ImageLayer.h

//
// ImageLayer.h
//
// Copyright (c) 2002-2008 Virtual Terrain Project
// Free for all uses, see license.txt for details.
//

#ifndef IMAGELAYER_H
#define IMAGELAYER_H

class vtImage;

#include "Layer.h"


class vtImageLayer : public vtLayer
{
public:
    vtImageLayer();
    vtImageLayer(const DRECT &area, int xsize, int ysize,
        const vtProjection &proj);
    virtual ~vtImageLayer();

    // overrides for 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 &delta);

    // optional overrides
    bool SetExtent(const DRECT &rect);
    void GetPropertyText(wxString &str);

    vtImage *GetImage() { return m_pImage; }
    DPoint2 GetSpacing() const;
    bool ImportFromFile(const wxString &strFileName, bool progress_callback(int) = NULL);
    bool ImportFromDB(const char *szFileName, bool progress_callback(int) = NULL);
    void ReplaceColor(const RGBi &rgb1, const RGBi &rgb2);

protected:
    vtImage *m_pImage;
};

// Helper
int GetBitDepthUsingGDAL(const char *fname);
void MakeSampleOffsets(const DPoint2 cellsize, uint N, DLine2 &offsets);

#endif  // IMAGELAYER_H