various: began heavy rework of curve view to link closely with param view

app/panel/curve/curve.cpp

@@ -32,21 +32,14 @@ CurvePanel::CurvePanel(QWidget *parent) :
   Retranslate();
 }
 
-NodeInput *CurvePanel::GetInput() const
-{
-  return static_cast<CurveWidget*>(GetTimeBasedWidget())->GetInput();
-}
-
 void CurvePanel::DeleteSelected()
 {
   static_cast<CurveWidget*>(GetTimeBasedWidget())->DeleteSelected();
 }
 
-void CurvePanel::SetInput(NodeInput *input)
+void CurvePanel::SetNodes(const QList<Node *> &nodes)
 {
-  static_cast<CurveWidget*>(GetTimeBasedWidget())->SetInput(input);
-
-  Retranslate();
+  static_cast<CurveWidget*>(GetTimeBasedWidget())->SetNodes(nodes);
 }
 
 void CurvePanel::IncreaseTrackHeight()
@@ -66,13 +59,6 @@ void CurvePanel::Retranslate()
   TimeBasedPanel::Retranslate();
 
   SetTitle(tr("Curve Editor"));
-
-  NodeInput* connected_input = static_cast<CurveWidget*>(GetTimeBasedWidget())->GetInput();
-  if (connected_input) {
-    SetSubtitle(connected_input->name());
-  } else {
-    SetSubtitle(QString());
-  }
 }
 
 OLIVE_NAMESPACE_EXIT

app/panel/curve/curve.h

@@ -32,12 +32,10 @@ class CurvePanel : public TimeBasedPanel
 public:
   CurvePanel(QWidget* parent);
 
-  NodeInput* GetInput() const;
-
   virtual void DeleteSelected() override;
 
 public slots:
-  void SetInput(NodeInput* input);
+  void SetNodes(const QList<Node*>& nodes);
 
   virtual void IncreaseTrackHeight() override;
 

app/panel/param/param.cpp

@@ -28,9 +28,8 @@ ParamPanel::ParamPanel(QWidget* parent) :
   TimeBasedPanel(QStringLiteral("ParamPanel"), parent)
 {
   NodeParamView* view = new NodeParamView();
-  connect(view, &NodeParamView::InputDoubleClicked, this, &ParamPanel::CreateCurvePanel);
   connect(view, &NodeParamView::RequestSelectNode, this, &ParamPanel::RequestSelectNode);
-  //connect(view, &NodeParamView::FoundGizmos, this, &ParamPanel::FoundGizmos);
+  connect(view, &NodeParamView::NodeOrderChanged, this, &ParamPanel::NodeOrderChanged);
   SetTimeBasedWidget(view);
 
   Retranslate();
@@ -50,14 +49,6 @@ void ParamPanel::DeselectNodes(const QList<Node *> &nodes)
   Retranslate();
 }
 
-void ParamPanel::SetTimestamp(const int64_t &timestamp)
-{
-  TimeBasedPanel::SetTimestamp(timestamp);
-
-  // Ensure all CurvePanels are updated with this time too
-  ParamViewTimeChanged(timestamp);
-}
-
 void ParamPanel::DeleteSelected()
 {
   static_cast<NodeParamView*>(GetTimeBasedWidget())->DeleteSelected();
@@ -78,69 +69,4 @@ void ParamPanel::Retranslate()
   }
 }
 
-void ParamPanel::CreateCurvePanel(NodeInput *input)
-{
-  if (!input->is_keyframable()) {
-    return;
-  }
-
-  CurvePanel* panel = open_curve_panels_.value(input);
-
-  if (panel) {
-    panel->raise();
-    return;
-  }
-
-  NodeParamView* view = static_cast<NodeParamView*>(GetTimeBasedWidget());
-
-  panel = Core::instance()->main_window()->AppendCurvePanel();
-
-  panel->ConnectViewerNode(view->GetConnectedNode());
-  panel->SetTimestamp(view->GetTimestamp());
-  panel->SetInput(input);
-
-  connect(view, &NodeParamView::TimeChanged, this, &ParamPanel::ParamViewTimeChanged);
-  connect(panel, &CurvePanel::TimeChanged, this, &ParamPanel::CurvePanelTimeChanged);
-  connect(panel, &CurvePanel::CloseRequested, this, &ParamPanel::ClosingCurvePanel);
-
-  open_curve_panels_.insert(input, panel);
-}
-
-void ParamPanel::ClosingCurvePanel()
-{
-  CurvePanel* panel = static_cast<CurvePanel*>(sender());
-  open_curve_panels_.remove(panel->GetInput());
-}
-
-void ParamPanel::ParamViewTimeChanged(const int64_t &time)
-{
-  // Ensure all CurvePanels are updated with this time too
-  QHash<NodeInput*, CurvePanel*>::const_iterator i;
-
-  for (i=open_curve_panels_.begin(); i!=open_curve_panels_.end(); i++) {
-    // If connected viewers are the same, set the timestamp
-    if (i.value()->GetConnectedViewer() == GetConnectedViewer()) {
-      i.value()->SetTimestamp(time);
-    }
-  }
-}
-
-void ParamPanel::CurvePanelTimeChanged(const int64_t &time)
-{
-  GetTimeBasedWidget()->SetTimestamp(time);
-  emit GetTimeBasedWidget()->TimeChanged(time);
-
-  CurvePanel* src = static_cast<CurvePanel*>(sender());
-
-  // Ensure all CurvePanels are updated with this time too
-  QHash<NodeInput*, CurvePanel*>::const_iterator i;
-
-  for (i=open_curve_panels_.begin(); i!=open_curve_panels_.end(); i++) {
-    // If connected viewers are the same and the panel isn't the source, set the timestamp
-    if (i.value() != src && i.value()->GetConnectedViewer() == src->GetConnectedViewer()) {
-      i.value()->SetTimestamp(time);
-    }
-  }
-}
-
 OLIVE_NAMESPACE_EXIT

app/panel/param/param.h

@@ -37,31 +37,16 @@ public slots:
   void SelectNodes(const QList<Node*>& nodes);
   void DeselectNodes(const QList<Node*>& nodes);
 
-  virtual void SetTimestamp(const int64_t& timestamp) override;
-
   virtual void DeleteSelected() override;
 
 signals:
   void RequestSelectNode(const QList<Node*>& target);
 
-  void FoundGizmos(Node* node);
+  void NodeOrderChanged(const QList<Node*>& nodes);
 
 protected:
   virtual void Retranslate() override;
 
-private slots:
-  void CreateCurvePanel(NodeInput* input);
-
-  void ClosingCurvePanel();
-
-private:
-  QHash<NodeInput*, CurvePanel*> open_curve_panels_;
-
-private slots:
-  void ParamViewTimeChanged(const int64_t& time);
-
-  void CurvePanelTimeChanged(const int64_t& time);
-
 };
 
 OLIVE_NAMESPACE_EXIT

app/widget/CMakeLists.txt

@@ -29,9 +29,10 @@ add_subdirectory(manageddisplay)
 add_subdirectory(menu)
 add_subdirectory(nodecombobox)
 add_subdirectory(nodecopypaste)
-add_subdirectory(nodeview)
-add_subdirectory(nodeparamview)
 add_subdirectory(nodetableview)
+add_subdirectory(nodetreeview)
+add_subdirectory(nodeparamview)
+add_subdirectory(nodeview)
 add_subdirectory(panel)
 add_subdirectory(path)
 add_subdirectory(pixelsampler)

app/widget/curvewidget/curveview.cpp

@@ -75,6 +75,55 @@ void CurveView::SetTrackVisible(int track, bool visible)
   SetKeyframeTrackVisible(track, visible);
 }
 
+void CurveView::ConnectInput(NodeInput *input)
+{
+  if (connected_inputs_.contains(input)) {
+    // Input wasn't connected, do nothing
+    return;
+  }
+
+  // Add keyframes from this input
+  foreach (const NodeInput::KeyframeTrack& track, input->keyframe_tracks()) {
+    foreach (NodeKeyframePtr key, track) {
+      this->AddKeyframe(key);
+    }
+  }
+
+  // Append to the list
+  connected_inputs_.append(input);
+
+  // Connect add/remove signals
+  connect(input, &NodeInput::KeyframeAdded, this, &CurveView::AddKeyframe);
+  connect(input, &NodeInput::KeyframeRemoved, this, &CurveView::RemoveKeyframe);
+}
+
+void CurveView::DisconnectNode(Node *node)
+{
+  QList<NodeInput*> inputs = node->GetInputsIncludingArrays();
+
+  foreach (NodeInput* i, inputs) {
+    DisconnectInput(i);
+  }
+}
+
+void CurveView::DisconnectInput(NodeInput *input)
+{
+  if (!connected_inputs_.contains(input)) {
+    // Input wasn't connected, do nothing
+    return;
+  }
+
+  // Remove keyframes belonging to this input
+  RemoveKeyframesOfInput(input);
+
+  // Remove from the list
+  connected_inputs_.removeOne(input);
+
+  // Disconnect add/remove signals
+  disconnect(input, &NodeInput::KeyframeAdded, this, &CurveView::AddKeyframe);
+  disconnect(input, &NodeInput::KeyframeRemoved, this, &CurveView::RemoveKeyframe);
+}
+
 void CurveView::drawBackground(QPainter *painter, const QRectF &rect)
 {
   if (timebase().isNull()) {
@@ -273,10 +322,8 @@ QList<NodeKeyframe *> CurveView::GetKeyframesSortedByTime(int track)
 {
   QList<NodeKeyframe *> sorted;
 
-  QMap<NodeKeyframe*, KeyframeViewItem*>::const_iterator iterator;
-
-  for (iterator=item_map().begin();iterator!=item_map().end();iterator++) {
-    NodeKeyframe* key = iterator.key();
+  for (auto it=item_map().cbegin();it!=item_map().cend();it++) {
+    NodeKeyframe* key = it.key();
 
     if (key->track() != track) {
       continue;

app/widget/curvewidget/curveview.h

@@ -42,6 +42,12 @@ public:
 
   void SetTrackVisible(int track, bool visible);
 
+  void ConnectInput(NodeInput* input);
+
+  void DisconnectNode(Node* node);
+
+  void DisconnectInput(NodeInput* input);
+
 public slots:
   void AddKeyframe(NodeKeyframePtr key);
 
@@ -86,6 +92,8 @@ private:
 
   QVector<bool> track_visible_;
 
+  QList<NodeInput*> connected_inputs_;
+
   int track_count_;
 
 private slots:

app/widget/curvewidget/curvewidget.cpp

@@ -23,6 +23,7 @@
 #include <QEvent>
 #include <QLabel>
 #include <QScrollBar>
+#include <QSplitter>
 #include <QVBoxLayout>
 
 #include "core.h"
@@ -34,12 +35,23 @@
 OLIVE_NAMESPACE_ENTER
 
 CurveWidget::CurveWidget(QWidget *parent) :
-  TimeBasedWidget(parent),
-  input_(nullptr),
-  bridge_(nullptr)
+  TimeBasedWidget(parent)
 {
-  QVBoxLayout* layout = new QVBoxLayout(this);
+  QHBoxLayout* outer_layout = new QHBoxLayout(this);
+
+  QSplitter* splitter = new QSplitter();
+  outer_layout->addWidget(splitter);
+
+  tree_view_ = new NodeTreeView();
+  tree_view_->SetOnlyShowKeyframable(true);
+  connect(tree_view_, &NodeTreeView::NodeEnableChanged, this, &CurveWidget::NodeEnabledChanged);
+  connect(tree_view_, &NodeTreeView::InputEnableChanged, this, &CurveWidget::InputEnabledChanged);
+  splitter->addWidget(tree_view_);
+
+  QWidget* workarea = new QWidget();
+  QVBoxLayout* layout = new QVBoxLayout(workarea);
   layout->setMargin(0);
+  splitter->addWidget(workarea);
 
   QHBoxLayout* top_controls = new QHBoxLayout();
 
@@ -92,12 +104,8 @@ CurveWidget::CurveWidget(QWidget *parent) :
   view_->setHorizontalScrollBar(scrollbar());
   connect(view_->horizontalScrollBar(), &QScrollBar::valueChanged, ruler(), &TimeRuler::SetScroll);
 
-  widget_bridge_layout_ = new QHBoxLayout();
-  widget_bridge_layout_->addStretch();
-  input_label_ = new QLabel();
-  widget_bridge_layout_->addWidget(input_label_);
-  widget_bridge_layout_->addStretch();
-  layout->addLayout(widget_bridge_layout_);
+  // Disable collapsing the main curve view (but allow collapsing the tree)
+  splitter->setCollapsible(1, false);
 
   SetScale(120.0);
 }
@@ -108,71 +116,6 @@ CurveWidget::~CurveWidget()
   view_->Clear();
 }
 
-NodeInput *CurveWidget::GetInput() const
-{
-  return input_;
-}
-
-void CurveWidget::SetInput(NodeInput *input)
-{
-  if (bridge_) {
-    foreach (QWidget* bridge_widget, bridge_->widgets()) {
-      bridge_widget->deleteLater();
-    }
-    bridge_->deleteLater();
-    bridge_ = nullptr;
-  }
-
-  foreach (QCheckBox* box, checkboxes_) {
-    box->deleteLater();
-  }
-  checkboxes_.clear();
-
-  if (input_) {
-    disconnect(input_, &NodeInput::KeyframeAdded, view_, &CurveView::AddKeyframe);
-    disconnect(input_, &NodeInput::KeyframeRemoved, view_, &CurveView::RemoveKeyframe);
-  }
-
-  view_->Clear();
-
-  input_ = input;
-  key_control_->SetInput(input_);
-
-  if (input_) {
-    view_->SetTrackCount(input_->get_number_of_keyframe_tracks());
-
-    bridge_ = new NodeParamViewWidgetBridge(input_, this);
-
-    bridge_->SetTimeTarget(GetTimeTarget());
-
-    for (int i=0;i<bridge_->widgets().size();i++) {
-      // Insert between two stretches to center the widget
-      QCheckBox* checkbox = new QCheckBox();
-      checkbox->setChecked(true);
-      widget_bridge_layout_->insertWidget(2 + i*2, checkbox);
-      checkboxes_.append(checkbox);
-      connect(checkbox, &QCheckBox::clicked, this, [this](bool e){
-        view_->SetTrackVisible(checkboxes_.indexOf(static_cast<QCheckBox*>(sender())), e);
-      });
-
-      widget_bridge_layout_->insertWidget(2 + i*2 + 1, bridge_->widgets().at(i));
-    }
-
-    connect(input_, &NodeInput::KeyframeAdded, view_, &CurveView::AddKeyframe);
-    connect(input_, &NodeInput::KeyframeRemoved, view_, &CurveView::RemoveKeyframe);
-
-    foreach (const NodeInput::KeyframeTrack& track, input_->keyframe_tracks()) {
-      foreach (NodeKeyframePtr key, track) {
-        view_->AddKeyframe(key);
-      }
-    }
-  }
-
-  UpdateInputLabel();
-
-  QMetaObject::invokeMethod(view_, "ZoomToFit", Qt::QueuedConnection);
-}
-
 const double &CurveWidget::GetVerticalScale()
 {
   return view_->GetYScale();
@@ -188,12 +131,26 @@ void CurveWidget::DeleteSelected()
   view_->DeleteSelected();
 }
 
-void CurveWidget::changeEvent(QEvent *e)
+void CurveWidget::SetNodes(const QList<Node *> &nodes)
 {
-  if (e->type() == QEvent::LanguageChange) {
-    UpdateInputLabel();
+  tree_view_->SetNodes(nodes);
+
+  // Detect removed nodes
+  foreach (Node* n, nodes_) {
+    if (!nodes.contains(n)) {
+      view_->DisconnectNode(n);
     }
-  QWidget::changeEvent(e);
+  }
+
+  // Detect added nodes
+  foreach (Node* n, nodes) {
+    if (tree_view_->IsNodeEnabled(n) && !nodes_.contains(n)) {
+      ConnectNode(n);
+    }
+  }
+
+  // Save new node list
+  nodes_ = nodes;
 }
 
 void CurveWidget::TimeChangedEvent(const int64_t &timestamp)
@@ -223,10 +180,6 @@ void CurveWidget::TimeTargetChangedEvent(Node *target)
   key_control_->SetTimeTarget(target);
 
   view_->SetTimeTarget(target);
-
-  if (bridge_) {
-    bridge_->SetTimeTarget(target);
-  }
 }
 
 void CurveWidget::ConnectedNodeChanged(ViewerOutput *n)
@@ -234,15 +187,6 @@ void CurveWidget::ConnectedNodeChanged(ViewerOutput *n)
   SetTimeTarget(n);
 }
 
-void CurveWidget::UpdateInputLabel()
-{
-  if (input_) {
-    input_label_->setText(QStringLiteral("%1 :: %2:").arg(input_->parentNode()->Name(), input_->name()));
-  } else {
-    input_label_->clear();
-  }
-}
-
 void CurveWidget::SetKeyframeButtonEnabled(bool enable)
 {
   linear_button_->setEnabled(enable);
@@ -266,15 +210,26 @@ void CurveWidget::SetKeyframeButtonCheckedFromType(NodeKeyframe::Type type)
 
 void CurveWidget::UpdateBridgeTime(const int64_t &timestamp)
 {
-  if (!input_) {
-    return;
-  }
-
   rational time = Timecode::timestamp_to_time(timestamp, view_->timebase());
-  bridge_->SetTime(time);
   key_control_->SetTime(time);
 }
 
+void CurveWidget::ConnectNode(Node *n)
+{
+  QList<NodeInput*> inputs = n->GetInputsIncludingArrays();
+
+  foreach (NodeInput* i, inputs) {
+    if (tree_view_->IsInputEnabled(i)) {
+      view_->ConnectInput(i);
+    }
+  }
+}
+
+void CurveWidget::DisconnectNode(Node *n)
+{
+  view_->DisconnectNode(n);
+}
+
 void CurveWidget::SelectionChanged()
 {
   QList<QGraphicsItem*> selected = view_->scene()->selectedItems();
@@ -349,4 +304,22 @@ void CurveWidget::KeyControlRequestedTimeChanged(const rational &time)
   SetTimeAndSignal(Timecode::time_to_timestamp(time, view_->timebase()));
 }
 
+void CurveWidget::NodeEnabledChanged(Node* n, bool e)
+{
+  if (e) {
+    ConnectNode(n);
+  } else {
+    DisconnectNode(n);
+  }
+}
+
+void CurveWidget::InputEnabledChanged(NodeInput *i, bool e)
+{
+  if (e) {
+    view_->ConnectInput(i);
+  } else {
+    view_->DisconnectInput(i);
+  }
+}
+
 OLIVE_NAMESPACE_EXIT

app/widget/curvewidget/curvewidget.h

@@ -30,6 +30,7 @@
 #include "node/input.h"
 #include "widget/nodeparamview/nodeparamviewkeyframecontrol.h"
 #include "widget/nodeparamview/nodeparamviewwidgetbridge.h"
+#include "widget/nodetreeview/nodetreeview.h"
 #include "widget/timebased/timebased.h"
 
 OLIVE_NAMESPACE_ENTER
@@ -42,17 +43,15 @@ public:
 
   virtual ~CurveWidget() override;
 
-  NodeInput* GetInput() const;
-  void SetInput(NodeInput* input);
-
   const double& GetVerticalScale();
   void SetVerticalScale(const double& vscale);
 
   void DeleteSelected();
 
-protected:
-  virtual void changeEvent(QEvent *) override;
+public slots:
+  void SetNodes(const QList<Node*>& nodes);
 
+protected:
   virtual void TimeChangedEvent(const int64_t &) override;
   virtual void TimebaseChangedEvent(const rational &) override;
   virtual void ScaleChangedEvent(const double &) override;
@@ -62,8 +61,6 @@ protected:
   virtual void ConnectedNodeChanged(ViewerOutput* n) override;
 
 private:
-  void UpdateInputLabel();
-
   void SetKeyframeButtonEnabled(bool enable);
 
   void SetKeyframeButtonChecked(bool checked);
@@ -72,6 +69,12 @@ private:
 
   void UpdateBridgeTime(const int64_t& timestamp);
 
+  void ConnectNode(Node* n);
+
+  void DisconnectNode(Node* n);
+
+  NodeTreeView* tree_view_;
+
   QPushButton* linear_button_;
 
   QPushButton* bezier_button_;
@@ -80,18 +83,12 @@ private:
 
   CurveView* view_;
 
-  NodeInput* input_;
-
-  QLabel* input_label_;
-
-  QHBoxLayout* widget_bridge_layout_;
-
-  NodeParamViewWidgetBridge* bridge_;
-
   NodeParamViewKeyframeControl* key_control_;
 
   QList<QCheckBox*> checkboxes_;
 
+  QList<Node*> nodes_;
+
 private slots:
   void SelectionChanged();
 
@@ -99,6 +96,10 @@ private slots:
 
   void KeyControlRequestedTimeChanged(const rational& time);
 
+  void NodeEnabledChanged(Node* n, bool e);
+
+  void InputEnabledChanged(NodeInput* i, bool e);
+
 };
 
 OLIVE_NAMESPACE_EXIT

app/widget/keyframeview/keyframeviewbase.cpp

@@ -79,12 +79,17 @@ void KeyframeViewBase::RemoveKeyframesOfNode(Node *n)
   QList<NodeInput*> inputs = n->GetInputsIncludingArrays();
 
   foreach (NodeInput* i, inputs) {
+    RemoveKeyframesOfInput(i);
+  }
+}
+
+void KeyframeViewBase::RemoveKeyframesOfInput(NodeInput *i)
+{
   foreach (const NodeInput::KeyframeTrack& track, i->keyframe_tracks()) {
     foreach (NodeKeyframePtr key, track) {
       RemoveKeyframe(key);
     }
   }
-  }
 }
 
 void KeyframeViewBase::RemoveKeyframe(NodeKeyframePtr key)

app/widget/keyframeview/keyframeviewbase.h

@@ -42,6 +42,8 @@ public:
 
   void RemoveKeyframesOfNode(Node* n);
 
+  void RemoveKeyframesOfInput(NodeInput* i);
+
 public slots:
   void RemoveKeyframe(NodeKeyframePtr key);
 

app/widget/nodeparamview/nodeparamview.cpp

@@ -139,6 +139,7 @@ void NodeParamView::SelectNodes(const QList<Node *> &nodes)
 
       item->setAllowedAreas(Qt::LeftDockWidgetArea);
       item->setFeatures(QDockWidget::DockWidgetClosable | QDockWidget::DockWidgetMovable);
+      item->SetExpanded(node_expanded_state_.value(n, true));
 
       connect(item, &NodeParamViewItem::KeyframeAdded, keyframe_view_, &KeyframeView::AddKeyframe);
       connect(item, &NodeParamViewItem::KeyframeRemoved, keyframe_view_, &KeyframeView::RemoveKeyframe);
@@ -176,6 +177,9 @@ void NodeParamView::DeselectNodes(const QList<Node *> &nodes)
 
   foreach (Node* n, nodes) {
     if (!pinned_nodes_.contains(n)) {
+      // Store expanded state
+      node_expanded_state_.insert(n, items_.value(n)->IsExpanded());
+
       // Remove all keyframes from this node
       RemoveNode(n);
 

app/widget/nodeparamview/nodeparamview.h

@@ -115,6 +115,8 @@ private:
 
   QList<Node*> active_nodes_;
 
+  QMap<Node*, bool> node_expanded_state_;
+
 private slots:
   void ItemRequestedTimeChanged(const rational& time);
 

app/widget/nodetreeview/CMakeLists.txt

@@ -0,0 +1,22 @@
+# Olive - Non-Linear Video Editor
+# Copyright (C) 2019 Olive Team
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+set(OLIVE_SOURCES
+  ${OLIVE_SOURCES}
+  widget/nodetreeview/nodetreeview.h
+  widget/nodetreeview/nodetreeview.cpp
+  PARENT_SCOPE
+)

app/widget/nodetreeview/nodetreeview.cpp

@@ -0,0 +1,111 @@
+#include "nodetreeview.h"
+
+OLIVE_NAMESPACE_ENTER
+
+NodeTreeView::NodeTreeView(QWidget *parent) :
+  QTreeWidget(parent),
+  only_show_keyframable_(false)
+{
+  connect(this, &NodeTreeView::itemChanged, this, &NodeTreeView::ItemCheckStateChanged);
+
+  Retranslate();
+}
+
+bool NodeTreeView::IsNodeEnabled(Node *n) const
+{
+  return !disabled_nodes_.contains(n);
+}
+
+bool NodeTreeView::IsInputEnabled(NodeInput *i) const
+{
+  return !disabled_inputs_.contains(i);
+}
+
+void NodeTreeView::SetNodes(const QList<Node *> &nodes)
+{
+  nodes_ = nodes;
+
+  this->clear();
+
+  foreach (Node* n, nodes_) {
+    QTreeWidgetItem* node_item = new QTreeWidgetItem();
+    node_item->setText(0, n->Name());
+    node_item->setCheckState(0, disabled_nodes_.contains(n) ? Qt::Unchecked : Qt::Checked);
+    node_item->setData(0, kItemType, kItemTypeNode);
+    node_item->setData(0, kItemPointer, reinterpret_cast<quintptr>(n));
+
+    QList<NodeInput*> inputs = n->GetInputsIncludingArrays();
+    foreach (NodeInput* i, inputs) {
+      if (only_show_keyframable_ && !i->is_keyframable()) {
+        continue;
+      }
+
+      QTreeWidgetItem* input_item = new QTreeWidgetItem(node_item);
+      input_item->setText(0, i->name());
+      input_item->setCheckState(0, disabled_inputs_.contains(i) ? Qt::Unchecked : Qt::Checked);
+      input_item->setData(0, kItemType, kItemTypeInput);
+      input_item->setData(0, kItemPointer, reinterpret_cast<quintptr>(i));
+    }
+
+    // Add at the end to prevent unnecessary signalling while we're setting these objects up
+    if (node_item->childCount() > 0) {
+      this->addTopLevelItem(node_item);
+    } else {
+      delete node_item;
+    }
+  }
+}
+
+void NodeTreeView::changeEvent(QEvent *e)
+{
+  QTreeWidget::changeEvent(e);
+
+  if (e->type() == QEvent::LanguageChange) {
+    Retranslate();
+  }
+}
+
+void NodeTreeView::Retranslate()
+{
+  setHeaderLabel(tr("Nodes"));
+}
+
+void NodeTreeView::ItemCheckStateChanged(QTreeWidgetItem *item, int column)
+{
+  Q_UNUSED(column)
+
+  switch (item->data(0, kItemType).toInt()) {
+  case kItemTypeNode:
+  {
+    Node* n = reinterpret_cast<Node*>(item->data(0, kItemPointer).value<quintptr>());
+
+    if (item->checkState(0) == Qt::Checked) {
+      if (disabled_nodes_.contains(n)) {
+        disabled_nodes_.removeOne(n);
+        emit NodeEnableChanged(n, true);
+      }
+    } else if (!disabled_nodes_.contains(n)) {
+      disabled_nodes_.append(n);
+      emit NodeEnableChanged(n, false);
+    }
+    break;
+  }
+  case kItemTypeInput:
+  {
+    NodeInput* i = reinterpret_cast<NodeInput*>(item->data(0, kItemPointer).value<quintptr>());
+
+    if (item->checkState(0) == Qt::Checked) {
+      if (disabled_inputs_.contains(i)) {
+        disabled_inputs_.removeOne(i);
+        emit InputEnableChanged(i, true);
+      }
+    } else if (!disabled_inputs_.contains(i)) {
+      disabled_inputs_.append(i);
+      emit InputEnableChanged(i, false);
+    }
+    break;
+  }
+  }
+}
+
+OLIVE_NAMESPACE_EXIT

app/widget/nodetreeview/nodetreeview.h

@@ -0,0 +1,62 @@
+#ifndef NODETREEVIEW_H
+#define NODETREEVIEW_H
+
+#include <QTreeWidget>
+
+#include "node/node.h"
+
+OLIVE_NAMESPACE_ENTER
+
+class NodeTreeView : public QTreeWidget
+{
+  Q_OBJECT
+public:
+  NodeTreeView(QWidget *parent = nullptr);
+
+  bool IsNodeEnabled(Node* n) const;
+
+  bool IsInputEnabled(NodeInput* i) const;
+
+  void SetOnlyShowKeyframable(bool e)
+  {
+    only_show_keyframable_ = e;
+  }
+
+public slots:
+  void SetNodes(const QList<Node*>& nodes);
+
+signals:
+  void NodeEnableChanged(Node* n, bool e);
+
+  void InputEnableChanged(NodeInput* i, bool e);
+
+protected:
+  virtual void changeEvent(QEvent* e) override;
+
+private:
+  void Retranslate();
+
+  enum ItemType {
+    kItemTypeNode,
+    kItemTypeInput
+  };
+
+  static const int kItemType = Qt::UserRole;
+  static const int kItemPointer = Qt::UserRole + 1;
+
+  QList<Node*> nodes_;
+
+  QList<Node*> disabled_nodes_;
+
+  QList<NodeInput*> disabled_inputs_;
+
+  bool only_show_keyframable_;
+
+private slots:
+  void ItemCheckStateChanged(QTreeWidgetItem* item, int column);
+
+};
+
+OLIVE_NAMESPACE_EXIT
+
+#endif // NODETREEVIEW_H

app/window/mainwindow/mainwindow.cpp

@@ -72,6 +72,7 @@ MainWindow::MainWindow(QWidget *parent) :
   node_panel_ = PanelManager::instance()->CreatePanel<NodePanel>(this);
   footage_viewer_panel_ = PanelManager::instance()->CreatePanel<FootageViewerPanel>(this);
   param_panel_ = PanelManager::instance()->CreatePanel<ParamPanel>(this);
+  curve_panel_ = PanelManager::instance()->CreatePanel<CurvePanel>(this);
   table_panel_ = PanelManager::instance()->CreatePanel<NodeTablePanel>(this);
   sequence_viewer_panel_ = PanelManager::instance()->CreatePanel<SequenceViewerPanel>(this);
   pixel_sampler_panel_ = PanelManager::instance()->CreatePanel<PixelSamplerPanel>(this);
@@ -87,14 +88,25 @@ MainWindow::MainWindow(QWidget *parent) :
   connect(node_panel_, &NodePanel::NodesSelected, table_panel_, &NodeTablePanel::SelectNodes);
   connect(node_panel_, &NodePanel::NodesDeselected, table_panel_, &NodeTablePanel::DeselectNodes);
   connect(param_panel_, &ParamPanel::RequestSelectNode, node_panel_, &NodePanel::Select);
+
+  // Connect time signals together
   connect(sequence_viewer_panel_, &SequenceViewerPanel::TimeChanged, param_panel_, &ParamPanel::SetTimestamp);
   connect(sequence_viewer_panel_, &SequenceViewerPanel::TimeChanged, table_panel_, &NodeTablePanel::SetTimestamp);
+  connect(sequence_viewer_panel_, &SequenceViewerPanel::TimeChanged, curve_panel_, &NodeTablePanel::SetTimestamp);
   connect(param_panel_, &ParamPanel::TimeChanged, sequence_viewer_panel_, &SequenceViewerPanel::SetTimestamp);
   connect(param_panel_, &ParamPanel::TimeChanged, table_panel_, &NodeTablePanel::SetTimestamp);
-  connect(param_panel_, &ParamPanel::FoundGizmos, sequence_viewer_panel_, &SequenceViewerPanel::SetGizmos);
+  connect(param_panel_, &ParamPanel::TimeChanged, curve_panel_, &NodeTablePanel::SetTimestamp);
+  connect(curve_panel_, &ParamPanel::TimeChanged, sequence_viewer_panel_, &SequenceViewerPanel::SetTimestamp);
+  connect(curve_panel_, &ParamPanel::TimeChanged, table_panel_, &NodeTablePanel::SetTimestamp);
+  connect(curve_panel_, &ParamPanel::TimeChanged, param_panel_, &NodeTablePanel::SetTimestamp);
+
+  // Connect node order signals
+  connect(param_panel_, &ParamPanel::NodeOrderChanged, curve_panel_, &CurvePanel::SetNodes);
+
   connect(PanelManager::instance(), &PanelManager::FocusedPanelChanged, this, &MainWindow::FocusedPanelChanged);
 
   sequence_viewer_panel_->ConnectTimeBasedPanel(param_panel_);
+  sequence_viewer_panel_->ConnectTimeBasedPanel(curve_panel_);
 
   footage_viewer_panel_->ConnectPixelSamplerPanel(pixel_sampler_panel_);
   sequence_viewer_panel_->ConnectPixelSamplerPanel(pixel_sampler_panel_);
@@ -240,26 +252,6 @@ ScopePanel *MainWindow::AppendScopePanel()
   return AppendFloatingPanelInternal<ScopePanel>(scope_panels_);
 }
 
-CurvePanel *MainWindow::AppendCurvePanel()
-{
-  CurvePanel* p = AppendFloatingPanelInternal<CurvePanel>(curve_panels_);
-
-  sequence_viewer_panel_->ConnectTimeBasedPanel(p);
-
-  return p;
-
-  /*connect(panel, &TimelinePanel::TimeChanged, curve_panel_, &CurvePanel::SetTime);
-  connect(curve_panel_, &CurvePanel::TimeChanged, panel, &TimelinePanel::SetTime);
-  connect(param_panel_, &ParamPanel::SelectedInputChanged, curve_panel_, &CurvePanel::SetInput);
-  connect(param_panel_, &ParamPanel::TimebaseChanged, curve_panel_, &CurvePanel::SetTimebase);
-  connect(param_panel_, &ParamPanel::TimeTargetChanged, curve_panel_, &CurvePanel::SetTimeTarget);
-  connect(param_panel_, &ParamPanel::TimeChanged, curve_panel_, &CurvePanel::SetTime);
-  connect(curve_panel_, &CurvePanel::TimeChanged, sequence_viewer_panel_, &SequenceViewerPanel::SetTime);
-  connect(curve_panel_, &CurvePanel::TimeChanged, param_panel_, &ParamPanel::SetTime);
-  sequence_viewer_panel_->ConnectTimeBasedPanel(curve_panel_);
-  connect(sequence_viewer_panel_, &SequenceViewerPanel::TimeChanged, curve_panel_, &CurvePanel::SetTime);*/
-}
-
 void MainWindow::SetFullscreen(bool fullscreen)
 {
   if (fullscreen) {
@@ -495,12 +487,14 @@ TimelinePanel* MainWindow::AppendTimelinePanel()
   TimelinePanel* panel = AppendPanelInternal<TimelinePanel>(timeline_panels_);
 
   connect(panel, &PanelWidget::CloseRequested, this, &MainWindow::TimelineCloseRequested);
+  connect(panel, &TimelinePanel::TimeChanged, curve_panel_, &ParamPanel::SetTimestamp);
   connect(panel, &TimelinePanel::TimeChanged, param_panel_, &ParamPanel::SetTimestamp);
   connect(panel, &TimelinePanel::TimeChanged, table_panel_, &NodeTablePanel::SetTimestamp);
   connect(panel, &TimelinePanel::TimeChanged, sequence_viewer_panel_, &SequenceViewerPanel::SetTimestamp);
   connect(panel, &TimelinePanel::BlocksSelected, node_panel_, &NodePanel::SelectBlocks);
   connect(panel, &TimelinePanel::BlocksDeselected, node_panel_, &NodePanel::DeselectBlocks);
   connect(param_panel_, &ParamPanel::TimeChanged, panel, &TimelinePanel::SetTimestamp);
+  connect(curve_panel_, &ParamPanel::TimeChanged, panel, &TimelinePanel::SetTimestamp);
   connect(sequence_viewer_panel_, &SequenceViewerPanel::TimeChanged, panel, &TimelinePanel::SetTimestamp);
 
   sequence_viewer_panel_->ConnectTimeBasedPanel(panel);
@@ -546,6 +540,7 @@ void MainWindow::TimelineFocused(ViewerOutput* viewer)
 {
   sequence_viewer_panel_->ConnectViewerNode(viewer);
   param_panel_->ConnectViewerNode(viewer);
+  curve_panel_->ConnectViewerNode(viewer);
 
   Sequence* seq = nullptr;
 
@@ -585,6 +580,10 @@ void MainWindow::SetDefaultLayout()
   tabifyDockWidget(footage_viewer_panel_, param_panel_);
   footage_viewer_panel_->raise();
 
+  curve_panel_->hide();
+  curve_panel_->setFloating(true);
+  addDockWidget(Qt::TopDockWidgetArea, curve_panel_);
+
   table_panel_->hide();
   table_panel_->setFloating(true);
   addDockWidget(Qt::TopDockWidgetArea, table_panel_);

app/window/mainwindow/mainwindow.h

@@ -70,8 +70,6 @@ public:
 
   ScopePanel* AppendScopePanel();
 
-  CurvePanel* AppendCurvePanel();
-
   enum ProgressStatus {
     kProgressNone,
     kProgressShow,
@@ -138,6 +136,7 @@ private:
   // Standard panels
   NodePanel* node_panel_;
   ParamPanel* param_panel_;
+  CurvePanel* curve_panel_;
   SequenceViewerPanel* sequence_viewer_panel_;
   FootageViewerPanel* footage_viewer_panel_;
   QList<ProjectPanel*> project_panels_;
@@ -146,7 +145,6 @@ private:
   QList<TimelinePanel*> timeline_panels_;
   AudioMonitorPanel* audio_monitor_panel_;
   TaskManagerPanel* task_man_panel_;
-  QList<CurvePanel*> curve_panels_;
   PixelSamplerPanel* pixel_sampler_panel_;
   QList<ScopePanel*> scope_panels_;
   NodeTablePanel* table_panel_;