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// HtmlOutputDev.h
// Copyright 1997 Derek B. Noonburg
// Changed 1999 by G.Ovtcharov
// Modified under the Poppler project -
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
// Copyright (C) 2006, 2007, 2009 Albert Astals Cid <>
// Copyright (C) 2008-2009 Warren Toomey <>
// Copyright (C) 2009 Carlos Garcia Campos <>
// Copyright (C) 2009 Kovid Goyal <>
// Copyright (C) 2010 Hib Eris <>
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
#ifdef __GNUC__
#pragma interface
#include <stdio.h>
#include "goo/gtypes.h"
#include "goo/GooList.h"
#include "GfxFont.h"
#include "OutputDev.h"
#include "HtmlLinks.h"
#include "HtmlFonts.h"
#include "Link.h"
#include "Catalog.h"
#include "UnicodeMap.h"
#ifdef _WIN32
# define SLASH '\\'
# define SLASH '/'
#define xoutRound(x) ((int)(x + 0.5))
#define DOCTYPE "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"
#define DOCTYPE_FRAMES "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Frameset//EN\"\n\"\">"
class GfxState;
class GooString;
// HtmlString
enum UnicodeTextDirection {
class HtmlString {
// Constructor.
HtmlString(GfxState *state, double fontSize, HtmlFontAccu* fonts);
// Destructor.
// Add a character to the string.
void addChar(GfxState *state, double x, double y,
double dx, double dy,
Unicode u);
HtmlLink* getLink() { return link; }
void endString(); // postprocessing
// aender die text variable
HtmlLink *link;
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
int col; // starting column
Unicode *text; // the text
double *xRight; // right-hand x coord of each char
HtmlString *yxNext; // next string in y-major order
HtmlString *xyNext; // next string in x-major order
int fontpos;
GooString* htext;
int len; // length of text and xRight
int size; // size of text and xRight arrays
UnicodeTextDirection dir; // direction (left to right/right to left)
friend class HtmlPage;
// HtmlPage
class HtmlPage {
// Constructor.
HtmlPage(GBool rawOrder, char *imgExtVal);
// Destructor.
// Begin a new string.
void beginString(GfxState *state, GooString *s);
// Add a character to the current string.
void addChar(GfxState *state, double x, double y,
double dx, double dy,
double ox, double oy,
Unicode *u, int uLen); //Guchar c);
void updateFont(GfxState *state);
// End the current string, sorting it into the list of strings.
void endString();
// Coalesce strings that look like parts of the same line.
void coalesce();
// Find a string. If <top> is true, starts looking at top of page;
// otherwise starts looking at <xMin>,<yMin>. If <bottom> is true,
// stops looking at bottom of page; otherwise stops looking at
// <xMax>,<yMax>. If found, sets the text bounding rectange and
// returns true; otherwise returns false.
// new functions
void AddLink(const HtmlLink& x){
void dump(FILE *f, int pageNum);
// Clear the page.
void clear();
void conv();
HtmlFont* getFont(HtmlString *hStr) { return fonts->Get(hStr->fontpos); }
double fontSize; // current font size
GBool rawOrder; // keep strings in content stream order
HtmlString *curStr; // currently active string
HtmlString *yxStrings; // strings in y-major order
HtmlString *xyStrings; // strings in x-major order
HtmlString *yxCur1, *yxCur2; // cursors for yxStrings list
void setDocName(char* fname);
void dumpAsXML(FILE* f,int page);
void dumpComplex(FILE* f, int page);
// marks the position of the fonts that belong to current page (for noframes)
int fontsPageMarker;
HtmlFontAccu *fonts;
HtmlLinks *links;
GooString *DocName;
GooString *imgExt;
int pageWidth;
int pageHeight;
static int pgNum;
int firstPage; // used to begin the numeration of pages
friend class HtmlOutputDev;
// HtmlMetaVar
class HtmlMetaVar {
HtmlMetaVar(char *_name, char *_content);
GooString* toString();
GooString *name;
GooString *content;
// HtmlOutputDev
class HtmlOutputDev: public OutputDev {
// Open a text output file. If <fileName> is NULL, no file is written
// (this is useful, e.g., for searching text). If <useASCII7> is true,
// text is converted to 7-bit ASCII; otherwise, text is converted to
// 8-bit ISO Latin-1. <useASCII7> should also be set for Japanese
// (EUC-JP) text. If <rawOrder> is true, the text is kept in content
// stream order.
HtmlOutputDev(char *fileName, char *title,
char *author,
char *keywords,
char *subject,
char *date,
char *extension,
GBool rawOrder,
int firstPage = 1,
GBool outline = 0);
// Destructor.
virtual ~HtmlOutputDev();
// Check if file was successfully created.
virtual GBool isOk() { return ok; }
//---- get info about output device
// Does this device use upside-down coordinates?
// (Upside-down means (0,0) is the top left corner of the page.)
virtual GBool upsideDown() { return gTrue; }
// Does this device use drawChar() or drawString()?
virtual GBool useDrawChar() { return gTrue; }
// Does this device use beginType3Char/endType3Char? Otherwise,
// text in Type 3 fonts will be drawn with drawChar/drawString.
virtual GBool interpretType3Chars() { return gFalse; }
// Does this device need non-text content?
virtual GBool needNonText() { return gTrue; }
//----- initialization and control
virtual GBool checkPageSlice(Page *page, double hDPI, double vDPI,
int rotate, GBool useMediaBox, GBool crop,
int sliceX, int sliceY, int sliceW, int sliceH,
GBool printing, Catalog * catalogA,
GBool (* abortCheckCbk)(void *data) = NULL,
void * abortCheckCbkData = NULL)
docPage = page;
catalog = catalogA;
return gTrue;
// Start a page.
virtual void startPage(int pageNum, GfxState *state);
// End a page.
virtual void endPage();
//----- update text state
virtual void updateFont(GfxState *state);
//----- text drawing
virtual void beginString(GfxState *state, GooString *s);
virtual void endString(GfxState *state);
virtual void drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode code, int nBytes, Unicode *u, int uLen);
virtual void drawImageMask(GfxState *state, Object *ref,
Stream *str,
int width, int height, GBool invert,
GBool interpolate, GBool inlineImg);
virtual void drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
GBool interpolate, int *maskColors, GBool inlineImg);
//new feature
virtual int DevType() {return 1234;}
int getPageWidth() { return maxPageWidth; }
int getPageHeight() { return maxPageHeight; }
GBool dumpDocOutline(Catalog* catalog);
// convert encoding into a HTML standard, or encoding->getCString if not
// recognized
static char* mapEncodingToHtml(GooString* encoding);
void doProcessLink(Link *link);
GooString* getLinkDest(Link *link,Catalog *catalog);
void dumpMetaVars(FILE *);
void doFrame(int firstPage);
GBool newOutlineLevel(FILE *output, Object *node, Catalog* catalog, int level = 1);
FILE *fContentsFrame;
FILE *page; // html file
//FILE *tin; // image log file
//GBool write;
GBool needClose; // need to close the file?
HtmlPage *pages; // text for the current page
GBool rawOrder; // keep text in content stream order
GBool doOutline; // output document outline
GBool ok; // set up ok?
GBool dumpJPEG;
int pageNum;
int maxPageWidth;
int maxPageHeight;
static int imgNum;
static GooList *imgList;
GooString *Docname;
GooString *docTitle;
GooList *glMetaVars;
Catalog *catalog;
Page *docPage;
friend class HtmlPage;