nodetable: correctly update with time

app/widget/nodetableview/nodetableview.cpp

@@ -29,7 +29,8 @@
 OLIVE_NAMESPACE_ENTER
 
 NodeTableView::NodeTableView(QWidget* parent) :
-  QTreeWidget(parent)
+  QTreeWidget(parent),
+  last_set_node_(nullptr)
 {
   setColumnCount(3);
   setHeaderLabels({tr("Type"),
@@ -42,11 +43,23 @@ NodeTableView::NodeTableView(QWidget* parent) :
 
 void NodeTableView::SetNode(Node *n, const rational &time)
 {
-  clear();
+  if (last_set_node_ != n) {
+    // Clear everything if the node has changed
+    clear();
+  }
+  last_set_node_ = n;
 
   NodeTableTraverser traverser;
   NodeValueDatabase db = traverser.GenerateDatabase(n, TimeRange(time, time));
 
+  // Remove top items if necessary
+  for (int i=0;i<this->topLevelItemCount();i++) {
+    if (!db.contains(this->topLevelItem(i)->data(0, Qt::UserRole).toString())) {
+      delete this->takeTopLevelItem(i);
+      i--;
+    }
+  }
+
   NodeValueDatabase::const_iterator i;
 
   for (i=db.begin(); i!=db.end(); i++) {
@@ -58,17 +71,40 @@ void NodeTableView::SetNode(Node *n, const rational &time)
       continue;
     }
 
-    QTreeWidgetItem* top_item = new QTreeWidgetItem();
-    top_item->setText(0, input->name());
-    top_item->setFirstColumnSpanned(true);
-    this->addTopLevelItem(top_item);
+    QTreeWidgetItem* top_item = nullptr;
 
-    for (int j=table.Count()-1; j>=0; j--) {
-      const NodeValue& value = table.at(j);
+    for (int j=0;j<this->topLevelItemCount();j++) {
+      QTreeWidgetItem* compare = this->topLevelItem(j);
+
+      if (compare->data(0, Qt::UserRole).toString() == input->id()) {
+        top_item = compare;
+        break;
+      }
+    }
+
+    if (!top_item) {
+      top_item = new QTreeWidgetItem();
+      top_item->setText(0, input->name());
+      top_item->setData(0, Qt::UserRole, input->id());
+      top_item->setFirstColumnSpanned(true);
+      this->addTopLevelItem(top_item);
+    }
+
+    // Create children if necessary
+    while (top_item->childCount() < table.Count())  {
+      top_item->addChild(new QTreeWidgetItem());
+    }
+
+    // Remove children if necessary
+    while (top_item->childCount() > table.Count()) {
+      delete top_item->takeChild(top_item->childCount() - 1);
+    }
+
+    for (int j=0;j<table.Count();j++) {
+      const NodeValue& value = table.at(table.Count() - 1 - j);
 
       // Create item
-      QTreeWidgetItem* sub_item = new QTreeWidgetItem();
-      top_item->addChild(sub_item);
+      QTreeWidgetItem* sub_item = top_item->child(j);
 
       // Set data type name
       sub_item->setText(0, NodeParam::GetPrettyDataTypeName(value.type()));

app/widget/nodetableview/nodetableview.h

@@ -36,6 +36,9 @@ public:
 
   void SetMultipleNodeMessage();
 
+private:
+  Node* last_set_node_;
+
 };
 
 OLIVE_NAMESPACE_EXIT

app/widget/nodetableview/nodetablewidget.cpp

@@ -25,7 +25,8 @@
 OLIVE_NAMESPACE_ENTER
 
 NodeTableWidget::NodeTableWidget(QWidget* parent) :
-  TimeBasedWidget(parent)
+  TimeBasedWidget(parent),
+  node_(nullptr)
 {
   QVBoxLayout* layout = new QVBoxLayout(this);
   layout->setSpacing(0);
@@ -37,13 +38,35 @@ NodeTableWidget::NodeTableWidget(QWidget* parent) :
 
 void NodeTableWidget::SetNodes(const QList<Node *> &nodes)
 {
+  node_ = nullptr;
+
   if (nodes.isEmpty()) {
     view_->clear();
   } else if (nodes.size() == 1) {
-    view_->SetNode(nodes.first(), rational());
+    node_ = nodes.first();
+
+    ViewerOutput* viewer = node_->FindOutputNode<ViewerOutput>();
+    if (viewer) {
+      qDebug() << "Found timebase";
+      SetTimebase(viewer->video_params().time_base());
+    }
+
+    UpdateView();
   } else {
     view_->SetMultipleNodeMessage();
   }
 }
 
+void NodeTableWidget::TimeChangedEvent(const int64_t &)
+{
+  UpdateView();
+}
+
+void NodeTableWidget::UpdateView()
+{
+  if (node_) {
+    view_->SetNode(node_, GetTime());
+  }
+}
+
 OLIVE_NAMESPACE_EXIT

app/widget/nodetableview/nodetablewidget.h

@@ -33,9 +33,16 @@ public:
 
   void SetNodes(const QList<Node*>& nodes);
 
+protected:
+  virtual void TimeChangedEvent(const int64_t& ts) override;
+
 private:
+  void UpdateView();
+
   NodeTableView* view_;
 
+  Node* node_;
+
 };
 
 OLIVE_NAMESPACE_EXIT