Initial revision

1 files changed, 217 insertions, 0 deletions

diff --git a/pdf/xpdf/Object.cc b/pdf/xpdf/Object.cc
new file mode 100644
index 0000000..777f526
--- /dev/null
+++ b/pdf/xpdf/Object.cc
@@ -0,0 +1,217 @@
+//========================================================================
+//
+// Object.cc
+//
+// Copyright 1996 Derek B. Noonburg
+//
+//========================================================================
+
+#ifdef __GNUC__
+#pragma implementation
+#endif
+
+#include <stddef.h>
+#include "Object.h"
+#include "Array.h"
+#include "Dict.h"
+#include "Error.h"
+#include "Stream.h"
+#include "XRef.h"
+
+//------------------------------------------------------------------------
+// Object
+//------------------------------------------------------------------------
+
+char *objTypeNames[numObjTypes] = {
+  "boolean",
+  "integer",
+  "real",
+  "string",
+  "name",
+  "null",
+  "array",
+  "dictionary",
+  "stream",
+  "ref",
+  "cmd",
+  "error",
+  "eof",
+  "none"
+};
+
+#ifdef DEBUG_MEM
+int Object::numAlloc[numObjTypes] =
+  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+#endif
+
+Object *Object::initArray() {
+  initObj(objArray);
+  array = new Array();
+  return this;
+}
+
+Object *Object::initDict() {
+  initObj(objDict);
+  dict = new Dict();
+  return this;
+}
+
+Object *Object::initStream(Stream *stream1) {
+  initObj(objStream);
+  stream = stream1;
+  return this;
+}
+
+Object *Object::copy(Object *obj) {
+  *obj = *this;
+  switch (type) {
+  case objString:
+    obj->string = string->copy();
+    break;
+  case objName:
+    obj->name = copyString(name);
+    break;
+  case objArray:
+    array->incRef();
+    break;
+  case objDict:
+    dict->incRef();
+    break;
+  case objStream:
+    stream->incRef();
+    break;
+  case objCmd:
+    obj->cmd = copyString(cmd);
+    break;
+  default:
+    break;
+  }
+#ifdef DEBUG_MEM
+  ++numAlloc[type];
+#endif
+  return obj;
+}
+
+Object *Object::fetch(Object *obj) {
+  return (type == objRef && xref) ?
+         xref->fetch(ref.num, ref.gen, obj) : copy(obj);
+}
+
+void Object::free() {
+  switch (type) {
+  case objString:
+    delete string;
+    break;
+  case objName:
+    gfree(name);
+    break;
+  case objArray:
+    if (!array->decRef())
+      delete array;
+    break;
+  case objDict:
+    if (!dict->decRef())
+      delete dict;
+    break;
+  case objStream:
+    if (!stream->decRef())
+      delete stream;
+    break;
+  case objCmd:
+    gfree(cmd);
+    break;
+  default:
+    break;
+  }
+#ifdef DEBUG_MEM
+  --numAlloc[type];
+#endif
+  type = objNone;
+}
+
+char *Object::getTypeName() {
+  return objTypeNames[type];
+}
+
+void Object::print(FILE *f) {
+  Object obj;
+  int i;
+
+  switch (type) {
+  case objBool:
+    fprintf(f, "%s", booln ? "true" : "false");
+    break;
+  case objInt:
+    fprintf(f, "%d", intg);
+    break;
+  case objReal:
+    fprintf(f, "%g", real);
+    break;
+  case objString:
+    fprintf(f, "(%s)", string->getCString());
+    break;
+  case objName:
+    fprintf(f, "/%s", name);
+    break;
+  case objNull:
+    fprintf(f, "null");
+    break;
+  case objArray:
+    fprintf(f, "[");
+    for (i = 0; i < arrayGetLength(); ++i) {
+      if (i > 0)
+	fprintf(f, " ");
+      arrayGetNF(i, &obj);
+      obj.print(f);
+      obj.free();
+    }
+    fprintf(f, "]");
+    break;
+  case objDict:
+    fprintf(f, "<<");
+    for (i = 0; i < dictGetLength(); ++i) {
+      fprintf(f, " /%s ", dictGetKey(i));
+      dictGetValNF(i, &obj);
+      obj.print(f);
+      obj.free();
+    }
+    fprintf(f, " >>");
+    break;
+  case objStream:
+    fprintf(f, "<stream>");
+    break;
+  case objRef:
+    fprintf(f, "%d %d R", ref.num, ref.gen);
+    break;
+  case objCmd:
+    fprintf(f, "%s", cmd);
+    break;
+  case objError:
+    fprintf(f, "<error>");
+    break;
+  case objEOF:
+    fprintf(f, "<EOF>");
+    break;
+  case objNone:
+    fprintf(f, "<none>");
+    break;
+  }
+}
+
+void Object::memCheck(FILE *f) {
+#ifdef DEBUG_MEM
+  int i;
+  int t;
+
+  t = 0;
+  for (i = 0; i < numObjTypes; ++i)
+    t += numAlloc[i];
+  if (t > 0) {
+    fprintf(f, "Allocated objects:\n");
+    for (i = 0; i < numObjTypes; ++i) {
+      if (numAlloc[i] > 0)
+	fprintf(f, "  %-20s: %6d\n", objTypeNames[i], numAlloc[i]);
+    }
+  }
+#endif
+}