CViewLayer.h

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/********************************************************************************
**  This file is part of the ICF Framework. Copyright (C) Witold Gantzke & Kirill Lepskiy
**  ICF Framework may be used under the terms of the LGPL License v. 2.1 by the Free Software Foundation.
********************************************************************************/
 
#ifndef iview_CLayerBase_included
#define iview_CLayerBase_included
 
 
// Qt includes
#include <QtCore/QVector>
 
// ICF includes
#include <iview/IViewLayer.h>
#include <iview/IShape.h>
 
 
namespace iview
{
 
 
class CViewLayer: virtual public IViewLayer
{
public:
    CViewLayer();
    virtual ~CViewLayer();
 
    // reimplemented (iview::IViewLayer)
    virtual void OnConnectView(IShapeView* viewPtr);
    virtual void OnDisconnectView(IShapeView* viewPtr);
    virtual IShapeView* GetViewPtr() const;
    virtual bool IsShapeConnected(IShape* shapePtr);
    virtual bool ConnectShape(IShape* shapePtr);
    virtual int GetShapesCount() const;
    virtual Shapes GetShapes() const;
    virtual void UpdateAllShapes(const istd::IChangeable::ChangeSet& changeSet);
    virtual void DisconnectAllShapes();
    virtual void DrawShapes(QPainter& drawContext);
    virtual bool IsVisible() const;
    virtual void SetVisible(bool state = true);
    
    // reimplemented (iview::IDisplay)
    virtual IDisplay* GetParentDisplayPtr() const;
    virtual const CScreenTransform& GetTransform() const;
    virtual i2d::CRect GetBoundingBox() const;
    virtual i2d::CRect GetClientRect() const;
    virtual const IColorSchema& GetColorSchema() const;
    virtual void OnAreaInvalidated(const i2d::CRect& prevArea, const i2d::CRect& newArea);
 
    // reimplemented (iview::IShapeObserver)
    virtual void OnChangeShape(IShape* shapePtr);
    virtual bool DisconnectShape(IShape* shapePtr);
 
    // reimplemented (iview::ITouchable)
    virtual TouchState IsTouched(istd::CIndex2d position) const;
    virtual QString GetShapeDescriptionAt(istd::CIndex2d position) const;
 
protected:
    struct ShapeWithBoundingBox
    {
        IShape* shapePtr;
        i2d::CRect box;
    };
    typedef QVector<ShapeWithBoundingBox> ShapeList;
 
    bool OnChangeShapeElement(ShapeList::iterator elementIter);
    
    void DisconnectShapeElement(ShapeList& map, ShapeList::iterator iter);
 
    void InvalidateBoundingBox();
    i2d::CRect& GetBoundingBoxRef() const;
    void SetBoundingBoxValid() const;
 
    virtual i2d::CRect RecalcAllShapes(const istd::IChangeable::ChangeSet& changeSet);
    virtual i2d::CRect CalcBoundingBox() const;
 
    ShapeList m_shapes;
 
private:
    IShapeView* m_viewPtr;
    bool m_isVisible;
 
    mutable i2d::CRect m_boundingBox;
    mutable bool m_isBoundingBoxValid;
};
 
 
// inline methods
 
inline bool CViewLayer::IsVisible() const
{
    return m_isVisible;
}
 
 
} // namespace iview
 
 
#endif // !iview_CLayerBase_included