Add optional debugging for calls to ValueNode_*::operator(). export SYNFIG_DEBUG_VAL...

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

diff --git a/synfig-core/trunk/src/synfig/valuenode_blinecalcvertex.cpp b/synfig-core/trunk/src/synfig/valuenode_blinecalcvertex.cpp
index e32d9bc..a6fc589 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_blinecalcvertex.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_blinecalcvertex.cpp
@@ -87,6 +87,9 @@ ValueNode_BLineCalcVertex::~ValueNode_BLineCalcVertex()
 ValueBase
 ValueNode_BLineCalcVertex::operator()(Time t)const
 {
+       if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+               printf("%s:%d operator()\n", __FILE__, __LINE__);
+
        const std::vector<ValueBase> bline((*bline_)(t).get_list());
        handle<ValueNode_BLine> bline_value_node(bline_);
        const bool looped(bline_value_node->get_loop());