Initial revision

1 files changed, 168 insertions, 0 deletions

diff --git a/pdf/xpdf/PDFDoc.cc b/pdf/xpdf/PDFDoc.cc
new file mode 100644
index 0000000..886b6a0
--- /dev/null
+++ b/pdf/xpdf/PDFDoc.cc
@@ -0,0 +1,168 @@
+//========================================================================
+//
+// PDFDoc.cc
+//
+// Copyright 1996 Derek B. Noonburg
+//
+//========================================================================
+
+#ifdef __GNUC__
+#pragma implementation
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include "GString.h"
+#include "config.h"
+#include "Page.h"
+#include "Catalog.h"
+#include "XRef.h"
+#include "Link.h"
+#include "OutputDev.h"
+#include "Params.h"
+#include "Error.h"
+#include "PDFDoc.h"
+
+//------------------------------------------------------------------------
+// PDFDoc
+//------------------------------------------------------------------------
+
+PDFDoc::PDFDoc(GString *fileName1) {
+  FileStream *str;
+  Object catObj;
+  Object obj;
+  GString *fileName2;
+
+  // setup
+  ok = gFalse;
+  catalog = NULL;
+  xref = NULL;
+  file = NULL;
+  links = NULL;
+
+  // try to open file
+  fileName = fileName1;
+  fileName2 = NULL;
+#ifdef VMS
+  if (!(file = fopen(fileName->getCString(), "rb", "ctx=stm"))) {
+    error(-1, "Couldn't open file '%s'", fileName->getCString());
+    return;
+  }
+#else
+  if (!(file = fopen(fileName->getCString(), "rb"))) {
+    fileName2 = fileName->copy();
+    fileName2->lowerCase();
+    if (!(file = fopen(fileName2->getCString(), "rb"))) {
+      fileName2->upperCase();
+      if (!(file = fopen(fileName2->getCString(), "rb"))) {
+	error(-1, "Couldn't open file '%s'", fileName->getCString());
+	delete fileName2;
+	return;
+      }
+    }
+    delete fileName2;
+  }
+#endif
+
+  // create stream
+  obj.initNull();
+  str = new FileStream(file, 0, -1, &obj);
+
+  // check header
+  str->checkHeader();
+
+  // read xref table
+  xref = new XRef(str);
+  delete str;
+  if (!xref->isOk()) {
+    error(-1, "Couldn't read xref table");
+    return;
+  }
+
+  // read catalog
+  catalog = new Catalog(xref->getCatalog(&catObj));
+  catObj.free();
+  if (!catalog->isOk()) {
+    error(-1, "Couldn't read page catalog");
+    return;
+  }
+
+  // done
+  ok = gTrue;
+  return;
+}
+
+PDFDoc::~PDFDoc() {
+  if (catalog)
+    delete catalog;
+  if (xref)
+    delete xref;
+  if (file)
+    fclose(file);
+  if (fileName)
+    delete fileName;
+  if (links)
+    delete links;
+}
+
+void PDFDoc::displayPage(OutputDev *out, int page, int zoom, int rotate,
+			 GBool doLinks) {
+  Link *link;
+  double x1, y1, x2, y2;
+  double w;
+  int i;
+
+  if (printCommands)
+    printf("***** page %d *****\n", page);
+  catalog->getPage(page)->display(out, zoom, rotate);
+  if (doLinks) {
+    if (links)
+      delete links;
+    getLinks(page);
+    for (i = 0; i < links->getNumLinks(); ++i) {
+      link = links->getLink(i);
+      link->getBorder(&x1, &y1, &x2, &y2, &w);
+      if (w > 0)
+	out->drawLinkBorder(x1, y1, x2, y2, w);
+    }
+    out->dump();
+  }
+}
+
+void PDFDoc::displayPages(OutputDev *out, int firstPage, int lastPage,
+			  int zoom, int rotate) {
+  Page *p;
+  int page;
+
+  for (page = firstPage; page <= lastPage; ++page) {
+    if (printCommands)
+      printf("***** page %d *****\n", page);
+    p = catalog->getPage(page);
+    p->display(out, zoom, rotate);
+  }
+}
+
+GBool PDFDoc::saveAs(GString *name) {
+  FILE *f;
+  char buf[4096];
+  int n;
+
+  if (!(f = fopen(name->getCString(), "wb"))) {
+    error(-1, "Couldn't open file '%s'", name->getCString());
+    return gFalse;
+  }
+  rewind(file);
+  while ((n = fread(buf, 1, sizeof(buf), file)) > 0)
+    fwrite(buf, 1, n, f);
+  fclose(f);
+  return gTrue;
+}
+
+void PDFDoc::getLinks(int page) {
+  Object obj;
+
+  links = new Links(catalog->getPage(page)->getAnnots(&obj));
+  obj.free();
+}