file(s) added by xpdf 1.01.

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

diff --git a/pdf2swf/xpdf/GList.cc b/pdf2swf/xpdf/GList.cc
new file mode 100644 (file)
index 0000000..f52bc26
--- /dev/null
+++ b/pdf2swf/xpdf/GList.cc
@@ -0,0 +1,91 @@
+//========================================================================
+//
+// GList.cc
+//
+// Copyright 2001-2002 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifdef __GNUC__
+#pragma implementation
+#endif
+
+#include <aconf.h>
+#include <string.h>
+#include "gmem.h"
+#include "GList.h"
+
+//------------------------------------------------------------------------
+// GList
+//------------------------------------------------------------------------
+
+GList::GList() {
+  size = 8;
+  data = (void **)gmalloc(size * sizeof(void*));
+  length = 0;
+  inc = 0;
+}
+
+GList::GList(int sizeA) {
+  size = sizeA;
+  data = (void **)gmalloc(size * sizeof(void*));
+  length = 0;
+  inc = 0;
+}
+
+GList::~GList() {
+  gfree(data);
+}
+
+void GList::append(void *p) {
+  if (length >= size) {
+    expand();
+  }
+  data[length++] = p;
+}
+
+void GList::append(GList *list) {
+  int i;
+
+  while (length + list->length > size) {
+    expand();
+  }
+  for (i = 0; i < list->length; ++i) {
+    data[length++] = list->data[i];
+  }
+}
+
+void GList::insert(int i, void *p) {
+  if (length >= size) {
+    expand();
+  }
+  if (i < length) {
+    memmove(data+i+1, data+i, (length - i) * sizeof(void *));
+  }
+  data[i] = p;
+  ++length;
+}
+
+void *GList::del(int i) {
+  void *p;
+
+  p = data[i];
+  if (i < length - 1) {
+    memmove(data+i, data+i+1, (length - i - 1) * sizeof(void *));
+  }
+  --length;
+  if (size - length >= ((inc > 0) ? inc : size/2)) {
+    shrink();
+  }
+  return p;
+}
+
+void GList::expand() {
+  size += (inc > 0) ? inc : size;
+  data = (void **)grealloc(data, size * sizeof(void*));
+}
+
+void GList::shrink() {
+  size -= (inc > 0) ? inc : size/2;
+  data = (void **)grealloc(data, size * sizeof(void*));
+}