module doodle.fig.diagram_elements;

private {
    import doodle.tk.geometry;
    import doodle.cairo.routines;
}

interface IDiagram {
    void add(DiagramElement element);
}

abstract class DiagramElement {
    Rectangle bounds() const;

    void draw(in Rectangle damage, scope Context cr) const;

    private {
        //GraphElement _container;                // FIXME use an interface to the container
    }
}

/*
   abstract class SemanticModelBridge {
   };

   abstract class GraphElement : DiagramElement {
// Link to model via bridge goes here
private {
SemanticModelBridge _modelBridge;
GraphConnector[] _anchorages;
}
}

class GraphConnector {
}

class GraphNode : GraphElement {
}

class GraphEdge : GraphElement {
private {
GraphConnector[2] _anchors;
}
}
 */

abstract class LeafElement : DiagramElement {
}

/*
   class TextElement : LeafElement {
   }
 */

abstract class GraphicPrimitive : LeafElement {
}

/*
   class PolylinePrimitive : GraphicPrimitive {
   private {
   Point[] _waypoints;
   }
   }
 */

class RectanglePrimitive : GraphicPrimitive {
    override void draw(in Rectangle damage, scope Context cr) const {
        rectangle(cr, bounds);
    }

    override Rectangle bounds() const { return _bounds; }

    private {
        Rectangle _bounds;
    }
}