kev/Drawer/SSBase/DrawOperator/FormatReader/DxfFile.h

//////////////////////////////////////////////////////////////////////////////
//文件: 格式转换类
//主要功能: 
//		转换AutoCAD的DXF明码格式
//
//程序编写:		2007-5-09
//
//
/////////////////////////////////////////////////////////////////////////////


#pragma once
#include ".\otherformat.h"
#include "afxcoll.h"

namespace NFormatReader
{

#define DXF_READ_BREAK		-1
#define DXF_READ_ERROR		0
#define DXF_READ_OK			1
#define DXF_READ_ELEMENT	2	//读取元素段

class CDxfFile :
	public COtherFormat
{
public:
	CDxfFile(void);
	virtual ~CDxfFile(void);

	int Read(LPCTSTR lpszPathName);
	int Read(CFile& fr);

protected:
	int ReadSection(CFile& fr);

	//生成元素
	void CreatePline(void);

	//段信息
	int ReadSectionEntities(CFile& fr);
	int ReadSectionHeader(CFile& fr);
	int ReadSectionClasses(CFile& fr);
	int ReadSectionBlocks(CFile& fr);
	int ReadSectionTables(CFile& fr);
	int ReadSectionObjects(CFile& fr);
	bool IsSectionEnd(CString &cmd);

	//块信息
	int ReadBlock(CFile& fr);
	int EndBlock(CFile& fr);
	//Table
	int ReadTable(CFile& fr);
	int EndTable(CFile& fr);

	//元素信息
	int ReadEntitieArc(CFile& fr);
	int ReadEntitieCircle(CFile& fr);
	int ReadEntitieLine(CFile& fr);
	int ReadEntitiePline(CFile& fr);
	int ReadEntitieText(CFile& fr);
	int ReadEntitie3DFace(CFile& fr);
	int ReadEntitiePoint(CFile& fr);
	int ReadEntitieSolid(CFile& fr);
	int ReadEntitieEllipse(CFile& fr);
	int ReadEntitieSpline(CFile& fr);
	int ReadEntitieLWPolyline(CFile& fr);
	int ReadEntitieImage(CFile& fr);
	int ReadEntitieMline(CFile& fr);
	int ReadEntitieLeader(CFile& fr);
	int ReadEntitieTrace(CFile& fr);
	int ReadEntitieInsert(CFile& fr);
	int ReadEntitieAttdef(CFile& fr);
	int ReadEntitieAttrib(CFile& fr);
	int ReadEntitieMText(CFile& fr);
	int ReadEntitieHatch(CFile& fr);

	//int _ReadEntitieHatch_MSegment(CFile& fr);	//多线段
	//int _ReadEntitieHatch_Line(CFile& fr);		//直线
	//int _ReadEntitieHatch_Arc(CFile& fr);		//弧
	//int _ReadEntitieHatch_EllipseArc(CFile& fr);//椭圆弧
	//int _ReadEntitieHatch_Spline(CFile& fr);	//样条曲线

	int ReadEntitieDimension(CFile& fr);
	int ReadEntitieImageDef(CFile& fr);
	int ReadEntitieViewPort(CFile& fr);
	int ReadEntitieRay(CFile& fr);
	int ReadEntitieXLine(CFile& fr);
	int ReadEntitieShape(CFile& fr);
	int ReadEntitieVertex(CFile& fr);	//读取曲线顶点

	int ReadGeneralCode(CFile& fr);	//适用于所有图形对象的组码 
	int ReadEntitieState();
	int _ReadEntities(CFile& fr);	//读取0段之后的
	int ReadEntities(CFile& fr);	//读取0段之后的

	int SkipLine(CFile& fr);		//跳过非0代码行

	void InitCurrentElement(void);
	virtual POSITION AddElement(void* pElement, int type);

protected:
	virtual void* GetXY(void);

	CString GetFontName(CString faceName);
	void SetFontName(void* pCText_Value, char* pFaceName);

	CPtrList m_listBlockXY;			//块堆栈
	BOOL IsBlockXY(void);

	class CBlockMarkClone
	{
	public:
		void* m_pXy;
		void* m_pMarkXy;
		CString m_strMarkName;
	};
	CList<CBlockMarkClone, CBlockMarkClone> m_listMarkClone;

	class CHeader
	{
	public:
		CHeader(void);
		CString m_strVer;		//版本号
		CPoint3D PUCSORG;		//当前图纸空间 UCS 原点
		CPoint3D PUCSXDIR;		//当前图纸空间 UCS X 轴
		CPoint3D PUCSYDIR;		//当前图纸空间 UCS Y 轴
	};
	CHeader header;

	class CReadCode
	{
	public:
		CReadCode(void);
		int Compare(LPCTSTR lpszString);

		int code;
		CString cmd;
	};
	CReadCode m_rc;
	int ReadCode(CFile& fr);

	//Pline
	class CPolylinePar
	{
	public:
		CPolylinePar() {Init();};
		void Init()
		{
			m_pointList.RemoveAll();
			m_dStartWidth=0;
			m_dEndWidth=0;
			m_nSegmentType=0;
			m_nSmoothType=0;
			m_strEleType=_T("");
		};

		CPointList m_pointList;
		double m_dStartWidth;
		double m_dEndWidth;
		int m_nSegmentType;
		int m_nSmoothType;
		CString m_strEleType;
	};
	CPolylinePar m_polylinePar;

	struct _CURRENT_ELE{
		DWORD m_dwID;				//当前元素的句柄ID号
		COLORREF m_colCurrent;		//当前元素的颜色
		BOOL m_bCurentView;			//当前元素的可视状态
		CString m_strLineType;		// Used LineType's Name
	};
	_CURRENT_ELE m_curElement;

	typedef struct tag_LAYER
	{
		char	Name[512];					// Layer Name
		UINT	StandardFlags;				// Standard flags
		int		Color;						// Layer Color
		char	LineType[512];				// Line Type
	} DXFLAYER, *PDXFLAYER;

	CList<DXFLAYER, DXFLAYER> m_listLayer;	//保存读取的层信息，为了后面设置元素的颜色、线型等参数
	int FindLayer(CString strLayerName, DXFLAYER& ds);

	typedef struct tag_LTYPE
	{
		char	Name[512];					// Line Type Name
		int		StandardFlags;				// Standard flags
		char	DescriptiveText[512];		// Descriptive Text
		int		ElementsNumber;				// Line Elements Number
		double	TotalPatternLength;			// Total Pattern Length
		double	Elements[30];				// Line Elements
	} DXFLTYPE, *PDXFLTYPE;

	typedef struct tag_STYLE
	{
		char	Name[512];					// Style Name
		char	PrimaryFontFilename[512];	// Primary Font Filename
		int		StandardFlags;				// Standard flag values -> 4=Vertical text
		int		TextGenerationFlags;		// Text generation flags -> 2=Text is backward  4=Text is upside down
		double	FixedTextHeight;			// Fixed text height
		double	WidthFactor;				// Width Factor
		double	Height;						// Height
		double	ObliqueAngle;				// Oblique angle
	} DXFSTYLE, *PDXFSTYLE;

	typedef struct tag_DIMSTYLE
	{
		char	Name[512];					// DimStyle Name
		int		StandardFlags;				// Standard flag values
		int		DIMCLRD;					// Dimension line & Arrow heads color
		double	DIMDLE;						// Dimension line size after Extensionline
		int		DIMCLRE;					// Extension line color
		double	DIMEXE;						// Extension line size after Dimline
		double	DIMEXO;						// Offset from origin
		char	DIMBLK1[512];				// 1st Arrow head
		char	DIMBLK2[512];				// 2nd Arrow head
		double	DIMASZ;						// Arrow size
		char	DIMTXSTY[512];				// Text style
		DWORD	DIMTXSTYObjhandle;			// Text style Object Handle
		int		DIMCLRT;					// Text color
		double	DIMTXT;						// Text height
		int		DIMTAD;						// Vertical Text Placement
		double	DIMGAP;						// Offset from dimension line
	} DXFDIMSTYLE, *PDXFDIMSTYLE;

	//Tables
	int ReadTableVIEW(CFile &fr);
	int ReadTableUCS(CFile &fr);
	int ReadTableBLOCK_RECORD(CFile &fr);
	int ReadTableAPPID(CFile &fr);
	int ReadTableVPORT(CFile &fr);
	int ReadTableSTYLE(CFile &fr);
	int ReadTableDIMSTYLE(CFile &fr);
	int ReadTableLAYER(CFile &fr);
	int ReadTableLTYPE(CFile &fr);

	typedef struct tag_DXFENTDIMENSION {
		CPoint3D	DefPoint3;
		CPoint3D	DefPoint4;
		double		DimRotationAngle;
		CPoint3D	DimLineDefPoint;
		char		BlockName[16];
		char		DimStyleName[512];
		char		DimText[1024];
	} DXFENTDIMENSION, *PDXFENTDIMENSION;
};

};