globalparams.h

这是一个做pdf阅读器的源代码文件,是大家学习阅读器资料的很好参考

//========================================================================
//
// GlobalParams.h
//
// Copyright 2001-2003 Glyph & Cog, LLC
//
//========================================================================

#ifndef GLOBALPARAMS_H
#define GLOBALPARAMS_H

#include <aconf.h>

#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif

#include <stdio.h>
#include "gtypes.h"
#include "CharTypes.h"

#if MULTITHREADED
#include "GMutex.h"
#endif

class GString;
class GList;
class GHash;
class NameToCharCode;
class CharCodeToUnicode;
class CharCodeToUnicodeCache;
class UnicodeMap;
class UnicodeMapCache;
class CMap;
class CMapCache;
struct XpdfSecurityHandler;
class GlobalParams;
#ifdef WIN32
class WinFontList;
#endif

//------------------------------------------------------------------------

// The global parameters object.
extern GlobalParams *globalParams;

//------------------------------------------------------------------------

enum DisplayFontParamKind {
  displayFontT1,
  displayFontTT
};

struct DisplayFontParamT1 {
  GString *fileName;
};

struct DisplayFontParamTT {
  GString *fileName;
};

class DisplayFontParam {
public:

  GString *name;		// font name for 8-bit fonts and named
				//   CID fonts; collection name for
				//   generic CID fonts
  DisplayFontParamKind kind;
  union {
    DisplayFontParamT1 t1;
    DisplayFontParamTT tt;
  };

  DisplayFontParam(GString *nameA, DisplayFontParamKind kindA);
  virtual ~DisplayFontParam();
};

//------------------------------------------------------------------------

class PSFontParam {
public:

  GString *pdfFontName;		// PDF font name for 8-bit fonts and
				//   named 16-bit fonts; char collection
				//   name for generic 16-bit fonts
  int wMode;			// writing mode (0=horiz, 1=vert) for
				//   16-bit fonts
  GString *psFontName;		// PostScript font name
  GString *encoding;		// encoding, for 16-bit fonts only

  PSFontParam(GString *pdfFontNameA, int wModeA,
	      GString *psFontNameA, GString *encodingA);
  ~PSFontParam();
};

//------------------------------------------------------------------------

enum PSLevel {
  psLevel1,
  psLevel1Sep,
  psLevel2,
  psLevel2Sep,
  psLevel3,
  psLevel3Sep
};

//------------------------------------------------------------------------

enum EndOfLineKind {
  eolUnix,			// LF
  eolDOS,			// CR+LF
  eolMac			// CR
};

//------------------------------------------------------------------------

enum ScreenType {
  screenUnset,
  screenDispersed,
  screenClustered,
  screenStochasticClustered
};

//------------------------------------------------------------------------

class KeyBinding {
public:

  int code;			// 0x20 .. 0xfe = ASCII,
				//   >=0x10000 = special keys, mouse buttons,
				//   etc. (xpdfKeyCode* symbols)
  int mods;			// modifiers (xpdfKeyMod* symbols, or-ed
				//   together)
  int context;			// context (xpdfKeyContext* symbols, or-ed
				//   together)
  GList *cmds;			// list of commands [GString]

  KeyBinding(int codeA, int modsA, int contextA, char *cmd0);
  KeyBinding(int codeA, int modsA, int contextA, char *cmd0, char *cmd1);
  KeyBinding(int codeA, int modsA, int contextA, GList *cmdsA);
  ~KeyBinding();
};

#define xpdfKeyCodeTab            0x1000
#define xpdfKeyCodeReturn         0x1001
#define xpdfKeyCodeEnter          0x1002
#define xpdfKeyCodeBackspace      0x1003
#define xpdfKeyCodeInsert         0x1004
#define xpdfKeyCodeDelete         0x1005
#define xpdfKeyCodeHome           0x1006
#define xpdfKeyCodeEnd            0x1007
#define xpdfKeyCodePgUp           0x1008
#define xpdfKeyCodePgDn           0x1009
#define xpdfKeyCodeLeft           0x100a
#define xpdfKeyCodeRight          0x100b
#define xpdfKeyCodeUp             0x100c
#define xpdfKeyCodeDown           0x100d
#define xpdfKeyCodeF1             0x1100
#define xpdfKeyCodeF35            0x1122
#define xpdfKeyCodeMousePress1    0x2001
#define xpdfKeyCodeMousePress2    0x2002
#define xpdfKeyCodeMousePress3    0x2003
#define xpdfKeyCodeMousePress4    0x2004
#define xpdfKeyCodeMousePress5    0x2005
#define xpdfKeyCodeMousePress6    0x2006
#define xpdfKeyCodeMousePress7    0x2007
#define xpdfKeyCodeMouseRelease1  0x2101
#define xpdfKeyCodeMouseRelease2  0x2102
#define xpdfKeyCodeMouseRelease3  0x2103
#define xpdfKeyCodeMouseRelease4  0x2104
#define xpdfKeyCodeMouseRelease5  0x2105
#define xpdfKeyCodeMouseRelease6  0x2106
#define xpdfKeyCodeMouseRelease7  0x2107
#define xpdfKeyModNone            0
#define xpdfKeyModShift           (1 << 0)
#define xpdfKeyModCtrl            (1 << 1)
#define xpdfKeyModAlt             (1 << 2)
#define xpdfKeyContextAny         0
#define xpdfKeyContextFullScreen  (1 << 0)
#define xpdfKeyContextWindow      (2 << 0)
#define xpdfKeyContextContinuous  (1 << 2)
#define xpdfKeyContextSinglePage  (2 << 2)
#define xpdfKeyContextOverLink    (1 << 4)
#define xpdfKeyContextOffLink     (2 << 4)
#define xpdfKeyContextOutline     (1 << 6)
#define xpdfKeyContextMainWin     (2 << 6)
#define xpdfKeyContextScrLockOn   (1 << 8)
#define xpdfKeyContextScrLockOff  (2 << 8)

//------------------------------------------------------------------------

class GlobalParams {
public:

  // Initialize the global parameters by attempting to read a config
  // file.
  GlobalParams(char *cfgFileName);

  ~GlobalParams();

  void setBaseDir(char *dir);
  void setupBaseFonts(char *dir);

  void parseLine(char *buf, GString *fileName, int line);

  //----- accessors

  CharCode getMacRomanCharCode(char *charName);

  GString *getBaseDir();
  Unicode mapNameToUnicode(char *charName);
  UnicodeMap *getResidentUnicodeMap(GString *encodingName);
  FILE *getUnicodeMapFile(GString *encodingName);
  FILE *findCMapFile(GString *collection, GString *cMapName);
  FILE *findToUnicodeFile(GString *name);
  DisplayFontParam *getDisplayFont(GString *fontName);
  DisplayFontParam *getDisplayCIDFont(GString *fontName, GString *collection);
  GString *getPSFile();
  int getPSPaperWidth();
  int getPSPaperHeight();
  void getPSImageableArea(int *llx, int *lly, int *urx, int *ury);
  GBool getPSDuplex();
  GBool getPSCrop();
  GBool getPSExpandSmaller();
  GBool getPSShrinkLarger();
  GBool getPSCenter();
  PSLevel getPSLevel();
  PSFontParam *getPSFont(GString *fontName);
  PSFontParam *getPSFont16(GString *fontName, GString *collection, int wMode);
  GBool getPSEmbedType1();
  GBool getPSEmbedTrueType();
  GBool getPSEmbedCIDPostScript();