// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010  Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.


#ifndef RZ_CTRL_QUAD_H
#define RZ_CTRL_QUAD_H

#include "ctrl_base.h"
#include "nel/gui/view_renderer.h"
#include "nel/misc/geom_ext.h"

/** Display of an arbitrary textured quad in the UI. The applied texture is filtered.
  * Unlike CViewBitmap, the texture is always scaled here, and this ui element coordinates
  * are driven by the quad vertices coordinates (see setQuad).
  *
  * Derives from CCtrlBase for tooltipping support
  *
  * \author Nicolas Vizerie
  * \author Nevrax France
  * \date 12/2005
  */
class CCtrlQuad : public CCtrlBase
{
public:
	enum TWrapMode { Repeat = 0, Clamp, CustomUVs, WrapModeCount };


	CCtrlQuad();

	// from CInterfaceElement
	bool parse(xmlNodePtr cur,CInterfaceGroup *parentGroup);
	virtual void updateCoords();
	virtual void draw();
	virtual uint32 getMemory() { return (uint32)(sizeof(*this)+_Id.size()); }

	// from CViewBase
	virtual sint32 getAlpha() const { return (sint32) _Color.A; }
	virtual void setAlpha (sint32 a);

	// texture
	void setTexture(const std::string &texName);
	std::string getTexture () const;

	// color
	void			setColorRGBA(NLMISC::CRGBA col) { _Color = col; }
	NLMISC::CRGBA	getColorRGBA() const { return _Color; }

	/** Set a new quad relative to parent pos
	  * x,y, w, h & hotspot are updated to fit the bounding rect of the quad
	  */
	void setQuad(const NLMISC::CQuad &quad);
	void setQuad(const NLMISC::CVector &start, const NLMISC::CVector &end, float thickness);
	/** Fit the given texture size (no hotspot for now, always centered)
      * NB : current texture is not modified.
	  */
	void setQuad(const std::string &texName, const NLMISC::CVector &pos, float angle = 0.f, float offCenter = 0.f);
	void setQuad(const NLMISC::CVector &pos, float radius, float angle = 0.f);
	const NLMISC::CQuad &getQuad() const { return _Quad; }

	void setAdditif(bool additif);
	bool getAdditif() const { return _Additif; }

	void setFiltered(bool filtered);
	bool getFiltered() const { return _Filtered; }

	void setPattern(float umin, float umax, TWrapMode wrapMode);

	/** Set uvs for each corners -> this will change the wrap mode to CustomUVs
      * Use setPattern(0.f, 0.f, CCtrlQuad::Repeat) to return to previous behavior
	  */
	void setCustomUVs(const NLMISC::CUV uvs[4]);


	// from CCtrlBase, no op by default
	virtual bool		handleEvent (const NLGUI::CEventDescriptor &event);

	// see if this control contains the given point (in parent coords)
	bool contains(const NLMISC::CVector2f &pos) const;

	// no capturable by default (just tooltip capability wanted)
	virtual	bool		isCapturable() const { return false; }


private:
	NLMISC::CRGBA				_Color;
	NLMISC::CQuad				_Quad;
	NLMISC::CQuadUV				_RealQuad; // absolute coords
	float						_ClampedUCorrection;
	CViewRenderer::CTextureId	_TextureId;	/// Accelerator
	bool						_Additif;
	bool						_Filtered;
	float						_UMin;
	float						_UMax;
	TWrapMode					_WrapMode;
	NLMISC::CUV					_CustomUVs[4];
};


#endif