mocked up a prototype of decoding data into the node graph

app/widget/footagecombobox/footagecombobox.cpp

@@ -1,11 +1,13 @@
 #include "footagecombobox.h"
 
 #include <QAction>
+#include <QDebug>
 #include <QMenu>
 
 FootageComboBox::FootageComboBox(QWidget *parent) :
   QComboBox(parent),
-  root_(nullptr)
+  root_(nullptr),
+  footage_(nullptr)
 {
 
 }
@@ -25,11 +27,14 @@ void FootageComboBox::showPopup()
   QAction* selected = menu.exec(parentWidget()->mapToGlobal(pos()));
 
   if (selected != nullptr) {
+    // Use combobox functions to show the footage name
     clear();
 
     addItem(selected->text());
 
-    emit FootageChanged(reinterpret_cast<Footage*>(selected->data().value<quintptr>()));
+    footage_ = reinterpret_cast<Footage*>(selected->data().value<quintptr>());
+
+    emit FootageChanged(footage_);
   }
 }
 
@@ -40,11 +45,22 @@ void FootageComboBox::SetRoot(const Folder *p)
   clear();
 }
 
+Footage *FootageComboBox::SelectedFootage()
+{
+  return footage_;
+}
+
 void FootageComboBox::SetFootage(Footage *f)
 {
+  // Remove existing single item used to show the footage name
   clear();
 
-  addItem(f->name());
+  footage_ = f;
+
+  if (footage_ != nullptr) {
+    // Use combobox functions to show the footage name
+    addItem(footage_->name());
+  }
 }
 
 void FootageComboBox::TraverseFolder(const Folder *f, QMenu *m)

app/widget/footagecombobox/footagecombobox.h

@@ -17,6 +17,8 @@ public:
 
   void SetRoot(const Folder *p);
 
+  Footage* SelectedFootage();
+
 public slots:
   void SetFootage(Footage* f);
 
@@ -27,6 +29,8 @@ private:
   void TraverseFolder(const Folder *f, QMenu* m);
 
   const Folder* root_;
+
+  Footage* footage_;
 };
 
 #endif // FOOTAGECOMBOBOX_H

app/widget/nodeparamview/nodeparamviewitem.cpp

@@ -156,6 +156,7 @@ void NodeParamViewItemTitleBar::paintEvent(QPaintEvent *event)
   QPainter p(this);
 
   // Draw bottom border using text color
+  int bottom = height() - 1;
   p.setPen(palette().text().color());
-  p.drawLine(0, height() - 1, width(), height() - 1);
+  p.drawLine(0, bottom, width(), bottom);
 }

app/widget/nodeparamview/nodeparamviewwidgetbridge.cpp

@@ -4,6 +4,7 @@
 #include <QLineEdit>
 #include <QCheckBox>
 
+#include "node/node.h"
 #include "widget/footagecombobox/footagecombobox.h"
 
 // FIXME: Test code only
@@ -79,7 +80,8 @@ void NodeParamViewWidgetBridge::CreateWidgets()
     // Pretty hacky way of getting the root folder for this node's sequence
     ProjectPanel* pp = olive::panel_focus_manager->MostRecentlyFocused<ProjectPanel>();
     footage_combobox->SetRoot(pp->project()->root());
-
+    footage_combobox->SetFootage(Node::ValueToPtr<Footage>(input_->get_value(Now())));
+    connect(footage_combobox, SIGNAL(FootageChanged(Footage*)), this, SLOT(WidgetCallback()));
     // End test code
 
     widgets_.append(footage_combobox);
@@ -89,6 +91,12 @@ void NodeParamViewWidgetBridge::CreateWidgets()
   }
 }
 
+rational NodeParamViewWidgetBridge::Now()
+{
+  // FIXME: Actually implement this
+  return 0;
+}
+
 void NodeParamViewWidgetBridge::WidgetCallback()
 {
   switch (input_->inputs().first()) {
@@ -132,8 +140,8 @@ void NodeParamViewWidgetBridge::WidgetCallback()
   case NodeParam::kFootage:
   {
     // Widget is a FootageComboBox
-    //FootageComboBox* footage_combobox = static_cast<FootageComboBox*>(sender());
-
+    FootageComboBox* footage_combobox = static_cast<FootageComboBox*>(sender());
+    input_->set_value(Now(), Node::PtrToValue(footage_combobox->SelectedFootage()));
     break;
   }
   }

app/widget/nodeparamview/nodeparamviewwidgetbridge.h

@@ -20,6 +20,8 @@ private:
 
   void CreateWidgets();
 
+  rational Now();
+
 private slots:
   void WidgetCallback();
 };