www.pudn.com > FlashFormat.rar > FDTText.h

// Copyright © 1999 Middlesoft, Inc. All rights reserved.
// First Created By Lee Thomason.
// First Created On 09/08/1999.
// Last Modified On 11/09/1999.

/****************************************************************************************

				File Summary: FDTText.h

	This header-file contains the declarations of low-level text-related classes.
	All parent classes are in the parentheses:

		class FTextRecord;
		class FDTDefineEditText; (public FDT)
		class FDTDefineText; (public FDT)
		class FDTDefineText2; (public FDT)
		class FTextChangeRecord; (public FTextRecord)
		class FTextGlyphRecord; (public FTextRecord)

****************************************************************************************/

#ifndef _F_DEFINE_TEXT_H_
#define _F_DEFINE_TEXT_H_

#include "Macromedia.h"
#include "FDT.h"
#include "FSWFStream.h"
#include "FPrimitive.h"

class FGlyphEntry;

class FTextRecord {
public:
	virtual U32  MinAdvanceBits() = 0;	// the computed minimum # of bits to record the advance values
	virtual U32  MinCodeBits() = 0;		// the computed minimum # of bits to record the character code values
	virtual ~FTextRecord() {}

	// Because of multiple text records, the DefineText will specify the code and advance bits
	// when it writes.
	virtual void WriteToSWFStream(FSWFStream* _SWFStream, int codeBits, int advanceBits ) = 0;
};

// A flash object that defines a font's appearance

class FDTDefineEditText: public FDT{

public:

	FDTDefineEditText(FRect* _bounds, U8 _hasFont, U8 _hasMaxLength, U8 _hasTextColor, 
					  U8 _readOnly, U8 _password, U8 _multiline, U8 _wordWrap, U8 _hasText, 
					  U8 _useOutlines, U8 _border, U8 _noSelect, U8 _hasLayout, U16 _fontID,
					  U16 _fontHeight, FColor* _textColor, U16 _maxLength, U8 _alignment,
					  U16 _leftMargin, U16 _rightMargin, U16 _indent, U16 _leading, 
					  FString* _variableName, FString* _initialText);
	virtual ~FDTDefineEditText(void);
	U16 ID(void) { return characterID;}
	virtual void WriteToSWFStream(FSWFStream* _SWFStream);


private:
	
	FRect* bounds;
	U8 hasFont;
	U8 hasMaxLength;
	U8 hasTextColor;
	U8 readOnly;
	U8 password;
	U8 multiline;
	U8 wordWrap;
	U8 hasText;
	U8 useOutlines;
	U8 border;
	U8 noSelect;
	U8 hasLayout;
	U16 fontID;
	U16 fontHeight;
	FColor* textColor;
	U16 maxLength;
	U8 alignment;
	U16 leftMargin;
	U16 rightMargin;
	U16 indent;
	U16 leading;
	FString* variableName;
	FString* initialText;
	U16 characterID;


};


// A flash object that defines the font and formating of text characters in the record (flash 1.0)
// takes only RGB color values

class FDTDefineText : public FDT {

public:
	FDTDefineText(	FRect* _textBounds, 
					FMatrix* _textMatrix, 
					int glyhpsInFont );		// glyhpsInFont: how many characters are in the font?
	virtual ~FDTDefineText();
	void AddTextRecord(FTextRecord* _textRec);
	U16 ID(void);
	virtual void WriteToSWFStream( FSWFStream* _SWFStream );	

private:
	U32 characterID;
	FRect* textBounds;
	FMatrix* textMatrix;
	std::list textRecords;
	U16 nIndexBits;


};


// A flash object that defines the font and formating of text characters in the record (flash 1.0)
// takes RGBA color values

class FDTDefineText2 : public FDT {

public:
	FDTDefineText2(FRect* _textBounds, FMatrix* _textMatrix, 
			   int glyhpsInFont);
	virtual ~FDTDefineText2();
	void AddTextRecord(FTextRecord* _textRec);
	U16 ID(void);
	virtual void WriteToSWFStream(FSWFStream* _SWFStream);

private:
	U32 characterID;
	FRect* textBounds;
	FMatrix* textMatrix;
	std::list textRecords;
	U16 nIndexBits;
};

// specifies text format changes in a flash DefineText object

class FTextChangeRecord : public FTextRecord {

public:
	
	FTextChangeRecord(U16 _hasFontFlag, U16 _hasColorFlag, 
					 U16 _hasXOffsetFlag, U16 _hasYOffsetFlag,
					 U16 _fontID, U16 _fontHeight, FColor* _fontColor, 
					 S16 _xOffset, S16 _yOffset );
	virtual ~FTextChangeRecord();

	virtual U32 MinAdvanceBits()		{ return 0; }
	virtual U32  MinCodeBits()			{ return 0; }

	virtual void WriteToSWFStream( FSWFStream *_SWFStream, int advanceBits, int codeBits );

private:
	
	U16 reserved;
	U16 hasFontFlag;
	U16 hasColorFlag;
	U16 hasYOffsetFlag;
	U16 hasXOffsetFlag;
	U16 fontID;
	FColor* fontColor;
	S16 xOffset;
	S16 yOffset;
	U16 fontHeight;
};

class FTextGlyphRecord: public FTextRecord {

public:
	FTextGlyphRecord();
	virtual ~FTextGlyphRecord();

	void AddGlyphEntry( U16 code, U16 advance );
	virtual void WriteToSWFStream(FSWFStream* _SWFStream, int advanceBits, int codeBits);

	virtual U32  MinAdvanceBits();		// number of bits needed to write the advance data
	virtual U32  MinCodeBits();		// number of bits needed to write the character code data

private:
	struct GlyphEntry
	{
		U16 code;
		U16 advance;
	};
	std::list glyphEntries;
};


#endif