boundarygraphblobvisualgeometrybuilder.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/

#pragma once

#include "gwnavruntime/visualsystem/ivisualgeometrybuilder.h"
#include "gwnavruntime/math/vec3f.h"
#include "gwnavgeneration/boundary/boundarytypes.h"
#include "gwnavgeneration/navraster/navrastertypes.h"

namespace Kaim
{

class VisualGeometryBuilder;
class BoundaryGraphBlob;
class BoundaryGraphBlobVertex;
class BoundaryGraphBlobEdge;
class BoundaryGraphBlobContour;
class BoundaryGraphBlobPolygon;
class BoundaryGraphBlobSimplifyPolyline;
class BoundaryGraphBlobSimplifiedHalfEdge;
class BoundaryGraphBlobSimplifiedContour;
class BoundaryGraphBlobSimplifiedPolygon;
class Color;


class BoundaryGraphBlobVisualGeometryBuilder : public IVisualGeometryBuilder
{
public:
    typedef BoundaryGraphBlobVertex             Vertex;
    typedef BoundaryGraphBlobEdge               Edge;
    typedef BoundaryGraphBlobContour            Contour;
    typedef BoundaryGraphBlobPolygon            Polygon;
    typedef BoundaryGraphBlobSimplifyPolyline   SimplifyPolyline;
    typedef BoundaryGraphBlobSimplifiedHalfEdge SimplifiedEdge;
    typedef BoundaryGraphBlobSimplifiedContour  SimplifiedContour;
    typedef BoundaryGraphBlobSimplifiedPolygon  SimplifiedPolygon;

public:
    enum EdgeColorScheme
    {
        FromEdgeType,
        FromContourWinding,
        FromPolygonIdx,
        FromPolygonColor
    };

    class EdgeVisualInfo
    {
    public:
        EdgeVisualInfo() :
            m_polygonColor(PixelColor_Unset), m_contourWinding(ContourWinding_Unset), m_polygonIdx(0) {}

    public:
        PixelColor m_polygonColor;
        ContourWinding m_contourWinding;
        KyUInt32 m_polygonIdx;
    };

public:
    BoundaryGraphBlobVisualGeometryBuilder(BoundaryGraphBlob* boundaryGraphBlob);
    virtual void DoBuild();

private:
    Vec3f GetVertexPos(const Vertex& vertex);

    void BuildStaticVerticesGeometry(Color color);
    void BuildNarrowVerticesGeometry(Color color);

    void BuildEdgeGeometry(const Edge& edge, EdgeVisualInfo& edgeVisualInfo);
    void BuildContourGeometry(const Contour& contour, EdgeVisualInfo& edgeVisualInfo);
    void BuildPolygonsGeometry();

    void BuildSimplifiedEdgeGeometry(const SimplifiedEdge& simplifiedEdge, EdgeVisualInfo& edgeVisualInfo);
    void BuildSimplifiedContourGeometry(const SimplifiedContour& simplifiedContour, EdgeVisualInfo& edgeVisualInfo);
    void BuildSimplifiedPolygonsGeometry();

    void BuildSimplifyPolylinesGeometry();
    void BuildSimplifySegmentGeometry(const Vertex& start, const Vertex& end,  KyUInt32 polylineIdx);

    Color GetEdgeColor(const EdgeVisualInfo& edgeVisualInfo, const BoundaryEdgeType& edgeType);

private:
    const BoundaryGraphBlob* m_graph;
    KyFloat32 m_rasterPrecision;
    EdgeColorScheme m_edgeColorScheme;
    const Vertex* m_vertices;
    const Edge* m_edges;
    const Contour* m_contours;
    const Polygon* m_polygons;
    const SimplifyPolyline* m_simplifyPolylines;
    const SimplifiedEdge* m_simplifiedEdges;
    const SimplifiedContour* m_simplifiedContours;
    const SimplifiedPolygon* m_simplifiedPolygons;

    KyFloat32 m_staticVerticesheight;
    KyFloat32 m_polygonsOffset; // the initial ones
    KyFloat32 m_simplifiedPolygonsOffset;
    KyFloat32 m_simplifyPolylineOffset;

    // TODO: instead of some display_this, display_that or level_of_detail.
    // We should have Group/Name to activate/deactivate checkboxes in the NavigationLab just as for display lists.
    bool m_displayNarrowVertices;
    bool m_displaySimplifyPolylines;
};


}