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//========================================================================
//
// Outline.cc
//
// Copyright 2002 Glyph & Cog, LLC
//
//========================================================================
#include "aconf.h"
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include "gmem.h"
#include "gstring.h"
#include "glist.h"
#include "link.h"
#include "pdfdocencoding.h"
#include "outline.h"
//------------------------------------------------------------------------
Outline::Outline(Object *outlineObj, XRef *xref) {
Object first;
items = NULL;
if (!outlineObj->isDict()) {
return;
}
items = OutlineItem::readItemList(outlineObj->dictLookupNF("First", &first),
xref);
first.free();
}
Outline::~Outline() {
if (items) {
deleteGList(items, OutlineItem);
}
}
//------------------------------------------------------------------------
OutlineItem::OutlineItem(Dict *dict, XRef *xrefA) {
Object obj1;
GString *s;
int i;
xref = xrefA;
title = NULL;
action = NULL;
kids = NULL;
if (dict->lookup("Title", &obj1)->isString()) {
s = obj1.getString();
if ((s->getChar(0) & 0xff) == 0xfe &&
(s->getChar(1) & 0xff) == 0xff) {
titleLen = (s->getLength() - 2) / 2;
title = (Unicode *)gmalloc(titleLen * sizeof(Unicode));
for (i = 0; i < titleLen; ++i) {
title[i] = ((s->getChar(2 + 2*i) & 0xff) << 8) |
(s->getChar(3 + 2*i) & 0xff);
}
} else {
titleLen = s->getLength();
title = (Unicode *)gmalloc(titleLen * sizeof(Unicode));
for (i = 0; i < titleLen; ++i) {
title[i] = pdfDocEncoding[s->getChar(i) & 0xff];
}
}
}
obj1.free();
if (!dict->lookup("Dest", &obj1)->isNull()) {
action = LinkAction::parseDest(&obj1);
} else {
obj1.free();
if (dict->lookup("A", &obj1)) {
action = LinkAction::parseAction(&obj1);
}
}
obj1.free();
dict->lookupNF("First", &firstRef);
dict->lookupNF("Next", &nextRef);
startsOpen = gFalse;
if (dict->lookup("Count", &obj1)->isInt()) {
if (obj1.getInt() > 0) {
startsOpen = gTrue;
}
}
obj1.free();
}
OutlineItem::~OutlineItem() {
close();
if (title) {
gfree(title);
}
if (action) {
delete action;
}
firstRef.free();
nextRef.free();
}
GList *OutlineItem::readItemList(Object *itemRef, XRef *xrefA) {
GList *items;
OutlineItem *item;
Object obj;
Object *p;
items = new GList();
p = itemRef;
while (p->isRef()) {
if (!p->fetch(xrefA, &obj)->isDict()) {
obj.free();
break;
}
item = new OutlineItem(obj.getDict(), xrefA);
obj.free();
items->append(item);
p = &item->nextRef;
}
return items;
}
void OutlineItem::open() {
if (!kids) {
kids = readItemList(&firstRef, xref);
}
}
void OutlineItem::close() {
if (kids) {
deleteGList(kids, OutlineItem);
kids = NULL;
}
}
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