Clean up of scene nodes to support 2d and non int positioning.

src/visual_elements/nodes/AbstractVisualNode.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include "SceneModel.h"
+#include "AbstractMesh.h"
+
+#include "Image.h"
+#include "Point.h"
+
+#include <memory>
+
+#include <iostream>
+
+struct SceneInfo;
+
+class AbstractVisualNode
+{
+public:
+    AbstractVisualNode(const Point& location, const std::string& name = {});
+
+    virtual ~AbstractVisualNode() = default;
+
+    void addChild(AbstractVisualNode* child);
+
+    virtual SceneItem* getSceneItem(std::size_t idx) const;
+
+    virtual std::size_t getNumSceneItems() const;
+
+    std::size_t getNumChildren() const;
+
+    const std::vector<AbstractVisualNode*>& getChildren() const;
+
+    const std::string& getName() const;
+
+    Image<unsigned char>* getImage() const;
+
+    bool getIsVisible() const;
+
+    void syncChildren(const std::vector<AbstractVisualNode*>& children);
+
+    void setIsVisible(bool isVisible);
+
+    void setName(const std::string& name);
+
+    void setLocation(const Point& loc);
+
+    virtual void update(SceneInfo* sceneInfo);
+
+protected:
+    Point mLocation;
+    std::vector<std::unique_ptr<SceneItem> > mSceneItems;
+    std::unique_ptr<Image<unsigned char> > mImage;
+
+    std::vector<AbstractVisualNode*> mChildren;
+
+    bool mIsVisible{true};
+    bool mTransformIsDirty{true};
+    std::string mName;
+};