X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=pdf2swf%2Fxpdf%2FCatalog.cc;fp=pdf2swf%2Fxpdf%2FCatalog.cc;h=0000000000000000000000000000000000000000;hp=fd235d63c4b8437582ce80e03e86c411b7e6dfb4;hb=5a005ef586b9000810156a961b9622c903dce988;hpb=c26ca847941ca0acfc9f3b4bdc519d904ba09a39 diff --git a/pdf2swf/xpdf/Catalog.cc b/pdf2swf/xpdf/Catalog.cc deleted file mode 100644 index fd235d6..0000000 --- a/pdf2swf/xpdf/Catalog.cc +++ /dev/null @@ -1,353 +0,0 @@ -//======================================================================== -// -// Catalog.cc -// -// Copyright 1996-2003 Glyph & Cog, LLC -// -//======================================================================== - -#include - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - -#include -#include "gmem.h" -#include "Object.h" -#include "XRef.h" -#include "Array.h" -#include "Dict.h" -#include "Page.h" -#include "Error.h" -#include "Link.h" -#include "Catalog.h" - -//------------------------------------------------------------------------ -// Catalog -//------------------------------------------------------------------------ - -Catalog::Catalog(XRef *xrefA) { - Object catDict, pagesDict; - Object obj, obj2; - int numPages0; - int i; - - ok = gTrue; - xref = xrefA; - pages = NULL; - pageRefs = NULL; - numPages = pagesSize = 0; - baseURI = NULL; - - xref->getCatalog(&catDict); - if (!catDict.isDict()) { - error(-1, "Catalog object is wrong type (%s)", catDict.getTypeName()); - goto err1; - } - - // read page tree - catDict.dictLookup("Pages", &pagesDict); - // This should really be isDict("Pages"), but I've seen at least one - // PDF file where the /Type entry is missing. - if (!pagesDict.isDict()) { - error(-1, "Top-level pages object is wrong type (%s)", - pagesDict.getTypeName()); - goto err2; - } - pagesDict.dictLookup("Count", &obj); - // some PDF files actually use real numbers here ("/Count 9.0") - if (!obj.isNum()) { - error(-1, "Page count in top-level pages object is wrong type (%s)", - obj.getTypeName()); - goto err3; - } - pagesSize = numPages0 = (int)obj.getNum(); - obj.free(); - pages = (Page **)gmallocn(pagesSize, sizeof(Page *)); - pageRefs = (Ref *)gmallocn(pagesSize, sizeof(Ref)); - for (i = 0; i < pagesSize; ++i) { - pages[i] = NULL; - pageRefs[i].num = -1; - pageRefs[i].gen = -1; - } - numPages = readPageTree(pagesDict.getDict(), NULL, 0); - if (numPages != numPages0) { - error(-1, "Page count in top-level pages object is incorrect"); - } - pagesDict.free(); - - // read named destination dictionary - catDict.dictLookup("Dests", &dests); - - // read root of named destination tree - if (catDict.dictLookup("Names", &obj)->isDict()) - obj.dictLookup("Dests", &nameTree); - else - nameTree.initNull(); - obj.free(); - - // read base URI - if (catDict.dictLookup("URI", &obj)->isDict()) { - if (obj.dictLookup("Base", &obj2)->isString()) { - baseURI = obj2.getString()->copy(); - } - obj2.free(); - } - obj.free(); - - // get the metadata stream - catDict.dictLookup("Metadata", &metadata); - - // get the structure tree root - catDict.dictLookup("StructTreeRoot", &structTreeRoot); - - // get the outline dictionary - catDict.dictLookup("Outlines", &outline); - - // get the AcroForm dictionary - catDict.dictLookup("AcroForm", &acroForm); - - catDict.free(); - return; - - err3: - obj.free(); - err2: - pagesDict.free(); - err1: - catDict.free(); - dests.initNull(); - nameTree.initNull(); - ok = gFalse; -} - -Catalog::~Catalog() { - int i; - - if (pages) { - for (i = 0; i < pagesSize; ++i) { - if (pages[i]) { - delete pages[i]; - } - } - gfree(pages); - gfree(pageRefs); - } - dests.free(); - nameTree.free(); - if (baseURI) { - delete baseURI; - } - metadata.free(); - structTreeRoot.free(); - outline.free(); - acroForm.free(); -} - -GString *Catalog::readMetadata() { - GString *s; - Dict *dict; - Object obj; - int c; - - if (!metadata.isStream()) { - return NULL; - } - dict = metadata.streamGetDict(); - if (!dict->lookup("Subtype", &obj)->isName("XML")) { - error(-1, "Unknown Metadata type: '%s'", - obj.isName() ? obj.getName() : "???"); - } - obj.free(); - s = new GString(); - metadata.streamReset(); - while ((c = metadata.streamGetChar()) != EOF) { - s->append(c); - } - metadata.streamClose(); - return s; -} - -int Catalog::readPageTree(Dict *pagesDict, PageAttrs *attrs, int start) { - Object kids; - Object kid; - Object kidRef; - PageAttrs *attrs1, *attrs2; - Page *page; - int i, j; - - attrs1 = new PageAttrs(attrs, pagesDict); - pagesDict->lookup("Kids", &kids); - if (!kids.isArray()) { - error(-1, "Kids object (page %d) is wrong type (%s)", - start+1, kids.getTypeName()); - goto err1; - } - for (i = 0; i < kids.arrayGetLength(); ++i) { - kids.arrayGet(i, &kid); - if (kid.isDict("Page")) { - attrs2 = new PageAttrs(attrs1, kid.getDict()); - page = new Page(xref, start+1, kid.getDict(), attrs2); - if (!page->isOk()) { - ++start; - goto err3; - } - if (start >= pagesSize) { - pagesSize += 32; - pages = (Page **)greallocn(pages, pagesSize, sizeof(Page *)); - pageRefs = (Ref *)greallocn(pageRefs, pagesSize, sizeof(Ref)); - for (j = pagesSize - 32; j < pagesSize; ++j) { - pages[j] = NULL; - pageRefs[j].num = -1; - pageRefs[j].gen = -1; - } - } - pages[start] = page; - kids.arrayGetNF(i, &kidRef); - if (kidRef.isRef()) { - pageRefs[start].num = kidRef.getRefNum(); - pageRefs[start].gen = kidRef.getRefGen(); - } - kidRef.free(); - ++start; - // This should really be isDict("Pages"), but I've seen at least one - // PDF file where the /Type entry is missing. - } else if (kid.isDict()) { - if ((start = readPageTree(kid.getDict(), attrs1, start)) - < 0) - goto err2; - } else { - error(-1, "Kid object (page %d) is wrong type (%s)", - start+1, kid.getTypeName()); - } - kid.free(); - } - delete attrs1; - kids.free(); - return start; - - err3: - delete page; - err2: - kid.free(); - err1: - kids.free(); - delete attrs1; - ok = gFalse; - return -1; -} - -int Catalog::findPage(int num, int gen) { - int i; - - for (i = 0; i < numPages; ++i) { - if (pageRefs[i].num == num && pageRefs[i].gen == gen) - return i + 1; - } - return 0; -} - -LinkDest *Catalog::findDest(GString *name) { - LinkDest *dest; - Object obj1, obj2; - GBool found; - - // try named destination dictionary then name tree - found = gFalse; - if (dests.isDict()) { - if (!dests.dictLookup(name->getCString(), &obj1)->isNull()) - found = gTrue; - else - obj1.free(); - } - if (!found && nameTree.isDict()) { - if (!findDestInTree(&nameTree, name, &obj1)->isNull()) - found = gTrue; - else - obj1.free(); - } - if (!found) - return NULL; - - // construct LinkDest - dest = NULL; - if (obj1.isArray()) { - dest = new LinkDest(obj1.getArray()); - } else if (obj1.isDict()) { - if (obj1.dictLookup("D", &obj2)->isArray()) - dest = new LinkDest(obj2.getArray()); - else - error(-1, "Bad named destination value"); - obj2.free(); - } else { - error(-1, "Bad named destination value"); - } - obj1.free(); - if (dest && !dest->isOk()) { - delete dest; - dest = NULL; - } - - return dest; -} - -Object *Catalog::findDestInTree(Object *tree, GString *name, Object *obj) { - Object names, name1; - Object kids, kid, limits, low, high; - GBool done, found; - int cmp, i; - - // leaf node - if (tree->dictLookup("Names", &names)->isArray()) { - done = found = gFalse; - for (i = 0; !done && i < names.arrayGetLength(); i += 2) { - if (names.arrayGet(i, &name1)->isString()) { - cmp = name->cmp(name1.getString()); - if (cmp == 0) { - names.arrayGet(i+1, obj); - found = gTrue; - done = gTrue; - } else if (cmp < 0) { - done = gTrue; - } - } - name1.free(); - } - names.free(); - if (!found) - obj->initNull(); - return obj; - } - names.free(); - - // root or intermediate node - done = gFalse; - if (tree->dictLookup("Kids", &kids)->isArray()) { - for (i = 0; !done && i < kids.arrayGetLength(); ++i) { - if (kids.arrayGet(i, &kid)->isDict()) { - if (kid.dictLookup("Limits", &limits)->isArray()) { - if (limits.arrayGet(0, &low)->isString() && - name->cmp(low.getString()) >= 0) { - if (limits.arrayGet(1, &high)->isString() && - name->cmp(high.getString()) <= 0) { - findDestInTree(&kid, name, obj); - done = gTrue; - } - high.free(); - } - low.free(); - } - limits.free(); - } - kid.free(); - } - } - kids.free(); - - // name was outside of ranges of all kids - if (!done) - obj->initNull(); - - return obj; -}