RawLayer.h

//
// A raw data layer, suitable for storing and displaying the type of
// generic spatial data contained in a Shapefile.
//
// Copyright (c) 2001-2011 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef RAWLAYERH
#define RAWLAYERH

#include "vtdata/Features.h"
#include "Layer.h"

class vtRawLayer : public vtLayer
{
public:
    vtRawLayer();
    virtual ~vtRawLayer();

    void SetGeomType(OGRwkbGeometryType type);
    OGRwkbGeometryType GetGeomType();
    vtFeatureSet *GetFeatureSet() { return m_pSet; }
    void SetFeatureSet(vtFeatureSet *pSet) { m_pSet = pSet; }

    // implementation of vtLayer methods
    bool GetExtent(DRECT &rect);
    void DrawLayer(wxDC *pDC, vtScaledView *pView);
    bool TransformCoords(vtProjection &proj);
    bool OnSave(bool progress_callback(int) = NULL);
    bool OnLoad();
    bool AppendDataFrom(vtLayer *pL);
    void GetProjection(vtProjection &proj);
    void SetProjection(const vtProjection &proj);
    void Offset(const DPoint2 &p);
    void GetPropertyText(wxString &strIn);
    void OnLeftDown(BuilderView *pView, UIContext &ui);

    void AddPoint(const DPoint2 &p2);
    bool CreateFromOGRLayer(OGRLayer *pOGRLayer);
    bool ReadFeaturesFromWFS(const char *szServerURL, const char *layername);
    bool LoadWithOGR(const char *filename, bool progress_callback(int) = NULL);

    void ScaleHorizontally(double factor);
    void ScaleVertically(double factor);
    void OffsetVertically(double amount);

    void SetDrawStyle(const DrawStyle &style) { m_DrawStyle = style; }
    DrawStyle GetDrawStyle() { return m_DrawStyle; }

    vtProjection *GetAtProjection()
    {
        if (m_pSet)
            return &(m_pSet->GetAtProjection());
        else
            return NULL;
    }
    wxString GetLayerFilename()
    {
        if (m_pSet)
            return wxString(m_pSet->GetFilename(), wxConvUTF8);
        else
            return vtLayer::GetLayerFilename();
    }
    void SetLayerFilename(const wxString &fname)
    {
        if (m_pSet)
            m_pSet->SetFilename((const char *) fname.mb_str(wxConvUTF8));
        vtLayer::SetLayerFilename(fname);
    }

    void ReadGeoURL();
    bool ImportFromXML(const char *fname);

    // speed optimization
    void CreateIndex(int iSize);
    void FreeIndex();

protected:
    vtFeatureSet    *m_pSet;
    DrawStyle   m_DrawStyle;
    bool m_bExtentComputed;
    DRECT m_Extents;
};

#endif  // RAWLAYERH