+++ b/synfig-core/trunk/src/synfig/savecanvas.cpp
@@ -6,7 +6,7 @@
 **
 **     \legal
 **     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**     Copyright (c) 2007 Chris Moore
+**     Copyright (c) 2007, 2008 Chris Moore
 **
 **     This package is free software; you can redistribute it and/or
 **     modify it under the terms of the GNU General Public License as
@@ -79,6 +79,9 @@ using namespace synfig;
 
 /* === G L O B A L S ======================================================= */
 
+ReleaseVersion save_canvas_version = ReleaseVersion(RELEASE_VERSION_END-1);
+int valuenode_too_new_count;
+
 /* === P R O C E D U R E S ================================================= */
 
 xmlpp::Element* encode_canvas(xmlpp::Element* root,Canvas::ConstHandle canvas);
@@ -342,27 +345,6 @@ xmlpp::Element* encode_animated(xmlpp::Element* root,ValueNode_Animated::ConstHa
        return root;
 }
 
-xmlpp::Element* encode_composite(xmlpp::Element* root,ValueNode_Composite::ConstHandle value_node,Canvas::ConstHandle canvas=0)
-{
-       assert(value_node);
-       root->set_name("composite");
-
-       root->set_attribute("type",ValueBase::type_name(value_node->get_type()));
-
-       int i;
-       for(i=0;i<value_node->link_count();i++)
-       {
-               string name(value_node->link_name(i));
-               assert(value_node->get_link(i));
-               if(value_node->get_link(i)->is_exported())
-                       root->set_attribute(name,value_node->get_link(i)->get_relative_id(canvas));
-               else
-                       encode_value_node(root->add_child(name)->add_child("value_node"),value_node->get_link(i).constant(),canvas);
-       }
-
-       return root;
-}
-
 xmlpp::Element* encode_subtract(xmlpp::Element* root,ValueNode_Subtract::ConstHandle value_node,Canvas::ConstHandle canvas=0)
 {
        assert(value_node);
@@ -491,7 +473,26 @@ xmlpp::Element* encode_dynamic_list(xmlpp::Element* root,ValueNode_DynamicList::
 xmlpp::Element* encode_linkable_value_node(xmlpp::Element* root,LinkableValueNode::ConstHandle value_node,Canvas::ConstHandle canvas=0)
 {
        assert(value_node);
-       root->set_name(value_node->get_name());
+
+       String name(value_node->get_name());
+       ReleaseVersion saving_version(get_file_version());
+       ReleaseVersion feature_version(LinkableValueNode::book()[name].release_version);
+
+       if (saving_version < feature_version)
+       {
+               valuenode_too_new_count++;
+               warning("can't save <%s> valuenodes in this old file format version", name.c_str());
+
+               ValueBase value((*value_node)(0));
+               encode_value(root,value,canvas);
+
+               // ValueNode_Const::ConstHandle const_value(ValueNode_Const::create((*value_node)(0)));
+               // encode_value_node(root,const_value,canvas);
+
+               return root;
+       }
+
+       root->set_name(name);
 
        root->set_attribute("type",ValueBase::type_name(value_node->get_type()));
 
@@ -517,9 +518,6 @@ xmlpp::Element* encode_value_node(xmlpp::Element* root,ValueNode::ConstHandle va
        if(ValueNode_Animated::ConstHandle::cast_dynamic(value_node))
                encode_animated(root,ValueNode_Animated::ConstHandle::cast_dynamic(value_node),canvas);
        else
-       if(ValueNode_Composite::ConstHandle::cast_dynamic(value_node))
-               encode_composite(root,ValueNode_Composite::ConstHandle::cast_dynamic(value_node),canvas);
-       else
        if(ValueNode_Subtract::ConstHandle::cast_dynamic(value_node))
                encode_subtract(root,ValueNode_Subtract::ConstHandle::cast_dynamic(value_node),canvas);
        else
@@ -738,6 +736,18 @@ xmlpp::Element* encode_canvas(xmlpp::Element* root,Canvas::ConstHandle canvas)
        return root;
 }
 
+xmlpp::Element* encode_canvas_toplevel(xmlpp::Element* root,Canvas::ConstHandle canvas)
+{
+       valuenode_too_new_count = 0;
+
+       xmlpp::Element* ret = encode_canvas(root, canvas);
+
+       if (valuenode_too_new_count)
+               warning("saved %d valuenodes as constant values in old file format\n", valuenode_too_new_count);
+
+       return ret;
+}
+
 bool
 synfig::save_canvas(const String &filename, Canvas::ConstHandle canvas)
 {
@@ -755,7 +765,7 @@ synfig::save_canvas(const String &filename, Canvas::ConstHandle canvas)
                assert(canvas);
                xmlpp::Document document;
 
-               encode_canvas(document.create_root_node("canvas"),canvas);
+               encode_canvas_toplevel(document.create_root_node("canvas"),canvas);
 
                document.write_to_file_formatted(tmp_filename);
        }
@@ -793,7 +803,19 @@ synfig::canvas_to_string(Canvas::ConstHandle canvas)
 
        xmlpp::Document document;
 
-       encode_canvas(document.create_root_node("canvas"),canvas);
+       encode_canvas_toplevel(document.create_root_node("canvas"),canvas);
 
        return document.write_to_string_formatted();
 }
+
+void
+synfig::set_file_version(ReleaseVersion version)
+{
+       save_canvas_version = version;
+}
+
+ReleaseVersion
+synfig::get_file_version()
+{
+       return save_canvas_version;
+}