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/******************************************************************************
* $Id: kmlsuperoverlaydataset.h
*
* Project: KmlSuperOverlay
* Purpose: Implements write support for KML superoverlay - KMZ.
* Author: Harsh Govind, harsh.govind@spadac.com
*
******************************************************************************
* Copyright (c) 2010, SPADAC Inc. <harsh.govind@spadac.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef KMLSUPEROVERLAYDATASET_H_INCLUDED
#define KMLSUPEROVERLAYDATASET_H_INCLUDED
#include "gdal_pam.h"
#include "gdal_priv.h"
#include "cpl_minixml.h"
#include <map>
CPL_C_START
void CPL_DLL GDALRegister_KMLSUPEROVERLAY(void);
CPL_C_END
/************************************************************************/
/* KmlSuperOverlayReadDataset */
/************************************************************************/
class KmlSuperOverlayRasterBand;
class KmlSuperOverlayReadDataset;
class LinkedDataset;
class LinkedDataset
{
public:
KmlSuperOverlayReadDataset* poDS;
LinkedDataset* psPrev;
LinkedDataset* psNext;
CPLString osSubFilename;
};
class KmlSuperOverlayReadDataset : public GDALDataset
{
friend class KmlSuperOverlayRasterBand;
int nFactor;
CPLString osFilename;
CPLXMLNode *psRoot;
CPLXMLNode *psDocument;
GDALDataset *poDSIcon;
double adfGeoTransform[6];
int nOverviewCount;
KmlSuperOverlayReadDataset** papoOverviewDS;
int bIsOvr;
KmlSuperOverlayReadDataset* poParent;
std::map<CPLString, LinkedDataset*> oMapChildren;
LinkedDataset *psFirstLink;
LinkedDataset *psLastLink;
protected:
virtual int CloseDependentDatasets();
public:
KmlSuperOverlayReadDataset();
virtual ~KmlSuperOverlayReadDataset();
static int Identify(GDALOpenInfo *);
static GDALDataset *Open(const char* pszFilename, KmlSuperOverlayReadDataset* poParent = NULL, int nRec = 0);
static GDALDataset *Open(GDALOpenInfo *);
virtual CPLErr GetGeoTransform( double * );
virtual const char *GetProjectionRef();
virtual CPLErr IRasterIO( GDALRWFlag eRWFlag,
int nXOff, int nYOff, int nXSize, int nYSize,
void * pData, int nBufXSize, int nBufYSize,
GDALDataType eBufType,
int nBandCount, int *panBandMap,
int nPixelSpace, int nLineSpace, int nBandSpace);
};
/************************************************************************/
/* KmlSuperOverlayRasterBand */
/************************************************************************/
class KmlSuperOverlayRasterBand: public GDALRasterBand
{
public:
KmlSuperOverlayRasterBand(KmlSuperOverlayReadDataset* poDS, int nBand);
protected:
virtual CPLErr IReadBlock( int, int, void * );
virtual CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
void *, int, int, GDALDataType,
int, int );
virtual GDALColorInterp GetColorInterpretation();
virtual int GetOverviewCount();
virtual GDALRasterBand *GetOverview(int);
};
#endif /* ndef KMLSUPEROVERLAYDATASET_H_INCLUDED */
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