effect UIs ported to nodes

olive.pro

@@ -190,7 +190,6 @@ SOURCES += \
     nodes/medianode.cpp \
     nodes/node.cpp \
     ui/nodeui.cpp \
-    ui/nodewidget.cpp \
     panels/effectspanel.cpp
 
 HEADERS += \
@@ -338,7 +337,6 @@ HEADERS += \
     nodes/medianode.h \
     nodes/node.h \
     ui/nodeui.h \
-    ui/nodewidget.h \
     panels/effectspanel.h
 
 FORMS +=

panels/effectspanel.cpp

@@ -151,7 +151,7 @@ void EffectsPanel::deselect_all_effects(QWidget* sender) {
 
   for (int i=0;i<open_effects_.size();i++) {
     if (open_effects_.at(i) != sender) {
-      open_effects_.at(i)->header_click(false, false);
+      open_effects_.at(i)->Deselect();
     }
   }
 

panels/nodeeditor.cpp

@@ -30,14 +30,37 @@ void NodeEditor::Retranslate()
 
 void NodeEditor::LoadEvent()
 {
+  nodes_.resize(open_effects_.size());
   for (int i=0;i<open_effects_.size();i++) {
-    scene_.addWidget(open_effects_.at(i));
+    EffectUI* effect_ui = open_effects_.at(i);
+
+    NodeUI* node_ui = new NodeUI();
+
+    effect_ui->SetNodeParent(node_ui);
+    effect_ui->SetSelectable(false);
+
+    node_ui->SetWidget(effect_ui);
+    node_ui->AddToScene(&scene_);
+
+    nodes_[i] = node_ui;
   }
 }
 
+void NodeEditor::ClearEvent()
+{
+  NodeUI* node;
+
+  foreach (node, nodes_) {
+    delete node;
+  }
+
+  nodes_.clear();
+}
+
 void NodeEditor::Scroll(qreal x, qreal y)
 {
   NodeUI* node;
+
   foreach (node, nodes_) {
     node->moveBy(x, y);
   }

panels/nodeeditor.h

@@ -16,6 +16,7 @@ public:
 
 protected:
   virtual void LoadEvent() override;
+  virtual void ClearEvent() override;
 
 private:
   QGraphicsScene scene_;

ui/collapsiblewidget.cpp

@@ -29,13 +29,16 @@
 #include <QMouseEvent>
 #include <QWidget>
 #include <QPainter>
+#include <QStyle>
+#include <QApplication>
 
 #include "ui/icons.h"
 #include "global/debug.h"
 
-CollapsibleWidget::CollapsibleWidget(QWidget* parent) : QWidget(parent) {
-  selected = false;
-
+CollapsibleWidget::CollapsibleWidget(QWidget* parent) :
+  QWidget(parent),
+  contents(nullptr)
+{
   layout = new QVBoxLayout(this);
   layout->setMargin(0);
   layout->setSpacing(0);
@@ -58,24 +61,13 @@ CollapsibleWidget::CollapsibleWidget(QWidget* parent) : QWidget(parent) {
   title_bar_layout->addStretch();
   layout->addWidget(title_bar);
 
-  connect(title_bar, SIGNAL(select(bool, bool)), this, SLOT(header_click(bool, bool)));
+  connect(title_bar, SIGNAL(select()), this, SLOT(Selected()));
 
   set_button_icon(true);
-
-  contents = nullptr;
 }
 
-void CollapsibleWidget::header_click(bool s, bool deselect) {
-  selected = s;
-  title_bar->selected = s;
-  if (s) {
-    QPalette p = title_bar->palette();
-    p.setColor(QPalette::Background, QColor(255, 255, 255, 64));
-    title_bar->setPalette(p);
-  } else {
-    title_bar->setPalette(palette());
-  }
-  if (deselect) emit deselect_others(this);
+void CollapsibleWidget::Selected() {
+  emit deselect_others(this);
 }
 
 bool CollapsibleWidget::IsFocused() {
@@ -96,7 +88,17 @@ void CollapsibleWidget::SetExpanded(bool s)
 
 bool CollapsibleWidget::IsSelected()
 {
-  return selected;
+  return title_bar->IsSelected();
+}
+
+void CollapsibleWidget::Deselect()
+{
+  title_bar->SetSelected(false);
+}
+
+void CollapsibleWidget::SetSelectable(bool s)
+{
+  title_bar->SetSelectable(s);
 }
 
 void CollapsibleWidget::set_button_icon(bool open) {
@@ -125,19 +127,65 @@ void CollapsibleWidget::on_visible_change() {
   SetExpanded(!IsExpanded());
 }
 
-CollapsibleWidgetHeader::CollapsibleWidgetHeader(QWidget* parent) : QWidget(parent), selected(false) {
+CollapsibleWidgetHeader::CollapsibleWidgetHeader(QWidget* parent) :
+  QWidget(parent),
+  selected_(false),
+  selectable_(true)
+{
   setContextMenuPolicy(Qt::CustomContextMenu);
 }
 
+bool CollapsibleWidgetHeader::IsSelected()
+{
+  return selected_;
+}
+
+void CollapsibleWidgetHeader::SetSelected(bool s, bool deselect_others)
+{
+  selected_ = s;
+
+  if (s) {
+    QPalette p = palette();
+    p.setColor(QPalette::Background, QColor(255, 255, 255, 64));
+    setPalette(p);
+  } else {
+    setPalette(qApp->palette());
+  }
+
+  if (deselect_others) {
+    emit select();
+  }
+}
+
+void CollapsibleWidgetHeader::SetSelectable(bool s)
+{
+  selectable_ = s;
+
+  if (!selectable_ && selected_) {
+    SetSelected(false);
+  }
+}
+
+bool CollapsibleWidgetHeader::event(QEvent *event)
+{
+  if (!selectable_
+      && (event->type() == QEvent::MouseButtonPress
+      || event->type() == QEvent::MouseButtonRelease
+      || event->type() == QEvent::MouseMove
+      || event->type() == QEvent::MouseButtonDblClick)
+      && QApplication::sendEvent(parent(), event)) {
+    return true;
+  }
+  return QWidget::event(event);
+}
+
 void CollapsibleWidgetHeader::mousePressEvent(QMouseEvent* event) {
-  if (selected) {
-    if ((event->modifiers() & Qt::ShiftModifier)) {
-      selected = false;
-      emit select(selected, false);
+  if (selected_) {
+    if (event->modifiers() & Qt::ShiftModifier) {
+      SetSelected(false);
     }
   } else {
-    selected = true;
-    emit select(selected, !(event->modifiers() & Qt::ShiftModifier));
+    SetSelected(true, !(event->modifiers() & Qt::ShiftModifier));
   }
 }
 

ui/collapsiblewidget.h

@@ -34,12 +34,20 @@ class CollapsibleWidgetHeader : public QWidget {
   Q_OBJECT
 public:
   CollapsibleWidgetHeader(QWidget* parent = nullptr);
-  bool selected;
+
+  bool IsSelected();
+  void SetSelected(bool s, bool deselect_others = false);
+
+  void SetSelectable(bool s);
 protected:
-  void mousePressEvent(QMouseEvent* event);
-  void paintEvent(QPaintEvent *event);
+  virtual bool event(QEvent *event) override;
+  virtual void mousePressEvent(QMouseEvent* event) override;
+  virtual void paintEvent(QPaintEvent *event) override;
 signals:
-  void select(bool, bool);
+  void select();
+private:
+  bool selected_;
+  bool selectable_;
 };
 
 class CollapsibleWidget : public QWidget
@@ -53,13 +61,15 @@ public:
   bool IsFocused();
   bool IsExpanded();
   void SetExpanded(bool s);
+
   bool IsSelected();
+  void Deselect();
+  void SetSelectable(bool s);
 protected:
   QCheckBox* enabled_check;
   CollapsibleWidgetHeader* title_bar;
   QWidget* contents;
 private:
-  bool selected;
   QLabel* header;
   QVBoxLayout* layout;
   QPushButton* collapse_button;
@@ -75,7 +85,7 @@ private slots:
   void on_visible_change();
 
 public slots:
-  void header_click(bool s, bool deselect);
+  void Selected();
 };
 
 #endif // COLLAPSIBLEWIDGET_H

ui/effectui.cpp

@@ -30,7 +30,8 @@
 #include "panels/panels.h"
 
 EffectUI::EffectUI(Effect* e) :
-  effect_(e)
+  effect_(e),
+  node_parent_(nullptr)
 {
   Q_ASSERT(e != nullptr);
 
@@ -89,6 +90,8 @@ EffectUI::EffectUI(Effect* e) :
   ui->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Maximum);
   SetContents(ui);
 
+  setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Maximum);
+
   SetExpanded(e->IsExpanded());
   connect(this, SIGNAL(visibleChanged(bool)), e, SLOT(SetExpanded(bool)));
 
@@ -276,6 +279,31 @@ bool EffectUI::IsAttachedToClip(Clip *c)
   return false;
 }
 
+void EffectUI::SetNodeParent(NodeUI *parent)
+{
+  node_parent_ = parent;
+}
+
+void EffectUI::resizeEvent(QResizeEvent *event)
+{
+  if (node_parent_ != nullptr) {
+    node_parent_->Resize(event->size());
+  }
+}
+
+bool EffectUI::event(QEvent *event)
+{
+  if (node_parent_ != nullptr
+      && (event->type() == QEvent::MouseButtonPress
+      || event->type() == QEvent::MouseButtonRelease
+      || event->type() == QEvent::MouseMove
+      || event->type() == QEvent::MouseButtonDblClick)
+      && node_parent_->scene()->sendEvent(node_parent_, event)) {
+    return true;
+  }
+  return CollapsibleWidget::event(event);
+}
+
 QWidget *EffectUI::Widget(int row, int field)
 {
   return widgets_.at(row).at(field);

ui/effectui.h

@@ -23,6 +23,7 @@
 
 #include "collapsiblewidget.h"
 #include "effects/effect.h"
+#include "ui/nodeui.h"
 
 /**
  * @brief The EffectUI class
@@ -131,6 +132,12 @@ public:
    */
   bool IsAttachedToClip(Clip* c);
 
+  void SetNodeParent(NodeUI* parent);
+
+protected:
+  virtual void resizeEvent(QResizeEvent* event) override;
+  virtual bool event(QEvent* event) override;
+
 signals:
   /**
    * @brief Cut signal
@@ -195,6 +202,11 @@ private:
    */
   QVector<KeyframeNavigator*> keyframe_navigators_;
 
+  /**
+   * @brief Internal reference to node parent
+   */
+  NodeUI* node_parent_;
+
   /**
    * @brief Attach a KeyframeNavigator object to an EffectRow.
    *

ui/nodeui.cpp

@@ -10,33 +10,55 @@
 #include <QStyleOptionGraphicsItem>
 #include <QPainter>
 
+const int kRoundedRectRadius = 5;
+
 NodeUI::NodeUI() :
-  central_widget_(this)
+  central_widget_(nullptr)
 {
   setFlag(QGraphicsItem::ItemIsMovable, true);
   setFlag(QGraphicsItem::ItemIsSelectable, true);
 }
 
+NodeUI::~NodeUI()
+{
+  if (scene() != nullptr) {
+    scene()->removeItem(proxy_);
+    scene()->removeItem(this);
+  }
+}
+
 void NodeUI::AddToScene(QGraphicsScene *scene)
 {
   scene->addItem(this);
 
-  QGraphicsProxyWidget* proxy = scene->addWidget(&central_widget_);
-  proxy->setPos(pos());
-  proxy->setParentItem(this);
+  if (central_widget_ != nullptr) {
+    proxy_ = scene->addWidget(central_widget_);
+    proxy_->setPos(pos() + QPoint(kRoundedRectRadius, kRoundedRectRadius));
+    proxy_->setParentItem(this);
+  }
 }
 
 void NodeUI::Resize(const QSize &s)
 {
   QRectF rectangle = rect();
 
-  rectangle.setSize(s);
+  rectangle.setSize(s + 2 * QSize(kRoundedRectRadius, kRoundedRectRadius));
+
+  path_ = QPainterPath();
+  path_.addRoundedRect(rectangle, kRoundedRectRadius, kRoundedRectRadius);
 
   setRect(rectangle);
 }
 
+void NodeUI::SetWidget(QWidget *widget)
+{
+  central_widget_ = widget;
+}
+
 void NodeUI::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
 {
+  Q_UNUSED(widget)
+
   QPalette palette = qApp->palette();
 
   if (option->state & QStyle::State_Selected) {
@@ -45,11 +67,5 @@ void NodeUI::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QW
     painter->setPen(palette.base().color());
   }
   painter->setBrush(palette.window());
-
-  QRectF r = rect();
-  r.setX(r.x() - 1);
-  r.setY(r.y() - 1);
-  r.setRight(r.right() + 1);
-  r.setBottom(r.bottom() + 1);
-  painter->drawRect(r);
+  painter->drawPath(path_);
 }

ui/nodeui.h

@@ -4,18 +4,20 @@
 #include <QWidget>
 #include <QGraphicsItem>
 
-#include "ui/nodewidget.h"
-
 class NodeUI : public QGraphicsRectItem {
 public:
   NodeUI();
+  virtual ~NodeUI() override;
+
   void AddToScene(QGraphicsScene* scene);
   void Resize(const QSize& s);
+  void SetWidget(QWidget* widget);
 protected:
   virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
-
 private:
-  NodeWidget central_widget_;
+  QWidget* central_widget_;
+  QGraphicsProxyWidget* proxy_;
+  QPainterPath path_;
 };
 
 #endif // NODEUI_H

ui/nodeview.cpp

@@ -10,8 +10,8 @@ NodeView::NodeView(QGraphicsScene *scene, QWidget *parent) :
   setMouseTracking(true);
   setWindowTitle(tr("Node Editor"));
 
-  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-  setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
+  setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
 }
 
 void NodeView::mousePressEvent(QMouseEvent *event)

ui/nodewidget.cpp

@@ -1,46 +0,0 @@
-#include "nodewidget.h"
-
-#include <QVBoxLayout>
-#include <QGridLayout>
-#include <QLabel>
-#include <QLineEdit>
-#include <QResizeEvent>
-#include <QGraphicsScene>
-
-#include "ui/nodeui.h"
-
-NodeWidget::NodeWidget(NodeUI *parent) :
-  parent_(parent)
-{
-  QVBoxLayout* layout = new QVBoxLayout(this);
-
-  QLabel* title = new QLabel("Node");
-  layout->addWidget(title);
-
-  QGridLayout* grid_layout = new QGridLayout();
-
-  grid_layout->addWidget(new QLabel("Option 1"), 0, 0);
-  grid_layout->addWidget(new QLineEdit("Value 1"), 0, 1);
-
-  grid_layout->addWidget(new QLabel("Option 2"), 1, 0);
-  grid_layout->addWidget(new QLineEdit("Value 2"), 1, 1);
-
-  layout->addLayout(grid_layout);
-}
-
-void NodeWidget::resizeEvent(QResizeEvent *event)
-{
-  parent_->Resize(event->size());
-}
-
-bool NodeWidget::event(QEvent *event)
-{
-  if ((event->type() == QEvent::MouseButtonPress
-      || event->type() == QEvent::MouseButtonRelease
-      || event->type() == QEvent::MouseMove
-      || event->type() == QEvent::MouseButtonDblClick)
-      && parent_->scene()->sendEvent(parent_, event)) {
-    return true;
-  }
-  return QWidget::event(event);
-}

ui/nodewidget.h

@@ -1,20 +0,0 @@
-#ifndef NODEWIDGET_H
-#define NODEWIDGET_H
-
-#include <QWidget>
-
-class NodeUI;
-
-class NodeWidget : public QWidget
-{
-  Q_OBJECT
-public:
-  NodeWidget(NodeUI *parent);
-protected:
-  virtual void resizeEvent(QResizeEvent *event) override;
-  virtual bool event(QEvent *event) override;
-private:
-  NodeUI* parent_;
-};
-
-#endif // NODEWIDGET_H