foundational node UI work

ui/nodewidget.cpp

@@ -0,0 +1,46 @@
+#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);
+}