upgrade to xpdf 3.00.

[swftools.git] / pdf2swf / xpdf / Outline.cc

diff --git a/pdf2swf/xpdf/Outline.cc b/pdf2swf/xpdf/Outline.cc
new file mode 100644 (file)
index 0000000..04891f3
--- /dev/null
+++ b/pdf2swf/xpdf/Outline.cc
@@ -0,0 +1,151 @@
+//========================================================================
+//
+// Outline.cc
+//
+// Copyright 2002-2003 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, last;
+
+  items = NULL;
+  if (!outlineObj->isDict()) {
+    return;
+  }
+  items = OutlineItem::readItemList(outlineObj->dictLookupNF("First", &first),
+                                   outlineObj->dictLookupNF("Last", &last),
+                                   xref);
+  first.free();
+  last.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];
+      }
+    }
+  } else {
+    titleLen = 0;
+  }
+  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("Last", &lastRef);
+  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();
+  lastRef.free();
+  nextRef.free();
+}
+
+GList *OutlineItem::readItemList(Object *firstItemRef, Object *lastItemRef,
+                                XRef *xrefA) {
+  GList *items;
+  OutlineItem *item;
+  Object obj;
+  Object *p;
+
+  items = new GList();
+  p = firstItemRef;
+  while (p->isRef()) {
+    if (!p->fetch(xrefA, &obj)->isDict()) {
+      obj.free();
+      break;
+    }
+    item = new OutlineItem(obj.getDict(), xrefA);
+    obj.free();
+    items->append(item);
+    if (p->getRef().num == lastItemRef->getRef().num &&
+       p->getRef().gen == lastItemRef->getRef().gen) {
+      break;
+    }
+    p = &item->nextRef;
+  }
+  return items;
+}
+
+void OutlineItem::open() {
+  if (!kids) {
+    kids = readItemList(&firstRef, &lastRef, xref);
+  }
+}
+
+void OutlineItem::close() {
+  if (kids) {
+    deleteGList(kids, OutlineItem);
+    kids = NULL;
+  }
+}