/****************************************************************************
* MeshLab                                                           o o     *
* A versatile mesh processing toolbox                             o     o   *
*                                                                _   O  _   *
* Copyright(C) 2005                                                \/)\/    *
* Visual Computing Lab                                            /\/|      *
* ISTI - Italian National Research Council                           |      *
*                                                                    \      *
* All rights reserved.                                                      *
*                                                                           *
* This program 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.                                       *
*                                                                           *
* This program 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 (http://www.gnu.org/licenses/gpl.txt)          *
* for more details.                                                         *
*                                                                           *
****************************************************************************/

#ifndef FILTER_IMG_PATCH_PARAM_PLUGIN_H
#define FILTER_IMG_PATCH_PARAM_PLUGIN_H




#include <QObject>
#include <common/plugins/interfaces/filter_plugin.h>
#include <vcg/math/similarity2.h>
#include "Patch.h"
#include <wrap/glw/glw.h>
class VisibleSet;


class FilterImgPatchParamPlugin : public QObject, public FilterPlugin
{
	Q_OBJECT
	MESHLAB_PLUGIN_IID_EXPORTER(FILTER_PLUGIN_IID)
	Q_INTERFACES( FilterPlugin )

	enum
	{
		FP_PATCH_PARAM_ONLY,
		FP_PATCH_PARAM_AND_TEXTURING,
		FP_RASTER_VERT_COVERAGE,
		FP_RASTER_FACE_COVERAGE
	};

	typedef std::set<CFaceO*> NeighbSet;
	glw::Context        *m_Context;


	void getNeighbors(
			CVertexO *v,
			NeighbSet &neighb) const;
	void getFaceNeighbors(
			CFaceO *f,
			NeighbSet &neighb) const;

	void boundaryOptimization(
			CMeshO &mesh,
			VisibleSet &faceVis,
			bool mostFrontFacing);

	int cleanIsolatedTriangles(
			CMeshO &mesh,
			VisibleSet &faceVis);

	int extractPatches(
			RasterPatchMap &patches,
			PatchVec &nullPatches,
			CMeshO &mesh,
			VisibleSet &faceVis,
			std::list<RasterModel*>& rasterList);

	void constructPatchBoundary(
			Patch &p,
			VisibleSet &faceVis );

	void computePatchUV(
			CMeshO &mesh,
			RasterModel *rm,
			PatchVec &patches);

	void mergeOverlappingPatches( PatchVec &patches );

	void patchPacking(
			RasterPatchMap &patches,
			int textureGutter,
			bool allowUVStretching);

	void patchBasedTextureParameterization(
			RasterPatchMap &patches,
			PatchVec &nullPatches,
			int meshid,
			CMeshO &mesh,
			std::list<RasterModel*>& rasterList,
			const RichParameterList& par);

	float computeTotalPatchArea(const RasterPatchMap& patches );
	int computePatchCount(const RasterPatchMap& patches );


public:
	FilterImgPatchParamPlugin();
	~FilterImgPatchParamPlugin();

	QString pluginName() const;
	QString filterName( ActionIDType id ) const;
	QString filterInfo( ActionIDType id ) const;

	FilterClass getClass(const QAction* act ) const;

	RichParameterList initParameterList(
			const QAction* act,
			const MeshDocument &md);

	int getRequirements(const QAction* act );
	bool requiresGLContext(const QAction* action) const;
	//virtual int postCondition( QAction *act ) const;

	std::map<std::string, QVariant> applyFilter(
			const QAction* action,
			const RichParameterList & parameters,
			MeshDocument &md,
			unsigned int& postConditionMask,
			vcg::CallBackPos * cb);

	FilterArity filterArity(const QAction *) const {return SINGLE_MESH;}
};




#endif // FILTER_IMG_PATCH_PARAM_PLUGIN_H
