
///////////////////////////////////////////////////////////
//                                                       //
//                         SAGA                          //
//                                                       //
//      System for Automated Geoscientific Analyses      //
//                                                       //
//                     Tool Library                      //
//                  Grid_Visualisation                   //
//                                                       //
//-------------------------------------------------------//
//                                                       //
//                  Grid_Color_Blend.h                   //
//                                                       //
//                 Copyright (C) 2003 by                 //
//                      Olaf Conrad                      //
//                                                       //
//-------------------------------------------------------//
//                                                       //
// This file is part of 'SAGA - System for Automated     //
// Geoscientific Analyses'. SAGA is free software; you   //
// can redistribute it and/or modify it under the terms  //
// of the GNU General Public License as published by the //
// Free Software Foundation, either version 2 of the     //
// License, or (at your option) any later version.       //
//                                                       //
// SAGA is distributed in the hope that it will be       //
// useful, but WITHOUT ANY WARRANTY; without even the    //
// implied warranty of MERCHANTABILITY or FITNESS FOR A  //
// PARTICULAR PURPOSE. See the GNU General Public        //
// License for more details.                             //
//                                                       //
// You should have received a copy of the GNU General    //
// Public License along with this program; if not, see   //
// <http://www.gnu.org/licenses/>.                       //
//                                                       //
//-------------------------------------------------------//
//                                                       //
//    e-mail:     oconrad@saga-gis.org                   //
//                                                       //
//    contact:    Olaf Conrad                            //
//                Institute of Geography                 //
//                University of Goettingen               //
//                Goldschmidtstr. 5                      //
//                37077 Goettingen                       //
//                Germany                                //
//                                                       //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
#ifndef HEADER_INCLUDED__Grid_Color_Blend_H
#define HEADER_INCLUDED__Grid_Color_Blend_H


///////////////////////////////////////////////////////////
//														 //
//                                                       //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
#include <saga_api/saga_api.h>


///////////////////////////////////////////////////////////
//														 //
//                                                       //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
class CGrid_Color_Blend : public CSG_Tool_Grid
{
public:
	CGrid_Color_Blend(void);

	virtual bool			needs_GUI				(void)	const	{	return( true );	}


protected:

	virtual int				On_Parameter_Changed	(CSG_Parameters *pParameters, CSG_Parameter *pParameter);
	virtual int				On_Parameters_Enable	(CSG_Parameters *pParameters, CSG_Parameter *pParameter);

	virtual bool			On_Execute				(void);


private:

	CSG_String				m_File;

	int						m_iFile, m_nFiles;

	double					m_Range_Min, m_Range_Max;

	CSG_Grid				*m_pGrid;

	CSG_Parameter_Grid_List	*m_pGrids;


	bool					_Set_Progress			(double Position, double Range);

	void					Blend					(int iGrid, bool bLoop);

	bool					Save_Frame				(void);
	bool					Save_Frames				(void);

};


///////////////////////////////////////////////////////////
//														 //
//                                                       //
//														 //
///////////////////////////////////////////////////////////

//---------------------------------------------------------
#endif // #ifndef HEADER_INCLUDED__Grid_Color_Blend_H
