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/********************************************************************
*
*	File:		fsCNativeTextSprite.h
*
*	Purpose:	bgfx retained text sprite - needs to be added
*				to a scene
*
*********************************************************************/

#ifndef fsCNativeTextSpriteehdr
#define fsCNativeTextSpriteehdr

#include <fsCore/fsBaseTypes.h>
#include <fsCore/fsRect.h>
#include <fsCore/fsStr.h>
#include <fsCore/fsSColour.h>

#include "src/components/fsITextSpriteComponent.h"
#include "fsINative.h"
#include "fsCBgfx2d.h"

class fsCFont;
class fsIFont;
class fsSColour;
class fsStr;


class fsCNativeTextSprite : public fsINative
{
	friend class fsCNativeTextSpriteRenderData;

public:

	void outlineSet(const fsSColour4B& pOutline, fsF32 pSize) const;
	void shadowSet(const fsSColour4B& pShadow, fsVec2d pOffset, fsF32 pBlurRadius) const;
	void glowSet(const fsSColour4B& pGlow) const;

	void alignmentSet(fsS32 pAlignH, fsS32 pAlignV);
	void initialise(const fsStr& pText, fsIFont* pFont);

	fsS32 stringWidthInPixelsGet() const;
	fsS32 stringHeightInPixelsGet() const;

	void formattingRectSizeSet(const fsRect& pFormattingRect);
	fsStr textGet() const;
	void textSet(const fsStr& pText);

	virtual ~fsCNativeTextSprite();<--- Destructor in derived class

protected:

	void renderDo() override;
	void colourSetDo(const fsSColour4B& pColour) override;

	fsCNativeTextSprite();

private:

	typedef fsITextSpriteComponent::eHORIZONTAL_ALIGNMENT fsTHorizontalAlign;
	typedef fsITextSpriteComponent::eVERTICAL_ALIGNMENT fsTVerticalAlign;

	struct fsSRect
	{
		fsF32 mX = 0;
		fsF32 mY = 0;
		fsF32 mWidth = 0;
		fsF32 mHeight = 0;
	};

	fsS32 lineCountGet(const char* pText) const;

	fsF32 lineStart(fsF32 pLineWidth) const;
	void drawTextBoxed(const char* pText, fsBool pWordWrap, const fsSColour4B& pTint);
	void glyphAdd(fsS32 pCodepoint, fsF32 pPenX, fsF32 pBaselineY, fsU32 pColourAbgr);
	fsF32 glyphWidthGet(fsS32 pCodepoint) const;
	void positionRecompute();

	fsTHorizontalAlign mHorizontalAlignment = fsTHorizontalAlign::eHALIGN_CENTRE;
	fsTVerticalAlign mVerticalAlignment = fsTVerticalAlign::eVALIGN_MIDDLE;

	fsRect mBoundingBox;
	fsStr mText;
	fsCFont* mFont;

	fsSRect mRect;
	fsSColour4B mTint;
};

#endif