terrainPolygonDrawer.h

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/*********************************************************************
** Copyright (c) 2006 MaK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: terrainPolygonDrawer.h,v $ $Revision: 1.3 $ $State: Exp $
*********************************************************************/


#ifndef TERRAINPOLYGONDRAWER_H
#define TERRAINPOLYGONDRAWER_H

#include "drawertdb/drawertdbDefines.h"
#include "drawertdb/terrainDrawer.h"

#include <QtGui/QColor>

class DtGroup;
class DtGdbNode;
class DtHomogeneousTransfMatrix;
class DtLevelOfDetail;
class DtBaseCoordinateSystem;
class DtFeature;
class DtFileNode;
class DtAllTypesPolygon;


typedef QColor (*DtPolygonColorFcn)(const DtAllTypesPolygon*, const DtViewportExtents* v, void* usr);

class DT_DLL_drawertdb DtTerrainPolygonDrawer : public DtTerrainDrawer
{
public:
   DtTerrainPolygonDrawer();
   DtTerrainPolygonDrawer(const DtTerrainPolygonDrawer&);

   virtual ~DtTerrainPolygonDrawer();

   const DtTerrainPolygonDrawer& operator=(const DtTerrainPolygonDrawer&);

   void setDrawBoundingVolumes(bool);
   bool drawBoundingVolumes() const;

   void setBoundingVolumesColor(const QColor&);
   const QColor& boundingVolumesColor() const;

   void setPolygonColorFcn(DtPolygonColorFcn, void*);

   static DtTerrainPolygonDrawer* create();

   virtual void drawPolygons(const DtAllTypesPolygon *polygon,
         const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void colorPolygonByHeight(DtAllTypesPolygon& thePolygon, const DtViewportExtents* v);

protected:
   virtual void internalDraw(const DtTerrainDatabase*, const DtViewportExtents*, DtPrimitiveDrawer* painter);

protected:
   virtual void drawAllNodeTypes(const DtGdbNode* node,
      const DtHomogeneousTransfMatrix &matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawGroup(const DtGroup *group,
      const DtHomogeneousTransfMatrix &matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawLevelOfDetail(const DtLevelOfDetail *level_of_detail,
      const DtHomogeneousTransfMatrix &matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawCoordinateSystem(const DtBaseCoordinateSystem *cs,
      const DtHomogeneousTransfMatrix &matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawFeature(const DtFeature *moddef,
      const DtHomogeneousTransfMatrix &matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawFileNode(const DtFileNode* fileNode,
      const DtHomogeneousTransfMatrix& matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

   virtual void drawPolygon(const DtAllTypesPolygon *polygon,
         const DtHomogeneousTransfMatrix& matrix, const DtViewportExtents* v, DtPrimitiveDrawer* painter);

protected:
   virtual QColor polygonColor(const DtAllTypesPolygon*, const DtViewportExtents* v);

public:
   static QColor polygonSurfaceColor(const DtAllTypesPolygon*, const DtViewportExtents* v, void* usr);
   static QColor polygonSoilTypeColor(const DtAllTypesPolygon*, const DtViewportExtents* v, void* usr);
   static QColor polygonTerrainShadingSurfaceColor(const DtAllTypesPolygon*, const DtViewportExtents* v, void* usr);
   static QColor polygonTerrainShadingSoilTypeColor(const DtAllTypesPolygon*, const DtViewportExtents* v, void* usr);
   static QColor polygonTerrainShadingFromColor(const DtAllTypesPolygon* p, const QColor& baseColor, const DtViewportExtents* v);

protected:
   bool myDrawBoundingVolumes;
   QColor myBoundingVolumesColor;
   DtPolygonColorFcn myPolygonColorFcn;
   void* myPolygonColorData;
};

inline void DtTerrainPolygonDrawer::setDrawBoundingVolumes(bool b)
{
   myDrawBoundingVolumes = b;
}

inline bool DtTerrainPolygonDrawer::drawBoundingVolumes() const
{
   return myDrawBoundingVolumes;
}

inline void DtTerrainPolygonDrawer::setBoundingVolumesColor(const QColor& c)
{
   myBoundingVolumesColor = c;
}

inline const QColor& DtTerrainPolygonDrawer::boundingVolumesColor() const
{
   return myBoundingVolumesColor;
}

inline void DtTerrainPolygonDrawer::setPolygonColorFcn(DtPolygonColorFcn fcn, void* usr)
{
   myPolygonColorFcn = fcn;
   myPolygonColorData = usr;
}

#endif