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

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

diff --git a/synfig-core/trunk/src/synfig/valuenode_step.cpp b/synfig-core/trunk/src/synfig/valuenode_step.cpp
index 130d2b2..98d9d80 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_step.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_step.cpp
@@ -105,6 +105,9 @@ ValueNode_Step::~ValueNode_Step()
 ValueBase
 ValueNode_Step::operator()(Time t)const
 {
+       if (getenv("SYNFIG_DEBUG_VALUENODE_OPERATORS"))
+               printf("%s:%d operator()\n", __FILE__, __LINE__);
+
        Time duration    ((*duration_    )(t).get(Time()));
        Time start_time  ((*start_time_  )(t).get(Time()));
        Real intersection((*intersection_)(t).get(Real()));