shape: center node

app/node/generator/shape/shapenode.cpp

@@ -79,4 +79,11 @@ void ShapeNode::Value(const NodeValueRow &value, const NodeGlobals &globals, Nod
   table->Push(NodeValue::kShaderJob, QVariant::fromValue(job), this);
 }
 
+void ShapeNode::DrawGizmos(const NodeValueRow &row, const NodeGlobals &globals, QPainter *p)
+{
+  // Use offsets to make the appearance of values that start in the top left, even though we
+  // really anchor around the center
+  SetInputProperty(kPositionInput, QStringLiteral("offset"), globals.resolution() * 0.5);
+}
+
 }

app/node/generator/shape/shapenode.h

@@ -49,6 +49,13 @@ public:
   virtual ShaderCode GetShaderCode(const QString& shader_id) const override;
   virtual void Value(const NodeValueRow& value, const NodeGlobals &globals, NodeValueTable *table) const override;
 
+  virtual bool HasGizmos() const override
+  {
+    return true;
+  }
+
+  virtual void DrawGizmos(const NodeValueRow &row, const NodeGlobals &globals, QPainter *p) override;
+
   static QString kTypeInput;
 
 private:

app/node/generator/shape/shapenodebase.cpp

@@ -32,7 +32,7 @@ QString ShapeNodeBase::kColorInput = QStringLiteral("color_in");
 
 ShapeNodeBase::ShapeNodeBase()
 {
-  AddInput(kPositionInput, NodeValue::kVec2, QVector2D(10, 10));
+  AddInput(kPositionInput, NodeValue::kVec2, QVector2D(0, 0));
   AddInput(kSizeInput, NodeValue::kVec2, QVector2D(100, 100));
   AddInput(kColorInput, NodeValue::kColor, QVariant::fromValue(Color(1.0, 0.0, 0.0, 1.0)));
 }