connect length to viewer node for now

app/node/output/viewer/viewer.cpp

@@ -24,9 +24,13 @@ ViewerOutput::ViewerOutput() :
   viewer_width_(0),
   viewer_height_(0)
 {
-  texture_input_ = new NodeInput("tex_out");
+  texture_input_ = new NodeInput("tex_in");
   texture_input_->add_data_input(NodeInput::kTexture);
   AddParameter(texture_input_);
+
+  length_input_ = new NodeInput("length_in");
+  length_input_->add_data_input(NodeInput::kRational);
+  AddParameter(length_input_);
 }
 
 QString ViewerOutput::Name()
@@ -66,6 +70,11 @@ NodeInput *ViewerOutput::texture_input()
   return texture_input_;
 }
 
+NodeInput *ViewerOutput::length_input()
+{
+  return length_input_;
+}
+
 RenderTexturePtr ViewerOutput::GetTexture(const rational &time)
 {
   return texture_input_->get_value(time).value<RenderTexturePtr>();
@@ -98,6 +107,11 @@ const int &ViewerOutput::ViewerHeight()
   return viewer_height_;
 }
 
+rational ViewerOutput::Length()
+{
+  return length_input_->get_value(0).value<rational>();
+}
+
 QVariant ViewerOutput::Value(NodeOutput *output, const rational &time)
 {
   Q_UNUSED(output)

app/node/output/viewer/viewer.h

@@ -44,6 +44,7 @@ public:
   void SetTimebase(const rational& timebase);
 
   NodeInput* texture_input();
+  NodeInput* length_input();
 
   RenderTexturePtr GetTexture(const rational& time);
 
@@ -54,6 +55,8 @@ public:
   const int& ViewerWidth();
   const int& ViewerHeight();
 
+  rational Length();
+
 signals:
   void TimebaseChanged(const rational&);
 
@@ -67,6 +70,8 @@ protected:
 private:
   NodeInput* texture_input_;
 
+  NodeInput* length_input_;
+
   rational timebase_;
 
   int viewer_width_;