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//========================================================================
//
// HtmlOutputDev.cc
//
// Copyright 1997-2002 Glyph & Cog, LLC
//
// Changed 1999-2000 by G.Ovtcharov
//
// Changed 2002 by Mikhail Kruk
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005-2010 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2008 Kjartan Maraas <kmaraas@gnome.org>
// Copyright (C) 2008 Boris Toloknov <tlknv@yandex.ru>
// Copyright (C) 2008 Haruyuki Kawabe <Haruyuki.Kawabe@unisys.co.jp>
// Copyright (C) 2008 Tomas Are Haavet <tomasare@gmail.com>
// Copyright (C) 2009 Warren Toomey <wkt@tuhs.org>
// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2009 Reece Dunn <msclrhd@gmail.com>
// Copyright (C) 2010 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2010 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2010 OSSD CDAC Mumbai by Leena Chourey (leenac@cdacmumbai.in) and Onkar Potdar (onkar@cdacmumbai.in)
//
// 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 implementation
#endif
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <ctype.h>
#include <math.h>
#include "goo/GooString.h"
#include "goo/GooList.h"
#include "UnicodeMap.h"
#include "goo/gmem.h"
#include "Error.h"
#include "GfxState.h"
#include "Page.h"
#include "PNGWriter.h"
#ifdef ENABLE_LIBJPEG
#include "DCTStream.h"
#endif
#include "GlobalParams.h"
#include "HtmlOutputDev.h"
#include "HtmlFonts.h"
int HtmlPage::pgNum=0;
int HtmlOutputDev::imgNum=1;
GooList *HtmlOutputDev::imgList=new GooList();
extern GBool complexMode;
extern GBool singleHtml;
extern GBool ignore;
extern GBool printCommands;
extern GBool printHtml;
extern GBool noframes;
extern GBool stout;
extern GBool xml;
extern GBool showHidden;
extern GBool noMerge;
static GooString* basename(GooString* str){
char *p=str->getCString();
int len=str->getLength();
for (int i=len-1;i>=0;i--)
if (*(p+i)==SLASH)
return new GooString((p+i+1),len-i-1);
return new GooString(str);
}
#if 0
static GooString* Dirname(GooString* str){
char *p=str->getCString();
int len=str->getLength();
for (int i=len-1;i>=0;i--)
if (*(p+i)==SLASH)
return new GooString(p,i+1);
return new GooString();
}
#endif
//------------------------------------------------------------------------
// HtmlString
//------------------------------------------------------------------------
HtmlString::HtmlString(GfxState *state, double fontSize, HtmlFontAccu* fonts) {
GfxFont *font;
double x, y;
state->transform(state->getCurX(), state->getCurY(), &x, &y);
if ((font = state->getFont())) {
double ascent = font->getAscent();
double descent = font->getDescent();
if( ascent > 1.05 ){
//printf( "ascent=%.15g is too high, descent=%.15g\n", ascent, descent );
ascent = 1.05;
}
if( descent < -0.4 ){
//printf( "descent %.15g is too low, ascent=%.15g\n", descent, ascent );
descent = -0.4;
}
yMin = y - ascent * fontSize;
yMax = y - descent * fontSize;
GfxRGB rgb;
state->getFillRGB(&rgb);
GooString *name = state->getFont()->getName();
if (!name) name = HtmlFont::getDefaultFont(); //new GooString("default");
HtmlFont hfont=HtmlFont(name, static_cast<int>(fontSize-1), rgb);
fontpos = fonts->AddFont(hfont);
} else {
// this means that the PDF file draws text without a current font,
// which should never happen
yMin = y - 0.95 * fontSize;
yMax = y + 0.35 * fontSize;
fontpos=0;
}
if (yMin == yMax) {
// this is a sanity check for a case that shouldn't happen -- but
// if it does happen, we want to avoid dividing by zero later
yMin = y;
yMax = y + 1;
}
col = 0;
text = NULL;
xRight = NULL;
link = NULL;
len = size = 0;
yxNext = NULL;
xyNext = NULL;
htext=new GooString();
dir = textDirUnknown;
}
HtmlString::~HtmlString() {
gfree(text);
delete htext;
gfree(xRight);
}
void HtmlString::addChar(GfxState *state, double x, double y,
double dx, double dy, Unicode u) {
if (dir == textDirUnknown) {
//dir = UnicodeMap::getDirection(u);
dir = textDirLeftRight;
}
if (len == size) {
size += 16;
text = (Unicode *)grealloc(text, size * sizeof(Unicode));
xRight = (double *)grealloc(xRight, size * sizeof(double));
}
text[len] = u;
if (len == 0) {
xMin = x;
}
xMax = xRight[len] = x + dx;
//printf("added char: %f %f xright = %f\n", x, dx, x+dx);
++len;
}
void HtmlString::endString()
{
if( dir == textDirRightLeft && len > 1 )
{
//printf("will reverse!\n");
for (int i = 0; i < len / 2; i++)
{
Unicode ch = text[i];
text[i] = text[len - i - 1];
text[len - i - 1] = ch;
}
}
}
//------------------------------------------------------------------------
// HtmlPage
//------------------------------------------------------------------------
HtmlPage::HtmlPage(GBool rawOrder, char *imgExtVal) {
this->rawOrder = rawOrder;
curStr = NULL;
yxStrings = NULL;
xyStrings = NULL;
yxCur1 = yxCur2 = NULL;
fonts=new HtmlFontAccu();
links=new HtmlLinks();
pageWidth=0;
pageHeight=0;
fontsPageMarker = 0;
DocName=NULL;
firstPage = -1;
imgExt = new GooString(imgExtVal);
}
HtmlPage::~HtmlPage() {
clear();
if (DocName) delete DocName;
if (fonts) delete fonts;
if (links) delete links;
if (imgExt) delete imgExt;
}
void HtmlPage::updateFont(GfxState *state) {
GfxFont *font;
double *fm;
char *name;
int code;
double w;
// adjust the font size
fontSize = state->getTransformedFontSize();
if ((font = state->getFont()) && font->getType() == fontType3) {
// This is a hack which makes it possible to deal with some Type 3
// fonts. The problem is that it's impossible to know what the
// base coordinate system used in the font is without actually
// rendering the font. This code tries to guess by looking at the
// width of the character 'm' (which breaks if the font is a
// subset that doesn't contain 'm').
for (code = 0; code < 256; ++code) {
if ((name = ((Gfx8BitFont *)font)->getCharName(code)) &&
name[0] == 'm' && name[1] == '\0') {
break;
}
}
if (code < 256) {
w = ((Gfx8BitFont *)font)->getWidth(code);
if (w != 0) {
// 600 is a generic average 'm' width -- yes, this is a hack
fontSize *= w / 0.6;
}
}
fm = font->getFontMatrix();
if (fm[0] != 0) {
fontSize *= fabs(fm[3] / fm[0]);
}
}
}
void HtmlPage::beginString(GfxState *state, GooString *s) {
curStr = new HtmlString(state, fontSize, fonts);
}
void HtmlPage::conv(){
HtmlString *tmp;
int linkIndex = 0;
HtmlFont* h;
for(tmp=yxStrings;tmp;tmp=tmp->yxNext){
int pos=tmp->fontpos;
// printf("%d\n",pos);
h=fonts->Get(pos);
if (tmp->htext) delete tmp->htext;
tmp->htext=HtmlFont::simple(h,tmp->text,tmp->len);
if (links->inLink(tmp->xMin,tmp->yMin,tmp->xMax,tmp->yMax, linkIndex)){
tmp->link = links->getLink(linkIndex);
/*GooString *t=tmp->htext;
tmp->htext=links->getLink(k)->Link(tmp->htext);
delete t;*/
}
}
}
void HtmlPage::addChar(GfxState *state, double x, double y,
double dx, double dy,
double ox, double oy, Unicode *u, int uLen) {
double x1, y1, w1, h1, dx2, dy2;
int n, i;
state->transform(x, y, &x1, &y1);
n = curStr->len;
// check that new character is in the same direction as current string
// and is not too far away from it before adding
//if ((UnicodeMap::getDirection(u[0]) != curStr->dir) ||
// XXX
if (
(n > 0 &&
fabs(x1 - curStr->xRight[n-1]) > 0.1 * (curStr->yMax - curStr->yMin))) {
endString();
beginString(state, NULL);
}
state->textTransformDelta(state->getCharSpace() * state->getHorizScaling(),
0, &dx2, &dy2);
dx -= dx2;
dy -= dy2;
state->transformDelta(dx, dy, &w1, &h1);
if (uLen != 0) {
w1 /= uLen;
h1 /= uLen;
}
for (i = 0; i < uLen; ++i) {
curStr->addChar(state, x1 + i*w1, y1 + i*h1, w1, h1, u[i]);
}
}
void HtmlPage::endString() {
HtmlString *p1, *p2;
double h, y1, y2;
// throw away zero-length strings -- they don't have valid xMin/xMax
// values, and they're useless anyway
if (curStr->len == 0) {
delete curStr;
curStr = NULL;
return;
}
curStr->endString();
#if 0 //~tmp
if (curStr->yMax - curStr->yMin > 20) {
delete curStr;
curStr = NULL;
return;
}
#endif
// insert string in y-major list
h = curStr->yMax - curStr->yMin;
y1 = curStr->yMin + 0.5 * h;
y2 = curStr->yMin + 0.8 * h;
if (rawOrder) {
p1 = yxCur1;
p2 = NULL;
} else if ((!yxCur1 ||
(y1 >= yxCur1->yMin &&
(y2 >= yxCur1->yMax || curStr->xMax >= yxCur1->xMin))) &&
(!yxCur2 ||
(y1 < yxCur2->yMin ||
(y2 < yxCur2->yMax && curStr->xMax < yxCur2->xMin)))) {
p1 = yxCur1;
p2 = yxCur2;
} else {
for (p1 = NULL, p2 = yxStrings; p2; p1 = p2, p2 = p2->yxNext) {
if (y1 < p2->yMin || (y2 < p2->yMax && curStr->xMax < p2->xMin))
break;
}
yxCur2 = p2;
}
yxCur1 = curStr;
if (p1)
p1->yxNext = curStr;
else
yxStrings = curStr;
curStr->yxNext = p2;
curStr = NULL;
}
static const char *strrstr( const char *s, const char *ss )
{
const char *p = strstr( s, ss );
for( const char *pp = p; pp != NULL; pp = strstr( p+1, ss ) ){
p = pp;
}
return p;
}
static void CloseTags( GooString *htext, GBool &finish_a, GBool &finish_italic, GBool &finish_bold )
{
const char *last_italic = finish_italic && ( finish_bold || finish_a ) ? strrstr( htext->getCString(), "<i>" ) : NULL;
const char *last_bold = finish_bold && ( finish_italic || finish_a ) ? strrstr( htext->getCString(), "<b>" ) : NULL;
const char *last_a = finish_a && ( finish_italic || finish_bold ) ? strrstr( htext->getCString(), "<a " ) : NULL;
if( finish_a && ( finish_italic || finish_bold ) && last_a > ( last_italic > last_bold ? last_italic : last_bold ) ){
htext->append("</a>", 4);
finish_a = false;
}
if( finish_italic && finish_bold && last_italic > last_bold ){
htext->append("</i>", 4);
finish_italic = false;
}
if( finish_bold )
htext->append("</b>", 4);
if( finish_italic )
htext->append("</i>", 4);
if( finish_a )
htext->append("</a>");
}
void HtmlPage::coalesce() {
HtmlString *str1, *str2;
HtmlFont *hfont1, *hfont2;
double space, horSpace, vertSpace, vertOverlap;
GBool addSpace, addLineBreak;
int n, i;
double curX, curY;
#if 0 //~ for debugging
for (str1 = yxStrings; str1; str1 = str1->yxNext) {
printf("x=%f..%f y=%f..%f size=%2d '",
str1->xMin, str1->xMax, str1->yMin, str1->yMax,
(int)(str1->yMax - str1->yMin));
for (i = 0; i < str1->len; ++i) {
fputc(str1->text[i] & 0xff, stdout);
}
printf("'\n");
}
printf("\n------------------------------------------------------------\n\n");
#endif
str1 = yxStrings;
if( !str1 ) return;
//----- discard duplicated text (fake boldface, drop shadows)
if( !complexMode )
{ /* if not in complex mode get rid of duplicate strings */
HtmlString *str3;
GBool found;
while (str1)
{
double size = str1->yMax - str1->yMin;
double xLimit = str1->xMin + size * 0.2;
found = gFalse;
for (str2 = str1, str3 = str1->yxNext;
str3 && str3->xMin < xLimit;
str2 = str3, str3 = str2->yxNext)
{
if (str3->len == str1->len &&
!memcmp(str3->text, str1->text, str1->len * sizeof(Unicode)) &&
fabs(str3->yMin - str1->yMin) < size * 0.2 &&
fabs(str3->yMax - str1->yMax) < size * 0.2 &&
fabs(str3->xMax - str1->xMax) < size * 0.2)
{
found = gTrue;
//printf("found duplicate!\n");
break;
}
}
if (found)
{
str2->xyNext = str3->xyNext;
str2->yxNext = str3->yxNext;
delete str3;
}
else
{
str1 = str1->yxNext;
}
}
} /*- !complexMode */
str1 = yxStrings;
hfont1 = getFont(str1);
if( hfont1->isBold() )
str1->htext->insert(0,"<b>",3);
if( hfont1->isItalic() )
str1->htext->insert(0,"<i>",3);
if( str1->getLink() != NULL ) {
GooString *ls = str1->getLink()->getLinkStart();
str1->htext->insert(0, ls);
delete ls;
}
curX = str1->xMin; curY = str1->yMin;
while (str1 && (str2 = str1->yxNext)) {
hfont2 = getFont(str2);
space = str1->yMax - str1->yMin;
horSpace = str2->xMin - str1->xMax;
addLineBreak = !noMerge && (fabs(str1->xMin - str2->xMin) < 0.4);
vertSpace = str2->yMin - str1->yMax;
//printf("coalesce %d %d %f? ", str1->dir, str2->dir, d);
if (str2->yMin >= str1->yMin && str2->yMin <= str1->yMax)
{
vertOverlap = str1->yMax - str2->yMin;
} else
if (str2->yMax >= str1->yMin && str2->yMax <= str1->yMax)
{
vertOverlap = str2->yMax - str1->yMin;
} else
{
vertOverlap = 0;
}
if (
(
(
(
(rawOrder && vertOverlap > 0.5 * space)
||
(!rawOrder && str2->yMin < str1->yMax)
) &&
(horSpace > -0.5 * space && horSpace < space)
) ||
(vertSpace >= 0 && vertSpace < 0.5 * space && addLineBreak)
) &&
(!complexMode || (hfont1->isEqualIgnoreBold(*hfont2))) && // in complex mode fonts must be the same, in other modes fonts do not metter
str1->dir == str2->dir // text direction the same
)
{
// printf("yes\n");
n = str1->len + str2->len;
if ((addSpace = horSpace > 0.1 * space)) {
++n;
}
if (addLineBreak) {
++n;
}
str1->size = (n + 15) & ~15;
str1->text = (Unicode *)grealloc(str1->text,
str1->size * sizeof(Unicode));
str1->xRight = (double *)grealloc(str1->xRight,
str1->size * sizeof(double));
if (addSpace) {
str1->text[str1->len] = 0x20;
str1->htext->append(xml?" ":" ");
str1->xRight[str1->len] = str2->xMin;
++str1->len;
}
if (addLineBreak) {
str1->text[str1->len] = '\n';
str1->htext->append("<br>");
str1->xRight[str1->len] = str2->xMin;
++str1->len;
str1->yMin = str2->yMin;
str1->yMax = str2->yMax;
str1->xMax = str2->xMax;
int fontLineSize = hfont1->getLineSize();
int curLineSize = (int)(vertSpace + space);
if( curLineSize != fontLineSize )
{
HtmlFont *newfnt = new HtmlFont(*hfont1);
newfnt->setLineSize(curLineSize);
str1->fontpos = fonts->AddFont(*newfnt);
delete newfnt;
hfont1 = getFont(str1);
// we have to reget hfont2 because it's location could have
// changed on resize
hfont2 = getFont(str2);
}
}
for (i = 0; i < str2->len; ++i) {
str1->text[str1->len] = str2->text[i];
str1->xRight[str1->len] = str2->xRight[i];
++str1->len;
}
/* fix <i>, <b> if str1 and str2 differ and handle switch of links */
HtmlLink *hlink1 = str1->getLink();
HtmlLink *hlink2 = str2->getLink();
bool switch_links = !hlink1 || !hlink2 || !hlink1->isEqualDest(*hlink2);
GBool finish_a = switch_links && hlink1 != NULL;
GBool finish_italic = hfont1->isItalic() && ( !hfont2->isItalic() || finish_a );
GBool finish_bold = hfont1->isBold() && ( !hfont2->isBold() || finish_a || finish_italic );
CloseTags( str1->htext, finish_a, finish_italic, finish_bold );
if( switch_links && hlink2 != NULL ) {
GooString *ls = hlink2->getLinkStart();
str1->htext->append(ls);
delete ls;
}
if( ( !hfont1->isItalic() || finish_italic ) && hfont2->isItalic() )
str1->htext->append("<i>", 3);
if( ( !hfont1->isBold() || finish_bold ) && hfont2->isBold() )
str1->htext->append("<b>", 3);
str1->htext->append(str2->htext);
// str1 now contains href for link of str2 (if it is defined)
str1->link = str2->link;
hfont1 = hfont2;
if (str2->xMax > str1->xMax) {
str1->xMax = str2->xMax;
}
if (str2->yMax > str1->yMax) {
str1->yMax = str2->yMax;
}
str1->yxNext = str2->yxNext;
delete str2;
} else { // keep strings separate
// printf("no\n");
GBool finish_a = str1->getLink() != NULL;
GBool finish_bold = hfont1->isBold();
GBool finish_italic = hfont1->isItalic();
CloseTags( str1->htext, finish_a, finish_italic, finish_bold );
str1->xMin = curX; str1->yMin = curY;
str1 = str2;
curX = str1->xMin; curY = str1->yMin;
hfont1 = hfont2;
if( hfont1->isBold() )
str1->htext->insert(0,"<b>",3);
if( hfont1->isItalic() )
str1->htext->insert(0,"<i>",3);
if( str1->getLink() != NULL ) {
GooString *ls = str1->getLink()->getLinkStart();
str1->htext->insert(0, ls);
delete ls;
}
}
}
str1->xMin = curX; str1->yMin = curY;
GBool finish_bold = hfont1->isBold();
GBool finish_italic = hfont1->isItalic();
GBool finish_a = str1->getLink() != NULL;
CloseTags( str1->htext, finish_a, finish_italic, finish_bold );
#if 0 //~ for debugging
for (str1 = yxStrings; str1; str1 = str1->yxNext) {
printf("x=%3d..%3d y=%3d..%3d size=%2d ",
(int)str1->xMin, (int)str1->xMax, (int)str1->yMin, (int)str1->yMax,
(int)(str1->yMax - str1->yMin));
printf("'%s'\n", str1->htext->getCString());
}
printf("\n------------------------------------------------------------\n\n");
#endif
}
void HtmlPage::dumpAsXML(FILE* f,int page){
fprintf(f, "<page number=\"%d\" position=\"absolute\"", page);
fprintf(f," top=\"0\" left=\"0\" height=\"%d\" width=\"%d\">\n", pageHeight,pageWidth);
for(int i=fontsPageMarker;i < fonts->size();i++) {
GooString *fontCSStyle = fonts->CSStyle(i);
fprintf(f,"\t%s\n",fontCSStyle->getCString());
delete fontCSStyle;
}
GooString *str, *str1 = NULL;
for(HtmlString *tmp=yxStrings;tmp;tmp=tmp->yxNext){
if (tmp->htext){
str=new GooString(tmp->htext);
fprintf(f,"<text top=\"%d\" left=\"%d\" ",xoutRound(tmp->yMin),xoutRound(tmp->xMin));
fprintf(f,"width=\"%d\" height=\"%d\" ",xoutRound(tmp->xMax-tmp->xMin),xoutRound(tmp->yMax-tmp->yMin));
fprintf(f,"font=\"%d\">", tmp->fontpos);
str1=fonts->getCSStyle(tmp->fontpos, str);
fputs(str1->getCString(),f);
delete str;
delete str1;
fputs("</text>\n",f);
}
}
fputs("</page>\n",f);
}
void HtmlPage::dumpComplex(FILE *file, int page){
FILE* pageFile;
GooString* tmp;
char* htmlEncoding;
if( firstPage == -1 ) firstPage = page;
if( !noframes )
{
GooString* pgNum=GooString::fromInt(page);
tmp = new GooString(DocName);
if (!singleHtml){
tmp->append('-')->append(pgNum)->append(".html");
pageFile = fopen(tmp->getCString(), "w");
} else {
tmp->append("-html")->append(".html");
pageFile = fopen(tmp->getCString(), "a");
}
delete pgNum;
if (!pageFile) {
error(-1, "Couldn't open html file '%s'", tmp->getCString());
delete tmp;
return;
}
if (!singleHtml)
fprintf(pageFile,"%s\n<HTML>\n<HEAD>\n<TITLE>Page %d</TITLE>\n\n", DOCTYPE, page);
else
fprintf(pageFile,"%s\n<HTML>\n<HEAD>\n<TITLE>%s</TITLE>\n\n", DOCTYPE, tmp->getCString());
delete tmp;
htmlEncoding = HtmlOutputDev::mapEncodingToHtml
(globalParams->getTextEncodingName());
if (!singleHtml)
fprintf(pageFile, "<META http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">\n", htmlEncoding);
else
fprintf(pageFile, "<META http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">\n <br>\n", htmlEncoding);
}
else
{
pageFile = file;
fprintf(pageFile,"<!-- Page %d -->\n", page);
fprintf(pageFile,"<a name=\"%d\"></a>\n", page);
}
fprintf(pageFile,"<DIV style=\"position:relative;width:%d;height:%d;\">\n",
pageWidth, pageHeight);
tmp=basename(DocName);
fputs("<STYLE type=\"text/css\">\n<!--\n",pageFile);
for(int i=fontsPageMarker;i!=fonts->size();i++) {
GooString *fontCSStyle;
if (!singleHtml)
fontCSStyle = fonts->CSStyle(i);
else
fontCSStyle = fonts->CSStyle(i,page);
fprintf(pageFile,"\t%s\n",fontCSStyle->getCString());
delete fontCSStyle;
}
fputs("-->\n</STYLE>\n",pageFile);
if( !noframes )
{
fputs("</HEAD>\n<BODY bgcolor=\"#A0A0A0\" vlink=\"blue\" link=\"blue\">\n",pageFile);
}
if( !ignore )
{
fprintf(pageFile,
"<IMG width=\"%d\" height=\"%d\" src=\"%s%03d.%s\" alt=\"background image\">\n",
pageWidth, pageHeight, tmp->getCString(),
(page-firstPage+1), imgExt->getCString());
}
delete tmp;
GooString *str, *str1 = NULL;
for(HtmlString *tmp1=yxStrings;tmp1;tmp1=tmp1->yxNext){
if (tmp1->htext){
str=new GooString(tmp1->htext);
fprintf(pageFile,
"<DIV style=\"position:absolute;top:%d;left:%d\">",
xoutRound(tmp1->yMin),
xoutRound(tmp1->xMin));
fputs("<nobr>",pageFile);
if (!singleHtml)
str1=fonts->getCSStyle(tmp1->fontpos, str);
else
str1=fonts->getCSStyle(tmp1->fontpos, str, page);
fputs(str1->getCString(),pageFile);
delete str;
delete str1;
fputs("</nobr></DIV>\n",pageFile);
}
}
fputs("</DIV>\n", pageFile);
if( !noframes )
{
fputs("</BODY>\n</HTML>\n",pageFile);
fclose(pageFile);
}
}
void HtmlPage::dump(FILE *f, int pageNum)
{
if (complexMode || singleHtml)
{
if (xml) dumpAsXML(f, pageNum);
if (!xml) dumpComplex(f, pageNum);
}
else
{
fprintf(f,"<A name=%d></a>",pageNum);
// Loop over the list of image names on this page
int listlen=HtmlOutputDev::imgList->getLength();
for (int i = 0; i < listlen; i++) {
GooString *fName= (GooString *)HtmlOutputDev::imgList->del(0);
fprintf(f,"<IMG src=\"%s\"><br>\n",fName->getCString());
delete fName;
}
HtmlOutputDev::imgNum=1;
GooString* str;
for(HtmlString *tmp=yxStrings;tmp;tmp=tmp->yxNext){
if (tmp->htext){
str=new GooString(tmp->htext);
fputs(str->getCString(),f);
delete str;
fputs("<br>\n",f);
}
}
fputs("<hr>\n",f);
}
}
void HtmlPage::clear() {
HtmlString *p1, *p2;
if (curStr) {
delete curStr;
curStr = NULL;
}
for (p1 = yxStrings; p1; p1 = p2) {
p2 = p1->yxNext;
delete p1;
}
yxStrings = NULL;
xyStrings = NULL;
yxCur1 = yxCur2 = NULL;
if( !noframes )
{
delete fonts;
fonts=new HtmlFontAccu();
fontsPageMarker = 0;
}
else
{
fontsPageMarker = fonts->size();
}
delete links;
links=new HtmlLinks();
}
void HtmlPage::setDocName(char *fname){
DocName=new GooString(fname);
}
//------------------------------------------------------------------------
// HtmlMetaVar
//------------------------------------------------------------------------
HtmlMetaVar::HtmlMetaVar(char *_name, char *_content)
{
name = new GooString(_name);
content = new GooString(_content);
}
HtmlMetaVar::~HtmlMetaVar()
{
delete name;
delete content;
}
GooString* HtmlMetaVar::toString()
{
GooString *result = new GooString("<META name=\"");
result->append(name);
result->append("\" content=\"");
result->append(content);
result->append("\">");
return result;
}
//------------------------------------------------------------------------
// HtmlOutputDev
//------------------------------------------------------------------------
static char* HtmlEncodings[][2] = {
{"Latin1", "ISO-8859-1"},
{NULL, NULL}
};
char* HtmlOutputDev::mapEncodingToHtml(GooString* encoding)
{
char* enc = encoding->getCString();
for(int i = 0; HtmlEncodings[i][0] != NULL; i++)
{
if( strcmp(enc, HtmlEncodings[i][0]) == 0 )
{
return HtmlEncodings[i][1];
}
}
return enc;
}
void HtmlOutputDev::doFrame(int firstPage){
GooString* fName=new GooString(Docname);
char* htmlEncoding;
fName->append(".html");
if (!(fContentsFrame = fopen(fName->getCString(), "w"))){
error(-1, "Couldn't open html file '%s'", fName->getCString());
delete fName;
return;
}
delete fName;
fName=basename(Docname);
fputs(DOCTYPE_FRAMES, fContentsFrame);
fputs("\n<HTML>",fContentsFrame);
fputs("\n<HEAD>",fContentsFrame);
fprintf(fContentsFrame,"\n<TITLE>%s</TITLE>",docTitle->getCString());
htmlEncoding = mapEncodingToHtml(globalParams->getTextEncodingName());
fprintf(fContentsFrame, "\n<META http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">\n", htmlEncoding);
dumpMetaVars(fContentsFrame);
fprintf(fContentsFrame, "</HEAD>\n");
fputs("<FRAMESET cols=\"100,*\">\n",fContentsFrame);
fprintf(fContentsFrame,"<FRAME name=\"links\" src=\"%s_ind.html\">\n",fName->getCString());
fputs("<FRAME name=\"contents\" src=",fContentsFrame);
if (complexMode)
fprintf(fContentsFrame,"\"%s-%d.html\"",fName->getCString(), firstPage);
else
fprintf(fContentsFrame,"\"%ss.html\"",fName->getCString());
fputs(">\n</FRAMESET>\n</HTML>\n",fContentsFrame);
delete fName;
fclose(fContentsFrame);
}
HtmlOutputDev::HtmlOutputDev(char *fileName, char *title,
char *author, char *keywords, char *subject, char *date,
char *extension,
GBool rawOrder, int firstPage, GBool outline)
{
char *htmlEncoding;
fContentsFrame = NULL;
docTitle = new GooString(title);
pages = NULL;
dumpJPEG=gTrue;
//write = gTrue;
this->rawOrder = rawOrder;
this->doOutline = outline;
ok = gFalse;
imgNum=1;
//this->firstPage = firstPage;
//pageNum=firstPage;
// open file
needClose = gFalse;
pages = new HtmlPage(rawOrder, extension);
glMetaVars = new GooList();
glMetaVars->append(new HtmlMetaVar("generator", "pdftohtml 0.36"));
if( author ) glMetaVars->append(new HtmlMetaVar("author", author));
if( keywords ) glMetaVars->append(new HtmlMetaVar("keywords", keywords));
if( date ) glMetaVars->append(new HtmlMetaVar("date", date));
if( subject ) glMetaVars->append(new HtmlMetaVar("subject", subject));
maxPageWidth = 0;
maxPageHeight = 0;
pages->setDocName(fileName);
Docname=new GooString (fileName);
// for non-xml output (complex or simple) with frames generate the left frame
if(!xml && !noframes)
{
if (!singleHtml)
{
GooString* left=new GooString(fileName);
left->append("_ind.html");
doFrame(firstPage);
if (!(fContentsFrame = fopen(left->getCString(), "w")))
{
error(-1, "Couldn't open html file '%s'", left->getCString());
delete left;
return;
}
delete left;
fputs(DOCTYPE, fContentsFrame);
fputs("<HTML>\n<HEAD>\n<TITLE></TITLE>\n</HEAD>\n<BODY>\n",fContentsFrame);
if (doOutline)
{
GooString *str = basename(Docname);
fprintf(fContentsFrame, "<A href=\"%s%s\" target=\"contents\">Outline</a><br>", str->getCString(), complexMode ? "-outline.html" : "s.html#outline");
delete str;
}
}
if (!complexMode)
{ /* not in complex mode */
GooString* right=new GooString(fileName);
right->append("s.html");
if (!(page=fopen(right->getCString(),"w"))){
error(-1, "Couldn't open html file '%s'", right->getCString());
delete right;
return;
}
delete right;
fputs(DOCTYPE, page);
fputs("<HTML>\n<HEAD>\n<TITLE></TITLE>\n</HEAD>\n<BODY>\n",page);
}
}
if (noframes) {
if (stout) page=stdout;
else {
GooString* right=new GooString(fileName);
if (!xml) right->append(".html");
if (xml) right->append(".xml");
if (!(page=fopen(right->getCString(),"w"))){
error(-1, "Couldn't open html file '%s'", right->getCString());
delete right;
return;
}
delete right;
}
htmlEncoding = mapEncodingToHtml(globalParams->getTextEncodingName());
if (xml)
{
fprintf(page, "<?xml version=\"1.0\" encoding=\"%s\"?>\n", htmlEncoding);
fputs("<!DOCTYPE pdf2xml SYSTEM \"pdf2xml.dtd\">\n\n", page);
fputs("<pdf2xml>\n",page);
}
else
{
fprintf(page,"%s\n<HTML>\n<HEAD>\n<TITLE>%s</TITLE>\n",
DOCTYPE, docTitle->getCString());
fprintf(page, "<META http-equiv=\"Content-Type\" content=\"text/html; charset=%s\">\n", htmlEncoding);
dumpMetaVars(page);
fprintf(page,"</HEAD>\n");
fprintf(page,"<BODY bgcolor=\"#A0A0A0\" vlink=\"blue\" link=\"blue\">\n");
}
}
ok = gTrue;
}
HtmlOutputDev::~HtmlOutputDev() {
HtmlFont::clear();
delete Docname;
delete docTitle;
deleteGooList(glMetaVars, HtmlMetaVar);
if (fContentsFrame){
fputs("</BODY>\n</HTML>\n",fContentsFrame);
fclose(fContentsFrame);
}
if (xml) {
fputs("</pdf2xml>\n",page);
fclose(page);
} else
if ( !complexMode || xml || noframes )
{
fputs("</BODY>\n</HTML>\n",page);
fclose(page);
}
if (pages)
delete pages;
}
void HtmlOutputDev::startPage(int pageNum, GfxState *state) {
#if 0
if (mode&&!xml){
if (write){
write=gFalse;
GooString* fname=Dirname(Docname);
fname->append("image.log");
if((tin=fopen(getFileNameFromPath(fname->getCString(),fname->getLength()),"w"))==NULL){
printf("Error : can not open %s",fname);
exit(1);
}
delete fname;
// if(state->getRotation()!=0)
// fprintf(tin,"ROTATE=%d rotate %d neg %d neg translate\n",state->getRotation(),state->getX1(),-state->getY1());
// else
fprintf(tin,"ROTATE=%d neg %d neg translate\n",state->getX1(),state->getY1());
}
}
#endif
this->pageNum = pageNum;
GooString *str=basename(Docname);
pages->clear();
if(!noframes)
{
if (fContentsFrame)
{
if (complexMode)
fprintf(fContentsFrame,"<A href=\"%s-%d.html\"",str->getCString(),pageNum);
else
fprintf(fContentsFrame,"<A href=\"%ss.html#%d\"",str->getCString(),pageNum);
fprintf(fContentsFrame," target=\"contents\" >Page %d</a><br>\n",pageNum);
}
}
pages->pageWidth=static_cast<int>(state->getPageWidth());
pages->pageHeight=static_cast<int>(state->getPageHeight());
delete str;
}
void HtmlOutputDev::endPage() {
Links *linksList = docPage->getLinks(catalog);
for (int i = 0; i < linksList->getNumLinks(); ++i)
{
doProcessLink(linksList->getLink(i));
}
delete linksList;
pages->conv();
pages->coalesce();
pages->dump(page, pageNum);
// I don't yet know what to do in the case when there are pages of different
// sizes and we want complex output: running ghostscript many times
// seems very inefficient. So for now I'll just use last page's size
maxPageWidth = pages->pageWidth;
maxPageHeight = pages->pageHeight;
//if(!noframes&&!xml) fputs("<br>\n", fContentsFrame);
if(!stout && !globalParams->getErrQuiet()) printf("Page-%d\n",(pageNum));
}
void HtmlOutputDev::updateFont(GfxState *state) {
pages->updateFont(state);
}
void HtmlOutputDev::beginString(GfxState *state, GooString *s) {
pages->beginString(state, s);
}
void HtmlOutputDev::endString(GfxState *state) {
pages->endString();
}
void HtmlOutputDev::drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode code, int /*nBytes*/, Unicode *u, int uLen)
{
if ( !showHidden && (state->getRender() & 3) == 3) {
return;
}
pages->addChar(state, x, y, dx, dy, originX, originY, u, uLen);
}
void HtmlOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, GBool invert,
GBool interpolate, GBool inlineImg) {
if (ignore||complexMode) {
OutputDev::drawImageMask(state, ref, str, width, height, invert, interpolate, inlineImg);
return;
}
FILE *f1;
int c;
int x0, y0; // top left corner of image
int w0, h0, w1, h1; // size of image
double xt, yt, wt, ht;
GBool rotate, xFlip, yFlip;
// get image position and size
state->transform(0, 0, &xt, &yt);
state->transformDelta(1, 1, &wt, &ht);
if (wt > 0) {
x0 = xoutRound(xt);
w0 = xoutRound(wt);
} else {
x0 = xoutRound(xt + wt);
w0 = xoutRound(-wt);
}
if (ht > 0) {
y0 = xoutRound(yt);
h0 = xoutRound(ht);
} else {
y0 = xoutRound(yt + ht);
h0 = xoutRound(-ht);
}
state->transformDelta(1, 0, &xt, &yt);
rotate = fabs(xt) < fabs(yt);
if (rotate) {
w1 = h0;
h1 = w0;
xFlip = ht < 0;
yFlip = wt > 0;
} else {
w1 = w0;
h1 = h0;
xFlip = wt < 0;
yFlip = ht > 0;
}
// dump JPEG file
if (dumpJPEG && str->getKind() == strDCT) {
GooString *fName=new GooString(Docname);
fName->append("-");
GooString *pgNum=GooString::fromInt(pageNum);
GooString *imgnum=GooString::fromInt(imgNum);
// open the image file
fName->append(pgNum)->append("_")->append(imgnum)->append(".jpg");
delete pgNum;
delete imgnum;
++imgNum;
if (!(f1 = fopen(fName->getCString(), "wb"))) {
error(-1, "Couldn't open image file '%s'", fName->getCString());
delete fName;
return;
}
// initialize stream
str = ((DCTStream *)str)->getRawStream();
str->reset();
// copy the stream
while ((c = str->getChar()) != EOF)
fputc(c, f1);
fclose(f1);
if (fName) imgList->append(fName);
}
else {
OutputDev::drawImageMask(state, ref, str, width, height, invert, interpolate, inlineImg);
}
}
void HtmlOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
GBool interpolate, int *maskColors, GBool inlineImg) {
if (ignore||complexMode) {
OutputDev::drawImage(state, ref, str, width, height, colorMap, interpolate,
maskColors, inlineImg);
return;
}
FILE *f1;
int c;
int x0, y0; // top left corner of image
int w0, h0, w1, h1; // size of image
double xt, yt, wt, ht;
GBool rotate, xFlip, yFlip;
// get image position and size
state->transform(0, 0, &xt, &yt);
state->transformDelta(1, 1, &wt, &ht);
if (wt > 0) {
x0 = xoutRound(xt);
w0 = xoutRound(wt);
} else {
x0 = xoutRound(xt + wt);
w0 = xoutRound(-wt);
}
if (ht > 0) {
y0 = xoutRound(yt);
h0 = xoutRound(ht);
} else {
y0 = xoutRound(yt + ht);
h0 = xoutRound(-ht);
}
state->transformDelta(1, 0, &xt, &yt);
rotate = fabs(xt) < fabs(yt);
if (rotate) {
w1 = h0;
h1 = w0;
xFlip = ht < 0;
yFlip = wt > 0;
} else {
w1 = w0;
h1 = h0;
xFlip = wt < 0;
yFlip = ht > 0;
}
/*if( !globalParams->getErrQuiet() )
printf("image stream of kind %d\n", str->getKind());*/
// dump JPEG file
if (dumpJPEG && str->getKind() == strDCT) {
GooString *fName=new GooString(Docname);
fName->append("-");
GooString *pgNum= GooString::fromInt(pageNum);
GooString *imgnum= GooString::fromInt(imgNum);
// open the image file
fName->append(pgNum)->append("_")->append(imgnum)->append(".jpg");
delete pgNum;
delete imgnum;
++imgNum;
if (!(f1 = fopen(fName->getCString(), "wb"))) {
error(-1, "Couldn't open image file '%s'", fName->getCString());
delete fName;
return;
}
// initialize stream
str = ((DCTStream *)str)->getRawStream();
str->reset();
// copy the stream
while ((c = str->getChar()) != EOF)
fputc(c, f1);
fclose(f1);
if (fName) imgList->append(fName);
}
else {
#ifdef ENABLE_LIBPNG
// Dump the image as a PNG file. Much of the PNG code
// comes from an example by Guillaume Cottenceau.
Guchar *p;
GfxRGB rgb;
png_byte *row = (png_byte *) malloc(3 * width); // 3 bytes/pixel: RGB
png_bytep *row_pointer= &row;
// Create the image filename
GooString *fName=new GooString(Docname);
fName->append("-");
GooString *pgNum= GooString::fromInt(pageNum);
GooString *imgnum= GooString::fromInt(imgNum);
fName->append(pgNum)->append("_")->append(imgnum)->append(".png");
delete pgNum;
delete imgnum;
// Open the image file
if (!(f1 = fopen(fName->getCString(), "wb"))) {
error(-1, "Couldn't open image file '%s'", fName->getCString());
delete fName;
return;
}
PNGWriter *writer = new PNGWriter();
// TODO can we calculate the resolution of the image?
if (!writer->init(f1, width, height, 72, 72)) {
delete writer;
fclose(f1);
return;
}
// Initialize the image stream
ImageStream *imgStr = new ImageStream(str, width,
colorMap->getNumPixelComps(), colorMap->getBits());
imgStr->reset();
// For each line...
for (int y = 0; y < height; y++) {
// Convert into a PNG row
p = imgStr->getLine();
for (int x = 0; x < width; x++) {
colorMap->getRGB(p, &rgb);
// Write the RGB pixels into the row
row[3*x]= colToByte(rgb.r);
row[3*x+1]= colToByte(rgb.g);
row[3*x+2]= colToByte(rgb.b);
p += colorMap->getNumPixelComps();
}
if (!writer->writeRow(row_pointer)) {
delete writer;
fclose(f1);
return;
}
}
writer->close();
delete writer;
fclose(f1);
free(row);
imgList->append(fName);
++imgNum;
imgStr->close();
delete imgStr;
#else
OutputDev::drawImage(state, ref, str, width, height, colorMap, interpolate,
maskColors, inlineImg);
#endif
}
}
void HtmlOutputDev::doProcessLink(Link* link){
double _x1,_y1,_x2,_y2;
int x1,y1,x2,y2;
link->getRect(&_x1,&_y1,&_x2,&_y2);
cvtUserToDev(_x1,_y1,&x1,&y1);
cvtUserToDev(_x2,_y2,&x2,&y2);
GooString* _dest=getLinkDest(link,catalog);
HtmlLink t((double) x1,(double) y2,(double) x2,(double) y1,_dest);
pages->AddLink(t);
delete _dest;
}
GooString* HtmlOutputDev::getLinkDest(Link *link,Catalog* catalog){
char *p;
switch(link->getAction()->getKind())
{
case actionGoTo:
{
GooString* file=basename(Docname);
int page=1;
LinkGoTo *ha=(LinkGoTo *)link->getAction();
LinkDest *dest=NULL;
if (ha->getDest()!=NULL)
dest=ha->getDest()->copy();
else if (ha->getNamedDest()!=NULL)
dest=catalog->findDest(ha->getNamedDest());
if (dest){
if (dest->isPageRef()){
Ref pageref=dest->getPageRef();
page=catalog->findPage(pageref.num,pageref.gen);
}
else {
page=dest->getPageNum();
}
delete dest;
GooString *str=GooString::fromInt(page);
/* complex simple
frames file-4.html files.html#4
noframes file.html#4 file.html#4
*/
if (noframes)
{
file->append(".html#");
file->append(str);
}
else
{
if( complexMode )
{
file->append("-");
file->append(str);
file->append(".html");
}
else
{
file->append("s.html#");
file->append(str);
}
}
if (printCommands) printf(" link to page %d ",page);
delete str;
return file;
}
else
{
return new GooString();
}
}
case actionGoToR:
{
LinkGoToR *ha=(LinkGoToR *) link->getAction();
LinkDest *dest=NULL;
int page=1;
GooString *file=new GooString();
if (ha->getFileName()){
delete file;
file=new GooString(ha->getFileName()->getCString());
}
if (ha->getDest()!=NULL) dest=ha->getDest()->copy();
if (dest&&file){
if (!(dest->isPageRef())) page=dest->getPageNum();
delete dest;
if (printCommands) printf(" link to page %d ",page);
if (printHtml){
p=file->getCString()+file->getLength()-4;
if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")){
file->del(file->getLength()-4,4);
file->append(".html");
}
file->append('#');
file->append(GooString::fromInt(page));
}
}
if (printCommands && file) printf("filename %s\n",file->getCString());
return file;
}
case actionURI:
{
LinkURI *ha=(LinkURI *) link->getAction();
GooString* file=new GooString(ha->getURI()->getCString());
// printf("uri : %s\n",file->getCString());
return file;
}
case actionLaunch:
{
LinkLaunch *ha=(LinkLaunch *) link->getAction();
GooString* file=new GooString(ha->getFileName()->getCString());
if (printHtml) {
p=file->getCString()+file->getLength()-4;
if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")){
file->del(file->getLength()-4,4);
file->append(".html");
}
if (printCommands) printf("filename %s",file->getCString());
return file;
}
}
default:
return new GooString();
}
}
void HtmlOutputDev::dumpMetaVars(FILE *file)
{
GooString *var;
for(int i = 0; i < glMetaVars->getLength(); i++)
{
HtmlMetaVar *t = (HtmlMetaVar*)glMetaVars->get(i);
var = t->toString();
fprintf(file, "%s\n", var->getCString());
delete var;
}
}
GBool HtmlOutputDev::dumpDocOutline(Catalog* catalog)
{
FILE * output = NULL;
GBool bClose = gFalse;
if (!ok || xml)
return gFalse;
Object *outlines = catalog->getOutline();
if (!outlines->isDict())
return gFalse;
if (!complexMode && !xml)
{
output = page;
}
else if (complexMode && !xml)
{
if (noframes)
{
output = page;
fputs("<hr>\n", output);
}
else
{
GooString *str = Docname->copy();
str->append("-outline.html");
output = fopen(str->getCString(), "w");
if (output == NULL)
return gFalse;
delete str;
bClose = gTrue;
fputs("<HTML>\n<HEAD>\n<TITLE>Document Outline</TITLE>\n</HEAD>\n<BODY>\n", output);
}
}
GBool done = newOutlineLevel(output, outlines, catalog);
if (done && !complexMode)
fputs("<hr>\n", output);
if (bClose)
{
fputs("</BODY>\n</HTML>\n", output);
fclose(output);
}
return done;
}
GBool HtmlOutputDev::newOutlineLevel(FILE *output, Object *node, Catalog* catalog, int level)
{
Object curr, next;
GBool atLeastOne = gFalse;
if (node->dictLookup("First", &curr)->isDict()) {
if (level == 1)
{
fputs("<A name=\"outline\"></a>", output);
fputs("<h1>Document Outline</h1>\n", output);
}
fputs("<ul>",output);
do {
// get title, give up if not found
Object title;
if (curr.dictLookup("Title", &title)->isNull()) {
title.free();
break;
}
GooString *titleStr = new GooString(title.getString());
title.free();
// get corresponding link
// Note: some code duplicated from HtmlOutputDev::getLinkDest().
GooString *linkName = NULL;;
Object dest;
if (!curr.dictLookup("Dest", &dest)->isNull()) {
LinkGoTo *link = new LinkGoTo(&dest);
LinkDest *linkdest=NULL;
if (link->getDest()!=NULL)
linkdest=link->getDest()->copy();
else if (link->getNamedDest()!=NULL)
linkdest=catalog->findDest(link->getNamedDest());
delete link;
if (linkdest) {
int page;
if (linkdest->isPageRef()) {
Ref pageref=linkdest->getPageRef();
page=catalog->findPage(pageref.num,pageref.gen);
} else {
page=linkdest->getPageNum();
}
delete linkdest;
/* complex simple
frames file-4.html files.html#4
noframes file.html#4 file.html#4
*/
linkName=basename(Docname);
GooString *str=GooString::fromInt(page);
if (noframes) {
linkName->append(".html#");
linkName->append(str);
} else {
if( complexMode ) {
linkName->append("-");
linkName->append(str);
linkName->append(".html");
} else {
linkName->append("s.html#");
linkName->append(str);
}
}
delete str;
}
}
dest.free();
fputs("<li>",output);
if (linkName)
fprintf(output,"<A href=\"%s\">", linkName->getCString());
fputs(titleStr->getCString(),output);
if (linkName) {
fputs("</A>",output);
delete linkName;
}
fputs("\n",output);
delete titleStr;
atLeastOne = gTrue;
newOutlineLevel(output, &curr, catalog, level+1);
curr.dictLookup("Next", &next);
curr.free();
curr = next;
} while(curr.isDict());
fputs("</ul>",output);
}
curr.free();
return atLeastOne;
}
Server : Apache/2.4.41 (Ubuntu)