/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

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 3 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 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/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef __PLMAXLAYER__H
#define __PLMAXLAYER__H

#include "Max.h"
#include "plPlasmaMAXLayer.h"

class ClassDesc2;
class IParamBlock2;
class Bitmap;

ClassDesc2* GetLayerTexDesc();

extern TCHAR *GetString(int id);
extern HINSTANCE hInstance;

class plLayerTex : public plPlasmaMAXLayer
{
protected:
	// Parameter block
	IParamBlock2	*fBitmapPB;
	IParamBlock2	*fBasicPB;
	UVGen			*fUVGen;

	IMtlParams		*fMtlParams;

	TexHandle *fTexHandle;
	TimeValue fTexTime;

	Bitmap *fBM;
	static ParamDlg *fUVGenDlg;
	Interval		fIValid;
   
	friend class BitmapDlgProc;

public:
	// Ref nums
	enum
	{
		kRefUVGen,
		kRefBasic, // DEAD, but left in for backwards compatability
		kRefBitmap,
	};

	// Block ID's
	enum
	{
		kBlkBasic, // DEAD
		kBlkBitmap,
	};

	plLayerTex();
	~plLayerTex();
	void DeleteThis() { delete this; }		

	//From MtlBase
	ParamDlg* CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp);
	BOOL SetDlgThing(ParamDlg* dlg);
	void Update(TimeValue t, Interval& valid);
	void Reset();
	Interval Validity(TimeValue t);
	ULONG LocalRequirements(int subMtlNum);

	//From Texmap
	RGBA EvalColor(ShadeContext& sc);
	float EvalMono(ShadeContext& sc);
	Point3 EvalNormalPerturb(ShadeContext& sc);

	// For displaying textures in the viewport
	BOOL SupportTexDisplay() { return TRUE; }
	void ActivateTexDisplay(BOOL onoff);
	BITMAPINFO *GetVPDisplayDIB(TimeValue t, TexHandleMaker& thmaker, Interval &valid, BOOL mono=FALSE, int forceW=0, int forceH=0);
	DWORD GetActiveTexHandle(TimeValue t, TexHandleMaker& thmaker);
protected:
	void IChanged();
	void IDiscardTexHandle();

public:
	void GetUVTransform(Matrix3 &uvtrans) { fUVGen->GetUVTransform(uvtrans); }
	int GetTextureTiling() { return  fUVGen->GetTextureTiling(); }
	int GetUVWSource() { return fUVGen->GetUVWSource(); }
	virtual int GetMapChannel () { return fUVGen->GetMapChannel(); }	// only relevant if above returns UVWSRC_EXPLICIT
	UVGen *GetTheUVGen() { return fUVGen; }
	
	//TODO: Return anim index to reference index
	int SubNumToRefNum(int subNum) { return subNum; }
	
	virtual BOOL	DiscardColor();
	virtual BOOL	DiscardAlpha();
	
	// Loading/Saving
	IOResult Load(ILoad *iload);
	IOResult Save(ISave *isave);

	//From Animatable
	Class_ID ClassID() { return LAYER_TEX_CLASS_ID; }		
	SClass_ID SuperClassID() { return TEXMAP_CLASS_ID; }
	void GetClassName(TSTR& s);

	RefTargetHandle Clone( RemapDir &remap );
	RefResult NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, 
		PartID& partID,  RefMessage message);

	int NumSubs();
	Animatable* SubAnim(int i); 
	TSTR SubAnimName(int i);

	// TODO: Maintain the number or references here 
	int NumRefs();
	RefTargetHandle GetReference(int i);
	void SetReference(int i, RefTargetHandle rtarg);
	
	int	NumParamBlocks();	// return number of ParamBlocks in this instance
	IParamBlock2* GetParamBlock(int i); // return i'th ParamBlock
	IParamBlock2* GetParamBlockByID(BlockID id); // return id'd ParamBlock
	
	bool HasAlpha(); // Checks if the bitmap for this layer has an alpha channel
	virtual Bitmap* GetBitmap(TimeValue t);
		
	const char *GetTextureName();
	
	// Accessors needed by the base class for the various bitmap related elements
	virtual Bitmap *GetMaxBitmap(int index = 0) { return fBM; }
	virtual PBBitmap *GetPBBitmap( int index = 0 ); 
	virtual int		GetNumBitmaps( void ) { return 1; }

	// Virtual function called by plBMSampler to get various things while sampling the layer's image
	virtual bool	GetSamplerInfo( plBMSamplerData *samplerData );

	// Backdoor for the texture find and replace util.  Assumes input has the correct aspect ratio and is power of 2.
	virtual void SetExportSize(int x, int y);
	
protected:
	virtual void ISetPBBitmap( PBBitmap *pbbm, int index = 0 ); 
	virtual void ISetMaxBitmap(Bitmap *bitmap, int index = 0) { fBM = bitmap; }

};

#endif // __PLMAXLAYER__H